Heatrae Sadia ELECTROMAX SOLAR Installation & Servicing Instructions Manual page 27

3.7 INSTALLATION CENTRAL HEATING
FIGURE 15: CENTRAL HEATING PRIMARY CIRCUIT
PRESSURE
RELIEF
VALVE
Installation of the central heating primary circuit requires:
• Connection to the central heating flow and return.
• Room Thermostat Installation
• Central heating design consideration.
3.7.1 CONNECTION TO CENTRAL HEATING FLOW AND RETURN
Connection to the central heating flow and return can be from underneath the Electromax
Solar or through knock out panels at the front, bottom left hand side.
Connection is made by 22mm compression fitting.
Solder connections directly to the unit must not be made as the heat may damage the
Electromax Solar insulation material. Damage caused by heat applied to solder fittings in
close proximity to the unit will not be covered by the warranty.
AUTOMATIC
AIR VENT
CHECK
VALVE
RETURN FLOW
PUMP
EXPANSION
VESSEL
AUTOMATIC
BYPASS VALVE
CHECK
VALVE
ELECTRIC
FLOW
BOILER
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