Plum ecoMAX920P1-S TOUCH, Инструкция по установке и эксплуатации, Страница: 30 / 48

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Service settings
→
Mixer 1-5 settings
→
Thermostat selection
12.13 Boiler room thermostat
connection
Boiler circuit room thermostat may activate
the burner or deactivate CH boiler pump. In
order for the room thermostat to control
boiler operation, set the Thermostat select.
value to Standard or ecoSTER T1 or eSTER
T1 (if the ecoSTER TOUCH or eSTER_x80
room control panel is connected):
Service settings
→
Boiler settings
→
Thermostat selection
In order for the room thermostat to control
CH pump operation (without deactivating the
boiler), set the Turn off boiler pump from
thermostat value to YES in the menu:
Service settings
→
Boiler settings
→
Off
by thermostat
12.14 Connecting auxiliary boiler
The controller may control the operation of
auxiliary boiler (gas or oil). Then it is not
necessary to manually switch on or off the
boiler. Auxiliary boiler will be switched on
when main boiler temperature drops and will
switch off when main boiler reaches relevant
temperature. Connection to auxiliary boiler,
e.g. gas, should be done by qualified
installer,
according to the technical
documentation of the boiler. Auxiliary boiler
should be connected using a relay to the
terminals 30-31 of additional module B.
Exemplary wiring diagram for connecting auxiliary boiler
to the controller: 1 – additional module B, 2 – auxiliary
boiler (gas or oil), 3 –relay RM 84-2012-35-1006 and
base GZT80 RELPOL
.
By standard the controller is not equipped
with a relay.
Relay installation should be
commissioned to a qualified
person, accordingly to applicable
regulations.
To enable control of auxiliary boiler the
parameter Temperature of reserve boiler
activation should be set to zero in the menu:
Service settings
→
Boiler settings
→
Auxiliary boiler
Switching off the auxiliary boiler control is
done by setting a zero value for the
parameter of switch off.
The control output of the auxiliary
boiler is also shared with the
alarm output. Switching off the
auxiliary boiler control will result
in controlling this output by alarm
control module.
When boiler is fired-up and its temperature
exceeds the preset value, e.g. 25
 C, then the
controller will switch off the auxiliary boiler –
provide constant voltage of 6 VDC to
terminals 30-31. After boiler temperature
drops below 25
 C the controller will stop
providing voltage to terminals 30-31 which
should switch on the auxiliary boiler.
Switching the controller off will
switch on the auxiliary boiler.
Exemplary hydraulic scheme with auxiliary boiler in
closed circuit: 1 – boiler with control panel, 2 – auxiliary
boiler, 3 – relay, 4 – switching valve (with limit
switches)
.