Natural Gas and Propane Gas High Efficiency (Condensing) Warm Air Furnace
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GTHB NATURAL GAS AND PROPANE GAS HIGH EFFICIENCY (CONDENSING) WARM AIR FURNACE INSTALLATION, OPERATION & MAINTENANCE MANUAL ECR International 2201 Dwyer Avenue • Utica • New York • 13504 • USA An ISO 9001-2000 Certified Company R www.ecrinternational.com P/N# 240005603, Rev. H [11/2009] GTHB WARM AIR FURNACE IMPORTANT: THIS MANUAL MUST BE KEPT NEAR THE FURNACE FOR FUTURE REFERENCE!! R 2 GTHB WARM AIR FURNACE 1 - Warnings And Safety Symbols ..........................................................................................................................4 2 - Furnace Dimensions And Clearance To Combustibles ....................................................................................6 3 - Installation Requirements ................................................................................................................................7 4 - Furnace Components ........................................................................................................................................8 5 - Furnace Sizing ....................................................................................................................................................9 6 - Location Of Unit .............................................................................................................................................. 10 7 - Combustible Clearances ................................................................................................................................. 12 8 - Duct work ........................................................................................................................................................ 12 9 - Ventilation And Combustion Air .................................................................................................................... 13 10 - Venting And Combustion Air Piping ........................................................................................................... 14 11 - Non-Direct Vent Furnace Installations (Using Indoor Combustion Air) ................................................... 15 12 - Determining Combustion Air ....................................................................................................................... 15 13 - Venting Guidelines ...................................................................................................................................... 18 14 - Terminations ................................................................................................................................................. 21 15 - Vent Termination Clearances ....................................................................................................................... 26 16 - Upflow Option ............................................................................................................................................... 29 18 - Horizontal Left Option ................................................................................................................................. 31 19 - Downflow Option ......................................................................................................................................... 32 20 - Condensate Drains ....................................................................................................................................... 33 21 - Gas Supply And Piping ................................................................................................................................. 34 22 - Conversions ................................................................................................................................................... 36 23 - Electrical Specifications ................................................................................................................................ 38 24 - Low Voltage Wiring ...................................................................................................................................... 40 25 - Optional Accessories (Field Supplied/Installed) ......................................................................................... 40 26 - Startup Procedures ....................................................................................................................................... 40 27 - Air Flow .......................................................................................................................................................... 42 28 - Maintenance And Troubleshooting ............................................................................................................ 46 30 - Wiring Diagram For PSC Motor .................................................................................................................... 52 31 - Venting Checklist .......................................................................................................................................... 53 32 - Replacement Parts List ................................................................................................................................. 54 1 - WarninGS AND SAFETY SYMBOLS DANGER CAUTION ! Indicates an imminently hazardous situation which, if not ! Indicates an imminently hazardous situation which, if not avoided, WILL result in death, serious injury or substantial avoided, may result in injury or property damage. property damage. WARNING NOTICE ! Indicates an imminently hazardous situation which, if not Indicates information which should be followed to ensure avoided, may result in death, serious injury or substantial proper installation and operation. property damage. 3 1 - WarninGS AND SAFETY SYMBOLS Introduction WARNING This 93% efficient gas fired (condensing) furnace is an upflow, downflow, horizontal left and right warm air furnace suitable for FOR YOUR SAFETY residential and light commercial heating applications from 40,000 to Do not store or use gasoline or other flammable vapors 120,000 BTU/Hr. and liquids, or other combustible materials in the vicinity The 93% efficient furnace series is CSA design certified as a Category of this or any other appliance. IV indirect or direct vent central forced air furnace. When installed as a direct vent furnace, all combustion air is supplied to the furnace WHAT TO DO IF YOU SMELL GAS burners through the air intake system. (See Section 9, “Ventilation Do not try to light any appliance. and Combustion Air.”) Do not touch any electrical switch; do not use any phone All models may be fired by natural gas or LP gas (propane) and may in your building. be field converted from natural gas to LP gas. Immediately call your gas supplier from a neighbor’s The furnace is shipped completely assembled except for the drain phone, or a cellular phone from a location well away from trap assembly and the venting. Please inspect for damage when the ! the building. Follow the gas supplier’s instructions. furnace is unpacked. If you cannot reach your gas supplier, call the fire depart- ment. IMPORTANT: Read the following instructions COMPLETELY Do not re-enter the building until authorized to do so by before installing!! the gas supplier or the fire department. WARNING Improper installation, adjustment, alteration, service or maintenance can cause injury, property damage or loss of ! If the information in these instructions is not followed exactly, a fire or explosion may result, causing property life. Refer to this manual. damage, personal injury or loss of life. Installation and service must be performed by a qualified installer, service agency or the gas supplier. WARNING ! This product must be installed by a licensed plumber or Safety Rules gas fitter when installed within the commonwealth of Mas- sachusetts. 1. Use this furnace only with type of gas approved for this furnace. Refer to the furnace rating plate. 2. Install this furnace only in dry indoor locations (protected from WARNING weather). These instructions are intended as an aid to qualified ser- 3. Provide adequate combustion and ventilation air to the furnace vice personnel for proper installation, adjustment and op- space as specified in Section 9 of this manual, “Ventilation and eration of this furnace. Read these instructions thoroughly Combustion Air.” ! before attempting installation or operation. Failure to fol- 4. Combustion products must be discharged outdoors. Connect low these instructions may result in improper installation, this furnace to an approved vent system only, as specified in adjustment, service or maintenance, possibly resulting in Section 10 of this manual, “Venting and Combustion Air Pip- fire, electrical shock, carbon monoxide poisoning, explo- ing.” sion, property damage, personal injury or death. 5. Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections as specified in Section 21 of this manual, “Gas Supply and Piping.” 6. Always install furnace to operate within the furnace’s intended temperature-rise range with a duct system, which has an external static pressure within the allowable range, as specified in Sections 5, 8, and 27 of this manual, “Furnace Sizing,” “Duct work,” and “Airflow.” 4 1 - WarninGS AND SAFETY SYMBOLS 7. When a furnace is installed so that the supply ducts carry air WARNING circulated by the furnace to areas outside the space contain- ing the furnace, the return air shall also be handled by duct(s) Do not install this furnace in a mobile