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Manafacture: Hubbell Company
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File name: c1f4a376-3061-4731-a9f3-fa21df8b3e70.pdf
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manual abstract
WATER HEATER PLACEMENT 1. Place the heater on a solid foundation in a clean, dry location as near as possible to the dish washing machine. 2. The water heater should be protected from freezing and waterlines insulated to reduce energy and water waste. 3. Leave a minimum of 18” clearance for element withdrawal, if necessary. 4. Do not install in an area where flammable liquids or combustible vapors are present. PIPING INSTALLATION NOTE: The most effective means for preventing deterioration from accelerated corrosion due to galvanic and stray current is the installation of dielectric fittings/unions. The installation of these fittings is the responsibility of the installing contractor. 1. Connect the cold water inlet and hot water outlet to the appropriate connections as shown; refer to the drawing for location and sizes. 2. Install water pressure regulator, if supplied, and adjust to the pressure recommended by the dishwasher manufacturer. WHEN A STANDARD PRESSURE REGULATOR IS USED, (other than that purchased with the booster), it acts as a check valve and it is possible that thermal expansion will cause the relief valve to drip or occasionally blow off a small amount of water. To over come this condition, it is recommended that a 3/8” by-pass arrangement with a horizontal check valve be installed around the pressure regulator. This will prevent annoyance caused by the relief valve dripping or blowing off. 3. Install in-line pressure and temperature gauge, if supplied. 4. Install the combination temperature and pressure safety relief valve in the tapping provided. Note that this is required by law for safety considerations. Outlet to floor drain Install into provided tapping Manual Release Lever Temperature Probe Temperature and Pressure Relief Valve 5. Install a relief valve overflow pipe to a nearby floor drain. CAUTION: No valve of any type should be installed between the relief valve and tank or in the drain line. FILLING THE HEATER 1. Open the pressure relief valve test lever to allow air to escape. 2. Open the valve to the cold water inlet and allow the heater and piping system to completely fill, as indicated by a steady flow of water from the relief valve. ELECTRICAL INSTALLATION 1. Enter electric enclosure with properly sized feeder leads. Single-phase installations require two (2) leads; three phase installations require three (3) leads. 2. Install these power leads into the box lugs on the terminal block or magnetic contactor. See wiring diagrams below. 3. Torque screws per torque chart included in Section VI. 4. All other electrical connections are made at the factory; therefore, no other electrical connections are necessary. FINAL CHECKS 1. Check all connections for tightness. 2. Ensure that all the above steps are completed 3. After the water is heated for the first time, monitor the water temperature as described in Section III, Quarterly Inspection. Outgoing Water (180°F) ! !!!!Important! !!!! Do not install any valves other than those shown between the primary water heater and the booster heater. Incoming Water (140°F) 1 – A Model Booster 2 – Dishwasher 3 – Pressure Regulator w/ built-in by-pass 4 – Pressure/Temperature Gauge 5 – Shut-Off Valve 6 – Union 7 – Drain Valve 8 – Pressure and Temperature Relief Valve (pipe overflow to floor drain or sink) 1 – Terminal Block 2 – Magnetic Contactor 3 – Heating Element 4 – Low Water Cut-Off, if supplied 5 – Transformer, 480-Volt/240-Volt, installed on 480-Volt models only. 6 – High-Temperature Limit Switch 7 – Control Thermostat 8 – Illuminated On/Off Switch SECTION III - SCHEDULED MAINTENANCE AND OPERATION WARNING / CAUTION Before performing any maintenance procedure, make certain power supply is OFF and cannot accidentally be turned on. MAINTENANCE AND OPERATION The water heater is automatic in its operation. It will maintain a full tank of water at the temperature setting of the thermostat. The water heater should not be turned on without first making sure that the tank is full of water and that all air has been released. FREEZING The tank should be fully drained in the event the electricity has been turned off and if there is danger of freezing. QUARTERLY INSPECTION 1. Monitor thermostat a. Let water heater completely heat to a designated thermostat setting. b. After thermostat satisfies (that is, when the thermostat actually clicks off), draw water from heater. c. Compare water temperature of drawn water to the temperature setting of the thermostat when it satisfies. Normal variation between the two points is approximately + 5°F. d. If these two readings do not coincide within acceptable tolerances and verification has been made of the accuracy of the temperature-reading gauge, replace the thermostat. 2. Lift test lever on relief valve and let water run through valve for a period of approximately 10 seconds. This will help flush away any sediment that might build up in water passageways. 3. Inspect element flange for leakage as follows: a. Shut ...