Johnson Controls TM-2161, TM-2151, TM-2141, TM-2191 Installation Instructions Manual

TM-21x1 Series Room Temperature Module

24- 10225- 12, Rev. C

Installation Instructions

Part No. 24-10225-12, Rev. C

Issued March 2016

Applications

The TM-21x1 Series of Room Temperature Modules
are designed for use with the Facility Explorer Series of
field controllers. The setpoint dial enables the room
occupant to adjust the working setpoint of the
controller. On scaled models, the marked adjustment
range is 55 to 85°F; the controller determines the
actual setpoint temperature. On Warmer/Cooler
models, the adjustment range is marked +/- from
midpoint of the dial; the controller determines the
equivalent setpoint temperature.

With the occupancy button, the occupant can switch
the controller’s operating mode between occupied and
standby. In addition, the TM-21x1 Series offers the
option of a temporary occupied mode during
unoccupied mode.

The TM-21x1 Series Room Temperature Module also
features a Light-Emitting Diode (LED) that indicates the
current operating mode.

IMPORTANT: The TM-21x1 Series Room
Temperature Modules are intended to provide an
input to equipment under normal operating
conditions. Where failure or malfunction of the
TM-21x1 Temperature Module could lead to
personal injury or property damage to the controlled
equipment or other property, other precautions must
be designed into the control system. Incorpora te and
maintain other devices, such as supervisory or
alarm systems or safety or limit controls, intended to
warn of or protect against failure or malfunction of
the TM-21x1 Temperature Module.

Installation

Parts Included

Two #6-32 x 7/8 in. (22 mm) wallbox mounting screws
are included with the TM-21x1 Module.

Special Tools Needed

For tightening and loosening the TM-1 1x1 Series Room
Temperature Module security screw, order the optional
Allen-head tool (T-4000-119) fro m th e ne ar es t
Johnson Controls® representative.

TM-21x1 Series Room Temperature Module Installation Instructions 1

Dimensions

Figure 1: TM-2141 Dimensions, in. (mm)

3.15 (80 )

4.72

F

I

G

:

2

1

4

1

_

d

i

m

Figure 2: TM-2151 Dimensions, in. (mm)

F

I

G

:

2

1

5

1

_

d

i

m

Mode

LED

Occupancy

Button

4.72

(120)

Figure 3: TM-2161-0002 and TM-2161-0007

Dimensions, in. (mm)

F

I

G

:

2

1

6

1

_

d

i

m

4.72

(120)

Mode

LED

Button

Fan

Speed

Dial

Setpoint

Dial

F

I

G

:

2

1

6

1

_

0

0

0

5

_

d

i

m

4.72

(120)

Mode

LED

Button

Setpoint

Dial

Figure 4: TM-2161-0000 and TM-2161-0005

Dimensions, in. (mm)

TM-2141 Modules

TM-2161 Modules

1.26 (32)

(120)

1.38 (35 )

3.15 (80)

Occupancy

Adjustment

TM-2151 Modules

1.26 (32 )

3.15 (80)

TM-21x1 Series Room Temperature Module Installation Instructions2

1.38 (35 )

3.15 (80)

Occupancy

Adjustment

TM-2191 Modules

Figure 5: TM-2191 Dimensions, in. (mm)

F

I

G

:

2

1

9

1

_

d

i

m

3.15 (80)

1.38 (35)

4.72

(120)

Setpoint

Adjustment

Dial

7. Attach the housing to the base and tighten the
security screw with the allen-head tool.

Mounting

Location Considerations

Mount the TM-21x1 Series Room Temperature Module
on a wall in the room to be controlled where the
occupant can easily read and adjust the setpoint dial or
fan speed override adjustment dial. Consider these
additional guidelines in determining the best mounting
location:

• Avoid areas subject to excessive vibration,
electrical noise, direct sunlight, or the effects of
radiant heat.

• Keep electrical wiring as short as possible to
minimize temperature error.

• Install modules in areas where the temperature is
representative of the general room conditions.

Wiring

To wire a controller to the TM-21x1 Series Room
Temperature Module, see the appropriate wiring
diagram (Figure 6 to Figure 10).

Installing the TM-21x1

To install the TM-21x1 Series Room Temperature
Module:

1. Use the Allen-head tool to loosen the security
screw located at the top center of the housing.

2. Insert a screwdriver blade or coin into the slot on
the top of the housing.

3. Press down gently, and pry the housing away from
the base. As the two parts separate, remove the
blade or coin and continue to pull the housing away
from the base until the housing is free.

4. Pull the wires through the base. Locate the green
terminal blocks in the upper right of the base and
position the module on the wallbox with the
terminal numbers right-side up.

5. Mount the base to the wallbox using the two #6-32
mounting screws (included).

6. Wire the controller to the module. See the Wiring
section for correct wiring.

Note: Use 22 AWG (0.65 mm diameter) wire
minimum. Do not exceed 164 ft (50 m) between the
controller and the temperature module.

Table 1: Nominal Values for 10k ohm Sensors

Temperature Resistance
F Cohm

20 -7 48,525
30 -1 34,919
40 4 27,550
50 10 19,898
60 16 12,246
70 21 11,993
80 27 9,222
90 32 7,510
100 38 5,874
110 43 4,871
120 49 3,956
130 54 3,277

TM-21x1 Series Room Temperature Module Installation Instructions 3