Setting The Dip Switches - Vesta VRC-100 Installation Manual

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
EEP ROM data change switch
Long flue Length 1
Long flue Length 2
Cascade operation
Minimum heat capacity operation
Maximum heat capacity operation
External pump operation
ON: No temperature limit for exhaust gas
OFF: Temperature limit for exhaust gas
ON: Enable EEP ROM data change
OFF: Disable EEP ROM data change
DIP S/W #3 DIP S/W #4
OFF OFF
OFF ON
ON OFF
ON ON
ON : Cascade operation
OFF: No cascade operation
ON : Minimum operation
OFF : Normal operation
ON : Maximum operation
OFF : Normal Operation
ON: External pump operation
OFF: No external pump operation
FLUE LENGTH
2" PVC 3" PVC
Up to 15' Up to 150'
Up to 30'
Up to 45' N/A
Up to 60'
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Setting the DIP Switches