WT-4000 Series Pneumatic-to-Direct Digital Control (DDC) Room Thermostats Installation Instructions
24
Default Occupied Mode setpoint
value in the event of wireless
communication failure;
default = 70°F (21°C)
Temperature used in the event the room thermostat goes offline
for an extended duration
Factory configured
Default Unoccupied Mode
setpoint start time in the event of
wireless communication failure
Time of day (0 to 24 hours) in the event the room thermostat
goes offline for an extended duration; disabled in default
configuration; therefore, device does not go into Unoccupied
Mode when offline
Factory configured
Temperature sensor
calibration factor; °F (°C)
Calibrates the room thermostat temperature sensor for offset
compensation
Factory configured
Shoulder Mode Comfort Zone
upper delta
Defines upper temperature limit in Shoulder Mode
Configuration tool
Shoulder Mode Comfort Zone
lower delta
Defines lower temperature limit in Shoulder Mode
Configuration tool
Direction
Direct acting – branch line pressure increase turns on cooling;
decrease turns on heating
Reverse acting – branch line pressure increase turns on
heating; decrease turns on cooling
Configuration tool,
room thermostat
Setpoint psig
Branch line pressure when room temperature and setpoint are
equal (no heating or cooling outputs)
Configuration tool,
room thermostat
Gain/sensitivity
Branch line pressure change needed to change the room
temperature by 1F° (0.6C°)
Configuration tool,
room thermostat
Proportional band – proportional
range/throttling range
Temperature range that represents the controlled device’s
movement from fully closed to fully open; typically 4F° (2.4C°)
or 6F° (3.6C°)
Configuration tool,
room thermostat
Unoccupied Mode psig
Branch line pressure during Unoccupied Mode when zone
temperature is within unoccupied constrained upper and lower
limits
Configuration tool,
room thermostat
Table 3: WT-4000 Series Room Thermostat Configuration Parameters (Part 2 of 2)
Parameter
Description
Configuration
Method
