Operation of Water Heater
Water heater circuit breaker must be set to the OFF position until the water heater 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 stoppers.
2. Ensure commode, urinal, and faucet supply lines are open.
3. Fill water heater with water by opening the filling valve (1). 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 # 8 (2) in breaker panel to ON position.