112 Operating the Boiler
Press the Back button (
) to return to the previous
screen or menu.
Item
Description
1. SH Set Temp
Set space heating target
temperature (°F).
●
The setting range varies
depending on the heating
control type:
-
Supply Temperature or
Sys Supply Temperature:
104°F (40°C, Absolute
MIN) to 180°F (82°C,
Absolute MAX)
-
Return Temperature or
Sys Return Temperature:
86°F (30°C, Absolute
MIN) to 149°F (65°C,
Absolute MAX)
●
Default: 180°F (82°C)
2. Zone Settings
Set between Zone Pump or
Zone Valve System.
●
Default: Zone Pump
System
3. Outdoor Reset
ON/OFF
Default: Disable
3-1. Outdoor Reset
Curves**
Select a heatload type of the
Outdoor Reset Control.
1: Finned Tube Baseboard
2: FAN Coil
3: Cast Iron Baseboard
4: Low Mass Radiant
5: High Mass Radiant
6: Radiator
7: Custom (set by installer)
3-2. Outdoor High
Temp Set**
Set the maximum
temperature for the Outdoor
Reset Control.
●
Setting range: [MIN Set-
point + 9°F (5°C)] – 104°F
(40°C)
●
Default: 70°F (21°C)
3-3. Outdoor Low
Temp Set**
Set the maximum
temperature for the Outdoor
Reset Control.
●
Setting range: -4°F (-20°C)
– [MAX Set-point – 9°F
(5°C)]
●
Default: 14°F (-10°C)
Item
Description
27. Boost Interval
Time
Boost interval set time (min)
28. High Altitude
Sea Level (0 - 2,000 ft)
Level 1 (2,000 - 5,400 ft)
Level 2 (5,400 - 7,700 ft)
Level 3 (7,700 - 10,100 ft)
29. Well pump
Well pump status
OFF - Unused, ON - Used
30. Model
Model type
31. Gas
Fuel type (NG/LPG)
32. Main F/W Ver
Main firmware version
33. Panel F/W Ver
Controller panel firmware
version
11.5.2 Setting the Space Heating
Operation
To set the boiler’s space heating operation, press the
Menu button (
), and then select “2. Space Htg
Operation”.
Rotate the Command dial (
) to switch between
the list items or to increase/decrease setting values.
Press the Command dial (
) to select an item or to
confirm after making changes.
Summary of Contents for NFC-250/175H
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