2
Programmable BI/UI inputs overview
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) and (Motion NC):
Advanced PIR
occupancy functions using a Normally Open (NO)
or Normally Closed (NC) remote PIR motion
sensor. Occupancy mode is now set as per applied
PIR function and configuration. Application
information and examples, are available on
document:
APP-PIR-Guide-Exx.
This document will
provide the installers and system designers with
detailed examples on applications, parameter
configuration information, sequence of operation,
troubleshooting and diagnostic help required for the
proper usage of the PIR accessory covers
4. (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
or a
PIR
accessory cover
is used.
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 stand-by mode. If
more movements are detected, the occupied mode
will resume. While the door is opened, any
movements detected by the remote PIR sensor or
the PIR accessory cover will be ignored. Use a
Normally Closed contact switching device.
•
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 temperature is > 77 °F = Hot water present
•
If 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.
.
