OPERATION
General |
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| time, operate the | rinse cycle and check | the water | ||||
Use the following procedures to operate the Magnum Series | 8. When the booster water heater has had sufficient heating | |||||||||||
temperature and pressure readings on the gauges. | ||||||||||||
Commercial Electric Booster water heater. |
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| Water temperature at the booster outlet should be | ||||||||
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| psi (138 kPa) maximum. |
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Read all safety messages in the Important Safety |
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NOTE: Outlet water | temperatures can be | adjusted | ||||||||||
| Information section before operating this equipment. |
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DO NOT turn on power to the booster water heater until | ||||||||||||
the Maintenance section for thermostat adjustment | ||||||||||||
tank has been filled with water and all air has been vented | procedure. |
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through dish machine rinse nozzle. The heating elements |
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will burn out in seconds if operated when they are not |
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| WARNING |
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immersed in water. |
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Startup |
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| Units are equipped | with a high temperature limit safety | |||||
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| switch that will shut off power if the unit overheats. | |||||||
1. Close the drain pipe |
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| Contact an Authorized Service Agent if high temperature | ||||||||
2. Open the | limit safety switch cannot be reset or continues to trip. | |||||||||||
| temperature at the inlet should be 110° to | 140°F (43° to | Shutdown |
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| 60°C) and should not exceed 160°F (71°C). |
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| Under normal and regular operation, Bradford White | |||||||
NOTE: Minimum temperature differential between inlet and | recommends that the unit be turned on at all times. |
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| outlet should never be less than 20°F (11°C). | If the booster water heater will not be used for an extended | ||||||||||
3. When the booster tank is filled with water, vent all air from | period of time or will be exposed to freezing conditions it should | |||||||||||
| the tank before turning on the unit. To vent the booster tank: | be drained to prevent damage to the unit. |
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| • Open the temperature/pressure relief valve. | 1. Move the Power ON/OFF switch to the OFF position. | ||||||||||
| • Run the dish machine through several cycles to vent air | 2. Disconnect power supply to the booster water heater. | ||||||||||
| through the rinse nozzles. |
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| 3. Close the inlet water supply line | |||||||
4. Check all plumbing connections for leaks. |
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| booster water heater. |
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5. Check the temperature/pressure relief valve discharge |
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| NOTICE |
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| opening to be sure it is not blocked and no scale or other |
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| foreign matter has reduced the size of the opening. | ALWAYS drain booster water heater with power to the unit | ||||||||||
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| off or element burnout could occur. |
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| CAUTION |
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BURN HAZARD: |
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| 4. Open the drain | |||||||
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| booster water heater tank. |
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• Water in unit is very hot. Wear protective gloves and |
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| proper attire when operating to avoid injury. |
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• Some exterior surfaces on unit will get hot. Avoid |
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| unnecessary contact with unit. |
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6. Turn on the electrical supply to the booster heater. |
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7. Move the Power ON/OFF switch to the ON position. The |
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| indicator light will turn on. |
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| Indicator Light | Power ON/OFF |
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| Switch |
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Figure 10. Control Panel
12 | Form No. |
