79
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 circuit board (PCB). DIP switches are used to control the
functionality of the boiler. Set the DIP switches appropriately, based on the installation environment.
6.1 DIP Switch 1 (Set of 6 Switches)
The DIP SW1 (Set of 6 Switches) on the circuit board configures the operation status and model settings.
1 2
3 4 5 6
O
N
O
N
1 2 3 4 5 6 7 8
Switch Function
Setting
1 & 2
Operation Status
Normal Operation
1-OFF, 2-OFF
2-stage MAX
1-ON, 2-OFF
1-stage MIN
1-OFF, 2-ON
1-stage MAX
1-ON, 2-ON
5 & 6
Model Setting
NFC-250/200H
5-OFF, 6-OFF
NFC-250/175H
5-ON, 6-OFF
6. Setting the DIP Switches
Summary of Contents for NFC-250/175H
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