Operating instructions

57
Outdoor Reset Control
Changing Outdoor Reset Parameters
1. Press the “”button at the display panel
for approximately 2 to 3 seconds until main
display begins to flash.
2. Press the “”button repeatedly to scroll
through the list of parameters. The operating
display will show the parameter number
and main display will show the parameter
setting.
3. To modifiy a parameter press the or
buttons.
4. Press the button to close the setting
menu and store the changes.
The appliance control module has now been
reprogrammed with the desired parameter values.
Pressing the ON/OFF button will exit
the parameter setting mode without stor-
ing the parameter changes.
NOTICE
90
20
60
80
100
140
70
64
50
30
10 0
-10
77
Boiler Temperature ( F)
Outdoor Air Temperature ( F)
Boiler CH Set Point
Parameter 5
Set Point
Parameter 7 Setting
Parameter 6 Setting
Graph 1: Outdoor Air Temperature Reset Curve (Example)
Table 7: Outdoor Air Temperature Reset (Example)
Outdoor
Temperature
Appliance target Temp.
Based on Outdoor Temp.
10ºF or Lower 140ºF
30ºF 117ºF
50ºF 93ºF
64ºF or Higher 77ºF
Graph 1 illustrates Appliance CH Setpoint adjusted to 140ºF target temperature at 10ºF outdoor
air temperature
Note: Factory setting of CH set point is 186ºF