Typical Applications - Viconics VT7300A5000 Manual

Typical applications

Schematic
2 pipe system cooling and/or heating: VT7300A5x00(x), VT7300C5x00(x) & VT7305C5x00(x) On / Off N.C. actuator
Normally Closed On/Off
Valve Cooling and/or Heating
3 Speed fan
Room Temperature
Control Thermostat
2 pipe system cooling and/or heating: VT7300C5x00(x) & VT7305C5x00(x) Floating actuator
Modulating Floating
Valve Cooling and/or Heating
3 Speed fan
Room Temperature
Control Thermostat
2 pipe system cooling and/or heating: VT7300F5x00(x) & VT7305F5x00(x) Analog actuator
Modulating Analog
Valve Cooling and/or Heating
3 Speed fan
Room Temperature
Control Thermostat
Wiring
24 Vac fan relays
High
Fan-H
Fan-M
Med
Fan-L
Low
UI3 COS
24 V~ Com
24 V~ Hot
BO2 N.C.
Optional supply water
temperature sensor
24 Vac fan relays
High
Fan-H
Fan-M Med
Fan-L
Low
UI3 COS
24 V~ Com
24 V~ Hot
BO1 Open
BO2 Close
Optional supply water
temperature sensor
24 Vac fan relays
High
Fan-H
Fan-M Med
Fan-L
Low
UI3 COS
0 V~ Com
24 V~ Hot
AO1
0 to 10
Vdc
Optional supply water
temperature sensor
Settings
Mandatory
• Pipe no = 2 pipes
• CntrltTyp = On/Off
• Fan Menu = 0 (L-M-H)
• FL time = as per actuator
If cooling only set::
• SeqOpera = 0 Cooling only
If heating only set::
• SeqOpera = 1 Heating only
If heat / cool auto-changeover with
a local water temperature sensor set:
•
SeqOpera = 0 Cooling only
•
UI3 = COS
Mandatory
• Pipe no = 2 pipes
• CntrltTyp = Floating
• Fan Menu = 0 (L-M-H)
• FL time = as per actuator
If cooling only set::
• SeqOpera = 0 Cooling only
If heating only set::
• SeqOpera = 1 Heating only
If heat / cool auto-changeover with
a local water temperature sensor set:
• SeqOpera = 0 Cooling only
• UI3 = COS
Mandatory
• Pipe no = 2 pipes
• Fan Menu = 0 (L-M-H)
• RA/DA = as per actuator
If cooling only set::
• SeqOpera = 0 Cooling only
If heating only set::
• SeqOpera = 1 Heating only
If heat / cool auto-changeover with
a local water temperature sensor set:
• SeqOpera = 0 Cooling only
• UI3 = COS
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