Navien NCB-190/060H, Installation & Operation Manual

Page: 72 / 145

72 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.
●
Configure only the DIP switches that require
adjustment according to the instructions
in this manual. Do not adjust any other DIP
switches.
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 (6 switch unit)
The DIP SW 1 on the circuit board configures the
operation status.
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
6.2 Dip Switch 2 (8 switch unit)
The DIP SW 2 on the circuit board configures the
gas type, temperature control modes, country, and
enables or disables the space heating thermostat.
1 2 3 4 5 6
O
N
O
N
1 2 3 4 5 6 7 8
Switch Function Setting Comment
1 Gas Type
Natural Gas 1-OFF
Refer to
Table 1 in
“12.1 Gas
& High
Altitude
Conversion”
on page
123.
Propane Gas 1-ON
2 & 3
High
Altitude
0-1,999 ft
(0-609 m)
2-OFF,
3-OFF
2,000-5,399 ft
(610-1,645 m)
2-ON,
3-OFF
5,400-7,699 ft
(1,646-2,346 m)
2-OFF,
3-ON
7,700-10,100 ft
(2,347-3,078 m)
2-ON,
3-ON
4
Well
Pump
Used 4-ON -
Unused 4-OFF -
5 & 6 Country US/Canada
5-OFF,
6-OFF -
7
Space
Heating
Thermostat
Used 7-OFF -
Unused 7-ON -
8
Exhaust
Temperature
Control
Used 8-OFF -
Unused 8-ON -
6. Setting the DIP Switches