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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VT8350
BO2 - F
an L
BO3 - F
an M
BO4 - F
an H
R
C (24 V
ac)
C (Common)
RH
BO8
- Aux Hea
t
OU9
- NC Cool V
UO10
- NC Hea
t V
UO11
- NO Cool V
UO12
- NO Hea
t V
B
A
Cnet +
B
A
Cnet -
B
A
Cnet REF
UI 16 UI 17 Common
UI 19 UI 20 - RS Common UI22 - SS
On / Off C
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
3 Speed Fan
or
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
open.
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 open.
On Call for Cool
Cooling valve opens.
On Call for Heat
Cooling 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 for two speed or three speed fan control.
1 speed Fan Operation
System Off
BO2, BO3 and BO4 are not energized
System On: (Fan modes)
• On: BO4 is energized.
• Auto: When there is no demand, BO4 is not energized. On
demand, BO4 will be energized.