61
8.9 SOLAR EXPANSION VESSEL
Note: The solar primary circuit does not need to be drained to replace the solar expansion
vessel if the self sealing connection has been used.
Remove the expansion vessel from the wall mounted bracket.
1.
Unscrew the expansion vessel from the self sealing connector (leaving the self sealing
2.
connector connected to the solar pipework)
.Replace the expansion vessel and re fit to the wall mounted bracket.
3.
8.10 SOLAR CIRCULATING PUMP
Close the solar check valves and drain the solar primary circuit.
1.
Unscrew the two screws holding the Electromax Solar control panel in place and allow it
2.
to drop forward.
Move the central heating expansion vessel to one side.
3.
Disconnect the solar pump cable from the solar pump housing
4.
Undo the two solar pump union nuts.
5.
Replace the solar pump. Re connect the two union nuts and re connect the solar pump ca-
6.
ble. Re fit the central heating expansion vessel and the Electromax Solar control panel.
8.11 SOLAR FLOW METER
Close the solar check valves and drain the solar primary circuit.
1.
Un clip and remove the solar return pipework from the domestic hot water cylinder.
2.
Undo the two compression connections to the solar flow meter.
3.
Replace the solar flow meter. Re connect the two compression connections. Fit and re
4.
clip the solar return pipework to the domestic hot water cylinder.
FIGURE 38: SOLAR CIRCULATING PUMP
CENTRAL HEATING
EXPANSION VESSEL
SOLAR CIRCULATING
PUMP
UNION NUT
CONTROL PANEL
PUMP CABLE
CONNECTOR
UNION NUT
