8.4 Terminal block 1 Connection
The terminal block 1 is located to the right of the panel. Power
supply, room thermostat, OpenTherm, and the outdoor
temperature sensor may be connected to the terminals of the
terminal block 1.
CAUTION
The terminal block 1 provides low-voltage connections only.
Do not connect external devices that require 230 VAC power
source.
8.4.1 Connecting the Room Stat or OpenTherm
The boiler is designed to be connected to a Room Stat or
OpenTherm. The Room Stat or OpenTherm cables are to be
connected to the terminals 1 and 2 of the terminal block 1.
1
2
3
4
5
6
8.3 Setting the DIP Switches and
Parameters for the Terminal blocks 1 and 2
The DIP SW on the front panel that configures source of the heat
demand is listed in the following table.
Switch
Function
Setting
4 & 5
Heat
Demand
Panel
4-OFF, 5-OFF
OpenTherm Remote
Control
4-ON, 5-OFF
Room Thermostat
4-OFF, 5-ON
230 VAC Room Stat
4-ON, 5-ON
The DIP SW 2 on the circuit board that configures the external
DHW tank is listed in the following table.
Switch
Function
Setting
1
DHW Tank
Used
1-ON
Unused
1-OFF
The parameters for the DHW Control mode are listed in the
following table.
Display
Description
Cylinder Temp Sensor
Cylinder Stat
Note
For more information, Refer to the “7. Setting the DIP
Switches” and “11.5 Setting the Parameters” to control
the boiler using the external CH Controller and DHW
Tank.
37
Connecting Electrical Supplies
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