Heatrae Sadia ELECTROMAX SOLAR Installation & Servicing Instructions Manual page 39

4.7 COMMISSIONING - SOLAR
The Electromax Solar circuit system should only be flushed and filled when there is no direct
radiation from the sun. If direct radiation is likely to occur the collector(s) should be shaded
by covering them during flushing and filling.
Use only the heat transfer fluid supplied with the Electromax Solar collector kits. Additional
solar fluid is available, accessory code 5119549 for flat plate collectors and 5130225 for
evacuated tube collectors.
Although the solar heat transfer fluid is non-corrosive and biodegradable appropriate precau-
tions should be taken when handling.
• Wear protective gloves and goggles.
• Wash with soap and water if the fluid comes into contact with skin.
• If fluid gets into eyes, rinse immediately with large quantities of clear running water.
• A full safety and specification sheet can be obtained by request.
The solar heat transfer fluid must be pumped into the system. The pump can be electric or
manual but must be capable of producing a pressure of at least 0.2 MPA (2.0 bar).
It is recommended that the pipework is checked for leaks prior to flushing and filling. This
may be achieved by an air test. Pressurise the system to a maximum of 0.1 MPa (1.0 bar) to
check for leaks.
FIGURE 24: SOLAR COMMISIONING
SOLAR
FLOW
CHECK
VALVE
SOLAR
FLOW
CHECK
VALVE
AIR
VENT
SOLAR
BLEED
AIR
SCREW
VENT
FLOW METER
FILL POINT
FLOW METER
DRAIN POINT
SOLAR
FLOW
METER
FLOW
METER
ADJUSTMENT
SCREW
CONTAINER
PUMP
SOLAR
FLUID
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