Alternatives: The Ideal programmable room thermostat and outside sensor kit provides enhanced user comfort. Full
instructions provided with kits.
Parameter modications see Frames 35 to 39.
Parameter 46 = 03 If a live output is required for positioning of
the valve to satisfy CH demand.
Parameter 46 = 23 If a live output is required for positioning of
the valve to satisfy DHW demand.
This system provides heating to one zone at a time with DHW
priority controlled by parameter 43. To heat more than one zone
simultaneously, use zone thermostats to energise individual
zone valves with all calls for heat applied to 'CH CALL'. The
boiler will be limited to responding with a set ow temperature
set by parameter 4 (see Frame 31).
If all zones are tted with individual zone valves a hydraulic
bypass will be required to allow pump overrun. See page 6 and
10 for details.
* The switched live from external controls must be from the same phase supply as the boiler
mains supply to ensure that when the boiler supply is switched off the controls are also isolated.
230 VAC
Permanent
mains supply
If pump requires more
than 1 amp supply current,
connection must be made
via a relay
Motorised
Valve
(Not Mid-position)
Room
stat
Cyl
stat
DHW CH
External 230 VAC
Programmer *
CH
CALL
DHW PUMP OR VALVE
MV
DHW
N
L
NL
CH PUMP
NL
MAINS IN
NL
DHW
CALL
230 VAC
Permanent
mains supply
MAINS IN
NL
im8487
SLAVE MODULEMASTER MODULE
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