Installation / Operation Instruction Manual

13
TO DRAIN THE HEATER
Should it become necessary to completely drain the water heater, make sure
you follow the steps below:
1. Disconnect the power supply to the heater. Consult the plumbing
professional or electric company in your area for service.
2. Close the cold water supply shut-off valve.
3. Open the drain valve on the water heater by turning the knob counter-
clockwise. The drain valve has threads on the end that will allow
connection of a standard hose coupling.
4. Open a hot water faucet to allow air to enter the system.
To refill the water heater, refer to “TO FILL THE WATER HEATER.”
Thermostat Adjustment
The temperature of the water can be changed by adjusting the thermostat(s).
Before any work is done on the water heater, disconnect all power to the water
heater by opening the switch at the main electrical circuit breaker or fuse box.
Remove the access panels or front panel on tabletop models, fold the
insulation outward away from the controls. Adjust the thermostat dial using a
screwdriver until the minimum acceptable temperature is achieved. The
thermostat has been factory preset to approximately 120°F (49°C). Remember
that lower temperature settings are more energy efficient. Rotate the
temperature dial clockwise
to increase water temperature. Rotate the
thermostat dial counter-clockwise
to decrease the temperature setting.
Replace the insulation making sure that the controls are well covered and that
the plastic terminal shield has not been displaced; replace the access panel.
The water heater is now ready for operation and the main switch can be closed.
CAUTION
Before adjusting thermostat(s), turn off power supply to the water heater.