Assessments - 2, GPA: 4
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Facilidade de uso
36154C8 and special front door in place of door furnished.) a. Attic b. Basement, utility room, etc. 4. Use with 36W, 54W, 90W, and 108W water coils. 5. Use with 48R, 60R, 90R, and 120R direct expansion coils. INSPECTION Be sure available gas supply is the same as shown on American Gas Association rating plate'. Check electric supply - voltage, phase, and frequency - to be sure that it is the same as required on the rating plate. Check to be sure that adequate power is available to handle the increased electrical load when the unit is used for cooling. Installation of the all-weather heating and cooling unit consists of the following: 1. Locating the Unit 2. Gas Piping 3. Venting 4. Electric Connections 5. Start-up and Adjustment 6. Connection with Electric Air Conditioner (when used) 7. Connection with Gas Air Conditioner (when used) 39378 D9 5/10/65 LOCATING THE UNIT When installing in conjunction with a cooling system refer to the applicable section of this instruction for additional information. Before locating the unit, refer to local codes. OUTDOOR INSTALLATION Mounting The unit design permits use of four corner posts, rails, or any other method of support sufficiently strong to accommodate the weight; however, consult local codes - particularly for roof installation. Units must be level. Clearances 1. Provide a minimum 1 inch clearance on bottom for water drainage (rain, sleet, and snow). 378 ALL WEATHER INDOOR/OUTDOOR UNIT 48 R - 378 60 R . 378 36W-378 54W-378 90R-378 120R-378 90W - 378 108W-378 Heating input Btuh 150-100,000 150-100,000 150-100,000 150-100,000 300-200,000 300-200,000 300-200,000 300-200,000 Bonnet capacity Btuh 112-75,000 112-75,000 112-75,000 112-75,000 225-150,000 225-150,000 225-150,000 225-150,000 DX Coil rating Btuh 48,000 60,000 - - 90,000 110,000 - ' - Water Coil rating Btuh — — 36,000 54,000 — — 90,000 108,000 Air flow CFM 1600 2000 1200 1800 3000 4000 3000 3600 External static In. water 0.20 0.20 0.15 0.20 0.25 0.30 0.25 0.30 Blower motor H.P. 1/2 3/4 1/2 3/4 1 1-1/2 1 1-1/2 Volts 230 230 230 230 230 230 230* 230 Phase 1 1 1 1 1 1 1 1 Cycle 60 60 60 60 60 60 60 60 FLA 4 5 4 5 7 9 7 9 Suction line In. o.d. 1-1/8 7/8 - - 1-1/8 1-3/8 - Liquid line In. o.d. 1/2 3/8 - - 5/8 5/8 _ - Inlet water line NPT H - - 1-1/4 1-1/4 — - 1-1/4 , 1-1/4 Outlet water line NPT - - 1-1/4 .........1-1/4 - - 1-1/4 1-1/4 Condensate drain In. o.d. 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 Refrigerant R 500 500 — _ 22 500 — — Filters (disposable) In. (2) 25x20x1 (2)25x20x1 (2)25x20x1 (2) 25x20x1 (4) 25x20x1 (4) 25x20x1 (4)25x20x1 (4) 25x20x1 Approx. shipping wt. Lbs. 580 600 595 605 975 985 710 995 Outdoor Installation - Clearances (cont'd) 2. Provide adequate clearance for outlet and return duct connections. 3. Clearance from combustibles: From casing, all sides and top 6" * From base........ 0" *This permits use of combustible material as support. Caution: When using rails, etc. as support, do not enclose unit so as to interfere with drainage. 4. Service clearance: Front - 24" Side - Provide adequate side clearance for filter removal. Clearance on left side for blower service; side clearance for coil service. Provide adequate clearance when air conditioner is located adjacent to unit. INDOOR INSTALLATION Mounting Unit may be set flush with floor or mounted on supports. There is no need to provide clearance under the base. Shim as required to make unit level. Clearances 1. From combustible materials: a. 0 " clearance on bottom. b. 6" clearance from casing surface; line contact allowed. c. 6 " vent and draft hood. 2. Service access: Same as for outdoor installation. COMBUSTION AND VENTILATION AIR When the furnace is installed in a confined space, but in a building otherwise having adequate infiltration from the outside, air for combustion and ventilation may be taken from the building. Two openings should be provided, each having a free area of one square inch for each 1000 Btu per hour - one located above the draft diverter relief opening and the other near the floor. When the furnace is installed in a building of unusually tight construction, air for combustion and ventilation should be obtained from outdoors or from spaces freely communicating with the outdoors. Two openings should be provided, each having a free area of one square inch for each 2000 Btu per hour -one located above the draft diverter relief opening and the other near the floor. For further information on this subject, refer to ASA Z21.30-1959, or later editions of this standard, “Installation of Gas Appliances and Gas Piping.” GAS PIPING The gas supply line should be a separate line direct from the meter to the furnace. Check local utility for recommendations concerning existing lines. Choose a supply pipe size large enough to keep the pressure loss as low as practical. Never use pipe smaller than the gas connection to the furnace. Observe local codes for all g...