WT-4000 Series Pneumatic-to-Direct Digital Control (DDC) Room Thermostats Installation Instructions
8
Received Signal Strength Indicator
Indicates the relative strength of the wireless signal
between the room thermostat and the device it is
communicating with.
a.
-39 and higher
: A strong and solid wireless
connection exists; no further analysis is
required.
b.
-44 to -40
: The wireless signal is getting
through; however, the room thermostat should
be monitored. If the signal strength
deteriorates further, there is a risk of data loss.
Consider adding a WT-ROUTER Router
between the devices to strengthen the signal.
c.
-45 and lower, or ---
: The room thermostat
has a very weak wireless connection or it is
failing to connect to other devices on the
network, resulting in the loss of a significant
number of data packets. The room thermostat
may be located too far from the other devices
or there may be wireless interference in the
area. To strengthen the wireless signal, add a
WT-ROUTER Router between the problematic
devices on the network to create an additional
connection point.
Room Temperature or Requested Setpoint
Indicates the current room temperature. Pressing the
Up/Down buttons once shows the locally-defined
setpoint temperature.
Adjusting the Room Setpoint Temperature
The WT-4000 Series Room Thermostat operates in
conjunction with the preset building configuration
parameters; therefore, the room setpoint temperature
can only be changed within predefined Comfort Zone
limits.
1.
Confirm that the room thermostat is in the
scheduled Occupied Mode; the top of the LCD
must read
Occupied
.
2.
The temperature reading on the LCD displays the
current room temperature. To increase or decrease
the room setpoint temperature, press the Up/Down
buttons to select the desired setpoint.
a.
When the Up/Down buttons are pressed once,
the LCD shows the user-defined room setpoint
value and the LCD reads
Setpoint
.
Note:
When the room temperature and the setpoint
value are the same, the HVAC equipment is off.
b.
If neither the Up or Down button is pressed
again, the LCD returns to the main screen
within 5 seconds.
c.
When the setpoint is displayed, keep pressing
the Up/Down buttons to reach the desired
room setpoint temperature.
d.
If the Up/Down buttons are pressed and the
setpoint stops increasing or decreasing,
predefined Comfort Zone limits have been
reached. If the setpoint does not change, the
local controls are disabled.
Note:
Contact the building administrator if the room
temperature minimum or maximum allowable settings
are not comfortable.
e.
The room thermostat decides to heat or cool
based on the current room temperature and
the specified setpoint.
3.
When the desired setpoint is specified, the LCD
returns to the main screen within 5 seconds.
4.
If the LCD reads
Unoccupied
, the room
thermostat is scheduled to be in the Unoccupied
Mode. If the area requires heating or cooling while
the room thermostat is in the Unoccupied Mode,
press the Override button
to change the
room thermostat to the Override Mode. See
Using
the Override Mode Button
that follows.
Using the Override Mode Button
If the LCD reads
Unoccupied
, the room thermostat is
scheduled to be in the Unoccupied Mode and the local
room thermostat controls are disabled. If the area
requires heating or cooling:
1.
Press the Override button
to change the
room thermostat to the Override Mode.
2.
The room thermostat stays in the Override Mode,
as defined by the configuration parameters (default
2 hours). The room setpoint temperature can be
adjusted within predefined Comfort Zone limits for
the duration of the Override Mode period.
3.
See Step 2 in the
Adjusting the Room Setpoint
Temperature
section to change the room setpoint
temperature.
4.
Once the Override Mode period expires, the room
thermostat returns to its originally scheduled mode.
If the heating or cooling period needs to be
extended, press the Override button
again
and follow Step 2 in the
Adjusting the Room
Setpoint Temperature
section.
