Navien NCB-180 Installation & Operation Manual page 76

Outdoor Temperature Sensor Installation Guidelines
Supply Set-point
Heat Load
Range
Finned Tube 120-180°F
Baseboard (default) (48.5-82°C)
140-180°F
Fan Coil
(60-82°C)
100-170°F
Cast Iron Baseboard
(37.5-76.5°C)
80-140°F
Low Mass Radiant
(26.5-60°C)
80-120°F
High Mass Radiant
(26.5-48.5°C)
120-170°F
Radiators
(48.5-76.5°C)
Supply Control
Custom (Absolute MIN/
MAX set point)
Outdoor Temperature Range and Default Temperature Settings
Set Point Range
Outdoor Low -4 to 59°F
Temperature (-20 to 15°C)
Outdoor Low
Outdoor High Temperature Set
Temperature Point + 41°F (5°C)
to 104°F (40°C)
Return Set-point
Range
101-147°F
(38-63.5°C)
116-147°F
(46.5-63.5°C)
86-139°F (30-59°C)
70-116°F
(21-46.5°C)
70-101°F (21-38°C)
101-139°F
(38-59°C)
Return Control
(Absolute MIN/
MAX set point)
Remarks
Default: 14°F
(-10°C)
Default: 70°F (21°C)
Appendixes 75