Front Panel Dip Switches - Navien NCB-150E Installation & Operation Manual

7.2 Front Panel Dip Switches

Dip Switch 1 (Set of 10)
The DIP SW 1 on the front panel configures the temperature unit,
well pump, high altitude settings, and lime alarm cycle (for slave
units).
Before changing the settings, lift the rubber cover to access the
front panel DIP switches.
ON
1 2 3 4 5
Switch Function Setting
°C (Celsius)
Temperature
2
Unit
°F (Fahrenheit)
On
3
Well Pump
Off
0-1,999 ft (0-609 m)
2,000-5,399 ft
(610-1,645 m)
High
4 & 5
Altitude*
5,400-7,699 ft
(1,646-2,346 m)
7,700-10,100 ft
(2,347-3,078 m)
Unused
6 months
Lime Alarm**
9 & 10
12 months
24 months
* Above 2,000 ft (610 m), the boiler will derate by 4% for each 1,000 ft (305
m) of altitude gain.
Sets the lime alarm cycle of the slave units when a cascade configuration
**
is in use.
This boiler may be installed at elevations up to
Note
10,100 ft (3,078 m) for use with Natural Gas and
4,500 ft (1,370 m) for use with Propane. To use the
boiler at a specific altitude, the DIP switches should be
set as described above.
ON
6 7 8 9 10 1 2
2-ON
2-OFF
3-ON
3-OFF
4-OFF, 5-OFF
4-ON, 5-OFF
4-OFF, 5-ON
4-ON, 5-ON
9-OFF, 10-OFF
9-ON, 10-OFF
9-OFF, 10-ON
9-ON, 10-ON
Dip Switch 2 (Set of 2)
The DIP SW 2 on the front panel configures the cascade vent and
gas type settings.
Before changing the settings, lift the rubber cover to access the
front panel DIP switches.
ON
1 2 3 4 5 6
Switch Function Setting
Common Vent
1 Cascade Vent
Individual Vent
Natural Gas
2
Gas Type
Propane Gas
ON
7 8 9 10 1 2
NG LP
ON ON
2 2
1-OFF
1-ON
2-OFF
2-ON
Setting the DIP Switches
49