Heatrae Sadia ELECTROMAX SOLAR Installation & Servicing Instructions Manual page 63

8.13 SOLAR CHECK VALVE (RETURN)
1. Fully drain the solar primary circuit.
2. Unscrew the two screws holding the Electromax Solar control panel in place and allow it
to drop forward.
3. Move the central heating expansion Vessel to one side.
4. Undo the two return check valve compression connections.
5. Replace the return check valve. Re connect the two compression connections. Re fit the
central heating expansion vessel and the Electromax Solar control panel.
8.14 SOLAR PRESSURE RELIEF VALVE
1. Fully drain the solar primary circuit.
2. Disconnect the solar discharge pipework from the solar pressure relief valve.
3. Undo the compression fitting connecting the solar pressure relief valve to the solar pri-
mary circuit.
4. Fit the new solar pressure relief valve. Tighten the compression fitting between the solar
pressure relief valve and the solar primary circuit. Refit the solar discharge pipework.
8.15 SOLAR THERMAL CUT OUT
Note: The Solar primary circuit does not need to be drained to replace the solar thermal cut
out.
1. Remove the thermal cut out cover by unscrewing the securing screw.
2. Disconnect the wiring from the solar cut out.
3. Undo the two screws holding the solar thermal cut out to the cut out bracket and remove
the thermal cutout sliding the capillary probe and the solar controller sensor from the cut
out pocket
4. Fit the new solar thermal cut out. Slide the thermal cut out probe and then the solar con-
troller sensor into the cut out pocket into the cut out pocket . Tighten the two screws hold-
ing the solar thermal cut out to cut out bracket. Re connect the wiring. Refit and secure
the solar thermal cut out cover.
FIGURE 40: SOLAR THERMAL CUT OUT
THERMAL
CUT OUT
COVER
COVER
SECURING
SCREW
THERMAL
CUT OUT
SCREWS
CUT OUT
BRACKET
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