Installation, Start-up, Operating and Service and Maintenance Instructions SAFETY CONSIDERATIONS INTRODUCTION CODES AND Safety ........................ 2 .................................. STANDARDS .......................... ........................................... General Installation Combustion ................................ and Ventilation Duct Systems Air ...................... Acoustical Lining Gas Piping and Gas Pipe Pressure and Fibrous Electrical Connections Venting .
_z1[_6 [,4e,_t f_7/8 Q 51_ _JR_ 57/S-O_S_ 55/S-- _B [_L_2 JU_ t_2A_ Ig2N 27 _V4 _1U4 _,N _15sN _39 A10290 NOTES: 1. Two additional 7/8-in. (22 mm) diameter holes are located in the top plate. 2. Minimum return-air openings at furnace, based on metal duct. if flex duct is used, see flex duct manufacturer's a, For 800 CFM-16-in. (406 mm) round or 14 1/2 x 12-in. (368 x 305 mm) rectangle. b. For 1200 CFM-20-in. (508 mm) round or 14 1/2 x 19 1/2-in. c. For 1600 CFM-22-in.
SAFETY CONSIDERATIONS product and property suggestions which or operation. damage. will result NOTE is in enhanced 1. Use only with type of gas approved to the furnace rating plate. FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON MONOXIDE POISONING HAZARD adjustment, could cause to highlight reliability, for this furnace. 3. Provide adequate combustion and ventilation air to the furnace space as specified in "Air for Combustion and Ventilation" section.
gas.Thisfurnace is notapproved for installation in mobile homes, recreational vehicles, oroutdoors. These furnaces shallnotbeinstalled directly oncarpeting, tile,or anyothercombustible material otherthanwoodflooring. For downflow installations, afactory accessory floorbase mustbe used when installed oncombustible materials andwoodflooring. Thisspecial base isnotrequired when thisfurnace isinstalled on themanufacturer's coilassembly, orwhen themanufacturer's coil boxis used. SeeFig.
Step 7 -- Electrical Connections National Electrical Code (NEC) ANSI/NFPA 70-2008 Step 8 -- Venting NFGC; NFPA 54 / ANSI Z223.1-2012 _'_\ MAX80°F/27 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE FRONT MIN60°F / 16 C FURNACE Improper premature A06745 Fig. 3 - Return Air Temperature CODES AND STANDARDS Follow all national and local codes and standards in addition to these regulations instructions.
AIRFLOW O THE BLOWER iS LOCATED BELOW THE BURNER SECTION, AND CONDiTiONED AiR iS DISCHARGED UPWARD. THE BLOWER iS LOCATED TOTHE RIGHT OFTHE BURNER SECTION, AND AIR CONDiTiONED AiR iS DISCHARGED TO THE LEFT. ! ¢> g[ AIRFLOW THE BLOWER iS LOCATED ABOVE THE THE BLOWER iS LOCATED TO THE LEFT BURNER SECTION, AND CONDiTiONED AIR iS OF THE BURNER SECTION, AND CONDiTiONED AiR iS DISCHARGED TO THE RIGHT. DISCHARGED DOWNWARD AIRFLOW A02097 Fig.
FIRE,INJURY ORDEATHHAZARD Failure to follow this warning could result injury, death, and/or property PROPERTY in personal damage. When the furnace is installed in a residential garage, the burners and ignition sources must be located at least 18 inches (457 mm) above the floor. The furnace must be located or protected to avoid damage by vehicles.
FURNACE Failure CORROSION to follow HAZARD this caution may result in furnace damage. salts, Spaces having less than 50 cubic feet per 1,000 Btuh require Outdoor Combustion Air Method. • Spaces having at least 50 cubic feet per 1,000 Btuh may use the Indoor Combustion Air, Standard or Known Air Infiltration Method. Outdoor Air for combustion nmst not be contaminated by halogen compounds, which include fluoride, chloride, bromide, and iodide.
CIRCULATING DUCTS AIR [_ I I I I I I I I I I I I I I I I VENTTHROUGH ROOF I 12" MAX (305mm) z , o ------1 SO IN. PER 1000 BTUH* IN DOOR O R WALL UNCONFINED SPACE INTERIOR HEATED SPACE 6" MtN (152mm) (FRONT)0 1 SQ IN. PER 1000 BTUH* IN DOOR -- OR WALL L 12" MAX (305ram) CIRCULATING PER 4000 BTUH* OUTDOORS *Minimum dimensions of 3-in. * Minimum opening size is 100 sq in. (64516 sq, mm) with minimum dimensions of 3 in. (76 mm) (76 mm).
Table 3 OTHER (1,000s ACH Minimum THAN Space Volumes FAN-ASSISTED BTUH GAS 40 30 for 100 % Combustion, Ventilation, TOTAL INPUT and Dilution from Indoors FAN-ASSISTED RATE) (1,000s 50 44 BTUH 88 66 S _ace Volume TOTAL GAS INPUT 110 RATE) 132 154 (ft.3) 0.60 1,050 1,400 1,750 1,100 1,650 2,200 2,750 3,300 3,850 0.50 1,260 1,680 2,100 1,320 1,980 2,640 3,300 3,960 4,620 0.40 1,575 2,100 2,625 1,650 2,475 3,300 4,125 4,950 5,775 0.
NOTE: Side return-air most HORIZONTAL openings openings can be used in UPFLOW configurations. in DOWNFLOW DOWNFLOW and Do not use side return-air NOTE: configuration. INSTALLATION For downflow use on combustible accessories are used: applications, fooring • Special • Cased Coil Assembly • Coil Box Part No. KCAKC is approved for any one of the following 3 Base, KGASB 1. Deternfine Bottom this furnace when Part No.
Platform Furnace Support FURNACE (OR COIL CASING WHEN USED) Construct working platform at location where all required furnace clearances are met. (See Fig. 2 and 17.) For furnaces with 1-in. (25 ram) clearance requirement on side, set furnace on non-combustible blocks, bricks or angle iron. For crawlspace installations, if the furnace is not suspended from the floor joists, the ground underneath on blocks or bricks.
Table 4 - Opening FURNACE CASING WIDTH dimensions - In.
1/4'1 (6mm) THREADED 4 REQ. ROD J UTER DOOF ASSEMBLY L, SECURE ANGLE IRON TO BOTTOM OF FURNACE WITH 3 #8 xS/4'' (19ram) SCREWS TYPICAL FOR 2 SUPPORTS 8" (203mm) FOR DOOR MIN REMOVAL 1" (25mm) SQUARE, 1-1/4"xt-1/4"xl/8" (32x32x3mm) ANGLE IRON OR UNI-STRUT MAY BE USED (2) HEX NUTS, (2) WASHERS REQ. PER ROD & (2) LOCK WASHERS A10130 Fig.
LINE CONTACT ONLY PERMISSIBLE BETWEEN LINES FORMED BYINTERSECTIONS OF THETOP AND TWO SIDES OFTHEFURNACE JACKET AND BUILDING JOISTS, STUDS, ORFRAMING. 173/4" 4 3/4" (451 mm)OVERALL (121mm) UNDER DOOR 1" (25mm) UNDER ENTRY FURNACE EXTEND OUT 12" (305mm) FROM FACE OF DOOR VENT A _0-1N. (762mm) MIN WORK AREA *WHEN USED WITH SINGLE WALL VENT CONNECTIONS EQUIPMENT MANUAL SHUT-OFF GAS VALVE SEDIMENT TRAP UNION A10164 Fig. 17 - Typical Not all horizontal connections.
Table 5FURNACE SIZE RETURN-AIR INLET 045- 08 / 024045 Bottom or 045-12/ 036045 Bottom or 070-081 024070 Side(s) Side(s) Bottom or Side(s) / 070-12/ 036070 Bottom or Side(s) 070-16/ 048070 Bottom or 090-14/ 042090 Bottom or Side(s) Side(s) SPEED (With Filter)* EXTERNAL 0.4 STATIC 0.5 (IN. W.C.) 0.7 0.8 0.9 1.0 815 680 585 495 720 600 505 405 605 500 400 305 455 345 235 ....
Table FURNACE SIZE RETURN-AIR INLET or Side(s) Bottom Only Bottom 135-22/ 066135 Sides or 1 Side & Bottom 155- 20/ 060155 Filter)* (Cont.) 0.9 1.
UPFLOW RETURN AIR CONFIGURATIONS AIR FLOW MODELS g RETURN AIR CONNECTION ONLY AND RESTRICTIONS RETURN AIR CONNECTION ONLY 1 2 RETURN AIR CONNECTION ON_ 3 RETURN AIR COMBINATIONS OF1,2, AND 3 066.060,-22AND -20 MODELS YES YES YES YES ALLOTHERMODELS YES YES YES YES | | 1 | ] A02075 Fig.
Gas piping local codes. nmst be installed in accordance Refer to current edition of NFGC Table 6 - Maximum NOMINAL IRON PIPE SIZE INTERNAL DIA. IN. (MM) IN. (MM) 1/2 3/4 Capacity with national in the U.S. and An of Pipe 20 (6.0) 30 (9.1) manual external equipment to furnace casing shutoff valve and within MUST be 6 ft. of furnace. A l/8-in.
.... .... -- FIELD 24-VOLT WIRING FIELD 115-, 208/230-, 460-VOLT WIRING FACTORY 24-VOLT WIRING FACTORY 115-VOLT WIRING NOTE2 FIELD-SUPPLIED FUSED DISCONNECT 208/230- OR 460-VOLT PHASE 115-VOLT FIELDSUPPLIED FUSED DISCONNECT =-__---1208/230= _ .L_rT-r-L__ _ _ LVO LT r _ - -I (SINGLE --_---_.--.._--JPHASE JUNCTION BOX I @ CONTROL BOX -GNDI CONDENSING UNIT @ 24-VOLT TERMINAL BLOCK NOTES: 1. Connect Y/Y2-terminal as shown for proper operation. 2.
Table 7 - 045- OPERATING VOLTAGE RANGE VOLTSHERTZPHASE FURNACE SIZE 08/024045 115- Electrical Data MAX* MIN.* MAX UNIT AMPS 127 104 5.3 7.42 60-1 UNIT AMPACITY# 14 15 14 15 14 37 (11.2) 27 (8.2) 34 (10.3) 28 (8.5) 34 (10.3) 34 (10.3) 15 14 15 14 15 14 15 14 2O 12 15 14 15 14 2O 12 13.28 28 (8.5) 32 (9.7) 27 (8.2) 15 14 14.5 18.61 30 (9.1) 2O 12 15.0 19.34 29 (8.8) 2O 12 104 7.1 9.67 070- 115- 60-1 127 104 5.2 7.
O O A10141 Fig. 25 - Field-Supplied Electrical Box on Furnace 1. Select and remove a hole knockout in the casing where the electrical box is to be installed. Casing 2. Route listed power cord meter hole in J-Box. NOTE: Check that duct on side of furnace will not interfere with installed electrical box. 3. Secure power bushing cord to J-Box or a connector 4. Secure field ground bracket. 3.
THERMIDISTAT TWO-STAGE TWO-SPEED FURNACE AIR THERMIDISTAT TWO-STAGE CONDITIONER TWO-SPEED FURNACE HEAT PUMP NOTE 11 HEAT STAGE 2 RVSCOOLING_ F_7 COOL STAGE I HEAT STAGE 1 HEAT/COOL STAGE 1 (COMPRESSOR LO) ............. r_{7 ........ ,_T_:__[_ ........ ,_h--E__[_ NOTE 12 COOL STAGE 2 "EA_pSuTAGcEE_ 24 VAC HOT [_ 24 rAG [_ 24 VAC COMM [_ _" L2....
DUAL FUEL TWO-STAGE THERMOSTAT TWO-SPEED FURNACE HEAT PUMP TWO-STAGE TWO-STAGE THERMOSTAT FURNACE TWO-SPEED AIR CONDITIONER NOTE 11 RVS COOLING -[_ H EA(Tc/CMOpORL SsTo#RG LEo1) HEA_FSTAGEE3 ............ I_ E23[!3EB- ___._O_T_E_ j _2_ __ HEAT/COOL STAGE 2 (COMPRESSOR HI) FAN 24 VAC HOT [_ 24 VAC COMM [_ -[_ -F¥7_ -- -I-q ............ N/A I_ RVS SENSING NOTE 12 HUM I_ OUTOOOR °S E s%R ........
ACCESSORIES NOTE: 1. Electronic Air Cleaner 1/4-in marked blower 1.0 amps motor 2. Humidifier Connect midifier terminal board maximum EAC operation. terminals and are energized thermostat strip. 115-v may be added HUM terminal is energized. controlled if humidifier operation control HUM terminal to instructions for proper connection. Category I furnace is removed or system may no longer be sized to properly vent the attached appliances.
hood equipped building The CARBON MONOXIDE POISONING HAZARD Failureto follow the steps outlined below for each 1. Seal any unused 2. Inspect the openings venting horizontal pitch, Code, ANSI in venting system for far close and all doors all building between the space the appliance(s) connected to the venting located and other spaces of the building. 4. Close fireplace 5.
CHIMNEY For additional iNSPECTiON CHART requirements refer to the National Fuel Gas Code NFPA 54/ANSI Z223.1 and ANSI/NFPA Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances 211 Rebuild crown.
The Chinmey Adapter Kit is a listed alternative venting system for these furnaces. See the kit instructions for complete details. This furnace is pernfitted to be vented into a clay tile-lined masonry chinmey that is exposed to the outdoors below the roof line, provided: Table 5. The authority having jurisdiction approves.
2.Adjust the gas input rate per the installation instructions. combustion-air supply. Furnace use during construction of the Low gas input rate causes low vent gas temperatures, causing condensation and corrosion in the furnace and/or vent- building could cause the furnace to be exposed to halogen compounds, causing premature failure of the furnace or venting ing system. 2000 fl system Derating is permitted only for altitudes above 3.
SEE NOTES:1,2,3,4,5,7,8,9 onthepage following these figures SEE NOTES: 1,2,4,5,6,7,8,9,10 onthepage following these figures A03210 Fig. 37 - Downflow Application-Vent Elbow A03207 Up then Left Fig. 39 - Downflow SEE NOTES: 1,2,4,5,7,8,9 on the page following these figures Application-Vent Elbow SEE NOTES:1,2,3,4,5,7,8,9 on the page following these figures. A03211 Fig. 38 - Downflow Application-Vent Left then Up Elbow A03212 Up Fig.
f_ ,\ j o o .o . SEE NOTES: 1,2,4,5,7,8,9 following these figures SEE NOTES: 1,2,4,7,8,9 on the page following these figures on the page A03215 A03213 Fig. 41 - Horizontal Left Application - Vent Elbow Left Fig. 44 - Horizontal o SEE NOTES: 1,2,4,5,7,8,9 following these figures Left Application - Vent Elbow o0_ SEE NOTES: 1,2,4,5,7,8,9 on the page following these figures on the page A03214 Fig. 42 - Horizontal Left Application - Vent Elbow Up A03216 Right Fig.
/-X SEE NOTES: 1,2,4,5,7,8,9 A02068 Fig. 47 - Horizontal VENTING 1. For common vent, vent connector sizing Right Application-Vent NOTES and vent material: 4. Type-B vent where required, Left FOR FIG. 35 - 47 United States-use 2. Immediately increase to 5-in. or 6-in. (127 or 152 ram) vent connector required, refer to Note 1 above. 3. Side outlet vent for upflow factory-approved Downflow Elbow the NFGC. outside furnace casing when 5-in.
less with metal hangers after installation. SIDEWALL CUT HAZARD Failure to follow this caution may result in personal Sheet metal parts may have sharp edges and wear appropriate protective clothing, gloves when handling parts and servicing NOTE: Vent connector length iniury. or burrs. Use care safety glasses and furnaces.
Table 10 - 2-Stage Furnace SETUP SWITCH NO. SWITCH NAME NORMAL POSITION SW- 1 Adaptive Heat Mode OFF SW-2 Blower OFF delay ON or OFF SW-3 Blower OFF delay ON or OFF Setup Switch Description DESCRIPTION OF USE When OFF, allows 2-stage operation with a single stage thermostat. Turn ON when using 2 stage thermostat to allow Low Heat operation when R to W/W1 closes and High Heat operation when R to W/W1 and W2 close. Control blower OFF delay time. Used in conjunction with SW-3. See Table 14.
Table 11- Altitude Derate Multiplier for U.S.A. ALTITUDE PERCENT DERATE MULTiPLiER FT.(M) 0-2000 OF DERATE FACTOR* 0 1.00 8-I2 0.90 12-16 0.86 16-20 0.82 20-24 0.78 24-28 0.74 28-32 0.70 32-36 0.66 (0- 61O) 2001-3000 (61O- 914) 3001-4000 (914-1219) 4001-5000 (1219-1524) 5001-6000 1524-1829) 6001-7000 (1829-2134) 7001-8000 (2134- 2438) 8001-9000 (2438-2743) 9001-10,000 36-40 0.62 (2743-3048) * Derate multiplier factors are based on midpoint altitude for altitude range.
cified on Determine NOTE: unit Blower temperature rating access rise reading. result in incorrect Failure to follow injury or death. gas rate cu ft./hr Hole by heating 5. Set low-heat Re-install low-heat value (Btuh/cu regulator rise. The furnace straight-run ft. taking off will could power result and install in personal lockout tag in low heat per Step 3. Place ther- ducts. b.
Table 12SECONDS FOR 1 Gas Rate (cu ft./hr) SECONDS SIZE OF TEST DIAL REVOLUTION 10 11 12 13 14 15 16 17 18 19 2O 21 22 23 24 25 26 27 28 29 3O 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 2 CU FT. 5 CU FT.
If clocked increase pressure rate does not match required input from Step 1, manifold pressure to increase input or decrease manifold to decrease input. Repeat steps b through e until correct high heat input is achieved. cap on gas valve. Re-install high-heat regulator seal FIRE Failure to reinstall manifold pressure tap plug in gas valve could result in personal iniury, property damage or death. 8. Set high heat temperature rise.
Table 14 - 2-Stage Furnace Blower OFF delay Setup Switch DESIRED HEATING MODE SETUP SWITCH SETUP SWITCH BLOWER OFF DELAY (SEC.) 90 SW-2 OFF SW-3 OFF 120 150 OFF ON ON OFF 180 ON ON guard switch did not flmction properly and correct condition. SUBBASE TERMINALS WITH THERMOSTAT REMOVED (ANITICIPATOR, CLOCK, ETC., MUST BE OUT OF CIRCUIT.) f. Remove blockage from furnace vent elbow. g. Switch will auto-reset when it cools. h. Re-install vent connector.
Table (TABULATED 15 - Orifice Size* and Manifold DERATED ALTITUDE AVG. GAS RANGE HEAT VALUE AT ALTITUDE ft (m) 0 / 4 MnfldPress GRAVITY OF NATURAL 0.60 Orifice MnfldPress GAS 0.62 Orifice MnfldPress 0.64 Orifice Mnfld Press IBtu/cu ftI 900 No. 42 Hi,h/Low 3.5 / 1.5 No. 42 ai_h/Low 3.6 / 1.6 No. 42 Hi,h/Low 3.7 / 1.6 No. 41 Hi,h/Low 3.5 / 1.5 925 42 3.3 / 1.4 42 3.4 / 1.5 42 3.5 / 1.5 42 3.7 / 1.6 3.5 / 1.5 3.8 / 1.7 42 3.3 / 1.4 42 3.4 / 1.5 43 3.6 / 1.6 43 3.
Table 15 - Orifice Size and Manifold Pressures (In. W.C.) for Gas Input (TABULATED DATA BASED ON 22,000 BTUH HIGH-HEAT/14,500 Rate (cont.) BTUH LOW-HEAT PER BURNER, DERATED 4%/1000 FT (305M) ABOVE SEA LEVEL) ALTITUDE AVG. GAS RANGE HEAT VALUE AT ALTITUDE ft (m) SPECIFIC GRAVITY OF NATURAL GAS 0.58 Orifice MnfldPress 0.60 Orifice MnfldPress 0.62 Orifice MnfldPress 0.64 Orifice Mnfld Press IStu/cu ft_ 65O No. 44 Hi,h/Low 3.6 / 1.6 No. 43 Hi,h/Low 3.2 / 1.4 No. 43 Hi,h/Low 3.4 / 1.
Table (TABULATED 16 - Orifice Size* and Manifold DERATED ALTITUDE AVG. GAS RANGE HEAT VALUE AT ALTITUDE ft (m) 4 4 4 4%/1000 Rate PER BURNER, FT (305M) ABOVE SEA LEVEL) SPECIFIC 0.58 Orifice for Gas Input / 14,500 BTUH LOW-HEAT MnfldPress GRAVITY OF NATURAL 0.60 Orifice MnfldPress GAS 0.62 Orifice MnfldPress 0.64 Orifice Mnfld Press No. 42 ai_lh/Low 3.2 / 1.5 No. 42 ai_lh/Low 3.3 / 1.6 No. 42 ai_lh/Low 3.4 / 1.6 No. 42 Hi_h/Low 3.5 / 1.7 0 925 43 3.7 / 1.8 43 3.8 / 1.
Table 16 - Orifice Size* and Manifold Pressures (In. W.C.) (TABULATED DATA BASED ON 21,000 BTUH HIGH-HEAT/14,500 for Gas Input Rate (cont.) BTUH LOW-HEAT PER BURNER, DERATED 4%/1000 FT (305M) ABOVE SEA LEVEL) ALTITUDE AVG. GAS RANGE HEAT VALUE AT ALTITUDE (m) 0.60 Orifice MnfldPress 0.62 Orifice MnfldPress 0.64 Orifice Mnfld Press Hi,h/Low 3.3 / 1.6 No. 44 Hi_h/Low 3.4 / 1.6 No. 44 Hi,h/Low 3.5 / 1.7 No. 43 Hi_h/Low 3.2 / 1.5 675 45 3.7 / 1.8 45 3.8 / 1,8 44 3.3 / 1.
SERVICE AND ELECTRICAL MAINTENANCE CONTROLS AND WIRING PROCEDURES ELECTRICALSHOCK FIRE, PERSONAL HAZARD INJURY AND UNIT Failure to follow iniury or death. DAMAGE The ability to properly perform maintenance on this equipment requires certain knowledge, mechanical skills, tools, and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment other than those procedures recommended in the User's Manual.
SERVICE If staius code recall is needed, briefly remove then reconnect one main limit _re to display last stored statL_s code. LED CODE CONTINUOUS OFF CONTINUOUS ON RAPID FLASHING EACH OF THE FOLLOWING 11 STATUS CODES IS A _ DIGIT NUMBER 13 14 21 22 23 24 31 W1TH THE FIRST DIGIT DETERMINED 32 33 34 COMPONENTTEST To initiate the component test sequence, shut OFF the room thermostat or disconnect the "R" thermostat lead. Briefly short the TEST/TWIN terminal to the "Com 24V" termieN.
CONNECTION DIAGRAM RED_ / NOTE #10 FRS1 DSS / \ LS2_ (WHEN USED) R LS1 FUSEOR CIRCUIT FRS2A TO 115VAC FIELD-DISCONNECT SCHEMATIC DIAGRAM (NATURAL GAS & PROPANE) SWITCH I BREAKER & DISCONNECT NEUTP.AI I [-I (WHEN USED) M i NOTE I/2 _ } L1 EQUIPM N1 GROUND L_ IHI!LOR GRN/YEL II I PL2 IDR I HSI L-/ PL5 .... PL4 ,#, SELECT CHART SW LO-HT ONLY L2 BLOWER OFF-DElAY ON OFF nl*ii NORM III II_T go SEC. ON OFF 1! H_T u ONLY l LO SEC ON LO HEAT see. FT/ ii 180 SEC.
Table FURNACE CASING WIDTH 17 - Filter Size Information FILTERSIZE SIDE RETURN (In.
problem exists adjustment needs result in shortened to correct heat Heating fan speed(s) MUST be adjusted to provide proper air temperature rise as specified on the rating plate. Recommended operation is at the midpoint of the rise range or slightly above. Refer to "SET TEMPERATURE RISE" under START-UP, ADJUSTMENT, and SAFETY CHECK. 1. Turn OFF gas and electrical 2. Remove blower 3. Disconnect 4. For vent connector downflow assembly to blower and connect thermostat b.
striking withball-peen hammer. TIGHTNESS ISVERY IMPORTANT. NOTE:Thematerials needed initem9canusually bepurchased atlocalhardware stores. (1.)Attach variable-speed, reversible drilltotheendof spring cable (endopposite brush). (2.)Insert brush endofcable intotheoutlet opening of cellandslowlyrotate withdrill.DONOTforce cable. Gradually insert cable intoupper pass ofcell. (See Fig.55.) (3.)Workcable inand outofcell3or4times toobtain sufficient cleaning. DONOTpullcable withgreat force.
control CPU,transformer TRAN, motor igniter HSI, and gas valve GV. BLWM, hot-surface 1, Two-Stage Stage Heating (Adaptive motor IDM, mode) with blower control The Single- flame-proving 23 or 32 for thermostat low-heat only switch connections) (LHT) selects either heat. (See Fig. 33.
The start up and shut down flmctions and delays described in item 1. above apply to the 2-stage heating mode as well, except for switching from low- to high-Heat and vice versa. The wall thermostat "calls for cooling", closing the R-to-G-and-Y circuits. The R-to-Y1 circuit starts the outdoor unit on low-cooling speed, and the R-to-G-and-Y1 circuits starts the furnace blower motor BLWM at low-cool speed (same speed as LO HEAT).
fromCOOL toHIHEAT foran_axinmm of10minutes before reverting backtoCOOL speed. If there isstilla demand fordehumidification after 20minutes, thefurnace control CPU willdroptheblower speed backtoHI HEAT speed. Thisalternating 10-minute cycle willcontinue aslongasthere isacallforcooling. c.
TROUBLESHOOTING GUIDE START J_ Is LED status light on? Is there 115V at L1 and L2? -_-_ _ Is door switch closed? switch closed? YES YES YES ! Is there 24v at sEC-1 and SEC-2? 14Is circuit breaker I ls there 115V going to switch? closed? r YES YES YES I Replace furnace control. I l _ Replace | Check for continuity breaker to furnace. / Close circuit breaker transformer. in wire from circuit and go back to START.
NO PREVIOUS CODE Stored codes are erased after 72 hours. On RED LED boards stored status codes can also be ._111 32 longer than 5 minutes, inducer shuts off for t5 minutes before retry, if opens during blower on-delay period, blower will come on for the selected blower off- erased whenever power (t t5V or 24V) is interrupted.
PARTS REPLACEMENT CASING INFORMATION GROUP GAS CONTROL GUIDE GROUP Outer door Manifold Blower door Burner Top filler plate Orifice Bottom filler plate Flame sensor Bottom enclosure Hot surface igniter assembly Gas valve ELECTRICAL GROUP Manual reset linfit switches Burner support Linfit switch(es) Circuit board HEAT EXCHANGER Door switch Cell panel Control bracket Junction box Heat exchanger Transformer harness l15v Wiring harness 24v BLOWER INDUCER GROUP Housing as
Copyright 2013 Carrier Corp. • 7310 W. Morris Manufacturer reserves the right to change, St. • Indianapolis, IN 46231 at any time, specification8 and design8 Printed without in U.S.A.
