Orion System System Manager TS II In-House - Manual (Page 30)

VCM & VCM-X Controllers
SMTS II Technical Guide 30
VCM & VCM-X Confi guration
Broadcast Outdoor Air to All Other Units
Select this item to broadcast the VCM-X’s Outdoor Air Temperature Read-
ing to other HVAC units on the local loop if they are not equipped with
their own Outdoor Air Temperature sensors. A network communications
device is needed in order for this feature to operate.
Broadcast Relative Humidity to All Other Units
Select this item if to have the VCM-X broadcast its Outdoor Air Humid-
ity reading to other HVAC units if they are not equipped with their own
Outdoor Air Humidity sensors. A network communications device is
required in order for this feature to operate.
Force Max Damper During Warm-Up & Night Heat
Select this item to ensure the VAV/Zone Controllers will drive their
dampers to the Max Airfl ow Damper Position during Morning Warm-up.
This is important to allow the proper amount of airfl ow for Heating in
the HVAC unit.
Force Fixed Damper During Warm-Up & Night Heat
Select this item to have all VAV/Zone controllers connected to this VCM-
X controller forced to their “Fixed Airfl ow” Position during the Morning
Warm-up Mode of operation. See the VAV/Zone controller Setpoint
Screens for setting of the “Fixed Airfl ow” position.
One HVAC Unit with Boxes on Multiple Loops
This selection allows other VAV/Zone controllers connected on additional
local loops to receive the required broadcasts. This is only allowed when
you have a single VCM-X controller with VAV/Zone controllers on
multiple loops. Other VCM-X or add-on devices may be connected, but
no other VCM-X with VAV/Zone controllers can be connected on the
system. Select this item to have real time, supply air, and main supply
fan and heating status broadcast to all local loops on the entire system,
not just the local loop the VCM-X controller is on. This is normally only
required if you have a large HVAC unit that requires more than the 58
VAV/Zone controllers normally allowed on the local loop.
Modulating Cooling Output
Select either a 0-10 VDC signal or 2-10 VDC signal to a Modulating
Cooling source such as a Chilled Water Valve or select a 1.5-5 VDC
signal to a Digital Compressor.
Modulating Heating Output
Select 0-10 VDC signal or 2-10 VDC signal to a Modulating Heating
source such as a Hot Water Valve or SCR Electric Heater.
Figure 44: VCM-X Confi guration Screen 10 Figure 43: VCM-X Confi guration Screen 9
Figure 45: VCM-X Confi guration Screen 11