1. Commercial VisionPRO™ 8000

2. VisionPRO 8000 Features
Commercial VisionPRO 8000 incorporates all the standard features of the VisionPRO family:
Sleek design
Menu-driven programming
Large touchscreen display
But the Commercial VisionPRO 8000 goes even farther and is tailored with features specifically for commercial applications
OS Number
Applications
TB8220U1003
2H/2C Conventional
3H/2C Heat Pump

3. Commercial VisionPRO 8000
The Commercial VisionPRO 8000 offers these distinguishable commercial features:
Enhanced energy savings
Economizer output
Holiday setback
Commercialized control algorithm
Better and more consistent control in commercial applications
Multiple keypad lockout levels
Configurable recovery ramps
Occupied/unoccupied scheduling
Title 24 energy/air quality compliance

4. TB 8 22 0 U 1 003 Nomenclature Power Line Designation
U = Universal (dual powered, system flexibility,
scheduling flexibility)
Line Designation
TB = Buildings Thermostat
TH = Homes Thermostat
Specification Details
TB U 1 003
Family Designation
8 = VisionPRO touchscreen
7 = VisionPRO conventional
System Stages
22 = 2 Heat / 2 Cool
Application
0 = Standard

5. Installation Procedures
Commercial VisionPRO 8000
Installation Procedures

6. Installation Steps to install Commercial VisionPRO 8000 Mounting
Wiring
Powering Thermostat
Set Calendar
Installer Setup Menus
Main Settings Menu
Regional Settings Menu
Advanced Settings Menu
System Test(s)
In this sections we’ll discuss the installation of the thermostat. The basic sections include:
Mounting
Wiring
Powering the thermostat
Setting the calendar
Reviewing the three Installer Setup Menus
System Test(s)

7. Installation - Wallplate Mount
Mounts directly on wall
4” x 2” electrical box
Coverplate available
The TH8000’s Series Thermostat wallplate’s mount directly to any standard 2in. x 4in. junction box either horizontally or vertically with no adapter's required.

8. Application Wiring Choose Conventional or Heat Pump terminal labels
Insert wires in terminal block
Jumper—factory installed
There is only one set of termination screws but there are two separate wiring labels for each, one for Heat Pump systems and another one for conventional (non-heat pump) systems.
Wiring terminations are made by simply terminating the
Loosen the screw, insert the wire and tighten screw.
Please note the factory installed jumper wire between the R and Rc. Note if your application requires the jumper to be left in place or if it needs to be removed.

9. Wiring 1 Heat/1Cool Conventional
Typical diagram for a 1 Heat/1 Cool single transformer system.
Note the use of the Conventional wiring block labels.
Factory Installed Jumper between R and Rc remains in place in a single transformer system.
Optional connections include:
The 24Vac common connection
Indoor or outdoor temperature sensor
1 = Power Supply
2 = Factory Installed Jumper
3 = Optional Sensor
1 Heat/1 Cool single transformer.

10. Wiring 2 Heat/2 Cool Conventional
Typical diagram for a 2 Heat/2 Cool single transformer system.
Note the use of the Conventional wiring block labels.
Factory Installed Jumper between R and Rc remains in place in a single transformer system.
Optional connections include:
The 24Vac common connection
Indoor or outdoor temperature sensor
1 = Power Supply
2 = Factory Installed Jumper
3 = Optional Sensor
2 Heat/2 Cool single transformer.

11. Wiring 1 Heat/1 Cool Heat Pump
Typical diagram for 1 Heat/1 Cool heat pump with NO auxiliary heat.
Note the use of the Heat Pump wiring block labels.
Factory Installed Jumper between R and Rc remains in place in a single transformer system.
Choose to select either O or B in the Installer Setup. Default is the O terminal.
Optional connections include:
The 24Vac common connection
Indoor or outdoor temperature sensor
1 = Power Supply
2 = Factory Installed Jumper
3 = Set to O or B in Setup
4 = Optional Sensor
1 Heat/1 Cool Heat Pump with NO Auxiliary Heat.

12. Wiring 2 Heat/1 Cool Heat Pump
Typical diagram for 2 Heat/1 Cool heat pump with auxiliary heat.
Note the use of the Heat Pump wiring block labels.
Factory Installed Jumper between R and Rc remains in place in a single transformer system.
Choose to select either O or B in the Installer Setup. Default is the O terminal.
Optional connections include:
The 24Vac common connection
Indoor or outdoor temperature sensor
TOD/ECON
1 = Power Supply
2 = Factory Installed Jumper
3, 4 = Optional Sensor
5 = Must Wire Common
6 = Set to O or B in Setup
2 Heat/1 Cool Heat Pump with Auxiliary Heat.

13. Powering Thermostat Hardwired Batteries (included)or
Batteries (included)
3 AAA Alkaline batteries
The thermostat is Dual Powered. Which means the thermostat can be powered by hooking up a 24Vac common connection from the system transformer to the C terminal on the thermostat or with 3 AAA alkaline batteries.
24Vac Common Connection Required for:
To use the LED function of the L terminal in Heat Pump Systems
Continuous Backlighting
Two Transformers
If two transformers are used, the 24Vac common connection must come from the cooling transformer.
Factory installed Jumper between R and Rc must be removed!
If you hook up the 24Vac common and install the AAA alkaline batteries, the batteries will be used as a backup.
The program is maintained permanently in the thermostat’s memory.

14. Mounting Thermostat on Wallplate
Locks straight into position
Line up pins with the terminals
Push thermostat straight onto the wallplate until it snaps into place
Mount thermostat straight onto the wallplate. Pins go straight into terminal blocks. Grab with thumb on the bottom of the thermostat with the four fingers on the top of the thermostat.

15. Activate Real Time Clock
To activate the Real Time Clock, simply pull on Tab to remove during installation
The Real Time Clock is powered using a non-replaceable lithium battery. Remove the battery tab to activate the Real Time Clock.

16. Set Calendar Real Time Clock – Set Calendar Set Year Set Month Set Day
Once the Calendar is set, the thermostat will keep this information during power outages. The Calendar information is stored for approximately 10 years under normal use by a lithium battery.
If the thermostat is powered with the AAA alkaline, the calendar settings will be kept by the alkaline batteries after the lithium battery has died.
The lithium battery in NOT replaceable.

17. Can turn Daylight Savings Time feature off in Installer Setup
Set Time
Real Time Clock – Set Time
Adjusts automatically for daylight savings time
Maintains time and day during power outage
Press Done
Time
Set the current time.
Time adjusts automatically for daylight savings time
The Daylight Savings Time Feature can be turned off in the Installer setup.
Time is kept during power outages
Can turn Daylight Savings Time feature off in Installer Setup

18. Initiate Installer Setup
1. Press the SYSTEM key
2. PRESS and HOLD the two unmarked keys as shown until the display changes
Approximately 5 seconds
Two step process to enter the Installer Setup
1. Press the SYSTEM key
2. Press and Hold the Two unmarked keys located on either side of the center button along the bottom of the thermostat. Hold these keys down for approximately 5 seconds, until the screen changes.
The Installer Setup menus allow the contractor to customize the thermostat for each application and preference.

19. Installer Setup Display
Number
Setup Number on Left
4-digit number starting with 0
Use the up arrow to advance to the next installer setup option
Current Setting on Right
2-digit number
Use the up and down arrows to change the current setting
Exit Installer Setup
Press the Done Key
This is the first screen in the Installer Setup Menu.
The four digit number on the left is the Setup Number. The Up and Down arrows to the right of this number move you forward or backward through the installer setup numbers.
The two digit number on the right is the current setting number. The Up and Down arrows to the right of this number allow you to change the current selection.
The Done key saves the settings and takes you out of the Installer Setup and back to the Home Screen.
Commercial
Current
Setting

20. Easy-to-Use Installer Setup Menus
1. Installer Setup is broken into 3 menus
Main Settings menu—numbers 0120 to 0290
Must Select the System Type
Regional Settings menu—numbers 0300 to 0499
Advanced Settings menu—numbers 0500 to 0710
2. Smart Installer Setup
Setup numbers automatically change defaults based on previous choices
Setup number choices appear and disappear based on previous choices
The Installer Setup is broken into 3 menus.
Main Settings
Regional Settings
Advanced Settings
Most installations will require only the Main Setting Menu. The Main Settings Menu is REQUIRED if the thermostat is being installed on something other than a conventional 1 Heat/1 Cool System.
The Installer Setup is SMART is that it will change future defaults as well as skip or add Installer Setup numbers based on the previous choices selected. This is in a effort to keep the Installer Setup process as Easy as possible.

21. Main Menu Installer Setup Menu Items
Setting the Calendar
Year, Month, Date
Schedule Options
7 day
Non-Programmable
System Type
12 choices
Fan Operation
O/B terminal
Continuous backlight
Cycles per hour
Compressor
Heat (Emergency Heat)
Recovery rates
Heat (1-20°F/hour)
Cool (1-20°F/hour)
Additional Menus
Go to Self Test
Go to Regional Menu
Go to both Regional and Advanced Menus
The Calendar can be set using Installer Setup Numbers 0120, 0130, 0140 and 0150.
The Schedule Options are number 0160.
The System Type selection is number 0170.
If a Heat Pump system is selected, the Fan Operation number 0180 will default to electric.
If a Heat Pump system is selected, the O/B terminal number 0190 will be shown for you to select O or B. If a conventional system is shown, this selection is not shown.
Setup Numbers 0200 and 0210 are additional Heat Pump Options.
Setup Number 0220 through 0270 are the Cycles Per Hour choices for the various number of stages available depending on your system selection choice.
Continuous Backlight option is available to turn on if a 24Vac common is connected.
Installer Setup Number Decide to view more options or go to the system test.
Exit the Installer Setup at any time by pressing the Done key.

22. Main Setting Menu Items
Universal Application
Up to 2 Heat/2 Cool (plus Aux Heat)
Forced Warm Air
Single stage
Multistage
Heat Pumps
The 3 Heat/2 Cool model is virtually compatible with any 24Vac system.
Installer Setup Number 0170 select the system type the thermostat is installed on:
1--1 Heat/1 Cool conventional system
2--1 Heat/1 Cool Heat Pump no auxiliary heat
3--Heat Only, No Fan.
4--Heat Only with Fan.
5--Series 20 3 wire Hot Water Valve. Powered opened and powered closed.
6--Cool Only
7--2 Heat/1 Cool Heat Pump with Auxiliary Heat
8--2 Heat/2 Cool Conventional System
9--2 Heat/1 Cool Conventional System
10--1 Heat/2 Cool Conventional System
11--2 Heat/2 Cool Heat Pump with NO auxiliary Heat
12--3 Heat/2 Cool Heat Pump with Auxiliary Heat
Commercial

23. Main Setting Menu Items
Universal Scheduling
Multiple Programming Options
7 Day
5-1-1
5-2
1 Day
Non-programmable
Select Schedule Periods
OCC1, UNOCC1, OCC2, UNOCC2
OCC1, UNOCC2
Installer Setup Number 0160 allow you to choose 7 Day Programmable or Non-programmable.
The 7 Day Programmable option allows the user to Pick Multiple Days which basically means the thermostat can be 5-1-1, 5-2, 4-3, 1 Day--will match any life style.
Commercial

24. Main Setting Menu Items
Backlighting
On-Demand
Whenever a key is pressed, the light will stay on for approximately 8 seconds
Continuously
Must be hardwired with a common and installer setup set to continuous
Installer Setup Number 0280 allows you to choose Continuous backlighting.
The 24Vac common must be connected to get continuous back-lighting.
Commercial

25. Regional Settings Menu Item
Auto or Manual Changeover
Deadband
Fahrenheit or Celsius
Daylight Savings
Remote Temperature Sensor
Outdoor or Indoor Remote
Compressor Lockout (Heat Pump Only)
Auxiliary Lockout (Heat Pump Only)
The REGIONAL SETTINGS Menu.
0300 is the Auto or Manual Changeover selection.
0310 is the deadband and is shown only if Auto Changeover is selected.
0320 is a choice between Fahrenheit or Celsius
0330 is the Daylight Savings selection. The Default is set to ON and can be turned off here.
0340 is the Outdoor or Indoor Remote Temperature Selection.
0350 is the compressor lockout option for Heat Pump Systems or the Balance Point Temperature in Dual Fuel Heat Pump Systems.
0360 is the Auxiliary Lockout option for Heat Pump Systems.
0380 is the indoor dehumidification Control (available on select models)

26. Regional Settings Menu Item
Changeover
Auto Changeover
Default position
Manual Changeover
Set in Regional Installer Setup menu
Default is Manual Changeover. Option is Auto Changeover.
Commercial

27. Regional Settings Menu Item
Outdoor Temperature Sensor
C7089U
2-wire remote sensor
Hook up to the S1 and S2 terminals at the thermostat
200 feet maximum
View outside temperature on home screen or by pressing the More key
Used for Heat Pump System Temperature Lockouts
Keys to Outdoor Temperature Sensor:
Allows the user to view the outside temperature.
Temperature is used in the calculations for Compressor and Auxiliary Heat Lockouts or the Balance Point Temperature in Heat Pump Systems.
The Outdoor Temperature Sensor is a 2 wire sensor. The wires are hooked up to the S1 and S2 terminals at the thermostat. A separate 2 wire cable is required.
Thermostat has be used with a Outdoor Temperature Sensor OR the Indoor Remote Temperature Sensor(s), not both.

28. Regional Settings Menu Item
Remote Indoor Temperature Sensor
T7770A (20K NTC) or C7189U (10K NTC)
2-wire remote sensor
Selectable via ISU 340
Sensors can be used as follows:
One sensor
Multiple sensors
Keys to Remote Sensor:
Installation anywhere the homeowner wants to sense room temperature using only 2 wires connected from the thermostat location. Hook up to the S1 and S2 terminals at the thermostat.
Used in replace of the thermostat to sense temperature.
May use one sensor or a series/parallel network of sensors. In a network the temperature is averaged between the remote sensors.
Same mounting and wiring guidelines as any thermostat.
Shielded cable may be required in applications where static or other electrical interference is a problem.
Remote sensor measures temperature only. Humidity level is measured by a specific TH8321 thermostat.
Thermostat has be used with a Outdoor Temperature Sensor OR the Indoor Remote Temperature Sensor(s), not both.
Benefits:
Comfort
Security

29. Installation Series-Parallel Temperature Averaging Networks Thermostat
Example of sensor series/parallel temperature averaging network as shown in C7189 Installation Instructions.
Keys to Remote Sensor Networks
1. C7189 sensors must be arranged as shown in order to meet the electrical requirements of the TH8000 Series Thermostat. Otherwise, comfort problems will exist (i.e.. heat or cool locking).
2. Other remote sensors used in competitive or other Honeywell products (i.e.. W180, T7300, PC8900) are not compatible.

30. Advanced Settings Menu Items
Number of Periods
Compressor Off Time
Temperature Range Stops
Heat and Cool
12 or 24 hour clock
Extended Fan Operation
Keypad Lockout
Partial 1, Partial 2, or full
Temperature Control(s)
Heat and cool recovery
Display Offset
Reset Defaults
Installer setup and schedule
These are the Options available in the ADVANCED Settings Menu.
0500 to 0520 are the Indoor Air Quality Reminders.
0530 is the Adaptive Intelligent Recovery option. This comes defaulted to ON.
0540 allows you to choose the number of schedule periods available for all days. A choice of 4 allows WAKE, LEAVE, RETURN and SLEEP. A choice of 2 allows WAKE and SLEEP.
0580 is the compressor off delay. This is defaulted to 5 minutes.
0600 and 0610 are the temperature range stops which limit how high the heating can be set and how low the cooling can be set.
0640 is the 12 or 24 hour clock option.
0650 and 0660 are the extended fan operation is heating or cooling.
0670 is the Keypad Lockout option.
0680 and 0690 allow for more or less aggressive recovery.
0700 is the Temperature Display Offset
0710 is an option to RESET all the Default Installer Setup Options and Reset the program Schedule Defaults.

31. Advanced Settings Recovery Ramps
Recovery scheme ramps the setpoint towards the desired setpoint
Ramped setpoint helps eliminate overshoot with oversized commercial equipment
The thermostat micro processor simultaneously gathers, compares, and computes data. Using this data, it controls a wide variety of functions including Proportional + Integral Control. This special proprietary program eliminates the factors causing a droop in the control point.
Adaptive Intelligent Recovery
Set your program schedule to the time you want the house to be at the comfort temperature. The temperature then turns on the heating or cooling at just the right time to have the home reach the scheduled temperature at the scheduled time.
The thermostat alerts you that the heating or cooling system is coming on before a scheduled time by showing “Recovery” on the screen.

32. Commercial VisionPRO 8000
Recovery Operation

33. Conventional Recovery
Heating
70oF
Actual
Temperature
Set Point
Temperature
60oF
UNOCC
OCC

34. Commercial Recovery Ramps
Heating
Actual
Temperature
70oF
Set Point
Temperature
Setpoint actually ramps up at a user-defined rate during recovery
60oF
OCC
UNOCC

35. Conventional Recovery
Cooling
85oF
Set Point
Temperature
Actual
Temperature
78oF
UNOCC
OCC

36. Commercial Recovery Ramps
Cooling
85oF
Set Point
Temperature
Actual
Temperature
78oF
UNOCC
OCC

37. Advanced Settings Menu Items
Recovery
Advanced Settings Menu Items
“Recovery” is shown to alert occupant that the system is in recovery mode
Note: The setpoint displayed during recovery is the final setpoint, not the ramping setpoint
Commercial
Adaptive Intelligent Recovery
Set your program schedule to the time you want the house to be at the comfort temperature. The temperature then turns on the heating or cooling at just the right time to have the home reach the scheduled temperature at the scheduled time.
The thermostat alerts you that the heating or cooling system is coming on before a scheduled time by showing “Recovery” on the screen.

38. Advanced Settings Menu Items
Installation
Advanced Settings Menu Items
Extended Fan Operation
Heat
Fan runs 90 seconds after call for heat ends
Available if thermostat has control of fan
Cool
Fan runs 40 seconds after call for cool ends
Extended Heat Fan Operation
Available if the thermostat has control of the fan (ISU #0180 must be set to 1)
The Fan runs for an additional 90 seconds after the call for heat ends.
Extended Cool Fan Operation
The Fan runs for an additional 90 seconds after the call for cool ends.
Commercial

39. Part of Installer Setup.
Installation
Installer System Test
Test HVAC equipment
Cool stages
Fan
Heat stages
Overrides compressor delay
Installer System Test
Used to test the HVAC system(s). While in the System Test mode, the minimum off-time for compressors is bypassed.
Commercial
Part of Installer Setup.

40. Installer System Tests
Installation
Installer System Tests
Test 1
Turn cool stage(s) on and off
Test 2
Turn fan on and off
Test 3
Turn heat stage(s) on and off
Test 4
Turn emergency heat on and off (heat pump only)
Test 8
Turn TOD/Econ on and off
Commercial
Test 1
0--cool OFF
1--cool stage 1 turns ON
2--cool stage 1 and 2 turns ON
Test 2
0--Fan is OFF
1--Fan is ON
Test 3
0--heat is OFF
1--heat stage 1 ON
2--heat stage 1 and 2 turns ON
3--heat stages 1, 2 and 3 (aux,) turns ON
Test 4 (Heat Pumps Only)
0--Emergency Heat is OFF
1--Emergency Heat is ON
Press
Done
to Exit
Arrows Move
To Next Test
Arrows Turn
System On
or Off

41. Scheduling Procedures
Commercial VisionPRO 8000
Scheduling Procedures

42. Scheduling Feature Review
Default Schedule is Energy Star
Menu Driven Program Scheduling
Each day can be scheduled differently
Ability to Select Multiple Days
Armchair Programming

43. Scheduling
Set the Schedule
Press the Schedule Key
Commercial

44. View Schedule View Schedule
The current schedule period will flash to indicate which period is being viewed
Press the Day and Period you wish to view
Press Cancel or Done to return to Home Screen
Commercial

45. Edit Schedule Edit the Schedule Press the EDIT key View mode
Commercial

46. Schedule Day Selection
Pick Days to Schedule
Press any number of the seven days of the week to edit
Commercial

47. Schedule Day Display OK to Pick Multiple Days
Check marks appear on the days chosen
Commercial

48. Schedule OCC1 Selection
Press OCC1 Key
OCC1 will begin to flash, indicating it is chosen
Commercial

49. Scheduling
Set OCC1 Time
Use arrows to set the OCC1 time
Commercial

50. Set Temperature Use arrows to set the heat temperature
Use arrows to set the cool temperature
Commercial
Deadband of 3 degrees.

51. Scheduling Press UNOCC1 Key
UNOCC1 will begin to flash indicating it is chosen
Set Time
Set Temperatures
Press OCC2 and UNOCC2 and Repeat
Commercial

52. Scheduling Press Done Key
When finished setting the times and temperatures for the Days Selected, press Done
Commercial

53. Saving Schedule Changes
Saving Changes
The Days scheduled are shown
Display shows Confirmation that the schedule changes were made
Commercial

54. Cancel Schedule Period
To Cancel a Scheduled Period
From the edit screen, choose the period to cancel
Press the key CANCEL PERIOD
Commercial
Example: Cancel UNOCC1

55. Cancel Schedule Period
Once the Scheduled Period is Canceled
Time & Temperatures disappear
The bar above the UNOCC1 period is removed
Commercial
Reinstate schedule period by pressing arrow keys to set time and temperature.

56. Scheduling Fan Schedule Press Fan key while in the Edit mode
Auto (default—fan runs with system
On—fan runs continuously during the schedule period
Commercial

57. Override Fan Schedule Fan Schedule Override Fan Schedule
Press the fan key to the desired setting
Like a mechanical fan switch. The fan will stay in ON until user manually changes fan setting back to Auto
Commercial

58. Following Schedule Display
Home Screen gives confirmation that schedule is being used
Commercial

59. Schedule Overrides Schedule Overrides 1. Holiday 2. Override
Holds temperature for a designated number of days
2. Override
Holds temperature until the time the user sets (can be limited via ISU 535)
Commercial

60. Scheduling
Override
Holds temperature temporarily until the next scheduled period time
Press Override key or Up and Down Arrows next to temperature
Next schedule period time is shown—this is when the temporary hold will end
Adjust end time by pressing Up or Down Arrows next to the time
Commercial

61. Press Cancel or Sched key to cancel Holiday early
Scheduling
Holiday
Hold temperature for a designated number of days
Press Up and Down Arrows to set the temperature desired while away
Press Arrows to set the number of Days
Commercial
Press Cancel or Sched key to cancel Holiday early

62. Commercial VisionPRO 8000
Operation

63. Operation Feature Review Precise Temperature Control System Status
View Outside Temperature
Clean Screen
Low Battery
Screen Locked
Temperature Range Stops
Compressor Protection

64. Operation The human body can sense a 2º F temperature change
To keep occupants comfortable, the thermostat must keep the temperature within +/- 1º F of the set-point
Set
Point
72O F
71O F
70O F
69O F
68O F
Comfortable Temperature Control
Once the temperature deviates from the set-point by +/- 1 degrees Fahrenheit, people will start to notice.

65. Operation Thermostat qualities that lead to comfortable temperature
control
Top quality components
Innovative design
Superior control algorithms (Digital Thermostats)
Controlling to an ideal Cycle Rate using Proportional + Integral Control
Top Quality Components
- Relays are better than Triacs
- Gold or Silver Contacts-Do not corrode or oxidize. Corrosion and oxidation leads to internal heat.
- Use components with no or limited self heat.
Innovative Design
- Slots in thermostat to allow for air flow.
- Should be able to see through thermostat (good indication airflow will pass through thermostat).
- Chimneys/Channels to allow air to flow through the thermostat
- Locate thermistor:
- away from heat sources
- close to the edge of the thermostat for proper air flow
Superior Control Algorithms
- P + I control-Eliminates the factors that cause droop in the control point.
- Honeywell has significant experience with P+I control and its implementation in thermostats. This experience provides the best control for a variety of weather, climate, and home conditions.

66. Operation Proportional + Integral Control
Proportional Error (P): The difference between the set-point temperature and the room temperature
Integral Error (I): The length of time the room temperature has differed from the set-point temperature

67. A Operation 70° 68° A = Proportional Error
Proportional Error: The difference between the room
temperature and the setpoint temperature
Setpoint
Temperature
Room A
A = Proportional Error
70°
68°
P+I Control is often called “droopless” control.
Proportional error is the same input used to control electro-mechanical thermostats like the T87. When the room temperature falls below the setpoint, a call for heat or cool occurs.

68. B C D Operation 70° 70° 68° B + C + D = Integral Error
Integral Error: The length of time the room temperature
has differed from the setpoint temperature
Setpoint
Temperature
70°
70°
Room
Temperature
68° B C D
Difference between Proportional only control and P+I Control is:
Proportional only looks at the amount of deviation from setpoint
P+I looks at the amount of deviation and the length of time the temperature has been away from setpoint
The longer the time away, the greater the integral error factor will be which
will result in a more severe effort to control/resolve the temperature
difference. This results in longer equipment on times in high load conditions.
Worth Repeating
“Most controls today utilize P+I control. However, Honeywell’s proprietary algorithm controls and experience with P+I control and its implementation in thermostats. This experience provides the best control for a variety of weather, climate, and home conditions.”
B + C + D = Integral Error

69. A B C D Operation 68° 70° 70° B + C + D = Integral Error
P+I Control: The P+I error is the sum of the two errors.
The cycle rate used to maintain the set-point temperature
is calculated using the P+I Error
68°
Setpoint
Temperature
Room A
70°
Setpoint
Temperature
70°
Room
Temperature B C D
Difference between Proportional only control and P+I Control is:
Proportional only looks at the amount of deviation from setpoint
P+I looks at the amount of deviation and the length of time the temperature has been away from setpoint
The longer the time away, the greater the integral error factor will be which
will result in a more severe effort to control/resolve the temperature
difference. This results in longer equipment on times in high load conditions.
It is critical to have both proportional + integral control. This gives you accurate temperature control through a variety of load conditions.
B + C + D = Integral Error

70. Operation System Status Indication Cool On Heat On Aux
Thermostat calling for Cool
Heat On
Thermostat calling for Heat
Aux shown when auxiliary heat is called in Heat Pump Systems
Cool On
When the thermostat’s System mode is in the Cool position and the thermostat is calling for the compressor, the screen will show “Cool On” to indicate to the homeowner that the thermostat is calling for cooling.
Heat On
When the thermostat is calling for heat, the “Heat On” segment shows in the screen.
Auxiliary Heat On
When the thermostat calls for the auxiliary heat to operate, the “Aux” symbol will appear in the screen.
The thermostat will call for the Auxiliary heat approximately 1.5 to 2.50F below the heat setting.
Aux

71. Operation View Outside Temperature
Outside Temperature is shown in lower right hand corner of Home screen
Commercial
The thermostat has the ability to show the outside temperature if the optional C7089U outdoor sensor is installed.
If the thermostat is in the Heat, Off, Cool or Emergency Heat mode the Outside temperature will show on the Home Screen.
If the thermostat is in the AUTO changeover mode, the MORE key should be pressed to view the Outside Temperature.

72. Operation View Outside Temperature Press More key
If thermostat is set to auto changeover, press the More key to view the outside temperature
Press Done or Cancel to return to Home screen
The thermostat has the ability to show the outside temperature if the optional C7089U outdoor sensor is installed.
If the thermostat is in the Heat, Off, Cool or Emergency Heat mode the Outside temperature will show on the Home Screen.
If the thermostat is in the AUTO changeover mode, the MORE key should be pressed to view the Outside Temperature.
Commercial

73. Operation Clean Screen Press Screen key Activates a 30-second timer
Locks out the Touch screen function
Commercial
This thermostat has touchscreen interaction. Occasionally oil’s from the user’s fingers may show fingerprints on the screen. These can be cleaned!
Press the SCREEN key. The thermostat Locks out all touch keys (makes them inactive) for 30 seconds.
The user should use a damp cloth slightly moistened with water or a household glass cleaner to clean the Screen.
NEVER, SPRAY ANY TYPE OF LIQUID DIRECTLY ON THE THERMOSTAT!

74. Never spray liquid directly on the thermostat
Operation
Clean Screen
OK To Clean Screen
During 30-second countdown, the screen can be cleaned
Use damp cloth slightly moistened with water or household glass cleaner
This thermostat has touchscreen interaction. Occasionally oil’s from the user’s fingers may show fingerprints on the screen. These can be cleaned!
Press the SCREEN key. The thermostat Locks out all touch keys (makes them inactive) for 30 seconds.
The user should use a damp cloth slightly moistened with water or a household glass cleaner to clean the Screen.
NEVER, SPRAY ANY TYPE OF LIQUID DIRECTLY ON THE THERMOSTAT!
Commercial
Never spray liquid directly on the thermostat

75. Operation Clean Screen Press Screen to restart the 30-second timer
Press Done to return to the Home screen
This thermostat has touchscreen interaction. Occasionally oil’s from the user’s fingers may show fingerprints on the screen. These can be cleaned!
Press the SCREEN key. The thermostat Locks out all touch keys (makes them inactive) for 30 seconds.
The user should use a damp cloth slightly moistened with water or a household glass cleaner to clean the Screen.
Pressing SCREEN key a second time will start the 30 second timer over again. Pressing the DONE key will return the thermostat to the Home Screen.
NEVER, SPRAY ANY TYPE OF LIQUID DIRECTLY ON THE THERMOSTAT!
Commercial

76. Recommended: Replace batteries once a year.
Operation
Low Battery Indication
Flashes on Home screen for approximately 30 days
Batteries are optional if a 24Vac common is used
If the AAA alkaline batteries are used to power the thermostat a LO bAtt warning will appear in the screen approximately 30 days. The thermostat will flash between the Home Screen to the LO bAtt screen.
If the batteries are not replaced during the flashing low battery warning, the LO bAtt screen will display continuously and the thermostat will not operate the HVAC equipment until the batteries are replaced.
If the AAA alkaline batteries are used as back-up to the 24Vac common connection, they should still be replaced once a year to prevent any possible battery corrosion or oxidation.
Recommendation
Honeywell recommends the alkaline batteries be replaced once a year.
Recommended: Replace batteries once a year.

77. Operation Screen Locked Keypad Lockouts Partial Lockout 1
Only Override, Holiday and Temperature Up and Down Arrows are available
Partial Lockout 2
Only Override and Holiday buttons are available
Fully Locked
All keys are locked and non-functional
Keypad Lockout options are chosen in the Advanced Setting Menu of the Installer Setup.
If the thermostat shows “Screen Locked” in the display you thermostat screen is either fully or partially locked.
Partially Locked Screen
In this mode, all keys are locked except the Temperature Up and Down arrow keys. The user can change the temperature up or down but cannot change the schedule settings.
Display Shows “Screen Locked” in Partial Lockout
When partially locked, the screen indicates “Screen Locked” for 5 to 7 seconds whenever the user attempts to press a key that is locked. Pressing a locked key while “Screen Locked” is shown flashes the “Screen Locked” segment. Pressing an unlocked key while “Screen Locked” is active removes the “Screen Locked” segment from the display.
Fully Locked Screen
In this mode, all keys are locked and not functional. You are allowed to enter the Installer Setup mode to unlock the screen but cannot change any of the Installer setup option except the Keypad Lockout option.
Display Shows “Screen Locked” in Full Lockout
When fully locked the screen indicates “Screen Locked” permanently on the screen.
Commercial

78. Operation Temperature Range Stops Heat Setting Cool Setting
Set the highest Heat temperature the user can set
Cool Setting
Set the lowest Cool temperature the user can set
Commercial
In the Installer Setup’s Advanced Settings Menu are the options to limited the highest Heat setting and Lowest Cool setting the user can set.
0600 is the Heat Temperature Range Stop. The Highest heat setting is 900F. This can be adjusted from 40 to 890F.
0610 is the Cool Temperature Range Stop. The Lowest Cool setting is 500F. This can be adjusted from 51 to 990F.

79. Operation Compressor Protection
“Wait” shows in the screen for compressor delay
Compressor Protection
The thermostat is designed with a 5 minute compressor delay if the compressor. This prevents the thermostat from calling for the air conditioner if the air conditioner had just shut off. This is adjustable to 4, 3, 2 minutes or to 0 minutes to turn the delay timer off.
If the system has a timer, the system timer and the thermostat timer would count down together. For example, if the system’s timer was set to 5 minutes and the thermostat’s delay timer was set to 5 minutes, the total delay would be 5 minutes.

80. Operation Heat Pump Operation System Indication LED Compressor Lockout
Auxiliary Heat Lockout
These are specific feature Operations that pertain to the thermostat when they are setup to operate 2 Heat/1 Cool or 3Heat/2 Cool Heat Pump Systems.

81. Operation System LED LED Indication Requires 24 Vac Common connection
Operates off the “L” terminal
Only visible through the thermostat cover when lit
Commercial
An LED indicator is located in the upper right corner of the thermostat. It is only Visible when the LED is ON.
For the LED to function, the 24Vac common must be connected.

82. Operation System LED L Terminal Input
L terminal is wired to an equipment monitor
LED lights to signal a check or fail signal from the system
May occur in any system mode
An LED indicator is located in the upper right corner of the thermostat. It is only Visible when the LED is ON.
For the LED to function, the 24Vac common must be connected.
When the L terminal can be wired to an equipment monitor as shown in the wiring diagram. If the equipment monitor closes, the LED will come ON. This indicates to the homeowner that they should contact their heating and cooling contractor for service.
Note: In the Emergency Heat mode, the LED will be continuously lit to indicate the thermostat is in the Emergency heat mode. In this case, if the equipment monitor switch closed while the thermostat was in the Emergency Heat mode, there would be no additional indication.

83. Operation Compressor Lockout Electric Auxiliary heat
Must set outdoor temperature sensor for control
Choose compressor lockout temperature in installer setup number 0350
No lockout
15, 20, 25, 30, 35, 40 or 450 F
COMPRESSOR ONLY
Fan does energize 35
Compressor
Lockout
Temperature
OUTDOOR TEMPERATURE
AUXILIARY HEAT ONLY
Fan does energize
Compressor Lockout is available for 2 Heat/1 Cool or 3 Heat/2 Cool Heat Pumps. The following 3 items must be true and set in the Installer Setup:
1. The auxiliary backup heat must be Electric Back-up Heat. (ISU # 0200)
2. The Outdoor Temperature Sensor for the the Control option in ISU # 0340.
3. Choose a Compressor Lockout Temperature in ISU # 0350.
Operation in the Heat Mode
When the outdoor temperature is below the Compressor Lockout Temperature, only the Auxiliary Heat will operate. In this example, with a 350F Compressor lockout temperature the compressor will operate above 35 and the auxiliary heat will operate below 35.
Operation in the Emergency Heat Mode
Once the thermostat is placed in the Emergency Heat mode, the compressor and auxiliary lockout features are turned off. In the Emergency heat mode, the compressor is locked out. The first stage of heat is whatever is connected to the E terminal. The second stage of heat is connected to the Aux. terminal. Usually the emergency and auxiliary heat sources are electric strip heat in these cases.
Note: If you have an external fossil fuel kit controlling the equipment equipment you should turn the Auxiliary Heat Lockout option OFF to allow the external fossil fuel kit to function properly.

84. Operation Auxiliary Heat Lockout Electric Auxiliary heat
Must set outdoor temperature sensor for control
Choose auxiliary lockout temperature in installer setup number 0360
No lockout
40, 45, 50, 55 or 60 0F
COMPRESSOR ONLY
Fan does energize 50
Auxiliary Heat
Lockout
Temperature
OUTDOOR TEMPERATURE
AUXILIARY HEAT ONLY
Fan does energize
Auxiliary Heat Lockout is available for 2 Heat/1 Cool or 3 Heat/2 Cool Heat Pumps. The following 3 items must be true and set in the Installer Setup:
1. The auxiliary backup heat must be Electric Back-up Heat. (ISU # 0200)
2. The Outdoor Temperature Sensor for the Control option in ISU # 0340.
3. Choose an Auxiliary Heat Lockout Temperature in ISU # 0360.
Operation in the Heat Mode
When the outdoor temperature is below the Compressor Lockout Temperature, only the Auxiliary Heat will operate. In this example, with a 500F Auxiliary lockout temperature the compressor will operate above 50 and the auxiliary heat will operate below 50.
Operation in the Emergency Heat Mode
Once the thermostat is placed in the Emergency Heat mode, the compressor and auxiliary lockout features are turned off. In the Emergency heat mode, the compressor is locked out. The first stage of heat is whatever is connected to the E terminal. The second stage of heat is connected to the Aux. terminal. Usually the emergency and auxiliary heat sources are electric strip heat in these cases.
Note: If you have an external fossil fuel kit controlling the equipment equipment you should turn the Auxiliary Heat Lockout option OFF to allow the external fossil fuel kit to function properly.

85. Operation Compressor and Auxiliary Heat Lockouts
Electric Auxiliary heat
Must set outdoor temperature sensor for control
Choose compressor lockout temperature
Choose auxiliary lockout temperature
Compressor and Auxiliary Heat Lockouts are available for 2 Heat/1 Cool or 3 Heat/2 Cool Heat Pump Systems. The following 4 items must be true and set in the Installer Setup:
1. The auxiliary backup heat must be Electric Back-up Heat. (ISU # 0200)
2. The Outdoor Temperature Sensor for the Control option in ISU # 0340.
3. Choose a Compressor Lockout Temperature in ISU # 0350.
4. Choose an Auxiliary Heat Lockout Temperature in ISU # 0360.
Operation in the Heat Mode
When the outdoor temperature is below the Compressor Lockout Temperature, only the Auxiliary Heat will operate.
When the outdoor temperature is above the Auxiliary Heat Lockout Temperature, only the Compressor operates.
When the outdoor temperature is between the two temperatures, both the Compressor and Auxiliary Heat Operate.
Operation in the Emergency Heat Mode
Once the thermostat is placed in the Emergency Heat mode, the compressor and auxiliary lockout features are turned off. In the Emergency heat mode, the compressor is locked out. The first stage of heat is whatever is connected to the E terminal. The second stage of heat is connected to the Aux. terminal. Usually the emergency and auxiliary heat sources are electric strip heat in these cases.
Note: If you have an external fossil fuel kit controlling the equipment equipment you MUST turn the Auxiliary Heat Lockout option OFF to allow the external fossil fuel kit to function properly.
5º F deadband between Compressor and Auxiliary Heat Lockout Temperatures

86. Emergency Head mode: Balance Point Temperature ignored
Operation
Dual Fuel Heat Pumps
Thermostat controls backup fossil fuel heat
Outdoor temperature sensor for control
Choose Balance Point lockout temperature in installer setup number 0350
No lockout
15, 20, 25, 30, 35, 40 or 45 0F
COMPRESSOR ONLY
Fan does energize
Balance
Point 30
OUTDOOR TEMPERATURE
FOSSIL FUEL ONLY
Fan does not energize
Balance Point Temperature is available for 2 Heat/1 Cool or 3 Heat/2 Cool Heat Pump Systems that use Fossil Fuel as the back-up (auxiliary) heat source. The following 4 items must be true and set in the Installer Setup:
1. The Fossil Fuel Option as the backup heat source must be selected (ISU # 0200).
2. No External Fossil Fuel Kit is controlling the back-up heat source in ISU # 0210.
3. The Outdoor Temperature Sensor for the the Control option is selected in ISU # The thermostat selects this for you automatically based on previous selections.
4. Choose the appropriate Balance Point Temperature in ISU # 0350.
Operation in the Heat Mode Above the Balance Point Temperature
When the outdoor temperature is above the selected Balance Point Temperature, only the compressor operates and the fan (G terminal) energizes when the thermostat calls for Heat. In this example, with a 300F Balance Point Temperature the compressor will operate above 30 and the auxiliary heat will operate below 30. Thermostat controls the fan in this case.
Operation in the Heat Mode Below the Balance Point Temperature
When the outdoor temperature is below the selected Balance Point Temperature, only the Fossil Fuel (auxiliary heat) operates and the fan (G terminal) does not energize when the thermostat calls for heat. Thermostat does NOT control fan. The fossil fuel backup controls the fan.
Operation in the Emergency Heat Mode
The Balance Point Temperature is not used in the Emergency heat mode. When the thermostat is moved to the Emergency Heat Position, the compressor is locked out. The first stage of heat is whatever is connected to the E terminal. The second stage of heat is what is connected to the Aux. terminal. Often there is only one source of non-compressor heat and the E terminal is jumped to the Aux. terminal.
Note: If you have an external fossil fuel kit controlling the equipment you should not set a Balance Point temperature to allow the external fossil fuel kit to function properly.
Emergency Head mode: Balance Point Temperature ignored

87. Recovery Heat Pump Systems Wake Room Temperature COMPRESSOR RECOVERY
In heat pump applications, Adaptive Intelligent Recovery uses a second recovery ramp to minimize use of auxiliary heat to ensure energy savings during recovery.
This slide describes the relationship between the heat pump equipment setting during recovery and the auxiliary setting during recovery.
A separate recovery ramp for the auxiliary heat equipment is utilized by the to allow the compressor to operate longer during recovery to minimize auxiliary heat usage and increase energy savings. The recovery rate for the auxiliary heat usage is always twice that of the heat pump compressor recovery rate.
COMPRESSOR
RECOVERY
RAMP
AUXILIARY HEAT
RECOVERY RAMP

88. Recovery Heat Pump Systems Wake Mild Weather: 50oF Compressor Setpoint
Aux. Heat Setpoint
Room Temperature
Compressor: ON
OFF
Auxiliary Heat:
This slide describes the heat pump operation during mild weather.
The recovery from an energy savings period will utilize the heat pump compressor - not the more expensive auxiliary heat stage.
The heat pump (compressor) setting is based on the setback period time and temperature setting and the comfort period (WAKE) time and temperature setting.
This slide shows the outdoor temperature affect on the space temperature and as a result the compressor operation can meet the space requirements without utilizing the auxiliary heat stage.

89. Recovery Heat Pump Systems Wake Moderate Weather: 30oF
This slide describes the heat pump operation when outdoor temperature is close to the balance point of the heat pump equipment.
Balance point is defined as the temperature at which the output of the compressor just equals the heating load of the building. Below the balance point the heat pump compressor alone can not keep the building warm.
Recovery from an energy savings period will utilize the heat pump (compressor). The auxiliary heat will only be used if necessary.
The slide’s graph shows some undershooting of room temperature during the recovery based on moderate weather conditions.
Compressor Setpoint
Aux. Heat Setpoint
Room Temperature
Wake ON
Compressor:
OFF ON
Auxiliary Heat:
OFF

90. Recovery Heat Pump Systems Severe Weather: 0oF Wake
This slide describes the heat pump operation during severe weather conditions - when the temperature is below the heat pump balance point.
During recovery from an energy savings period, the compressor will run longer - trying to achieve the comfort setting at the required time - while also saving energy.
However, the outdoor temperature is extreme and requires the auxiliary heat to compensate and assist in achieving the comfort setting.
Once the comfort setting is reached, the compressor and auxiliary heat will cycle as needed to maintain the comfort setting (the compressor will always try to achieve the comfort setting before using the auxiliary heat stage).
Compressor Setpoint
Aux. Heat Setpoint
Room Temperature
Wake ON
Compressor:
OFF ON
Auxiliary Heat:
OFF