Heatrae Sadia ELECTROMAX Installation & Servicing Instructions Manual page 38

(f) Replacement is a reversal of the above
procedure. Ensure the pump sealing
washers are correctly located before
tightening union nuts. Ensure the correct
electrical connections are made (Brown
wire to "L" terminal, Blue wire to "N"
terminal, Green/Yellow wire to "
terminal). Secure the electrical cable by
tightening the cable gland.
9.3.5 Removing the Primary System Pressure
Relief Valve (see diagram 41, page 38)
(a) Drain primary circuit.
(b) Unscrew the pressure gauge connection
and remove from pressure relief valve
body.
(c) Unscrew compression connections at inlet
and outlet of the valve.
(d) Remove pressure relief valve.
(e) Replacement is a reversal of the above
procedure. Ensure all connections are
correctly made and tight.
38 Installation & Servicing Instructions
"
Note: Fascia Panel not shown for clarity
Diagram 40 Pump Removal
Pressure Gauge
Connection
Temperature/
Pressure
Relief Valve
Tundish
Diagram 41 Pressure Relief Valve Removal
Pump Extension
Pump
Primary Pressure
Relief Valve
Boost emersion heater
Auto Air
Vent
O Ring
O Ring
Pump
Union
Nuts