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8.18 CENTRAL HEATING AUTOMATIC AIR VENT
Close the central heating isolation valves and drain the central heating primary circuit.
1.
Unscrew the two screws holding the Electromax Solar control panel in place and allow it
2.
to drop forward.
Unscrew the automatic air vent from the central heating pump housing.
3.
Replace the automatic air vent. Re fit the Electromax Solar control panel.
4.
8.19 CENTRAL HEATING PRESSURE RELIEF VALVE
Close the central heating isolation valves and drain the central heating primary circuit.
1.
Undo the compression connection connecting the discharge pipework (D1) at the
2.
tundish.
FIGURE 42: CENTRAL HEATING PRIMARY SYSTEM COMPONENTS
ELECTRIC
BOILER
PUSH FIT
ELBOW
COMPRESSION
FITTING
ELECTRIC BOILER
MAIN PCB
PCB SCREWS
(X4)
AUTOMATIC
AIR VENT
PRESSURE
RELEIF VALVE
DISCHARGE
PIPE D1
COMPRESSION
FITTING
AUTOMATIC
BYPASS VALVE
COMPRESSION
FITTING
FILLING LOOP