Navien NFC-175, Руководство по установке и эксплуатации

Страница: 60 / 124

60 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 (6 switch unit)
The DIP SW 1 on the circuit board configures the operation status
and model/capacity 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
3 & 4 Reserved - -
5 & 6 Model
NFC-200 5-OFF, 6-OFF
NFC-175 5-ON, 6-OFF
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
103
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