14
xtra
-
Installation & Servicing
INSTALLATION
MAINS IN
230V AC
permanent
mains supply
L
N
CH PUMP
L
N
DHW PUMP
OR V
A
LV
E
L
N
SEQ. SUPPL
Y
CH
CALL
DHW
CALL
L
N
Optional connections for
programmable room stat.
and modulating sequencer kits
24 Volt connection
Optional connections for
outside temperature
sensor kit
Connect a meter between this
terminal and earth to measure
0-10V DC = 0-10 Micro amp
flame ionisation current
Optional connections for
DHW tank sensor kit
230V AC
output for CH
system pump.
max 1 amp
Optional 230V AC
output for DHW pump
or divertor valve.
max 1 amp.
Optional 230V AC
supply for
sequencer
Optional call for CH
Optional call for DHW
im8180
CONTROLLER
24V
OUTSIDE
TEMP
DHW
TEMP
15 INSTALLER CONNECTIONS
ima5412
'BoilerOn' Connection X2:
This relay is closed whilst the
boiler is satisfying a heat demand
'Boiler Lockout' Connection X1:
This relay is closed as soon as
lockout occurs
Volt Free Contact
INST
ALLA
TION