Orion System System Manager TS II In-House - Manual (Page 50)

Zone
Zone
VCM, VCM-X & VCB-X Controllers
SMTS II Technical Guide 50
VCB-X Controllers
Temps
VCB-X Temperature Setpoints
Temperature Setpoints
Touch the < Temperatures> button to access the
Temperature Setpoint Screens.
Cooling Mode Enable
This setpoint is used to determine the Cooling Mode of operation in
reference to the HVAC Mode Enable Sensor. Above this temperature
plus the deadband, the unit will switch to Cooling Mode. High limit =
110ºF / 43.3ºC; Low limit = 1ºF / -17.2ºC. Default = 75ºF / 24ºC.
Heating Mode Enable
This setpoint is used to determine the Heating Mode of operation in
reference to the HVAC Mode Enable Sensor. Below this temperature
minus the deadband, the unit will switch to Heating Mode. High limit
= 110ºF / 43.3ºC; Low limit = 1ºF / -17.2ºC. Default = 70ºF / 21ºC.
Unoccupied Cooling Offset
During the Unoccupied Mode of Operation, this setpoint adjusts the
Cooling Mode Enable Setpoint up by this amount. If you do not want
Cooling to operate during the Unoccupied Mode, use the default set-
ting of 30°F / 16.66ºC for this setpoint. High limit = 30ºF / 16.66ºC (no
offset); Low limit = 0ºF / 0ºC; Default 30ºF / 16.66ºC.
Unoccupied Heating Offset
During the Unoccupied Mode of Operation, this setpoint adjusts the
Heating Mode Enable Setpoint down by this amount. If you do not
want Heating to operate during the Unoccupied Mode, use the default
setting of 30°F / 16.66ºC for this setpoint. High limit = 30ºF / 16.66ºC
(no offset); Low limit = 0ºF / 0ºC; Default = 30ºF / 16.66ºC.
Mode Selection Deadband
This Setpoint is added to and subtracted from the HVAC Mode Setpoints
to determine when the unit enters and leaves a mode of operation. High
limit = 10ºF / 5.55ºC (no offset); Low limit = 0ºF / 0ºC; Default = 0ºF
/ 0ºC.
Setpoints for Unit 0001
Cooling Mode Enable Setpoint
Unoccupied Heating Offset
Mode Selection Deadband
75
15
1
°F
Heating Mode Enable Setpoint
Unoccupied Cooling Offset
71
11
°F
°F
°F
°F
Temperatures
Page 1 of 9
Figure 94: VCB-X Temperature Screen 1
Control Mode High Alarm Offset
If the Temperature of the controlling sensor rises above the Occupied
Cooling Setpoint by this amount during the Cooling Mode, the controller
will generate a High Control Temp Alarm. The unit must be confi gured
for Space Temperature Control, Return Air Temperature Control, or as a
Single Zone VAV unit for this alarm to be generated. High limit = 50ºF
/ 27.77ºC; Low limit = 0ºF / 0ºC; Default = 30ºF / 16.66ºC.
Control Mode Low Alarm Offset
If the Temperature of the controlling sensor falls below the Occupied
Heating Setpoint by this amount during the Heating Mode, the controller
will generate a Low Control Temp Alarm. The unit must be confi gured
for Space Temperature Control, Return Air Temperature Control, or as a
Single Zone VAV unit for this alarm to be generated. High limit = 50ºF
/ 27.77ºC; Low limit = 0ºF / 0ºC; Default = 30ºF / 16.66ºC.
Hood On MUA Cooling Setpoint
If the Hood On switch closes, this is the Cooling Setpoint used to generate
the Cooling Mode based on the Outdoor Air Temperature. High limit
= 110ºF / 43.3ºC; Low limit = -1ºF / -17.2ºC; Default = 75ºF / 24ºC.
Hood On MUA Heating Setpoint
If the Hood On switch closes, this is the Heating Setpoint used to generate
the Heating Mode based on the Outdoor Air Temperature. High limit
= 110ºF / 43.3ºC; Low limit = -1ºF / -17.2ºC; Default = 70ºF / 21ºC.
MUA Outdoor Air Dewpoint Setpoint
On MUA confi gured units (100% or high percentage Outdoor Air units),
or if this is a unit in Hood On MUA operation, Dehumidifi cation will
be initiated if the Outdoor Air Dewpoint rises above this setpoint. High
limit = 80ºF / 26.6ºC; Low limit = 35ºF / 1.7ºC; Default = 55ºF / 12.8ºC.
Setpoints for Unit 0001
Control Mode High Alarm Offset
Hood On MUA Heating Setpoint
MUA Outdoor Air Dewpoint Setpoint
30
75
55
°F
Control Mode Low Alarm Offset
Hood On MUA Cooling Setpoint
30
75
°F
°F
°F
°F
Temperatures
Page 2 of 9
Figure 95: VCB-X Temperature Screen 2
Setpoints for Unit 0001
Economizer Enable Setpoint
Warmup Target Temperature
Space Sensor Slide Adjustment
72
70
0
°F
Preheat Enable Temperature
Low Ambient Temperature
30
30
°F
°F
°F
°F
Temperatures
Page 3 of 9
Figure 96: VCB-X Temperature Screen 3