36
- Installation & Servicing
INSTALLATION
48
INDEPENDENT SYSTEM CONTROLS
If the system controls are to be independent of the boiler, then the following method should be used for connecting the boiler.
No parameter modifications are required.
Frost Stat
if required
230vac
Permanent
main supply
Switched live from
external controls
generating call for heat
System pump
(maximum load
1 amp) connect via
a relay for greater
currents
49
MAINS VOLTAGE CH AND DHW CONTROLS WITH DHW PUMP OUTPUT
Pump
PumpNon return
valve
Non return
valve
Cylinder
thermostat
PUSH
Programmer Room stat
ima5454
ima5455
ROOM
CYLINDER
No parameter modifications
are required.
Alternatives: Try our
programmable room
thermostat, outside sensor and
tank sensor kit for enhanced
user comfort. Full instructions
provided with kits.
Note.
If either pump requires
more than 1 amp
supply current,
connection must be
made via a relay
INSTALLATION
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