TM 10-4510-209-13&P
0009 00
Operation of Water Heater
CAUTION
Water heater must not be turned on until it has been filled with water. Ensure there is no air
in the line. Failure to do so will result in failure of water heater heating unit and damage to
equipment.
1. Remove sink plugs.
2. Ensure toilet, urinal, and faucet supply (1) lines are open.
3. Fill water heater with water by opening the filling valve (2). Turn on the hot water faucets to ensure
heater is full and no air is trapped in the lines.
4. Set water heater circuit breaker # 2B in breaker panel to the ON position.
1
2
0009 00-5
