38 Setting the DIP Switches
CAUTION
Do not remove the front cover unless the power to the
boiler is turned off or disconnected. Failure to do so may
result in electric shock.
The boiler has 2 sets of DIP switches on the main controller
(PBA) and 2 sets of DIP switches on the front panel. DIP switches
are used to control the functionality of the boiler. Set the DIP
switches appropriately, based on the installation environment.
Note
To access the main controller (PBA), refer to “9.1
Accessing the Main Controller (PBA)” on page 41.
7.1 PCB DIP Switches
DIP Switch 1 (Set of 6)
The DIP SW 1 on the circuit board configures operation status,
and boiler model/capacity.
1 2 3 4 5 6
O
N
5
SW1 SW2
Switch 1 Function Setting
1 & 2
Operation
Status
Normal (Default) 1-OFF, 2-OFF
Stage 1 (Low)
1-OFF, 2-ON
1-ON, 2-ON
Stage 2 (High) 1-ON, 2-OFF
3 Boiler Type
Solo
(System/Regular)
3-OFF
Combi 3-ON
4 Not Used
Internal 4-OFF
External 4-ON
Switch 1 Function Setting
5 & 6 Capacity
21 kW 5-OFF, 6-OFF
28 kW 5-ON, 6-OFF
36 kW 5-OFF, 6-ON
Not Used 5-ON, 6-ON
7.2 Front Panel DIP Switches
DIP Switch (Set of 8)
The DIP SW 2 on the circuit board configures the fuel selection,
country, makeup water method, and source of the heat demand.
O
N
1 2 3 4 5 6 7
8
SW1 SW2
Switch 2 Function Setting
1 & 2 Fuel Type
Kerosene 1-OFF, 2-OFF
Light Oil* 1-ON, 2-OFF
Not Used 1-OFF, 2-ON
Not Used 1-ON, 2-ON
3 Not Used
Not Used 3 - OFF
Not Used 3 - ON
4 Not Used
Not Used 4 - OFF
Not Used 4 - ON
5 Not Used
Not Used 5 - OFF
Not Used 5 - ON
* Refer to the manufacturer’s instructions when using light oil.
7. Setting the DIP Switches
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