Filter
Top Products
TR21, TR22, TR23, AND TR24 WALL MODULES
5 62-0267—09
TR22 and TR23 Setpoint Adjustment
For the TR22 and TR23 Wall Modules with a setpoint
adjustment, the controller must be programmed for the values
in Table 2 and Table 3.
TR23-KL and TR23-H-KL
The TR23-KL and TR23-H-KL ship in packs of 20 and are
supplied without setpoint adjustment knobs. Knobs can be
ordered separately. See Table 4 for Knob model numbers.
Humidity Settings (DIP switch S1)
The humidity sensing control mode is set with this 2-position
DIP switch. Refer to Fig. 4 on page 3 for location of DIP switch
S1.
NOTE: These switch settings apply only to the TR21-H and
TR23-H models.
To change the setting, first disconnect the power, then set
SW1 and SW2 according to Table 5.
TR23 and TR24 Wall Module Override
(Bypass) Pushbutton and LED
Operation
When Used With Excel 10 Controllers:
The Excel 10 controllers (W7750, W7751, W7752, and
W7753) provide timed occupied and unoccupied temperature
setpoints for the Wall Module, see Fig. 6. The override
pushbutton is used to change the controller into the modes
shown in Table 6 and illustrated in Fig. 7 on page 6. The
override (bypass) LED displays the override status of the
controller.
Fig. 6. LED and override pushbutton locations
(TR23-F Wall Module shown).
Table 2. Setpoint Values.
Setpoint Value Program Setting
55°F (13°C) 2.773 V
65°F (18°C) 2.148 V
75°F (24°C) 1.345 V
85°F (29°C) 0.43 V
Table 3. Wall Module Setpoint Configuration.
Model Setpoint Resistance (Ohms)
°F Absolute 55°F 9574
85°F 1426
Relative -9°F offset from 70°F 9574
+9°F offset from 70°F 1426
°C Absolute 12°C 9945
30°C 1150
Table 4. Knob Model Numbers
Model Description
KNOB-C Celsius scale knob (pack of 20)
KNOB-F Fahrenheit scale knob (pack of 20)
KNOB-O Relative scale knob (pack of 20)
Table 5. DIP Switch S1 Settings.
Wall Module Model
Sensing
Control
Individual
Switches
12
TR21-H
TR23-H
0-10 Vdc OFF OFF
0-5 Vdc OFF ON
4-20 mA ON OFF
60
70
80
M28144
LED
OVERRIDE (BYPASS)
PUSHBUTTON
LED AND OVERRIDE (BYPASS) PUSHBUTTON AVAILABLE
ONLY ON THE TR23 AND TR24 MODELS.
1
1