ICP NAC0 Installation Instructions Manual Download | Manualshive

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Summary of Contents for NAC0

Page 1: ...R 22 is toxic when burned NOTE TO INSTALLING DEALER The Owners Instruc tions and Warranty are to be given to the owner or promi nently displayed near the indoor Furnace Air Handler Unit Check local codes covering zoning noise platforms If practical avoid locating next to fresh air intakes vent or bedroom windows Noise may carry into the openings and disturb people inside Placement of the unit shou...

Page 2: ...se transmission it is recom mended that supports not be in contact with the building structure However slabs on grade constructions with an extended pad are normally acceptable A Ground Level Installation If beams or an open platform are used for support it is rec ommended that the soil be treated or area be graveled to retard the growth of grasses and weeds B Roof Top Installation This type of in...

Page 3: ...sted TOTAL LENGTH OF REFRIGERANT LINES MUST NOT EXCEED 75 ft WITH A MAXIMUM VERTICAL SEPARA TION OF 50 ft BETWEEN THE OUTDOOR AND IN DOOR UNITS WITH 3 TRAPS 2 TRAPS FOR 40 ft Restrictor Orifice Some indoor matches use a restrictor orifice in the fitting at the indoor coil Some matches may require a different ori fice for proper system performance and it must be changed before the refrigerant lines...

Page 4: ...o the compressor should be main tained with suction gas velocity If velocities drop below 1500 fpm feet per minute oil return will be decreased An oil trap should be installed every 20 of vertical suction line riser condenser above evaporator Refer to line sizing charts Figure 4 Oil Traps 10 Max Min 0 ft Line Valves The outdoor condensing unit is supplied with straight sweat brass service valves w...

Page 5: ...lly insert a hex wrench into the stem A back up wrench is required on the valve body to open the valve stem Backout counterclockwise until the valve stem stops or just touches the retaining ring NOTE THIS IS NOT A BACKSEATING VALVE For valves with retainer rings care must be taken to prevent dislodging them when opening valve The service valve cap is a primary seal for the valve and must be proper...

Page 6: ...Make all outdoor electrical supply Line Voltage connec tions with rain tight conduit and fittings Most codes re quire a disconnect switch outdoors within sight of the unit Route Line Voltage wiring through entrance and through hole in the bottom of the Control Box to connect to Contac tor and Ground Lug Route Low Voltage wiring through entrance ONLY and make ALL low voltage connections to the low ...

Page 7: ...robe Sensor Probe front view side view R G BL W I I INDOOR GAS BLOWER OR FURNACE COIL Figure i2 Heat Pump Typical Low Voltage Control Connections White Rogers 1F92 only field jumper required Y1 Wl Indoor Thermostat C NOTE White Rogers 1F92 thermostat cannot be used for direct staging of electric heat Outdoor thermostat must be used for staging ELECTRIC HEAT NO OUTDOOR THERMOSTAT __ I INDOOR ACCESS...

Page 8: ... 6 100 39 8 39 67 1 105 40 8 40 68 5 110 115 PSIG R 22 70 0 71 4 73 0 74 5 76 0 77 6 79 2 80 8 82 4 84 0 92 6 101 6 111 2 121 4 132 2 143 6 155 7 168 4 181 8 195 9 210 8 226 4 242 7 Before any adjustment is made to the refrigerant charge it is imperative that the air flow characteristics of the indoor blower be established When checking indoor air flow it is important to remember that the blower w...

Page 9: ...he first power application 8 With the unit operating close all doors windows storm windows and openings to the house Set the thermostat to the desired setting Set outdoor ther mostat if installed to balance point of house If tem perature of house is at least two degrees below thermostat setting heat pump and auxiliary heat not controlled by outdoor thermostats will continue to run until room tempe...

Page 10: ...o not remove the cap on a Non Adjustable TXV Figure 6 Cap Nut on an TXV Adjustable TVX Note It is recommended that a reference mark be made on the TXV body and the adjustment stem before adjustments are made This allows one to accurately measure the posi tion of the adjustable stem to guard against over adjust ment of the stem To Cap Nut to adjustable ...

Page 11: ...ng off the coil In some areas with high humidity the time interval or tem perature termination may require adjustment for complete removal of ice from the coil For best economy always set to the longest interval or lowest temperature that will keep the coil clear of ice NOTE The term ice means hard but not frost During nor mal operation the coils may become coated with frost until they are solid w...

Page 12: ...he outdoor coil clean and free of restrictions Keep fences shrubs snow drifts and any other obstructions at least two feet from all coil air inlets Keep the coil free of grass clippings weeds and other debris BE SURE TO TURN OFF ELECTRICITY BE FORE CLEANING Coils may require cleaning The coil should al ways be cold when cleaning Use an alkaline based cleaner only Cleaning a hot coil or using an ac...

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