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
RC
(24 V
ac)
C (
Common)
RH
BO8 - A
ux Hea
t
UO9 -
Close
Cool V
UO10 -
Close Hea
t V
UO11 -
Open C
ool
V
UO12 -
Open Hea
t V
BA
Cnet +
BA
Cnet -
BA
Cnet REF
UI 16 UI 17 Common UI 19 UI 20 - RS Common UI22 - SS
On / Off Control
or
+ 3 Speed Fan
COOLING VALVE
IF NC IF NO Com.
COMM ON
24 VAC
FAN HI
FAN MED
FAN LO
FCU Low-voltage
TERMINAL BLOCK
S
L
Sequence of Operation and Wiring
Occupied Mode
Setpoints revert to those defined by occupied cooling and
heating. The changeover sensor sends supply air temperature to
controller.
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
Cooling valve opens. Electric heat stays Off.
On Call for Heat
Valve closes. Electric heat activates.
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 to single or two 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.