Honeywell T4031A, T4031B, T4031P, T6031A, T6031B Product Information Sheet
T4031A,B,P; T6031A,B
60-2177-3
Refrigeration Temperature Controllers
PRODUCT DATA
FEATURES
• Wide control temperature range is suitable for controlling ducts, tanks, freezers, coolers, display cases. and
defrost termination.
• Universal mounting bracket is available for easy
replacement of other controllers.
• Models are available with various control ranges.
• Control setpoint is dial-knob adjustable.
• Models are available with fixed or adjustable temperature differentials.
• Capillary lengths are 5, 8, or 20 ft (1.5, 2.4, 6.1m)
depending on model.
GENERAL
The T4031A,B,P and T6031A,B are temperature controllers
used in a variety of cooling applications where remote mounting
of the sensing element in the controlled medium is required.
• Reliable snap-acting spst or spdt switch.
• Ambient temperature compensated.
• Insert supplied with TRADELINE® models replaces
setpoint knob to discourage tampering.
Contents
General.................................................................................. 1
Features ................................................................................ 1
Specifications......................................................................... 2
Ordering Information .............................................................. 2
Installation ............................................................................. 3
Operation and Checkout ........................................................ 5
Copyright © 1995 Honeywell Inc. • All Rights Reserved
T4031A,B,P; T6031A,B REFRIGERATION TEMPERATURE CONTROLLERS
SPECIFICATIONS
IMPORTANT
TRADELINE® Models
TRADELINE® Model Available:
Capillary Lengths and Temperature Ranges:
T4031A,B 5 1.5 -30 to 50 -34 to 10 Fixed at 3.5 Fixed at 1.6
T6031A,B 5 1.5 -15 to +90 -9 to +32 Fixed at 3.5 or Adjust. from 3.5 to 12 Fixed at 1.6 or Adjust. from 1.6 to 7
a
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
this unit may not exactly match the specifications
listed. Also, this product is tested and calibrated under
closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.
TRADELINE® models are selected and packaged to
provide ease of stocking, ease of handling, and maximum
replacement value. TRADELINE® model specifications are
the same as those of standard models except as noted
below.
T6031A Refrigeration Temperature Controller-spdt switch,
adjustable temperature differential, tamper-resistant insert.
Copper
Capillary
Tube Length Setting Range
Model ft m °F °C °F °C
20 6.1
T4031P 8 2.4 -30 to +90 -34 to +32 3.5 to 16 1.6 to 9
20 6.1
5 1.5 -30 to +50 -34 to +10
20 6.1
8 2.4 -30 to +90 -34 to +32
Dial scale markings in degrees Fahrenheit
a
Capillary Length:
8 ft (2.4m)
Additional Features:
TRADELINE® pack with cross reference label and special
instructions
Standard Models
T4031A Refrigeration Temperature Controller-spst switch
makes on temperature rise; fixed differential
T4031B Refrigeration Temperature Controller—same as
T4031A but less case
T4031P Refrigeration Temperature Controller—same as
T4031A but uses screw, not knob, to adjust setpoint
T6031A Refrigeration Temperature Controller-spdt switch,
fixed or adjustable temperature differential
T6031B Refrigeration Temperature Controller—same as
T6031A but less case
Switch Action:
T4031A,B,P spst switch makes R to W on temperature rise
T6031A,B spdt switch makes R to W on temperature rise,
R to B on temperature fall
Differential
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or your distributor, refer to the
TRADELINE® catalog or price sheets for complete ordering number, or specify:
1. Order number. 4. Length of copper capillary tube.
2. Setting range. 5. Accessories, if desired.
3. Fixed or adjustable differential (T6031).
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Home and Building Control Sales office (check white pages of your phone directory).
2. Home and Building Control Customer Relations
Honeywell, 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. International
Sales and Service Offices in all principal cities of the world.
60-2177—3
2
T4031A,B,P; T6031A,B REFRIGERATION TEMPERATURE CONTROLLERS
Electrical Ratings:
Normally
Closed
Full Load
8165.1 8
Amp
Locked Rotor
48 80 30.6 40
Amp
a
Makes on temperature rise.
Pilot Duty:
125 VA
Dimensions:
See Fig. 1
2 (51)
15/16
(24)
17/32
(13)
120 Vac 240 Vac
Normally
Open
KNOCKOUT FOR 1/2 IN. (13 MM)
CONDUIT (2)
a
Normally
Closed
2-1/4 (57)
2-1/8 (54)
Normally
Open
7617ABZ Bag Assembly—for mounting controller to fan coil
units
801534 Calibration Wrench
a
7640HY Standoff Bracket Bag Assembly—to mount
controller to an insulated duct
130883 Universal Mounting Bracket
194899 Tamper-resisting Insert Button
Celsius Scaleplates:
194486 D: -15°C to +35°C replaces (0°F to 100°F)
scaleplate
194486H: 15°C to 75°C replaces (55°F to 175°F)
194486F: 75°C to 125°C replaces (160°F to 260°F)
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced service technician.
4. After installation is complete, check out product operation
as provided in these instructions.
4-3/16
(107)
29/32
(23)
3/8
(9)
7/32
(6)
1-3/16
(30)
7/32 (6)
DIA. (3)
3/8 (10)
DIA. (3)
5-5/8
(136)
Fig. 1. Dimensions of T4031, T6031 in in. (mm).
Underwriters Laboratories Inc.:
Listed
Maximum Ambient Operating Temperature:
125°F (52°C)
CAUTION
• Disconnect power supply before installation to prevent
electrical shock and equipment damage.
• Do not damage or change shape of capsule. Deformed capsule will cause calibration offset.
Mounting
Install controller in any convenient location. Make sure that the
sensing bulb reaches the system to be controlled. The ambient
temperature must not exceed 125°F (52°C) in the area where
the controller is installed.
Install the sensing element where it can sense the average
temperature. Avoid sharp bends or kinks in the capillary tubing
that can affect the accuracy of the controller. Carefully coil the
excess capillary tubing and leave it directly beneath the
controller.
M4496
The 130883 Mounting Plate furnished with TRADELINE®
models allows the control to be mounted in existing mounting
holes.
Duct Installation
Position the sensing bulb in the duct to sense the average air
temperature. Avoid mounting the bulb close to hot pipes,
cooling coils, etc.
Accessories:
112622AA Immersion Well—short-necked, 1/2 in. NPT,
copper
7617ABY Compression Fitting—50 psi water, 15 psi air
107324A Bulb Holder—for duct installation
105900 T-strap—for strapping bulb to pipe
The 107324A Bulb Holder is available for suspending the bulb
in a duct. See Fig. 2.
3
60-2177—3
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