Orion System VCM-X/RNE Controller - Manual (Page 28)

Zone
Zone
VCM-X CONFIGURATION
VCM-X / RNE Operator Interface SD 28
VCM-X Confi guration Screens
Confi guration Screen #17 - Modulating
Heating Reverse Acting
VCM-X Cnfg ID 59
Mod Heating
Rev Acting: NO
Use < Or > To Change
Select YES if the Modulating Heat Source requires 0 VDC to open and
10 VDC to close. Default is NO.
Confi guration Screen #18 - Modulating
Heating Proportional Window
VCM-X Cnfg ID 59
Mod Heating
Prop. Window.: 10ºF
Time Period..: 5 s
The Modulating Heating Proportional Window is the control range of
the Modulating Signal above and below the Active Supply Air Setpoint.
The larger the Modulating Heating Proportional Window, the smaller
the signal adjustment per Time Period will be for each ºF the supply air
is from the Active Supply Air Temperature Setpoint. The Time Period is
the delay before another signal increase or decrease can be made and is
user-adjustable. Short Time Periods may cause hunting of the Modulat-
ing Signal. Defaults are 10ºF and 5 seconds.
Confi guration Screen #19 - Modulating Cooling
Output Signal
VCM-X Cnfg ID 59
Mod Cooling
Output Signal: 0-10V
Use < Or > To Change
Select 0-10 VDC as the output signal for a Modulating Cool source
such as a Chilled Water Valve. Select 2-10 VDC as the output signal to
a Chilled Water Valve. Default is 0-10 VDC.
Confi guration Screen #20 - Digital Compressor
Signal
VCM-X Cnfg ID 59
Digital Compressor
Signal 1-5V : NO
Use < Or > To Change
Select YES if the HVAC unit is equipped with a Digital Compressor.
Default is NO.
Confi guration Screen #21 - Modulating Cooling
Reverse Acting
VCM-X Cnfg ID 59
Mod Cooling
Rev Acting: NO
Use < Or > To Change
Select YES if the Modulating Cooling Source requires 0 VDC to open
and 10 VDC to close. You cannot use a Reverse Acting Signal if a Digital
Compressor is being used. Default is NO.
Confi guration Screen #22 - Modulating Cooling
Proportional Window
VCM-X Cnfg ID 59
Mod Cooling
Prop. Window.: 10ºF
Time Period..: 30 s
The Modulating Cooling Proportional Window is the control range of
the Modulating Signal above and below the Active Supply Air Setpoint.
The larger the Modulating Cooling Proportional Window, the smaller
the signal adjustment per Time Period will be for each ºF the supply air
is from the Active Supply Air Temperature Setpoint. The Time Period is
the delay before another signal increase or decrease can be made and is
user-adjustable. Short Time Periods may cause hunting of the Modulat-
ing Signal. Defaults are 10ºF and 30 seconds.
Confi guration Screen #23 - Head Pressure
Module Installed
VCMX-M/HP Cnfg ID 102
Head Pressure
Module: NO
Use < Or > To Change
Select YES if you have a Head Pressure Module installed. This screen
only applies if using the VCM-X E-BUS Controller. Default is NO.
Confi guration Screen #24 - Type of Head
Pressure Module Installed
VCMX-M/HP Cnfg ID 102
Type of Head Pr.
Module: 1 Condenser
Use < Or > To Change
Select 1 Condenser or 2 Condenser if you have a Head Pressure Module
installed. This screen only applies if using the VCM-X E-BUS Control-
ler. Default is 1 Condenser.