Honeywell TR21, TR22, TR23, TR24 TR22 and TR23 Setpoint Adjustment, TR23-KL and TR23-H-KL, Humidity Settings (DIP switch S1), TR23 and TR24 Wall Module Override (Bypass) Pushbutton and LED Operation

TR21, TR22, TR23, AND TR24 WALL MODULES

562-0267—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

TR21-H

TR23-H

0-10 Vdc OFF OFF

0-5 Vdc OFF ON

4-20 mA ON OFF

M28144

LED

OVERRIDE (BYPASS)

PUSHBUTTON

LED AND OVERRIDE (BYPASS) PUSHBUTTON AVAILABLE

ONLY ON THE TR23 AND TR24 MODELS.