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Gas/Propane Furnace Mobile Home Manual

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2. Speed Tap Furnace Airflow CFM vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 836 805 773 743 695 620 566 ML 1044 1010 972 914 860 826 752 MH 1250 1196 1146 1101 1038 977 902 High 1339 1338 1283 1233 1162 1086 1008 Speed Tap Temperature Rise vs External Static Pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 53 55 57 59 63 71 78 ML 42 44 45 48 51 53 59 MH 35 37 38 40 42 45 49 High 31 33 34 36 38 41 44 Speed Blower Motor Current Draw Amps vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 3 3 3 2 3 1 3 0 2 9 2 7 2 6 ML 4 0 3 8 3 6 3 5 3 4 3 2 3 1 MH 4 6 4 4 4 2 4 1 4 0 3 8 3 6 High 5 3 5 1 5 0 4 9 4 7 4 6 4 4 Speed Tap Blower Motor Watts vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 315 311 304 300 292 281 275 ML 400 390 376 363 351 342 330 MH 485 467 452 441 427 412 394 High 573 555 544 530 513 493 477 34 Recommended operation range All installations and services must be performed by qualified service personnel CMA3 75D36 ALTERATIONS REQ D FOR DESIGN EXTERNAL STATIC PRESS
3. CMC1 50DV3 ALTERATIONS REQ D FOR DESIGN EXTERNAL STATIC PRESSURE COOLING UNIT HTG Speed Recommended CLG Speed 24 000 LOW MED LOW 30 000 LOW MED HIGH 36 000 LOW HIGH Speed Tap Furnace Airflow CFM vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 700 639 567 497 437 387 332 ML 876 834 781 725 653 602 556 MED 990 948 907 857 811 756 700 MH 1174 1145 1107 1066 1026 987 942 High 1398 1365 1326 1299 1265 1252 1190 Speed Tap Temperature Rise vs External Static Pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 63 69 78 88 101 114 132 ML 50 53 56 61 67 73 79 MED 44 46 48 51 54 58 63 MH 37 38 40 41 43 45 47 High 31 32 33 34 35 35 37 Speed Tap Blower Motor Current Draw Amps vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 1 1 1 1 1 2 1 2 1 2 1 3 1 4 ML 1 7 1 7 1 8 1 8 1 9 1 9 2 0 MED 2 2 2 2 2 3 2 4 2 5 2 5 2 5 MH 3 4 3 4 3 4 3 5 3 6 3 6 3 7 High 5 2 5 2 5 2 5 3 5 3 5 4 5 5 Speed Tap Blower Motor Watts vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 72 77 81 84 87 91 95 ML 123 127 133 137 141 145 148 MED 168 173 178 183 188 192 197 MH 266 272 277 284 290 296 301 High 438 442 445 450 455 461 468 38 Recommended operation range All installations and services must be performed
4. for CMA CMC furnace EXHAUST COMBUSTION VENT AIR INTAKE RADIATOR HOSE j _ RADIATOR HOSE HOSE CLAMP S HOSE CLAMP 2 PLACES 2 PLACES EXHAUST COMBUSTION VENT AIR INTAKE RADIATOR HOSE RADIATOR HOSE HOSE CLAMP 2 PLACES Oar pow Oo NOTE DRANFITTING J N INSTALL WITH ARROW N POINTINGUP 7 CMC1 75D36 SHOWN Figure 6 Models CMA and CMC have a removable top front panel that will allow for improved access to assist installation of the exhaust vent and combustion air intake connection to the top of the furnace Access is gained by removal of two screws in the upper right and left of the furnace The top front access panel is then removed by pulling forward Once the vent connections are made the top front access panel is replace Be sure the access panel fits the around the two grommets that secure the vent pipes and the rear tab locks below the top rear panel For Energy Star models adhesive backed aluminum tape has been provided to seal the access panel to the furnace top to mak
5. Figure 7 Proper Direct Vent Terminations RH amp LH views and Vent Termination Only w o Outside Combustion Air Intake RH view NOTICE If exterior sidewall building materials are subject to degradation from contact with flue gases or moisture a minimum 24 inch diameter shield shall be fabricated from stainless steel or UV resistant plastic sheet The protective shield shall be installed around the vent pipe on the outside wall Exhaust Vent Termination Elbow The exhaust vent termination elbow shall be installed in accordance with these instructions and any applicable local codes Refer to Figures 7 and 8 for typical examples of proper terminations a The exhaust vent termination must be installed in the same atmospheric pressure zone i e on the same wall as the air intake termination 24 All installations and services must be performed by qualified service personnel b The bottom edge of the vent termination elbow must be installed at least 12 inches above the outlet of intake termination elbow The horizontal distance between the inlet and exhaust terminations should be minimized when possible and should never exceed 24 inches The vent and intake systems should utilize the same numbers of elbows and approximately the same length of straight pipe to reach the outside termination 9 MEDIUM lt 259 NOTE THE HORIZONTAL DISTANCE BETWEEN RADIUS THE INLET AND THE OUTLET SHOULD BE KEPT TO
6. 3 The cross sectional area of the return system leading into the closet when located in the floor or ceiling shall not be less than 250 square inches 4 The total free area of openings in the floor or ceiling registers serving the Ne emo ae re return duct system must be at least 350 square inches At least one register must be located where it is not likely to be covered by carpeting boxes furniture or other objects 5 Materials located in the return duct system must have a flame spread classification of 200 or less 6 Non combustible pans having one inch upturned flanges are to be located beneath openings in a floor return duct system 7 Wiring materials located in the return duct system must conform to articles 300 22 of the National Electrical Code NFPA70 Latest Edition 18 All installations and services must be performed by qualified service personnel 8 Gas piping is not to be located in or through the return duct system E FUEL PIPING Sizing and installation of fuel lines must be in accordance with Federal State amp Local regulations Including the National Fuel Gas Code NFPA 54 ANSI Z233 1 Latest Edition NOTE These furnaces are designed to be gas piped through the left side or the bottom For service purposes it is recommended that the gas union be located inside the furnace when possible AWARNING Because of the potential of odorant fade a
7. ANY DEFICIENCIES NOTED MUST BE CORRECTED AT ONCE BY A QUALIFIED HEATING CONTRACTOR DO NOT ATTEMPT TO MAKE REPAIRS YOURSELF FOR ASSISTANCE OR ADDITIONAL INFORMATION CONSULT A QUALIFIED INSTALLER SERVICE AGENCY OR THE GAS SUPPLIER FOR YOUR SAFETY WHAT TO DO IF YOU SMELL GAS DO NOT TRY TO LIGHT ANY APPLIANCE DO NOT TOUCH ANY ELECTRICAL SWITCH DO NOT USE ANY PHONE IN YOUR BUILDING IMMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR S PHONE FOLLOW THE GAS SUPPLIER S INSTRUCTIONS IF YOU CANNOT REACH YOUR GAS SUPPLIER CALL THE FIRE DEPARTMENT FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE THIS UNIT MUST BE INSTALLED AND SERVICED BY A QUALIFIED CONTRACTOR ONLY OPERATING INSTRUCTIONS ARE LOCATED INSIDE APPLIANCE NEAR BURNER ASSEMBLY AVERTISSEMENT LES PI CES MOBILES PEUVENT BLESSER GRAVEMENT DES PERSONNES ARR TER LA CHAUDI RE AVANT D ENLEVER CE PANNEAU MAINTENANCE DES FILTRES QUAND IL LE FAUT RETIRER LES FILTRES ENCRASS S DE LEURS BO TIERS LES LAVER OU LES REMPLACER PAR DES FILTRES NEUFS IDENTIQUES This compartment must be closed except when REINSTALL ALL PARTS F Should this unit be disassembled all components panels block offs collars gaskets and fasteners must be reassembled as originally factory produced Failure to do so may result in
8. CONNECTOR DUCT CONNECTION BASE BOTTOM PANEL TEMPLATE IOP VIEW Figure 2 PR I0 BASE ae T FLOOR X E FLOOR JOIST lt DISTRIBUTION DUCT Figure 3 REAR WALL OF CLOSET OR ALCOVE VENT INTAKE a yr gt Ne Iu T UNIT TOP VIE TOP VIEW ES V DUCT DISTRUBUTION ACHING gt NECTOR TO BASE 2 TT I II i H 70 BASE lt DISTRIBUTION DUCT gt CONNECTOR DUCT gt Ns All installations and services must be performed by qualified service personnel After cutting openings in the floor place the bottom panel in position Mark the square opening location on the distribution duct at the connection point of the connector duct Remove the bottom panel Cut an opening in the distribution duct slightly larger than the connector duct refer to Figure 2 for location of this cut Cut the connector duct to length Install the connector duct Bend over each tab Insure an airtight seal by using high temperature sealant or tape on the joint Reinstall the bottom panel over the connector duct Put the base top assembly in place see Figure 3 Slit the corners of connector duct down to the top of the base assembly If metal projects more than 1 inch above the top of the base assembly trim the f
9. COOLING UNIT HTG Speed Recommended CLG Speed 24 000 LOW MED LOW 30 000 LOW MED HIGH 36 000 LOW HIGH Speed Tap Furnace Airflow CFM vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 836 805 773 743 695 620 566 ML 1044 1010 972 914 860 826 752 MH 1250 1196 1146 1101 1038 977 902 High 1339 1338 1283 1233 1162 1086 1008 Speed Tap Temperature Rise vs External Static Pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 53 55 57 59 63 71 78 ML 42 44 45 48 51 53 59 MH 35 37 38 40 42 45 49 High 31 33 34 36 38 41 44 Speed Tap Blower Motor Current Draw Amps vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 3 3 3 2 3 1 3 0 2 9 2 7 2 6 ML 4 0 3 8 3 6 3 5 3 4 3 2 3 1 MH 4 6 4 4 4 2 4 1 4 0 3 8 3 6 High 5 3 5 1 5 0 4 9 4 7 4 6 4 4 Speed Tap Blower Motor Watts vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 315 311 304 300 292 281 275 ML 400 390 376 363 351 342 330 MH 485 467 452 441 427 412 394 High 573 555 544 530 513 493 477 Recommended operation range 36 All installations and services must be performed by qualified service personnel CMC1 75D36 ALTERATIONS REQ D FOR A C DESIGN EXTE
10. F 65 F SEASONAL EFFICIENCY AFUE ANNUAL FUEL UTILIZATION EFFICIENCY DIMENSIONS CABINET SIZE SUPPLY AIR OUTLET ELECTRICAL SUPPLY 95 WIDTH 18 3 4 DEPTH 25 3 4 HEIGHT 76 1 8 WIDTH 12 DEPTH 12 115 VOLTS 60HZ 1 PH FUSE OR HACR BREAKER 15 AMPS TOTAL CURRENT AMPS 7 15 AMPS NOMINAL ANTICIPATOR SETTING 0 8 MILLIAMPS FILTER SIZE APPROXIMATE SHIPPING WEIGHT BLOWER DATA BLOWER MODEL MOTOR HORSEPOWER 1 18 X 24 X 1 195 LBS 205 LBS 12 9T DIRECT DRIVE 1 2 PSC MOTOR RPM 1065 HIGH SPEED Q 2 amp 5IN W C SPEED 2 5 a 5 LOW 805 695 797 668 MD LOW 1010 860 995 869 MD HIGH 1196 1038 1210 1076 HIGH 1338 1162 1420 1259 FOR BURNER COMBUSTION INFORMATION REFER TO INITIAL STARTUP All installations and services must be performed by qualified service personnel MODEL CMC1 50DV3 CMC1 75DV3 INPUT IN BTUH 50 000 75 000 OUTPUT IN BTUH 48 000 72 000 MAIN ORIFICE NAT 42 MAIN ORIFICE LP 54 GAS SUPPLY PRESSURE L P MINIMUM 11 IN W C NAT MINIMUM 4 5 IN W C L P MAXIMUM 14 IN W C NAT MAXIMUM 14 IN W C GAS MANIFOLD PRESSURE L P 10 0 03 IN W C NAT 3 5 03 IN W C INTAKE SIZE IN INCHES 2 VENT SIZE IN INCHES 2 NOMINAL TEMPERATURE RISE 55 F 65 F SEASONAL EFFICIENCY AFUE ANNUAL FUEL UTILIZATION EFFICIENCY DIMENSIONS CABINET SIZE SUPPLY AIR OUTLET ELECTRICAL SUPPLY 95 WIDTH 18 3 4 DEPTH 25 3 4 HEIGHT 76
11. te de sortie de l vacuateur au en PVC et tous les joints du syst me de ventilation pour liminer les fuites aux raccords 39056 NOTE DO T ADD TO THE F 3URNER INLET RING CONNEC REFER TO INSTALLATION INSTRUCTIONS 00 204 390555 Allinstallations and services must be performed by qualified service personnel This and the previous page contain reproductions of the various safety and instruction labels placed on the Thermo Pride Condensing Gas Furnaces Please read and comply with the contents of these labels d FOR YOUR SAFETY READ BEFORE OPERATING I lll LIRE POUR VOTRE S CURIT AVANT DE D MARRER LA CHAUDI RE DE WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life ATTENTION Si vous ne respectez pas exactement les instructions ci dessous un incendie ou une explosion pourraient endommager la propri t blesser ou tuer des personnes A This appliance does not have a pilot It is equipped with a hot surface igniter that automatically lights the burner Do not try to light the burner by hand B BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to the base of unit because some gas is heavier than air and will settle on the floor or ground WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do
12. 1 8 WIDTH 12 DEPTH 12 115 VOLTS 60HZ 1 PH FUSE OR HACR BREAKER 15 AMPS TOTAL CURRENT AMPS 7 15 AMPS NOMINAL ANTICIPATOR SETTING 0 8 MILLIAMPS FILTER SIZE APPROXIMATE SHIPPING WEIGHT BLOWER DATA BLOWER MODEL MOTOR HORSEPOWER 1 18 X 24 X 1 195 LBS 205 LBS 12 9T DIRECT DRIVE 1 2 ECM MOTOR RPM 1075 HIGH SPEED 2 amp 5IN W C SPEED 2 5 2 5 LOW 639 437 935 802 MD LOW 834 653 998 880 MED 948 811 1113 1007 MD HIGH 1145 1026 1177 1083 HIGH 1365 1265 1272 1177 FOR BURNER COMBUSTION INFORMATION REFER TO INITIAL STARTUP All installations and services must be performed by qualified service personnel INSTALLATION PARTS PACKAGES PARTS PKG CMA3 50D36N CMA3 75D36N DESCRIPTION 50054248 50054249 PART QTY PART QTY J box cover 350020 1 350020 1 Wire nut 300132 2 300132 2 3 stainless steel hose clamp 300276 4 300276 4 2 3 8 radiator hose 410017 2 410017 2 CPVC adapter 320833 1 320833 1 LP conversion kit AOPS7741 1 57742 1 PARTS PKG CMC1 50D36N CMC1 75D36N DESCRIPTION 50054190 50054191 PART QTY PART QTY J box cover 350020 1 350020 1 Wire nut 300132 2 300132 2 3 stainless steel hose clamp 300276 4 300276 4 2 3 8 radiator hose 410017 2 410017 2 CPVC adapter 320833 1 320833 1 LP conversion kit AOPS7741 1 57742 1 Gasket drain knock out 330355 1 33035
13. 8 threaded pipe plug located on the gas manifold Use a U tube manometer or recently calibrated pressure gage to measure the pressure To adjust the pressure remove the screw cap from the regulator on the gas valve and using the adjustment screw Decrease the pressure by turning the screw counterclockwise or increase it by turning the screw clockwise ANCAUTION ADJUSTMENTS TO THE LISTED PRESSURE MUST NOT EXCEED 0 3 WC A 0 3 WC adjustment will increase or decrease the input approximately 4 0 Replace screw cap when adjustment is complete The correct input can be assumed if the furnace manifold pressure is the same as that shown on the rating label if a gas meter is not available for natural gas or the unit is installed on an unmetered propane gas supply Shut off the gas supply to the furnace Remove the pressure gage and re install the pipe plug using a thread compound resistant to the action of LP gases If the rated input cannot be obtained with the present orifice at the correct pressure your local gas supplier may assist in sizing the proper orifice Thermo Products Engineering Department will gladly assist in sizing the orifice if you provide them with the heating value in BTU per cubic foot and the specific gravity of the fuel gas D BURNER ADJUSTMENT This unit is designed to not require any burner adjustment The flames should be checked by looking through the sight glass located on the burner box Burner flames should
14. A MINIMUM TO PREVENT RECIRCULATION INCH MIN FROM THE BOTTOM OF FLUE OUTLET TO THE AIR INLET ITSELF Hio Hd 12 INCH MIN HORIZONTAL SIDEWALL VENTING TERMINATION Figure 8 Typical Relative Locations of Direct Vent Terminations When Sidewall Venting 3 Exhaust Vent Terminal Location Clearance Requirements a The vent terminal shall be located at least 3 feet above any forced air b inlet located within 10 feet Refer to Figure 9 for a depiction of the minimum required clearances between vent terminations and building features according to the National Fuel Gas Code NFGC The vent terminal shall be at least 12 inches below 12 inches horizontally from or 12 inches above any door window or gravity air inlet into a building The bottom of the vent terminal shall be located at least 12 inches above grade c The vent terminal shall not be located e over public walkways or over an area where wetting of surfaces by condensate or water vapor could create a nuisance or hazard e near soffit vents crawl space vents or other areas where condensate or water vapor could create a nuisance hazard or cause property damage and 25 All in stallations and services must be performed by qualified service personnel e where wetting of components by condensate or water vapor could be detrimental to the operation of pressure regulators relief valves or any other equipment d The vent terminal shal
15. BELOW THERMOSTAT TEMPERATURE Ed SROVE 2 2 SETTING ABOVE 90 DEGREES F E Yes Yes COOL THE THERMOSTAT IS THE TRANSFORMER No SUPPLYING 24 VOLTS gt TO THE THERMOSTAT ARE WIRES CONNECTED N CeCe PROPERLY Yes Yes CHECK INPUT REPLACE IS INTERNAL DAMAGE POWER DOOR THERMOSTAT PRESENT ON THE INTERLOCK TRANSFORMER SERVICE SWITCH AND FUSES Y Yes REPLACE TRANSFORMER IS THE INDUCER IS THERE 24 VOLTS CORTE BLOWER OPERATING ACROSS TH amp TR amp PROPER AT THE INTEGRATED CONTROL MODEL CONNECTIONS 53 All installations and services must be performed by qualified service personnel Yes Yes IS THERE LINE VOLTAGE CHECK THE INTEGRATED ACROSS INDUCER POWER CONTROL DIAGNOSTIC LED TERMINALS IND amp IND N LAMP RESET BY INTERRUPTING AT THE INTEGRATED CONTROL POWER TO CONTROL FOR MORE THAN ONE SECOND IF LED STAYS ON CONTINUOUSLY REPLACE INTEGRATED CONTROL CHECK WIRING TO INDUCER AND IF OK REPLACE INDUCER ASSEMBLY DOES THE HOT CHECK THE INTEGRATED CONTROL SURFACE No JS THERE VOLTAGE PRESENT No DIAGNOSTIC LED LAMP RESET BY AT THE HOT SURFACE IGNITOR ENERGIZE IGNITOR TERMINALS INTERRUPTING POWER TO CONTROL AND GLOW FOR MORE THAN ONE SECOND IF ee MEN LED STAYS ON CONTINUOUSLY REPLACE INTEGRATED CONTROL CHECK WIRING TO HOT SURFACE IGNITOR AND IF OK REPLACE HOT SURFACE IGNITOR ASSEMBLY CHECK ACROSS MV TERMINALS ON INTEGRATED CONTROL FOR 24 VOL
16. Distanc walk or paved driv on public property 7 feet Distance eranda p or balcany 24 inches n accordance with the current edition of the National Fuel Gas Code ANSI Z223 1 NFPA 54 n non direct vent applications i e sidewall venting only the required clearance is 4 feet below or to the side of the opening 1 foot above opening the requirements of the gas supplier and the manufacturer s Clearance in dance with local installation cc installation instruct the requirements of sidewall venting only t Figure 9 NFGC Minimum Clearances Between the Vent Terminal and Various Building Features 26 All installations and services must be performed by qualified service personnel 4 Vent Terminal Location Guidelines NCAUTION Bushes shrubs or any vegetation that may restrict the flow of flue products must be kept away from vent and air intake terminations Terminations must also be kept clear of any leaves weeds combustible materials snow and ice build up Avoid locating the vent terminal over areas where dripping of condensate or small pools of acidic condensate could create a problem In addition to following any local code requirements when possible utilize the guidelines below in locating the vent terminal to help insure trouble free operation of a sidewall vented furnace e Avoid locating the vent terminal on a wall facing prevailing winds and wide open are
17. FUEL TYPE BTUH INPUT DRILL SIZE MIN MAX PRESSURE IN NAT 42 4 5 14 0 3 5 INCHES W C L P 54 11 0 14 0 10 0 INCHES W C APPLIANCE IS SHIPPED FROM FACTORY WITH 42 ORIFICES FOR NATURAL GAS FOR L P GAS CONVERSION REFER TO INSTRUCTION MANUAL PROVIDED WITH THIS APPLIANCE INSTALLATION APPLIANCE MAY BE INSTALLED IN CLOSET OR ALCOVE WITH MINIMUM CLEARANCES TO ADJACENT COMBUSTIBLE CONSTRUCTION OF NOT LESS THAN 6 INCHES AT FRONT OF CLOSET 18 INCHES AT FRONT OF ALCOVE INCH AT BACK INCH AT SIDES INCH FROM FLUE PIPE INCH FROM TOP OF APPLIANCE TO CEILING 1 INCH FROM PLENUM SIDES AND WARM AIR DUCT WITHIN 3 FEET OF APPLIANCE FOR CLOSET INSTALLATION A 250 SQ IN RETURN AIR OPENING MUST BE PROVIDED IN THE CLOSET DOOR SEE INSTRUCTION MANUAL FOR LOCATION DETAILS THIS TYPE FSP APPLIANCE MAY BE INSTALLED WITH A THERMO PRODUCTS LLC MODEL 70 BASE ASSEMBLY SEE INSTRUCTION MANUAL FOR DETAILS ON INSTALLATION OF BASE THIS FURNACE REQUIRES A SPECIAL VENTING SYSTEM REFER TO INSTALLATION INSTRUCTIONS NO MG 517 FOR PARTS LIST AND METHOD OF INSTALLATION THERMO PR ODUCT 46366 MAXIMUM VENT LENGTH 30 FT MINIMUM VENT LENGTH 8 FT THIS FURNACE MUST BE INSTALLED IN ACCORDANCE WITH THERMO PRODUCTS INSTRUCTIONS AND LOCAL CODES IN THE ABSENCE OF LOCAL CODES CONFORM TO THE FOLLOWING CODES AS APPLICABLE NATIONAL FUEL GAS CODE ANSI 2223 1 MANUFACTURED HOME CONSTRUCTION AND SAFETY STANDARD TITLE 24 CFR PART 328
18. ITEM IPTION UNIT UNIT 2 HEAT EXCHANGER FILTER 3 SIDE CASING LEFT SPACER NYLON 3 8 ODx 1 2 L SIDE CASING RIGHT NDUCER TOP FRONT NDUCER GASKET TOP REAR GNITER REAR LAME SENSOR OFF COIL CA 8 BAFFLE AIR SIDE Al 9 VER PAN VEN 0 BAFFLE AIR SIDE LEFT OMBUSTION AIR INTAKE ASS Y RADIATOR HOSE 2 HOSE CLAMP 3 WINDO DRAIN FITTING TRAP VENT INTAKE PIPE 2 PVC 5 LIMIT SWITCH BLO SSEMBLY VESTIBULE WIRE HARNESS 6A BLOWER HOUSING SUPPLY WIRE HARNESS MOTOR BRACKET ASSEMBLY WIRE HARNESS 6 MOTOR 3 TCH D CAPACITOR BOOT J BOX CAPACITOR TRAP MTG BRACKET AUX LIMIT TUBING ASSEMBLY INTEGRATED FAN CONTROL FITTING NYLON INSERT TRANSFORMER PARTS PAC AGE BLOV J BOX COVE RADIATOR HOSE 7A TUBE HOSE CLAMP 7B FOLD CPVC X PVC ADAPTER ORIFICE LP CONVERSION KIT 0 GROMMET SEMBLY BURNER BOX 184 LIMIT SWITCH ROLL OUT 8B SIGHT GL GASKET 18C SIGHT CLASS 18D SILICONE SPONGE C SILICONE SPONGE All install
19. and its individual gas shutoff valve must be disconnected from the gas supply during pressure testing of the gas supply system at pressures in excess of 1 2 PSIG or 14 0 w c The furnace must be isolated from the gas supply by closing its manual shut off valve at test pressures equal to or greater than 1 2 PSIG or 14 0 w c All installations and services must be performed by qualified service personnel AWARNING Copper and brass tubing and fittings except tin lined shall not be used if the gas contains more than a trace 0 3 grains per 100 cubic ft of hydrogen sulfide gas Check with your gas supplier AWARNING TURN OFF THE ELECTRICAL POWER to the furnace before attempting to change blower speed wiring AWARNING Turn off power to furnace before it is placed into service The gas piping system must have been leak tested by a qualified heating contractor in accordance with State Local and National Codes including the National Fuel Gas Code NFPA 54 ANSI Z233 1 Latest Edition AWARNING It may be necessary to purge the air out of the gas line for initial start up of the furnace after installation This should be done by a qualified heating contractor If excessive gas escapes when purging the gas supply at the union allow the area to ventilate for at least 15 minutes before attempting to start the furnace LP gas is especially dangerous because the specific gravity of LP gas allows it to accumulate at floor level at a dangerous conce
20. appelez les pompiers C Manipulez l interrupteur de commande de gaz seulement la main N utilisez jamais des outils pour cela Si vous ne pouvez pas manipuler cet interrupteur manuellement n essayez pas de le r parer appelez un technicien de service qualifi Forcer l interrupteur ou tenter de le r parer pourraient provoquer un incendie ou une explosion D N utilisez pas la chaudi re si l une de ses pi ces a t sous de l eau Appelez imm diatement un technicien de service qualifi pour qu il inspecte la chaudi re et remplace toute pi ce du syst me de commande et tout interrupteur de commande de gaz qui ont t sous de l eau WWW OPERATING INSTRUCTIONS 1 STOP Read the safety information above on this label 2 Set the thermostat to the lowest setting 3 Turn off all electric power to the appliance 4 This appliance is equipped with a hot surface igniter that automatically lights the burner Do not try to light the burner by hand 5 Move the gas control switch to the OFF position 6 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor or ground If you smell gas STOP Follow in the safety information above on this label If you don t smell gas go to the next step 7 Move the gas control switch to the ON position Turn on all electric power to the appliance 9 Set thermostat to desired setting and if equipped set the operating mode to HEAT 10 If
21. be clear blue and almost transparent in color see Figure 16 NOTE It is not unusual to have orangish flames visible in the tube for LP gas 45 All installations and services must be performed by qualified service personnel BURNER SO P BLUE Figure 16 A CAUTION The CMA CMC furnace models are direct vent design and do not require an air shutter adjustment air shutters are not used for proper flame characteristics Burner box access cover must always be secured with all screws in place and tightened before operating furnace E SETTING TEMPERATURE RISE All CMA CMC Models are designed and wired at the factory for a heating blower speed that should result in an approximate temperature rise of 55 F for CM 50 s and 65 F for CM 75 s The blower motors are wired on med low speed for heating mode The temperature rise through the furnace may vary depending on the duct system elevation heating value etc for each installation A lower temperature rise will result in a higher efficiency Temperature rise supply air temperature return air temperature After 10 to 15 minutes of continuous operation the temperature rise through the furnace must fall within a range of 40 F to 70 F for CM 50 s and 50 F to 80 F for CM 75 s If the outlet or supply duct temperature is too high you should check to make sure that your return air filter is clean your return air openings are free from obstruction your ou
22. by qualified service personnel CMC1 75DV3 ALTERATIONS REQ D FOR A C DESIGN EXTERNAL STATIC PRESSURE COOLING UNIT HTG Speed Recommended CLG Speed 24 000 MED LOW MED LOW 30 000 MED LOW MED HIGH 36 000 MED LOW HIGH Speed Tap Furnace Airflow CFM vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 970 935 898 846 802 765 710 ML 1043 998 968 928 880 830 785 MED 1148 1113 1080 1051 1007 968 929 MH 1212 1177 1142 1119 1083 1047 1023 High 1300 1272 1229 1211 1177 1144 1117 Speed Tap Temperature Rise vs External Static Pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 75 78 81 86 91 96 103 ML 70 73 76 79 83 88 93 MED 64 66 68 70 73 76 79 MH 60 62 64 65 67 70 71 High 56 57 59 60 62 64 65 Speed Tap Blower Motor Current Draw Amps vs External Static pressure in WC e 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 2 4 2 5 2 5 2 6 2 6 2 7 2 7 ML 2 8 2 9 3 0 3 0 3 1 3 1 3 2 MED 3 6 3 7 3 7 3 8 3 8 3 9 3 9 MH 4 2 4 2 4 3 4 3 4 4 4 5 4 5 High 4 8 4 9 5 0 5 0 5 1 5 2 5 2 Speed Tap Blower Motor Watts vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 187 190 195 200 204 206 211 ML 225 229 233 238 244 248 252 MED 290 295 299 303 310 315 320 MH 341 347 353 356 364 369 371 High
23. grounded in accordance with the provisions of the National Electrical Code ANSI NFPA 70 1999 or latest edition and all local codes having jurisdiction Connection Of Power Supply Wires a Remove the cover from junction box b Insert 115 VAC wires through the strain relief bushing or conduit connection as applicable on the left side of the furnace junction box Connect the hot wire to the black wire d Connect the neutral wire to the white wire e Connect the ground wire to the green wire f Reinstall and secure the junction box cover with the original mounting screws NOTICE The hot surface igniter and operation of this furnace depends on correct polarity The hot leg of the supply circuit must be connected to the black line lead L1 and the common leg L2 to the white line lead in the field mounted junction box The hot leg must pass through the disconnect switch in all cases to prevent the hazard of electrical shock when servicing IMPORTANT The furnace must be grounded in accordance with local codes and with the National Electrical Code ANSI NFPA NO 70 Latest Edition when an external electrical source is utilized Connection Of Room Thermostat Wires NOTE Class 1 thermostat wire must be used inside the furnace burner compartment a Insert 24 VAC wires through the plastic grommet on the left side of the furnace casing b Connect the thermostat wires to the W R 50A65 143 control refer to
24. not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department C Use only your hand to move the gas control switch Never use tools If the switch will not move by hand don t try to repair it call a qualified service technician Force or attempted repair may result in a fire or explosion D Do not use this appliance if any part has been underwater Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been underwater A Cet appareil n a pas de veilleuse II comporte une surface d allumage chaude qui allume automatiquement le br leur N essayez pas d allumer le br leur manuellement B AVANT DE D MARRER la chaudi re humez l air autour de l appareil pour d tecter une ventuelle odeur de gaz Humez aussi l air pr s de la base de la chaudi re puisque le gaz tant plus lourd que l air il pourrait s accumuler pr s du sol ou du plancher QUOI FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ e N allumez aucun appareil Ne touchez aucun interrupteur lectrique n utilisez aucun t l phone dans l immeuble Appelez imm diatement votre fournisseur de gaz partir du t l phone d un voisin Suivez ses instructions Si vous ne pouvez pas joindre votre fournisseur de gaz
25. 0 VENT AIR ELBOWS INTAKE MEDIUM Pd 7 P i 12 IN MIN KS J RADUS AY P Ie we P N UNS VENT 22 L EEK Ge MIN 12 IN ABOVE HIGHEST S N AN PREVAILING ANTICIPATED SNOW LEVEL lt A WINDS 7 p INTAKE 22 gos c pe N 3 IN MN lt x gt 24 IN d VERTICAL VENT TERMINATION Figure 11 VENT AIR INTAKE gt FLASHING PLATE 7 SLOPE ADAPTER PREVAILING WINDS Figure 12 When the PVC vent and combustion air intake pipes pass through a ceiling and a fire stop is required Refer to the following 29 All installations and services must be performed by qualified service personnel CEILING Frame out area around where PVC pipe is to penetrate ceiling Cut a 2 3 8 diameter hole for 2 PVC in the ceiling and a corresponding hole in a firestop to be made of a minimum of 18 gauge galvanized metal large enough to cover the entire framed area Cut PVC pipe so that it extends up past the fire stop far enough to engage a PVC coupling that will rest on the fire stop and act as a support Seal between the pipe coupling and fire stop with high temperature RTV silicone sealant see Figure 13 Continue installing PVC pipe to exhaust vent and combustion air intake termination as described previously VENTING THROUGH CEILING SEAL BETWEEN COUPLING AND METAL PANEL FLUE PIPE WITH HI TEMP RTV SILICONE s SEALANT yaaa P 2 C
26. 0 MANUFACTURED HOME INSTALLATION ANSI NCSBCS A225 1 THICKNESS OF THE WALL CONSTRUCTION THROUGH WHICH THE VENT AIR INTAKE PIPES MAY BE INSTALLED MINIMUM 1 2 MAXIMUM 18 PERFORMANCE THIS APPLIANCE IS A CATEGORY I DIRECT VENT FORCED AIR FURNACE FOR MOBILE HOME OR TRAVEL TRAILER INSTALLATION TESTED AT 0 3 INCHES OF WATER STATIC PRESSURE DESIGNED MAXIMUM OUTLET AIR TEMPERATURE 200 F OR LESS WITH A NOMINAL TEMPERATURE RISE OF 55 F CONFORMS TO ANSI Z21 47b CSA 2 3b 2008 CENTRAL FURNACE ELECTRICAL RATING 115 VOLTS 60 HERTZ 1 PHASE MAXIMUM CURRENT AMPS 7 15 WARNING RISK OF FIRE OR ELECTRIC SHOCK ONLY CERTIFIED OR MANUFACTURER QUALIFIED SERVICE PERSONNEL SHALL BE USED TO INSTALL AND PROVIDE MAINTENANCE OF THIS APPLIANCE 396525 ie soon wA Yoo oF 5295 wA S EL AHD CERTIFIED us C directory org 3018528 won so s J DATE OF MANUFACTURE 14 JAN 2014 FOR INSTALLATION IN MANUFACTURED HOME FOR INSTALLATION AS CENTRAL FURNACE SPECIAL TYPE FOR SINGLE STORY DWELLING ORIFICE LINE PRESSURE IN W C MANIFOLD FUEL TYPE BTUM INPUT DRILL SIZE MIN MAX PRESSURE IN W C NAT 42 4 5 14 0 3 5 INCHES W C L P 54 11 0 14 0 10 0 INCHES W C APPLIANCE IS SHIPPED FROM FACTORY WITH 42 ORIFICES FOR NATURAL GAS FOR L P GAS CONVERSION REFER TO INSTRUCTION MANUAL PROVIDED WITH THIS APPLIANCE INSTALLATION APPLIANCE MAY BE INSTALLED IN CLOSET OR ALCOVE WITH MINIMUM CLEARANCES TO ADJACENT COMBUSTI
27. 408 414 423 428 435 441 445 Recommended operation range 39 All installations and services must be performed by qualified service personnel AWARNING TURN OFF THE ELECTRICAL POWER to the furnace before attempting to change blower speed wiring The furnace is factory wired to the ignition control with standard heating and cooling speeds When changing motor speeds simply switch the needed speed to either the heating or cooling terminal as applicable on the module to obtain the desired CFM The unused speeds should then be reconnected to the module in the park positions Refer to figure 15 Refer to section II for blower speed and air flow performance for installation 5 FIELD WIRING AND REPLACING WIRING Field wiring between the furnace and devices not attached to the furnace shall conform with the temperature limitation for Type T 35 C wire If any of the original factory supplied furnace wiring is replaced or a separate device other than the thermostat is wired internal to the unit 105 C thermoplastic or equivalent wire must be used 40 All installations and services must be performed by qualified service personnel V STARTING THE UNIT A SEQUENCE OF OPERATIONS AT ANYTIME THE CONTINUOUS SAFE OPERATION CHECK GAS VALVE IS IF FLAME SIMULATION CONDITION NOT ENERGIZED PRESENT OR ROLL OUT SWITCH OPENS SYSTEM ENERGIZES INDUCER FAN FOR 15 SECONDS AND CIRCULATOR BLOWER A
28. 5 1 Grommet vinyl 3 8 350040 1 350040 1 Grommet vinyl 7 8 350009 1 350009 1 Screw 8 x 1 2 Tek 300208 6 300208 6 Coil trim panel 619113 1 619113 1 Bushing UB 875 350750 1 350750 1 Bushing SR 34 2 350016 1 350016 1 CMC1 50DV3N CMC1 75DV3N en 50094244 50094245 QTY PART J box cover 350020 1 350020 1 Wire nut 300132 2 300132 2 3 stainless steel hose clamp 300276 4 300276 4 2 3 8 radiator hose 410017 2 410017 2 CPVC adapter 320833 1 320833 1 LP conversion kit AOPS7741 1 57742 1 Gasket drain knock out 330355 1 330355 1 Grommet vinyl 3 8 350040 1 350040 1 Grommet vinyl 7 8 350009 1 350009 1 Screw 8 x 1 2 Tek 300208 6 300208 6 Coil trim panel 619113 1 619113 1 Tape aluminum 2 390111 42 390111 42 Bushing UB 875 350750 1 350750 1 Bushing SR 34 2 350016 1 350016 1 10 All installations and services must be performed by qualified service personnel II GENERAL INSTRUCTIONS AND CLEARANCES READ BEFORE START OF INSTALLATION 1 The BTU output capacity of the furnace proposed for installation should be based on a heat loss calculation made according to the manuals provided by the Air Conditioning Contractors of America ACCA or the American Society of Heating Refrigeration and Air Conditioning Engineers Inc ASHRAE 2 This furnace is equipped with orifices sized for operation with natural gas For conversio
29. BLE CONSTRUCTION OF NOT LESS THAN 6 INCHES AT FRONT OF CLOSET 18 INCHES AT FRONT OF ALCOVE O INCH AT BACK O INCH AT SIDES O INCH FROM FLUE PIPE O INCH FROM TOP OF APPLIANCE TO CEILING 1 INCH FROM PLENUM SIDES AND WARM AIR DUCT WITHIN 3 FEET OF APPLIANCE FOR CLOSET INSTALLATION 250 SQ IN RETURN AIR OPENING MUST BE PROVIDED IN THE CLOSET DOOR SEE INSTRUCTION MANUAL FOR LOCATION DETAILS THIS FURNACE REQUIRES A SPECIAL VENTING SYSTEM REFER TO INSTALLATION INSTRUCTIONS NO MG 517 FOR PARTS LIST AND METHOD OF INSTALLATION 29012510 0 5148 1012 01 3298 MA THERES PRODUCTS JOBSON rw 46366 MAXIMUM VENT LENGTH 30 FT MINIMUM VENT LENGTH 8 FT THIS FURNACE MUST BE INSTALLED IN ACCORDANCE WITH THERMO PRODUCTS INSTRUCTIONS AND LOCAL CODES IN THE ABSENCE OF LOCAL CODES CONFORM TO THE FOLLOWING CODES AS APPLICABLE NATIONAL FUEL GAS CODE ANSI 2223 1 MANUFACTURED HOME CONSTRUCTION AND SAFETY STANDARD TITLE 24 CFR PART 3280 MANUFACTURED HOME INSTALLATION ANSI NCSBCS A225 1 THICKNESS OF THE WALL CONSTRUCTION THROUGH WHICH THE VENT AIR INTAKE PIPES MAY BE INSTALLED MINIMUM 1 2 MAXIMUM 18 PERFORMANCE THIS APPLIANCE IS A CATEGORY I DIRECT VENT FORCED AIR FURNACE FOR MOBILE HOME OR TRAVEL TRAILER INSTALLATION TESTED AT 0 3 INCHES OF WATER STATIC PRESSURE DESIGNED MAXIMUM OUTLET AIR TEMPERATURE 200 F OR LESS WITH A NOMINAL TEMPERATURE RISE OF 55 F CONFORMS TO ANSI Z21 47b CSA 2 3b 2008 CENTRAL FURNACE ELECTRICA
30. EL AGREE ET LE PERSONNEL DE SERVICE QUALIFI DU FABRICANT PEUVENT INSTALLER ET ENTRETENIR CET APPAREIL i 390560 j NATURALIPROPANE GAS CONVERSION INSTRUCTIONS An alternate main burner orifice and a gas valve pressure regulator conversion kit are supplied with this furnace 1 Shut off electric power at the furnace and close the manual gas shutoff valve serving the furnace 2 Disconnect the gas supply pipe from the gas control valve Disconnect the wires and 1 4 tubing if provided from the gas control valve 3 Remove the manifold and gas valve assembly from the furnace 4 Carefully remove and replace all the orifices in the manifold with those supplied in the conversion kit 5 Remove the cap screw from gas valve pressure regulator Turn the plastic regulator screw counter clockwise to remove it 6 Remove the regulator spring and replace it with the spring found in the pressure regulator conversion kit Replace plastic regulator screw and turn the screw clockwise about 6 complete turns Refer to any instructions supplied in the kit 7 Reassemble gas valve and manifold assembly to the furnace Reconnect the gas piping wiring and 1 4 tubing if provided to the gas control valve 8 Open the manual gas shutoff valve and turn on the electrical power 9 Check for gas leaks before placing furnace back in operation 10 During burner operation turn the regulator screw located beneath the gas valve pressure reg
31. GHT CHECK ALL THERMOSTAT IS SATISFIED ON INTEGRATED m WIRING FOR CONTROL FLASHING LOOSE CONNECTIONS Yes Yes DOES BURNER SHUT OFF No CHECK FOR SHORT IN WIRE TO WHEN THERMOSTAT IS gt THERMOSTAT AND CORRECT SATISFIED IF NECESSARY Yes DOES THE CIRCULATING AIR BLOWER TURN OFF AFTER THERMOSTAT IS SATISFIED WITHIN 120 SECONDS Yes Y 56 All installations and services must be performed by qualified service personnel Yes Yes IF LED LIGHT FLASHES 1 FLASH THEN PAUSE SYSTEM LOCKOUT 2 FLASHES THEN PAUSE PRESSURE SWITCH STUCK CLOSED 3 FLASHES THEN PAUSE PRESSURE SWITCH STUCK OPEN 4 FLASHES THEN PAUSE OPEN LIMIT SWITCH OR ROLLOUT SWITCH 6 FLASHES THEN PAUSE 115 VOLT AC POWER REVERSED 7 FLASHES THEN PAUSE LOW FLAME SENSE SIGNAL 8 FLASHES THEN PAUSE CHECK IGNITOR OR IMPROPER GROUNDING CONTINUOUS FLASHING FLAME HAS BEEN SENSED WHEN NO PAUSE NO FLAME SHOULD BE PRESENT NO CALL FOR HEAT CHECK COMPLETE SYSTEM OUT THE LED WILL ALSO FLASH ONCE AT POWER UP LED LIGHT STAYS ON CONTINUOUSLY COMPLETE FAILURE REPLACE INTEGRATED CONTROL TROUBLESHOOTING COMPLETE 57 All installations and services must be performed by qualified service personnel APPENDIX A REPLACEMENT PARTS LU 471 58 All installations and services must be performed by qualified service personnel
32. L RATING 115 VOLTS 60 HERTZ 1 PHASE MAXIMUM CURRENT AMPS 7 15 WARNING RISK OF FIRE OR ELECTRIC SHOCK ONLY CERTIFIED OR MANUFACTURER QUALIFIED SERVICE PERSONNEL SHALL BE USED TO INSTALL AND PROVIDE MAINTENANCE OF THIS APPLIANCE POUR INSTALLATION DANS UNE MAISON PREFABRIQUEE POUR INSTALLATION COMME TYPE SP CIAL DE CHAUDI RE PRESSION DIMENSION CANALISATION PRESSION ENTR E DELA M CHE POUCED EAUW C D ADMISSION DE GAZ BTUH DELORIFICE MIN MAX POUCE D EAU W MOD LE 50 NAT 50 000 42 45 14 0 3 5 POUCES D EAU W SERIE Pal 50 000 54 110 14 0 10 0 POUCES D EAU W MOD LE 75 75 000 42 45 140 3 5 POUCES D EAU W C S RIE P L 75 000 54 110 140 10 0 POUCES D EAU W C LA CHAUDI RE EST LIVR E DE L USINE AVEC DES ORIFICES DE 42 POUR LE GAZ NATUREL POUR LA CONVERSION AU GAZ P L VOIR LE MANUEL D INSTRUCTIONS FOURNI AVEC CETTE CHAUDIERE INSTALLATION LA CHAUDI RE PEUT TRE INSTALL E DANS UN CABINET OU UNE ALCOVE MAIS ELLE DOIT TRE DES DISTANCES MINIMALES DES CONSTRUCTIONS ADJACENTES COMBUSTIBLES D AU MOINS 6 POUCES DE LA FACE AVANT DU CABINET 18 POUCES DE LA FACE AVANT DE L ALCOVE 0 POUCE DE LA FACE ARRI RE 0 POUCE DES FACES LAT RALES 0 POUCE DU TUYAU DU GAZ DE COMBUSTION 0 POUCE DU SOMMET DE LA CHAUDI RE AU PLAFOND 1 POUCE DES C T S DES PL NUMS ET DE LA CONDUITE D AIR CHAUD MOINS DE 3 PIEDS DE LA CHAUDI RE POUR L INSTALLATION DANS UN CABINE
33. MINAL TEMPERATURE RISE SEASONAL EFFICIENCY AFUE ANNUAL FUEL UTILIZATION EFFICIENCY DIMENSIONS CABINET SIZE SUPPLY AIR OUTLET ELECTRICAL SUPPLY FUSE OR HACR BREAKER TOTAL CURRENT AMPS NOMINAL ANTICIPATOR SETTING FILTER SIZE APPROXIMATE SHIPPING WEIGHT BLOWER DATA BLOWER MODEL MOTOR HORSEPOWER MOTOR RPM CFM 2 amp 5IN W C SPEED Low MD LOW MD HIGH HIGH 50036 75036 50 000 75 000 48 000 72 000 42 54 11 IN W C 4 5 IN W C 14 IN W C 14 IN W C 10 0 03 IN W C 3 5 03 IN o o 55 F 65 F 95 WIDTH 18 DEPTH 25 3 4 HEIGHT 57 WIDTH 12 DEPTH 12 115 VOLTS 60HZ 1 PH 15 AMPS 7 15 AMPS 0 8 MILLIAMPS 1 18 X 24 X 1 175 LBS 185 LBS 12 9T DIRECT DRIVE 1 2 PSC 1065 HIGH SPEED 2 S 2 3 805 695 797 668 1010 860 995 869 1196 1038 1210 1076 1338 1162 1420 1259 FOR BURNER COMBUSTION INFORMATION REFER TO INITIAL STARTUP All installations and services must be performed by qualified service personnel MODEL CMC1 50D36 CMC1 75D36 INPUT IN BTUH 50 000 75 000 OUTPUT IN BTUH 48 000 72 000 MAIN ORIFICE NAT 42 MAIN ORIFICE LP 54 GAS SUPPLY PRESSURE L P MINIMUM 11 IN W C NAT MINIMUM 4 5 IN W C L P MAXIMUM 14 IN W C NAT MAXIMUM 14 IN W C GAS MANIFOLD PRESSURE L P 10 0 03 IN W C NAT 3 5 03 IN W C INTAKE SIZE IN INCHES 2 VENT SIZE IN INCHES 2 NOMINAL TEMPERATURE RISE 55
34. MP 4 4 8 BURNER BOX ASSEMBLY ADAPTER 18A LIMIT SWITCH ROLL OUT 49 LP CONVERSION KIT AOPS7742 GASKET DRAIN 18C MMET VINYL 3 8 180 GE GASKET 1 7 24 49H CROMMET VINYL 7 8 18 SILICONE SPONGE GASKET 1 1 6 2 2 COIL TRIM PANEL 19 FILTER RETAINER ROD 1 1480 BUSHING UB 875 20 FILTER 1 1 491 BUSHING SR34 2 350016 61 B WIRING DIAGRAMS APPENDIX All installations and services must be performed by qualified service personnel TWNH3INI NO SNONNILNOO HSvlj ShOnNILNOO 5195713 8 519513 L 53 5 1 9 SIHSYU SIHSVU 529514 51 I SOILSOND NV Iv3H 145 1N3S3Hd 38 GINOHS 3 SY31 1v 40 32 JHL HII NUE 1 v ONIAVH TINALI 391930 38 151 29 1 qasa3 3 G3riadhs SY OL NO OL 10H LOaNNOO N3d0 N OL N 1 10H 103NNOO I 1450 tS
35. NAL HUMIDIFIER ARE DE ENERGIZED THE DELAY TO FAN OFF PERIOD BEGINS 120 SECONDS IF FLAME IS DETECTED THEN LOST THE CONTROL BOARD WILL REPEAT THE INITIAL IGNITION SEQUENCE FOR A TOTAL OF SIX RECYCLES AFTER SIX UNSUCCESSFUL AFTER THE DELAY TO RECYCLE ATTEMPTS THE CONTROL FAN OFF PERIOD ENDS WILL GO INTO SYSTEM LOCKOUT THE CIRCULATING AIR FAN AND OPTIONAL ELECTRONIC AIR CLEANER ARE DE ENERGIZED END IF SYSTEM IS IN LOCKOUT THE OF CYCLE MODULE WILL RESET ITSELF AFTER 60 MINUNTES OR MAY BE MANUALLY RESET BY INTERRUPTING THE POWER TO THE FURNACE AT THE DISCONNECT OR INTERRUPTING THE CALL FOR HEAT AT THE THERMOSTAT IF THIS DOES NOT RESTART THE SYSTEM REFER TO THE TROUBLESHOOTING SECTION OF THIS MANUAL 42 All installations and services must be performed by qualified service personnel B INITIAL START UP This furnace does not have a pilot It is equipped with a hot surface igniter which automatically lights the burner Do not attempt to light the burner by hand Check the following items before the initial start up 1 Check all wiring for loose connections and proper hook up 2 Leak test gas piping connections 3 Check all tubing to the pressure switch and drains to make sure they are connected firmly at all their connection points 4 Check flue pipe combustion air inlet and all pvc connections for tightness and to make sure there is no blockage 5 Make sure air filter is in place 6 Make sure t
36. OUPLING 18 GAUGE GALVANIZED PANEL FIRESTOP x CEILING Figure 13 K CONDENSATE DRAIN LINE AND TRAP ASSEMBLY 1 Figure 14 illustrates the typical drain trap connection for a CMA CMC furnace Trap will be installed at factory Connect condensate drain trap to building drain system 2 An optional condensate neutralizer kit ET P n 320095 is available when gas DRAIN TRAP furnace condensate needs to be ASSEMBLY neutralized pH increased prior to discharge into drain system INSTALLER ih CONNECTION 3 An optional mini condensate pump TO DRAIN TRAP P N 350224 is available This pump will fit into the vestibule of the furnace Instructions will be included with pump if this option is utilized Figure 14 30 All installations and services must be performed by qualified service personnel L ELECTRICAL WIRING All wiring shall be performed by a qualified electrician or service person The wiring must comply with local codes the instructions in this manual and in the absence of codes with the National Electrical Code ANSI NFPA 70 LATEST EDITION 1 2 3 Electrical Branch Supply Circuit Route all electrical wiring to the left side of the furnace The power supply circuit to the furnace must be installed and
37. RETURN AIR FILTER 50 VIII TROUBLE SHOOTING 51 APPENDIX A REPLACEMENT PARTS 58 APPENDIX B WIRING DIAGRAM 62 REFERENCED PUBLICATIONS FOR COPIES CONTACT NATIONAL FUEL GAS CODE NATIONAL FIRE PROTECTION ASSOCIATION NFPA 54 ANSI Z2338 1 1 BATTERYMARCH PARK LATEST EDITION P O BOX 9101 QUINCY MA 02269 9101 All installations and services must be performed by qualified service personnel l SAFETY INFORMATION This and the following page contain reproductions of the various warning and instruction labels placed on the Thermo Pride Condensing Gas Furnaces Please read and comply with the contents of these labels CAUTION MOVING PARTS CAN CAUSE SEVERE PERSONAL INJURY SHUT OFF FURNACE BEFORE REMOVING THIS PANEL FILTER MAINTENANCE WHEN IT BECOMES NECESSARY TO REPLACE OR WASH FILTER REMOVE THE DIRTY FILTER FROM THE RACKS PROVIDED AND WASH OR REPLACE WITH IDENTICAL NEW FILTERS DO NOT REMOVE THIS LABEL SPECIAL HOMEOWNERS INSTRUCTIONS IMPROPER INSTALLATION ADJUSTMENT ALTERATION SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE PERSONAL INJURY OR LOSS OF LIFE FOR SAFE OPERATION IT IS THE RESPONSIBILITY OF THE OWNER AND OR USER THAT THE BURNER CHIMNEY VENT PIPE HEAT EXCHANGER AND CONTROLS SHOULD BE INSPECTED EVERY YEAR BY A QUALIFIED HEATING CONTRACTOR THE OWNER AND OR USER SHOULD ALSO CONDUCT PERIODIC VISUAL INSPECTIONS REFER TO THE USERS INFORMATION MANUAL PROVIDED WITH THIS FURNACE FOR DETAILS
38. RNAL STATIC PRESSURE COOLING UNIT HTG Speed Recommended CLG Speed 24 000 MED LOW MED LOW 30 000 MED LOW MED HIGH 36 000 MED LOW HIGH Speed Tap Furnace Airflow CFM vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 817 797 773 730 668 620 555 ML 1019 995 959 918 869 821 760 MH 1257 1210 1174 1125 1076 1024 959 High 1470 1420 1366 1312 1259 1196 1127 Speed Tap Temperature Rise vs External Static Pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 81 83 85 90 90 106 119 ML 65 66 69 72 76 80 87 MH 52 55 56 59 61 64 69 High 45 46 48 50 52 55 59 Speed Tap Blower Motor Current Draw Amps vs External Static pressure in WC uH 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 3 1 3 0 2 9 2 8 2 7 2 6 2 5 ML 3 9 3 8 3 6 3 5 3 3 3 2 3 1 MH 4 8 4 6 4 4 4 2 4 1 4 0 3 8 High 5 7 5 5 5 4 5 2 5 1 5 0 4 8 Speed Blower Motor Watts vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 312 303 298 291 280 273 264 ML 400 390 381 366 354 342 330 MH 513 490 478 462 447 432 413 High 624 605 591 573 556 542 522 Recommended operation range 37 All installations and services must be performed by qualified service personnel
39. T HEATING SPEED UNTIL SITUATION CORRECTION START THERMOSTAT CALLS FOR HEAT CONTACTS CLOSE CONTROL BOARD ENERGIZED INDUCER ENERGIZED PRESSURE SWITCH SENSES ADEQUATE DIFFERENTIAL PRESSURE CONTACTS CLOSE POWER IS APPLIED TO POWER INTERRUPTION THE SILICON NITRIDE SYSTEM SHUTS OFF IGNITOR IGNITOR RESTARTS WHEN POWER WARM UP IS 20 SECONDS IS RESTORED Y E AFTER IGNITOR WARM UP FOR THE GAS VALVE IS IGNITION ENERGIZED TO OPEN FLAME MUST BE DETECTED IF FLAME IS NOT DETECTED THE WITHIN 4 SECONDS IF GAS VALVE IS DE ENERGIZED FLAME IS DETECTED THE THE IGNITOR IS TURNED OFF AND DELAY TO FAN ON TIME THE CONTROL BOARD CONTROL GOES BEGINS 45 SECONDS INTO RETRY SEQUENCE 41 All installations and services must be performed by qualified service personnel AFTER DELAY TO FAN ON THE RETRY SEQUENCE EA PERIOD ENDS CIRCULATING PROVIDES A 60 SECOND EERATICH AIR FAN IS ENERGIZED AT WAIT BEFORE IGNITION HEATING SPEED THE OPTIONAL RETRY RETRY IS ELECTRONIC AIR CLEANER ATTEMPTED WITH AN AND HUMIDIFIER ARE ADDITIONAL 10 SECONDS ENERGIZED OF IGNITOR WARM UP TIME WHEN THERMOSTAT IS SATISFIED CONTACTS IF IGNITION ATTEMPT IS OPEN AND THE GAS UNSUCCESSFUL ONE MORE CALL VALVE IS DE ENERGIZED RETRY WILL BE MADE FOR AFTER PROOF OF FLAME BEFORE THE CONTROL BOARD HEAT LOSS INDUCER STARTS 5 SECOND GOES INTO SYSTEM LOCKOUT SATISFIED POST SURGE AND OPTIO
40. T IL FAUT PERCER UNE OUVERTURE DANS LA PORTE DE 250 POUCES CARR S POUR L AIR REPRIS VOIR LES D TAILS DE L EMPLACEMENT DANS LE MANUEL D INSTRUCTIONS CETTE CHAUDI RE REQUIERT UN SYST ME DE VENTILATION SP CIAL LONGUEUR D EVENT MAXIMALE 30 PIEDS LONGUEUR D EVENT MINIMALE 8 PIEDS CETTE CHAUDI RE DOIT TRE INSTALLEE CONFORM MENT AUX INSTRUCTIONS DU FABRICANT ET DES CODES LOCAUX EN L ABSENCE DE CODES LOCAUX SE CONFORMER AUX CODES SUIVANTS LE CAS CH ANT NATIONAL FUEL GAS CODE ANSI 2223 1 MANUFACTURED HOME CONSTRUCTION AND SAFETY STANDARD TITLE 24 CFR PART 3280 MANUFACTURED HOME INSTALLATION ANSI NCSBCS A225 1 ON PEUT INSTALLER LES TUYAUX D ADMISSION D AIR DE VENTILATION TRAVERS UN MUR D PAISSEUR MINIMALE DE 7 PO ET D PAISSEUR MAXIMALE DE 18 PO PERFORMANCES CET APPAREIL EST DE CAT GORIE I G N RATEUR D AIR CHAUD PULSE VENTILATION DIRECTE POUR MAISON MOBILE OU CARAVANE TEST 0 3 PO D EAU PRESSION STATIQUE CONCU POUR UNE TEMP RATURE D AIR DE SORTIE MAXIMALE DE 200 F AVEC UNE L VATION DE TEMP RATURE NOMINALE DE 55 F CONFORME AUX NORMES POUR CHAUDI RE CENTRALE ANSI Z21 47b CSA 2 3b 2008 POUR MAXIMISER L EFFICACIT R GLER L APPAREIL POUR AVOIR UNE ELEVATION DE TEMPERATURE DE 40 F CARACT RISTIQUES LECTRIQUES 115 VOLTS 60 HERTZ 1 PHASE INTENSIT DE COURANT MAXIMALE 7 15 A ATTENTION RISQUE D INCENDIE ET DE CHOC LECTRIQUE SEULS LE PERSONN
41. TS DURING No THE 4 SECOND FLAME PROVING gt SAME AS ABOVE PERIOD IGNITOR WARM UP IS THERE 24VOLTS AFTER HOT SURFACE IGNITOR WARM UP DOES GAS VALVE OPEN Yes CHECK WIRING TO GAS VALVE AND IF OK REPLACE GAS VALVE 54 All installations and services must be performed by qualified service personnel Yes AFTER GAS VALVE OPENS DO THE BURNERS IGNITE Yes DO BURNERS STAY LIT PAST PROOF OF FLAME CHECK DOES THE INTEGRATED CONTROL ENERGIZE THE CIRCULATING AIR BLOWER AFTER THE 45 SECOND TIME DELAY CHECK FOR PROPER MANIFOLD PRESSURE POSITIONED CORRECTLY ADJUST TO 3 5 FOR NATURAL GAS OR 10 0 WC FOR LP GAS IS IGNITOR REPOSITION TO CORRECT LOCATION CHECK ACROSS THE CIRCULATING AIR BLOWER TERMINALS CIR N amp HEAT FOR PROPER VOLTAGE REPLACE THE INTEGRATED CONTROL DOES THE CIRCULATING AIR FAN COME ON WHEN ENERGIZED CONFIRM IF EITHER BLOWER WHEEL IS RUBBING AGAINST HOUSING OR MOTOR SHAFT IS SPINNING FREELY AND REPAIR OR REPLACE AS NECESSARY DOES BLOWER No SPIN FREELY Yes IS CAPACITOR WORKING PROPERLY Yes REPLACE MOTOR No REPLACE CAPACITOR 55 All installations and services must be performed by qualified service personnel Yes No No DOES SYSTEM RUN UNTIL IS LED LI
42. Thermo Pride GAS FIRED HIGH EFFICIENCY FURNACE DOWNFLOW amp DIRECT VENT SEALED COMBUSTION MODELS CMA3 50D36N CMA3 75D36N CMC1 50D36N CMC1 75D36N CMC1 50DV3N CMC1 75DV3N INSTALLATION AND SERVICE MANUAL For installation in 1 Manufactured Homes 2 Modular Homes Buildings 3 Site Constructed Residential Single Story Dwellings WARNING FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS e Do nottry to light any appliance e Do not touch any electrical switch do not use any phone in your building e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e f you cannot reach your gas supplier call the fire department AWARNING f the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or loss of life AWARNING Improper installation adjustment alteration service or maintenance can cause injury or property damage Refer to this manual For assistance or additional information consult a qualified installer service agency or fuel supplier AWARNING Do not use this appliance if any part has been underwater Immediately call a qualified service technician to inspect the appliance and to replace any part of the electrical or control syst
43. URE COOLING UNIT HTG Speed Recommended CLG Speed 24 000 MED LOW MED LOW 30 000 MED LOW MED HIGH 36 000 MED LOW HIGH Speed Tap Furnace Airflow CFM vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 817 797 773 730 668 620 555 ML 1019 995 959 918 869 821 760 MH 1257 1210 1174 1125 1076 1024 959 High 1470 1420 1366 1312 1259 1196 1127 Speed Tap Temperature Rise vs External Static Pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 81 83 85 90 90 106 119 ML 65 66 69 72 76 80 87 MH 52 55 56 59 61 64 69 High 45 46 48 50 52 55 59 Speed Tap Blower Motor Current Draw Amps vs External Static pressure in WC ee 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 3 1 3 0 2 9 2 8 2 7 2 6 2 5 ML 3 9 3 8 3 6 3 5 3 3 3 2 3 1 MH 4 8 4 6 4 4 4 2 4 1 4 0 3 8 High 5 7 5 5 5 4 5 2 5 1 5 0 4 8 Speed Tap Blower Motor Watts vs External Static pressure in WC Static Pressure 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 312 303 298 291 280 273 264 ML 400 390 381 366 354 342 330 MH 513 490 478 462 447 432 413 High 624 605 591 573 556 542 522 Recommended operation range 35 All installations and services must be performed by qualified service personnel CMC1 50D36 ALTERATIONS REQ D FOR DESIGN EXTERNAL STATIC PRESSURE
44. a Shut off incoming power b Block return air opening or disconnect blower motor leads c Restore power to furnace d Set thermostat above room temperature calling for heat e When temperatures are reached in furnace at limit control setting with blower out of operation burner should shut off f Shut off electrical power IMPORTANT Remove blockage or reconnect blower motor and restore power 2 Make certain thermostat will automatically start and stop furnace 3 Block the flue pipe outlet gradually with a flat piece of metal until the pressure switch functions shutting off the main burners IMPORTANT Remove flue outlet blockage when done 4 Block the PVC pipe inlet gradually with a flat piece of metal until pressure switch functions shutting off the main burners IMPORTANT Remove air inlet blockage when done 5 Remove the blower compartment access door with the furnace operating The door interrupt switch is in the 120 volt circuit and will shut down the entire system Replace the blower door and the furnace start up cycle will begin 47 All installations and services must be performed by qualified service personnel VI INSTALLER S INSTRUCTIONS TO USER After completing the installation the installer shall inform and or demonstrate to the homeowner 1 The location of all the instructions in the furnace and that the instructions must be kept along with instructions for any accessories in the plastic pouch 2 The loc
45. acez le couvercle du compartiment du br leur t de la gt 390558 r THIS FURNACE IS EQUIPPED FOR NATURAL GAS This furnace is equipped with orifices sized for operation with natural gas For conversion to propane gas see CONVERSION instructions label on the furnace Orifices necessary for propane conversion are provided in the parts package located on the inside of this furnace Remove this label only after the furnace conversion has been made Enlever cette tiquette seulement apr s la conversion de la chaudi re 1 CETTE CHAUDI RE EST QUIP E POUR LE GAZ NATUREL Cette chaudi re est munie des orifices dimensionn s pour un fonctionnement au gaz naturel Pour la conversion au gaz propane voir l tiquette d instructions CONVERSION pos e sur la chaudi re Les orifices n cessaires pour la conversion au propane sont dans l emballage de pi ces d tach es situ dans la chaudi re 2 All installations and services must be performed by qualified service personnel This and the previous page contain reproductions of the various safety and instruction labels placed on the Thermo Pride Condensing Gas Furnaces Please read and comply with the contents of these labels mre ED 3018528 FOR INSTALLATION IN MANUFACTURED HOME DATE OF MANUFACTURE 14 JAN 2014 FOR INSTALLATION AS CENTRAL FURNACE SPECIAL TYPE FOR SINGLE STORY DWELLING ORIFICE LINE PRESSURE IN W C MANIFOLD
46. al Fuel Gas Code NFPA 54 ANSI Z233 1 Latest Edition Any leaks must be repaired immediately after turning off the gas supply A final test for gas leakage must be made after purging the gas line A CAUTION DO NOT wet electronic components during the leak test Wetting electronic components may damage circuitry and cause a All installations and services must be performed by qualified service personnel hazardous situation Dry moisture from all leads and terminals if wetting occurs Wait at least 24 hours for the circuit to fully dry before energizing the system AWARNING The furnace and its gas valve must be disconnected from the gas supply during pressure testing of the gas supply system at pressures in excess of 1 2 PSIG or 14 inches w c F GENERAL VENTING REQUIREMENTS The CMA CMC furnace venting system must be installed by a qualified service person in accordance with local codes the National Fuel Gas Code NFPA 54 ANSI Z223 1 Latest Edition and these instructions The following items and local code requirements must be followed 1 The vent air intake terminations outlined by Thermo Products in this manual must be used 2 The entire vent air intake system must be made of PVC Schedule 40 pipe except for the concentric vent kit NOTE All CMA CMC furnaces must be installed with outside combustion air 3 The flue vent pipe and combustion air pipe must be at least as large as the exhaust vent air intake pipe specified by Th
47. appliance will not operate follow the instructions To Turn Off Gas To Appliance and call your service technician or gas supplier GAS CONTROL VALVE GAS CONTROL VALVE 2 STAGE d TOGGLE SWITCH N TOGGLE SWITCH INSTRUCTIONS POUR LE FONCTIONNEMENT STOP Lisez l information sur la s curit au haut de cette tiquette R glez le thermostat sa position la plus basse Coupez toute l alimentation lectrique la chaudi re Cette chaudi re est quip e d une surface d allumage chaude qui allume automatiquement le br leur N essayez pas d allumer le br leur manuellement Placez l interrupteur de commande de gaz la position OFF Attendez cinq 5 minutes pour que tout le gaz soit vacu Humez l air pour d tecter une ventuelle odeur de gaz sans oublier de l humer aussi pr s du sol ou du plancher Si vous sentez une odeur de gaz STOP Suivez le point B de l information sur la s curit au haut de cette tiquette Si vous ne sentez aucune odeur de gaz passez l tape suivante Move the gas control switch to the position 7 Placez l interrupteur de commande de gaz la position ON Appliquez toute l alimentation lectrique la chaudi re 9 R glez le thermostat la position d sir e et l
48. as When impractical choose a location that protects the vent from strong winds such as behind a fence or hedge e n geographical areas with considerable snowfall it is advisable to locate the vent terminal much higher than the minimum 12 inches above ground to prevent blockage by snow accumulation or drifting e The vent and combustion air terminations shall be checked periodically at least at the start of each heating season for restriction or blockage from foreign material in the exhaust vent or in the air intake piping Clean the air intake and vent terminations when necessary Installation Of Outside Exhaust Intake Terminations 1 After determining appropriate installation locations suitable locations must observe all clearances specified in this manual mark and cut two 2 2 3 8 inch diameter holes in the outside wall for the outdoor terminal s 2 Measure and cut two 2 2 inch diameter thermoplastic pipes 1 1 2 inches longer than the depth of the wall Cutting the pipe longer leaves a inch connection allowance at both ends of the pipe Using PVC pipe cement glue a PVC elbow or coupling fitting to one 1 end of each pipe Before inserting the pipe through the wall mark the other end of the pipe so the elbow orientation can be determined Also if a protective shield refer to Section H passage 1 of this manual will be used on the exterior surface of the wall it should be installed at this time From the inside g
49. as sized 1 for natural gas having a heating value of 1025 BTU per cubic foot and a specific gravity of 65 or 2 for liquefied propane gas with a heating value of 2500 BTU per cubic foot and a specific gravity of 1 55 The information plate inside the furnace vestibule will specify which gas your furnace is orificed for If the furnace is installed at an altitude that is more than 2 000 feet above sea level it is mandatory that the input to the burner be reduced 4 0 for every 1 000 feet that it is above sea level If the furnace is installed at an elevation of 5 000 feet its input must be reduced 20 0 Example a furnace rated at 75 000 BTU at sea level must be reduced to a firing rate of 60 000 75 000 x 80 60 000 at an elevation of 5 000 feet If the furnace is installed at an elevation of 2 000 feet or less no reduction in input is required Your gas supplier or Thermo Products will supply you with the correct orifice sizing information To check the input of your natural gas furnace allow the unit to operate for 10 to 15 minutes and proceed as follows 1 Call your gas supplier and ask for the BTU content heating value of one cubic foot of the gas supplied to the installation area An alternate approach is to assume a value of 1025 BTU Cu Ft which is the national average 2 With all other gas appliances turned off and using a stopwatch clock the time required for the small dial on the gas meter to make one full revolution Th
50. ation and use of the manual gas shut off valve and furnace electrical disconnect switch Instruct user to always shut off gas before shutting off electric power 3 The sequence of operation of the furnace 4 The correct operation and maintenance of the appliance as outlined in this manual 5 That failure to maintain and operate this furnace in accordance with these instructions could result in hazardous conditions bodily injury property damage and may void the limited warranty on the furnace 6 Review with and encourage the user to read the label reproductions and all warnings and instructions in this manual 7 Recommend that the user have a qualified heating contractor inspect the furnace at the start of each heating season Inform the user of the frequency of inspection required for each component 8 Should the furnace not operate after installation note diagnostic code through view port prior to removing door Vil DEALER MAINTENANCE The following maintenance procedures should be performed at the beginning of each heating season by a qualified heating contractor Correct any deficiencies at once AWARNING Personal injury or property damage could result from repair or service of this furnace by anyone other than a qualified heating contractor AWARNING To avoid injury from moving parts shut off the power to the furnace before removing blower compartment door 48 All installations and services must be performe
51. ations and services must be performed by qualified service personnel 77777 777 777 7777 A 2 77 All installations and services must be performed by qualified service personnel UNIT IN CMCI 75DV3N ITEM IP TION PART NO QTY PART NO QTY 1 19108 1 2 HEAT EXCHANGER 1 22 INDUCER 3 CASING LEFT 1 23 INDUCER GASKET 4 NG RIGHT 1 24 IGNITER TOP FRONT 25 FLAME SENSOR TOP REAR CAM LATC 6 CASING REAR 1 27 CAM 7 STAND OFF 2 us E 2 8 AIR SIDE RIGHT 1911 1 19117 1 9173 PAN 1 10 AR SIDE LEFT 1 19116 1 19119 300276 2 300276 2 2 2 J00R 1 1 TRAP BRA z 41 TUBING CAPACITOR 1 42 FITTING NYLON 16F AUX LIMIT 43 COL A INTECRATED FAN CONTROL 44 16H 5 619127 7 17 LATCH 2 2 7 2 3 EL HORIZONTAL MANIFOLD 3 ORIFICE 2 3 7 49 RADIATOR HOSE 2 2 JE AOPS7744 1 AOPS7744 HOSE CLA
52. b Clean the coil with a vacuum cleaner by going through the blower pan opening being careful not to bend or damage any of the fins c Once all components are cleaned they must be re installed to their factory produced state Any seals or joints in the flue system which have been removed or loosened must be reconnected and sealed if necessary Do this in accordance with the installation instructions A CAUTION The inducer motor mounting plate gasket and the collector box gasket must be replaced D HOUSE AIR BLOWER Check and clean the blower wheel housing and compartment with a vacuum Check the motor name plate and follow the motor manufacturers instructions for lubrication if required IMPORTANT Some motors are permanently lubricated and should not be oiled See motor name plate for specific instructions E RETURN AIR FILTER The Return Air Filter s Provided with this unit is a permanent type filter This filter s should be inspected and when dirty cleaned or replaced if necessary to 50 All installations and services must be performed by qualified service personnel assure proper furnace operation Follow the cleaning removal and replacement procedure below FILTER MAINTENANCE PROCEDURE The filter is located inside front door of the CMA CMC Remove filter retaining rod and remove dirty filter Clean the filter by vacuuming rinsing with tap water hosing or dipping in an ordinary detergent solution After cleaning r
53. d by qualified service personnel CAUTION Label wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation A ELECTRICAL 1 Check diagnostic code through view port prior to removing access door 2 Check all wiring for loose connections and any signs of damage or unusual wear 3 Check for correct voltage at the furnace when operating 4 Check amp draw on blower motor and inducer motor to assure they are not exceeding name plate amp rating 5 Check for correct operation and proper settings if manually adjustable of all controls Shut off gas and disconnect power before continuing B GENERAL INSPECTION 1 VENT PIPE COMBUSTION AIR INTAKE a Remove the vent and check the vent for signs of carbon build up and for signs of blockage b The entire length of vent and combustion air inlet pipe and their terminations should be inspected for restrictions loose or loosely sealed joints carbon build up Also inspect the outside vent and combustion air terminals and ensure that they are clear and unobstructed 2 CONDENSATE LINE TRAP ASSEMBLY The condensate line must be inspected to make sure it is not blocked All of the lines should be flushed with water to remove any build up of sediment 3 BURNERS If it appears that material is accumulating in the burner box the burner box cover can be removed and the box and burners can be vacuumed NOTE The igniter amp flame sensor must b
54. e an air tight seal at 22 All installations and services must be performed by qualified service personnel the conclusion of the vent pipe installation This will insure a leak free return air compartment Refer to Figure 6A Figure 6A NOTICE The exhaust vent pipe must be supported every 4 feet After making sure the length of the piping is correct glue all connections in place AWARNING This CMA CMC furnace has been designed to be installed as a direct vent system and must have its combustion air brought in from outside the conditioned space The failure to install the vent air intake system as specified in these instructions will void the heat exchanger warranty and may result in property damage personal injury or loss of life NOTICE The furnace model series CMA CMC may be vented either through the sidewall or the roof For sidewall instructions continue to the following section For roof venting refer to Section IV J of this manual NOTICE The air intake pipe must be supported every 4 feet After making sure the length of the piping is correct glue all connections in place except the connection to the burner box If the combustion air piping is installed in a warm humid place such as a laundry room or above a suspended ceiling it must be insulated with a 1 0 foil faced insulation or its equivalent If the vent piping is run through an unconditioned space it must be insulated with a 1 0 foil faced insulation
55. e cas ch ant mettez le mode de fonctionnement la position HEAT 10 Si la chaudi re ne fonctionne pas suivez les instructions de POUR COUPER L ALIMENTATION EN GAZ DE LA CHAUDI RE et appelez votre technicien de service ou votre fournisseur de gaz UNa e VALVE DE COMMANDE DE GAZ VALVE DE COMMANDE DE GAZ DEUX TAGES N INTERRUPTEUR BASCULE 7 INTERRUPTEUR BASCULE EM OFF GAS TO APPLIANCE 1 Set thermostat to lowest setting and if equipped set the operating mode to COOL or OFF 2 If service is to be performed turn off all electric power to the appliance 3 To turn off gas control valve remove the burner compartment cover Move the gas control switch to the OFF position 5 Replace the burner compartment cover gt POUR COUPER L ALIMENTATION EN GAZ DE LA CHAUDI RE BEI 1 R glez le thermostat sa position la plus basse et le cas ch ant r glez le mode de fonctionnement la position COOL ou OFF 2 S il faut accomplir une certaine t che coupez toute alimentation en lectri chaudi re 3 Pour fermer la valve de commande de gaz enlevez le couvercle du compartiment du br leur Mettez l interrupteur de commande de gaz la position OFF 5 Repl
56. e joints inside the vestibule should be sealed with a silicone caulk to allow for maintenance Notice Do not use silicone caulk to seal the PVC sleeve or coupling to the metal air intake collar on the burner box The screw securing the sleeve or coupling to the collar is sufficient 7 Use the two radiator hose clamps to connect both the exhaust vent and combustion air vent pipes to the venting system included in the parts package This will aid in the serviceability of the vent should it need to be removed in the future Refer to figure 6 8 Vent connections shall be checked for leakage with the furnace induced draft blower running and with the vent termination blocked A mild soap and water solution may be used to check for leaks 9 Vent pipe passing through an unheated space must be insulated with 1 0 thick foil faced fiberglass insulation or its equivalent to prevent freezing of any condensate within the pipe 10 Minimum clearance from the PVC pipe to combustible material is zero inches IMPORTANT The CMA CMC furnace models are vented through the roof For roof venting refer to Section IV J of this manual 21 All installations and services must be performed by qualified service personnel G CONNECTING THE EXHAUST VENT AND COMBUSTION AIR INTAKE Figure 6 shows the typical exhaust vent and combustion air intake connection
57. e meter dial will state the cubic feet of flow for one revolution usually one two or five FORMULA BTU Cu Ft x Number of Cu Ft x 3600 Seconds Input BTU hr Seconds for one revolution EXAMPLE 1025 BTU Cu Ft x 2 Cu Ft x 3600 73 505 BTU Input 100 40 Seconds Check the model number of the furnace the input rate the type of gas and the manifold pressure on the rating label located in the burner vestibule If using the above example the furnace is a CMA2 75N model and the input rate is 73 505 BTU hr The input rate would be acceptable because it was within 2 of the listed input of 75 000 3 Make sure that the gas supply pressure to the furnace is within the allowable range of 5 5 to 14 WC pressure on natural gas and 11 0 to 14 0 WC on propane gas The pressure to the furnace must be checked while the furnace burner and any other gas appliances on the same supply system are operating using the 1 8 in NPT manifold pressure tap 44 All installations and services must be performed by qualified service personnel GAS PRESSURE CHART FOR CMA CMC MODEL FURNACES SUPPLY PRESSURE MANIFOLD PRESSURE MAX 14 WC 3 5 3 WC MAX 14 WC uu PROPANE MIN 10 0 3 WC TABLE 3 This gas furnace is equipped with a fixed orifice sized for the manifold pressure shown on the rating label The input can only be increased or decreased by adjusting the manifold pressure Remove the 1
58. e removed before removing the assembly If necessary the burner assembly can be removed by taking out the two screws one on each bracket at the bottom of the box Assembly must be pulled amp tilted away from the burner compartment in order to remove from box If necessary the individual tubes can be cleaned out by using compressed air Care must be taken not to damage the igniter 4 INDUCER BLOWER ASSEMBLY Inspect the pressure switch and drain tubing connections and inspect the blower assembly for warpage deterioration and carbon or other build up If 49 All installations and services must be performed by qualified service personnel necessary clean the accessible portions of the housing and blower with a damp cloth Vacuum to remove any lint or dust from the motor assembly 5 GASKETS SEALING MATERIALS Inspect all visible gaskets for signs of degradation or liquid seepage especially any seals which were removed as part of the inspection Replace any suspect gaskets C HEAT EXCHANGER Inspect for corrosion pitting warpage deterioration carbon build up and loose gaskets in the flue pipe burner box and accessible areas of the heat exchanger 1 CLEANING THE COIL AIR SIDE a Remove the blower from the blower compartment In order to remove the blower it will first be necessary to disconnect the furnace from the outside power supply and disconnect the blower wire harness from the furnace at the blower pan quick connect
59. earance must be provided to the front of the unit See Figure 4 Note access to diagnostic view port 2 d N x EE E CLEARANCE TO ES M v NL V MN FURNACE NSS ERE CABINET SEE ore ae f f NSS INCHES SIDE T i A ACE NEAREST e AE WALL OR FRET PARTITION NEAREST NN P P S WALL OR 7 f 220271 S PARTITION Le 222 r CMA3 SERIES CMCI SERIES Figure 4 D CLOSET INSTALLATION 1 The return air opening into the closet is to have a minimum free area of 250 sq in see Figure 5 2 The return air opening may be located in the top center or ideally bottom of the closet door or side wall 17 PROVIDE MIN 2 OPEN FREE 0 OR SIDE WALL 0 OR a 0 E IN CLOSET DOOR LOCATED IN CLOSET DOOR LOCATED 77 AT TOP CENTER E AT TOP CENTER OR BOTTOM All installations and services must be performed by qualified service personnel 5050 ON pd PROVIDE MIN 250 SQ INCH A IN FRONT gt Q0 INC uu OPEN FREE AREA IN FRONT PC ELA OR SIDE WALL DIAGNOSTIC VIEW PORT CLOSET DOOR CMA3 SERIES 1 SERIES Figure 5 AWARNING Do not obstruct any return air openings including the return grille on the furnace To do so may cause the furnace to activate the high limit and shut down
60. em that has been underwater PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION INITIAL FIRING AND BEFORE PERFORMING ANY SERVICE OR MAINTENANCE THESE INSTRUCTIONS MUST BE LEFT WITH THE USER AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL LIE THERMO PRODUCTS LLC AMO CERTIFIED POST OFFICE BOX 217 C www ahridirectory org NORTH JUDSON IN 46366 PS PHONE 574 896 2133 U MG 517 Intertek ECN 5396 MA 141211 MADE IN USA TABLE CONTENTS SECTION BEGINNING PAGE SAFETY INFORMATION 1 Il FURNACE SPECIFICATIONS 7 Ill GENERAL INSTRUCTIONS AND CLEARANCES 11 IV GENERAL INSTALLATION 13 A FURNACE LOCATION 13 B BASE INSTALLATION 15 C ALCOVE INSTALLATION 16 D CLOSET INSTALLATION 14 E FUEL PIPING 19 F GENERAL VENTING REQUIREMENTS 20 G CONNECTING THE EXHAUST VENT AND COMBUSTION 22 AIR INTAKE H DIRECT VENTING THROUGH A SIDEWALL 24 INSTALLATION OF OUTSIDE EXHAUST INTAKE TERMINATIONS 27 J CONNECTING THE FURNACE TO ROOF VENT INTAKE TERMINATIONS 28 K CONDENSATE DRAIN LINE AND TRAP ASSEMBLY 30 L ELECTRICAL WIRING 31 V STARTING THE UNIT 41 A SEQUENCE OF OPERATION 41 B INITIAL START UP 43 C ADJUSTMENT OF BTU INPUT RATE 44 D BURNER ADJUSTMENT 45 E SETTING TEMPERATURE RISE 46 F FURNACE CHECK OUT PROCEDURE 47 VI INSTALLER S INSTRUCTIONS TO USER 48 VII DEALER MAINTENANCE 48 A ELECTRICAL 49 B GENERAL INSPECTION 49 C HEAT EXCHANGER 50 D HOUSE AIR BLOWER 50 E
61. eplace the completely dry filter and retain with retaining rod If the filter has a mesh the mesh side of the filter must be towards the furnace FILTER REPLACEMENT Should the filter require replacement replace with like size and type filter as originally supplied with furnace IMPORTANT Remind homeowner of importance of monthly filter inspections during the heating season to ensure efficient and trouble free operation of their furnace VIII TROUBLESHOOTING NOTICE BEFORE TROUBLESHOOTING FAMILIARIZE YOURSELF WITH THE START UP AND CHECKOUT PROCEDURE ALL INSTALLATION AND SERVICES MUST BE PERFORMED BY QUALIFIED HEATING CONTRACTORS To assist you in troubleshooting this furnace it is equipped with an integrated ignition control with diagnostics These diagnostics evaluate what control system has experienced a failure and will activate a flashing light on the control in different sequences to help pinpoint the failure which has occurred Note check diagnostic code through view port prior to removing access door DIAGNOSTIC FEATURES The 50A65 control used on this furnace continuously monitors its operation and the operation of the system If a failure occurs the LED light on the control will flash a code If the failure is internal to the control the light will stay on continuously In this case the entire control should be replaced as the control is not field repairable 51 All installations and services must be perf
62. ermo Products No reduction in size is permissible The CMA CMC requires 2 Schedule 40 PVC pipe 4 This furnace shall not be common vented with any other appliance including those burning solid fuels 5 The maximum permissible vent length of straight pipe and number of elbows permitted for the exhaust vent and combustion air inlet is shown in Table 2 The elbows shown are in addition to the length of straight pipe permitted When counting elbows all elbows used in the exhaust vent or combustion air intake must be counted This includes elbows used inside the furnace jacket and termination elbows Care should be taken to plan out the vent system to be as short as possible but not shorter than 8 ft and to contain as few elbows as possible to insure the best possible operation of the furnace 20 All installations and services must be performed by qualified service personnel MAXIMUM VENT LENGTH VENT SIZE 2 IN PVC FURNACE EXHAUST COMBUSTION AIR INTAKE MODEL VENT ELBOWS NO ELBOWS NO Note the drain elbow supplied with furnace count as 1 elbow Note the two 45 elbows supplied with furnace count as 1 elbow Table 2 6 A hack saw may be used to cut the PVC pipe It must be cut smoothly at right angles with all burrs removed All joints must use standard PVC Schedule 40 elbows and couplings Joints are not to be made by gluing except where noted and butting together the cut or raw edges of the vent pipe Th
63. gas leak may not be detected by smell If this furnace is installed below grade contact your gas supplier for a gas detector A qualified installer or service person must perform all gas piping and testing Piping from the natural gas meter to the furnace shall be in accordance with requirements of the local gas utility Piping from the LP tank to the furnace must follow the recommendations of the gas supplier A readily accessible manual shut off valve certified for the applicable gas with a non displaceable rotor member shall be installed within six feet of the gas equipment it serves A union or flanged connection shall be provided directly up stream of the burner to allow burner removal Unions must be of a ground joint type or flange jointed type using a gasket resistant to the applicable gas Pipe dope or sealant certified to be resistant to the action of the applicable gases should be used on all threaded joints A drip leg must be used on both LP and Natural gas installations prior to the furnace in order to trap oil condensate and other impurities which might otherwise lodge in the gas valve or plug the burner orifice A drip leg shall be provided at the outlet of the gas meter when there is excessive condensation between the gas meter and the furnace Failure to install a drip leg may void the limited warranty on the furnace AWARNING All gas pipe connections must be leak tested using methods approved by State Local and Nation
64. he outside vent and air intakes are installed according to instructions and that they are free from blockage 7 Make sure that the drain trap is properly connected to the furnace and to the drain system OPERATING INSTRUCTIONS AWARNING Turn off power to furnace before it is placed into service The gas piping system must have been leak tested by a qualified heating contractor in accordance with State Local and National Codes including the National Fuel Gas Code NFPA 54 ANSI Z233 1 Latest Edition AWARNING It may be necessary to purge the air out of the gas line for initial start up of the furnace after installation This should be done by a qualified heating contractor If excessive gas escapes when purging the gas supply at the union allow the area to ventilate for at least 15 minutes before attempting to start the furnace LP gas is especially dangerous because the specific gravity of LP gas allows it to accumulate at floor level at a dangerous concentration AWARNING Heat exchanger oil will burn off on initial firing creating an unpleasant odor To prevent this odor from occurring more than once it is suggested that 1 A window s be opened 2 The thermostat set at highest setting 3 The furnace remain running as noted above for 15 minutes or until odor has dissipated 43 All installations and services must be performed by qualified service personnel C ADJUSTMENT OF BTU INPUT RATE The orifice for this furnace w
65. hru the 3 ceiling roof flashing plate Concentric vent utilizing existing roof jack as a chase Follow instructions included with concentric vent kit AOPS7483 Concentric vent without roof jack as a chase Follow instructions included with concentric vent kit AOPS7483 Dual 2 vent air termination kit AOPS7484 1 Remove roof jack assembly 2 Place a 2 2 holes ceiling roof flashing plate to the ceiling centering it over existing hole Place second flashing plate on roof over existing hole Plate must be sealed to roof to ensure a weather proof seal Secure plate to roof Drop pvc pipes thru holes in flashing plates Secure with hose clamps to flashing plate Seal with silicone type caulk quoe GP eo 28 All installations and services must be performed by qualified service personnel The furnace may be vented vertically through the roof The outlet inlet of the vent and air intake terminations shall be a minimum of 12 inches above highest anticipated snow level The vent outlet must be installed a minimum of 12 in above the air intake inlet The combustion air intake shall be installed upwind of the vent outlet when exposed to prevailing winds The exhaust vent and combustion air intake can be a minimum of 3 in and a max of 24 in apart see Figures 11 amp 12 When installing dual 2 PVC pipes and the 2 flashing plates AOPS7484 on pitched roof slope adapter may be used to simplify installation D 2 9
66. ide Alarming Devises CSA 6 19 5 The installer shall be familiar with and comply with all codes and regulations applicable to the installation of these heating appliances and related equipment In lieu of local codes the installation shall be in accordance with the current provisions of one or more of the following standards a Federal Manufactured Home Constructions amp Safety Standard H U D Total 24 Part 280 b American National Standard ANSI 119 2 NFPA 501 OC for all recreational vehicle installations All installations and services must be performed by qualified service personnel c American National Standard ANSI Z223 1 NFPA 54 for all gas fired furnaces d American National Standard ANSI C1 NFPA 70 Electric Code for all electrical field wiring e These gas fired units have been investigated under standards ANSI Z 21 47 CAN CGA 7223 2001 Central Furnace test standards f These gas fired units have been listed by ETL For installation as central furnace special type for single story dwelling ZA WARNING The area around the furnace must be kept free and clear of combustible materials especially papers and rags ZA WARNING This furnace is not to be used as a construction heater Listed below are definitions of COMBUSTIBLE MATERIAL and NON COMBUSTIBLE MATERIAL COMBUSTIBLE MATERIAL Material made of or surfaced with wood compressed paper plant fibers plastics or other material that wi
67. ior to removing door 390541 _ Can cause personal injury or loss of life Gaz de combustion dangereux Peut blesser ou tuer des OUTSIDE POWER SOURCE personnes es CONNECT 115 60Hz TO L1 HOT AND 12 COMMON 390229 KEEP CLOSED WHEN APPLIANCE IS IN OPERATION DOIT ETRE FERME QUAND L APPAREIL FONCTIONNE 390290 L 390554 THIS FURNACE MUST BE INSTALLED SO THERE ARE PROVISIONS FOR VENTILATING AIR CETTE CHAUDI RE DOIT TRE INSTALL E DE MANI RE ASSURER UN AIR DE VENTILATION POUR VOTRE S CURIT QUOI FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ N ALLUMEZ AUCUN APPAREIL NETOUCHEZ AUCUN INTERRUPTEUR LECTRIQUE N UTILISEZ AUCUN T L PHONE DU B TIMENT APPELEZ IMM DIATEMENT VOTRE FOURNISSEUR DE GAZ PARTIR DU T L PHONE D UN VOISIN SUIVEZ LES DIRECTIVES DE VOTRE FOURNISSEUR SI VOUS NE POUVEZ PAS JOINDRE VOTRE FOURNISSEUR APPELEZ LES POMPIERS POUR VOTRE S CURIT NEMMAGASINEZ PAS OU NUTLISEZ PAS D ESSENCE ET LIQUIDES INFLAMMABLES DANS LE VOISINAGE DE CET APPAREIL NIDE TOUT AUTRE CETTE UNITE NE DOIT ETRE INSTALLEE ET ENTRETENUE QUE PAR UN CHAUFFAGISTE QUALIFI LES INSTRUCTIONS DE FONCTIONNEMENT SONT SITUEES DANS L APPAREIL PRES DU BRULEUR Inspect rubber hose connecting inducer outlet to PVC tee and all vent system joints for leak free connections befor furnace operation Avant de d marrer la chaudi re inspecter le tuyau en caoutchouc reliant la bo
68. l be installed a minimum of 14 inches from any obstruction and 3 feet from an inside corner of an L shaped structure pt Ci L Dimension B SPD Y i Front View of a Typical Single Story House Plan f an L Shaped House LEGEND V Vent terminal GO Air supply inlet Vent terminal installation prohibited within this region Requirement for US Installations porch deck or balcany 12 inches Distance to window or door that may be opened 12 inches Distance to permanently closed window Tu cine hes twr Dis ventillated soffit ve the terminal within a horizontal 24 inches dis f 2 feet from the f the terminal Distance to unventilated soffit 24 inches Distance to outside corner 24 inches Distance to inside corner 9 to each side of centerline extended above meter regulator 4 feet ce to service regulator vent outlet 4 feet Distance to nonmechanical air supply inlet to building or the combustion 12 inches air inlet to iance distance to mechanical air supply inlet 3 feet above if within 10 feet horizontally
69. langes down to 1 inch While the top of distribution duct is being pulled up with one hand bend down each side of the connector duct tightly to the base assembly with the other hand This assures a tight connection between the base assembly and the connector duct and that the distribution duct will be full size Use high temperature tape and or high temperature silicone caulking on all joints and seams to minimize air leakage Secure the base assembly to the floor with two screws in the front flange 2 Cottage Base Model 01COT BASE for CMA3 models only The 01COT BASE cottage base Figure 1C is required for a freestanding cottage base installation The cottage base allows the two sides and rear to have an 8 x 12 register installed IMPORTANT All joints and seams of supply ducts must be sealed with a sealing method suitable to the application conditions and temperatures High temperature silicone and or aluminum tape Refer to assembly and installation instructions included with cottage base for additional information The model CMC does not require a base for installation The integrated coil cabinet serves as a base The duct connection will be made to the bottom of the furnace A sheet metal cover plate may be installed to protect any exposed combustible flooring 16 All installations and services must be performed by qualified service personnel C ALCOVE INSTALLATION In this application a minimum of 18 inches of cl
70. led directly on a combustible floor and is not required to be installed on a base This furnace is ETL listed for closet alcove or free standing applications All applications must comply with the requirements of this manual Combustible Floor Base Model 70 BASE For CMA3 models only RY a mM AAA NY 7 CONNECTOR DUCT gt 12x12x14 7 COMBUSTION AIR DUCT NOT USED FOR CMA Figure 1 APPLICATION 13 All installations and services must be performed by qualified service personnel Coil Cabinet Model CE113S CE213T Note Coil cabinet cannot be utilized as a cottage base CE113S CE213T Figure 1B Cottage Base Model 01COT BASE For CMA3 models only NOTE Serves as a plenum for single story applications with exposed supply air systems Figure 1C All installations and services must be performed by qualified service personnel BASE INSTALLATION CMA3 models only 1 Combustible Floor Base Model 70 BASE for CMA3 models only Use the base bottom panel as a template to mark floor opening locations see Figure 2 Cut a square opening in the floor for the supply air connector duct Cut the opening 1 inch larger than the square template opening duct requires 1 inch clearance to combustible floor FUEL LINE ENTRY Zur m POINT REAR WALL OF CLOSET OR ALCOVE gor
71. ll ignite NON COMBUSTIBLE MATERIAL Material that will not ignite and burn Such materials consist entirely of steel iron brick tile concrete slate glass or a plaster combination thereof MODELS CMA3 CMC1 CLOSET ALCOVE FRONT BACK SIDES VENT CONNECTOR PVC TOP PLENUM SIDES TOP AND SIDES OF DUCT BOTTOM OF DUCT Table 1 This heating appliance must be installed with clearances not less than the minimums shown above as well as ample clearance for easy access to the air filter blower assembly burner assembly controls and vent connections All installations and services must be performed by qualified service personnel IV GENERAL INSTALLATION A FURNACE LOCATION 1 For best performance locate the furnace so that it is centralized with respect to the duct system 2 The furnace installation is only intended for free air return through the furnace door louvers DO NOT connect a ducted return air system directly to the furnace An improper return air installation may create a hazard and damage equipment as well as void all warranties 3 Model furnace may be installed on a combustible floor when utilizing either the No 70 counterflow floor base or CE113S CE213T coil cabinet for below the floor duct systems or the cottage base for floor level air distribution See Figure 1A for description of Combustible Floor Base and Figure 1C for Cottage Base 4 Model CMC1 furnace is designed to be instal
72. lue a coupling fitting to each pipe using PVC pipe cement while being careful to maintain the proper orientation of the termination elbow s Complete the assembly of the outlet and inlet as shown in Figure 10 making sure that the spacing between the inlet and outlet complies with that noted in Figure 8 27 All installations and services must be performed by qualified service personnel C PREGLUED SECTION OF PVC PIPE W ELBOW NOTE LENGTH THICKNESS 5d DEP Go PVC ELBOW COUPLINGS Y SO pve PIPE s 27 MN X EXTERIOR A WALL NI 2 2d PVC ELBOW TYPICAL INSTALLATION USING ELBOWS TYPICAL INSTALLATION USING COUPLINGS FLUSH AGAINST THE EXTERIOR WALL FLUSH AGAINST THE EXTERIOR WALL Figure 10 Typical Construction Details of Sidewall Vent and Air Intake Terminations 3 Finish the vent installation by caulking the annulus to seal around the two 2 holes where the thermoplastic pipes pass through the wall 4 To prevent foreign material insects or small animals from entering the pipes an optional vent or intake terminal stainless steel screen is available from Thermo Products under part no 320219 J CONNECTING THE FURNACE TO ROOF VENT AIR TERMINATIONS The CMA CMC is designed to be vented with either a concentric vent assembly or twin 2 pvc stacks The concentric vent AOPS7483 can be vented through the ceiling roof either thru the existing roof jack or t
73. n to Propane Gas see instruction MG 815 in Gas Conversion Kit AOPS7743 3 These Category Type IV furnaces are shipped completely assembled and wired internally See the Dealer Receiving and Freight Claim Procedure Section of the price guide for parts shortage or damage The furnace and duct system must be adjusted to obtain a temperature rise of 40 F to 70 F through the furnace after installation For the Energy Star Eco Tech models the temperature rises are 40 F to 70 F for the 50 series and 50 F to 80 F for the 75 series See rating label located on separator panel inside the furnace vestibule The installation must conform with local codes or in the absence of local codes with the National Fuel Gas Codes ANSI Z223 1 or latest edition and with these instructions AWARNING This furnace is not to be used for temporary heating of buildings or structures under construction Many of the chemicals used during construction when burned form acid bearing condensate that can substantially reduce the life of the heat exchanger 4 t is recommended that a commercially available CO alarm be installed in conjunction with any fossil fuel burning appliance The CO alarm shall be installed according to the alarm manufacturers installation instructions and be listed in accordance with the latest edition of the UL Standard for Single and Multiple Station Carbon Monoxide Alarms UL 2034 or the CSA International Standard Residential Carbon Monox
74. ntration AWARNING Heat exchanger oil will burn off on initial firing creating an unpleasant odor To prevent this odor from occurring more than once it is suggested that 1 A window s be opened 2 The thermostat set at highest setting 3 The furnace remain running at conditions 1 amp 2 above for 15 minutes or until odor has dissipated A CAUTION The CMA CMC furnace models are of direct vent design and do not require an air shutter adjustment air shutters are not used for proper flame characteristics Burner box access cover must always be secured with all screws in place and tightened before operating furnace AWARNING Personal injury or property damage could result from repair or service of this furnace by anyone other than a qualified heating contractor A CAUTION Label wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation A CAUTION The inducer motor mounting plate gasket and the collector box gasket must be replaced if they show any sign of having been damaged AWARNING Power must be disconnected before servicing All installations and services must be performed by qualified service personnel Il FURNACE SPECIFICATIONS MODEL INPUT IN BTUH OUTPUT IN BTUH MAIN ORIFICE NAT MAIN ORIFICE LP GAS SUPPLY PRESSURE L P MINIMUM NAT MINIMUM L P MAXIMUM NAT MAXIMUM GAS MANIFOLD PRESSURE L P NAT INTAKE SIZE IN INCHES VENT SIZE IN INCHES NO
75. or its equivalent A CAUTION Outside combustion air must not come from an area that is directly adjacent to a pool hot tub or spa Measures should be taken to prevent the entry of corrosive chemicals or vapors to the combustion and ventilation air supply Such chemicals include but are not limited to chlorinated and or fluorinated hydrocarbons such as found in refrigerants aerosol propellants dry cleaning fluids degreasers and removers Other harmful compounds may come from bleaches air fresheners or mastics Vapors from such products can form acid compounds when burned in a 23 All installations and services must be performed by qualified service personnel gas flame Should acid compounds form in your furnace it may reduce the life of the furnace H Direct Venting Through a Sidewall 1 Vent And Combustion Air Pipes Vent and combustion air pipes may pass through a maximum wall thickness of 18 inches The minimum wall thickness is 2 inches Referring to Figure 7 the maximum distance from the outer wall to the center of the elbow is 12 inches VENT OUTLET COMBUSTION INLET 12 MAX M 4 MIN An TERM INATION ELBO COMBUSTION AIR ATION COUPLING TERMINATION INSIDE STRUCTURE 2 COUPLING TERMINATION OUTSIDE STRUCTURE INSIDE STRUCTURE OUTSIDE STRUCTURE 18 2 MIN 18 M 2 MIN
76. ormed by qualified service personnel If the sensed failure is in the system external to the control the LED will flash in the following flash pause sequences to indicate failure status each flash will last approximately 0 25 seconds and each pause will last approximately 2 seconds 1 flash then pause 2 flashes then pause 3 flashes then pause 4 flashes then pause 6 flashes then pause 7 flashes then pause 8 flashes then pause Continuous flashing no pause system locked pressure switch stuck closed pressure switch stuck open open high limit switch 115 volt AC power reversed low flame sense signal check ignitor or improper grounding Flame has been sensed when no flame should be present no call for heat The LED will also flash once at power up AWARNING Power must be disconnected before servicing 52 All installations and services must be performed by qualified service personnel TROUBLESHOOTING GUIDE THE SYSTEM IS STARTED BY SETTING THE THERMOSTAT TO CALL FOR HEAT THE FOLLOWING SHOULD HELP ESTABLISH THE TYPE OF MALFUNCTION OR DEVIATION FROM THE NORMAL OPERATION TO USE THIS DIAGRAM YOU JUST NEED TO FOLLOW THE INSTRUCTIONS IN THE BOXES NOTE CHECK DIAGNOSTIC CODE THROUGH VIEW PORT PRIOR TO REMOVING ACCESS DOOR TURN THERMOSTAT TO CALL FOR HEAT DOES THERMOSTAT MAKE CONTACT No Y IS ROOM TEMPERATURE IS ROOM Yes
77. property damage injury or loss of life REMONTER TOUTES LES PI CES En cas de d montage de cet appareil tous les composants panneaux obturations colliers joints et fixations doivent tre remont s comme l origine Le non respect de cette consigne pourrait causer des dommages mat riels des blessures ou m me la mort servicing Ce compartiment doit tre ferm sauf pendant l entretien L INSTRUCTIONS SPECIALES POUR LES PROPRIETAIRES DE MAUVAISES INSTALLATIONS MODIFICATIONS ET MAINTENANCES DE MAUVAIS REGLAGES ET ENTRETIENS POURRAIENT ENDOMMAGER LA PROPRIETE BLESSER OU TUER DES PERSONNES POUR UN FONCTIONNEMENT EN TOUTE SECURITE IL EST DE LA RESPONSABILITE DU PROPRIETAIRE ET OU DE L UTILISATEUR QUE LE BR LEUR LE TUYAU DE L EVENT OU DE LA CHEMIN E L CHANGEUR DE CHALEUR ET LES COMMANDES SOIENT INSPECT S CHAQUE ANN E PAR UN CHAUFFAGISTE QUALIFI LE PROPRI TAIRE ET OU L UTILISATEUR DOIVENT AUSSI EFFECTUER DES INSPECTIONS VISUELLES P RIODIQUES POUR LES D TAILS ILS DOIVENT CONSULTER LE MANUEL D INSTRUCTIONS FOURNI AVEC LA CHAUDI RE TOUTES LES D FICIENCES DOIVENT TRE CORRIG ES IMM DIATEMENT PAR UN CHAUFFAGISTE QUALIFI NE PAS ESSAYER DE R PARER SOI M ME POUR TOUTE AIDE OU INFORMATIONS SUPPL MENTAIRES CONSULTER UN CHAUFFAGISTE QUALIFI UNE ENTREPRISE DE SERVICE O LE FOURNISSEUR DE GAZ DIAGNOSTIC CODE VIEW PORT Hazardous flue gas J 4 Read code pr
78. res should be taken to prevent the entry of corrosive chemicals or vapors to the combustion and ventilation air supply Such chemicals include but are not limited to chlorinated and or fluorinated hydrocarbons such as found in refrigerants aerosol propellants dry cleaning fluids degreasers and removers Other harmful compounds may come from bleaches air fresheners or mastics Vapors from such products can form acid compounds when burned in a gas flame Should acid compounds form in your furnace it may reduce the life of the furnace AWARNING Because of the potential of odorant fade a gas leak may not be detected by smell If this furnace is installed below grade contact your gas supplier for a gas detector AWARNING All gas piping must be leak tested methods approved by State Local and National Codes including the National Fuel Gas Code NFPA 54 ANSI Z233 1 Latest Edition A final test for gas leakage must be made after purging the gas line This test must be conducted with the unit operating and should include the furnace piping and gas valve Never use an open flame to check for a gas leak A CAUTION Care must be taken not to wet electronic components during leak test Wetting the primary ignition module may damage its circuitry and cause a hazardous situation Dry moisture from all leads and terminals if wetting occurs Wait at least 24 hours for the circuit to fully dry before energizing the burner circuit AWARNING The furnace
79. the wiring diagram c Connect the thermostat wires to the room thermostat 31 All installations and services must be performed by qualified service personnel IMPORTANT The room thermostat should be installed 4 to 5 feet above the floor on an interior wall which is relatively free from direct sources of heat sunlight or supply airflow or exposure to cold drafts from open windows and doors The nominal anticipator setting is 0 8 amperes for the CMA CMC refer to the thermostat literature for additional information Four conductor thermostat wire is recommended for 24 VAC low voltage control circuit wiring However only 2 wires are required for the furnace a heating application only Electrical Wire Maximum Recommended Diameter Thermostat Wire Length AWG Feet 24 55 22 90 20 140 18 225 Once the furnace is installed check the thermostat anticipator for proper nominal setting 1 Connect a multimeter capable of reading milliamps mA in series with the low voltage wires to the thermostat 2 Increase the thermostat setting or create a call for heat 3 Read the value of the thermostat current in milliamps 4 Adjust the heat anticipator of the thermostat to the value read by the multimeter If the heat anticipator is set too high the furnace may delay activation of a heating cycle for too long If the heat anticipator is set too low the furnace may cycle too frequently Either condi
80. tion may not provide optimal comfort to the homeowner 32 All installations and services must be performed by qualified service personnel 4 BLOWER MOTOR SPEED WIRING CM DS6N SERIES CM DVSN SERIES D Z Jo 50D36N amp CMC1 50D36N CONTROL HEAT H RED PARK PURPLE PARK BLUE COOL H CIR N YELLOW MED MED HIGH HIGH Figure 15 BLOWER DELAY SETTINGS To delay fan Set Switch turn on by 1 2 15 sec Off Off 30 sec Off On 45 sec On Off 60 sec On On To delay fan Set Switch turn off by 3 4 60 sec On On 90 sec Off On 120 sec On Off 180 sec Off Off Factory Settings For Optimal Performance 33 All installations and services must be performed by qualified service personnel CMA3 50D36 ALTERATIONS REQ D FOR DESIGN EXTERNAL STATIC PRESSURE COOLING UNIT HTG Speed Recommended CLG Speed 24 000 LOW MED LOW 30 000 LOW MED HIGH 36 000 LOW HIGH
81. tlet registers are properly adjusted and clear and your supply and return air ducts are open The circulating air blower is not moving enough air if the supply air temperature is still too high Before proceeding further turn off the power supply to the furnace and remove the front door of the unit The speed of the blower must be increased by changing the speed tap from the motor see figure 15 This is accomplished by locating the control panel attached to the blower housing and switching blower lead connected to the Heat terminal on the White Rodgers 50A65 143 control with one of the higher speed blower leads attached to a terminal marked Park Be sure to attach any unused blower leads to a terminal marked Park Replace the blower door and turn on the power supply 46 All installations and services must be performed by qualified service personnel F FURNACE CHECKOUT PROCEDURE Before any system of gas piping is finally put into service it shall be carefully tested to assure that it is gas tight as indicated in the Fuel Piping Section of this Furnace Manual NOTICE All controls on the unit should be checked for proper functioning prior to the qualified service personnel leaving the job site Specifically the following should be checked With furnace in normal heating operation check to make certain blower will start and stop automatically under control of integrated fan control 1 Check safety limit control as follows
82. ulator cap screw to obtain the required burner manifold pressure refer to the rating label for correct settings 390511 All installations and services must be performed by qualified service personnel The following safety information should be read understood and followed by the installer 1 Use only with type of gas approved for this furnace Refer to furnace rating plate 2 Do not install this furnace where it could be exposed to drafts or other wind or moisture conditions Refer to Section IV of this manual 3 Provide adequate ventilation air to the furnace space Refer to Section IV C and D of this manual 4 Connect this furnace to an approved vent system only Combustion products must be carried outdoors Refer to Section IV F thru J of this manual 5 Never test for gas leaks with an open flame Leak test methods must comply with State Local and National codes including the National Fuel Gas Code NFPA 54 ANSI 2233 1 Latest Edition 6 Always install furnace with a duct system that has an external static pressure within the allowable range referenced in specifications 7 Make sure supply air ducts are completely sealed to the furnace casing Refer to Section IV The following pages contain various warnings and cautions found throughout the Thermo Pride Gas Fired High Efficiency Furnace Manual Please read and comply with the statements below AWARNING This furnace is not to be used for temporar
83. y heating of buildings or structures under construction A CAUTION These high efficiency condensing furnaces are not certified for and shall not be vented into a standard or any type of chimney A CAUTION Negative pressure inside the closet with closet door closed and the furnace blower operating on high speed shall be no more negative than minus 0 05 inch water column AWARNING Do not obstruct any return air openings including the return grille on the furnace To do so may cause the furnace to activate the high limit and shut down All installations and services must be performed by qualified service personnel CAUTION The vent and air intake elbows must be kept away from bushes shrubs or any vegetation that may restrict the flow of flue products It must also be kept clear of any leaves weeds or other combustible materials Keep the vent hood clear of snow Avoid locating the terminals in areas where standing water or condensate drippage may be a problem AWARNING This CMA CMC furnace has been designed to be installed as a direct vent system and must have its combustion air brought in from outside the conditioned space The failure to install the vent air intake system as specified in these instructions will void the heat exchanger warranty and may result in property damage personal injury or loss of life A CAUTION Outside combustion air must not come from an area that is directly adjacent to a pool hot tub or spa Measu

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