Bradford White Water Heater MII80-SF

1. Use a stiff brush to remove any debris or loose scale from tank surface where new thermostat will be installed.

2. Slide new thermostat down into thermostat bracket until it snaps into place. IMPORTANT! Thermostat must set completely flat or flush to tank surface. An improperly installed thermostat will cause improper water heater operation.

3. Refer to the wire diagram located on the inside of the upper control box cover and re-connect wires to the thermostat.

Be sure wire connections are snug and corrosion free. Do not over tighten, doing so may damage thermostat.

4. Set thermostat to the original thermostat setting found on the old thermostat.

5. Restore power to water heater and verify proper heater operation.

Turn power 'OFF' to water heater

Turn off cold water supply to heater

Connect hose to drain spigot of water heater and route to an open drain

Open a nearby hot water faucet to vent heater for draining

Open drain spigot of water heater and allow heater to drain to a point below the Immersion bulb location

Close drain spigot and remove hose

Remove lower control box cover and insulation

Check new element terminal block for proper electrical rating

Apply new element gasket to the new element

Ensure gasket is seated flat against element flange without rolls or gaps

Clean any debris from element fitting on tank

Thread new element clockwise into tank

Tighten element using 1-½” deep well socket or appropriate wrench

Ensure element is not over tightened to avoid damage to element gasket

Turn power 'OFF' to water heater

Turn off cold water supply to heater

Connect hose to drain spigot of water heater and route to an open drain

Open a nearby hot water faucet to vent heater for draining

Open drain spigot of water heater and allow heater to drain to a point below the anode locations at the top of the tank

Close drain spigot and remove hose

Remove the plastic anode access plugs at the anode locations

Power and Water Supply Shutdown

Turn power 'OFF' to water heater

Turn off cold water supply to heater

Connect hose to drain spigot of water heater and route to an open drain

Open a nearby hot water faucet to vent heater for draining

Open drain spigot of water heater and allow heater to drain to a point below the Immersion bulb location

Preparation for ECO Control Removal

Close drain spigot and remove hose