JOHNSON CONTROLS T-3100, T-3300, T-3311, T-3200 User guide

14-1104-0, Rev.

A

T-3100, T-3200, and T-3300 Series Controllers

The T-3100 and T-3300 Series proportional action
pneum
temperature in accordance with the return air
temperature in terminal air conditioning units. The
T-3200 Series of pneumatic thermostats are designed
to control pneumatic actuators in single temperature,
dual pressure applications.

The T-3111 and T-3311 Series controllers are
combination pneumatic thermostats and valve
actuators. The T-3111 provides proportional control of
a steam or water valve on a single temperature
application, while the T-3311 provides control in
dual temperature, dual pressure applications.

atic thermostats are designed to maintain

Product/T

echnical Bulletin

Issue Date March 2016

WARM

Figure 1: T-3100 Remote Mounted Thermostat and

T-3311 Valv

e Top Thermostat

 Models are Available in

 Direct or Reverse Acting

 Models Available with an

 Valve Top Models

2016 Johnson Controls, Inc.

©

Part No. 14-1104-0, Rev. A
Code No. LIT-7171156

Features and Benefits

Direct-reverse Acting or
Reverse-direct Acting

Models Av

ailable wi
Filled Temperature
Measuring Elements

External or Concealed
Setpoint Adjusting Screw

Compatible with
VG7000 Series Valves

th Liquid

Allows seasonal change over from cooling to
heating or heating to cooling automatically

Suits heating or cooling applications

Field adjust

able or concealed to maintain system

design as commissioned

The T-3111 and T-3311 are direct replacements
for the T-3110 and T-3310 Series Valve Top
Actuators

1

rdering Information

O

Table 1: Ordering Information

Code

Number

T-3100-2
T-3100-3
T-3111-1
T-3111-2
T-3111-3
T-3111-6

T-3200-1

T-3300-1

T-3300-2

T-3311-1

T-3311-2

Direct Acting

Reverse Acting

Direct Acting

Reverse Acting

Direct Acting

Direct Acting Concealed

DIR at 15 and 20 psig
(103/138 kPa)

DIR at 15 psig
(103 kPa)

REV at 20 psig

(138 kPa)

DIR at 20 psig
(138 kPa)

REV at 15 psig
(103 kPa)

DIR at 15 psig
(103 kPa)

REV at 20 psig

(138 kPa)

DIR at 20 psig
(138 kPa)

REV at 15 psig
(103 kPa)

Action

(Proportional)

Element

Bulb External Remote Single Temperature

Bulb External

Averaging External Valve Top Single Pressure

Averaging Concealed Remote

Bulb External Remote

Bulb External Valve Top Dual Temperature

Setpoint

Adjustment

Mounting Application

Single Temperature
Dual Pressure

Dual Temperature

Dual Pressure

Dual Pressure

2 T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin

imensions

D

76

3

3/4

19

1-1/2

38

5/8

16

1/4

6

1/4

6

Capillary Length

3-3/8

86

42

1067

4-3/4

121

Extends to maximum

4-3/4

121

Extends to maximum

6-9/16

167

5/16

Diameter

8

5-1/8

130

5-11/16

144

Subordinate

Connection 1/8 inch

NPT, Internal Thread

Supply Air to

Restrictor

Branch

Restrictor

Branch

Marked

Control Air

3/4

19

8-11/16

220

Figure 2: Dimensions and Mounting Details for T-3100, in./mm

3-1/16

Capillary Length

78

4-7/16

113

18

457

Averaging Element Length

4-3/4

120

2-1/4

57

Barbed

Restrictor Tee

Subordinate

Connection

1/8 inch NPT,

Internal Thread

Sealing Cap

(Open Branch)

Supply Air Connection

(Restrictor Branch)

96

2438

Figure 3: Concealed Adjustment for T-3111, in./mm

T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin 3

3-3/16

80

4-9/16

116

4-3/4

121

Barbed

Restrictor Tee

Subordinate

Connection

1/8 inch NPT,

Internal Thread
Sealing Cap

(Open Branch)

Capillary Length

42

1067

2-1/4

57

Supply Air Connection

(Restrictor Branch)

6-9/16

167

5/16

Diameter

8

Figure 4: Exposed Adjustment for T-3111, in./mm

O

L

O

C

W

A

R

M

Supply
Air

3/4

19

5-3/16

132

Figure 5: Mounting Details for T-3111, in./mm

4 T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin

5/8

16

3-1/8

79

4-3/4

121

to maximum

5-1/8

130

Barbed Restrictor

Tee Suppl y

(Restrictor Branch)

Marked

Output

(Open Branch)

76

3

3/4

19

1-1/2

38

1/4

6

5-1/2

140

1/4

6

8-13/16

224

Capillary Length

18

457

Averagi n g E l em ent Length

5-13/16

148

96

2438

to maximum

Figure 6: Dimensions and Mounting Details for T-3200, in./mm

3-1/16

78

4-3/4

121

Supply Air

Straight Connector

for 1/4 inch O.D.

Poly ethylene T ub ing

Switching Air

Connection

13/16

21

4-9/16

116

Capillary Length

42

1067

2-1/4

5/16

8

57

6-9/16

167

Diameter

Figure 7: Exposed Dimensions for T-3311, in./mm

T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin 5

Subordinate
Connection

1/8 inc h N P T ,

Internal Thread

76

3

3/4

19

1-1/2

38

5/8

16

1/4

6

1/4

6

Capillary Length

3-3/8

86

42

1067

5-9/16

141

4-3/4

121

to maximum

5-13/16

148

to maximum

5-1/8

130

Output

Air Connection

Supply Air

Connection

13/16

21

8-13/16

224

6-9/16

167

5/16

Diameter Bulb

8

Figure 8: Dimensions and Mounting Details for T-3300, in./mm

L

O

O

C

H

E

A

T

3/16

21

5-5/16

135

Figure 9: Mounting Details for T-3311, in./mm

6 T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin

nstallation Procedures

I

Tubing Installation

The T-3100, T-3200, and T-3300 Series Thermostats
are supplied with barbed fittings for the supply and the
output air connections. It is recommended that Type
“FR” polyethylene tubing be used on the barbed
fittings.

Note: Cut tubing off square for a good fit on the

barbed fitting.

If “HP” or copper tubing is used, the barbed fitting
must be removed and replaced with a compression
fitting and an in-line restrictor when necessary.

Note: Figure 10 illustrates a copper tubing

installation; “HP” tubing installation is the
same except the brass ferrule is replaced with
a thermoplastic ferrule, which is supplied with
the R-3710-1007 restrictor.

.007 inch In-Line

Restrictor with O-Ring

1/8 inch NPT, Internal Thread

Brass Ferrule

(Field F ur ni shed)

Air
Flow

1/4 inc h O.D.

Soft Copper Tubing

Compre ssion

Nut

Supply Air Connecti on

Standard Compression

Fitting (Field Furnished)

Figure 10: Copper Tubing Installation

(Use R-3710-1007 In-Line Restrictor)

Route the capillary so it is not in contact with
extremely high or low temperature sources such as
steam lines, water pipes, or coils. Be sure to route the
element and capillary so that routine maintenance can
be performed on the terminal unit without disturbing
the element.

Bulb Element

In most cases, a bulb element will be installed in the
return air chamber of the terminal air unit in the
following manner:

1. Install the element behind the protective screen or
grille and in a location where normal maintenance
may be performed on the unit without interference.

2. Be sure the bulb will sense only the return air and
will not be influenced by other temperatures.

3. Secure the bulb using holder, T-275-100 (ordered
separately) which can be hung or fastened in
place and bent to the desired position.

Holder

Bulb

5/16

Diameter Hole

8

Sensing Elements

Both the bulb and the averaging sensing element must
be carefully located so the elements measure only the
intended air temperature. The majority of terminal air
condition units are very compact and little clearance
exists between coils. Also, the air flows are of widely
varying temperature. Before selecting an element
location, study the unit interior and make certain that
the sensing element will not be affected by
undesirable temperatures or mechanical damage.
Avoid extremely sharp bends in the capillary which
could obstruct the liquid flow.

T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin 7

8

203

Figure 11: Bulb Element Holder Dimensions,

in./mm (T-275-100, ordered separately)

Averaging Element

In most cases, an averaging element will be installed
in the air chamber of the terminal air unit in the
following manner:

1. Install the element in a serpentine fashion across
the top of the unit coil.

2. Secure the element along the entire length by
using holders, T-275-101 (ordered separately), so
that no part of the element touches the coil. The
holder is very flexible and can be bent to any
desired position.

3. On face and bypass units, the element must be
placed in the space where a mixing of coil
discharge air (face) and coil bypass air takes
place. Install the element as close as possible to
the bottom side of the discharge air grille. The
element should be secured by using holders
(T-275-101, ordered separately) fastened to the
unit casing.

For ASHRAE Cycle III applications, the element

must be installed in the mixed air (outside and
return) rather than in the discharge air. Install the
element so it will receive the best possible
sampling of the mixture temperature using holders
(T-275-101, ordered separately) fastened to the
unit casing.

Bend prongs around

bulb or capillary.

alibration Procedures

C

All Johnson Controls instruments are carefully tested
and calibrated at the factory before shipment. If field
calibration is required, it should not be started until all
installation procedures are complete. If, during
calibration, the temperature at the measuring element
fluctuates, place the element in a stable, well­controlled temperature area such as a bucket of water,
preferably 75F (24C) for controllers and
56F (13C) for low limit controllers.

Be sure the supply air to the instrument is clean and
free of moisture. The adjusting dial is graduated in
1F increments and can be removed with a flexible
hex head screwdriver (JC 5309, ordered separately).
It is recommended that the middle graduation be used
to represent the desired temperature setpoint.

The adjusting screw for externally adjusted,
Direct Acting (DIR) models is located inside the dial
post and is accessible by removing the dial (refer to
Figure 13, Detail A). For DIR models with concealed
adjustment, it is necessary to remove the small metal
button in the cover (refer to Figure 13, Detail B). A
calibration tool (T-4002-5009, ordered separately)
should be used to adjust the setpoint on these models.

It is necessary to remove the dial and cover for models
with either Reverse Acting (REV) or low limit
adjustments. Use a calibration tool (T-4002-5009,
ordered separately) for Reverse Acting adjustment of
the T-3100 and T-3300 Series Thermostats (refer to
Figure 13, Detail C).

Be sure each T-3100 and T-3111 Thermostat has a

0.007 inch in-line restrictor installed in the supply air
connection. The T-3200 instruments should have a

0.007 inch in-line restrictor in the air line between the
instrument and the room thermostat.

3/16

5

25

2-1/4

57

1

Twist here

if required.

Slip pron gs

over coil fin.

Coil Fin

Figure 12: Averaging Element Holder Dimensions,

in./mm (T-275-101, ordered separately)

8 T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin

Switch Stack

Not Furnished on

T-3100 Series

Temperature Set P oi n t

Adjusting Dial

Flexible Driver

JC 5309 (Ordered Separately)

Low Limit Setpoint
Adjustment on Two
Element Controllers

Direct Acting

Set Point Adjustment

(Detai l A )

(Out put Test Port)

Test Co nn ec tion

For Concealed

or Remote

Adjustment Models

For External

Adjustment Models

Reverse Acting

Set Point Adjustment

(Detai l C)

Figure 13: Setpoint Adjusting Features

Recalibration Tool

JC 5360 (o rd er ed s e par ately)

Direct Acting

Set Point Adjustment

(Detail B)

T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin 9

Temperature Setpoint Adjustment

For T-3100 and T-3200 Series follow
Steps 1 through 7.

1. Supply the instrument with the proper supply air
pressure.

2. Insert the test gauge (JC 5310, ordered
separately) and the probe assembly (JC 5361,
ordered separately) into the output test port.

Note: For Reverse Acting thermostats it will be

necessary to remove the cover in order to turn
the setpoint adjustment screw.

3. Turn the setpoint adjustment screw until the
pressure reading is approximately in the middle of
the operating range of the actuator. For example,
a 5 to 10 psig operating range would require an
output pressure reading of 7.5 psig.

4. Remove the test gauge and probe assembly.

5. Determine the temperature at the measuring
element.

6. Place the dial on the dial post (do not tighten) and
position it to the temperature at the element.
Remember that each dial increment represents
one Fahrenheit degree. For models with
concealed adjustment, use recalibration tool
JC 5360 (ordered separately).

7. Tighten the dial and turn it to the desired setpoint.

Example: If the desired temperature setpoint is

75F and the temperature at the
element is 71F, then place the dial on
the dial post (do not tighten) and
position it to 71F or four graduations
(75F-71F = 4F) clockwise from the
middle graduation (75F), the desired
setpoint.

For T-3300 Series proceed as follows:

1. Supply the instrument with the appropriate air
pressure for the Direct Acting (DIR) operation.

2. Insert the test gauge (JC 5310, ordered
separately) and the probe assembly (JC 5361,
ordered separately) into the test port
(as illustrated in Figure 14).

3. Remove the knob and cover.

4. Turn the DIR screw until the output pressure is in
the middle of the actuator operating range.

5. Change the supply air pressure to that required for
the Reverse Acting (REV) operation.

6. Turn the REV adjusting screw until the output
pressure is in the middle of the actuator operating
range.

7. Remove the test gauge and probe assembly.

8. Determine the temperature at the element.

9. Attach the cover.

10. Place the dial on the dial post (do not tighten) and
position it to the temperature at the element.

11. Tighten the dial and turn to the desired setpoint.

Note: If the setpoints of several instruments are to

be adjusted before switching the supply
pressure, be sure that the temperature at the
element will not change during both stages of
adjustment.

Note: For T-3200 Series the low limit setpoint is

56F. Use calibration tool T-4002-5009
(ordered separately). Each graduation is
9F (5C).

10 T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin

Test P r ob e A s sembly

(JC 5361 , or de red s ep ar ately)

(JC 5310, ordered separately)

Test Gauge

Output Pressure

Test Port

1/8 inc h

NPT, Internal

Thread

15

10

20

5

25

30

0

Figure 14: Test Gauge

Temperature at Element

71°F ( 22°C)

e

s

i

w

k

c

o

l

C

H

E

L

O

O

C

A

T

75°F (24° C) Desired
Temperature Setting

Mid-point of Dial

75°F (24°C)

Pointer

H

E

L

O

O

C

A

T

Figure 15: Temperature Setpoint Dial

T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin 11

Restricted Adjustment

The dial pointer on externally adjusted models has
tabs which are factory set to restrict the dial
adjustment to a span of 15F (7.5F on either side of
the pointer). The restriction can be changed to the
spans indicated in Table 2 by bending up the
appropriate tabs and flattening the factory set tabs.

Table 2: Span Adjustment

Span Tab

F C F C

20 11.1 + 10 + 5.6

15 8.3 + 7.5 + 4.2

10 5.6 + 5 + 2.8

5 2.8 + 2.5 + 10

10°F

7.5°F
5°F

2.5°F

10°F

7.5°F
5°F

2.5°F

Figure 16: Restricted Adjustment

aintenance and

M

Troubleshooting Procedures

These instruments are designed so that a minimum of
routine maintenance is required. The following
procedures should be used to ensure proper operation
and to locate malfunctioning components:

1. Check all air lines, connections
for air leaks. Make sure that the in-line restrictors
are not defective.

2. Check the operation of the thermostat to be sure it
is passing the correct control signal and that it is
functioning properly. Make sure it has the proper
supply air pressure and that air is exhausting from
the control port. The port must exhaust
continuously to ensure proper operation of the
thermostat.

3. Check that the temperature measuring element
has not been damaged or moved from its intended
sensing position.

4. Check that the valve packing nut is tight enough to
prevent leaks, but not so tight that the packing
becomes distorted and binds the stem; usually
finger tight is sufficient. If the valve is leaking
around the centerpiece, tighten it with the
appropriate wrench.

5. Verify that the valve seats completely when the
actuator is fully stroked. If there is fluid flow after
the plug is seated, the seat, plug, or disc may be
worn or scored and should be repaired or
replaced.

, and diaphragms

6. If there are subordinate actuators, make sure the
actuators are operating in the proper sequence
and adjusted correctly.

12 T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin

ccessories

A

Table 3: Accessories (Order Separately)

Description Code Number

Hex Head Flexible Screwdriver JC 5309

Control Line Test Gauge and
Adaptor

Recalibration Tool JC 5360

Test Probe Assembly JC 5361

Averaging Element Holder for
3 inch (76 mm) Coil
(See Figure 17.)

Restrictor Tee (.007 inch) R-3710-1007

“B” Bulb Holder T-275-100

Averaging Element Holding Clip T-275-101

Supply Inlet Filter
(Order in multiples of 100.)

Calibration Tool T-4002-5009

Averaging Element Holder for
Radius Bends (minimum 3-1/2 in.
(See Figure 18.)

Diaphragm for Exposed Actuator
V-3000-1 only

JC 5310

Order QEO-1 from
Temperature Control
Specialties
2800 Laura Lane
Middleton, WI 53562
[phone]

T-3100-605

TE-6001-8

V-3000-600

Figure 17: QEO-1, Averaging

Element Holder

Figure 18: TE-6001-8,

Averaging Element Holder

T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin 13

epair Procedures

R

Actuators

To replace the diaphragm, follow Steps 1 through 7
below.

1. Remove the eight screws holding the thermostat
to the integral actuator.

2. Lift the thermostat exposing the diaphragm and
remove the piston.

3. Turn the new diaphragm inside out and place it
over the piston. Smooth out all of the wrinkles and
release any air trapped between the head of the
piston and the diaphragm, then pull the flange up.
The diaphragm will assume its shape, as
illustrated in Figure 19.

4. On piston top valve actuators, place the piston
straight within the new diaphragm and insert into
the bell housing.

5. Replace the thermostat.

Thermostat

Diaphragm

V-3000-600

Piston

Spider

Figure 19: Diaphragm Installation for

T-3111 and T-3311 Series

6. Replace all the screws and tighten equally.

7. Place the instrument in operation and check its
action.

14 T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin

pecifications

S

Product T-3100, T-3200, and T-3300 Series Controllers

Models See Table 1.

Proportional Action See Table 1.

Maximum Supply Pressure

Ambient Temperature Limits

Supply

Air Connections

S

ubordinate

Ty

Element

Range

Span 20F (11C) Maximum

Dial Range

Marking “Cool-Warm,” Graduated in one degree “F” Increments

Sensitivity

Remote Bulb

veraging Bulb T-3111

A

Factory Setpoint T-3200 56F (13C)

Continued on next page. . .

* The maximum length of 5/32 inch tubing is 15 feet. It is recommended that 1/4 inch tubing is used at all times to ensure

proper switchover.

25 psig (172 kPa)

-20 to +150F (-29 to 66C)

T-3100
T-3111
T-3200
T-3311

-3300

T

All Models

T

-3111

T-3111 and

pe

T-3200

T-3100
T-3300
T-3311

T-3100
T-3200
T-3300
T-3311

T

-3111

All Models

Except
T-3200

T-3100
T-3111
T-3300
T-3311

T-3200

T-3100 75F (24C)

T-3300 75F (24C)

Barbed Restrictor Tee for 1/4 inch O.D. Polyethylene Tubing

Straight Connector for 1/4 inch O.D. Polyethylene Tubing;
1/8 inch NPT Barbed Fitting for 5/32 or 1/4 inch O.D.
Polytubing*

1/8 inch NPT, Internal Thread

Bulb with 42 inch (1067 mm) Capillary

8 ft (2438 mm) Averaging with 18 inch (457 mm) Capillary

Bulb with 42 inch (1067 mm) Capillary

60 to 150F (16 to 66C)

Bulb, 60 to 150F (16 to 66C)

Averaging, 30 to 175F (-1 to 80C)

Factory Set at + 7.5F (+ 4C)

2.5 psi/F (31 kPa/C)

0.5 psi/F (31 kPa/C)

T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin 15

pecifications (Cont.)

S

Body
Cover

Material

Accessories (Order Separately) See Table 3.

The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications,
consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

Yoke

Diaphragm

Finish Green Lacquer

All Models
All Models
T-3111 and

T-3311
T-3111 and

T-3311

Die Cast Aluminum

Die Cast Zinc

Die Cast Aluminum

Molded Synthetic Rubber

European Single Point of Contact: NA/SA Single Point of Contact: APAC Single Point of Contact:

JOHNSON CONTROLS
WESTENDHOF 3
45143 ESSEN
GERMANY

JOHNSON CONTROLS
507 E MICHIGAN ST
MILWAUKEE WI 53202
USA

JOHNSON CONTROLS
C/O CONTROLS PRODUCT

MANAGEMENT
NO. 22 BLOCK D NEW DISTRICT
WUXI JIANGSU PROVINCE 214142
CHINA

Controls Group

507 E. Michigan Street
P.O. Box 423
Milwaukee, WI 53201 Printed in U.S.A.

16 T-3100, T-3200, and T-3300 Series Controllers Product/Technical Bulletin