Honeywell T4039A Thermostat User Manual

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T4039A,B,D-M,S,V  
Line Voltage Cooling and  
Heating-Cooling Thermostats  
T4039 Thermostats Control Line Voltage Valves of  
a fan coil unit in cooling, manual changeover heat-  
ing-cooling, or automatic changeover heating-cool-  
ing systems. One or two valves may be controlled  
directly by the thermostat. The fan switch (where  
applicable) controls air circulation.  
■
■
1-, 2-, or 3-speed manual fan control available.  
■ Color-coded leadwires.  
Positive deadspot separates heating-cooling circuits  
in automatic models. Remote changeover switch is  
required to separate circuits in manual changeover  
heating-cooling models.  
■ All models can be mounted on standard vertical  
outlet boxes. Models with manual switching can be  
mounted on 4 in. square junction boxes or 2-  
ganged outlet boxes.  
■
■
Scale range is approximately 55° F to 95° F [13° to  
■ Adjustable range stops limit temperature adjust-  
3
5° C] in 10° F [6° C] increments from 75° F [24°  
ment or lock at selected setpoint.  
C] midpoint. Scale is marked COOL-WARM.  
■
Models available with separate power source for  
fan and thermostat.  
Cooling circuit breaks in FAN-OFF position to re-  
duce condensation problems in the fan coil unit.  
CONTENTS  
Specifications ................................................. 2  
Ordering Information ..................................... 2  
Installation ..................................................... 5  
Operation ....................................................... 8  
Checkout......................................................... 8  
J. H. • Rev. 0-92 • ©Honeywell Inc. 1992 • Form Number 60-2241—8  
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T4039A,B,D-M,S,V  
SPECIFICATIONS • ORDERING INFORMATION  
Specifications  
MODELS:  
ELECTRICAL RATINGS:  
A. Thermostat (valve load).  
Manual  
a
System  
Cooling Only  
Switching  
Model  
T4039A  
T4039B  
Normal (A)  
0.32  
Inrush (B)  
1.00  
b
Off-On  
120 Vac  
240 Vac  
277 Vac  
Cooling Only  
Hi-Med-Lo  
0.16  
0.14  
0.50  
b
Off-On  
0.43  
c
Heating-Cooling  
—
T4039D  
T4039E  
T4039F  
d
Off-On  
B. Fan Switch  
c
b
Heating Cooling  
Off-Hi-Lo  
—
Full Load (A)  
5.5  
Locked Rotor (A)  
c
Heating-Cooling  
Hi-Med-Lo  
120 Vac  
33.0  
16.5  
14.4  
b
Off-On  
2
40 Vac  
77 Vac  
2.75  
Automatic Heating-Cooling  
Automatic Heating-Cooling  
None  
T4039G  
T4039H  
2
2.4  
—
d
10A  
5A  
Resistive at 125 Vac  
Resistive at 240 Vac  
Resistive at 277 Vac  
Off-On  
b
Automatic Heating-Cooling  
Automatic Heating-Cooling  
Off-Hi-Lo  
T4039J  
d
4.2A  
Off-Hi-Lo  
T4039K  
—
b
Automatic Heating-Cooling  
Autoamtic Heating-Cooling  
Automatic Heating-Cooling  
Automatic Heating-Cooling  
a
Hi-Med-Lo  
Off-On  
T4039L  
T4039M  
T4039S  
T4039V  
TEMPERATURE SETTING RANGE: Approximately  
5° F to 95° F [13° C to 35° C]; marked COOL-  
5
Hi-Med-Lo  
Off-On  
d
WARM in 10° F [6° C] increments from 75° F [24° C]  
midpoint.  
Hi-Med-Lo  
Heat-Off-Cool  
d
DIFFERENTIAL: Approximately 2° F [1° C] at mid-  
scale. On automatic heating-cooling models, the  
differential from make of one contact to make of  
the opposite contact is 7° F [4° C] maximum with a  
positive deadspot.  
Hi-Lo  
Off-On  
d
See Fig. 4 for arrangements of switches.  
OFF breaks cooling circuit and fan circuit.  
Remote changeover switch required.  
b
c
d
DIMENSIONS: See Figs. 1 and 2.  
OFF breaks both heating and cooling circuits and  
fan circuit.  
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. Model number.  
If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:  
1
2
. Your local Honeywell Home and Building Control Sales Office (check white pages of your phone directly).  
. Home and Building Control Customer Satisfaction  
Honeywell Inc., 1885 Douglas Drive North  
Minneapolis, Minnesota 55422-4386 (612) 951-1000  
In Canada—Honeywell Limited/Honeywell Limitée, 740 Ellesmere Road, Scarborough, Ontario M1P 2V9. International Sales and  
Service offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico,  
Netherlands, Spain, Taiwan, United Kingdom, U.S.A.  
2
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T4039A,B,D-M,S,V  
SPECIFICATIONS  
FINISH: Silver bronze. T4039M is available in white.  
also mount on a standard vertical outlet box if local  
codes permit. See Fig. 3.  
MOUNTING: Models without manual switching mount  
on standard vertical outlet boxes. Models with manual  
switching mount on 4-in. square junction boxes or  
UNDERWRITERS LABORATORIES, INC. LISTED: File  
No. E4436, Vol. 2, dated 3-19-73; Guide No. XAPX.  
2
-ganged outlet boxes. Manual switching models may  
Fig. 1—Mounting dimensions in in. [mm] of  
T4039 models with manual switching.  
Fig. 2—Mounting dimensions in in. [mm] of  
T4039 models without manual switching.  
3
60-2241—8  
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T4039A,B,D-M,S,V  
SPECIFICATIONS  
Fig. 3—Mounting T4039.  
4
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T4039A,B,D-M,S,V  
INSTALLATION  
Installation  
WHEN INSTALLING THIS PRODUCT…  
. Read these instructions carefully. Failure to follow  
them could damage the product or cause a hazardous  
MOUNTING  
Models without manual switching mount on standard  
vertical outlet boxes. Models with manual switching  
mount on 4-in. square junction boxes or 2-ganged outlet  
boxes. Manual switching models can also mount on stan-  
dard vertical outlet boxes if local electrical codes permit.  
Mount thermostat on side wall about 5 ft. [1.5 m] above  
the floor. Do not mount where thermostat can be affected by  
drafts, radiant heat from the sun or other sources of heat.  
Use Allen wrench to open cover and mount according  
to Fig. 3. Two mounting screws are provided.  
1
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 the installation is complete, check out product  
operation as provided in these instructions.  
WIRING  
Disconnect power supply before beginning installa-  
tion to avoid electrical shock or equipment damage. All  
wiring must comply with local codes and ordinances.  
Internal schematic and external connections for the  
T4039 are shown in Fig. 4. Use solderless connectors or  
other approved methods to wire thermostat into the sys-  
tem. Six-inch color-coded leadwires are provided.  
CAUTION  
Disconnectpowersupplytopreventelectricalshock  
or equipment damage.  
Before mounting, be sure to remove cardboard shipping  
inserts that protect the contacts.  
SETTING  
1
. Remove T4039 cover by loosening the cover screw  
with Allen wrench.  
. Openthecardboardinsidecoverbypressinginwardon  
the left side to release latch. Do not remove this cover.  
. Carefully remove the shipping inserts from around the  
snap contacts.  
. Check contact operation before mounting device.  
The T4039 temperature scale is marked COOL-WARM  
with approximate scale divisions of 10° F from 75° F  
2
[
24° C] midpoint. The range is approximately 55° F to 95°  
F [13° C to 35° C]. Set lever at desired temperature.  
To adjust the temperature setpoint range stops, Fig. 3,  
locate stops at the desired temperature range setpoint  
and insert.  
3
4
5
60-2241—8  
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T4039A,B,D-M,S,V  
INSTALLATION  
Fig. 4—Internal schmeatics and external connections for T4039 Thermostats.  
BLUE  
RISE  
TO FAN  
T4039A  
1
OFF  
ON  
RED  
TO COOLING  
CONTROL  
HI  
MED  
T4039F  
YELLOW  
ORANGE  
L1 (HOT)  
LO  
3
LO  
MED  
HI  
BLUE  
TAN  
L1 (HOT)  
TO FAN  
SPEED CONTROL  
YELLOW  
RISE RISE  
OFF  
BROWN  
TO HEATING  
CONTROL  
1
ON  
HI  
ORANGE  
RED  
L1 (HOT)  
T4039B  
TO COOLING  
CONTROL  
MED  
LO  
BLUE  
TAN  
TO FAN  
SPEED CONTROL  
YELLOW  
RISE  
T4039G  
RED  
1
OFF  
ON  
RED  
TO COOLING  
CONTROL  
TO COOLING  
CONTROL  
ORANGE  
L1 (HOT)  
RISE  
BROWN  
TO HEATING  
CONTROL  
ORANGE  
L1 (HOT)  
T4039D  
TO FAN  
BLUE  
RED  
TO COOLING CONTROL  
T4039H  
RISE RISE  
BLUE  
RED  
TO FAN  
BROWN  
TO HEATING  
CONTROL  
TO COOLING CONTROL  
OFF  
ON  
RISE  
BROWN  
TO HEATING  
CONTROL  
2
YELLOW  
ORANGE  
L1 (HOT)  
OFF  
ON  
3
L1 (HOT)  
2
YELLOW  
ORANGE  
L1 (HOT)  
3
L1 (HOT)  
T4039E  
RED  
TO COOLING CONTROL  
RISE RISE  
1
OFF BREAKS COOLING AND FAN CIRCUITS.  
OFF  
HI  
LO  
BROWN  
TO HEATING  
CONTROL  
2
3
OFF BREAKS HEATING, COOLING AND FAN CIRCUITS.  
1
SEPARATE POWER SOURCE FOR THERMOSTAT AND  
FAN. CONNECT ORANGE AND YELLOW FOR  
SINGLE POWER SOURCE IF NEEDED.  
ORANGE  
L1 (HOT)  
LO  
HI  
BLUE  
YELLOW  
M5353  
TO FAN  
SPEED CONTROL  
6
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T4039A,B,D-M,S,V  
INSTALLATION  
Fig. 4—Internal schmeatics and external connections for T4039 Thermostats (Continued).  
T4039J  
RED  
TO COOLING  
1
CONTROL  
RISE  
T4039M  
OFF  
BROWN  
TO HEATING  
CONTROL  
MED BLACK  
HI  
HI  
YELLOW  
BLUE  
TO FAN  
SPEED CONTROL  
ORANGE  
L1 (HOT)  
LO  
LO  
HI  
LO  
HI  
BLUE  
YELLOW  
TO FAN  
SPEED CONTROL  
MED  
LO  
RED  
TO COOLING  
CONTROL  
RISE  
BROWN  
TO HEATING  
CONTROL  
OFF  
2
TYPICAL T4039K  
4
ON  
ORANGE  
L1 (HOT)  
RED  
TO COOLING  
CONTROL  
RISE  
BROWN  
TO HEATING  
CONTROL  
2
OFF  
HI  
ORANGE  
L1 (HOT)  
TO FAN  
T4039S  
LO  
MED  
HI  
TAN  
LO  
HI  
BLUE  
YELLOW  
BLUE  
TO FAN  
SPEED CONTROL  
YELLOW  
SPEED CONTROL  
LO  
HI  
MED  
LO  
BROWN  
TO HEATING  
CONTROL  
HI  
T4039L  
HEAT  
OFF  
MED  
LO  
RISE  
2
COOL  
ORANGE  
RED  
LO  
BLUE  
TAN  
L1 (HOT)  
MED  
TO FAN  
SPEED CONTROL  
HI  
YELLOW  
TO COOLING  
CONTROL  
RISE  
1
OFF  
BROWN  
TO HEATING  
CONTROL  
ON  
ORANGE  
RED  
L1 (HOT)  
TO COOLING  
CONTROL  
T4039V  
LO  
HI  
BROWN  
RED  
TO FAN  
SPEED CONTROL  
1
2
OFF BREAKS COOLING AND FAN CIRCUITS.  
HI  
OFF BREAKS HEATING, COOLING AND FAN CIRCUITS.  
LO  
3
SEPARATE POWER SOURCE FOR THERMOSTAT AND  
FAN. CONNECT ORANGE AND YELLOW FOR SINGLE  
POWER SOURCE IF NEEDED.  
BLUE  
TO COOLING  
CONTROL  
RISE  
4
THE WIRE COLORS OF THE T4039K1024 MODEL DIFFER  
FROM THE TYPICAL T4039K MODELS AS FOLLOWS:  
2
YELLOW  
TO HEATING  
CONTROL  
OFF  
TYPICAL  
YELLOW  
BROWN  
BLUE RED BROWN ORANGE  
RED  
BLUE YELLOW BLACK  
T4039K  
T4039K1024  
ON  
BLACK  
L1 (HOT)  
M5352  
7
60-2241—8  
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Operation  
In heating applications, as the temperature drops, the  
thermostat heating contacts make to open a valve that  
allows hot water to flow through the coil. On select models,  
the speed at which the heat is circulated is controlled  
manually by the fan switch.  
In cooling applications, as the temperature rises, the  
thermostat cooling contacts close to open a valve that  
allows cold water to flow through the coil. Cooling mecha-  
nism will not operate if manual switch is in the OFF  
position. Models T4039D,H,K,M,S,V will also turn off  
the heating valve when the manual switch is in OFF.  
In manual changeover heating-cooling models, the  
thermostat must be used with a remote changeover switch  
or control to select the proper heating or cooling cycle  
for the thermostat.  
CALIBRATION  
The T4039 is accurately calibrated at the factory under  
controlled conditions. Do not attempt to field calibrate  
this device.  
Checkout  
Check the T4039 before leaving the installation. Raise  
the temperature setting to start the heating cycle or lower  
the setting to start the cooling cycle. Check both cycles  
on heating-cooling models.  
Home and Building Control  
Home and Building Control  
Honeywell International, Inc.  
Honeywell Limited—Honeywell Limitée  
35 Dynamic Drive  
1
985 Douglas Drive North  
Golden Valley, MN 55422  
Scarborough, Ontario  
M1V 4Z9  

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