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INSTALLATION MANUAL
RESIDENTIAL GAS FURNACE
WITH PSC MOTOR
EFFICIENCY
RATING
MODELS:
CERTIFIED
TM8M/TMLM*MP, YM8M/YMLM*MP,
ISO 9001
Certified Quality
CM8M/CMLM*MP, LM8M/LMLM*MP
Management System
(80% Modulating Multi-position / Low NOx)
LIST OF SECTIONS
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . 20
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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368261-UIM-A-0508 • Refer to the unit rating plate for the furnace model number, and SPECIFIC SAFETY RULES AND PRECAUTIONS then see the dimensions page of this instruction for return air ple- 1. Only Natural gas or Propane (LP) gas are approved for use with num dimensions in Figure 14, "Dimensions". The plenum must be this furnace. installed according to the instructions. 2. Install this furnace only in a location and position as specified in • Provide clearances from combustible materials as li
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368261-UIM-A-0508 These instructions cover minimum requirements and conform to exist- ing national standards and safety codes. In some instances these instructions exceed certain local codes and ordinances, especially those who have not kept up with changing residential and non-HUD The furnace area must not be used as a broom closet or for any other storage purposes, as a fire hazard may be created. Never modular home construction practices. These instructions are required store items such as th
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368261-UIM-A-0508 2. Do not allow return air temperature to be below 55º F (13° C) for FURNACE LOCATION AND CLEARANCES extended periods. To do so may cause condensation to occur in The furnace shall be located using the following guidelines: the main heat exchanger, leading to premature heat exchanger 1. Where a minimum amount of air intake/vent piping and elbows will failure. be required. Clearances for access/service: 2. As centralized with the air distribution as possible. Ample clearances sh
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368261-UIM-A-0508 DUCT FLANGES COIL/FURNACE ASSEMBLY - MC/FC/PC SERIES COILS Four flanges are provided to attach ductwork to the furnace. These flanges are rotated down for shipment. In order to use the flanges, remove the screw holding an individual flange, rotate the flange so it is in the upward position and reinstall the screw then repeat this for all 4 flanges. If the flanges are not used, they should remain in the rotated down posi- tion as shipped. For duct attachment, Factory if needed.
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Air flow 368261-UIM-A-0508 For horizontal left hand applications no conversion is required to an MC CRITICAL COIL PROJECTION coil when used with a downflow/horizontal furnace. A mounting plate, The coil assembly must be located in the duct such that a minimum dis- supplied with every coil should always be installed on the side desig- tance is maintained between the top of the coil and the top of the duct. nated as top side. See Figures 4 & 5. Refer to Table 2, "Coil Projection Dimensions - PC Se
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368261-UIM-A-0508 BOTTOM RETURN AND ATTIC INSTALLATIONS Bottom return applications normally pull return air through a base plat- form or return air plenum. Be sure the return platform structure or return When a furnace is installed in an attic or other insulated space, air plenum is suitable to support the weight of the furnace. keep all insulating materials at least 12 inches (30.5 cm) away from The internal bottom panel must be removed for this application. furnace and burner combustion air op
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368261-UIM-A-0508 Vent RIGHT SIDE LEFT SIDE FRONT Electrical Outlet Entry Vent Outlet Electrical Entry Gas Pipe Gas Pipe Entry 33” Entry 23” Thermostat Thermostat Wiring Wiring 14” A 28.5” 1.5” 1” 29.5” (For Cladded door add appoximately an additional .75”) Vent .5” 24.38” .5” Outlet .5” B B C .5” 20” 24.25” SUPPLY END RETURN END FIGURE 14: Dimensions Table 3: Cabinet and Duct Dimensions Approximate Cabinet Dimensions (Inches) Nominal BTUH (kW) Cabinet Operating Weights 3 Input Size CFM (m /mi
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368261-UIM-A-0508 HORIZONTAL APPLICATION External Manual Horizontal Filters Shutoff Valve To Gas To Gas Supply Supply All filters and mounting provision must be field supplied. All installa- tions must have a filter installed. Any branch duct (rectangular or round duct) attached to the plenum must attach to the vertical plenum before the filter. The use of straps Grounded Joint Union and / or supports is required to support the weight of the external filter Drip Leg may be Installed box. Inside
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368261-UIM-A-0508 Example – You have a 100,000 BTU/H furnace installed at an elevation HIGH ALTITUDE NATURAL GAS ORIFICE of 6,000 feet. You clock the gas meter and find that the furnace is actu- CONVERSION ally fired at 64,000 BTU/H. Divide 64,000 by 100,000, which gives 0.64 The National Fuel Gas Code requires that gas appliances installed (64%). The closest number to 64% in the left-hand “Actual Rate” col- above 2,000 feet elevation have their inputs de-rated by 4% per 1,000 umn is 65. Read a
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368261-UIM-A-0508 SUPPLY VOLTAGE CONNECTIONS LOW VOLTAGE CONTROL WIRING CONNECTIONS Install the field-supplied thermostat by following the instructions that come with the thermostat. With the thermostat set in the OFF position and the main electrical source disconnected, connect the thermostat Junction wiring from the wiring connections on the thermostat to the terminal Box board on the ignition module, as shown in Figures 20-25, Thermostat Connect ground Charts. Electronic thermostats may requi
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368261-UIM-A-0508 For additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document available online at www.upgnet.com in the Product Catalog Section. ID MODELS TM(8,L)M YM(8,L)M CM(8,L)M THERMOSTAT LM(8,L)M SINGLE STAGE MODULATING SINGLE STAGE *PP11C70224 AIR FURNACE AIR CONDITIONER CONDITIONER MODULATING 1 FURNACE CONTROL C C 24 – Volt Common 24 – Volt Common Y1 Y Y Y Single Full Stage Compressor Comp Comp resso rr e C ssor ontactor Stage Compressor RH R 24
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368261-UIM-A-0508 ID MODELS TM(8,L)M YM(8,L)M CM(8,L)M THERMOSTAT THERMOSTAT LM(8,L)M TWO STAGE MODULATING *DN22U00124 *PP32U70124 AIR FURNACE CONDITIONER MODULATING 1 FURNACE CONTROL C C C C 24 – Volt Common 24 – Volt Common 24 – Volt Common 24 – Volt Common Y1 Y1 Y1 Y1 Single First Stage Compressor First Stage Compressor First Stage Compressor Stage Compressor R R R R 24 – Volt Hot 24 – Volt Hot 24 – Volt Hot 24 – Volt Hot (Heat XFMR) (Heat XFMR) G G G Fan Fan Fan E/W1 E/W1 W First Stage Heat
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368261-UIM-A-0508 ID MODELS TM(8,L)M YM(8,L)M CM(8,L)M THERMOSTAT LM(8,L)M TWO STAGE MODULATING *PP11C70224 AIR FURNACE CONDITIONER MODULATING 1 FURNACE CONTROL C C 24 – Volt Common 24 – Volt Common Y1 Y Y1 Single Full Stage Compressor First Stage Compressor Stage Compressor RH R R 24 – Volt Hot 24 – Volt Hot 24 – Volt Hot (Heat XFMR) G G Fan Fan W Modulating Heat RC Y/Y2 24 – Volt Hot Second or Full Stage Compressor (Cool XFMR) O Reversing Valve Energized in Cool LO COMP Single Stage Compresso
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368261-UIM-A-0508 ID MODELS OD MODELS E*R* *RHS TM(8,L)M E*ZD HP* YM(8,L)M CM(8,L)M E*B* *HGD THERMOSTAT THERMOSTAT THERMOSTAT LM(8,L)M *BP21H50124 *BN21H00124 MODULATING SINGLE STAGE *DP32H70124 *DN22U00124 *DP21H40124 FURNACE HEAT PUMP *DN21H00124 MODULATING 2 DEMAND DEFROST 1 FURNACE CONTROL CONTROL C C C 24 – Volt Common 24 – Volt Common 24 – Volt Common Y1 Y1 Y Single First Stage Compressor Compressor Stage Compressor R R R 24 – Volt Hot 24 – Volt Hot 24 – Volt Hot G G Fan Fan E W W1/66(out
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368261-UIM-A-0508 ID MODELS OD MODELS TM(8,L)M YZB YM(8,L)M YMB CM(8,L)M H*3 THERMOSTAT THERMOSTAT THERMOSTAT LM(8,L)M *BP21H50124 *BN21H00124 MODULATING SINGLE STAGE *DN22U00124 *DP32H70124 *DP21H40124 FURNACE HEAT PUMP *DN21H00124 YORKGUARD VI MODULATING 2 1 CONTROL FURNACE CONTROL C C C C C 24 – Volt Common 24 – Volt Common 24 – Volt Common 24 – Volt Common 24 – Volt Common Y1 Y1 Y1 Y1 Y1 Single Single First Stage Compressor First Stage Compressor First Stage Compressor Stage Compressor Stage
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368261-UIM-A-0508 ID MODELS OD MODELS TM(8,L)M YZE YM(8,L)M YZH CM(8,L)M H*5 THERMOSTAT THERMOSTAT LM(8,L)M H*8 *DN22H00124 MODULATING TWO STAGE *PP32U70124 *DP22U70124 FURNACE HEAT PUMP YORKGUARD VI MODULATING 2 1 CONTROL FURNACE CONTROL C C C C 24 – Volt Common 24 – Volt Common 24 – Volt Common 24 – Volt Common Y1 Y1 Y Y1 Single Single First Stage Compressor First Stage Compressor Stage Compressor Stage Compressor R R R R 24 – Volt Hot 24 – Volt Hot 24 – Volt Hot 24 – Volt Hot (Heat XFMR) G G
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368261-UIM-A-0508 The furnace shall be connected to a type B vent connector, and ACCESSORY CONNECTIONS shall be connected to a type B vent only. The furnace shall not be The furnace control will allow power-switching control of various acces- connected to a chimney flue serving a separate appliance sories. designed to burn solid fuel. Single-wall vent pipe is not allowed. ELECTRONIC AIR CLEANER CONNECTION It is recommended that the appliance is installed in a location where the Two 1/4” (0.64 c
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368261-UIM-A-0508 3 An unconfined space is not less than 50 cu.ft (1.42 m ) per 1,000 Btu/ hr (0.2928 kW) input rating for all of the appliances installed in that area. When a Category I furnace is removed or replaced, the original Rooms communicating directly with the space containing the appli- venting system may no longer be correctly sized to properly vent ances are considered part of the unconfined space, if openings are fur- the attached appliances. nished with openings or louvers. An impr
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368261-UIM-A-0508 2. One permanent openings, commencing within 12 in (30.5 mm)of Vent and Supply (Outside) Air Safety Check Procedure the top of the enclosure shall be permitted where the equipment For Category I furnaces, vent installations shall be in accordance with has clearances of at least 1 in (2.54 cm) from the sides and back Parts 7 and 11 of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, and 6 in (15.24 cm) from the front of the appliance. The opening and or Section 7 and Appendix B
