Connecting Electrical Supplies 43
9.3 Setting the Heating Demand
Set the heating demand on the DIW switch. To use the DHW
tank, control the panel for DHW settings.
9.3.1 CH Demand Setting
The DIP SW on the circuit board that configures source of the
heat demand is listed in the following table.
Switch2 Function Setting
6 & 7 & 8
CH Heat
Demand
Switched Live 6-OFF, 7-OFF, 8-OFF
CH thermostat 6-ON, 7-OFF, 8-OFF
Navien Thermostat 6-OFF, 7-ON, 8-OFF
OT RC 6-ON, 7-ON, 8-OFF
Not used 6-OFF, 7-OFF, 8-ON
Not used 6-ON, 7-OFF, 8-ON
Not used 6-OFF, 7-ON, 8-ON
Not used 6-ON, 7-ON, 8-ON
9.3.2 DHW Tank Demand Setting (System/
Regular)
You can set the DHW tank demand on the 4-3 DHW Call Signal
menu.
Item Description
4-1 DHW
Thermostat
Aquastat
4-2 Wiring
Centre
When VCU-10R (wiring centre) is connected
to the boiler
Note
The 4-2 Wiring Centre menu is displayed only when
the CH heat demand is set to Navien Thermostat
and the wiring centre (VCU-10R) is connected to the
boiler.
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