ENVI
®
Control
13
1.6.1.1 Comfort Heat Parameters and Descriptions
ENVI
®
Text Display
Function
Range
Units
Passcode
Level
CH Setpoint
Comfort Heat Setpoint
See Appendix I
°F
User
BLR OP (Boiler Operation)
Boiler / Pump Run settings
0-3
User
Off = 0,
On = 1,
Off/Pump On = 2, and
On/Pump On = 3
0 = Boiler Off, Pump Off
1 = Boiler Auto, Pump Auto
2 = Boiler Off, Pump Continuous
3 = Boiler Auto, Pump Continuous
CH Mode
Comfort Heat Operation Mode
0-8
SVC1
CH Mode 0 (Setpoint & Stat)
See 1.6.3.1 below
0
CH Mode 1 (Outdoor &Stat)
See 1.6.3.2 below
1
CH Mode 2 (Outdoor Control)
See 1.6.3.3 below
2
CH Mode 3 (Setpoint Control)
See 1.6.3.4 below
3
CH Mode 4 (Header & Stat)
See 1.6.3.5 below
4
CH Mode 5 (Header & Outdoor & Stat)
See 1.6.3.6 below
5
CH Mode 6 (Header & Outdoor)
See 1.6.3.7 below
6
CH Mode 7 (Analog Setpoint)
See 1.6.3.8 below
7
CH Mode 8 (Analog Firing Rate)
See 1.6.3.9 below
8
Hi ODA Temp
Maximum Outdoor Air Temperature
40
– 86
°F
SVC1
Min ODA SetP
Desired setpoint @ Hi ODA Temp
See Appendix I
°F
SVC1
Lo ODA Temp
Minimum Outdoor Air Temperature
-18
– 59
°F
SVC1
Max ODA SetP
Desired setpoint @ Lo ODA Temp
See Appendix I
°F
SVC1
ODA Shutdown
Outdoor Air Shutdown Temperature
45
– 140
°F
SVC1
Night Setback
Reduces CH Set point when enabled by
this value
0
– 58
°F
SVC1
Hysteresis On
On Differential (subtract this
temperature from the setpoint for start)
0
– 22
°F
SVC1
Hysteresis Off
Off Differential (add this temperature to
setpoint for off)
0
– 22
°F
SVC1
CH Post Pump time
Post Pump Time After Burner Shuts Off
0
– 2550
Sec
SVC1
Anti-Cyc Time
Restart Time Delay to Prevent Short
Cycling
0
– 2550
Sec
SVC2
Prop Band
Proportional Band
0
– 230
°F
SVC2
Integral Rate
Integral Rate
0
– 255
Sec
SVC2
Der Time
Derivative Time
0
– 255
Sec
SVC2
Pwr lmt step (ver. 8C51, 1043, 9820)
Power limit step limits the intervals of
rate while driving towards high fire (the
lower the value, the slower the step; the
higher the value, the faster the step)
0
– 255
units
SVC2
PMP on demand (ver. 79F2, 8C51, 1043, 9820)
With the NO selection the boiler pump
only runs when there is a need to fire
the boiler.
With the YES selection the boiler pump
runs when an enable signal is present.
This is overridden by the BLR OP
setting
Yes/no
SVC2
