Viconics VT8300 Series, Application Manual

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Viconics Technologies Inc. www.viconics.com sales@viconics.com
028-0444-06 November 2018
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VT83X0
BO2 - F
an L
BO3 - F
an M
BO4 - F
an H
R
C (24 V
ac)
C (Common)
RH
BO8 - A
ux Hea
t
UO11
- Analog Hea
t
UO12
- Analog Cool
B
A
Cnet +
B
A
Cnet -
B
A
Cnet REF
UI 16 UI 17 Common UI 193 UI 20 - RS Common UI22 - SS
Modulating C 3-Speed Fan
COOLING VALVE
0-10 V 24V Com.
COMM ON
24 VAC
FAN HI
FAN MED
FAN LO
FCU Low-voltage
TERMINAL BLOCK
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
Analog valve modulates allowing cool air to flow to reach
setpoint.
On Call for Heat
Valve closes.
Options
• Wireless adapter modules 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 to two or three speed fan.
3 speed Fan Operation
System Off
BO2, BO3 and BO4 are not energized
System On: (Fan modes)
• BO2 is energized.
• BO3 is energized
• BO4 is energized.
• Auto: When there is no demand, BO2, BO3 and BO4 are
not energized. On demand, system will automatically switch
“On” low (BO2), medium (BO3) or high (B04) speed.