York H1RA036 Installation Instruction
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FIGURE 1 – OUTDOOR UNIT LOCATION18” SERVICEACCESS CLEARANCE60” 10” CLEARANCECOIL AREAWEATHERPROOFDISCONNECTSWITCHTHERMOSTAT TO FURNACE OR AR HANDLERTERMINAL BLOCKNEC CLASS 1 WIRINGNEC CLASS 2 WIRINGTO INDOOR COILSEAL OPENING(S) WITH PERMAGUMOR EQUIVALENTCONTROL ACCESS PANELNOTE: ALL OUTDOOR WIRING MUSTBE WEATHERPROOFINDOOR UNITSInstall the indoor coil in the furnace or air handler accord -ing to the installation instructions packed with each com -ponent.REFRIGERANT LINESThe following steps are very important when setting up arefrigerant system and need to be followed completely toensure that a strong, flexible and leak tight system is ob -tained.The installation of the copper refrigerant tubing must bedone with care to obtain reliable, trouble–free operation.1. Selecting of proper refrigerant tubing grade and size.2. Refrigerant line routing, cutting and fitting.3. Proper preparation of joint connections.4. Reassembling, cleaning and brazing the joint con-nections.5. Insulating the vapor line.6. Connecting the refrigerant lines to the indoor coil andoutdoor unit.7. Pressure leak test all joints.8. Evacuate refrigerant lines and indoor coil.9. Charging refrigeration system (if the line length isother than 15 feet.) See Table 2.Table 2 – Refrigerant Line ChargesLiquid OD Vapor OD R–22 Charge, OZ/FT3/8” 5/8” 0.663/8” 3/4” 0.683/8” 7/8” 0.703/8” 1–1/8” 0.761/2” 1–1/8” 1.26Use only ACR grade copper tubing and keep ends sealeduntil joints are made.The correct diameters of the refrigerant lines are listed onthe unit nameplate.For best performance, select routing of refrigerant linesfor minimum distance and fewest number of bends.Determine the path that the refrigerant lines will follow.Starting at either the indoor coil or the outdoor unit refrig -erant line connections, carefully measure, cut de–burrand fit copper refrigerant lines along the path previouslydetermined.NOTE: If it is necessary for bends to be formed in thevapor line, the radius should not be less than 12inches.Cut ends of the copper tubing square.Remove all burrs from tubing with a reamer, file or de–burring tool.Slope tubing towards the outdoor unit.When the indoor coil is above the outdoor unit the vaporline should be sloped toward the outdoor unit with a fall ofleast 1/4 inch per 5 FT.When the outdoor unit is above the indoor coil the hori-zontal runs should be sloped toward the outdoor unit asdescribed above. |
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