Harbor Point HF-25GW Installation, Operation And Maintanance Manual

Contents

Harbor Point HF-25GW Installation, Operation And Maintanance Manual Manual pdf 16 page image

HARBOR POINT WALL SPLIT DUCTLESS SYSTEMSFIELD CHARGINGInstructions:1. Measure suction pressure and deter-mine evaporator-refrigerant temperatureon R410A scale of low-side gauge.2. Measure suction-line temperature onsuction line of the unit.3. Measure outdoor and indoor tempera-tures.4. Determine from the table what thesuperheat should be for the indoor andoutdoor temperatures.5. Adjust charge if needed. Be sure unit isrunning at stabilized condition.Example of typical system operations:Note: When the system is in heat cycle, the refriger-ant charge is checked by using the liquid sub-cool method. Liquid sub-cool is the temperaturebelow the high side pressure at its saturationtemperature.16Cooling CycleConditions 80°F DB/50% RH Indoors82°F DB OutdoorsReturn Gas Psig 140 (49° F Saturated Temperature)Superheat Refer to supplied superheat chart (16° F)Heat CycleConditions 70° F Indoors47° F OutdoorsHigh Side Gas Psig 350/375 (107/112° F Saturated Temperature)Sub-Cooling 10 - 15° F