Viconics VT7300 Installation Manual (Previous Release 5000 Series PIR Ready) - Manual (Page 14)

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CntrlTyp
Control type for Triac models
Default is: Floating Defines the type of control output for the type of valves installed
VT7350C10xx, VT7300C10xx, VT7355C10xx and VT7305C10xx only
On/Off is for normally opened or normally closed 24 Vac 2 position valves
Floating is for modulating 3 wires control of 24 Vac floating valves
SeqOpera Sequence of operation
Default is: Sequence #1
System = 2 Pipes System = 4 Pipes
0 = Cooling Only Yes access Yes access
1 = Heating only Yes access Yes access
2 = Cooling With Reheat Yes access Yes access
3 = Heating With Reheat Yes access Yes access
4 = Cooling / Heating 4 pipes No access Yes access
5 = Cooling / Heating 4 pipes with
Reheat No access Yes access
For single output applications, the system access is also limited if UI3 is configured
for local changeover COS, COC/NC or COC/NC. The system mode available for
the local configuration or network write is then limited by the current water
temperature detected by the UI3.
Fan Menu
Mode button menu configuration
Default is: Menu #4 Menu presented are dependent on model used and sequence of operation
selected
0 = Low-Med-High 3 Speed configuration using 3 fan relays ( L-M-H )
1 = Low-High 2 Speed configuration using 2 fan relays ( L-H )
2 = Low-Med-High-Auto 3 Speed configuration with Auto fan speed mode using 3 fan relays ( L-M-H )
3 = Low-High-Auto 2 Speed configuration with Auto fan speed mode using 2 fan relays ( L-H )
4 = On-Auto Single Speed configuration. Auto is for Fan on demand / On is On all the time
DHumiLCK
Dehumidification lockout
VT735xX5x00(x) models only
Default value: On = Authorized Typically toggled through the network.
This variable enables or disables dehumidification based on central network
requirements from the BAS front end
On = Dehumidification Authorized
Off = Dehumidification Not Authorized
%RH set
Dehumidification setpoint
Default is 50 % RH Used only if dehumidification sequence is enabled:
Range is: 30-95% RH
VT735xX5x00(x) models only
DehuHyst
Dehumidification Hysterisys
Default is 5 % RH Humidity control hysterisys. Used only if dehumidification sequence is enabled:
Range is: 2 to 20% RH
VT735xX5x00(x) models only
DehuCool
Maximum Dehumidification
Cooling output
Default is 100 % Maximum cooling valve position when dehumidification is enabled. This can be
used to balance smaller reheat loads installed in regards to the capacity of the
cooling coil.
Range is: 20 to 100 %
VT735xX5x00(x) models only
St-By TM
Stand-by Timer value
Default 0.5 hours Time delay between the moment where the PIR cover detected the last movement
in the area and the time which the thermostat stand-by mode and setpoints
become active.
Range is: 0.5 to 24.0 hours in 0.5hr increments
Unocc TM
Unoccupied Timer value
Default 0.0 hours Time delay between the moment where the thermostat toggles to stand-by mode
and the time which the thermostat unoccupied mode and setpoints become active.
The factory value or 0.0 hours: Setting this parameter to its default value of 0.0
hours disables the unoccupied timer. This prevents the thermostat to drift from
stand-by mode to unoccupied mode when PIR functions are used
Range is: 0.0 to 24.0 hours in 0.5hr increments
St-By HT
Stand-by heating setpoint
Default value = 69 °F The value of this parameter should reside between the occupied and unoccupied
heating setpoints and make sure that the difference between the stand-by and
occupied value can be recovered in a timely fashion when movement is detected
in the zone.
Stand-by heating setpoint range is: 40 to 90 °F ( 4.5 to 32.0 °C )