Hubbell Electric Heater Company SLN - Manual (Page 16)

16
HEATING COIL
1. Disconnect power from unit.
2. Shut off incoming cold and solar water supply.
3. Attach hose to drain connection.
4. Lift manual release lever on relief valve to let air into system or break union on outgoing
water line.
5. Drain water from tank.
6. Remove access cover. (See diagram on page 9).
7. Disconnect supply and return lines from heating coil.
8. Remove bolts securing the heating coil to the tank flange.
9. Withdraw heating coil assembly.
10. Install insert new heating coil assembly per installation instructions on page 8.
11. Reconnect supply and return lines to heating coil.
12. Fill tank and check around gasket for any leaks.
SURFACE TEMPERATURE HIGH LIMIT CUT-OFF (if supplied)
1. Disconnect power from unit.
2. Remove access cover.
3. Disconnect the four (4) 14 gauge wires or three (3) 14 gauge wires and a jumper, as required.
Control Wires
4. Remove the two (2) mounting screws or disconnect from thermostat, as required.
5. Replace control and install new high limit switch by performing above steps in reverse order.
Mounting Screws