Honeywell TR21 Manual Del Usuario página 6

TR21, TR22, TR23, AND TR24 WALL MODULES
Communications
All wall modules (except the TR21 and TR21-A models) have
a L M ® bus communications port. If needed, the jack
ON ARK
plug must be removed in the field, and terminals 3 and 4 wired
according to the installation instructions.
L M ® bus communication is not applicable when the
ON ARK
wall modules are used with Excel 600/500/100/80
Controllers. The L M
ON ARK
minimizing installation errors due to mis-wiring.
The recommended wire size for the L
Level IV, 22 AWG (0.34 sq.mm) plenum or non-plenum rated,
unshielded, twisted pair, solid conductor wire.
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 3 and Table 4.
Table 3. Setpoint Values.
Setpoint Value
55°F (13°C)
65°F (18°C)
75°F (24°C)
85°F (29°C)
Table 4. Wall Module Setpoint Configuration.
Model Setpoint
°F Absolute 55°F
85°F
Relative -9°F offset from 70°F
+9°F offset from 70°F
°C Absolute 12°C
30°C
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 5 for Knob model numbers.
Table 5. Knob Model Numbers
Model
KNOB-C Celsius scale knob (pack of 20)
KNOB-F Fahrenheit scale knob (pack of 20)
KNOB-O Relative scale knob (pack of 20)
63-1321ES—06
® bus is insensitive to polarity,
M ® bus is
ON ARK
Program Setting
2.773 V
2.148 V
1.345 V
0.43 V
Resistance (Ohms)
9574
1426
9574
1426
9945
1150
Description
Humidity Settings (DIP switch S1)
The humidity sensing control mode is set with this 2-position
DIP switch. Refer to Fig. 3 on page 4 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 6.
The switch settings are used to indicate the sensing control
between the humidity sensor on the wall module and the
connected controller model.
Table 6. DIP Switch S1 Settings.
Wall Module Model
TR21-H
TR23-H
DIP Switches S2 and S3
See Fig. 3 on page 4 for location of these DIP switches. To set
these DIP switches, refer to the TR21, TR22, TR23, and TR24
Wall Modules – Installation Instructions, form 62-0267.
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. 4. The override
pushbutton is used to change the controller into the modes
shown in Table 7 and illustrated in Fig. 5 on page 7. The
override (bypass) LED displays the override status of the
controller.
LED AND OVERRIDE (BYPASS) PUSHBUTTON AVAILABLE
1
ONLY ON THE TR23 AND TR24 MODELS.
Fig. 4. LED and override pushbutton locations
(TR23-F Wall Module shown).
6
Individual
Switches
Sensing
Control 1
0-10 Vdc OFF
0-5 Vdc OFF
4-20 mA ON
70
LED
1
OVERRIDE (BYPASS)
PUSHBUTTON
M28144
2
OFF
ON
OFF