Rheem GAS BOOSTED SOLAR WATER HEATER Service Manual download pdf (Page 45)

AUXILIARY PUMP

AUXILIARY PUMP – ELECTRICAL CONNECTION

The auxiliary pump, if installed, must be wired to the control board. The flexible cord supplied with the pump

must be housed in a 20 mm flexible conduit. The flexible conduit should be secured to the insulated pipe

work with the cable ties provided, to the side of the solar storage tank using the adhesive backed cable tie

mounts and cable ties provided and to the penetration in the solar storage tank jacket using the cable gland

provided.

It is necessary to make a penetration in the jacket of the solar storage tank, 30 mm to the right of and aligned

with the mid height point of the lower front cover, to accommodate the flexible cable and conduit. The

penetration, 20 mm in diameter, can be made using a hole saw, suitable for cutting through 0.5 mm thick

Colorbond. The edge of the penetration is to be smoothed off after forming to ensure there are no sharp

edges. Refer to the diagram for position.

Penetration Position - Auxiliary Pump Conduit and Cable

Drain Back Solar Storage Tank

Auxiliary Pump Wiring Connection Jacket Penetration

Warning: The removal of the lower front cover will expose 240 V wiring. Switch off the electrical supply at

the isolating switch to the water heater before removing the lower front cover and if necessary disconnecting

the ribbon cable from the solar control module.

Connect the active plug from the auxiliary pump to the terminals marked “PUMP 2” on the control board

(refer to “Wiring Diagram” on page 42) and the earth wire spade connector from the auxiliary pump to a

terminal on the earth connector strip located on the bracket adjacent to the control board.

The solar monitor located on the lower front cover is connected to the solar control module by a ribbon cable.

The ribbon cable has sufficient length to enable the removal of the lower front cover and for it to be set to

one side of the opening without disconnecting the ribbon cable from the solar control module. The ribbon

cable can be disconnected from the solar control module if it is necessary to remove the lower front cover

completely from the work area in front of the solar storage tank.

If the ribbon cable from the solar monitor has been disconnected, reconnect it to the solar control module

prior to replacing the lower front cover.

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Rheem GAS BOOSTED SOLAR WATER HEATER Service Manual Page 45