Bradford-White Corp POWERED DIRECT VENT SERIES GAS-FIRED COMMERCIAL WATER HEATER operation manual

SECTION X: MAINTENANCE

Burner Flame Check

At the time of installation and at periodic intervals (about every 3 months), a visual check of the pilot and burner flames should be made to determine if they are burning properly. No adjustment to the air shutter should be required for this heater. The burner flames should be blue with yellow tips. A blue-orange flame is characteristic of operation on liquefied petroleum (LP) gas. If the burner flame does not appear as described, an air shutter adjustment may be required. The burner tube flames should light smoothly from the pilot.

NOTICE

IMPORTANT- In the event of an emergency, turn off the gas and electric (if applicable) to the appliance. IMPORTANT- The water heater should be inspected at a minimum annually by a qualified service technician for damaged components and/or joints not sealed. DO NOT operate this water heater if any part is found damaged or if any joint is found not sealed.

Figure 9

WARNING

Do not run out of propane gas. Damage to the water heater may occur.

Note: Actual burner may not appear as shown in Figure 9.

TO FILL THE WATER HEATER

1.Close the water heater drain valve by turning the knob or valve stem clockwise. If alternative water connections are provided but not used, make certain they are plugged (i.e. rear connections).

2.Open the cold water supply shut-off valve.

3.Open several hot water faucets to allow air to escape from the system.

4.When a steady stream of water flows from the faucets, the water heater is filled. Close the faucets and check for water leaks at the water heater drain valve, combination temperature and pressure relief valve and the hot and cold water connections.

5.To restore operation of the water heater, refer to operating instruction label on the water heater.

TO DRAIN THE WATER HEATER

Should it become necessary to completely drain the water heater, make sure you follow the steps below:

1.Reduce the thermostat to the lowest setting. Depress the control panel rocker switch on the top of the control box to the “OFF” position. Disconnect power to the water heater.

2.Rotate and partially depress gas control knob clockwise to the “OFF” position.

3.Shut off the gas supply to the water heater.

4.Close the cold water supply shut-off valve.

5.Open the drain valve or valve stem on the water heater by turning the knob counter-clockwise. The drain valve has threads on the end that will allow the connection of a standard hose coupling.

6.Open a hot water faucet to allow air to enter the system.

To refill the water heater, refer to “To Fill the Water Heater.”

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