3202 COLBY AVE PERFORMANCE HOME MEDICAL 2023-07-14

brgnnt installation, • •. / • maintenance instructions Sizes 024 thru 0.• Payne PACKAGED HEAT PUMPS & • DO4Cancels: New 40542DP6-A 12/15/79 ... •'4jSTANDA NOTE: Installation must conform to the guidelines pre i��p �� a sented in these unit Installation Instructions. Read and l become familiar with these instructions before starting in- stallation. 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 con- junction with an accessory roof mounting curb and incorpor- A79110 ates a down-discharge/return-air plenum as an integral part of the unit. Figure 1—Model 542E These packaged heat pumps are factory-charged and sealed. Installation is easy—simplyconnect condensate drain, air r^ , ducts, high- and low-voltage wiring, and install a field-sup- R plied 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 up the conditioned space. All units can be connected into existing duct systems thatand are properly sized and designed to handle an airflow of 400 to 450 ft3/min per each 12,000 Btuh of unit capacity. ��'� "� A79111 Accessory UL-listed, field-installed, supplemental electric heat packages are available in a variety of KW and voltage Figure 2—Model 542DO60 Mounted On options. These electric resistance heaters mount inside the Accessory Roof Mounting Curb unit blower compartment. VI. Refrigerant Leaks Important-Read Before Installing VII. Startup and Adjustments 1. Check all local and other applicable codes for informa- VIII. Sequence of Operation tion concerning proximity to property lines, height IX. Care and Maintenance above roof,obstructions,or other special installation re- quirements. I. MOVING AND SETTING UNIT IN PLACE wv n�"V y�,�+ 2. Make certain that power supply available (volts, hertz, CA N. €'recautions must;be taken to prevent damage and phase) corresponds to that specified on unit rating whe owing the unit.The unit must remain in an upr4ght� plate. posi �duiing all rigging and movmg�operations Besure 3. Check electrical supply provided by utility to be sure to pr, c��`the top and sides of the uirj��by using spr � ers that service capacity is sufficient to handle load imposed when riggingthe unit to be lifted. hIodel 542D ms be f by unit being installed. rigged for lifting as shown in Figure T:l ode1 542E mtx`st be 4. Refer to the 542D or 542E dimensional drawing for loca- rigged for lifting as shown in Figure 8. tions of electrical inlets, condensate drain,duct connec- The unit must be installed level for proper condensate tions, and required clearances before setting unit in drainage. Be sure that the ground level pad,field-fabricated place. support,or accessory roof mounting curb is level before set- GENERAL ting the unit in place. Models 542D and 542E Packaged Heat Pumps have been de- When selecting an installation site,try to locate the unit on signed and tested in accordance with ARI Standard 240-77 the side opposite the prevailing wind to assure proper opera- and 270-75, and are UL-listed. tion of the defrost cycle and to avoid snow drifts that could These instructions contain the following sections: block the outdoor coil.Be sure that the unit is installed at least 6 inches above the highest probable snow level to prevent I. Moving and Setting Unit in Place blockage of the outdoor coil and assure proper drainage of II. Condensate and Defrost Disposal defrosted ice. III. Duct Connections A. Rooftop Installation IV. Electrical Connections When installing a Model 542D downflow unit or a Model V. Preparing Unit for Startup 542E end-discharge unit with an accessory downflow BDP Company, Division of Carrier Corp.