Installation Guide

21
Figure 18: Boiler Display
boiler temperature. When a change is made to the
setpoint knob the display will brighten and show
the setpoint. Factory programmed with High Limit
Setpoint of 140°F.
130
140
150
160
170
180
190
-10 0 10 20 30 40 50 60 70 80
Boiler Operating Setpoint (°F)
Outdoor Temperature (°F)
Outdoor Reset
25°F (default)
0°F Diff. Setting
2. Outdoor Reset Differential Setpoint (when outdoor
sensor installed)
The Outdoor Reset Differential Setpoint is user
adjustable by turning the bottom knob labeled
“OUTDOOR RESET DIFF”. Adjustment range is
0°F to 50°F. When no outdoor sensor is present, the
IBC uses the user setpoint as the operating setpoint.
When an outdoor temperature sensor is attached,
the IBC adjusts the Conditioned space demand
operating setpoint based on outdoor temperature.
See graph below.