Viconics VT8300 Low Voltage Application Guide - Manual (Page 17)

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17 Fan Coil Unit Controller Series Application Guide
Viconics Technologies Inc. | 9245 Langelier Blvd. | St.-Leonard | Quebec | Canada | H1P 3K9 | Tel: (514) 321-5660 | Fax: (514) 321-4150
028-0444-01 www.viconics.com | [email protected] February 2015
Tx/Rx
7 Vdc
Com
RUI 1
SCom
RBI 2
SS
RS
1
2
3
4
5
6
7
8
BACnet+ BACnet- BACnet REF UI 16 - BI1 UI 17 - BI2 SCom
Tx / Rx 7 VDC
Com
BI1 (Window) SCom
SC3504E5000
VTR8300
Sequence of Operation and Wiring
Occupied Mode
Setpoints revert to those defined by occupied cooling and heating.
Stand-by Mode (only available when PIR motion detector
sensor is used)
Setpoints revert to those defined by stand-by cooling and heating.
Unoccupied Mode
Setpoints revert to those defined by unoccupied heating and
cooling.
Occupied Override Mode
System reverts to occupied mode for duration determined by
“ToccTime” parameter.
On Call for Cool
If supply water temperature is less than 24°C (75F), cooling valve
opens to maintain room temperature, else the valve closes.
On Call for Heat
If supply water temperature is greater than 25°C (77F), heating valve
opens to maintain room temperature, else the valve closes.
Supply Air Sensor
Only used for monitoring. Shows automatically if sensor is
connected.
Wired Window Switch
The window switch automatically locks out heating/cooling when
window opens.
Options
• Wireless adapter modules for BACnet models are available.
(see Appendix B for network wiring).
• Models available with factory installed PIR sensor.
• Remote wall mount or duct sensor ready.
• Can be configured for 2-pipe systems with changeover.
• Binary inputs can be configured to control occupancy via door
or window contact, remote night setback, or provide alarms for
service or filter monitoring.
• Universal input can be configured for changeover sensor.