valutazioni - 3, GPA: 3.7 ( )

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In the event of a power failure at temperatures below freezing, the water heater should be drained of all water to prevent freezing damage. The unit may be drained manually or through the installation of the Optional solenoid valves as shown. The electrical connections for the two solenoid valves should be tied tothe 120 V power terminals provided on the PC Board of the water heater. When the electrical power to the water heater fails, the cold water supply drain down solenoid valve opens, allowing the water heater and associated piping to drain. Ensure that you run the drain for the solenoids per local codes. OutdoorTanklessWater HeaterRoute drain per local codes NOTE:outside building structure. These are indicated by being above the dashed line. line should be located inside the building structure. The vacuum breaker line should be located inside the building structure. NOTE:enclosure or recess box and packed with insulation for additional protection. Outdoor Tankless 1 Water Heater Gas Supply Line Key Pressure Relief Valve 3/ 4" Ball Valve3/ 4" UnionCheck Valve S Pressure RegulatorCirculating PumpSolenoid Valve Boiler Drain Valve Domestic Hot Water - Optional Freeze Protection1 Outdoor Tankless Water HeaterPreferred Piping InstallationThis is not an engineering drawing; it notas a replacement for professional engineering This drawing is not intended to describe It is up to thecontractor or engineer to determine andconfiguration of the particular The drawing doesnot imply compliance with It is theresponsibility of the engineer isin accordance with Confer with local buildingofficials before installation. Drawing Number:WH-1-DDrawing Date: June 11, 2007 15 Normally ClosedSolenoid ValveS VacuumBreaker Sub 1Primary IMPORTANT! With electrical power supplied to a Tankless water heater, it will not freeze in enviornments as cold as -30.F, when protected from direct wind exposure. In the event of a power failure at temperatures below freezing, the water heater should be drained of all water to prevent freezing damage. The unit may be drained manually or through the installation of the Optional solenoid valves as shown. The electrical connections for the two solenoid valves should be tied tothe 120 V power terminals provided on the PC Board of the water heater. When the electrical power to the water heater fails, the cold water supply drain down solenoid valve opens, allowing the water heater and associated piping to drain. Ensure that you run the drain for the solenoids per local codes. NOTE:outside building structure. These are indicated by being above the dashed line. line should be located inside the building structure. NOTE:enclosure or recess box and packed with insulation for additional protection. OutdoorTanklessWater Heater OutdoorTanklessWater HeaterGas Supply Line TanklessEquipment List QTY Tankless Outdood 2 Water HeatersElectronic Connection ** Refer to Tankless Accessories and Model Applicability for electronic connection details. Hot Wate...

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