Johnson Controls WT-4002-MCR User Manual

WT-4000 Series Pneumatic-to-Direct Digital Control (DDC) Room Thermostats Installation Instructions
12
14. Press to confirm the selection.
15. Press to go back to the previous screen
button when done.
Note: If the configuration screen is left idle for
10 seconds, it returns to the normal operation screen.
Commissioning
Table 2 includes a list of configurable settings that
define how WT-4000 Series Room Thermostat
pneumatic pressure commands correlate with the
temperature values. Refer to the HVAC equipment
documentation or service personnel for the actual
values that should be configured on the room
thermostat.
Table 2: WT-4000 Series Room Thermostat Configurable Settings
Settings Details Range Increments System
Defaults
Operational
Net Config CH – to change the radio channel number 11 through 26 1 11
GI – to change the device network group ID Two fields separated
by a period; both fields
are 1 through 255
1111.111
DI – to change the unique thermostat device ID Two fields separated
by a period; first field
is 1 through 159, and
second field is
1 through 246
1 71.40
Pneumatic
Direction Direct acting – branch line pressure increase
turns on cooling; decrease turns on heating
N/A N/A Direct
acting
Reverse acting – branch line pressure increase
turns on heating; decrease turns on cooling
Setpoint,
psig (kPa)
Branch line pressure when the room
temperature and setpoint are equal (heating
and cooling outputs are off)
1 to 22 psig
(7 to 152 kPa)
0.5 psig
(3 kPa)
9 psig
(62 kPa)
Gain/
Sensitivity
Branch line pressure change needed to change
the room temperature by 1F° (0.6C°)
1 to 5 psi/F°
(13 to 65 kPa/C°)
0.5 psig
(3 kPa)
2 psi/F°
(26 kPa/C°)
Proportional
Band –
Proportional
Range/
Throttling
Range
Temperature range that represents movement
of the controlled device from fully closed to fully
open; typically 6F° (3.6C°) or 4 psi (28 kPa)
0 to 10F°
(0 to 6C°)
1F°
(0.6C°)
6F°
(3.6C°)
Unoccupied
Mode,
psig (kPa)
Branch line pressure during the Unoccupied
Mode (heating and cooling outputs are off)
0 to 22 psig
(0 to 152 kPa)
0.5 psig
(3 kPa)
0 psig
(0 kPa)

Johnson Controls WT-4002-MCR Specifications

General

Brand	Johnson Controls
Model	WT-4002-MCR
Category	Thermostat
Language	English