Viconics VT8300 Low Voltage Application Guide - Manual (Page 13)

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13 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
9
OCC -
7Vdc
RELAY
COIL
SC3514E5000
VTR8300
BACnet+ BACnet- BACnet REF UI 16 - BI1 UI 17 - BI2 SCom
Tx / Rx 7 VDC
Com
Sequence of Operation and Wiring
Occupied Mode
Setpoints revert to those defined by occupied cooling and heating.
The occupancy output opens fresh air damper to minimum position.
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. The fresh air damper closes.
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.
Options
• Wireless adapter modules for BACnet models are available.
(see Appendix B for network wiring).
• Remote wall mount or return duct sensor ready.
• Binary inputs can be configured to control occupancy via
door or window contact, remote motion sensor, remote night
setback, or provide alarms for service or filter monitoring.