Viconics VT8300 Low Voltage Application Guide - Manual (Page 27)

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27 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
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VT8300
BO2 - Fan L BO3 - Fan M BO4 - Fan H RC (24 V
ac)
C (Common)
RH
BO8
- Aux Heat
OU9
- NC Cool V
UO10
- NC Heat V
UO11
- NO Cool V
UO12
- NO Heat V
BACnet + BACnet - BACnet REF UI 16 UI 17 Common UI 19 UI 20 - RS Common UI22 - SS
On / Off Control
ON / OFF ACTUATOR COOLING VALVE
IF NC IF NO Com.
COMM ON
24 VAC
FAN
FCU Low-voltage
TERMINAL BLOCK
S L
FRESH AIR DAMPER
Sequence of Operation and Wiring
Occupied Mode
Setpoints revert to those defined by occupied cooling and heating.
The auxiliary contact closes forcing fresh air damper to its 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 auxiliary contact opens causing fresh air damper to
close completely.
Occupied Override Mode
System reverts to occupied mode for duration determined by
“ToccTime” parameter. The auxiliary contact closes forcing fresh air
damper to its minimum position.
On Call for Cool
Cooling valve opens.
On Call for Heat
Cooling valve closes.
Options
• Wireless adapter modules for BACnet models are available.
(see Appendix B for network wiring).
• Remote wall mount or duct sensor ready.
• Can be configured for 4-pipe systems.
• 3 universal inputs can be used and configured for advanced
functionality as required by the application.
• Can be configured for two speed or three speed fan control.