Table of Contents
Advertisement
Installation
Important note for the following: Scheduling can only be controlled from one source.
Occupancy Input Contact (Option) - If configured for remote occupancy control (default), the WSHP Open can use
an external dry contact closure to determine the occupancy status of the unit. You must disable the Occupancy
Schedules in order to utilize the occupancy contact input. The unit enters an occupied mode whenever it senses
the abnormal input. After the input returns to its normal state, the unit stays in the occupied mode for the
configured Occ Override Delay period (15 minutes default).
BAS (Building Automation System) On/Off - For use with a Building Automation System that supports network
scheduling, you must disable the Occupancy Schedules so the BAS system can control the unit through a network
communication and the BAS scheduling function.
Global Occupancy Scheduling - The WSHP Open can read the occupancy status from another unit so that a group
of WSHP's can be controlled from a single occupancy schedule. The local Occupancy Schedules must be disabled
in order to utilize the global occupancy input.
BACnet Network Occupancy Input - The WSHP Open can accept an external BACnet Binary Network Input for
occupancy control. This function is only compatible with units used in BACnet systems. You need to configure the
System Occupancy BACnet network input point to locate the device and point name where the external occupancy
point information resides. You must also disable Occupancy Schedules in order to utilize this input.
Fire/Smoke detector input
The WSHP Open can read the status of a normally closed FSD contact input to determine if a fire or smoke
detector alarm is present. If the controller determines an alarm condition is present, all heating, cooling, and the
fan are disabled. The switch is factory-set to Normally Closed and cannot be changed.
Shutdown input
The WSHP Open controller has a shutdown input (software point) which, when set to its Active mode causes the
WSHP to safely shutdown in a controlled fashion. Heating and cooling is disabled after any minimum runtime
conditions expire and the fan is disabled after the fan-off timer expires. All alarms are reset but any active alarm
remains active. After the shutdown input transitions from Active mode to Inactive, the WSHP Open restarts after
the configured power fail restart delay expires.
Indoor fan
You can configure the indoor fan to operate in any one of 3 Fan Modes:
•
Auto - intermittent operation during both occupied and unoccupied periods
•
Continuous (default) - intermittent operation during unoccupied periods and continuous during occupied
periods
•
Always on - operates the fan continuously during both occupied and unoccupied periods
In the Continuous default mode, the fan is turned on whenever any one of the following is true:
•
It is in occupied mode, which is determined by the occupancy status
•
There is a demand for cooling or heating in the unoccupied mode
•
There is a call for dehumidification (optional)
14
WSHP Open v3
Advertisement
Table of Contents
