Thermo Products CMA2-75N, CMA1-50N Vi. Installers Instructions To User, Vii. Dealer Maintenance

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VI. INSTALLER'S INSTRUCTIONS TO USER:

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 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.

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.

VII. 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.

VII. DEALER MAINTENANCEManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual background : Personal injury or property damage could result from repair or service of this furnace by anyone other than a qualified heating contractor.

Manual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual background : To avoid injury from moving parts, shut off the power to the furnace before removing blower compartment door.

Manual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual background : Label wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

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Contents GAS FIRED HIGH EFFICIENCY FURNACE INSTALLATION AND SERVICE MANUALFOR YOUR SAFETY DOWN FLOW & DIRECT VENT SEALED COMBUSTIONTABLE OF CONTENTS SECTIONI. SAFETY INFORMATION Page Page 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 1.A windows be opened MODEL II. FURNACE SPECIFICATIONS - CMA SERIESDIMENSIONS GAS SUPPLY PRESSUREINSTALLATION PARTS PACKAGE COMBUSTIBLE MATERIAL.” COMBUSTIBLE MATERIAL NON-COMBUSTIBLEMATERIALIV. GENERAL INSTALLATION A.FURNACE LOCATION MODELS CMATable Combustible Floor Base Model: 70-BASE Figure 1A Coil CabinetFigure 1B Cottage Base Model: 01COT-BASE Figure 1C B. BASE INSTALLATION 1. Combustible Floor Base Model: 70 BASEFigure Figure C. ALCOVE INSTALLATION 2. Cottage Base Model: 01COT BASEFigure D. CLOSET INSTALLATION FigureE. FUEL PIPING F.GENERAL VENTING REQUIREMENTS MAXIMUM VENT LENGTH TableFigure 6. CMA*-75SHOWN H. Direct Venting Through a Sidewall 1. Vent And Combustion Air Pipes2. Exhaust Vent Termination Elbow Sidewall Venting Page 4. Vent Terminal Location Guidelines Terminations 5.Secure plate to roof Figure FigureFigure K.CONDENSATE DRAIN LINE AND TRAP ASSEMBLY 3.Connection Of Room Thermostat Wires Figure L.ELECTRICAL WIRING2.Connection Of Power Supply Wires 1. Electrical Branch Supply CircuitElectrical Wire Diameter AWG 24 22 20 18 4. BLOWER MOTOR SPEED WIRING Figure Static CMA1-50Speed Tap \ PressureStatic CMA2-75Speed Tap \ Pressure5. FIELD WIRING AND REPLACING WIRING V.STARTING THE UNIT A. SEQUENCE OF OPERATIONS MAIN BURNER OPERATION CALL FOR HEAT SATISFIED B.INITIAL START UP OPERATING INSTRUCTIONSC.ADJUSTMENT OF BTU INPUT RATE GAS PRESSURE CHART FOR CMA* MODEL FURNACES D.BURNER ADJUSTMENTE.SETTING TEMPERATURE RISE FigureF.FURNACE CHECKOUT PROCEDURE VI. INSTALLERS INSTRUCTIONS TO USER VII. DEALER MAINTENANCEA.ELECTRICAL 2.CONDENSATE LINE/TRAP ASSEMBLY4. INDUCER BLOWER ASSEMBLY B.GENERAL INSPECTIONC.HEAT EXCHANGER 1.CLEANING THE COIL AIR SIDE5. GASKETS/SEALING MATERIALS D.HOUSE AIR BLOWERVIII. TROUBLESHOOTING FILTER MAINTENANCE PROCEDUREFILTER REPLACEMENT DIAGNOSTIC FEATURESThe LED will also flash once at power-up TROUBLESHOOTING GUIDE AT THE INTEGRATED CONTROL? Yes AFTER GAS VALVE OPENS, DO THE BURNERS IGNITE? DOES SYSTEM RUN UNTIL THERMOSTAT IS SATISFIED? IF LED LIGHT FLASHES APPENDIX – A REPLACEMENT PARTS Page APPENDIX – B WIRING DIAGRAM