WT-4000 Series Pneumatic-to-Direct Digital Control (DDC) Room Thermostats Installation Instructions
7
LCD Details
Operating Mode
a. Occupied – Scheduled Occupied Mode: The
temperature can be adjusted within the
Comfort Zone.
b. Unoccupied – Scheduled Unoccupied
Mode: The HVAC controls are off and the
temperature cannot be adjusted. To turn the
HVAC controls on, press the Override button
to put the room thermostat in the
Override mode, and then adjust the
temperature setting using the Up/Down
buttons.
c. Override – Manual Override Mode: The
temperature can be adjusted within the
Comfort Zone.
d. Shoulder – Manual Unoccupied Mode: The
temperature cannot be adjusted. To put the
room thermostat back to its scheduled mode,
press the Shoulder button again;
Occupied reappears on the main screen.
Wireless Connection Status
Indicates if the room thermostat is connected to the
WT-BAC-IP Gateway.
a. : A connection is established.
b. Blank: There is no connection.
Number of Routes to the WT-BAC-IP Gateway
Indicates how many communication paths exist
between the room thermostat and the WT-BAC-IP
Gateway.
a. Blank: The room thermostat is not connected
to the WT-BAC-IP Gateway.
b. 1: One connection exists.
c. 2: Two or more connections exist and the room
thermostat is operating properly.
Battery Voltage Level
a. : The battery is fully charged.
b. : The battery charge is low and the
batteries should be replaced.
Heat or Cool Output
a. : Cooling is on.
b. : Heating is on.
Requested Branch Line Pressure – psig (kPa)
Indicates the required branch line pressure based on
the control calculation.
Actual Branch Line Pressure – psig (kPa)
Indicates the measured values of the branch line
pressure. The actual branch line pressure should be
within 0.6 psig (4 kPa) of the requested branch line
pressure.
Display Codes
Table 1: Display Codes
Display
Code
Description
2 0 psig (0 kPa) available in main line
4 Insufficient branch line pressure
8 Pressure down leak in the system (pressure
decreases when it should remain constant)
12 Insufficient branch line pressure and pressure
down leak in the system
16 Pressure up leak in the system (pressure
increases when it should remain constant)
22 Insufficient branch line pressure and pressure
up leak in the system
24 Both pressure down leak and pressure up leak
in the system
512 Configuring wireless network
1024 Time and Date need to be configured
(Stand-Alone Mode)
Any
Other
Number
Product error; contact the local
Johnson Controls representative