Specifications

SAVE A SERVICE CALL

IN-SERIES BOOSTER OPERATING TOO FREQUENTLY

You may find that the in-series booster operates more frequently than expected. This will occur when the

solar heated water temperature is lower than 58°C for the 244 620 or 244 627 in-series gas booster or lower

than the temperature setting of another type of in-series booster, which may be experienced during periods

of low solar energy gain or if there has been heavy hot water usage. Factors to consider are:

Hot tap not used recently

If a hot tap has not been used for a while, the water in the pipe work between the solar storage tank and

the in-series gas booster may have cooled down. The in-series gas booster will sense the cooler water

and this will cause the burners on the water heater to ignite and boost the water temperature when a hot

tap is first turned on. The burners will extinguish when solar heated water of 58°C or higher from the

solar storage tank reaches the in-series gas booster (refer also to “Fan Continues to Run after Water

Heater Operation Stops” on page 18).

Insufficient sunlight

Insufficient sunlight due to cloudy weather during hotter months or low solar energy contribution in

colder months may mean the in-series gas booster operates more often.

Collector shaded

If trees or other objects shade the solar collector or if the glass is dirty, the effectiveness of the solar

collector will be greatly reduced. Have the trees trimmed or the solar collector relocated if the obstruction

is permanent or clean the collector glass (refer to “Collector Glass” on page 11).

Are you using more hot water than you think?

Is one outlet (especially the shower) using more hot water than you think?

Very often it is not realised the amount of hot water used, particularly when showering. Carefully review

the family‟s hot water usage. As you have installed an energy saving appliance, energy saving should

also be practised in the home. Adjust your water usage pattern to take advantage of maximum solar

gains.

Have your plumber install a flow control valve to each shower outlet, basin and sink to reduce water

usage.

Temperature pressure relief valve running

Is the relief valve discharging too much water?

Refer to “Temperature Pressure Relief Valve Running” on page 19.

Water heater size

Do you have the correct size water heater for your requirements?

The sizing guide in the sales literature suggests average sizes that may be needed.

Green LED is off or red LED is flashing on Solar Monitor

If the green LED is off or the red LED is flashing on the Solar Monitor label, there may be a problem with

the solar water heater operation and solar gain is not being achieved. This will result in the in-series gas

booster operating to provide all of the hot water required.

Switch off the electrical supply at the power outlet to the solar storage tank for a few seconds, then

switch on again.

If the green LED remains off or the red LED recommences to flash, then count the number of flashes

and phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

FAN CONTINUES TO RUN AFTER WATER HEATER OPERATION STOPS

It is the normal operation of the in-series gas booster for the fan to continue running after heating of the

water is finished. The fan may run for up to six minutes after the burners extinguish, to prepare for the next

ignition.