Honeywell TH3210D Thermostat User Manual

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Installation  
Guide  
TH3210D  
Non-programmable Digital Thermostat  
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Product Application  
This thermostat provides electronic control of 24 VAC heat pump systems with aux-  
iliary heat (2 heat/1 cool).  
Power Type  
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Battery power  
Common wire  
Common wire with battery backup  
System Settings  
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Heat, Off, Cool, Em Heat  
Fan Settings  
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Auto, On  
Must be installed by a trained, experienced technician  
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Read these instructions carefully. Failure to follow these instructions can dam-  
age the product or cause a hazardous condition.  
Check the ratings in this booklet to verify that this product is suitable for your  
application (see page 11).  
Always test for proper operation after installation (see pages 7-8).  
CAUTION: ELECTRICAL HAZARD  
Can cause electrical shock or equipment damage. Disconnect power before  
beginning installation.  
MERCURY NOTICE  
If this product is replacing a control that contains mercury in a sealed tube, do not  
place the old control in the trash. Contact your local waste management authority for  
instructions regarding recycling and proper disposal.  
®
U.S. Registered Trademark. Patents pending.  
Copyright © 2005 Honeywell International Inc. All rights reserved.  
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PRO TH3210D Non-programmable Digital Thermostat  
Table of contents  
Installation  
Pre-installation checklist ................2  
Appendices  
Quick reference to controls............9  
Quick reference to display..............9  
Compressor protection ..................9  
In case of difficulty ......................10  
Accessories....................................11  
Specifications ................................11  
Wallplate installation ......................3  
Wiring..............................................4  
Wiring diagrams ..............................5  
Installer Setup  
Battery installation ..........................6  
Thermostat mounting ....................6  
Installer setup..................................7  
Installer system test ........................7  
Installation tips  
Install the thermostat about 5 feet (1.5m) above the floor in an area  
with good air circulation at average temperature.  
NO  
NO  
NO  
Do not install in locations where the thermostat can be affected by:  
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Drafts or dead spots behind doors and in corners  
Hot or cold air from ducts  
Sunlight or radiant heat from appliances  
Concealed pipes or chimneys  
Unheated/uncooled areas such as an outside wall behind the thermostat  
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Installation Guide  
Pre-installation checklist  
Package contents  
Check to make sure your package includes the following items:  
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PRO TH3210D digital thermostat (wallplate attached to back)  
Operating manual  
Wall anchors and mounting screws (2 each)  
AA alkaline batteries (2)  
Required tools & supplies  
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No. 2 Phillips screwdriver  
Small pocket screwdriver  
Drill  
Drill bit (3/16”for drywall, 7/32”for plaster)  
Hammer  
Pencil  
Electrical tape  
Level (optional)  
2
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PRO TH3210D Non-programmable Digital Thermostat  
Wallplate installation  
Grasp top and bottom of wallplate  
and pull to remove from thermostat.  
Remove the wallplate from the ther-  
mostat as shown at left, then follow  
directions below for mounting.  
1
2
Pull wires through wire hole.  
Position wallplate on wall, level and  
mark hole positions with pencil.  
3
4
Drill holes at marked positions as  
shown below, then tap in  
supplied wall anchors.  
Place wallplate over anchors, insert  
and tighten mounting screws.  
Drill 3/16” holes for drywall.  
Drill 7/32” holes for plaster.  
Wire hole  
Mounting screws  
Wall anchors  
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Installation Guide  
Wiring  
CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or equipment damage.  
Disconnect power before wiring.  
Wiring  
Keep wires in this  
shaded area  
1
2
3
Loosen screw terminals, insert  
wires into terminal block, then re-  
tighten screws.  
Push excess wire back into the  
wall opening. Keep wires in shaded  
area as shown at left.  
Plug the wall opening with non-  
flammable insulation to prevent  
drafts from affecting thermostat  
operation.  
Terminal  
block  
Terminal Designations  
E
Emergency heat relay.  
Aux Auxiliary heat relay.  
NOTES  
Y
G
O
Compressor contactor.  
Fan relay.  
C terminal  
The C (common wire) terminal is optional  
when thermostat is powered by batteries.  
Heat pump changeover valve  
energized in cooling.  
L terminal  
Heat pump reset. L terminal is powered con-  
tinuously when thermostat is set to Em Heat.  
L
Heat pump reset.  
R
Power wire from secondary  
side of system transformer.  
Wire specifications  
Use 18- to 22-gauge thermostat wire.  
Shielded cable is not required.  
B
Heat pump changeover valve  
energized in heating.  
C
Common wire from secondary  
side of system transformer.  
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PRO TH3210D Non-programmable Digital Thermostat  
Wiring diagram  
1
2
3
4
5
Power supply. Provide disconnect means and overload protection as required.  
Optional 24 VAC common connection.  
Use either O or B terminals for changeover valve.  
L terminal is powered continuously when thermostat is set to Em Heat.  
Install field jumper between E and Aux if there is no emergency heat relay.  
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Installation Guide  
Power options & mounting  
AC Power  
The thermostat can be powered by 24  
VAC power, or by batteries.  
To wire the thermostat for AC power,  
connect the common side of the  
transformer to the“C”terminal as  
shown at left.  
Connect common  
side of transformer  
to “C” terminal  
Battery Power  
The thermostat can be powered by  
batteries alone or, if used with AC  
power, can provide backup power to  
the display during power interruptions.  
Install batteries in back of thermostat  
(optional if AC powered).  
To Mount Thermostat  
Align the 4 tabs on the wallplate with  
corresponding slots on the back of the  
thermostat, then push gently until the  
thermostat snaps in place.  
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PRO TH3210D Non-programmable Digital Thermostat  
Installer setup  
Follow the procedure below to configure the thermostat to match the installed  
heating/cooling system, and customize feature operation as desired.  
Press and hold both buttons  
Function  
number  
Setting  
Setup  
5
6
To begin, press and hold the  
and  
Press  
to change settings  
buttons until the display changes  
Press  
to advance to next function  
Press and hold  
to exit and save settings  
Setup Function  
Settings & Options  
6
Auxiliary heat  
cycle rate (CPH)  
5
1
3
9
For gas or oil furnaces of less than 90% efficiency  
For steam or gravity systems  
For hot water systems & furnaces of over 90% efficiency  
For electric furnaces  
[Other cycle rate options: 2, 4, 6, 7, 8, 10, 11 or 12 CPH]  
8
Emergency heat  
cycle rate (CPH)  
9
1
3
5
For electric furnaces  
For steam or gravity systems  
For hot water systems & furnaces of over 90% efficiency  
For gas or oil furnaces of less than 90% efficiency  
[Other cycle rate options: 2, 4, 6, 7, 8, 10, 11 or 12 CPH]  
9
4
5
Compressor  
3
Recommended for most compressors  
cycle rate (CPH)  
[Other cycle rate options: 1, 2, 4, 5 or 6 CPH]  
1
1
Temperature  
display  
0
1
Fahrenheit  
Celsius  
Compressor  
protection  
5
Five-minute compressor off time **See page 9  
[Other options: 0, 1, 2, 3 or 4-minute off time]  
Installer system test  
After completing the installer setup above, press the  
system test (see next page).  
button again to begin a  
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Installation Guide  
Installer system test  
Follow the procedure below to test the heating and cooling system.  
System test  
number  
System status  
0
10  
Test  
System switch  
1
2
3
4
5
5
Set SYSTEM switch to Heat.  
Press  
Press  
to turn on and check systems (see table, below).  
until systems turn off.  
Set SYSTEM switch to Em Heat and repeat steps 2-3 above.  
Set SYSTEM switch to Cool and repeat steps 2-3 above.  
Press and hold  
to terminate test at any time.  
System Test  
System Status  
1
0
Heating system  
Emergency heat  
Cooling system  
0
1
2
Compressor and fan turn off.  
Compressor and fan turn on.  
Auxiliary heat turns on.  
20  
0
1
2
Heat and fan turn off.  
Heat and fan turn on.  
Auxiliary heat turns on.  
3
0
0
0
1
Compressor and fan turn off.  
Compressor and fan turn on.  
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Thermostat  
information  
71 Software revision number (major revisions)  
72 Software revision number (minor revisions)  
73 Configuration identification code (major)  
(for reference only)  
74 Configuration identification code (minor)  
75 Production configuration date code (week)  
76 Production configuration date code (year)  
CAUTION: EQUIPMENT DAMAGE HAZARD  
Compressor protection (minimum off time) is bypassed during testing. To prevent  
equipment damage, avoid cycling the compressor quickly.  
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PRO TH3210D Non-programmable Digital Thermostat  
Quick reference to controls  
Digital display screen  
Temperature buttons  
Press to adjust temperature  
settings  
System switch  
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Cool: Thermostat controls only  
the cooling system.  
Heat: Thermostat controls only  
the heating system.  
Off: Heating and cooling  
systems are off.  
Fan switch  
Em Heat: Thermostat controls  
emergency and auxiliary heat.  
Compressor is locked out.  
On: Fan runs continuously.  
Auto: Fan runs only when heating  
or cooling system is on.  
Quick reference to display screen  
Current inside temperature  
Temperature setting  
Inside  
Set To  
System status  
°
°
5
Low battery warning  
Em: Emergency heat on  
Aux: Auxiliary heat on  
Heat On/Cool On:  
(Flashes when waiting  
for compressor restart)  
7
7
5
Em Aux  
Heat On  
Replace Batt  
Built-in compressor protection (Setup Function 15)  
This feature helps prevent damage to the  
compressor.  
Inside  
Set To  
°
°
5
Damage can occur if the compressor is re-  
started too soon after shutdown.This feature  
forces the compressor to wait for a few min-  
utes before restarting.  
7
75  
Cool On  
During the wait time, the message Cool On  
or Heat On will flash on the display.When  
the safe wait time has elapsed, the message  
stops flashing and the compressor turns on.  
Message flashes until safe  
restart time has elapsed  
9
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Installation Guide  
In case of difficulty  
If you have difficulty with your thermostat, please try the suggestions below. Most  
problems can be corrected quickly and easily.  
Display is blank  
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Check circuit breaker and reset if necessary.  
Make sure heating & cooling power switches are on.  
Make sure equipment door is securely closed.  
If battery powered, make sure fresh AA alkaline batteries are installed.  
Temperature  
settings do not  
change  
Make sure heating and cooling temperatures are set to acceptable ranges:  
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Heat: 40° to 90°F (4.5° to 32°C).  
Cool: 50° to 99°F (10° to 37°C).  
Heating system  
does not respond  
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•
Check for 24 Vac at the equipment on the secondary side of the trans-  
former between power and common. If voltage is not present, check the  
heating equipment to find the cause of the problem.  
(“Heat On”  
appears on  
screen)  
Check for 24 Vac between the heat terminal (Y) and the transformer  
common. If 24 Vac is present, the thermostat is functional. Check the  
heating equipment to find the cause of the problem.  
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•
Check for loose or broken wires between the thermostat and the heating  
equipment.  
Cooling system  
does not respond  
Check for 24 Vac at the equipment on the secondary side of the trans-  
former between power and common. If voltage is not present, check the  
cooling equipment to find the cause of the problem  
(“Cool On”  
appears on  
screen)  
•
Check for 24 Vac between the cooling terminal (Y) and the transformer  
common. If 24 Vac is present, the thermostat is functional. Check the  
cooling system to find the cause of the problem.  
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•
Check for loose or broken wires between the thermostat and the cooling  
equipment.  
“
“
Cool On” or  
Heat On”  
Compressor protection timeout is engaged. Wait 5 minutes for the  
system to restart safely, without damage to the compressor.  
is flashing  
“
Heat On” is  
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•
Set the System switch to Heat, and set the temperature level above the  
current room temperature.  
not displayed  
“Cool On” is  
Set the System switch to Cool, and set the temperature level below the  
current room temperature.  
not displayed  
10  
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PRO TH3210D Non-programmable Digital Thermostat  
Accessories  
Please contact your distributor to order accessories.  
Cover plate assembly ............................................Part Number 50002883-001  
(Used to cover marks left by old thermostats.)  
Specifications  
Temperature Ranges  
Electrical Ratings  
System Voltage (50/60Hz) Running Current  
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Heat: 40° to 90°F (4.5° to 32°C)  
Cool: 50° to 99°F (10° to 37°C)  
st  
Operating Ambient Temperature  
32° to 120°F (0° to 48.9°C)  
Heat (1 stage)  
20-30 Vac  
0.02-1.0 A  
0.02-1.0 A  
0.02-1.0 A  
0.02-1.0 A  
•
Emergency heat 20-30 Vac  
Shipping Temperature  
-20° to 120°F (-28.9° to 48.9°C)  
Auxiliary heat  
Cooling  
20-30 Vac  
20-30 Vac  
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Operating Relative Humidity  
5% to 90% (non-condensing)  
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Physical Dimensions  
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3-13/16” H x 5-3/8” W x 1-1/4” D  
97 mm H x 137 mm W x 32 mm D  
11  
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Automation and Control Solutions  
Honeywell International Inc.  
985 Douglas Drive North  
Golden Valley, MN 55422  
Honeywell Limited-Honeywell Limitée  
1
35 Dynamic Drive  
Scarborough, Ontario M1V 4Z9  
http://yourhome.honeywell.com  
Printed in U.S.A. on recycled  
paper containing at least 10%  
post-consumer paper fibers.  
®
©
U.S. Registered Trademark.  
2005 Honeywell International Inc.  
Patents pending. All rights reserved.  
9-1775 • 06-2005  
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