9 9.3 - SILVER BOILERHOUSE - WIRING
ELECTRICAL SUPPLY
230V 50Hz mains electric supply protected with a 5A fuse.
This appliance must be earthed.
A qualified electrician must carry out all electric wiring in accordance with current I.E.E Regulations and any local
regulations which may apply.
The mains electrical supply must be taken from a double pole isolating switch with a 5A fuse, positioned somewhere close
to the boiler. A heat resisting cable must be used which can be routed into the boiler through the access provided on either
side of the base. Ancillary controls may be provided for with terminal connections in the control panel.
28
4 PIN (ANALOGUE)
5 PIN (DIGITAL)
IMPORTANT
When connecting the mains supply to this unit ensure that:
1 Double insulated heat resistant cable is used.
2 No single insulated cable is exposed at connection points on the (therrmostat, burner, plug and socket).
3 All relevant lids and covers are properly replaced and secured correctly.
4 A permanent power supply (not timed) should be available at boiler location.
This can be used for a frost thermostat and or an over heat thermostat, should either or both be needed.
L1 switch live
from thermostat
Power to
burner
Temperture control dial.
Max. 80˚C. Min. 60 ˚C
High temperture limit thermostat.
Reset pin inside. Screw off cover.
Neutral
Live
Earth
IMIT dual thermostat
L2 remote lock
out lamp
• Please note a permanent live connection is required to operate
post-purge function on the burner.
• If permanent live supply is not provided, the burner will not operate.
Temperture control dial.
Max. 80˚C. Min. 60 ˚C
High temperture limit thermostat.
Reset pin inside. Screw off cover.
Neutral
Earth
IMIT dual thermostat
L2 remote
lock out lamp
Switch live
(heat demand)
Permanent
live
L1 switch live
L3 permanent live
Power to
burner
• Please note a permanent live connection is required to operate
post-purge function on the burner.
• If permanent live supply is not provided, the burner will not operate.
Use heat resistant
cable. Protect supply
with 5A fuse.
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General