Specifications

Float Type Low Water Cut Off Control - Replacement

The float type low water cut off control assures that if the water level in the tank drops to

an unsafe level, power will be cut off so that the heating elements will not "burn out". If

the low water cut off is determined to be defective and must be replaced, follow the

detailed procedures below.

1. Follow Steps 1 through 5 of the shutdown procedure (page 19) to take the unit

off-line before attempting to replace the low water cut off control.

t The combination of electricity and water can pose a very dangerous situation.

Assure that all power has been shut off / disconnected and locked out in an

approved manner, before attempting any installation or maintenance procedures.

2. Assure that the power has been turned off, the pressure bled from the tank, the

water drained from the system, and the unit has had a chance to cool.

3. Unlock and open the door of the electric control cabinet. Make a sketch of how

the wires from the low water cut off are connected within the panel. Disconnect

the wires leading from the low water cut off. (If necessary, consult the Wiring

Diagram(s) supplied with the unit to determine the correct wires to detach.) Feed

the wires out of the electric control cabinet housing.

4. Break the joints above and below the low water cut off control.

Note: Depending on the specific unit, it may be necessary to break the joints of other

components to allow removal of the low water cut off control. If this is

necessary, care should be taken to assure other components are not damaged

during these maintenance procedures.

5. Remove the low water cut off.

6. Position the replacement low water cut off control and reconnect to the joints

above and below the unit. Follow recommendations contained in the

manufacturer's documentation, local codes, or accepted contractor practices as to

the use and / or type of joint compound or sealer at the connections.

7. If any other components were loosened or moved to allow for removal of the low

water cut off control, reposition and tighten the joints for those components.

8. Feed the wires from the low water cut off control into the electric control cabinet

housing. Reconnect the wires in same position from which they were removed.

9. Follow the start up procedures on page 17 to return the unit to service.