Manual

51
Outdoor Reset Control
Table 3: Outdoor Air Temperature Reset (Example)
90
20
60
100
140
180
70
68
50
30
10 0
-10
8
6
Boiler Temperature ( F)
Outdoor Air Temperature ( F)
Parameter 4 Set Point
Graph 1: Outdoor Air Temperature Reset Curve (Example)
Outdoor Boiler Target Temp.
Temperature Based on Outdoor Temp.
0ºF or Lower 140ºF
23ºF 122ºF
40ºF 108ºF
68ºF or Higher 86ºF
Graph 1 illustrates Parameter 4 adjusted to 140ºF target temperature at 0ºF outdoor
air temperature.
Note: Factory setting of Parameter 4 is 186ºF
.