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Service Manual
Singular Combi Boiler - BTC 439002301 A (12.2021)
5 Setting the DIP Switches
The boiler has a DIP switch on the main circuit board (PCB)
Set the DIP switch appropriately, depending on the installation environment.
Switch Function
Temperature limit switch for exhaust gas
ON: No temperature limit for exhaust gas
OFF: Temperature limit for exhaust gas
EEP ROM data change switch
ON: Enable EEP ROM data change
OFF: Disable EEP ROM data change
Long fl ue Length 1
DIP S/W #3 DIP S/W #4
FLUE LENGTH
2” PVC 3” PVC
OFF OFF Up to 15' Up to 150'
Long fl ue Length 2
OFF ON Up to 30'
N/AON OFF Up to 45'
ON ON Up to 60'
N/A N/A
Minimum heat capacity operation
ON : Minimum operation
OFF : Normal operation
Maximum heat capacity operation
ON : Maximum operation
OFF : Normal Operation
N/A N/A
Table 4 Dip Switches