Programming the vcm controller – Orion System VCM User Manual
Page 30

Technical Guide
Operator Interfaces
30
Setpoint Screen #26
VCM Spts ID 59
Air To Air Heat Pump
Auxiliary Heating
Delay: 3 Min
If your VCM is configured to operate as an Air to Air Heat Pump, the
Air to Air Heat Pump Auxiliary Heating Delay Setpoint can be config-
ured to provide a time delay period before Auxiliary Heating Stages can
be activated once activation of the Compressor Heating Stages have
been initiated.
Description
Minimum
Default
Maximum
Air To Air Heat Pump
Auxiliary Heating
Delay
0
3 Min
30 Min
Setpoint Screen #27
VCM Spts ID 59
Internal Schedule
Optimal Start Soak
Multiplier: 0.0
The Internal Schedule Optimal Start Soak Multiplier Setpoint is a mul-
tiplier which if set to a number greater than 0 will be used as a multi-
plier for calculating the Optimal Start Time for the HVAC unit. This
multiplier is only applied if the unit has been off for more than 24 hours.
See the VCM Technical Guide for more detailed information regarding
the Optimal Start. This multiplier is only applied if you are using the
VCM Internal Schedule.
Description
Minimum
Default
Maximum
Internal Schedule
Optimal Start Soak
Multiplier
0.0
0.0
5.0
Setpoint Screen #28
VCM Spts ID 59
Sensor Calibration
SPC: xx.x 0.00
°
F
SAT: xx.x 0.00
°
F
If one or more of your Temperature Sensors is reading incorrectly, you
can use this option to enter an offset temperature to adjust the Sensor’s
Temperature. Enter a positive Sensor Calibration value to raise the Space
Temperature and/or Supply Air Temperature Sensor reading and a nega-
tive value to lower the Sensor reading. See the next Setpoint Screen for
Return Air Temperature and Outdoor Air Temperature Sensor calibra-
tion.
Description
Minimum
Default
Maximum
Sensor Calibration SPC
-100.0
°
F
0.0
°
F
+100.0
°
F
Sensor Calibration SAT
-100.0
°
F
0.0
°
F
+100.0
°
F
Setpoint Screen #29
VCM Spts ID 59
Sensor Calibration
RAT: xx.x 0.00
°
F
OAT: xx.x 0.00
°
F
If one or more of your Temperature Sensors is reading incorrectly, you
can use this option to enter an offset temperature to adjust the Sensor’s
Temperature. Enter a positive Sensor Calibration value to raise the Re-
turn Air Temperature and/or Outdoor Air Temperature Sensor reading
and a negative value to lower the Sensor reading. See the previous screen
for Space Temperature and Supply Air Temperature Sensor calibration.
Description
Minimum
Default
Maximum
Sensor Calibration RAT
-100.0
°
F
0.0
°
F
+100.0
°
F
Sensor Calibration OAT
-100.0
°
F
0.0
°
F
+100.0
°
F
Programming The VCM Controller