User's Manual
Table Of Contents
- Viconics
- Part
- Numbers
- 1. (None): No function will be associated with the input
- 4. (Filter): a backlit flashing Filter alarm will be displayed on the thermostat LCD screen when the input is energized. It can be tied to a differential pressure switch that monitor filters
- 5. (Service): a backlit flashing Service alarm will be displayed on the thermostat LCD screen when the input is energized. It can be tied in to the AC unit control card, which provides an alarm in case of malfunction.
- 1. (None): No function will be associated with the input
- 2. (COC/NH) Change over dry contact. Normally Heat: Used for hot / cold water change over switching in 2 pipe systems.
- Contact closed = Cold water present
- Only used and valid if system is setup as 2 pipes. Parameter ( Pipe No ) set as 2 pipes.
- 3. (COC/NC) Change over dry contact. Normally Cool: Used for hot / cold water or air change over switching in 2 pipe systems.
- Contact closed = Hot water present
- Only used and valid if system is setup as 2 pipes. Parameter ( Pipe No ) set as 2 pipes.
- 4. (COS) Change over analog sensor: Used for hot / cold water or air change over switching in 2 pipe systems.
- Only used and valid if system is setup as 2 pipes. Parameter ( Pipe No ) set as 2 pipes.
- 5. (SS) Supply air sensor monitoring: Used for supply air temperature monitoring.
- Only used for network reporting of the supply air temperature. Has no internal function in the thermostat.
- Range is: 0 to 500
- This parameter (Personal Area Network Identification) is used to link specific thermostats to a single specific Viconics wireless gateway ( VWG ) For every thermostat reporting to a gateway ( maximum of 30 thermostats per gateway ), be sure you set the SAME PAN ID value both at the gateway and the thermostat(s).
- Range is: 10 to 26
- Viconics recommends using only the 2 last channels ( 25-2575MHz and 26-2580MHz )
- Range is: 0 to 254
- This parameter / function is not currently supported by the wireless thermostats.
- BI1
- Default value = None
- (None): No function will be associated with the input
- (Filter): a backlit flashing Filter alarm will be displayed on the thermostat LCD screen when the input is energized. It can be tied to a differential pressure switch that monitor filters
- (Service): a backlit flashing Service alarm will be displayed on the thermostat LCD screen when the input is energized. It can be tied in to the AC unit control card, which provides an alarm in case of malfunction.
- UI3
- Default value = None
- (None): No function will be associated with the input
- (COC/NH) Change over dry contact. Normally Heat: Used for hot / cold water or air change over switching in 2 pipe systems.
- Contact closed = Cold water or air present
- Only used and valid if system is setup as 2 pipes. Parameter ( Pipe No ) set as 2 pipes.
- (COC/NC) Change over dry contact. Normally Cool: Used for hot / cold water or air change over switching in 2 pipe systems.
- Contact closed = Hot water present
- Only used and valid if system is setup as 2 pipes. Parameter (Pipe No ) set as 2 pipes.
- (COS) Change over analog sensor: Used for hot / cold water or air change over switching in 2 pipe systems.
- Only used and valid if system is setup as 2 pipes. Parameter (Pipe No ) set as 2 pipes.
- (SS) Supply air sensor monitoring: Used for supply air temperature monitoring.
- 2.0 Pipes, will limit the number of sequences of operation available from 0 to 3
14
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 )