Programming the vcm controller – Orion System VCM User Manual

Page 30

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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

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