York YAZS022 Installation Manual

York YAZS022 Installation Manual Manual pdf 12 page image

12Figure 9: Hot Water Generator Installation in Pre-heat TankFigure 8: Typical Hot Water Generator InstallationThe heat reclaiming hot water generator coil is vented double-wallcopper construction and is suitable for potable water. To maximizethe benefits of the hot water generator a minimum 50-gallon waterheater is recommended. For higher demand applications, use an80-gallon water heater or two 50-gallon water heaters connectedin a series as shown below. A geo storage tank should not be usedin this application unless it is plumbed in a series with an electricwater heater. The geo storage tank is equipped with a single 4500Watt element and will not be able to provide adequate water heatingif used as a standalone water heater. Electric water heaters arerecommended. Make sure all local electrical and plumbing codesare followed when installing a hot water generator. Residential unitswith hot water generators contain an internal circulator and fittings. Awater softener is recommended for hard water applications (greaterthan 10 grains or 170 ppm total hardness).CAUTION: Elements will burn out if energized dry.Water Tank PreparationTo install a unit with hot water generator, follow theseinstallation guidelines.1. Turn off the power to the water heater.2. Attach a water hose to the water tank drain connection andrun the other end of the hose to an open drain or outdoors.3. Close the cold water inlet valve to the water heater tank.4. Drain the tank by opening the valve on the bottom of the tank,then open the pressure relief valve or hot water faucet.Hot Water Generator Connections5. Flush the tank by opening the cold water inlet valve to thewater heater to free the tank of sediments. Close whendraining water is clear.6. Disconnect the garden hose and remove the drain valve fromthe water heater.7. Refer to Plumbing Installation and Hot WaterGenerator Startup.Drain ValveInP/T ReliefValveColdWater In HotWater OutHWGWater InHWGWater OutVenting Waste Valveor Vent CouplingÝ[Ý[ÝWHHDrain Valve Drain ValveInP/T ReliefValveVenting Waste Valveor Vent CouplingHWGHWGÝ[Ý[ÝWHHWater InHotWater OutColdWater InWater OutP/T ReliefValveAFFINITY INDOOR SPLIT SERIES INSTALLATION MANUAL