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Permit M92-0042 - PARRIOTT MARK
M92-0042 PARRIOTT MARK HVAC 4907 SOUTH 161ST STREET o (L City of Th ilk (206 ) 431 -3670 Community Development / Public Works • 6300 Southcenter Boulevard, Suite 100 • Tukwila, Washington 98188 Permit No: M92 -0042 Type: B -MECH Category: RES Address: 4907 S 161 ST Location: Parcel 40: 537980 -0308 TENANT OWNER CONTRACTOR Signature: PARRIOTT MARK T 18655 1ST AVE S , PARRIOTT MARK T 18655 1ST AVE S , SEATTLE WA SUNSHINE SERVICES P.O. BOX 24977.', , Print Name:_ &..' ' J� MECHANICAL PERMIT SEATTLE Lttlb Permit Center Authorized Signature WA 98148 98148 WASHINGTON Valuation: Total Permit Fee: Date :. Status: ISSUED Issued: 03/03/1992 Expires: 08/30/1992 Phone: (206)243 -7075 Phone: (206)243 -7075 Phone: 206 622 -8718 98124 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Permit .Description: ' PAYNE 376CAV3675 75,000 BTU /RUDD P506 40000/ 2.5 TON AIR CONDITIONING UNIT., FOR RESIDENTIAL *********.*************************I!.********** * * * * * * * * * *;r * *. * * * * * * * * * * * * ** ** Date I hereby..: certify that I have read and examined this permit and know the same to be true and correct: All provisions of law and ordinances governing this work will be complied with, whether specified herein Or not The granting of this permit does not . presume to give authority to : violate or cancel the provisions of any other state local laws regulating construction or the performance of work. I. am authorized to sign ` for and obtain this building permit. Z - -aa Titie: $17- 000.00 49.38 This permit shal l''.be'come null and' void -- if the work is no,t, within 180 days from the date of issuance; _or: if " the work is;, or abandoned for a period 180 days, from,..' the last . inspection. PERMIT NO. CONTACTED DATE NOTIFIED InArr_K, ` �] - "la B � DATE READY PERMIT EXPIRES 2nd NOTIFICATION BY: (snit.) AMOUNT OWING LI (A L [ '" 1 ! 3RD NOTIFICATION BY: (init.) PLAN CHECK NUMBER ,1m9c9 Oa INSTRUCTIONS TO STAFF • Contacts with applicants or requests for information should be summarized in writing by staff so that any time the status of the project may be ascertained. • Plan corrections shall be completed and approved prior to sending on to the next department. • Any conditions or requirements for the permit shall be noted on the plans or summarized concisely in the form of a formal letter or memo, which will be attached to the permit. • Please fill out your section of the tracking chart completely. Where information requested is not applicable, so note by using "N /A ". DEPARTMENTAL REVIEW "X" in box indicates which departments need to review the project. rte-• r-�s. �s�r�wR� i SITE ADDRESS BUILDING - 1Z Z initial review JROUTEDL_____ FIRE PROTECTION: (1 Sprinklers [ Detectors fl N/A O FIRE O PLANNING O OTHER I BUILDING - final raviaw REVIEW COMPLETED INIT: INIT: INIT: MECHANIC'. PERMIT APPLICATION TRACKING �Z7 a vvi v'1aVk_ A- u - 7 I L, / S CONSULTANT: Date Sent - FIRE DEPT. LETTER DATED: INSPECTOR: ZONING: SCREENING REQUIRED? (�1Yes REFERENCE FILE NOS.. UMC EDITION (year): n No SUITE NO. E TE EM.ENTS'1<�t3i1111M �!1T Date Approved - 1BAR/LAND USE CONDITIONS? OYes (1 No SITE ADDRESS SUITE # VALUE OF CONSTRUCTION - $ TYPE OF WORK: 0 New /Addition j'Modifications 0 Repair 0 Other: DESCRIBE WORK TO BE DONE: BUILDING USE (office, warehouse, etc.) NATURE OF BUSINESS: WILL THERE BE A CHANGE IN USE? c'No 0 Yes IF YES, EXPLAIN: WILL THERE BE TORAGE OR USE OF FLAMMABLE, COMBUSTIBLE OR HAZARDOUS MATERIALS IN THE BUILDING? A No 0 Yes IF YES, EXPLAIN: PROPERTY OWNER c , / LL. " t i c, -.f� - i U.0 PHONE .71_1. �µ (� ADDRESS 9q0 7 I b I. 1- S 4 ZIP CONTRACTOR S c_iv,S \+ r 0 S c.,/. .1 c e S PHONE ��� _ �c3 7 l cra ADDRESS 7. O. i3 0� 7M-177 EXP. DATE I`IP /2q to ,. r _ ci - WA. ST. CONTRACTOR'S LICENSE # �j (,(rj - S I_4 - S I _ I 33 - Z DESCRIPTION : RCPT.A •.DALE:: >:: BASIC PERMIT; FEE $15.00 UNIT(S)` FEE PLAN CHECK FEE OTHER::: TOTAL CITY OF TUKWILA Department of Community Development - Building Division 6300 Southcenter Boulevard, Tukwila WA 98188 (206) 431 -3670 PLAN CHECK y1 n £9 NUMBER l APPLICATION MUST BE FILLED OUT COMPLETELY TIF:Y: THAT I : ..... RAEOT::A BUILDING OWNER SIGN OR AUTHORIZED AGENT PRINT NAME l'Vkct✓ �� � - ; --• i e ADDRESS . ©. P. c) 2L t ` 177 ; CONTACT PERSON AA CX$% � � 4 " MECHANICAL PERMIT APPLICATION Mechanical Fee Worksheet must also be filled out and attached to this application. FEES (for staff use only) MINED TH i 'A'rimt'siU "Ci PHONE 22. - S7/ CITY /ZIP (36 f 2 Lf PHONE 6 27 - 9)7I 2 APPLICATION SUBMITTAL In order to ensure that your application is accepted for plan review, please make sure to fill out the application completely and follow the plan submittal checklist on the reverse side of this form. A completed "Mechanical Permit Fea Worksheet" must accompany this permit application. Handouts arb available at the Building counter which provide. more detailed Information on application and plan submittal requirements. Application and clans must be complete in order to be accepted for clan review. BUILDING OWNER / AUTHORIZED AGENT If the applicant is other than the owner, registered architect/engineer, or contractor licensed by the State of Washington, a notarized letter from the property owner authorizing the agent to submit this permit application and obtain the permit will be required as part of this submittal. VALUATION OF CONSTRUCTION The valuation is for the work covered by this permit and must be filled in by the applicant. This figure is used for budget reporting purposes only and not to calculate your fees. EXPIRATION OF PLAN REVIEW Applications for which no permit is issued within 180 days following the date of application shall expire by limitation. The Building Official may extend the time for action by the applicant for a period not exceeding 180 days upon written request by the applicant as defined in Section 304(d) of the Uniform Mechanical Code (current edition). No application shall be extended more than once. If you have any questions about our process or plan submittal requirements, please contact the Department of Community Development at 431 -3670. DATE APPLICATION " ACCEPTED a0 1� � DATE APPLICATION EXPIRES Dc - 9 O,1W9Q DESCRIPTION UNIT COST NO OF UNITS X TOTAL COST BASIC FEE $15.00 SUPPLEMENT PERMIT FEE $4.50 U °' 1 Installation or relocation of each forced -air gravity -type furnace or burner, including ducts and vents attached to such appliance, up to and including 100,000 Btu/h. 69.00 t x _ 6 2 Installation or relocation of each forced -air or gravity -type furnace or burner, including ducts and vents attached to such appliance over 100,000 Btu /h. 611.00 X 3 installation or relocation of each floor furnace, including, vent. $9.00 X 4 Installation or relocation of each suspended heater, recessed wall heater or floor- mounted unit heater. $9.00 X 5 Installation, relocation or replacement of each appliance vent installed and not included in an appliance permit. $4.50 X 6 Repair of, alteration of, or addition to each heating appliance, refrigeration unit, cooling unit, absorption unit, or each heating, cooling, absorption, or evaporative cooling system, including installation of controls regulated by this code. $9.00 X 7 Installation or relocation of each boiler or compressor to and including three horsepower, or each absorption system to and including 100,000 Btu /h. $9.00 x 8 Installation or relocation of each boiler or compressor over three horsepower to and including 15 horsepower, or each absorption system over 100,000 Btu /h and including 500,000 Btu /h. $16.50 x 9 Installation or relocation of each boiler or compressor over 15 horsepower to and including 30 horsepower, or each absorption system over 500,000 Btu /h to and including 1,750,000 Btu/h. $22.50 X 10 installation or relocation of each boiler or compressor over 30 horsepower to and including 50 horsepower, or for each absorption system over 1,000,000 Btu /h to and including 1,750,000 Btu /h. $33.50 x 11 Installation or relocation of each boiler or refrigeration compressor over 50 horsepower, or each absorption system over 1,750,000 Btu /h. 656.00 X 12 Each air - handling unit to and including 10,000 cubic feet per minute, including ducts attached thereto. (NOTE: This fee shall not apply to an air - handling unit which is a portion of a factory- assembled appliance, cooling unit, evaporative cooler or absorption unit for which a permit is required elsewhere in this code.) $6.50 X 13 Each air - handling unit over 10,000 cfm. $11.00 X 14 Each evaporative cooler other than a portable type. $6.50 X 15 Each ventilation fan connected to a single duct. $4.50 x 16 Each ventilation system which is not a portion of any heating or air - conditioning system authorized by a permit. $6.50 X 17 Installation of each hood which Is served by mechanical exhaust, including the ducts for such hood. $6.50 X 18 Installation or relocation of each commercial or industrial -type incinerator. $1$,00 x 19 Installation or relocation of each commercial or industrial -type incinerator. $45.00 x 20 Each appliance or piece of equipment regulated by the code but not classed in other appliance categories, or for which no other fee is listed in this code. $6.50 I x 6 50 oensreo SUBTOTAL PLAN CHECK FEE (a q GRAND TOTAL $ CITY OF TUKWILA Department of Community Development - Building Division 6300 Southcenter Boulevard, Tukwila WA 98188 (206) 431 -3670 THIS WORKSHEET MUST ACCOMPANY YOUR MECHANICAL PERMIT APPLICATION. MECHANICAL PERMIT FEE WORKSHEET Fees t Total A:11 Payments: B:a- lance: • * 4 ** * * * * * * * * * * *.h ** * * * * * *. * * * * ** `,CITY TUKWILA, W:A .TRANSMIT , * k**** * * * * ** * *** *. *a4* * * *. *** *k ** * * TRANSMIT Number: 92000150 Amount. 49..38.03/03./92 00144 Permit No: M92- = Type: 13 -MECH .:: MECHANICAL...PERMIT Parcel No ::'537 -0308 Site Address: 4907.: S -' 161 ST Payment Method: CHECK Notation :, SUNS SERVICE I >:******** k*.** **r * * * * *,k **k ** * * **** * *,k* ** t * * *k * * *. * * * * *** Account Code Descri pt i on . 0 . 00/,345.53 . 0:: PLAN CHECK - RES • 0.0/022.100 'MECHANICAL. - RES < Total. '('This: Payment): 9 3 Q GENERA 7.63 GENERA ; :. 30.50 GENERA.. 9.88 ,GENERA 39.50 TOTAL r 87.51 CHECK 87.51 CHANGE.:; 0.00 7510A000 08:42 J�• Address: 4907 S 161 ST Tenant: PARRIOTT MARK T Type: B -MECH Parcel #: 53 -0308 1 S CITY OF TUKWILA Permit No: M92 -0042 Status: ISSUED Applied: 02/20/1992 Issued: 03/03/1992 ** ** * * * ** ** ** * * ** * ** * * * ** ********************** * * ** * * *•k** ** * * ***** ** * * ** * Permit Conditions: 1.. No =changes will be made to the plans unless approved by the Architect and the TukWila Building Division. 2. Plumbing permit shall be obta.n.e the Seattle -King Mx., County Department of P l i .-. `` ` ` J ''_��'' "u i.ng will be inspected by that L agen c y nc 1�ud i r a'l - 1 'ga y p> ping (296 -4722) , ,> �r. ,, , fin ; ; �;, ! ry A a� rjh .t 3. Electrical per shars n l .,l, be4obteine fi through _th Washington State Division of Labo In and' sal el ec : ti i cal work will b.e--= i :- �4s•�.,,"` nsp,ec.t • • U tz e � ' S d, by that agency; v � (277 - 72.72) ; 'ti r�'•'' 4 All perm yt inspe'con re and approved ltons =a sha ,l' be maintaingd2avai l a M1 b , l e at,, the jobl site prior-, to the e fstart any construction . Tp e s e d o r y in a rl"t,s ? r e to be m a i n,t a�i n e d ' ?3 `�, available until final ins a tlon a roval is ranted.r .' t 5. Any e� ', o se�d ,� material shall have a ;, „slam Sprea' Rating offi y2 5 orM less, and�.<material shall bear ' identi' f cat`' on showing the fire per,,, :ormance rating thereof ,t 6. All construction to be .0 conformance with approved'' plans and r`equ'i rement,s *'” bf the `Un i fo Bu i ng Code '} Edl on), Uniform Cc d , (19 888 E Washington St , Energy Code�,.,( E ° 4 / )// ' ? t , , 7. Va id i k t'y - of Permit '` ° Th 1 w. ; t . p . : p p ,� s tr a n c e '�o f a' -•• ei;.m:i t o r s r o y a l a „f plans, specigca't,ions "d ,com' uta'stio°ns•/shal:�i not be con- x strued i.to be . pe'rmi`t, for, or an approval °of , any violation of 00 of the oprov`i "slo,no'f th i s N code�r o Hofany other 'Nr ordinan of the Jurisdiction. o pe`mi,t- -pres #g auth rit' r o r violate or cancel t e ,� ` {., . . rovi si.ons of this 'code sha � E be d �� �,� r f °'t I .,i s � 0,""-'"' . , t' 8. MANUF TUR RS INSTALLATION INSTRU,CTIONS� ED ON SITE '. FOR T ?BUILDING INSPECTORS REVIEW. %,,, t 1 , r Y ,t' 9. 75, 00 BTU MAXIMUM : ALLOWED PF' STATE ENERGY. ( DE 1'61 o `ta + ''+ 5 ' e""� ra n , W M1 � ' i "6r Prof: e' r Type of Ins. ' ion: ress: C�, CCU , ..J • I �� Da Ca :.: � •r n lX.� , Special instructi ns: Date Wanted: I p..� w a r J Ap p.m, Requester; -�� 1, v. '�{.L I ,�ct , oiy I 1 Phone No.: L I ' a Inspect CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd., #100, Tukwila, WA 98188 X Approved per applicable codes. si- I if'1 /",-- -2 — ❑ $30.00 REINSPECTION FEE REQUIRED. Prior to reinspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. r oc* No,: Date: ��,+�,' ..... -» i r „ �, y.�'.� .i , IN$RECTION RECORD Retain a copy with permit Corrections required prior to approval. NAME: ADDRESS: 02/19/92 HEAT LOSS ITEM Windows and Doors ! U.T. ' U.T. 40 50 QUANTITY 5q. Ft, HEAT LOSS Sin le Pane 44 55 _ Double Pane 25 31 ; _ .�, to 3 Triple Pane 17 20 " Storm Windows 20 25 _ Doors 1W Solid 19 24 "?f Door w /Sturm Door 14 17 Other Wall Frame (Net Arras ) Sg Ft. Rtu /Hr. No Insulation 9 11 w /R`7 4 5 , Wall Brick,Studa No Insulation 7 if ,� w /R•7 4 4 w /R- 1919 2 2 Other I Wall Conc., Above Grade Sp. 1, Btu /Hr. Nn Insulation ,_ , 32 40 w /R -4 8 10 Walt Conc. Below Grade Sg, Ft. Btu Hr. NO Insulation 4 6 w /R•3 4_ 5 w /R -7 ,_t „•/R -11 __- 2 Ce!!!ng toc Ventilated Attic Nn Insulation w/k-7 w /R -19 w /R -30 w/R •40 25 26 STYLE HOUSE AGE HOt•ISE 3 a HEATED SQUARE FOOTAGE . RECEIVED C%TV OF TUKWIU FEB 2 0 1992 PERMIT CENTER 14:35 SEATTLE INSTALLATIONS C HEATING LOAD CALCULATION FORM WNG 866 S (10/68) 3 - •---- -••-•- - - - - - -•--Tr RECOMMENDED FURNACE (Model aj HEAT t OSS ITEM U.T. U.T. QUANTITY HEAT LOSS 40 50 Roof w /out Ask Blu /Hr. No Insulation _ 10 112 w /R -4 _ 5 6 w /11•7 w /R -11 ___ —_ `3 3 . —. w /R -19 _._ 2 ?_ Other - f - � Cone, Block Walls 8" Block ___ •lt1 Other Slab Surface Floors No InsuL tine Infiltration_(See Betnw — _ v_? Air Chan e/l 11. .4 ? Air t.hanr /Hr. 1 Air ChanmelHr_ Sq, Ft. Btu /Hr, 20 __. 6 8 _F. Cu. Ft. .642 1b4 Aft C'han�/Hr 1�2 1�4 00 --� sg F t�._�_. BItLHr, Over Unhcat. Ilasr:�1}ent w /Pad R Carkct _ 5 1 5 — ("Jver Unheat. Crawl --_,-, [ _ Nn Ir�SUlalion With Insulation Other BLOWER SIZING (Mr Flow @ 75 --100 CFM per register): Cubic Contents x 3.5 Air Changes = 60 Minutes ._ Min. C F.M. Cubic Conte) x 5 Alt Changes •: 60 Minutes = Max. C.F.M. No. )via registers x 75 --100 . -- To C,F.M, Req. INFILTRATION: 1/2 Air Change per how — Dtreiuo,iy sigh. w /extraordinary meas. 3/4 Air Change per hour — Very tight c.:inatr action 1 Air Change per hour -- Typical house built prior to 1975 1 -1/2 Air Change per hour — Older construction - singgle pane windows - not real light •• Duct loss divide by .85 for uninsulated duds In unheated aced, .9'.; for insulated ducts unheated area, .0 for ducts w /ins. heated area, Sq,.ft. Sq. FL 111o/fir. TOTAL HEAT LOSS: btu /Hr. FURNACE SIZING: . - TOTAL HEAT LOSS - _ -. Plus 10% Oversize Factor x 1.1 By (Duct Loss i aCt ,•+• OUTPUT - -= A,F.U.E, - C� -(�• INPUT Sizes 1 010 and 065 1 075 thru 110 DOWNFLOW Sides — Single -Wall Vent 1 0 Type B -1 Double -Wall Vent 0 0 Back 0 0 Top 1 1 Front — Single -Wall Vent 6 6 Type B -1 Double -Wall Vent 3 3 Vent — Single -Wall Vent 6 6 Type B -1 Double -Wall Vent 1 1 HORIZONTAL (In Alcove/Attic) Sides* 1 0 Back 0 0 Top — Single -Wall Vent 1 1 Type B -1 Double -Wall Vent 1 1 Front 18 18 Vent — Single -Wall Vent 6 6 T •e B -1 Double -Wall Vent 1 1 HORIZONTAL (In Closet) Sides* 1 1 Back 3 3 Top — Single -Wall Vent 2 2 Type B -1 Double -Wall Vent 2 2 Front — Single -Wall Vent 6 6 Type B -1 Double -Wall Vent 3 3 Vent — Single -Wall Vent 6 6 Type B -1 Double -Wail Vent 1 1 ArIZEIMI es installation, startup, and operating instructions DOWNFLOW /HORIZONTAL GAS - FIRED, INDUCED - COMBUSTION FURNACE 376C Series B Sizes 040 thru 110 RECEIVED CITY OF TUKWIIA NOTE: Before beginning the installation, READ THEW pit INSTRUCTIONS CAREFULLY AND COMPLETELY. SAFETY CONSIDERATIONS PERMI Installation and servicing of heating equipment can be haz- ardous due to gas and electrical components. Only trained and qualified personnel should install, repair, or service heating equipment. Untrained personnel can perform basic maintenance func- tions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, tags, and labels attached to or shipped with the unit and other safety precautions that may apply. Follow all safety codes. In the United States, follow all safety codes including the National Fuel Gas Code NFPA No. 64- 1988 /ANSI Z223,1 -1988. In Canada, refer to the cur- rent edition of the National Standard of Canada CAN /CGA- B149.1- and .2 -M86 Natural Gas and Propane Gas Installa- tion Codes. Wear safety glasses and work gloves. Have fire extinguisher available during startup and adjustment pro- cedures and service calls. Recognize safety information: This is the safety -alert sym- bol m. When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for per- sonal injury. TABLE I— CLEARANCES FROM COMBUSTIBLE MATERIALS (In Inches) -- v *Indicates supply or return sides when furnace Is In the horizontal position, —1— Cancels: II 376C -40 -2 1 a EFFICIENCY RATING CERTIFIED ama II 376C-40-3 4/15/90 4 , �unone Understand the signal word— DANGER, WARNING, or CAUTION. These words are used with the safety -alert sym- bol, DANGER identifies the most serious hazards which will result in severe personal injury or death, WARNING signifies a hazard that could result in personal injury or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and prop- erty damage. These instructions cover minimum requirements and con- form to existing national standards and safety codes. In some instances, these instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We require these instructions as a minimum for a safe installation. INTRODUCTION The design of the downflow /horizontal gas -fired furnace is A.G.A. /CGA certified for natural and propane gas and for installation on noncombustible flooring. The furnace may be installed on combustible flooring when installed with the accessory downflow subbase. This furnace is for installation in alcoves, attics, crawl spaces, basements, closets, or util- ity rooms. The design of this furnace line is not A.G.A./ CGA certified for installation in mobile homes, recreation vehicles, or outdoors. Before installing the furnace, refer to the current edition of the National Fuel Gas Code NFPA No. 64- 1988 /ANSI Z223.1 -1988. Canadian installations must be installed in accordance with CAN /CGA.B149 Installation Code and all authorities having jurisdiction. For further information, the National Fuel Gas Code is available from National Fire Protection Association Inc. Batterymarch Park, Quincy, MA 02269, American Gas Association, 1616 Wilson Boule- vard, Arlington, VA 22209, or from Literature Distribution. NOTES: 1. Provide 30 -inch front clearance for servicing, An open door in front of the furnace can meet this requirement. 2, A minimum clearance of 3- inches must be provided in front of the furnace for combustion air and proper operation. 3. Line contact is permitted as shown in Figure 7. Size A D E Vent Conn Ship. Wt 024040 14-3/16 12.9/16 12-11/16 4 124 036040 14-3/16 12.9/16 12-11/16 4 127 024055 14.3/16 12.9/16 12-11/16 4 141 036055 14.3/16 12.9/16 12.11/16 4 145 036075 17-1/2 15-7/8 16 4 154 048075 17-1/2 15-7/8 16 4 154 048095 17-1/2 15-7/8 16 4 171 060095 21 19.3/8 19-1/2 4 181 060110 24-1/2 22-7/8 23 5 192 11 •• , I'S - - NIE• WA 1 ACZESiCPr 1 S •6 39 •! >S 0,3 .•CIE P,■••EP peer _L,� P , >E•iPrl ;AS ENirlr •0. . — - -- 'e 013 au , rP 1. - -- I ACCESSOPr ,. 1_ y r —!---L - -- = _ r r r l r . E A_J• •S C. + 0 APE '.:CA'ED . 1.•E 20P P A.•.0 3 0"31.1 PIAEE 4 EA•.•CSOA' h.44 c•,1P• ". !.- i — t - •SD •0 - #� - -. , • •6 e+ A 34,19,0..2 •.0 i'P LE S.o 'CLE P 1P'l. i ?QC 'LACES) A88324 Figure 1— Dimensional Drawing Reference should also be made to the regulations of the serving gas supplier and the local building, heating, plumb- ing, or other codes in effect in the area in which the installa- tion is made. In the absence of local codes, the installation must conform with the National Fuel Gas Code, ANSI Z223.1-1988. This furnace is designed for a minimum continuous return air temperature of 60 degrees F DB or intermittent opera- tion down to 55 degrees F DB such as when used with a thermostat night setback. Return air temperature must not exceed a maximum of 85 degrees F DB. GS, WARNING:; Improper installation, adjustment, service; maintenance; or use can cause car- bon monoxide poisoning, explosion, fire, electrical Shock,' or other conditions which may cause personal . injury property damage. Consult a qualified installer . service agency, local gas supplier or your distributor or branch for information, or assistance. ; The. qualified or agency must use only factory authorized and listed kits or accessories when modifying this pro& uct. A failure to follow this warning could; result in elec trical shock, fire, personal injury, or death For accessory installation details, refer to the applicable installation literature. NOTE: Remove all shipping brackets and materials before operating the furnace. I. LOCATION A. General A CAUTION: Do not install furnace in a corrosive or contaminated atmosphere. Make sure all combustion and circulating air requirements are followed, in addl ._ Lion to all local codes and ordinances. Do not use this furnace during construction when adhe. lives, sealers, and/or new carpets are being installed. If the furnace is required during construction, use clean outside air for combustion and ventilation. Compounds of chlorine and fiuorine when burned _ with combustion air form acids will cause corrosion of the heat exchangers and metal vent system, Some of these corn- := pounds are found in paneling and dry wall adhesives, paints, thinners, masonry cleaning materials, and many other solvents commonly used in the construction process. • Locate the furnace close to the chimney /vent and as near the center of the air distribution system as possible. The furnace should be installed as level as possible. When a furnace is installed so that the supply ducts carry air to areas outside the space containing the furnace, the return air must also be handled by a duct(s) sealed to the —2— TABLE II-- - IIENSIONS (In Inches) furnace casing and terminating outside the space containing the furnace. Provide ample space for servicing and cleaning. Always comply with the minimum fire protection clearances shown on the unit rating plate. This furnace shall not be installed directly on carpeting, tile, or any combustible material other than wood flooring. The furnace may be installed on com- bustible flooring when installed with the accessory down - flow subbase, which is available from your Distributor or Branch when required. B. Location With Respect to Cooling Equipment The cooling coil must be installed parallel with, or on the downstream side of, the furnace to avoid condensation in the heat exchangers. When installed parallel with a furnace, dampers or other means used to control the flow of air must prevent chilled air from entering the unit. If the dampers are manually operated, they must be equipped with means to prevent operation of either unit unless the damper is in the full -heat or full -cool position. C. Hazardous Locations When the furnace is installed in a residential garage, it must be installed so that the burners and ignition source are located no less than 18- inches above the floor. Also, the fur- should be protected from physical damage by vehicles. When a furnace is installed in public garages, airplane han- gars, or other buildings having hazardous atmospheres, the unit must be installed in accordance with the recommended good practice requirements of the National Fire Protection Association, Inc. II. AIR FOR COMBUSTION AND VENTILATION Provisions for adequate combustion and ventilation air must be provided in accordance with Section 5.3, Air for Combustion and Ventilation, of the National Fuel Gas Code, ANSI Z223.1-1988, or applicable provisions of the local building codes. Canadian installations must be installed in accordance with CAN /CGA.B149 Installation Code, and all authorities hav- ing jurisdiction. A CAUTION: Air for Combustion must not be con *_ Laminated by halogen compounds, which include flu- ride, chloride, bromide and iodide These elements are found in Aerosol sprays, detergents bleaches, cleaning solvents, salts, air: fresheners, an other household products.. All fuel burning equipment must be supplied with air for combustion of the fuel. Sufficient air MUST be provided to insure there will not be a negative pressure in the equipment room or space. In addition, a positive seal MUST be made between the furnace cabinet and the return -air duct to avoid pulling air from the burner area and draft safeguard opening. The requirements for combustion and ventilation air depend upon whether the furnace is located in a confined or uncon. 378C Furnace Input Btuh Free Area per Opening (square Inches) 46,000 100 69,000 100 92,000 100 115,000 115 138,000 138 378C F Btuh Minimum Sq Ft 7.112 Ft wi Ceiling 46,000 307 69,000 460 92,000 613 115,000 767 138,000 920 378C Furnace Input Btuh Free Area per Opening (square inches) Round Pipe (Inches die) 46,000 11.5 4 69,000 17.3 5 92,000 23.0 6 115,000 28.8 7 138,000 34.5 7 -fined space. A confined space is d 1 as a space whose volume is less than 50 cu ft /1000 Btu of the total input rat- ings of all appliances installed in that space. A UMW; THE=. QPERATIQ QE F XHA 1 S, KITCHEN:VENTILATION FAN CLOTHE : _QR` _FIREPLACES-CUU,LD 1 GATIVE PRESSURE CON DITIO iiP E MAKE 1 ';VENTILATION DEVICES► 3 ) THAT_AEQLiIRE iErt HET?URNACE SUPPLY AIR A. Unconfined Space An unconfined space must have at least 50 cubic feet for each 1000 Btuh of input for all the appliances (i.e. furnaces, clothes dryer, water heaters, etc.) in the space. For Example: If the unconfined space is of unusually tight construction, air for combustion and ventilation MUST come from either the outdoors or spaces freely communicating with the out- doors. Combustion and ventilation openings must be sized the same as for a confined space. A minimum opening hav- ing a total of not less than 1 square inch per 6000 Btuh of total input rating for all equipment must be provided. Return air must not be taken from the room, unless an equal or greater amount of air is supplied to the room. B. Confined Space A confined space MUST have two permanent openings, one within 12- inches of the coiling, and the other within 12- inches of the floor. See Figure 2. NOTE: In determining the free area of an opening, the blocking effect of the louvers, grilles and screens must be considered. If the free area of a louver or grille design is unknown, it may be assumed that wood louvers have a 20 percent free area and metal louvers or grilles have a 60 per- cent free area. Screens, when used, must not be smaller than 1/4 -inch mesh. Louvers and grilles must be constructed so they cannot be closed. RETURN AIR f VENT TO ROOF LJ1 AX t SO INCH PER 1000 BTUH. INTERIOR HEATED SPACE 6 MIN (FRONT) t u 1 SO INCH u PER 1000 t STUN. 1 12 MAX *Minimum opening size is 100 square Inches. tMinlmum of 3 inches when type•B vent is used. Figure 2 A68502 —3— The size of the ope( 3 depend upon whether the air comes from inside or outsi a of the structure. 1. All air from inside the structure: Each opening MUST have at least 1 square inch of free area per 1000 Btuh of the total input for all equipment within the confined space, but not less than 100 square inches per opening. See Figure 2. For Example: If the building is of unusually tight construction, a perma- nent opening directly communicating with the outdoors shall be provided. This opening shall have a minimum free area of 1 square inch per 5000 Btuh of total input rating for all equipment in the enclosure. If the furnace is installed on a raised platform to provide a return air plenum, and return air is taken directly from the hallway or space adjacent to the furnace, all air for combus- tion must come from outdoors. See Figure 3. 2. All air from outdoors: a. If combustion air is taken from outdoors through vertical ducts, the openings and ducts MUST have at least one square inch of free area per 4000 Btuh of the total input for all equipment within the con- fined space. For Example: b. If combustion air is taken from the outdoors through horizontal ducts, the openings and ducts MUST have at least one square inch of free area per 2000 Btuh of the total input for all equipment within the confined space. MAX 1212 1 SO INCH PERT 2000 BTUH I DUCTS TO OUTS DE P t SO INCH ER 2000 BTUH MAX 12 B X 12 MAX 1 SO INCH 'PER 4000 BTUH DUCT TO OUTSIDE USE ANY OF THE FOLLOWING COMBINATIONS OF OPENINGS: A &B C&D D&E Figure 3 SUPPLY AIR DUCTS TO ROOF 1 SO INCH PER 4000 STUN 0 VENT + TOR ROOF N RETUR AIR r� A88503 Furnace Casing Width A B Heat -Only HeatlCool" 14.3116 13-1/8 19-5/8 19.7/16 17-1/2 16.7/16 19.518 19-7116 21 19.718 19.5/8 19 -7/16 24-1/2 23-7/16 19-5/8 19-7/16 376C Furnace Input Btuh Free Area per Opening (square Inches) Round Pipe (Inches dia) 46,000 23.0 6 69,000 34.3 7 92,000 46.0 8 115,000 57.6 9 138,000 69.0 10 • • For Example: When ducts are used, they must be of the same cross sec- tional area as the free area of the openings to which they connect. The minimum dimension of rectangular ducts must not be less than 3- inches. See Figure 3. III. SUPPLY -AIR PLENUM INSTALLATION (DOWNFLOW) A. Installation On a Concrete Slab 1. Construct hole in floor per dimensions in Figure 4 and Table III. 2. Place plenum and furnace as shown in Figure 5. ••— A t �• HOLE IN FLOOR A73382 Figure 4 —Floor Opening for Concrete Slab Figure 5— Furnace on a Concrete Slab (Non - Garage Installation) LINE CONTACT ONLY PERMISSIBLE BETWEEN LINES FORMED BY INTERSECTIONS OF THE TOP AND TWO SIDES OF TIE FURN4 JACKET DOR FRAMING. I 'FISTS, *These dimensions apply when a Model 518C or 519D Evaporator Coil casing is to be installed. B. Installation On a Combustible Floor 1. Cut and frame hole in floor per dimensions in Installa- tion Instructions packaged with downflow subbase. 2. When completed, downflow subbase, plenum, and fur- nace (or coil casing when used) should be installed as shown in Figure 6. Figure 7— Typical Attic Installation —4— TABLE 111 —( .NING DIMENSIONS IV. HORIZONTAL ATTIC INSTALLATION ithICW A82178 DOWNFLOW SUBBASE Figure 6— Furnace, Plenum, and Subbase Installed on a Combustible Floor A78651 The furnace can be installed horizontally on either the left - hand (LH) or righthand (RH) side. A typical attic installa- tion is shown in Figure 7. Nominal Iron Pipe Size (Inches) Internal Diameter (Inches) Length of Pipe (fast) 10 20 30 40 50 1/2 0.622 175 120 97 82 73 3/4 0.824 360 250 200 170 151 1 1.049 880 485 375 320 285 1.114 1.380 1400 950 770 6600 580 1 -112 1.810 2100 1460 1180 990 900 Furnace Casing Width Filters D 14.3118 (2)14x20x1 13 17.112 (2)14x20x1 12.118 21 (2)14x20x1 10.518 24.112 (2) 16 x20 x 1 11.3/4 J A. Construct a Working Platform 1. Construct working platform on location where all required furnace clearances are obtainable. See Table I and Figure 7. B. Install Furnace 1. Position furnace in desired location. 2. Connect gas supply pipe, see Figure 7 for typical piping entry. 3. Connect supply - and return-air ducts. a. Install field - supplied filter retainers as indicated in Figure 8 and Table IV before connecting return -air duct to furnace. 4. Install 24- x 24 -inch sheet metal shield on platform in front of louvered control panel, as shown in Figure 7. V. HORIZONTAL CRAWL SPACE INSTALLATION The furnace can be installed horizontally with either the LH or RH side up. In a crawl space, the furnace can either be hung from the floor joist or installed on suitable blocks or pad. The furnace can be suspended from each corner by hanger bolts (four each 3/8 -inch all- thread rod) cut to desired length, 1 x 3/8 flat washer, 3/8 lockwasher, and 3/8 nut. Dimples are provided for hole locations. See Figure 1. The horizontal crawl space installation is very similar to the attic; therefore, refer to Section IV, Subsection B, Steps 1, 2, and 3. The installation of a sheet metal shield in front of the louvered control panel is covered in Step 4. For a crawl space installation, this same sheet metal shield must be installed above the louvered control panel. Extend the sheet metal shield over the furnace top far enough to cover the gas pipe entry hole. VI. FILTER ARRANGEMENT The two factory - supplied filters are shipped in the blower compartment. After the return-air duct has been connected to the furnace, install the filters in a V- formation inside the return-air plenum. See Figure 8 and Table IV for horizontal applications. Horizontal filter retainers must be field sup- plied. See Figure 9 for downflow applications. FIELD - SUPPLIED FILTER RETAINERS A82173 TABLE IV— FILTER RETAINER Figure 8— Horizontal Filter Arrangement —5— ACCESS DOOR RETURN —AMR 1. PLENUM IN9TA LLAf ON POSITION 0R irlfEn9 Figure 9— Position of Filters A88488 VII. GAS PIPING Gas piping must be installed in accordance with national and local codes. Refer to the current edition of the National Fuel Gas Code. Canada installations must be installed in accordance with CAN /CGA.B149 Installation Code, and all authorities hav- ing jurisdiction. The gas supply line should be a separate line directly from the meter to the furnace, if possible. Refer to Table V for recommended gas pipe sizing. Risers should be used to con- nect to the furnace and to the meter. Piping should be pressure - tested in accordance with local and national plumbing and gas codes before the furnace has been attached. If the pressure exceeds 0.5 psig (14 -inch wc), the gas supply pipe must be disconnected from the furnace and capped before the pressure test. If the test pressure is equal to or less than 0.5 psig (14 -inch wc), close the manual shut-off valve located on the gas valve before the test. It is recommended that the ground joint union be loosened before pressure testing. After all connections have been made, purge the lines and check for gas leakage. Install a sediment trap in the riser leading to the furnace. Connect a capped nipple into the lower end of the tee. The capped nipple should extend below the level of the gas con- trols. See Figure 10. Joint compounds (pipe dope) should be applied sparingly TABLE V— MAXIMUM CAPACITY OF PIPE* Ref: Table C-4 NFPA 54/ANSI 2223.1.1988. •Cubic feet of gas per hour, for gas pressures of 0.5 psig (14 inches wc) or less, and a pressure drop of 0.5 Inch wc (based on a 0.60 specific gravity gas). Furnace Slxe Volts. Harts. Phase Operating Voltage Range Mu. Unit Amps Mln. Win Gags Max. Wire Length Feet* Max. Fuss? Or HACR•Typ• CktekrAmps Max.* Mln.• 024040 115 -60 -1 127 104 0.6 14 53 15 038040 115 -60 -1 127 104 8.1 14 44 15 024055 115 -60 -1 127 104 6.7 14 53 15 036055 115 -60 -1 127 104 8.4 14 43 15 036075 115 -60 -1 127 104 9.2 14 40 15 048075 115 -60 -1 127 104 10.2 14 35 15 048095 115 -80 -1 127 104 10.0 14 36 15 060095 115 -60 -1 127 104 13.1 12 44 20 060110 115 -60 -1 127 104 14.3 12 40 20 GAS SUPPLY �- MANUAL SHUTOFF VALVE SEDIMENT TRAP ARNI 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 = 0 0 0 0 0 0 0 0 0 O O O UNION A89414 Figure 10— Typical Gas Pipe Arrangement and only to the male threads of the joints. This pipe dope must be resistant to the action of propane gas. 6c comlbus a ii 'orbth asUee i fot motel Faoa to a`necl%i _It�llltiwater w eoww t o c cleats 1_ An accessible manual shut -off valve shall be installed upstream of the furnace gas controls and within 6 feet of the furnace. A 1/8 -inch NPT plugged tapping, accessible for test gauge connection, must be installed immediately upstream of the gas supply connection to the furnace and downstream of the manual shut -off valve. Place a ground joint union between the gas control manifold and the manual shut -off. b rio aF -�P> y3:a11_ 11).MlA 71 - _ ;.�CtR»l - - - VIII. ELECTRICAL CONNECTIONS A. 115 -Volt Wiring Refer to the unit rating plate or Table VI for equipment electrical requirements. The control system requires an earth ground for proper operation. Make all electrical connections in accordance with the cur- F 'FOND ILK Will I IS•VOLT FIF.LD•SUPPLIED FUSED DISCONNECT FOUR WIRE TWO•WIRE HEATING. ONLY - -J NOTE CONNECT' Y•1EIIMINAL AS SHOWN FOR PROPER OPERATION —8— THERMOSTAT TERMINALS TABLE 4 ELECTRICAL DATA •Perm ssible limits of the voltage range at which the unl will operate satisfactorily. tTime-delay fuse is recommended. $Length shown Is as measured one way along wire path between unit and service panel for maximum 2% voltage drop. rent edition of the National Electrical Code ANSI /NFPA 70, and any local codes or ordinances that might apply. For Canadian installations, all electrical connections must be made in accordance with CSA C22.1 Canadian Electrical Code, or authorities having jurisdiction. ARNING:: The cabweL must lu►vi - ordingYt N Figure 11 — Control Center — FIELD :I VOL I' NIR - •••■• FIELD II) -. :1s1.110., ld1VOLT WIRINO FACI ORV:J•VOLt WIRING FACTORY II' -VOLr WIRING FIELD-SUPPLIED FUSED DISCONNECT' COMM::NSINO 771'0 UNIT NITIE NM.13OOR ltd. VOLT THREE PHASE NYL:.44 VOLT SINGLE 1 PHASE NOTE. IF ANY OF DIE ()RIO Nil. WIRE. AS SL► ►LIED, 11ENr E REPLACED. ESE. SAME TI PE OF Ep1'I *AL EST WIRE. FL 'MALL Figure 12— Heating and Cooling Application Wiring Diagram A78461 A88501 7 ORN WHT I fPL 4 RN • FSFZ I I et 5 BLK ORN SRN BLK RED 8LU WHT PL1 1 5 5 WHT • L2 WHT WHT BLK WHT J;=:=1 BLU YEL RED BLK to OT PS BLK • • L - • IDR I MGVR RED YEL j o- OTP7 055 ALS 2. (WHEN USED) ALS ( H5I BLU PR-2 PR-1 0 TP6 L2 L1 TP1 SEC -1 • 14SIRI I- SE LEGEND ALS 1. AUXILIARY LIMIT SWITCH- MANUAL RESET ALS 20 AUXILIARY LIMIT SWITCH- AUTOMATIC RESET BLWR BLOWER MOTOR RELAY BLWM BLOWER MOTOR CPU MICROPROCESSOR AND CIRCUITRY 1155 DRAFT SAFEGUARD SWITCH EAC -1 ELECTRONIC AIR (LEANER CONNECTION(11SV AC)(1 AMP MAX.) EAC -2 ELECTRONIC AIR CLEAI€R CONNECTION(COMMON) FSE FLAME SENSING ELECTRODE HSI HOT SURFACE IGNITOR (115V AC) HSIR HOT SURFACE IGNITOR RELAY HUM-1 24VAC HUMIDIFIER CONNECTION (.5 AMP. MAX.) HUM HUMIDIFIER RELAY ILK BLOWER DOOR INTERLOCK SWITCH IDM INDUCED DRAFT MOTOR IDR INDUCED DRAFT RELAY LO/HI BLOWER MOTOR SPEED CHANGE RELAY LOT.1 LIMIT OVERTEMPERATURE- MANUAL RESET LOT.2 LIMIT OVERTEMPERATURE- MANUAL RESET LS LIMIT SWITCH, OVERTE PERATURE -AUTO RESET MGV GAS VALVE-REDUNDANT OPERATORS MGVR MAIN GAS VALVE RELAY PL1 11- CIRCUIT EDGE CONNECTOR PL2 2- CIRCUIT HS1 CONNECTOR PL3 2- CIRCUIT IDM CONNECTOR MGV PI-6 ELK 1. (WHEN USED) ORN v WHT IDM rL COM EAC -2 EAC -1 r J 0 WHT 1 A . L am. LO BLWR i O ITP3 CPU LO /HI TP2 0 HUMP TP1 O .5 � iO MAX. BLOWER OFF SELF Y R C G DELAY • TEST 0 0 0 0 • 24V AC 90 135 180 225 o n ConnON n 0. 1 2 GROUND SCREW (NOTE .1) RED O ' LOT .1 RED RED LOT .2 (WHEN USED) ILK SWITCH SWITCH (WHEN REQ'D) FUSED DISCONNECT AUX. J-BOX TiLK 'TLL5 1 WHT -t - - - � -- aN I 1 GRN I 1 ( PL5 LO •W HI o .- PRINTED CIRCUIT BOARD 4 BLWM 3 C SRN E'er' CAP PL4 1- CIRCUIT FS CONNECTOR PL5 5- CIRCUIT BLWM CONNECTOR PL6 2- CIRCUIT 115V AC CONNECTOR PRS PRESSURE SWITCH TRAN TRANSFORMER -115V AC/24V AC TP1 -TP7 TEST POINT (1) THRU (7) - -IF-- JUNCTION O UNMARKED TERMINAL NED TERMINAL FACTORY CONNECTOR O MARKED TERMINAL FACTORY WIRING (120V AC) FACTORY WIRING (24V AC) - - - FIELD WIRING (120V AC) CONDUCTOR ON PCBI 0 FIELD WIRING SCREW TERM. FIELD GROUND f77 EQUIP. GROUND -- FIELD SPLICE -� )- PLUG RECEPTACLE I LK L1 112 HUM -1 G Y R we) 1Kn GND [77 121ftz 2000 EAC -1 EAC -2 120V AC PR- TRAN PR -2 FL2 )r • PL3 IDM LOT.1 LOT.2 0 (WHEN USED) ALS 2. a 1 4 34[11111! ti1�?74 �� r JPL • FSE., PRINTED CIRCUIT BOARD NOTES: 1. COMMON SIDE (SEC -2 AND C) OF 24V AC TRANSFORMER CONNECTED TO GROUND THROUGH THIS MOUNTING SCREW. 2. IF ANY OF THE ORIGINAL EQUIPMENT WIRE IS REPLACED USE WIRE RATED FOR 105 C, OR EQUIVALENT. 3. INDUCER AND BLOWER MOTORS CONTAIN INTERNAL AUTO -RESET THERMAL OVERLOAD SWITCHES. 4. BLOWER MOTOR SPEED SELECTIONS ARE FOR AVERAGE CONDITIONS. SEE INSTALLATION INSTRUCTIONS FOR DETAILS ON OPTIMUM SPEED SELECTION. S. USE COPPER WIRE ONLY BETWEEN THE DISCONNECT SWITCH AND THE FURNACE JUNCTION BOX. 310278 -401 REV. G NOTE: Proper polarity must be mainta4 for 115 -volt wir- ing. If polarity is incorrect, the micropr essor will shut off gas flow shortly after the completion of ignition trial period. B. 24 -Volt Wiring Make field 24 -volt connections at the 24 -volt terminal strip. See Figure 11. Connect terminal Y as shown in Figure 12 for proper operation in cooling mode. Use AWG No. 18 "color - coded" wire only. When the furnace is installed in the horizontal position with RH discharge air, 24 -volt wire connections can be made eas- ier by removing the two control box mounting screws and lettinig the control box turn so that the 24- voltage screw ter- minals are visible. Be sure to reinstall the control box after the connections are made. C. Accessory 1. Electronic air cleaner Two screw terminals (EAC -1 and EAC -2) are provided for electronic air cleaner connection. The terminals are energized with 115 VAC, 1 amp maximum during blower motor operation. 2. Humidifier Screw terminals (HUM -1 and C) are provided for 24- VAC humidifier connection. The terminals are ener- gized with 24 VAC, 0.5 amp maximum during heating blower motor operation. IX. VENTING These instructions are to be used only for 376C Furnace vent systems. These furnaces are equipped with induced - combustion blowers, and are classified as Category I type furnaces in accordance with ANSI /A.G.A. Z21.47 central furnace standards. Category I furnaces use nonpositive, noncondensing vent systems, and may be connected to lined masonry chimneys sized and installed per the National Fuel Gas Code. However, the venting of this furnace into a lined masonry chimney could result in the formation of flue gas condensate due to cold surfaces and oversizing. If condensate is present in the masonry chimney, a drain must be provided to pre- vent condensate flow into the vent connector and furnace. Refer to the National Fuel Gas Code, Section 7.9 for addi- tional information on condensate drains. Field experience on induced - combustion furnaces has shown that venting through a properly sized Type B -1 vent significantly reduces the occurrence of vent condensation. Any conden- sate formed is acidic and could cause corrosion of the vent materials. Therefore, manufacturer suggests (but does not require) that these furnaces be connected to vent systems constructed of Type B -1 vent material. A. 1. General Instructions This furnace must be installed in accordance with these instructions, the National Fuel Gas Code NFPA No. 54.1988/ANSI Z223.1 -1988, Canadian CAN /CGA.B149 requirements, all applicable local codes, and all authori- ties having jurisdiction. 2. This furnace must not be connected to a chimney flue servicing a separate appliance designed to burn solid fuel. 3. Never connect this furnace to a chimney serving a fire- place, unless the fireplace opening is permanently sealed off. 4. The recommended vent system for this furnace is con- structed of Type B -1 double -wall vent pipe (UL or ULC listed). A minimum 1 -inch clearance is required between the Type B -1 vent pipe and combustible material. -8- 5. It may be necessik ;o add insulation to the Type B -1 double -wall vent and to single -wall vent connector, if allowed by local codes, in some applications. When insulation is required, it must be at least 1 -inch thick fiberglass with a foil backing. Using permanent foil tape, attach insulation to vent pipe. (Both the foil tape and fiberglass insulation must be suitable for tem- peratures up to 350 degrees F). 6. Insulation must be added to any vent connector which will be exposed to ambient temperatures of 30 degrees fahrenheit or less, especially any application using single -wall vent pipe as a connector. Add insulation to Type B -1 vent in applications as indi- cated in venting tables with an asterisk(*). Do not insulate vent pipe exposed to outdoor weather conditions (i.e. above roof lines). 7. Do not use a vent size smaller or larger than the size shown in Tables VII thru XIV. 8. If this furnace is connected to a lined, masonry chim- ney, the chimney must be sized and installed according to the provisions of the National Fuel Gas Code, or Canadian CAN /CGA.B149 requirements. Vent connec- tors from the furnace to the chimney should be made with insulated single -wall vent pipe or Type B -1 vent pipe. Insulate per Section A.5 when required. 9. Installation of the vent pipe should be as direct as pos- sible, with a minimum number of turns or elbows. 10. Maintain a minimum of 1/4 -inch upward slope per lin- ear foot on all horizontal vent pipe runs. 11. Rigidly support the vent pipe every 5 feet or less with hangers or straps to ensure that there will be no move- ment after installation. 12. No portion of the vent system shall extend into, or pass through, any circulation air duct or plenum. 13. The Type B -1 vent system shall terminate above the roof surface per the National Fuel Gas Code or CAN/ CGA.B149 requirements, and shall include a UL or ULC listed vent cap or roof assembly, unless prohib- ited by local codes. 14. This furnace may be common vented with another fur- nace or other listed gas -fired appliances. Total input rates of all appliances will determine the vent size. See Sections C and D for additional information. 15. If a common vent system becomes blocked, the furnace will be shut off by the draft safeguard switch located on the inducer assembly. 16. 17. All vent pipe passing through floors, ceilings, and walls must be installed with the proper clearances from com- bustible material, and be fire- stopped according to the National Fuel Gas Code requirements and Canadian standards CAN /CGA.B149. In replacement installation, where an existing vent sys- tem may be used, the vent system must be inspected for condition, size, type of vent material, and height to meet these instructions. If the existing vent system is larger than shown in Tables VII thru XIV, the vent system will be oversized, and condensation could occur 7 7 Height Number of 90° Elbows Vent Pipe 0 1 2 3 4 5 5 0 5 5 4 NA NA 4 -INCH DIAMETER 10 0 10 10 10 10 10 15 0 15 14 14 14 14 20 0 12 12 12 12 12 20' 0 20* 20' 20' 20' 20' 25 0 8 8 8 6 6 25' 0 25* 25' 25* 25* 25' 30 0 4 3 3 3 3 30' 0 30* 30' 30* 30' 30* 5 0 5 5 5 5 5 5 -INCH DIAMETER 10 0 10 10 10 10 10 15 0 6 8 6 8 6 15* 0 15* 15' 15' 15* 15* 20 0 2 2 2 2 2 20* 0 20' 20* 20* 20' 20* 25 NA NA NA NA NA NA 25* 0 25' 25' 25* 25' 25' 30 NA NA NA NA NA NA 30* 0 30* 30* 30* 30* 30* Height Number of 90° Elbows Vent Pipe 0 1 2 3 4 5 5 0 2 NA NA NA NA 4 -INCH DIAMETER 10 0 10 10 8 NA NA 15 0 15 15 15 15 15 20 0 20 20 20 20 20 25 0 22 20 20 20 20 25* 0 25* 25' 25* 25' 25* 30 0 18 18 16 18 16 30* 0 30* 30* 30* 30* 30* 5 0 5 5 5 NA NA 5 -INCH DIAMETER 10 0 10 10 10 10 10 15 0 15 15 15 15 15 20 0 16 16 16 16 16 20* 0 20* 20* 20* 20' 20* 25 0 12 10 10 10 10 25* 0 25* 25* 25* 25' 25* 30 0 8 8 8 8 8 30' 0 30' 30* 30' 30' 30* Height Number of 90° Elbows Vent Pipe 0 1 2 3 4 5 5 NA NA NA NA NA NA 4 -INCH DIAMETER 10 0 10 NA NA NA NA 15 0 15 15 15 NA NA 20 0 20 20 20 14 10 25 0 25 25 24 24 20 30 0 22 20 20 20 20 30* 0 30' 30' 30* 30' 30' 5 0 5 5 2 NA NA - 5 -INCH DIAMETER 10 0 10 10 10 10 10 15 0 15 15 15 15 15 20 0 20 20 20 20 20 25 0 18 14 14 14 14 25* 0 25' 25* 25' 25' 25* 30 0 8 8 8 8 8 30' 0 30' 30' 30* 30* 30* causing corrosion of the vent tern. Installation of a replacement vent system maybe required. 18. When removing an existing furnace from a common vent system, the vent system is likely to be oversized for the remaining appliances. Refer to Section E for additional information. 19. Vent connectors or vents servicing Category I appli- ances shall not be connected into any portion of mechanical draft systems operating under positive pressure. 20. For installation of vent systems not covered in Section IX. B, C, or D (or for vent system lengths /heights beyond those shown) refer to the National Fuel Gas Code for information. Following the National Fuel Gas Code requirements will provide for an acceptable vent system and proper operation of the furnace. B. Venting Tables For Dedicated Vent System (one 376C Furnace) The following tables are used to size a vent system for one 376C Furnace when using a dedicated vent system. The tables indicate the maximum horizontal length of vent pipe allowed for a vent system of a set height and number of elbows. Some tables also include information for vent lengths allowed when insulation is added to the vent connec- tor or vent. See Tables VII thru XI and Figure 14. 1. If single -wall vent pipe is used for vent connector, it must be insulated as indicated in venting table data marked with an asterisk ('). Insulation must be added as specified in Section A.5 and A.6. Insulation should be added to any single -wall vent pipe used as a vent connector, especially those applications with long (over 5 feet) vent connector runs. 2. Each table is for a specific size of furnace, depending upon the rated furnace input. 3. For all applications, the horizontal length of vent and vent connector must not exceed the vertical height of the vent system. 4. The addition of insulation to the vent and vent connec- tor allows for the use of longer horizontal runs in cer- tain applications marked with an asterisk (') in the vent tables. 5. When Type B -1 vent pipe is used for the vent connec- tor, it must be insulated as indicated with an asterisk (') in the vent tables. VENT HEIGHT VENT CAP H !,2 FURNACE t VENT VENT CONNECTOR AB8504 Figure 14— Dedicated Vent (Typical Installation) — TABLE VII-( IDICATED TYPE B -1 VENT FOR 376CAV024040 AND 036040 MAXIMUM HORIZONTAL LENGTH ALLOWED (Feet) TABLE VIII — DEDICATED TYPE B -1 VENT FOR 376CAV0240551AND 036055 MAXIMUM HORIZONTAL LENGTH ALLOWED (Feet) TABLE IX— DEDICATED TYPE B -1 VENT FOR 376CAV036075 AND 048075 MAXIMUM HORIZONTAL LENGTH ALLOWED (Feet) NA—Not allowed. Condensation or positive pressure in vent system could occur. 'Insulated with 1-Inch of foil- backed Insulation as per Section A.S. 378C Size Number of Common Vent Height (Ft) Vent Dia (Inches) Furnaces Minimum Maximum* 024040 & 036040 2 10 40 5 NA 10 40 8 024040 & 036040 3 24 40 5 10 40 6 024040 & 036040 4 18 40 8 10 40 7 024055 & 036055 2 14 40 5 8 40 6 024055 & 036055 3 14 40 6 8 40 7 024055 & 036055 4 14 40 7 10 40 8 036075 & 048075 2 10 40 8 8 40 7 036075 & 046075 3 14 40 7 8 40 8 036075 & 048075 4 14 40 8 10 40 9 048095 & 060095 2 14 .40 6 10 40 7 048095 & 060095 3 10 40 8 8 40 9 048095 & 060095 4 10 40 9 10 40 10 060110 2 14 40 7 8 40 8 060110 3 10 40 9 8 40 10 060110 4 16 40 9 10 40 10 Height Number of 90° Elbows Vent Pipe 0 1 2 3 4 5 5 NA NA NA NA NA NA 4 -INCH DIAMETER 10 NA 10 NA NA NA NA 15 NA 15 NA NA NA NA 20 0 20 14 8 2 NA 25 0 25 20 14 8 2 30 0 30 28 22 16 10 5 0 5 2 NA NA NA 5 -INCH DIAMETER 10 0 10 10 10 NA NA 15 0 15 15 15 15 15 20 0 20 20 20 20 20 25 0 25 25 25 25 25 30 0 22 22 22 22 22 30'* 0 30 30* 30* 30* 30a Height Number of 90° Elbows Vent Pips 0 1 2 3 4 5 5 NA NA NA NA NA NA 5 -INCH DIAMETER 10 0 10 6 NA NA NA 15 0 15 15 15 15 6 20 0 20 20 20 20 20 25 0 25 25 25 25 25 30 0 30 30 30 30 30 5 0 5 5 4 NA NA 8 -INCH DIAMETER 10 0 10 10 10 10 10 15 0 15 15 15 15 15 20 0 20 20 20 20 20 25 0 25 25 25 25 25 30 0 30 30 30 30 30 C. Venting Tables For Common Vent( urnaces (two, three, or four 376C Furnaces) The following information refers to installations where two, three, or four 376C Furnaces are common vented into a sin - TABLE X— DEDICATED TYPE B -1 VENT FOR 376CAVO48095 AND 060095 MAXIMUM HORIZONTAL LENGTH ALLOWED (Feet) NA —Not allowed. Condensation or positive pressure in vent system could occur. *Insulated with 1 -Inch of foil- backed insulation as per Section A.5. TABLE XI— DEDICATED TYPE B -1 VENT FOR 376CAV060110 MAXIMUM HORIZONTAL LENGTH ALLOWED (Feet) NA —Not allowed. Condensation or positive pressure in vent system could occur. HORIZ COMMON VENT / HEIGHT i ; i FURNACE VENT CAP MAXIMUM 40 INCHES t 9) FURNACE A88505 Figure 15— Common Vented Furnaces (Typical Installation) —10— gle vent system. Do r( ;onnect more than four 376C Fur- naces into a common vent system. Table XII provides data for vent systems where all furnaces are of the same size. For common vent applications using various sizes of 376C Furnaces, contact your Dealer /Distributor for more information. To determine the proper common vent size, total the heat input of all the appliances to be connected to the vent sys- tem. Next, select the smallest vent size which will meet that rated input. NOTE: A listed single -wall to Type B -1 vent adaptor is required if single -wall vent pipe is used for the vent connector. 1. Vent connectors should be as short and direct as possi- ble, and should be made of Type B -1 double -wall vent pipe or insulated single -wall vent pipe. 2. Vent connectors shall be sized using dedicated venting tables shown in Section B. The length of horizontal run used in the vent connector and vent must never exceed the height of the common vent. 3. Vent connectors should be spaced at least 1 foot apart when entering the common vent system. 4. Insulated vent connectors may be required for certain applications. See Sections A.5. and A.6. for additional information. 6. For multi -story installation, refer to Appendix G of National Fuel Gas Code or Canadian standards CAN/ CGA.B149 for additional information in sizing the com- mon vent. Individual vent connectors should be sized per the dedicated appliance tables shown in Section B. TABLE XII— COMMON VENTING OF MULTIPLE FURNACES *For applications requiring vent heights longer than 40 feet (or combi- nations other than specified), contact your Distributor /Dealer for more information. 376CAV Size Vent Connector Length (Ft) Vent and Vent Connector insulation Required Common Vent Height (Ft) (Maximum 10 Ft Lateral Run) Common Vent Die (inches) Minimum Maximum* 024040 & 5 — 10 28 5 036040* 22 • yes 6 30 30 024040 & 10 — 10 20 5 036040• 24* yes 8 30 20 024040 & 15 — 10 12 5 036040• 20 yes 8 30 30 024055 & 5 — 5 28 5 038055• 30 yes 5 30 14 024055 & 10 — 5 22 5 038055* 14 yes 5 30 20• 024055 & 15 — 5 18 5 036055• 14 yes 5 30 18 036075 & 5 — 14 30 5 048075* 16 — 5 26 6 6 048095 & 0600954 yes 5 30 5 036075 & 10 — 14 30 5 048075* 8 — 5 20 6 10 10 yes 5 30 30 038075 & 15 — 14 23 5 048075• 30 yes 14 30 — 5 14 8 yes 5 30 048095 & 5 — 16 30 5 060095 — B 30 6 048095 & 10 — 16 30 5 060095' — 8 28 6 yes 8 30 048095 & 15 — 18 30 5 060095• yes 16 30 — 10 22 6 yes 8 30 0601104 5 -- 10 30 6 — 5 30 7 060110t 10 — 10 30 8 — 5 30 7 0601104 15 — 10 30 6 — 5 30 7 376C Size Vent Connector Length (Ft) Common Vent Height (Ft) (No Lateral Runs) Common Vent Ella (Inches) 4 Minimum Maximum ** 30 024040 & 036040t 5 20 10 30 5 024040 & 036040t 10 22 • 30 4 10 30 5 024040 & 036040t 15 NA NA 4 10 24* 5 024055 & 038055 5 20 30 4 10 30 5 024055 & 0380554 10 20 30 4 10 30 5 024055 & 0360554 15 20 30 4 10 30 5 036075 & 048075t 5 14 30 5 5 26'' 8 038075 & 0480754 10 14 30 5 5 20• 8 036075 & 0480754 15 14 22* 5 5 14 6 048095 & 060095t 5 18 30 5 8 30 6 048095 & 0600954 10 16 30 5 8 28* 6 048095 & 0600954 15 18 30 5 10 22* 8 060110* 5 10 30 8 5 30 7 0601104 10 10 30 6 5 30 7 0601104 15 10 30 6 5 30 7 J b. Venting Tables For Common ( s (one 376C Furnace and gas hot water heater) The information in this section refers to the installation of a common vent serving a 376C Furnace and a gas hot water heater. Tables XIII and XIV use typical water heater input rates of 40,000 or 50,000 Btuh. Refer to the water heater rating plate for input ratings of the installed equipment. 1. Size the common vent and vent connector lengths using Tables XIII and XIV. 2. The vent connectors should be as short and direct as possible. 3. Size gas water heater vent connector per National Fuel Gas Code. The 376C Furnace vent connector should be sized using tables in Section B to determine allowable ?engths, number of elbows, and insulation require- ments. The allowable vent connector length for the fur- nace cannot exceed 15 feet for any common vent instal- lation or application, as shown in Tables XIII and XIV. 4. Insulated vents and vent connectors may be required for certain applications. See Table XIV. When insula- tion is required, it must be installed as indicated in Sec- tions A.5. and A.6. 5. If the vent connector is exposed to ambient tempera- tures of 30 degrees fahrenheit or less, it must be insu- lated as indicated in Section A.6 and A.6. 6. The vent connectors must be spaced within 3 feet of TABLE XIII -- COMMON VENT (NO LATERAL RUN) FOR FURNACE AND WATER HEATER NA —Not allowed. Condensation or positive pressure in vent system may occur. *With insulation added, maximum allowed is 30 feet. tinstalled with a 40,000 Btuh gas•fired water heater (typical size). *Installed with a 50,000 Btuh gas-fired water heater (typical size). **For applications requiring vent heights greater than 30 feet, contact your Distributor /Dealer for more Information, —11— each other (;l it rise). 7. Where possible, locate the vent closer to or directly over the smaller appliance connector. VENT CAP COMMON VENT HEIGHT FURNACE WATER HEATER Figure 16— Common Vent With Water Heater (Typical Installation) A88506 TABLE XIV — COMMON VENT (UP TO 10 FEET LATERAL RUN) FOR FURNACE AND WATER HEATER *Installed with a 40,000 Btuh gas•flred water heater (typical size). tlnstalled with a 50,000 Btuh gas-fl ed water heater (typical size). *For applications requiring vent heights greater than 30 feet, contact your Distributor /Dealer for more Information. 8. For multi -story installation, refer( Appendix G of National Fuel Gas Code or Canadian standards CANT CGA.B149 for additional information to size the com- mon vent. Individual vent connector for the furnace should be sized per single appliance tables found in Sec- tion B. The water heater vent connector must be sized per the National Fuel Gas Code. E. Removal of Existing Furnaces From Common Vent Systems 1. These steps shall be followed with each appliance remaining connected to the common vent system placed in operation, while the other appliances remain- ing connected to the common vent system are not in operation. 2. Seal any unused openings in the common vent system. 3. Visually inspect the vent system for proper size and horizontal pitch, and determine there is no blockage or restriction, leakage, corrosion, and other deficiencies which could cause an unsafe condition. 4. Insofar as practical, close all building doors and win- dows and all doors between the space in which the appliances remaining connected to the common vent system are located and other spaces of the building. Turn on clothes dryers and any appliance not con- nected to the common vent system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers. 6. Follow the lighting instructions and place the appli- ance in operation. Adjust the thermostat so appliance will operate continuously. 6. Test for flue gas spillage at the drafthood relief open- ing (or draft safeguard tube opening) after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, etc. 7. After it has been determined that each appliance remaining connected to the common vent system properly vents when tested as above, return doors, win- dows, exhaust fans, fireplace dampers, any other gas - burning appliances to their previous condition of use. 8. If improper venting is observed during any of the above tests, the common vent system must be cor- rected. The vent system or vent connectors may need to be resized. Resize any 376C Furnace vent system according to these instructions. For any other appli- ances when resizing vent systems or vent connectors, the system or connector must be sized to approach the minimum size as determined using the appropriate table found in Appendix G of the National Fuel Gas Code, or Section 5 of CAN /CGA.B149 for Canadian standards. X. STARTUP, ADJUSTMENT, AND SAFETY CHECK A. General The furnace must have a 116 -volt power supply properly connected and grounded. Proper polarity must be main- tained for proper operation. Thermostat wire connections at R,W,C, and Y must be made at the 24 -volt terminal block on the control board. The gas service pressure must not exceed 0.5 psig (14 inch wc), but must be no less than 0.16 psig (4.5 inch wc). Before operating the furnace, check each manual reset switch for continuity. If necessary, press the button to reset the switch. The blower compartment door must be in place to complete the 116 -VAC circuit to the furnace. 1. —12— Ai CAUTION: Thi is equipped with two manual reset limit switches in the gas control area. The switches will open and shutoff power to the gas valve if a flame roll-out or an overheating condition occurs in the gas control area Do not bypass the switches. Cot-- rect inadequate combustion air .. supply`problem r reset the switches. B. Sequence of Operation Using the schematic diagram, Figure 13, follow the sequence of operation through the different modes. This fur- nace has a new and unique control system, therefore, read and follow the wiring diagram very carefully. 2. 3. Heating mode The wall thermostat "calls for heat," closing the R and W circuit. The furnace control performs a selfcheck, verifies the pressure switch contacts are open, and starts the inducer motor. a, Prepurge period —As the inducer motor comes up to speed, the pressure switch contacts close to begin a 15 second prepurge period. b. Ignitor warm up —At the end of the prepurge period, the ignitor is energized for a 17 second igni- tor warm -up period. If ignition is not established during the first cycle, the next warm-up period is increased to 45 seconds. All subsequent ignition cycles will be 45 seconds, or until the 116 -VAC power supply is interrupted. By interrupting the 116 -VAC power supply, the warm -up period is auto- matically reset to 17 seconds. c. Ignition sequence —When the ignitor warm -up period is completed the gas valve opens, permitting gas flow to the burners where it is ignited. After 5 seconds, the ignitor is deenergized and a 2 second flame sensing period begins. d. Flame sensing —When burner flame is sensed, the control begins the blower "on" delay period and continues holding the gas valve open. If burner flame is not sensed, the control will close the gas valve and repeat the ignition cycle. e. Blower on delay -60 seconds after burner flame is proven, the blower motor is energized on heating speed. Simultaneously, the humidifier and electronic air cleaner terminals (HUM -1 and C for humidifier, EAC -1 and EAC -2 for electronic air cleaner) are energized. f. Blower off delay —When the thermostat is satisfied, the circuit between R and W is broken, deenergizing the gas valve stopping gas flow to the burners. The blower motor, humidifier, and air cleaner will remain energized 90, 136, 180, or 226 seconds (depending on the blower off -time selection). The furnace is factory -set for a 135 - second blower off delay. g. Post purge —The inducer motor will remain ener- gized 5 seconds after the burners are extinguished. Cooling mode The thermostat "calls for cooling" closing R -G and R -Y circuits. The R -Y circuit starts the outdoor condensing unit, and the combined R -Y and R -G circuit starts the furnace blower motor on cooling speed. The electronic air cleaner EAC terminals are energized with 116 VAC whenever the blower is operating on cooling speed. When the thermostat is satisfied, R -G and R -Y circuits are broken. The furnace blower will continue operating on cooling speed for an additional 90 seconds. Continuous blower mode Gas SPECIFIC GRAVITY OF NATURAL GAS Heat 0.56 0.58 0.60 0.82 0.64 0.68 0.88 0.70 0.72 Value (Btuhlcu ft) OH No. Mnfld Press Orf No. Mnfld Press OH No. Mnfld Press OH No. Mnfld Press Orf No. Mnfld Press Orf No. Mnfld Press OH No. Mnfld Press OH No. Mnfld Press OH No. Mnf Id Press 40 3.2 40 3.3 40 3.4 40 3.5 40 3.7 40 3.8 - - 37 3.2 37 12 860 41 3.5 41 3.6 41 3.7 41 3.8 38 3.2 38 3.3 38 3.4 38 3.5 38 3.6 - - 39 - 39 3.2 39 3.3 39 3.4 39 3.5 39 3.6 39 3.8 - - 40 3.2 40 3.3 40 3.4 40 3.5 40 3.6 40 3.8 875 41 3.3 41 3.5 41 3.6 41 3.7 41 3.8 38 3.2 38 3.3 38 3.4 38 3.4 42 3.7 - - - - 39 3.2 39 3.3 39 3.4 39 3.5 39 3.8 39 3.7 - - - - 40 3.2 40 3.3 40 3.4 40 3.5 40 3.6 40 3.7 40 3.8 890 41 3.2 41 3.4 41 15 41 3.6 41 3.7 41 3.8 - - 38 3.2 38 3.3 42 3.6 42 3.7 - - - - 39 3.2 39 3.3 39 3.4 39 3.5 39 3.6 - - - - - - 40 3.2 40 3.3 40 3.4 40 3.5 40 3.6 40 3.7 905 - - 41 3.2 41 3.4 41 3.5 41 3.6 41 3.7 41 3.8 - - 38 3.2 42 3.5 42 3.6 42 3.7 - - - - 39 3.2 39 3.3 39 3.4 39 3.5 - - - - - - - - 40 3.2 40 3.3 40 I <I'N (717 vi 40 3.5 40 3.6 920 - - - - 41 3.2 41 3.4 41 3.5 41 3.6 41 41 3.8 - - 42 3.4 42 3.5 42 3.6 42 3.7 42 3.8 - - 39 39 3.3 39 3.4 42 3.3 42 3.4 42 3.5 42 3.6 42 3.7 42 3.8 - - 39 3.2 39 3.3 935 - - - - - - - - - - 40 3.2 40 3.3 40 3.4 40 3.5 - - - - - - 41 3.2 41 3.4 41 3.5 41 3.6 41 3.7 41 3.8 42 3.2 42 3.3 42 3.4 42 3.5 42 3.6 42 3.7 42 3.8 - - 39 3.2 950 - - - - - - - - - - - - 40 3.2 40 3.3 40 3.4 - - - - - - - - 41 3.2 41 3.3 41 3.5 41 3.6 41 3.7 - - 42 3.2 42 3.3 42 3.4 42 3.5 42 3.6 42 3.7 42 3.8 - - 965 43 3.7 - - - - - - - - - - - - 40 3.2 40 3.3 - - - - - - - - - - 41 3.2 41 3.3 41 3.4 41 3.5 - - - - 42 3.2 42 3.3 42 3.4 42 3.5 42 3.8 42 3.7 42 3.8 980 43 3.6 43 3.7 - - - - - - - - - - - - 40 3.2 - - - - - - - - - - - - 41 3.2 41 3.3 41 3.4 - - - - - - 42 3.2 42 3.3 42 3.4 42 3.5 42 3.6 42 3.7 995 43 3.5 43 3.6 43 3.8 - - - - - - - - - - - - - - - - - - - - - - - - - - 41 3.2 41 3.3 - - - - - - - - 42 3.2 42 3.3 42 3.4 42 3.5 42 3.8 1010 43 3.4 43 3.5 43 3.6 43 3.6 - - - -- - - - - - - - - - - - - - - - - 42 3.2 42 3.3 42 3.4 42 3.5 1025 43 3.3 43 3.4 43 3.5 43 3.7 43 3.8 - - - - - - - - 44 3.8 - - ••- - - - - - - - - - - - - - 42 3.2 42 3.3 42 3.4 1040 43 3.2 43 3.3 43 3.4 43 3.6 43 3.7 43 3.8 - - - - - - 44 3.7 44 3.8 - - - - - -- - - - - - - - - - - - - - - - - - - - - - - 42 3.2 42 3.3 1055 - - 43 3.2 43 3.3 43 3.5 43 3.6 43 3.7 43 3.8 - - - - 44 3.6 44 3.7 44 18 - - - - - - - - - - - - - - - - - - - - - - - - - - - 42 3.2 1070 - - - - 43 3.3 43 3.4 43 3.5 43 3.6 43 3.7 43 3.8 - - 44 3.5 44 3.6 44 3.7 44 3.8 - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1085 - - - - 43 3.2 43 3.3 43 3.4 43 3.5 43 3.8 43 3.7 43 3.8 44 3.4 44 3.5 44 3.6 44 3.7 - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1100 - - - - - - 43 3.2 43 3.3 43 3.4 43 3.5 43 3.6 43 3.7 44 3.3 44 3.4 44 3.5 44 3.6 44 3.7 - - - - - - - - TABLE XV -MODEL 376( RIFICE SIZE AND MANIFOLD PRESSI ;,, . FOR CORRECT INPUT RATE (Tabulated data based on altitude up to 2000 feet and 23,000 Btuh per burner.) When the R -G circuit is made, the blower motor will operate on heating speed. During a call for heat, the blower will stop allowing the furnace heat exchangers to heat up more quickly. The blower will revert to continuous operation after the heating cycle is completed. When the thermostat "calls for cooling," the blower will operate on cooling speed. When the thermostat is satisfied, the blower will operate an additional 90 sec- onds before reverting back to continuous operation on heating speed. 4. Heat pump mode When installed with a heat pump, the furnace control automatically changes the timing sequence to avoid long blower off time during demand defrost cycles. When the W -Y or W -Y -G thermostat inputs are received together, the control will change the blower to heating speed or start the blower if it was off, and begin a heating cycle. The blower will remain on until the end of the purge period, then shut off until the end of the ignition warm up and trial for ignition periods (a -13- total of 24 seconds). The blower will then come back on at heating speed. When the W input signal disappears, the control will begin the normal inducer post -purge period and the blower will change to cooling speed after a one second delay. If the W -Y -G signals should disappear together, the blower will remain on for the selected heating blower off delay period, and the inducer will go through its normal post -purge period. If the W -Y inputs should disappear, leaving the G signal input, the control will go into continuous blower and the inducer will remain on for the normal post -purge period. While in heat pump mode, the control will use only the 17 second ignition warm -up period, and will not use the 45 second period at all. The control will initiate a 90 second blower only on delay before starting another heat pump cycle, if there is a power interruption. Any time the control senses false flame, the control will lock out of the heating mode. This occurs because the con- trol cannot sense the W input due to the false flame signal, and as a result sees only the Y input and goes into cooling mode blower off delay. All other control functions remain in standard format. C. Startup Procedures 1. Self test —The furnace features a self -test system to help diagnose a system problem in the case of a compo- nent failure. Two test pins (ST -1 and ST -2) are located in the upper right -hand corner of the control board as shown in Figure 10. To initiate the self -test procedure, momentarily short across the two pins. NOTE: The self -test feature will not operate if the con- trol board is receiving any thermostat signals. The self -test sequence is as follows: a. The furnace control will check itself and then oper- ate the inducer motor for 10 seconds, then off. b. The hot surface ignitor is then energized for 15 sec- onds, then off. c. The humidifier relay is then energized for 10 sec- onds, then off. d. The blower motor will operate on cooling speed for 10 seconds, then off. e. The blower motor will operate on heating speed for 10 seconds, then off. 2. Purge gas lines —After all connections have been made, purge the lines and check for leaks. �tNA RNINC�:)4eyer ': - 1 r >i Ott ever „�i�e== ms��hei; yt� r ISO lu ie� ova oousres of a or pea - c hi u ee ai tea�ce: ti= a liire1 3. To operate furnace, follow procedures on operating instruction label attached to furnace. 4. With furnace operating, set thermostat below room temperature and observe that furnace goes off. Set thermostat above room temperature and observe that furnace restarts. D. Adjustments 1. Set gas input rate. There are two methods of adjusting the gas input rate. The preferred method is by using Table XV and Step a. The second method is by clocking the gas meter' and Step b. The gas valve regulator has been nominally -set at 3.6 inches wc for natural gas. When adjusting input rate, do not set manifold pressure above 3.8 or below 3.2 inches wc. a. Check gas input rate using Table XV. (1.) Obtain average yearly heat value for local gas supply. (2.) Obtain average yearly specific gravity for local gas supply. (3.) Verify furnace model. Table XV can only be used for Model 376C Furnaces. (4.) Check and verify orifice size in furnace. NEVER ASSUME THE ORIFICE SIZE, ALWAYS CHECK AND VERIFY. kk CAUTION DO N uraer .orifices, Improper drilling(burrs, ut-of tad M .� cause excessive burner noise and misdirection of burner !lames. This can result In `#came . ,iinpl# et> nt of burners and heat exchangers; causi g fill "Y (5.) Find natural gas heat value and specific gravity in Table XV, — 14 — (6.) Follow heat value and specific gravity lines to point of intersection. Find orifice size and mani- fold pressure settings for proper operation at given natural gas conditions. r EXAMPLE: 1 Heat value 1070 Btu /cu feet Specific gravity 0.58 Therefore; Orifice No. 44' Manifold pressure 3.6 inches wc The furnace is shipped with No. 43 orifices. Therefore, in this example all main burner orifices must be changed and L the manifold pressure must be adjusted. (7.) Proceed to Step c. to adjust manifold pressure. b. Check gas input rate by clocking gas meter. (1.) Obtain average yearly heat value for local gas supply. (2.) Check and verify orifice size in furnace. NEVER ASSUME THE ORIFICE SIZE, ALWAYS CHECK AND VERIFY. (3.) Turn off all gas appliances and pilots. (4.) Start furnace and let run for 3 minutes. (5.) Measure time (in seconds) for gas meter to com- plete one revolution. (6.) Refer to Table XVI for cubic feet of gas per hour. (7.) Multiply gas rate cu ft /hr x heating value (Btu/ cu ft). 'EXAMPLE: Btu heating input = Btu /cu ft times cu ft /hr (Heating value of gas = 1070 Btu /cu ft Time for one revolution of 2 -cu /ft dial = 72 seconds (Gas rate = 100 x 1070 = 107,000 Btuh L J (8.) Measured gas input should not exceed gas input on unit rating plate. (9.) Proceed to Step c. to adjust manifold pressure. c. Adjust gas input. (1.) Remove regulator adjustment seal cap. See Fig- ure 17. MANUAL ON/OFF INLET PRESSURE TAP REGULATOR ADJUSTMENT MANIFOLD PRESSURE TAP Figure 17— Redundant Automatic Gas Control Valve A90044 Seconds for one Revolution SIZE OF TEST DIAL Seconds (SIZE for one Revolution OF TEST DIAL 1 cu ft 2 cu ft 5 cu 1 cu ft 2 cu ft 5 cu ft 10 360 720 18 50 144 360 11 327 655 if 1636 51 141 355 12 300 600 If 1500 52 CI m 138 346 13 277 555 1385 53 136 340 14 257 514 1286 54 133 333 15 240 480 1200 55 131 327 18 225 450 1125 56 129 321 17 212 424 1059 57 CD 126 316 18 200 400 1000 58 124 310 19 189 379 947 59 122 305 20 180 380 900 80 60 300 21 171 343 857 82 58 290 22 164 327 818 84 56 N 1— 281 23 157 313 783 88 54 273 24 150 300 750 88 53 265 25 144 288 720 TO 103 257 26 138 277 892 72 100 250 27 133 267 667 74 co sr 97 243 28 129 257 843 76 95 237 29 124 248 621 78 92 231 240 80 225 31 232 82 220 32 CO I 225 s 84 Q m CO 214 33 218 86 209 34 212 88 205 35 103 206 514 90 200 38 100 200 500 92 198 37 97 195 486 94 2 CD 192 38 95 189 474 96 188 39 92 185 462 98 184 40 180 450 100 180 41 176 439 102 178 42 CD CO 172 429 104 M 01 co 173 43 167 419 106 170 44 184 409 108 187 45 160 400 110 65 CD CO 100 46 157 391 112 64 47 m 153 383 116 T 82 48 150 375 120 60 49 147 387 Speed Tap No.* Common C HI 1 Med -HI 2 Med•Low 3 Low 4 Gas Sea Level 0 -2000 ft High Altitude 2000 -4600 ft Natural 43 44 Propane 54 55 d. TABLE XVI RATE CU FT/HR (2.) Turn adjusting screw counterclockwise to decrease input. Turn screw clockwise to increase input. DO NOT set manifold pressure less than 3.2 or more than 3.8 maximum inches we for natural gas. Make any major adjust- ments by changing main burner orifices. (3.) When correct input is obtained, replace regula- tor seal cap. Main burner flame should be clear blue, almost transparent. See Figure 18. BURNER FLAME A89020 Figure 18— Burner Flame Approved input ratings. The USA ratings are approved for altitudes up to 2000 feet for natural and propane gases. Refer to National Fuel Gas Code Appendix F, Table F -4 for proper orifice sizing at high altitudes. —15— e. Canadian installations only. The Canadian ratings are approved for altitudes up to 2000 feet for natural and propane gases. High altitude ratings are from 2000 feet to 4500 feet above sea level. See Table XVI1 for nominal burner orifice size. High altitude input ratings include a 10% derate as required by Canadian Standards. TABLE XVII — CANADIAN ORIFICE SIZE 2. Set temperature rise. Do not exceed the temperature rise range specified on the unit rating plate. Determine the air temperature rise as follows: a. Place duct thermometers in return and supply ducts as near furnace as possible. Be sure thermometers do not "see" heat exchangers so that radiant heat will not affect thermometer readings. This is partic- ularly important with straight -run ducts. b. When thermometer readings stabilize, subtract return -air temperature from supply -air temperature to determine temperature rise. c. Adjust air temperature rise by adjusting blower speed. Increase blower speed to reduce temperature rise. Decrease blower speed to increase temperature rise. 1sconf\00 d. To change motor speed taps, remove the motor tap lead (see Table XVIII) and relocate it on the desired terminal on the plug -in terminal block /speed selector located on the blower housing. TABLE XVIII SPEED SELECTOR •White wire from control box to common; black wire from control box to cooling speed selection; red wire from control box to heating and constant fan speed selection. :m CAUTION: Recheck; the te*paratii rise. be within the limits specified' an' t ra Recommended operation = is at ` oid=pgiat above. :.. 3. Set thermostat heat anticipator The thermostat heat anticipation must be set to match the amp draw of the electrical components in the R -W circuit. Accurate amp draw readings can be obtained at thermostat subbase terminals R & W. Figure 19 illus- trates an easy method of obtaining the actual amp draw. The amp reading should be taken after the blower motor has started. See the thermostat manufac- turer's instructions for adjusting the heat anticipator and for varying the heating cycle length. NOTE: When using an electronic thermostat, set cycle rate for three cycles per hour. 3. THERMOSTAT TERMINALS • ' � HOOK•AROUND 10 TURNS , !� VOLTIAMMETER FgOM UNIT 24VOLT TERMINAL BLOCK EXAMPLE: 5.0 AMPS ON AMMETER FROM 0.5 AMPS FOR THERMOSTAT SETTING 10 TURNS AROUND JAWS Figure 19—Amp Draw Check With Ammeter E. Check Safety Controls The flame sensor, gas valve, and pressure switch were all checked in the Startup Section as part of normal operation. 1. Check Primary limit control. This control shuts off the combustion control system and energizes the circulating -air blower motor if the furnace overheats. The preferred method of checking the limit control is to gradually block off the return air after the furnace has been operating for a period of at least 5 minutes. As soon as the limit has shutoff the burners the return -air opening should be unblocked. By using this method to check the limit control, it can be established that the limit is functioning properly and will "operate" if there is a motor failure. 2. Check draft safeguard switch. The purpose of this control is to permit the safe shut- down of the furnace during certain blocked vent conditions. a. Disconnect power to furnace and remove vent con- nector from furnace outlet collar. Be sure to allow time for vent pipe to cool down before removing. b. Set room thermostat above room temperature and restore power to furnace. c. After normal startup, allow furnace to operate for 2 minute, then block (100 %) flue outlet. Furnace should cycle off within 2 minutes. d. Remove blockage and reconnect vent pipe to fur- nace outlet collar. Cads CorpouUon Printed in U.S.A. —16— e. Wait 5 minutes and then reset draft safeguard switch. 3. Check flow - sensing switch. This control proves operation of draft inducer blower. a. Turn off 115 -volt power to furnace. b. Remove control door and disconnect inducer motor lead wires from wire harness. c. Turn on 116 -volt power to furnace. d. Close thermostat switch as if making normal furnace start. If the hot surface ignitor does not glow, then the flow- sensing switch is functioning properly. e. Turn off 115 -volt power to furnace. f. Reconnect inducer motor wires, replace control door, and turn on 115 -volt power. 4. Check auxiliary limits. a. Turn off 115 -volt power to furnace. b. Remove blower access door. c. Disconnect red motor lead at blower speed selector. Mark terminal for proper reconnection. d. Replace blower access door. e. Turn on 115 -volt power to furnace. Be sure room thermostat is calling for heat. f. Allow furnace to operate until auxiliary limit acti- vates, but DO NOT operate furnace longer than 4 minutes. g. If furnace operates for 4 minutes, check/replace limit switch(s). h. Turn off 115 -volt power to furnace. i. Remove blower access door. j. Reconnect red motor lead and replace door. k. Turn on 116 -volt power to furnace. F. Check List 1. Put away tools, instruments, and cleanup debris. 2. Verify manual reset switches have continuity. 3. Verify blower and control access doors are properly installed. 4. Cycle test furnace with room thermostat. 5. Check operation of accessories per manufacturer's instructions. 6. Review User's Guide with owner. 7. Leave literature packet near furnace. Catalog No. BDP- 33374O9