Mains Water Supply; Tank Water Supply - Rheem Water Heater User Manual

INSTALLATION – SOLAR STORAGE TANK

MAINS WATER SUPPLY

Where the mains water supply pressure exceeds that shown in the table below,
an approved pressure limiting valve is required and should be fitted as shown
in the installation diagram
Model
Relief valve setting
Expansion control valve setting *
Max. mains supply pressure
With expansion control valve
Without expansion control valve
Min. mains supply pressure
* Expansion control valve not supplied with the water heater.

TANK WATER SUPPLY

If the water heater is supplied with water from a tank supply and a minimum
water supply pressure of 200 kPa at the water heater cannot be achieved, then
a pressure pump system must be installed to allow the solar circuit system to
operate. Care must be taken to avoid air locks. The cold water line from the
supply tank should be adequately sized and fitted with a full flow gate valve or
ball valve.
(refer to diagram on page
260
1000 kPa
850 kPa
680 kPa
800 kPa
200 kPa
28
40).