Viconics VT7300 Installation Manual (First Release 1000 Series) User Manual
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aux cont *
Auxiliary contact function &
configuration
Default value = 0 Not Used
0 Aux contact function not used or used for reheat
IF SEQUENCE IS SET TO REHEAT THROUGH NETWORK OR LOCAL, Ignore
this parameter
( Sequence 2, 3 or 5 )
The output will directly follow the occupancy of the thermostat
1 Auxiliary NO, Occupied = Contact Closed / Unoccupied = Contact Opened
2 Auxiliary NC, Occupied = Contact Opened / Unoccupied = Contact Closed
Output to follow directly main occupancy and Fan on command
Typically used for 2 position fresh air damper applications.
3 Auxiliary NO, Occupied & Fan On = Contact Closed / Unoccupied & Fan On or
Off = Contact Opened
4 Auxiliary NC, Occupied & Fan On = Contact Opened / Unoccupied & Fan On or
Off = Contact Closed
Output to follow secondary network occupancy command
5 Auxiliary On/Off control through auxiliary network command. The output can be
commanded through the network for any required auxiliary functions through a
separate & dedicated network variable.
FL time *
For floating models
VT73xxC10xx only
Default value: 1.5 minutes
Floating actuator timing
Maximum stroke time of floating valve actuator.
0.5 to 9.0 in 0.5 minutes increment
cph *
On/Off devices cycles per hour
For On/Off models & sequences
Default value = 4 C.P.H.
Will set the maximum number cycles per hour under normal control operation. It
represents the maximum number of cycles that the equipment will turn ON and OFF
in one hour.
Note that a higher C.P.H will represent a higher accuracy of control at the expense
of wearing mechanical components faster.
3, 4, 5, 6,7 & 8 C.P.H.
RA/DA *
For Analog models
VT73xxF10xx only
Default value: DA signal
Reverse acting or Direct acting signal for Analog output signals
• DA = Direct acting
0 to 100 % = 0 to 10 Vdc
• RA = Reverse acting
0 to 100 % = 10 to 0 Vdc
Reheat *
Default value: 0 = 15 minute
Sets the reheat output time base
Valid only if reheat sequences are enabled
0= 15 minutes
1= 10 seconds for Solid state relays
UI3 dis
Display UI3 value.
Used as diagnostic / service help to troubleshoot and diagnose sensor operation
Supply or change over temperature when UI3 is configured as an analog input
( SS or COS )