31
as demonstrated in Drawing 31 and Drawing
35.
Drawing 35 Model diagram of layout for connecting a
reserve boiler to the ecoMAX 800 regulator, where: 1
–
ecoMAX 700 regulator, 2
–
reserve boiler (gas- or oil-
fired), 3
–
Module U3, consisting of relay RM 84-2012-
35-1006 and base GZT80 RELPOL.
In a standard version, the regulator is not
equipped with the U3 module. Components
necessary for assembly of the U3 module can
be purchased from the manufacturer of the
ecoMAX regulator.
You have to perform assembly
and installation of the module by
yourself, in conformity with the
applicable standards.
To enable control of a reserve boiler, set the
temperature of the CH system at which the
reserve boiler is to be disabled:
Drawing 36 Enabling control of a reserve boiler
MENU -> SERVICE SETTINGS -> BOILER
SETTINGS
->
AUXILIARY
BOILER
->
Auxiliary boiler off temperature
Control over a reserve boiler is disabled if the
aforementioned parame
ter is set to „0”.
When the retort boiler is fired up, and its
temperature exceeds a preset value, e.g.
25
o
C, the ecoMAX 800regulator will disable
the reserve boiler. It will supply a constant
voltage 6V to terminals 31-31. This will
cause release of the U3 module relay coil,
and its contacts will be disconnected. After
the boiler temperature drops below the
parameter
auxiliary boiler off temperature
,
the regulator ceases to supply voltage to the
terminals 30-31, which will activate the
reserve boiler.
Disabling control over reserve boiler
causes switching of the contact 30-
31 to alarms.
Switching the ecoMAX800 regulator
into the STOP or STANDBY modes
causes activation of reserve boiler.
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