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1
Service
Table 1C Outdoor Reset (This table lists control module parameters; use the sub-tab under the Setup tab to access
them.)
Menu
(as shown on the LCD screen)
Set point: Cold Day
Set point: Warm Day
Outdoor Temperature: Cold Day
Outdoor Temperature: Warm Day
Outdoor Temp: Shutdown
Outdoor Temp: Diff
Shift OA Reset Curve
Boost Time
Boost Temperature
Outdoor Reset
Outdoor Reset Curve
The Outdoor Temp Min and Set Point Max define the
upper point of the Outdoor Reset Curve. The lower point
is defined by the Outdoor Temp Max and Set Point Min.
The curve will level out at Set Point Min for temperature
warmer than Outdoor Temp Max. The Space Heat 1 Set
Point (User Set Point) will serve as the maximum set point
generated by the Outdoor Reset, regardless if this value
is higher or lower than Set Point Max. The curve will
continue increasing set point above Set Point Max as the
outdoor temperature falls lower than the Outdoor Temp
Min if the User Set Point is higher than the Set Point Max.
The curve will be shortened such that the outdoor reset
set point will not reach Set Point Max in case the User Set
Point is below Set Point Max. In this case, the maximum
set point will be achieved at some outdoor temperature
higher than Outdoor Temp Min.
Outdoor Temperature: Shutdown
When the outdoor temperature rises above this point, the
control will block all SH demands (DHW demands will still
be active).
(continued)
Parameter Name
Min
Value
32
32
-22
-22
32
0
-27
0
0
Outdoor Temperature: Differential
The outdoor temperature differential parameter is the number
of degrees the outside air temperature must fall below the
outdoor shutdown parameter setting before the boiler will
respond to a SH demand.
Shift OA Reset Curve
The shift reset curve parameter shifts the actual set point above
or below the calculated set point by the number of degrees in
this parameter.
Boost Time
The boost time parameter sets the amount of time that must
elapse with a SH demand before the water temperature
calculated set point will be increased.
Boost Temperature
If a SH demand lasts longer than the programmed boost
time delay setting and there have been no DHW demands,
the control will increase the water temperature set point by
the amount in this parameter. If the SH demand continues
through another time period, the set point will be increased
again. This will continue until either the SH demand ends,
a maximum of 20 increases has occurred, or the maximum
set point has been reached. Once the SH demand has been
satisfied the set point will revert back to its calculated setting.
Service Manual
Max
Default
Value
Value
185
180
185
110
120
25
120
70
122
80
48
10
27
0
250
0
30
0
17
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