Viconics VT7200 Installation Manual (First Release 1000 Series) - Manual (Page 12)

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BI1 *
Binary input no.1 configuration
Default value = None (None): No function will be associated with the input
(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 occupancy sensor or from a dry contact
(Motion NO): remote NSB through motion detector input. The scheduling will now be set as
per the binary input.
Contact opened = Unoccupied. When the contact toggles closed, the thermostat goes into
occupied mode for the time specified by ToccTime. The timer can only reset through new
movements at the end of its cycle.
(Motion NC): remote NSB through motion detector input. The scheduling will now be set as
per the binary input.
Contact closed = Unoccupied. When the contact toggles opened, the thermostat goes into
occupied mode for the time specified by ToccTime. The timer can only reset through new
movements at the end of its cycle.
Motion NO or Motion NC will disable any local override function ( central keypad key or
through BI2 )
(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.
• Closed contact = Window closed, outputs enabled
• Opened contact = Window opened, outputs disabled
A hold on the current PI loop is enabled
BI2 *
Binary input no.2 configuration
Default value = None (None): No function will be associated with the input
(Door Dry) Door contact & Motion detector: This configuration only has effect if
OCCUPANCY input is set to Motion NO or Motion NC.
Occupancy input is connected to motion detector & BI2 input is connected to door contact.
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 a door toggle is detected; the thermostat will then go in unoccupied
mode. If more movements are detected, the occupancy mode will resume. If the door stays
open more than ( X = doortime ) there is a maid in the room; the zone will remain
unoccupied.
• Closed contact = Door closed,
• Opened contact = Door opened
(RemOVR): temporary occupancy contact. Disables all override menu function of 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.
With this function enabled it is now possible to toggle between unoccupied & occupied
setpoints for the amount of time set by parameter (TOccTime) temporary occupancy time.
When enabled, the Override function on the central keypad is disabled.
(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 *
Universal input no.3 configuration
Default value = None (None): No function will be associated with the input
(COC/NH) Change over dry contact. Normally Heat: Used when both heating and cooling
are controlled from the same thermostat output. Contact closes when cold air/water is
present. Only used and valid if system parameter (Out1Conf) is set at 2.0
(COC/NC) Change over dry contact. Normally Cool: Used when both heating and cooling
are controlled from the same thermostat output. Contact closes when hot air/water is
present. Only used and valid if system parameter (Out1Conf) is set at 2.0
(COS) Change over analog sensor: Used where heating and cooling are controlled from
the same output. Temperature in duct/pipe determines control mode (heat/cool) Only used
and valid if system parameter ( Out1Conf ) is set at 2.0
(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