Honeywell TH5220D Thermostat User Manual

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Installation  
Guide  
TH5220D  
Non-programmable Digital Thermostat  
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Product Application  
This thermostat provides electronic control of 24 VAC single-stage and multi-stage  
heating and cooling systems, or 750 mV heating systems.  
System Types  
up to 2 heat/2 cool)  
Power Options  
(
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•
Battery power only  
•
•
•
Gas, oil, or electric heat with air  
conditioning  
Common wire only  
Common wire with battery backup  
Warm air, hot water, high-efficiency  
furnaces, heat pumps, steam, gravity  
Changeover Options  
Heat only — two-wire systems,  
power to open and close zone  
valves (Series 20), and normally-  
open zone valves  
•
Selectable manual or  
auto-changeover modes  
System Settings  
•
•
Heat only with fan  
Cool only  
•
Heat, Off, Cool,Auto, Em Heat  
•
750 mV heating systems  
Fan Settings  
•
Auto, On  
Must be installed by a trained, experienced technician  
•
•
•
Read these instructions carefully. Failure to follow these instructions can  
damage 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 17).  
Always test for proper operation after installation (see page 13).  
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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Table of contents  
Installation  
Appendices  
Pre-installation checklist ................2  
Wallplate installation ......................3  
Wiring..............................................4  
Wiring diagrams ..............................5  
Power options ..............................10  
Thermostat mounting ..................10  
Quick reference to controls..........15  
Quick reference to display............15  
Battery replacement......................15  
In case of difficulty ......................16  
Accessories/replacement parts ....17  
Specifications ................................17  
Setup and testing  
Installer setup................................11  
Installer system test ......................13  
Explanation of features ................14  
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:  
•
•
•
•
•
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  
1
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Installation Guide  
Pre-installation checklist  
Package contents  
Check to make sure your package includes the following items:  
™
FocusPRO TH5220D  
digital thermostat  
Operating manual  
(wallplate attached to back)  
Wall anchors and  
mounting screws  
AA alkaline  
batteries (2)  
(2 each)  
Required tools & supplies  
•
•
•
•
•
•
•
•
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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™
FocusPRO TH5220D Non-programmable Digital Thermostat  
Wallplate installation  
Insert finger into wire hole and pull to  
remove wallplate 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  
3
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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 Designations  
Conventional Terminal Letters:  
Y2 2nd stage compressor contactor  
W2 2nd stage heat relay  
Heat Pump  
Conventional  
G
W
C
Fan relay  
1st stage heat relay  
NOTES  
Common wire from secondary side of  
cooling system transformer  
1st stage compressor contactor  
Heating power. Connect to secondary  
side of heating system transformer.  
R & Rc terminals  
In single-transformer system, leave metal  
jumper in place between R & Rc. Remove  
metal jumper if two-transformer system.  
Y
R
Rc Cooling power. Connect to secondary  
C terminal  
side of cooling system transformer.  
The C (common wire) terminal is optional  
when thermostat is powered by batteries.  
Heat Pump Terminal Letters:  
L
Heat pump reset. L terminal powered  
continuously when System is set to Em  
Heat.  
W (O/B) terminal  
If thermostat is configured for a heat pump  
in the Installer Setup, configure changeover  
valve for cool (“O” factory setting) or heat  
E
Emergency heat relay  
Aux Auxiliary heat relay  
G Fan relay  
O/B Changeover valve for heat pumps  
(“B”).  
L terminal (Output)  
C
Common wire from secondary side of  
cooling system transformer.  
Compressor contactor  
Heating power. Connect to secondary  
side of heating system transformer.  
Heat pump reset. L terminal powered contin-  
uously when thermostat is set to Em Heat.  
Configure thermostat for 2 heat / 1 cool heat  
pump in the Installer Setup.  
Y
R
Rc Cooling power. Connect to secondary  
Wire specifications  
side of cooling system transformer.  
Use 18- to 22-gauge thermostat wire.  
Shielded cable is not required.  
4
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™
FocusPRO TH5220D Non-programmable Digital Thermostat  
Wiring diagrams  
Power supply. Provide disconnect means and overload protection as required.  
Factory-installed jumper. Remove for 2-transformer systems only.  
Optional 24VAC common connection.  
In Installer Setup, set system type to Heat Only.  
In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B.  
In Installer Setup, set system type to 2Heat/1Cool Heat Pump.  
L terminal is powered continuously when thermostat is set to Em Heat.  
Install field jumper between Aux and E if there is no emergency heat relay.  
In Installer Setup, set system type to 2Heat/2Cool conventional.  
Typical 1H/1C system: 1 transformer  
Typical 1H/1C system: 2 transformers  
Remove  
jumper  
5
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Installation Guide  
Wiring diagrams  
Power supply. Provide disconnect means and overload protection as required.  
Factory-installed jumper. Remove for 2-transformer systems only.  
Optional 24VAC common connection.  
In Installer Setup, set system type to Heat Only.  
In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B.  
In Installer Setup, set system type to 2Heat/1Cool Heat Pump.  
L terminal is powered continuously when thermostat is set to Em Heat.  
Install field jumper between Aux and E if there is no emergency heat relay.  
In Installer Setup, set system type to 2Heat/2Cool conventional.  
Typical 1H/1C heat pump system  
Typical heat-only system  
6
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™
FocusPRO TH5220D Non-programmable Digital Thermostat  
Wiring diagrams  
Power supply. Provide disconnect means and overload protection as required.  
Factory-installed jumper. Remove for 2-transformer systems only.  
Optional 24VAC common connection.  
In Installer Setup, set system type to Heat Only.  
In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B.  
In Installer Setup, set system type to 2Heat/1Cool Heat Pump.  
L terminal is powered continuously when thermostat is set to Em Heat.  
Install field jumper between Aux and E if there is no emergency heat relay.  
In Installer Setup, set system type to 2Heat/2Cool conventional.  
Typical heat-only system with fan  
Heat-only system (Series 20)  
7
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Installation Guide  
Wiring diagrams  
Power supply. Provide disconnect means and overload protection as required.  
Factory-installed jumper. Remove for 2-transformer systems only.  
Optional 24VAC common connection.  
In Installer Setup, set system type to Heat Only.  
In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B.  
In Installer Setup, set system type to 2Heat/1Cool Heat Pump.  
L terminal is powered continuously when thermostat is set to Em Heat.  
Install field jumper between Aux and E if there is no emergency heat relay.  
In Installer Setup, set system type to 2Heat/2Cool conventional.  
Typical cool-only system  
Heat-only system (normally open zone valve)  
8
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™
FocusPRO TH5220D Non-programmable Digital Thermostat  
Wiring diagrams  
Power supply. Provide disconnect means and overload protection as required.  
Factory-installed jumper. Remove for 2-transformer systems only.  
Optional 24VAC common connection.  
In Installer Setup, set system type to Heat Only.  
In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B.  
In Installer Setup, set system type to 2Heat/1Cool Heat Pump.  
L terminal is powered continuously when thermostat is set to Em Heat.  
Install field jumper between Aux and E if there is no emergency heat relay.  
In Installer Setup, set system type to 2Heat/2Cool conventional.  
Typical 2H/2C system (1 transformer)  
Typical 2H/1C heat pump system  
9
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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 cool-  
ing transformer to the“C”terminal as  
shown at left.  
Connect common  
side of transformer  
to “C” terminal  
Jumper  
Important: Remove R/Rc jumper for  
2-transformer systems only. (See wiring  
diagram on page 5.)  
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.  
After installation, batteries can be  
changed without removing the ther-  
mostat from the wall (see page 15).  
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.  
10  
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™
FocusPRO TH5220D 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.  
Function  
number  
Setting  
1
0
Done  
Next  
To begin, press and hold the  
buttons until the display changes  
and FAN  
Press  
or  
to change settings  
Press NEXT to advance to next function  
Press DONE to exit and save settings  
Setup Function  
Settings & Options  
1
System type  
0
1
2
Gas, oil or electric heat with air conditioning  
1 heat/1 cool heat pump  
Heat only (2-wire systems/power to open & close zone valves/  
normally open zone valves)  
Heat only with fan  
3
4
5
6
7
8
Cool only  
2 heat/1 cool heat pump  
2 heat/2 cool conventional  
2 heat/1 cool conventional  
1 heat/2 cool conventional  
2
3
5
Changeover valve  
0
Changeover valve (O/B terminal energized in cooling)  
(
O/B terminal)  
1
Changeover valve (O/B terminal energized in heating)  
Fan control  
heating)  
0
1
Gas or oil furnace — equipment controls fan in heating  
Electric furnace — thermostat controls fan in heating  
(
Heat cycle rate  
CPH: cycles/hour)  
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]  
6
Second stage heat  
cycle rate/  
5
1
3
9
For gas or oil furnaces of less than 90% efficiency  
For steam or gravity systems  
Auxiliary heat  
For hot water systems & furnaces of over 90% efficiency  
For electric furnaces  
(CPH)  
[Other cycle rate options: 2, 4, 6, 7, 8, 10, 11 or 12 CPH]  
Continued on next page >  
11  
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Installation Guide  
Installer setup  
Follow the procedure below to configure the thermostat to match the installed  
heating/cooling system, and customize feature operation as desired.  
Function  
number  
Setting  
1
0
Done  
Next  
To begin, press and hold the  
buttons until the display changes  
and FAN  
Press  
or  
to change settings  
Press NEXT to advance to next function  
Press DONE to exit and save settings  
Setup Function  
Settings & Options  
8
Emergency heat  
cycle rate (CPH)  
9
1
3
5
For electric emergency heat  
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
0
Compressor  
3
3
Recommended for most compressors  
cycle rate (CPH)  
[Other cycle rate options: 1, 2, 4, 5 or 6 CPH]  
1
Second stage  
compressor cycle  
rate (CPH)  
Recommended for most compressors  
[Other cycle rate options: 1, 2, 4, 5 or 6 CPH]  
12  
System setting  
adjustment  
0
1
2
Manual changeover (Heat/Cool/Off)  
Auto changeover (Heat/Cool/Auto/Off) **See page 14  
Auto changeover only (Auto) **See page 14  
14  
15  
26  
27  
28  
Temperature  
display  
0
Fahrenheit  
1
Celsius  
Compressor  
protection  
5
Five-minute compressor off time **See page 14  
[Other options: 0, 1, 2, 3 or 4-minute off time]  
Auxiliary heat  
control  
0
1
Comfort **See page 14  
Economy  
Heat temperature  
range stops  
90  
Highest heating temperature setting  
40-89 Heating temperature range (increments of 1°F, or 0.5°C)  
Cool temperature  
range stops  
50  
Lowest cooling temperature setting  
51-99 Cooling temperature range (increments of 1°F, or 0.5°C)  
12  
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™
FocusPRO TH5220D Non-programmable Digital Thermostat  
Installer system test  
Follow the procedure below to test the heating, cooling and fan.  
System test  
number  
System  
status  
1
0
0
Done  
Next  
To begin, press and hold the  
buttons until the display changes  
and  
Press  
Press  
to turn on system  
to turn off system  
Press NEXT to advance to next test  
Press DONE to terminate system test  
System Test  
System Status  
10  
Heating system  
0
1
Heat and fan turn off  
Heat turns on. Fan also turns on immediately if Function 1 is set  
to “1” or “5,” or if Function 3 is set to “1” **See page 11  
Second stage heat turns on  
2
2
0
0
Emergency  
0
1
2
Heat and fan turn off  
heating system  
Heat and fan turn on  
Second stage heat turns on (Aux)  
3
Cooling system  
Fan system  
0
1
2
Compressor and fan turn off  
Compressor and fan turn on  
Second stage compressor turns on  
4
0
0
0
1
Fan turns off  
Fan turns on  
7
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.  
13  
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Installation Guide  
Auto changeover (Setup Function 12)  
Fan  
Auto  
System  
Auto  
Auto Changeover is a feature used in  
climates where both air conditioning and  
heating are used on the same day.When the  
system is set to Auto, the thermostat  
automatically selects heating or cooling  
depending on the indoor temperature.  
Heat and cool settings must be at least 3 degrees apart.The thermostat will automati-  
cally adjust settings to maintain this 3-degree separation (called“deadband”).  
The 3-degree separation between heating and cooling set temperatures is fixed, and  
cannot be changed.  
Built-in compressor protection (Setup Function 15)  
This feature helps prevent damage to the  
compressor in your air conditioning or heat  
pump system.  
Inside  
Cool  
Setting  
°
°
Cool On  
System  
Damage can occur if the compressor is re-  
started too soon after shutdown.This feature  
forces the compressor to wait for a few  
minutes before restarting.  
7
5
75  
Fan  
Auto  
Cool  
During the wait time, the message Cool On  
or Heat On (heat pumps only) 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  
Auxiliary heat control (Setup Function 26)  
Systems with heat pumps can be set to operate in one of two ways:  
Comfort Setting: The thermostat will prioritize comfort over economy  
depending on heat pump performance, load conditions and whether the  
equipment is calling for heat. Raising the temperature just a few degrees  
will often activate auxiliary heat.  
Economy Setting: The thermostat will attempt to reach the temperature set-  
ting without activating auxiliary heat. The thermostat waits a preset time  
before allowing auxiliary heat to be activated depending on the compressor  
stage performance, and on how many degrees the temperature setpoint is  
changed.  
14  
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™
FocusPRO TH5220D Non-programmable Digital Thermostat  
Quick reference to controls  
Digital display screen  
Battery holder (see page 10)  
Temperature buttons  
Press to adjust temperature  
settings  
Function buttons  
Press to select the function displayed just above each button.  
Functions change depending on the task.)  
(
Quick reference to display screen  
Low battery warning  
Auxiliary heat  
Only for heat pumps  
(
with auxiliary heat)  
Temperature setting  
Current inside  
temperature  
Inside  
Replace  
Heat  
Battery  
Setting  
°
°
Auxiliary  
Heat On  
75  
System  
Heat  
7
5
Fan  
Auto  
System status  
Heat On/Cool On  
(If flashing, see page 14)  
Fan setting  
Auto/On  
System setting  
Heat/Cool/Auto/Off/  
Em Heat  
Function buttons  
Press the button beneath each function to view or change  
settings (functions change depending on the task)  
Battery replacement  
Press and pull to remove  
Insert fresh AA  
alkaline batteries,  
then reinstall  
battery holder  
15  
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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  
•
•
•
•
Check circuit breaker and reset if necessary.  
Make sure power switch at heating & cooling system is on.  
Make sure furnace door is closed securely.  
If thermostat is battery powered, make sure fresh AA alkaline batteries  
are correctly installed (see page 10).  
Temperature  
settings do not  
change  
Make sure heating and cooling temperatures are set to acceptable ranges:  
•
•
Heat: 40° to 90°F (4.5° to 32°C).  
Cool: 50° to 99°F (10° to 37°C).  
Check temperature range stop settings (Function 27 & 28 on page 12).  
Heating 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  
heating equipment to find the cause of the problem.  
(“Heat On”  
appears on  
screen)  
Check for 24 Vac between the heat terminal (W) and the transformer  
common. If 24 Vac is present, the thermostat is functional. Check the  
heating equipment to find the cause of the problem.  
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.  
Check for loose or broken wires between the thermostat and the cooling  
equipment.  
Fan does not  
turn on in a call  
for heat  
Check Installer Setup, Function 3 (Fan Control), to make sure the fan  
control is properly set to match the type of system (see page 11).  
Heat pump  
•
Check Installer Setup, Function 2 (Changeover Valve), to make sure it is  
properly configured for your system (see page 11).  
issues cool air  
in heat mode,  
or warm air in  
cool mode  
Heat/cool both  
on at same time,  
or heat does  
not turn off  
•
•
Check Installer Setup, Function 1 (System Type), to make sure it is set to  
match the installed heating/cooling equipment (see page 11).  
Check to make sure heating and cooling wires are not shorted together.  
16  
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™
FocusPRO TH5220D Non-programmable Digital Thermostat  
In case of difficulty  
Heating equip-  
ment is running  
in cool mode  
•
Check Installer Setup, Function 1 (System Type), to make sure it is set to  
match the installed heating/cooling equipment (see page 11).  
Cannot change  
system setting  
to “Heat”  
•
•
Check Installer Setup, Function 1 (System Type), to make sure it is set to  
match the installed heating equipment (see page 11).  
Change Installer Setup, Function 12 (System Setting) to Manual or Auto  
Changeover (see page 12).  
Cannot change  
system setting  
to “Cool”  
•
•
Check Installer Setup, Function 1 (System Type), to make sure it is set to  
match the installed cooling equipment (see page 11).  
Change Installer Setup, Function 12 (System Setting) to Manual or Auto  
Changeover (see page 12).  
“
Heat On” is  
•
•
•
Change the System Setting to Heat, and set the temperature level above  
the current room temperature.  
not displayed  
“Cool On” is not  
Change the System Setting to Cool, and set the temperature level below  
the current room temperature.  
displayed  
“
“
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  
Accessories & replacement parts  
Please contact your distributor to order replacement parts.  
Battery holder ......................................................Part Number 50007072-001  
Cover plate assembly ........................................Part Number 50002883-001  
(Use to cover marks left by old thermostats.)  
Specifications  
Temperature Ranges  
Electrical Ratings  
•
•
Heat: 40° to 90°F (4.5° to 32°C)  
Cool: 50° to 99°F (10° to 37°C)  
Terminal  
Voltage (50/60Hz) Running Current  
W (O/B) Heating  
(Powerpile)  
20-30 Vac  
750 mV DC  
20-30 Vac  
20-30 Vac  
20-30 Vac  
20-30 Vac  
20-30 Vac  
20-30 Vac  
0.02-1.0 A  
100 mA DC  
0.02-0.5 A  
0.02-1.0 A  
0.02-1.0 A  
0.02-0.5 A  
0.02-1.0 A  
0.02-0.5 A  
Operating Ambient Temperature  
32° to 120°F (0° to 48.9°C)  
•
W2 (Aux) Heating  
Y Cooling  
Shipping Temperature  
-20° to 120°F (-28.9° to 48.9°C)  
•
Y2 Cooling  
Operating Relative Humidity  
5% to 90% (non-condensing)  
•
G Fan  
Physical Dimensions  
E Emergency heat  
L Heat pump reset  
•
•
3-9/16” H x 5-13/16” W x 1-1/2” D  
91 mm H x 147 mm W x 38 mm D  
17  
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Automation and Control Solutions  
Honeywell International Inc.  
985 Douglas Drive North  
Honeywell Limited-Honeywell Limitée  
1
35 Dynamic Drive  
Golden Valley, MN 55422  
Scarborough, Ontario M1V 4Z9  
www.honeywell.com/yourhome  
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.  
9-1783 02-2005  
6

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