Carrier GT-PX Split Series Installation, Operation & Maintenance Instructions Manual

R e s i d e n t i a l S p l i t - 6 0 H z R 2 2 & R 4 1 0 AR e v. : 5 J u n e , 2 0 0 824 W a t e r- S o u r c e H e a t i n g a n d C o o l i n g S y s t e m sThe heat pump, water piping, pump, and hot water tank shouldbe located where the ambient temperature does not fall below50°F [10°C]. Keep water piping lengths at a minimum. DO NOTuse a one way length greater than 50 ft. [15 m].All installations must be in accordance with local codes. Theinstaller is responsible for knowing the local requirements,and for performing the installation accordingly. DO NOTconnect the pump wiring until “Initial Start-Up” section, below.Powering the pump before all installation steps are completedwill damage the pump.Water Tank Preparation1. Turn off power or fuel supply to the hot water tank.2. Connect a hose to the drain valve on the water tank.3. Shut off the cold water supply to the water tank.4. Open the drain valve and open the pressure relief valve ora hot water faucet to drain tank.5. When using an existing tank, it should be flushed withcold water after it is drained until the water leaving thedrain hose is clear and free of sediment.6. Close all valves and remove the drain hose.7. Install HWG water piping.HWG Water Piping1. Using at least 5/8” [16mm] O.D. copper, route andinstall the water piping, valves and air vent as shown inFigures 14, 15, or 16. An appropriate method must beemployed to purge air from the HWG piping. This may beaccomplished by flushing water through the HWG (as InFigures 14 and 15) or by Installing an air vent at the highpoint of the HWG piping system (as in Figure 16).2. Insulate all HWG water piping with no less than 3/8”[10mm] wall closed cell insulation.3. Open both shut off valves and make sure the tank drainvalve is closed.Figure 17: Alternate HWG Piping with concentric/coaxialfitting (part #S69619804 not included with unit)(Indoor Compressor Section)Compressor SectionWaste Vent Couplingat high pointCold InletHot OutletCoaxialFittingInsulated water lines -5/8" OD, 50 ft [15m] maximumWater HeaterUpper element to120-130ϒF[49-54ϒC]Lower element to100-110ϒF[38-43ϒC]Water Tank Refill (Figures 14 and 15)1. Close valve #4. Ensure that the HWG valves (valves #2and #3) are open. Open the cold water supply (valve #1)to fill the tank through the HWG piping. This will purge airfrom the HWG piping.2. Open a hot water faucet to vent air from the system untilwater flows from the faucet; turn off faucet. Open valve#4.Water Tank Refill (Figure 16)1. Open the cold water supply to fill the tank. Use the air ventto bleed air from the HWG piping.2. Open a hot water faucet to vent air from the system untilwater flows from the faucet; turn faucet off.Water Tank Refill (All)3. Depress the hot water tank pressure relief valve handle toensure that there is no air remaining in the tank.4. Inspect all work for leaks.5. Before restoring power or fuel supply to the water heater,adjust the temperature setting on the tank thermostat(s)to insure maximum utilization of the heat available fromthe refrigeration system and conserve the most energy.On tanks with both upper and lower elements andthermostats, the lower element should be turned downto 100°F [38°C] or the lowest setting; the upper elementshould be adjusted to 120-130°F [49-54°C]. Dependingupon the specific needs of the customer, you may want toadjust the upper element differently. On tanks with a singlethermostat, a preheat tank should be used (figure 16).6. Replace access cover(s) and restore power orfuel supply.Initial Start-Up1. Make sure all valves in the HWG water circuit arefully open.2. Turn on the heat pump and allow it to run for10-15 minutes.Insulatedline set withUV PaintAdd-On Hot WaterGenerator withinternal pumpWaste VentCouplingColdInletHotOutletWaterHeaterCoaxialFittingInsulated linesetenters structureInsulated waterlinesFigure 18: HWG In stal la tion (shown with optionalconcentric/coaxial fitting part #S69619804 not includedwith unit) (Outdoor Compressor Section)Hot Water Generator