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n0il u , Sizes 024 thru 060 PACKAGED HEAT PUMPS & 542D060 NOTE: Installation must conform to the guidelines presented in these unit Installation Instructions. Read and become familiar with these instructions before starting installation. Models 542D and 542E Packaged Heat Pumps are fully self: contained combination heating/cooling units designed for outdoor installation. Model 542E may be installed either on a rooftop or ground level slab. Model 542D is used in conjunction with an accessory roof mounting curb and incorporates a down-discharge/return-air plenum as an integral part of the unit. These packaged heat pumps are factory-charged and sealed. Installation is easy—simply connect condensate drain, air ducts, high- and low-voltage wiring, and install a field-supplied air filter in the return-air ductwork (except for Model 542D which has factory-supplied high-capacity air filters) to obtain heating during the heating season, cooling and dehumidification during the cooling season, and filtering of the conditioned space. All units can be connected into existing duct systems that are properly sized and designed to handle an airflow of 400 to 450 ffl/min per each 12,000 Btuh of unit capacity. Accessory UL-listed, field-installed, supplemental electric heat packages are available in a variety of KW and voltage options. These electric resistance heaters mount inside the unit blower compartment. Important-Read Before Installing 1. Check all local and other applicable codes for information concerning proximity to property lines, height above roof, obstructions, or other special installation requirements. 2. Make certain that power supply available (volts, hertz, and phase) corresponds to that specified on unit rating plate. 3. Check electrical supply provided by utility to be sure that service capacity is sufficient to handle load imposed by unit being installed. 4. Refer to the 542D or 542E dimensional drawing for locations of electrical inlets, condensate drain, duct connections, and required clearances before setting unit in place. GENERAL Models 542D and 542E Packaged Heat Pumps have been designed and tested in accordance with ARI Standard 240-77 and 270-75, and are UL-listed. These instructions contain the following sections: I. Moving and Setting Unit in Place II. Condensate and Defrost Disposal III. Duct Connections IV. Electrical Connections V. Preparing Unit for Startup Cancels: New 40542DP6-A 12/15/79 Figure 1—Mode! 542E A79110 Я Щ III y lu A79111 Figure 2—Model 542D060 Mounted On Accessory Roof Mounting Curb VI. Refrigerant Leaks VII. Startup and Adjustments VIII. Sequence of Operation IX. Care and Maintenance I. MOVING AND SETTING UNIT IN PLACE CAUTION: Pjvc ■aution.' mlist bf taken to prevent damage when nio\ing the unit. The unit inti^l remain in an upright position during all rigging and moving uperatinns. He sure to protect the lop and sides of the unit by using spreaders when rigging the unit to be lifted. Model ii +20 must he rigged for lifting as shown in Figure 7. Model .i42E must be ringed for lifting shown in Figure N. The unit must be installed level for proper condensate drainage. Be sure that the ground level pad, field-fabricated support, or accessory roof mounting curb is level before setting the unit in place. When selecting an installation site, try to locate the unit on the side opposite the prevailing wind to assure proper operation of the defrost cycle and to avoid snow drifts that could block the outdoor coil. Be sure that the unit is installed at least 6 inches above the highest probable snow level to prevent blockage of the outdoor coil and assure proper drainage of defrosted ice. A. Rooftop Installation When installing a Model 542D downflow unit or a Model 542E end-discharge unit with an accessory downflow BDP Company, Division of Carrier Corp. 542E REQUIRED CLEARANCE (lnches> Top of unit ... ...........48 Blower access door end____30 Duct side of unit.............12 End opposite blower Compressor access door access end .............. 12 side...... — ........,..30 Bottom of unit above ■ anticipated snow level.... 6 . CONTROL ACCESS DOOR --rMPT DRAIN ^CONNECTION ELECTRIC HEAT HIGH-VOLTAGE INLET WITH MULTIPLE KNOCKOUTS A79071 542E DIMENSIONS (Inches) Size A В С D E F G H J 024 & 030 60-3/16 32-3/16 24-13/16 21 11-1/2 13-5/16 54 6-7/8 6-15/16 036 60-3/16 32-3/16 24-13/16 21 13-3/4 13-5/16 54 4-5/8 6-15/16 042, 048, & 060 68-3/16 40-3/16 30-13/16 21 16-3/8 17-5/16 61-3/16 5-1/8 > 7-1/2 Sizes К L M N P R S T U V 024 & 030 18-1/8 3 15-3/32 12-9/16 13 ,28-9/16 37-1/8 2 7/8 27-3/8 036 18-1/8 3 15-3/32 12-9/16 13 28-9/16 37-1/8 2 7/8 27-3/8 042, 048, & 060 25 3-3/8 20-3/32 15-1/8 16-19/32 34-9/16 44-1/4 2 7/8 33-11/16 Figure 3—542E Dimensional Drawing TABLE I —RATINGS, PERFORMANCE, & RECOMMENDED FILTER SIZES MODEL 542E 542D SIZE 024 030 036 042 048 060 060 SERIES A A A A A A A Rated Heating Capacity @ 47°F (Btuh)* 26,00...
Questo manuale è adatto anche per i modelli :attrezzature di pompaggio - 542E (2.27 mb)