Viconics VT7200 Installation Manual (First Release 1000 Series) - Manual (Page 3)

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Binary input #1 can be configured for the following
functions:
1. (None):
No function will be associated with the input
2. (Rem NSB): remote NSB timer clock input. The
scheduling will now be set as per the binary input. It
provides low cost setback operation via a dry
contact
• Contact opened = Occupied
• Contact closed = Unoccupied
3. (Motion NO): remote NSB using a motion detector.
The occupancy will now be set as per the binary
input. Contact opened = Unoccupied. When the
contact closes momentarily, the thermostat goes into
occupied mode for the time specified by the
ToccTime timer. The timer can reset at the end of its
cycle if new movements are detected in the area.
4. (Motion NC): remote NSB using a motion detector.
The occupancy will now be set as per the binary
input. Contact closed = Unoccupied. When the
contact opens momentarily, the thermostat goes into
occupied mode for the time specified by the
ToccTime timer. The timer can reset at the end of its
cycle if new movements are detected in the area.
5. (Window) EMS: Forces the system to disable any
current heating or cooling action by the thermostat.
The mode stays the same and the current setpoints
are the same Occupied setpoints. Only the outputs
are disabled. There is a Door/Window alarm
displayed on the thermostat to indicate to the local
tenant that the door/window needs to be closed for
cooling or heating to resume. Use NC contact.
• Contact opened = System disabled with local
Window alarm
• Contact closed = System enabled
Binary input #2 can be configured for the following
functions:
1. (None): No function will be associated with the input
2. (Door Dry) Door contact & Motion detector: This
configuration is only functional if binary input #1 is
set to Motion NO or Motion NC.
BI1 is connected to a motion detector & BI2 is
connected to a door contact switch. With this
sequence enabled, the occupancy is now dictated
through those 2 inputs. Any motion detected will set
the zone to occupied status. The zone will remain
permanently in occupied mode until the door contact
switch opens momentarily. The thermostat will then
go in unoccupied mode. If more movements are
detected, the occupied mode will resume. If the door
stays open more than the time value specified by the
doortime parameter, the zone will remain
unoccupied. Use NC contact.
• Contact opened = Door opened
• Contact closed = Door closed
3. (RemOVR): temporary occupancy remote override
contact. This function disables the central button
override function on the thermostat. The override
function is now controlled by a manual remote
momentarily closed contact. When configured in this
mode, the input operates in a toggle mode.
It is now possible to toggle between unoccupied &
occupied setpoints for the amount of time set by
parameter (TOccTime) temporary occupancy time.
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
• Contact opened = No alarm
• Contact closed = Alarm displayed
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.
• Contact opened = No alarm
• Contact closed = Alarm displayed
Universal input #3 can be configured for the
following functions:
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
• Contact opened = Hot 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
• Contact opened = Cold 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.
• If water temperature is > 77 °F = Hot water present
• If water temperature is < 75 °F = Cold water present
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.
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