Viconics VT7300 Installation Manual (First Release 1000 Series) - Manual (Page 13)

13
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 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.
(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.
(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
(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
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 for hot / cold water
or air change over switching in 2 pipe systems.
Contact closed = Cold water or air present
Contact opened = Hot 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
Contact opened = Cold 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.
If water temperature is > 78 °F = Hot water present
If water temperature is < 75 °F = Cold water present
(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.
MenuScro *
Menu scroll
Default value = On = Scroll
active Removes the scrolling display and only present the room temperature/humidity to the
user. With this option enabled, no status is given of mode, schedule and outdoor
temperature.
On = Scroll active
Off = Scroll not active