Thermo Products CMA1-50N Burner User Manual
Contents
1. WARNING THIS COMPARTMENT MUST BE CLOSED 390024 All installations and services must be performed by qualified service personnel TABLE OF CONTENTS SECTION BEGINNING PAGE l SAFETY SECTION 1 I GENERAL INSTRUCTIONS AND CLEARANCES 6 Il FURNACE SPECIFICATIONS 8 IV INSTALLATION 10 A ROOF JACK 10 B STANDARD CHIMNEY 10 C FURNACE LOCATION 10 D BASE INSTALLATION 12 1 Combustible Floor Base Model 70 BASE 12 2 Cottage Base Model 01COT BASE 13 E ALCOVE INSTALLATION 14 F CLOSET INSTALLATION 15 G COMBUSTION AIR 16 H GAS PIPING 18 l ELECTRICAL WIRING 19 J INITIAL START UP 21 K ADJUSTMENT OF BTU INPUT RATE 21 L BURNER ADJUSTMENT 23 M SETTING TEMPERATURE RISE 24 N FURNACE CHECKOUT PROCEDURE 25 V INSTALLER S INSTRUCTIONS TO USER 26 VI STARTING THE UNIT 27 A SEQUENCE OF OPERATIONS 27 VI TROUBLESHOOTING 29 VIII DEALER MAINTENANCE 30 A ELECTRICAL 35 B BURNERS 35 C INDUCER BLOWER ASSEMBLY 36 D INSPECTING THE VENTING SYSTEM 36 E GASKETS SEALING MATERIALS 37 F HEAT EXCHANGER 37 G HOUSE AIR BLOWER 37 H EXTENDED SHUTDOWN 37 IX USERS INFORMATION SECTION 38 A WARNINGS amp CAUTIONS 38 B COMPONENT LOCATIONS 39 C INSPECTION AREAS 39 D FILTER LOCATION AND CLEANING 40 APPENDIX A REPLACEMENT PARTS 41 APPENDIX B WIRING DIAGRAM 43 All installations and services must be performed by qualified service personnel I GENERAL INSTRUCTIONS AND CLEARANCES NOTE READ THIS SECTION BEFOR2. 1 VESTIBULE The furnace vestibule areas or burner compartment should be inspected by removing front door of the furnace and looking for signs of excessive heat such as discoloration of components materials damaged from rust or corrosion soot or carbon build up 2 EXTERIOR OF FURNACES The furnace exterior should be inspected for signs of excessive heat such as discoloration of materials or damage from rust or corrosion 3 VENT CONNECTOR The furnace vent pipe should be inspected for signs of rust corrosion pitting or holes in the pipe Check for leakage around seams in pipe indicated by soot or condensate streaks 4 ROOF JACKS The furnace roof jack should be inspected for signs of rust or corrosion pitting or holes signs of excessive condensation or moisture leaking from roof jack D FILTER LOCATION AND CLEANING N CAUTION To avoid injury from moving part hot surfaces or electrical shock shut off the power to the furnace and allow the furnace to cool before removing furnace access door to service filter The air filter should be inspected each month and cleaned when dirty Clean the filter by soaking it in water with a mild detergent and rinsing it with clean water Allow the filter to air dry before reinstalling it in the furnace Cleaning the air filter frequently may prevent airborne contaminants from going through the furnace and depositing in the furnace duct system and interior of the building See Figure 10 in
3. 4 PLACES BURNER BOX COVER SCREW ahr pan cove BUEN BOX COVER GASKET NOTE GMD1 80 SHOWN GMD1 60 WILL DIFFER SLIGHTLY FROM WHAT IS DEPICTED ABOVE Figure 9 C INDUCER BLOWER ASSEMBLY Inspect the pressure switch and tubing connections and inspect the blower assembly for warpage deterioration and carbon or other build up If 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 D INSPECTING THE VENTING SYSTEM The venting system should be inspected during the annual maintenance check up or during each subsequent service call Check all vent pipes for restrictions due to soot or carbon build up as well as foreign matter or any materials that cause the venting system to restrict the proper venting of combustion products If a restriction is found the flue vent must be cleaned or replaced to ensure proper venting 36 All installations and services must be performed by qualified service personnel Vent pipes should also be inspected for any signs of corrosion deterioration or leakage that may cause combustion by products to infiltrate the home or indoor environment If signs of corrosion deterioration or leakage are evident the vent pipe must be replaced with a properly sized agency approved vent pipe E GASKETS SEALING MATERIALS Inspect all visible gaskets for signs of degradation especially any seals w
4. 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 70 F CONFORMS TO ANSI 221 47 CAN CGA 2 3 2006 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 390425 8 0 5059 MA 1001 OT 4815 MA CAUTION MOVING PARTS CAN CAUSE SEVERE PERSONAL INJURY FOR YOUR SAFETY VAN WA R N NG WHAT TO DO IF YOU SMELL GAS 1 DO NOT TRY TO LIGHT ANY APPLIANCE DO NOT TOUCH ANY ELECTRICAL SWITCH SPECIAL HOMEOWNERS INSTRUCTIONS IMPROPER INSTALLATION ADJUSTMENT ALTERATION SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE PERSONAL INJURY OR LOSS OF LIFE SHUT OFF FURNACE BEFORE REMOVING THIS PANEL 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 FILTER MAINTENANCE WHEN IT BECOMES e FOR SAFE OPERATION IT IS THE RESPONSIBILITY OF THE OWNER AND OR USER THAT THE BURNER CHIMNEY VENT NECESSARY TO REPLACE OR WASH PIPE HEAT EXCHANGER AND CONTROLS
5. CABINET I J 1 The return air opening into the closet is to have a minimum free area of 250 square inches refer to Figure 5 2 The return air opening may be located in the top the center or ideally the bottom of the closet door or sidewall 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 temperature limit and shutdown or it may cause asphyxiation 3 The cross sectional area of the return air grille leading into the closet when located in the floor or ceiling shall not be less than 250 square inches 15 All installations and services must be performed by qualified service personnel 4 The total free area of openings in the floor or ceiling registers serving the return air 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 any other objects 5 Materials located in the return air system must have a flame spread classification of 200 or less 6 Wiring materials located in the return air duct system must conform to Article 300 22 of the latest edition of the National Electrical Code NFPA 70 7 Gas piping shall not be located in or extend through the return air duct system 8 Refer to section G COMBUSTION AIR for additional combustion air requirements G COMBUSTION AIR CAUTION Flexibl
6. 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 WNTERTE ge ALLIED THERMO PRODUCTS LLC Pun mmal CERTIFIED POST OFFICE BOX 217 d NORTH JUDSON IN 46366 PHONE 574 896 2133 C US LISTED MG 505 ECN 5320 MA 130307 MADE IN USA All installations and services must be performed by qualified service personnel I SAFETY SECTION This page and the following two pages contain various warnings and cautions found throughout this furnace Service and Installation Manual Please read and comply with the statements on the cover and the statements below AWARNING This furnace is not to be used as a construction heater ANWARNING When testing electrical equipment always follow standard electrical procedures and precautions A WARNING The area around the furnace should be kept free and clear of combustible materials especially papers and rags AWARNING This furnace uses an automatic hot surface ignition control NEVER try to ignite gas manually ACAUTION f the temperature rise exceeds 85 F the heat exchanger may fail voiding the heat exchanger warranty resulting in property damage personal injury or loss of life AWARNING Burner adjustments must be confirmed by instrumentation Failure to use accurate or calibrated instrumentation to setup the burn
7. door louvers A CAUTION DO NOT connect a ducted return air system directly to the furnace Improper installation may create a fire hazard and damage internal equipment as well as void all manufacturers warranties 3 This furnace may be installed on combustible flooring when utilizing either the No 70 counterflow floor base for below the floor duct systems or with the cottage base for floor level air distribution See Figures 1A and 1B for depictions of the No 70 and the cottage bases 4 This furnace is listed for closet alcove or freestanding applications All applications must comply with the requirements of this manual 10 All installations and services must be performed by qualified service personnel Combustible Floor Base Model 70 BASE Figure 1A CONNECTOR DUCT 12x12x14 n Cottage Base COMBUSTION AIR DUCT Model 01COT BASE 2x7x16 Figure 1B Coil Cabinet Model CE111S CE211T Figure 1C can 19 7 8 CE111S CE211T 11 All installations and services must be performed by qualified service personnel D BASE INSTALLATION 1 Combustible Floor Base Model 70 BASE 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 Cut a combustion air duct o
8. manual for further instructions on the combustion air termination and connections For additional information refer instructions provided with the coil cabinet E ALCOVE INSTALLATION In this application a minimum of 18 inches of clearance must be provided to the front of the unit Refer to Figure 4 Alcove installations must use the No 70 mobile home base Note access to diagnostic view port Refer to section G COMBUSTION AIR for additional combustion air requirements Figure 4 PROVIDE REMOVABLE PANEL ABOVE ALCOVE TO ACCESS FLUE DIAGNOSTIC VIEW PORT NEAREST WALL OR PARTITION 14 QU N TOP INCH CLEARANCE 0 INCHES SIDE CLEARANCE TO FURNACE CABINET All installations and services must be performed by qualified service personnel F CLOSET INSTALLATION A WARNING HAZARD OF ASPHYXIATION A suction effect will occur when the furnace is operating inside the closet with the closet door closed For proper operation the furnace blower shall create no more than a 0 05 inch water column pressure differential between the closet and the adjoining space PROVIDE MIN 250 SQ INCH OPEN FREE AREA IN FRONT OR SIDE WALL OR w IN CLOSET DOOR LOCATED AT TOP CENTER OR a BOTTOM N A CLOSET DOOR YS Figure 5 we INCH TOP CLEARANCE I l I O INCHES SIDE CLEARANCE TO FURNACE
9. 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 Sizing and installation of fuel lines must be in accordance with federal state and local regulations A qualified installer or service person must install all gas piping and perform all required testing Piping from the natural gas meter to the furnace shall be in accordance with requirements of the local gas utility Piping from the propane tank to the furnace must follow the recommendations of the gas supplier In the absence of local codes governing gas piping selection and installation follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 1999 or latest edition A readily accessible manual gas shutoff valve design certified for the applicable gas with a non displaceable rotor member shall be installed within six 6 feet of the furnace A pipe 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 corrosive effects of LP gases Pipe dope or sealant 18 All installations and services must be performed by qualified service personnel design certified to be resistant to the action of the LP gases should be used on all threaded joints The burner is setup to be piped to the gas supply through the left hand side of the furnace For service purposes
10. the appliance Set thermostat to desired setting and if equipped set the operating mode to HEAT 10 If appliance will not operate follow the instructions To Turn Off Gas To Appliance and call your service technician or gas supplier BONA oun oon GAS CONTROL VALVE GAS CONTROL VALVE oss doge L DHL Ed 1 S ps fit z wen TOGGLE SWITCH TOGGLE SWITCH EN SO TOTURNOFFGASTOAPPLIANCE ME Set thermostat to lowest setting and if equipped set the operating mode to COOL or OFF If service is to be performed turn off all electric power to the appliance To turn off gas control valve remove the burner compartment cover 4 Move the gas control switch to the OFF position Replace the burner compartment cover A N e a 390540 ao ROTATION 390097 W Vid 3018528 MODEL NO SERIAL NO 00000000 FOR INSTALLATION IN MANUFACTURED HOME DATE OF MANUFACTURE 11 NOV 2011 FOR INSTALLATION AS CENTRAL FURNACE SPECIAL TYPE FOR SINGLE STORY DWELLING ORIFICE LINE PRESSURE IN W C MANIFOLD FUEL TYPE BTUH INPUT DRILL SIZE MIN MAX PRESSURE IN W C NAT 60 000 438 5 5 14 0 3 5 INCHES W C L P 60 000 52 11 0 14 0 10 0 INCHES W C APPLIANCE IS SHIPPED FROM FACTORY WITH 438 ORIFICE
11. this section for the location of the return air filter 40 All installations and services must be performed by qualified service personnel APPENDIX A REPLACEMENT PARTS 32 HOSE CLAMP 2 REQ D NOT SHOWN 34 LP CONVERSION KIT NOT SHOWN GMD1 80 SHOWN GMD1 60 WILL DIFFER SLIGHTLY FROM WHAT IS DEPICTED ABOVE NOTE G e 7 i mm La Ll LL 4 41 All installations and services must be performed by qualified service personnel PARTS UNIT GMDI 60N GMD1 80N PARTS UNIT GMDI 60N GMD1 80N ITEM DESCRIPTION PART NO QTY PART NO QTY ITEM DESCRIPTION PART NO QTY PART NO QTY 1 BASE 18188 1 18188 1 36 BLOWER SUB ASSEMBLY 50084174 80054137 1 2 HEAT EXCHANGER 38694 1 38191 1 37 DIRECT DRIVE BLOWER w WHEEL S00S4142 S00S4143 3 SIDE CASING LEFT 619002 1 619002 1 38 BLOWER WHEEL 340096 340083 4 SIDE CASING RIGHT 619003 1 619003 1 38 MOTOR w CAPACITOR AOPS7655 AOPS7655 5 TOP 618973 1 618973 1 40 MOTOR MOUNTING BRACKET AOPS 6 0 AOPS 6 70 6 FILTER RETAINER ROD 4809 480
12. 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 01 COT BASE The O1COT BASE cottage base Figure 1B is required for a freestanding cottage base installation The cottage base is designed to permit the installation of a 6 inch x 14 inch register in each of the two side panels and the front panel 13 All installations and services must be performed by qualified service personnel AN CAUTION A permanent opening with a minimum of 50 square inches of unobstructed infiltration free area for ventilation and combustion air must be provided to the interior of the structure Additional make up air may need to be supplied to the interior of the structure to compensate for exhaust fans appliances or vents which consume air from the interior of the structure Refer to the assembly installation instructions included with OM1COT BASE cottage base for additional information 3 Coil Cabinet CE111S CE211T The CE111S CE211T coil cabinet figure 1C is for applications requiring air conditioning The coil cabinet is designed to have the combustion air brought in from the bottom thru a flexible hose supplied with the cabinet Refer to section G Combustion air of this
13. 70 1999 or latest edition and all local codes having jurisdiction 2 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 c 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 19 All installations and services must be performed by qualified service personnel f Reinstall and secure the junction box cover with the original mounting screws 3 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 the wiring diagram c Connect the thermostat wires to the room thermostat 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 GMD refer to the thermostat literature for additional information Five conductor thermostat wire is recommended for 24 VAC low voltage control circuit wiring How ever only 2 wires are required f
14. 9 41 CAPACITOR INSULATING BOOT 350036 350036 E BAFFLE SIDE 8701 8195 42 CAPACITOR MOUNTING BRACKET 18000 18000 8 BAFFLE SIDE 8 02 8186 45 CAPACITOR 350075 350073 9 BLOWER PAN 8190 8190 44 AUX LIMIT SWITCH 350891 350891 0 FLEX HOSE 1239 1239 45 CONTROL PANEL SUB ASS Y 50054403 50054403 1 FRONT DOOR 618929 618929 46 INTEGRATED CONTROL 550836 350836 2 FLUE COVER TOP 8711 8293 47 TRANSFORMER 24v 350464 350464 3 FLUE COVER 8710 8201 48 WRE HARNESS BLOWER 550781 350781 4 DRAW COLLAR 624100 624100 49 WIRE HARNESS VESTIBULE 450489 450489 5 FLUE CONNECTOR ASSEMBLY 38708 38230 50 WIRE HARNESS SUPPLY 550893 450893 6 BAFFLE BLOWER PAN 18703 18328 51 WIRE HARNESS GROUND 350892 350892 7 DOOR SWITCH 350262 350262 52 BURNER DRAWER SUB ASSEMBLY 50058211 50058209 8 CA 320905 3520905 53 MANIFOLD 580726 380670 9 CAM LATCH ASSEMBLY 320904 320904 54 GAS VALVE 380639 380639 20 FILTER 570192 570192 55 NAT ORIFICE 580042 2 380617 3 21 REAR CASING 619004 619004 56 GROMMET 360434 360434 22 PRESSURE SWITCH 350483 350483 57 BURNER BRACKET 18692 16016 25 HIGH LIMIT SWITCH 350495 350495 58 BUSHING REDUCER 520806 320806 24 DUCER w GASKET A0PS7432 A0PS7432 59 BURNER TUBE 380595 3 380595 3 25 DUCER GASKET 330181 330181 60 BURNER HOLDER 18693 16015 26 IGNITOR 380650 380650 61 BURNER BOX SUB ASSEMBLY 50058212 50058210 27 SENSOR 350759 350759 62 BURNER BOX COVER 18690 18053 28 GASKET
15. BURNER BOX 330331 550189 63 SILICONE SPONGE GASKET 1 2 330141 23 350141 28 5 29 64 SIGHT GLASS GASKET 550135 5350135 30 INLET PLATE 320807 320807 65 SIGHT GLASS 15887 15887 31 GASKET FLUE 3530330 330187 66 BURNER BOX TOP 18689 18193 32 HOSE CLAMP 300322 2 500322 2 67 AIR INLET ASSEMBLY 45908 45908 NAT CONVERSION KIT AOPS7697 AOPS7686 68 INLET FLANGE GASKET 330158 330158 34 LP CONVERSION KIT AOPS7696 AOPS7685 69 BURNER BOX WRAP 18691 18194 35 BLOCKOFF 18698 18054 70 ROLL OUT SWITCH 450485 450485 42 All installations and services must be performed by qualified service personnel APPENDIX B WIRING DIAGRAM AXA T1041N09 TVNH3INI NO SNONILNNOI crL G9vOS M M TOMINOO NOLLIN I QNnON2 HLY T div SO LY
16. C LED LAMP RESET BY INTERRUPTING POWER TO CONTROL FOR MORE THAN ONE SECOND IF LED STAYS ON CONTINUOUSLY REPLACE INTEGRATED CONTROL CHECK THE INTEGRATED CONTROL DIAGNOSTIC LED LAMP RESET BY INTERRUPTING POWER TO CONTROL FOR MORE THAN ONE SECOND IF LED STAYS ON CONTINUOUSLY REPLACE INTEGRATED CONTROL Yes Yes IS THERE LINE VOLTAGE ACROSS INDUCER POWER No TERMINALS IND amp IND N g AT THE INTEGRATED CONTROL Yes CHECK WIRING TO INDUCER AND IF OK REPLACE INDUCER ASSEMBLY y oe IS THERE LINE VOLTAGE SURFACE Me ACROSS HOT SURFACE No No X GNITOR TERMINALS 9 gt IGNITOR ENERGIZE shy a qA TAE AND GLOW INTEGRATED CONTROL Yes CHECK WIRING TO HOT SURFACE IGNITOR AND T IF OK REPLACE HOT SURFACE IGNITOR ASSEMLBY Y CHECK ACROSS MV AFTER HOT TERMINALS ON INTEGRATED SURFACE IGNITOR No CONTROL FOR 24 VOLTS DURING WARM UP DOES gt THE4 SECOND FLAME PROVING GAS VALVE OPEN PERIOD AFTER IGNITOR WARM UP IS THERE 24 VOLTS Yes Yes CHECK WIRING TO GAS VALVE AND IF OK Y REPLACE GAS VALVE No SAME AS ABOVE 32 All installations and services must be performed by qualified service personnel Yes AFTER GAS VALVE is MEASURE MANIFOLD ADJUST TO 3 5 WC FOR OPENS DO THE No gt PRESSURE IS No
17. DO IF YOU SMELL GAS Do not try to light any appliance Do 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 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 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 bod o S EN oPERATNGINSTRUCTONS WWW STOP Read the safety information above on this label Set the thermostat to the lowest setting Turn off all electric power to the appliance This appliance is equipped with a hot surface igniter that automatically lights the burner Do not try to light the burner by hand Move the gas control switch to the OFF position 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 B in the safety information above on this label If you don t smell gas go to the next step Move the gas control switch to the ON position Turn on all electric power to
18. E STARTING INSTALLATION 1 o Oo This furnace is equipped with orifices for operation with natural gas For conversion to propane gas see instructions in Gas Conversion Section of this manual Any reference to L P or Propane gas in this manual any other labels or markings on this furnace is to be construed to be propane HD 5 A commercial grade of liquefied petroleum gases composed of a minimum of 90 percent liquid propane C8H8 The selection of a furnace heating capacity for a proposed 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 Itis recommended that a commercial available CO alarm be installed in conjunction with any fossil fuel burning appliance The CO alarm shall be installed according to the alarm manufacturer s 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 Monoxide Alarming Devises CSA 6 19 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 provisio
19. KOUT IF FLAME IS DETECTED THEN LOST THE CONTROL BOARD WILL REPEAT THE INITIAL IGNITION SEQUENCE FOR A TOTAL OF SIX RECYCLES AFTER SIX UNSUCCESSFUL RECYCLE ATTEMPTS THE CONTROL WILL GO INTO SYSTEM LOCKOUT 28 IF SYSTEM IS IN LOCKOUT THE MODULE WILL RESET ITSELF AFTER 60 MINUTES 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 All installations and services must be performed by qualified service personnel Vil TROUBLESHOOTING THIS SECTION IS ONLY TO BE PERFORMED BY TRAINED QUALIFIED SERVICE PERSONNEL AND NOT BY THE FURNACE OWNER NOTICE BEFORE TROUBLESHOOTING FAMILIARIZE YOURSELF WITH THE START UP AND CHECKOUT PROCEDURE ALL INSTALLATION AND SERVICES MUST BE PERFORMED BY QUALIFIED HEATING CONTRACTORS When testing electrical equipment always follow standard electrical procedures and precautions Note check diagnostic code through view port prior to removal of door 1 Check for line voltage 110 120VAC to the furnace If there is no line voltage applied to the furnace check that disconnecting switch is on fuses or circuit breakers have not blown or tripped 2 Make sure thermostat is calling for heat 3 Check for adequate fuel supply and pressure Are all the fuel
20. NATURAL GAS OR 10 0 WC BURNERS IGNITE PRESSURE ADEQUATE FOR PROPANE GAS Yes CHECK IGNITOR VOLTAGE DURING No CORRECT LINE 20 SECOND WARM UP gt VOLTAGE PROBLEM IT SHOULD BE AT l LEAST 105 VOLTS Yes Yes SCONES No REPOSITION TO CORE ee CORRECT LOCATION Y DO BURNERS STAY No EK FINE OF PEAME CHECK Yes LIT PAST PROOF DOES THE INTEGRATED CONTROL ENERGIZE THE CIRCULATING AIR BLOWER AFTER THE 45 SECOND TIME DELAY No Yes DOES THE CIRCULATING AIR FAN COME ON WHEN ENERGIZED No Yes PROVING CIRCUIT m BLOWER TERMINALS r CHECK ACROSS THE CIRCULATING AIR No REPLACE THE INTEGRATED CONTROL CIR N amp HEAT FOR PROPER VOLTAGE CONFIRM IF EITHER BLOWER WHEEL IS RUBBING AGAINST DOES BLOWER No HOUSING OR MOTOR SPIN FREELY SHAFT IS SPINNING FREELY AND REPAIR OR REPLACE AS NECESARRY Yes Y IS CAPACITOR Yes REPLACE MOTOR WORKING PROPERLY No REPLACE CAPACITOR 33 All installations and services must be performed by qualified service personnel DOES SYSTEM RUN UNTIL THERMOSTAT IS SATISFIED Yes Y DOES BURNER SHUT OFF SATISFIED Yes Y DOES THE CIRCULATING AIR BLOWER TURN OFF AFTER THERMOSTAT IS SATISFIED WITHIN 120 SECONDS Yes Y No No
21. NOIVdDONY 1v3H 13S 1N3S3Nd 38 CINCHS 3HV1 ON N3HM Q3SN3S JWI HSVli SNONILNNOO GNNOYD W3dOMdWI YO YOLIND 23H S3HSYM 8 2 N GOL 1931 LY JO ONUWY 3NnIVH3dMGL V ONIAVH TWWINALYN me zeas amy HON SST L ME A Hi mex cm ae 3SS3AG S DNE ROG n Pan I 9NIBIM M01094 si ANAL NO NddO HOLMS 3HnivMHdiGl QS o 3 1 N3dO MOMS H3IWS 3HnSSJHd S3HSYl anM OH Co Haus ansa X N OL NONNO GNY 17 OL LOH 193NNOJ I 035019 xOnlS HOLIMS FNSSIYdA S3HSYM Z S 1003901 WAISAS HSV L SOUSONOVIG ESEO 4 i i du TH dT jon 1 AN nb Tos z I 3mg um a aH 4 3mg AMI 2d ea E MOSNIS INVIA IvLSONSHL ui El LWT 9NrI009 P m JINN xw 100 708 HOH 8 SNIIV3H i NOSE zu uu p ging ey oH M WOIE NROSG m i NOTTA MS 55389 mn 3 EE V YOUNA WS Sd l 3 p NS SSaud i REELS m o NW 3 AW INVA L ISONUHL 1009 91H SQN Svo NOLDWINOD S Y Sq t A WN01d0 ACA A WE m hid Ee Ee LAL ALAC HL hie J JJ 1 FRR IL v1 G9v05 m pe eu pene ae d m SYN SONILIIS AYOLOWI a sadd 340 340 93s 08l 5n pm eed Ole Oo k AINSI 3ORMUIN 440 No 93s 02 eae O2939MA xt i J CEN NO 340 33S 06 asf No No 08s 09 zh N9I N9I JOU tH SH 08 4HO NYNL ed HE Q0 HOLIMS 13S Nyd AY130 OL elo T i 9 DS NO NO 03S 09 N FR OTEK i 340 NO 938 She ane I ROTER VE m Ca wo 440 2a 0 Me N 3AJX B LN 440 440 038 SL aOndNl H QN u N O a zE T i AW S Go Mf 8 NO NYNL i m ar M CRI COVOS HOLIMS 13S N
22. PTIONAL INTAKE HOOD OR SCHEDULE 20 90 PVC ELBOW GALVANIZED DUCT OR SCHEDULE 20 PVC OPTIONAL TRANSITION BOOT wN SCREEN P N AOPS8419 Figure 6 17 All installations and services must be performed by qualified service personnel H GAS PIPING ANWARNING Because of the potential of the odorant to 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 With the gas piping pressurized all gas piping connections must be leak tested using a strong soap and water solution 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 ACAUTION DO NOT wet electronic components during the leak test Wetting electronic components may damage 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 system ANWARNING 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 13 9 inches W G The furnace can be isolated from the gas supply by closing the manual gas shutoff valve serving the appliance at test pressures equal to or less than 1 2 PSIG or 13 9 inches W G ANWARNING Copper and brass tubing and fittings except tin lined shall
23. RUPTION THE SILICON NITRIDE SYSTEM SHUTS OFF IGNITOR IGNITOR RESTARTS WHEN WARM UP IS 20 SECONDS POWER IS RESTORED Y START TRIAL AFTER IGNITOR WARM UP FOR IGNITION THE GAS VALVE IS ENERGIZED TO OPEN FLAME MUST BE IF FLAME IS NOT DETECTED WITHIN DETECTED THE GAS VALVE 4 SECONDS IF FLAME IS DE ENERGIZED THE IS DETECTED THE IGNITOR IS TURNED OFF AND DELAY TO FAN ON THE CONTROL BOARD CONTROL TIME BEGINS 45 SECONDS GOES INTO RETRY SEQUENCE Y 27 All installations and services must be performed by qualified service personnel MAIN BURNER OPERATION Y CALL FOR HEAT SATISFIED Y END OF CYCLE AFTER DELAY TO FAN ON PERIOD ENDS CIRCULATING AIR FAN IS ENERGIZED AT HEATING SPEED THE OPTIONAL ELECTRONIC AIR CLEANER AND HUMIDIFIER ARE ENERGIZED WHEN THERMOSTAT IS SATISFIED CONTACTS OPEN AND THE GAS VALVE IS DE ENERGIZED AFTER PROOF OF FLAME LOSS INDUCER STARTS 5 SECOND POST SURGE AND OPTIONAL HUMIDIFIER IS DE ENERGIZED THE DELAY TO FAN OFF PERIOD BEGINS 180 SECONDS AFTER THE DELAY TO FAN OFF PERIOD ENDS THE CIRCULATING AIR FAN AND OPTIONAL ELECTRONIC AIR CLEANER ARE DE ENERGIZED THE RETRY SEQUENCE PROVIDES A 60 SECOND WAIT BEFORE IGNITION RETRY RETRY IS ATTEMPTED WITH AN ADDITIONAL 10 SECONDS OF IGNITOR WARM UP TIME IF IGNITION ATTEMPT IS UNSUCCESSFUL ONE MORE RETRY WILL BE MADE BEFORE THE CONTROL BOARD GOES INTO SYSTEM LOC
24. S FOR NATURAL GAS FOR L P GAS CONVERSION REFER TO INSTRUCTION MANUAL PROVIDED WITH THIS APPLIANCE INSTALLATION APPLIANCE MAY BE INSTALLED IN A 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 O INCH AT BACK O INCH AT SIDES 6 INCHES FROM FLUE PIPE 1 INCH FROM TOP OF APPLIANCE TO CEILING 1 INCH FROM PLENUM SIDES AND WARM AIR DUCT WITHIN 3 FEET OF APPLIANCE AND O INCH FROM ROOF JACK 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 MODEL NO VP 1 VENT PIPE AND A MODEL NO SRJ x OR TRJ x ROOF JACK OR TYPE B GAS VENT SEE INSTRUCTION MANUAL FOR DETAILS ON INSTALLATION OF BASE VENT PIPE AND ROOF JACK 290425 A 0 5148 MA 1001 0T 4815 MA THERMO PRODUCTS LLC BOX 217 NORTH JUDSON IN 46366 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 8
25. SHOULD BE INSPECTED EVERY YEAR BY A QUALIFIED HEATING CONTRACTOR FILTER REMOVE THE DIRTY FILTER FROM THE RACKS PROVIDED AND WASH OR THE OWNER AND OR USER SHOULD ALSO CONDUCT PERIODIC VISUAL INSPECTIONS REFER TO THE USERS INFORMATION REPLACE WITH IDENTICAL NEW FILTERS MANUAL PROVIDED WITH THIS FURNACE FOR DETAILS FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE ANY DEFICIENCIES NOTED MUST BE CORRECTED AT ONCE BY A QUALIFIED HEATING CONTRACTOR THIS UNIT MUST BE INSTALLED AND SERVICED DO NOT ATTEMPT TO MAKE REPAIRS YOURSELF QU NUT REMOVESTRS LABEL BY A QUALIFIED CONTRACTOR ONLY FOR ASSISTANCE OR ADDITIONAL INFORMATION CONSULT A QUALIFIED INSTALLER SERVICE AGENCY OR THE GAS SUPPLIER OPERATING INSTRUCTIONS ARE LOCATED INSIDE APPLIANCE NEAR BURNER ASSEMBLY 380231 THIS FURNACE IS EQUIPPED FOR NATURALGAS This furnace is equipped with orifices sized for operation with natural gas For conversion to propane gas see CONVERSION instructions NATURAL PROPANE 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 prov
26. TYPE FUSE OR HACR BREAKER RATING 15 AMPS TOTAL RATED CURRENT AMPS 7 15 GMD1 NOMINAL HEAT ANTICIPATOR SETTING 0 8 mA GMD1 DIMENSIONS amp WEIGHTS CABINET WIDTH 18 IN DEPTH 25 3 4 IN HEIGHT 57 IN NO 70 MOBILE HOME BASE WIDTH 18 5 16 IN DEPTH 24 IN HEIGHT 4 IN WARM AIR DUCT WIDTH 12 IN DEPTH 12 IN COTTAGE BASE WIDTH 18 3 16 IN DEPTH 24 IN HEIGHT 14 IN FILTER QUANTITY amp SIZE 1 18 x 24 APPROXIMATE SHIPPING WEIGHT 165 LBS PRODUCT LISTED UNDER ETL FILE NUMBER All installations and services must be performed by qualified service personnel BLOWER DATA GMD1 60 MANUFACTURER MORRISON PRODUCTS INC BLOWER MODEL 10 7 DIRECT DRIVE NOMINAL MOTOR POWER OUTPUT HORSEPOWER 1 3 TYPICAL AIRFLOW SPECIFIED EXTERNAL STATIC PRESSURES SCFM IN W G ESP INW C 02 0 5 LOW SPEED 759 694 MEDIUM LOW SPEED HO oe MEDIUM HIGH eee 1096 934 HIGH SPEED 1207 1029 GMD1 80 MANUFACTURER MORRISON PRODUCTS INC BLOWER MODEL 10 9 DIRECT DRIVE NOMINAL MOTOR POWER OUTPUT HORSEPOWER 1 3 TYPICAL AIRFLOW SPECIFIED EXTERNAL STATIC PRESSURES SCFM IN W G ESP IN W C 0 2 0 5 LOW SPEED 712 640 MEDIUM LOW SPEED oie dan MEDIUM HIGH SPEED 1100 886 HIGH SPEED 1258 1003 ALL SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE All installations and services must be perfo
27. Thermo Pride lt GAS FIRED FURNACE DOWN FLOW amp DIRECT VENT SEALED COMBUSTION gt MODELS GMD1 60N and GMD1 80N INSTALLATION AND SERVICE MANUAL For installation in 1 Manufactured Homes 2 Modular Homes Buildings 3 Site Constructed Residential Single Story Dwellings NWARNING 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 not try 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 LO SOON ARIA dG LEE TELL LLL LLL A WARNING If 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 A WARNING 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 system that has been underwater PLEASE READ
28. WHEN THERMOSTAT IS TROUBLESHOOTING COMPLETE IS LED LIGHT ON INTEGRATED CONTROL FLASHING CHECK ALL No WIRING FOR LOOSE CONNECTIONS Yes AND CORRECT IF NECESSARY CHECK FOR SHORT IN WIRE TO THERMOSTAT IF LED FLASHES 1 FLASH THEN PAUSE SYSTEM LOCKOUT 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 PRESSURE SWITCH STUCK CLOSED PRESSURE SWITCH STUCK OPEN OPEN LIMIT SWITCH OR ROLLOUT 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 CHECK COMPLETE SYSTEM OUT LED LIGHT STAYS ON CONTINUOUSLY COMPLETE FAILURE REPLACE INTEGRATED CONTROL 34 All installations and services must be performed by qualified service personnel Vill DEALER MAINTENANCE A qualified heating contractor should perform the following maintenance procedures at the beginning of each heating season Correct any deficiencies at once A WARNING Personal injury or property damage could result from repair or service of this furnace by anyone other than a qualified heating contractor Only the homeowner user routine maintenance described in the Users Information Manual may be performe
29. 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 high air 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 until the pressure switch functions shutting off the main burners 4 Block the inlet gradually until pressure switch functions shutting off the main burners IMPORTANT Remove flue or air inlet blockages when done 25 All installations and services must be performed by qualified service personnel V 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 must be kept along with instructions for any accessories in the plastic pouch near the furnace The location 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 The sequence of operation of the furnace The correct operation and maintenance of the appliance as outlined in the Users Information section of this manual That fail
30. 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 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 be clear blue and almost transparent in color See Figure 8 NOTE It is not unusual to have mostly blue flames with yellow or orange tips visible in the tube for propane gas 23 All installations and services must be performed by qualified service personnel FLAME BURNE MANIF OLD Figure 8 M SETTING TEMPERATURE RISE The GMD1 60N and GMD1 80N is designed and wired at the factory for a heating blower speed that should result in an approximate temperature rise of 70 F The blower motor is wired on low speed for heating mode of the GMD1 60N The blower motor is wired on medium low speed for heating mode of the GMD1 80N The temperature rise through the furnace may vary depending on the duct system elevation heating value etc for each installation After 10 to 15 minutes of continuous operation the temperature rise through the furnace must fall within a range of 55 F to 85 F If the outlet or supply duct temperature is too high check to make sure the return air filter is clean the return air registers are free from obstruction the outlet
31. d by the user A WARNING To avoid injury from moving parts shut off the power to the furnace before removing blower compartment door CAUTION Label wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation A ELECTRICAL 1 Check all wiring for loose connections and any signs of damage or unusual wear 2 Check for correct voltage at the furnace when operating 3 Check amp draw on blower motor and inducer motor to assure they are not exceeding nameplate amp rating 4 Check for correct operation and proper settings if manually adjustable of all controls Shut off gas and disconnect power before continuing B 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 If necessary the burners assembly can be removed by taking out the two screws one on each bracket on top of burner box and removing the burner manifold assembly See Fig 9 Assembly must be pulled amp tilted down in order to remove from box If necessary the individual tubes can be cleaned out using compressed air to blow out the individual tubes Care must be taken not to damage the igniter 35 All installations and services must be performed by qualified service personnel MAIN BURNER ORIFICE 3 PLACES BURNER BOX MANIFOLD MANIFOLD PRESSURE TAP MANIFOLD GROMMET MANIFOLD SCREW
32. e spiral or corrugated duct is not recommended due to the relatively high pressure drop associated with air movement through this type of passageway The furnace requires the proper amount of combustion airflow through the combustion air intake to combust the fuel cleanly and efficiently An inadequate combustion air supply can result in unsafe and erratic operation of the burner sooting of the combustion chamber and the heat exchanger and possibly offensive fuel odors Refer to chapter 5 3 of the National Fuel Gas Code ANSI Z223 1 NFPA 54 1999 or latest edition for application specific combustion air requirements The preferred location of the outside combustion air intake terminal e g an optional stainless steel intake hood part no AOPS7402 is through the side of the structure skirting or enclosure An acceptable alternate location is under the structure in the skirted or crawlspace area providing a minimum of 50 square inches of free area exists around the perimeter for outside combustion air to be drawn through The opening of the termination must be at least 7 inches below the top of the floor The 70 base coil cabinet is shipped with a combustion air duct that must be installed in the bottom of the base enclosure before the furnace is installed This 2 inch by 7 inch duct is shipped in two pieces High temperature silicone sealant should be applied to both vertical seams before it is snapped together with all four flanges on th
33. e one full revolution The 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 78 678 BTU Input 93 80 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 GMD1 80N model and the input rate is 78 678 BTU hr The input rate would be acceptable because it was within 2 of the listed input of 80 000 c 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 shown in figure 8 GAS PRESSURE CHART FOR ALL GMD1 60 and GMD1 80 MODEL FURNACES SUPPLY PRESSURE MANIFOLD PRESSURE MAX 14 WC MIN 5 5 WC MAX 14 WC MIN 11 WC NAT 3 5 3 WC PROPANE 10 0 3 WC TABLE 2 22 All installations and services must be performed by qualified service personnel 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 decr
34. e same end High temperature silicone must be applied to the flanges The combustion air duct can then be inserted through the opening in the floor base model no 70 When the combustion air duct has been inserted completely secure the duct to the combustion adapter with self tapping sheet metal screws refer to Figure 6 Make certain that the flanges duct and adapter are completely sealed to the burner enclosure base with high temperature silicone caulk A 3 inch round to 7 inch x 2 1 4 inch rectangular adapter 16 All installations and services must be performed by qualified service personnel plate is supplied with the furnace for adapting the 3 inch round flex combustion air duct to the 2 inch x 7 inch combustion air duct Recommended materials for the combustion air duct are smooth round galvanized steel duct or schedule 20 PVC pipe The maximum intake duct length allowed is equivalent to 40 feet of straight duct Reduce this length by 6 feet for the intake hood and each 90 degree elbow used and by 3 feet for each 45 degree elbow used the combustion air duct Optional combustion air a 4 round duct may be used by connecting a 3 x 4 reducer to the 3 flex duct supplied with the furnace FURNACE a BURNER BOX AIR HOSE CL FLEX HOSE ee HOSE CLAMP ADAPTER AIR INLET OPENING SS COMBUSTION AIR DUCT E FLOOR Ce 70 BASE Ler TRANSITION MOBILE HOME SKIRTING O
35. eased by adjusting the manifold pressure Remove the 1 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 CAUTION 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 L BURNER ADJUSTMENT A CAUTION The GMD1 60 and GMD1 80 furnace models utilize an in shot burner design that does not require an air shutter
36. ection points 4 Check flue pipe combustion air inlet and all joints for tightness and to make sure there is no blockage 5 Make sure air filter is in place 6 Make sure the outside vent and air intakes are installed according to instructions and are free from blockage 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 See Section IV H of these instructions on the installation of gas piping AWARNING It may be necessary to purge the air out of the gas line for initial start up of the furnace after installation A qualified heating contractor should do this 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 Propane gas is especially dangerous because the specific gravity of propane 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 be set at highest setting 3 The furnace remains running at conditions 1 amp 2 for 30 minutes or until odor has dissipated K ADJUSTMENT OF HEAT INPUT RATE The orifices for this furnace were sized 1 for natural gas having a heating
37. er may result in reduced efficiency sooting and or the production of hazardous carbon monoxide gas ANWARNING Any attempt to relocate safety controls or replace safety controls with a control that is not approved or incompatible may result in personal injury substantial property damage or death A WARNING If you do not follow these instructions exactly a fire or explosion may result causing personal injury loss of life or property damage A WARNING HAZARD OF ASPHYXIATION Negative pressure inside the closet with closet door closed and the furnace blower operating shall be no more negative than minus 0 05 inch water column A WARNING 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 or it may cause asphyxiation ANWARNING 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 A WARNING All gas pipe connections must be leak tested using a strong soap and water solution with the gas turned on Any leaks must be repaired immediately All installations and services must be performed by qualified service personnel after turning off the gas supply A final test for gas leakage must be made after purging the gas line ACAUTION DO NOT wet electronic components during the leak test Wetting electronic components
38. here is a problem with the furnace pertaining to the venting system or any other related problem immediately contact a qualified service agency If a service agency is not available contact your fuel supplier A WARNING Personal injury or property damage could result from major repair or service of this furnace by anyone other than a qualified contractor The user should only perform the routine maintenance described in the user section of this manual AWARNING The area around the furnace should be kept free and clear of combustible materials especially papers and rags ACAUTION Do not block or obstruct air openings on the furnace casing Do not block or obstruct air openings communicating within the area in which the furnace is installed ACAUTION Do not allow the outside air intake to be blocked or obstructed by vegetation ice snow or any other materials AWARNING Do not use this furnace if any part has been underwater Immediately call a qualified service agency to inspect the furnace and to replace any part of the electrical or control system which has been underwater A WARNING Should overheating occur or the fuel supply fail to shut off shut off the manual fuel supply valve to the furnace before shutting off the electrical supply 38 All installations and services must be performed by qualified service personnel B COMPONENT LOCATIONS The following diagram shows a typical furnace installation and typical pos
39. hich were removed as part of the inspection Replace any suspect gaskets F 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 G HOUSE AIR BLOWER Check and clean the blower wheel housing and compartment with a vacuum Check the motor nameplate and follow the motor manufacturers instructions for lubrication if required IMPORTANT Some motors are permanently lubricated and should not be oiled See motor nameplate for specific instructions H EXTENDED SHUTDOWN If this furnace is shut down or off for an extended period of time several steps can be taken to help insure a smooth and reliable start ON SHUT DOWN 1 Close the gas supply shutoff valve s 2 Turn the furnace power switch off and disconnect electrical power to the unit ON START UP 1 Have the heating system and furnace inspected and started by a qualified service person 2 Set the room thermostat above room temperature 3 Open all shutoff valves in the gas supply line 4 Turn on the main power at the disconnecting switch and at the furnace power switch to start the inducer 5 Follow the BURNER OPERATION AND ADJUSTMENT procedure in Section J 37 All installations and services must be performed by qualified service personnel IX USER INFORMATION SECTION A WARNINGS AND CAUTIONS AWARNING lf you suspect t
40. ided 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 T 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 regulator cap screw to obtain the required burner manifold pressure refer to the rating label for correct settings 390511 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 380512 KEEP CLOSED WHEN LIANCE IS IN OPERATION 390400 T Maa i WHEN SERVICING
41. it is recommended the gas union be located inside the furnace A drip leg must be used on both propane and natural gas installations immediately upstream of the furnace in order to trap oil condensate and other impurities which might otherwise lodge in the gas valve or plug the main 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 drip leg s may void the manufacturer s limited warranty on the furnace For natural gas the maximum supply pressure is 14 0 in W G and the minimum supply pressure for purposes of input adjustment is 5 5 in W G For propane gas the maximum supply pressure is 14 0 in W G and the minimum supply pressure for purposes of input adjustment is 11 0 in W G l ELECTRICAL WIRING ACAUTION When testing electrical equipment always follow standard electrical procedures and precautions All electrical wiring must be installed in strict accordance with local ordinances and codes In the absence of local ordinances and codes all electrical wiring must conform to the requirements of the National Electric Code ANSI NFPA 70 1999 or latest edition 1 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 grounded in accordance with the provisions of the National Electrical Code ANSI NFPA
42. ition of the components referenced in these instructions FLUE AUXILLIARY LIMIT SWITCH RETURN AIR he FILTER LOCATED BEHIND DOOR BLOWER DOOR SWITCH CONTROL PANEL EU al INDUCER HIGH LIMIT SWITCH PRESSURE SWITCH GAS VALVE SENSOR IGNITER ROLL OUT SWITCH BURNER BOX VESTIBULE FRONT DOOR FRONT VIEW REMOVED GMD1 UNIT W FRONT DOOR NOTE REMOVED GMD1 80 SHOWN GMD1 60 WILL DIFFER SLIGHTLY FROM WHAT IS DEPICTED ABOVE Figure 10 C INSPECTION AREAS IMPORTANT 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 39 All installations and services must be performed by qualified service personnel
43. may damage 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 system A WARNING 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 0 inches W G The furnace can be isolated from the gas supply by closing its manual shut off valve at test pressures equal to or less than 1 2 PSIG or 14 0 inches W G ANWARNING 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 If you suspect there is a problem with the furnace the venting system or any other related problem immediately contact a qualified service agency If a service agency is not available contact your fuel supplier AWARNING Personal injury or property damage could result from major repair or service of this furnace by anyone other than a qualified contractor Only the routine maintenance described in the user section of this manual should be performed by the user ACAUTION Do not block or obstruct air openings on the furnace or air openings communicating with the area in which the furnace is installed ACAUTION Do not allow the outside air intake to be blocked or obstructed by vegetation ice sno
44. mbustible material material that is not capable of being ignited and burned such as material consisting entirely of or a combination of steel iron brick tiles concrete slate asbestos glass and plaster This heating appliance must be installed with clearances to combustible material surfaces of not less than the minimum distances given below Also allow ample clearances for servicing the furnace for easy access to the air filter blower assembly burner assembly controls and vent connections MODELS GMD1 60N and GMD1 80N CLOSET ALCOVE FRONT BACK SIDES ROOF JACK VENT CONNECTOR TOP PLENUM SIDES TOP AND SIDES OF DUCT BOTTOM OF DUCT All installations and services must be performed by qualified service personnel Ill FURNACE SPECIFICATIONS MODEL GMD1 60 GMD1 80 HEAT INPUT RATE BTUH 60 000 80 000 HEATING CAPACITY BTUH 49 000 65 000 BURNER ORIFICE NAT GAS MM 38 2 45 BURNER ORIFICE PROP GAS DMS 52 53 GAS SUPPLY PRESSURE IN W G MINIMUM REQUIRED PROPANE 11 11 NATURAL 5 5 5 5 MAXIMUM ALLOWED PROPANE 14 0 14 0 NATURAL 14 0 14 0 GAS MANIFOLD PRESSURE IN W G PROPANE 10 4 0 3 10 0 3 NATURAL 3 5 0 3 3 5 0 3 VENT PIPE SIZE INCHES 4 4 DESIGN TEMPERATURE RISE F 70 70 SEASONAL EFFICIENCY AFUE 95 82 81 AFUE INCLUDES STEADY STATE THERMAL EFFICIENCY AND OFF CYCLE LOSSES ELECTRICAL RATINGS AND SETTINGS ELECTRICAL SUPPLY 115 VAC 60HZ 1 PHASE MAXIMUM TIME DELAY
45. must be closed with a sealing method suitable to the application conditions and temperatures e g high temperature silicone caulk and or aluminum tape 12 All installations and services must be performed by qualified service personnel If the combustion air passageway cannot terminate outside of the skirting or enclosure a permanent opening with a minimum of 50 square inches of unobstructed infiltration free area for ventilation air must be provided for adequate combustion This permanent opening must be located no less than 12 inches from the bottom of the enclosure or skirting TOP VEW ASSEMBLED ALTERNATE BENT TABS SECURING DUCT CONNECTOR DUCT CONNECTOR TO DISTRUBUTION DUCT W ALTERNATE TABS BENT UP TAB DUCT OPENING DISTRUBUTION DUCT SHEET METAL SCREW 4 REQUIRED 1 EACH SIDE ATTACHING Z DUCT CONNECTOR Ju E TO BASE T so FLOOR yi r 0 BASE I FLOOR JOIST CONNECTOR DUCT DISTRIBUTION DUCT gt DISTRIBUTION DUCT gt 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 flanges 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
46. ns of one or more of the following standards Federal Manufactured Home Constructions amp Safety Standard HUD Total 24 Part 280 American National Standard ANSI 119 2 NFPA 501C for installations of all recreational vehicles American National Standard ANSI Z223 1 NFPA 54 for installation of all gas fired furnaces American National Standard Electric Code ANSI C1 NFPA 70 for installation of all electrical field wiring The gas fired furnace has been investigated under the ANSI Z 21 47 CAN CGA 22 3 2001 CENTRAL FURNACE test standard This gas fired unit is listed by Intertek Testing Services and described as For installation as central furnace special type for single story dwelling All installations and services must be performed by qualified service personnel A WARNING The area around the furnace must be kept free and clear of combustible materials especially papers and rags AWARNING This furnace is not to be used as a construction heater 6 Definitions of combustible and non combustible materials as presented in the 1999 version of the National Fuel Gas Code ANSI Z223 1 1999 NFPA 70 1999 are as follows a Combustible material materials made of or surfaced with wood compressed paper plant fibers or other materials that are capable of being ignited and burned Such material shall be considered combustible even though flame proofed fire retardant treated or plastered b Non co
47. or the furnace a heating application only i I Maximum Recommended Electrical Wire 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 1 Increase the thermostat setting or create a call for heat 2 Read the value of the thermostat current in milliamps 3 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 condition may not provide optimal comfort to the homeowner 20 All installations and services must be performed by qualified service personnel J INITIAL START UP This furnace does not have a pilot lt 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 proper hook up Tighten any loose connections 2 Using a soap solution leak test gas piping connections 3 Check all tubing connections to the pressure switch inducer burner box and gas valve and make sure they are connected firmly at all their conn
48. pening in the floor 1 8 inch larger than the template opening REAR WALL OF CLOSET OR ALCOVE REAR WALL OF CLOSET OR ALCOVE i x a E gt r IL u 9 CONNECTOR DUCT E FLOOR CUTOUT CONNECTION 72 CONNECTOR POINT DUCT 1 l SS S lt 3 gt 1 8 FUEL LINE L ENTRY SE T FLOOR CUTOUT COMBUSTION AIR DUCT BASE BOTTOM PANEL TEMPLATE UNIT TOP VIEW TOP VIEW Figure 2 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 Insert and secure the combustion air duct Put the base top assembly in place see Figure 3 A CAUTION A combustion air duct must be used If the underside of the mobile home is skirted or enclosed e g enclosed in a crawlspace the combustion air intake should exit through the skirting or enclosure if at all possible All joints and seams of supply ducts and combustion air ducts
49. registers are properly adjusted and clear and the 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 blower door The speed of the blower must be increased by changing the speed tap from the motor see wiring diagram This is accomplished by locating the control panel attached to the blower housing and switching the blower lead which should be 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 24 All installations and services must be performed by qualified service personnel N 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 section IV H Gas Piping of this 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
50. rmed by qualified service personnel IV INSTALLATION A ROOF JACK The roof jack assembly and accessories must be listed by a nationally recognized testing agency for the appropriate heating fuel The roof jack assembly must be installed according to the vent manufacturer s instructions prior to the furnace installation Refer to Figure 2 for flue location on furnace Adapters for pitched roofs as well as extended barrel length roof jacks are available from other suppliers All vent seams and connections must be sealed with high temperature silicone caulk B STANDARD CHIMNEY When installed as a central furnace special type for single story dwelling venting into a metal vent system approved by a nationally recognized testing agency for the appropriate heating fuel type is permitted Lined masonry chimneys are acceptable when sized appropriately The minimum chimney size should equivalent to the inside free area of the 4 inch diameter vent collar exiting the furnace or 12 5 square inches Maximum chimney sizes and acceptable installation practices are referenced in the following publication When installing the GMD1 80N refer to Appendix G of the latest edition of the installation standard NFPA 54 National Fuel Gas Code C FURNACE LOCATION 1 For best performance locate the furnace so that it is centralized with respect to the duct system 2 This furnace is only intended for installation with free air return through the furnace
51. sensed when No pause no flame should be present No call for heat The LED will also flash once at power up 30 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 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 Yes No IS ROOM TEMPERATURE No TUBE No TURN T STAT BELOW THERMOSTAT rm ABOVE SETTING ABOVE 2 SETTING 90 DEGREES F ROOM TEMP Yes Vok COOL THE THERMOSTAT Y IS THE TRANSFORMER TO THE THERMOSTAT ye Yes REPLACE THERMOSTAT IS INTERNAL DAMAGE N CHECK INPUT PRESENT ON THE L 9 l POWER SERVICE TRANSFORMER SWITCH AND FUSES Yes REPLACE TRANSFORMER IS THE INDUCER No BLOWER OPERATING Yes IS THERE 24 VOLTS CHECK FOR ACROSS TH amp TR No CONTINUITY AT THE INTEGRATED amp PROPER CONTROL CONNECTIONS Yes 3l All installations and services must be performed by qualified service personnel CHECK THE INTEGRATED CONTROL DIAGNOSTI
52. shutoff valves open 4 To assist you in troubleshooting this furnace it is equipped with an integrated ignition control with diagnostics These diagnostics evaluate what malfunction the control system has experienced and will activate a flashing light on the control in different sequences to help pinpoint the failure 29 All installations and services must be performed by qualified service personnel DIAGNOSTIC FEATURES AWARNING Power must be disconnected before servicing The 50A65 143 control continuously monitors its own operation and the operation of the system If a failure occurs the LED will indicate a failure code as shown below 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 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 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 igniter or improper grounding Continuous flashing Flame has been
53. ure to maintain and operate this furnace in accordance with these instructions could result in hazardous conditions bodily injury and property damage and may void the limited warranty on the furnace Review with and encourage the user to read the label reproductions and all warnings and instructions outlined on the front cover and in sections Il and Ill of this manual and in the Users Information section of this manual Recommend the user has a qualified heating contractor inspect the furnace at the start of each heating season Inform the user of the frequency of inspection required for reach item in the User Information Section of this manual Should the furnace not operate after installation note diagnostic code through view port prior to removing door 26 All installations and services must be performed by qualified service personnel VI STARTING THE UNIT A SEQUENCE OF OPERATIONS CONTINUOUS SAFE OPERATION CHECK IF FLAME AT ANY TIME THE SIMULATION CONDITION PRESENT OR ROLL OUT GAS VALVE IS SWITCH OPENS SYSTEM ENERGIZES INDUCER NOT ENERGIZED FAN FOR 15 SECONDS AND CIRCULATOR BLOWER AT 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 INTER
54. vJ AVT3U OL om l pN TUNE SNOLISOd HOLIMS NOILdO a TAN CWNOldo H WOH H NNJX H 2V3 H IY3H o H ANH 28 S e HANT avd oBYd H71000 0 HOW I i i yore Pal NONWOO LIHR aoa 4 HOH MOTA EU H 1009 ES ES ri d be EL 3H 2 TONINO Q3lvHON3INI I WO1 Q33 SI 09 L0N9 yva S XN 4 ChL c9v0G b Huis M04 3348 91H CHM ANOLOWS a x SION a 444 TA BE 4 3svd 1 2H 09 A Sl 5 N n N H Avada NOLLOJNNOO 3SvHd L 7H 09 A SLL OUVIN3HOS 33Q00V1 S3lHd3S LONS VWI 1918193413 VIN ETOS N23 ZSS QM 43
55. 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 rating label 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 the input to the burner be reduced 4 096 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 80 000 21 All installations and services must be performed by qualified service personnel BTU at sea level must be reduced to a firing rate of 64 000 80 000 x 80 64 000 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 may supply you with the correct orifice sizing information To check the heat input rate of your natural gas furnace allow the unit to operate for 10 to 15 minutes and proceed as follows a 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 b With all other gas appliances turned off and using a stopwatch clock the time required for the small dial on the gas meter to mak
56. w or any other materials AWARNING Do not use this furnace if any part has been underwater Immediately call a qualified service agency to inspect the furnace and to replace any part of the electrical or control system which has been underwater A WARNING Should overheating occur or the gas supply fail to shut off shut off the manual gas supply valve to the furnace before shutting off the electrical supply All installations and services must be performed by qualified service personnel This page and the following page contain reproductions of the various warning and instruction labels placed on the Thermo Pride Gas Furnace Please read and comply with the contents of these labels SHOULD THIS UNIT BE DISASSEMBLED ALL COM PONENTS PANELS BLOCK OFFS COLLARS GASKETS AND FASTENERS MUST BE REAS SEMBLED AS ORIGINALLY FACTORY PRODUCED 390056 HMMM ron YOUR SAFETY READ BEFORE OPERATING EN WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life 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 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
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