Heatrae Sadia ELECTROMAX Installation & Servicing Instructions Manual page 39

9.3.6 Removing the Automatic Bypass
Valve (see Diagram 42)
a. Drain primary circuit.
b. Unscrew the compression connections
at inlet and outlet of the Valve.
c. Remove the Automatic Bypass
Valve.
d. Replacement is a reversal of the above
procedure. Ensure all connections are
correctly made and tight.
9.3.7 Removing the Electric Boiler
assembly (see Diagram 43)
a. Drain primary circuit.
b. Remove cover from over the Electric
Boiler Control pcb.
c. Disconnect cables from the terminal
blocks and pull back through cable
entry bush.
d. Unscrew Electric Boiler Control
Housing from right hand side panel.
e. Unscrew the compression fitting from
the lower (return) pipe to the Electric
Boiler.
f. Disconnect the "Push Fit" connection
from the upper (flow) pipe from the
Electric Boiler.
g. The Electric Boiler assembly can now
be removed. To aid removal lower the
assembly until the Control Housing is
approximately half way down the unit
and slightly flex the right hand side
panel outwards.
h. Replacement is a reversal of the above
procedure. Ensure cables are routed
into the Control Housing through the
cable entry bush. Ensure all electrical
connections are correctly made (refer
to wiring diagram 14, page 21) and
tightened fully. Loose terminations
can overheat and cause a fire
hazard.
Diagram 42 Auto By-pass Valve Removal
Automatic
Bypass
Valve
Primary
Flow
Primary
Return
Diagram 43 Electric Boiler Removal
Upper "Push Fit"
Connection
Lower Compression
Connection
Installation & Servicing Instructions
Off Peak
Immersion
Heater
Boiler Control
PCB Housing
Cable Entry
Bush
Boiler Control
PCB Cover
Electric
Boiler
Assembly
39