Honeywell IAQ User Manual
Installation
69-1816EFS-03
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2006
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Guide
VisionPRO® IAQ
Touch-screen Programmable Thermostat
For up to 4 Heat/2 Cool systems with Honeywell THM5421C or equivalent.
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.
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.
This thermostat contains a Lithium battery which may contain Perchlorate material.
Perchlorate Material—special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate
Installation
Thermostat can be mounted on 2" x 4" J box or on drywall or plaster using included wall
anchors (drill 3/16" holes for drywall; 7/32" holes for plaster).
Connect 1, 2, 3 terminals on thermostat to 1, 2, 3 terminals on EIM or Zone Panel; see EIM or
Zone Panel Installation Guide for wiring diagrams.
Set date/time
Date
Month
Year
Time
Press DONE to save changes
® U.S. Registered Trademark. US Patent No. 6,208,263;
6,373,376; 6,448,901; 6,595,430; 7,012,927; 7,044,397; D509151
and other patents pending. Copyright © 2008 Honeywell
International Inc. All rights reserved.
Press DONE to exit
Installation Guide
SCHED HOLD
TUE
FAN
AUTO
Inside
70
6
aM
6:00
SYSTEM
HEAT
DONE
TUE
Inside
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0120
DONE
TUE
Inside
70
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0120
DONE CANCEL
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SYSTEM
HEAT
Installer setup
1 Press SYSTEM Press DONE to save & exit
2 Press and hold for 5 seconds
3 Change settings (see p. 2-6)
Function Setting
Press s t to change
Installer setup
Setup function Settings & options (factory default in bold)
0110 Zone number 0 Not zoned
0120 Year
(first two digits)
0130 Year
(second two digits)
0140 Month 6 [Other options: 1-12]
0150 Date 15 [Other options: 1-31]
0160 Schedule format 4 7-day programming
0165 Restore Energy
Star schedule
0172 System type
0174 Cooling compressor
stages
0176 Heat or Heat Pump
Aux stages
0180 Fan control
(conventional heat)
0190 Changeover valve
(O/B terminal)
0200 Backup heat
(Aux & EmHeat)
69-1816EFS—03 2
1–9 Zone number
20 (2000-2099)
21 (2100-2178)
06 (2006)
[Other options: 00-99]
0 Non-programmable
0 No
1 Yes
1 Conventional
2 Heat pump
3 Heat only (no fan)
E Auto Discover **
1 1 stage of cool
[Other options: 0 or 2 stages, or E]
1 1 stage of heat
[Other options: 0, 2 or 3 stages, or E]
0 Gas/Oil heat (equipment controls heating fan)
1 Electric furnace (thermostat controls heating fan)
2 Equipment controls stage 1, thermostat controls stage 2+
E Auto Discover **
0 O/B terminal controls valve in cooling
1 O/B terminal controls valve in heating
E Auto Discover **
0 Electric backup heat
1 Fossil fuel backup heat
**See page 6
VisionPRO® IAQ
Installer setup
Setup function Settings & options (factory default in bold)
0210 External fossil
fuel kit
0220 Stage 1 compressor
1cycle rate
0230 Stage 2 compressor
cycle rate
0240 Stage 1 heat cycle
rate (CPH= cycles
per hour)
0250 Stage 2 stage heat
cycle rate (CPH)
0260 Stage 3 heat cycle
rate (CPH)
0280 Backlight 0 Backlight on for approx. 45 seconds after keypress
0300 Manual/Auto
changeover
0310 Auto changeover
deadband
0320 Temperature display 0 Fahrenheit
0330 Daylight savings
0340 Indoor temp.
sensor
0342 Outdoor temp.
sensor
0345 Dual fuel heat
pump control
0346 Dual fuel heat
pump upstage to
furnace timer
0350 Heat pump
compressor lockout
0360 Heat pump
auxiliary lockout
0365 Discharge temp.
sensor
0370 Indoor humidity
sensor
3 69-1816EFS—03
1 External fossil fuel kit controls backup heat
0 Thermostat controls backup heat (outdoor sensor required)
E Auto Discover **
[Other options: 1 to CPH]
E Auto Discover **
[Other options: 1 to 6 CPH]
E Auto Discover **
[Other options: 1 to 12 CPH]
E Auto Discover **
[Other options: 1 to 12 CPH]
E Auto Discover **
[Other options: 1 to 12 CPH]
1 Backlight always on low intensity, full bright after keypress
0 Manual (User options: Heat/Cool/Off)
1 Automatic (User options: Heat/Cool/Auto/Off)
(System selects heat/cool based on indoor temp.)
3 Heat/cool settings 3°F apart (1.5°C)
[Other options: 2-9 (2°F to 9°F/1°C to 5°C)]
1 Celsius
2 Auto-change to daylight savings time (2007 and beyond, for
areas that use the new 2007 DST calendar)
1 Auto-change to daylight savings time (through 2006, and for areas
that do not use the new 2007 DST calendar)
0 Daylight savings time is turned off
0 Display temp. at thermostat location only
1 Display temp. at indoor sensor location(s)
2 Average between thermostat & sensor location(s)
E Auto Discover **
0 None
1 Remote sensor
1 Balance point plus 2°F droop **
0 Balance point only **
2 Balance point/Aux Heat Lockout plus 2°F droop **
60 60 minutes **
0 Off
[Other options: 30, 45 or 75 minutes]
0 No compressor lockout **
[Other options: 5 to 60°F (-15°C to 15.5°C)]
0 No heat pump auxiliary lockout **
[Other options: 5 to 65°F (-15°C to 18.5°C)]
E Auto Discover **
0 No
1 Yes
1 Internal sensor in thermostat
0 Sensors disabled
E Auto Discover **
**See page 6
Installation Guide
Installer setup
Setup function Settings & options (factory default in bold)
0372 Indoor humidifica-
tion control
0374 Humidifier fan action 0 Humidify only while fan or heat is on
0379 Dehumidification
control
0383 Over-cooling limit
0384 Dehumidification
fan action
0390 Dehumidification
away mode
0391 Dehum. away mode
fan setting
0392 Dehum. away mode
low limit temp.
0393 Dehum. away mode
temp. setting
0394 Away dehumidifica-
tion setting
0400 Ventilation control
0401 Number of
bedrooms
0402 Size of house
0403 Ventilation level
0404 Max. ventilation
% limit
0405 Ventilation fan
action
0406 Ventilation in high
humidity
0500 Furnace filter
change alert
E Auto Discover **
0 Off
1 Humidify (no frost protection)
3 Humidify (with frost protection)
1 Humidify forces fan on
2 Humidify only when heat is on
3 Humidifier operates independent of fan
0 No dehumidification control
1 Dehumidify with air conditioner
3 Whole house dehumidifier
3 3°F (1.5°C)
[Other options: 1, 2 (1°F or 2°F/0.5°C to 1.5°C)]
0 System fan turns on with dehumidifier
1 Dehumidifier operates independent of fan
0 No
1 Yes
0 Fan auto
1 Fan always on
2 Fan circulate
76 Low limit temperature 76°F (24°C)
[Other options: 70°F to 80°F (21°C to 27°C)]
85 Away temperature 85°F (29°C)
[Other options: 70°F to 99°F (21°C to 37°C)]
65 Away humidity level 65%
[Other options: 55% to 70%]
0 No ventilation
1 Ventilation always allowed
2 Ventilation not allowed during sleep period
2 Two bedrooms
[Other options: 1 to 6]
10 1,000 square feet
[Other options: 11 to 50 (1,100 to 5,000 square feet)]
160 CFM (cubic feet per minute)
[Other options: (30 to 195 CFM)]
50 50% ventilation limit
[Other options: 30% to 60% or 100%]
P Meets ASHRAE 62.2 standard
F Does not meet ASHRAE 62.2 standard
1 Ventilation on forces fan on
2 Ventilation does not force fan on
1 On (heat mode only)
0 Off
E Auto Discover ** 7 270-day run time
0 Off 8 365-day run time
1 10-day run time 9 30 calendar days
2 30-day run time 10 60 calendar days
3 60-day run time 11 90 calendar days
4 90-day run time 12 120 calendar days
5 120-day run time 13 180 calendar days
6 180-day run time 14 365 calendar days
**See page 6
69-1816EFS—03 4
VisionPRO® IAQ
Installer setup
Setup function Settings & options (factory default in bold)
0502 Furnace filter
alert options
0510 Humidifier pad
change alert *
0520 UV lamp change
alert
0530 Adaptive Intelligent
Recovery™
0540 Program periods
0580 Compressor off
time (min.)
0600 Heat temperature
range stop
0610 Cool temperature
range stop
0640 Clock format
0650 Extended fan
timer (heat)
0660 Extended fan
timer (cool)
0670 Keypad lock
0680 Heat temperature
control
0690 Cool temperature
control
0700 Temperature
display offset
0701 Humidity
display offset
0710 RESET
0 Timer counts Heat & Cool run time
1 Timer counts Cool run time only
E Auto Discover **
0 Off
1 90 calendar days or 30 days run time
2 180 calendar days or 60 days run time
3 365 calendar days or 90 days run time
E Auto Discover **
0 Off
1 365 calendar days (1 year)
2 730 calendar days (2 years)
1 On **
0 Off
4 4 program periods (Wake, Leave, Return, Sleep)
2 2 program periods (Wake, Sleep)
5 5 minute compressor off time **
[Other options: 0 to 4 minutes]
90 Max. heat temperature setting is 90°F (32°C)
[Other options: 40 to 90°F (4°C to 32°C)]
60 Min. cool temperature setting is 60°F (15°C)
[Other options: 60-99°F (15°C to 37°C)]
12 12-hour time (i.e., "3:30 pm")
24 24-hour time (i.e., "15:30")
0 Off
[Other options: Fan runs for 30, 60, 90 or 120 seconds after call for
heating ends]
0 Off
[Other options: Fan runs for 30, 60, 90 or 120 seconds after call for
cooling ends]
0 Keypad unlocked (fully functional)
1 Partially locked (access to temperature settings only)
2 Fully locked
2 Standard temperature control (recommended)
1 Choose if room is warmer than set temperature
3 Choose if room does not reach set temperature
2 Standard temperature control (recommended)
1 Choose if room is cooler than set temperature
3 Choose if room does not reach set temperature
0 Thermostat displays actual room temperature
[Other options: -3°F to +3°F offset (-1.5°C to 1.5°C)]
0 Thermostat displays actual room humidity
[Other options: -5% to +5% offset]
0 No reset
1 Reset installer options & program schedule to factory default (only
date and time settings are retained)
* Humidifier Pad replacement will be displayed in the user interface as run
time days if ISU 372 is set to 1 or 3 and calendar days if ISU 372 is set to 0.
**See page 6
5 69-1816EFS—03
Installation Guide
Special function
Auto Discover: Setup functions set to “E” (Auto Discover) will be configured automatically,
based on information sent from connected equipment. When using Auto Discover, verify that
the discovered value is correct. If it is not, the equipment is not communicating the information,
and you must change settings manually.
Adaptive Intelligent Recovery (Setup Function 0530): Allows the thermostat to “learn” how
long the furnace and air conditioner take to reach programmed temperature settings, so the
temperature is reached at the scheduled time.
Compressor Protection (Setup Function 0580): Forces the compressor to wait a few minutes
before restarting, to prevent damage. During this time, the message “Wait” flashes on the
display.
Southern Away Dehumidification Control (Setup Functions 0390-0394): This feature is useful
for homes in southern climates. It allows humidity control when the the home is unoccupied for
long periods during the hot/humid season. You can control temperature (Function 0393) and
dehumidification (Function 0394) while away. You can control humidity with a dehumidifier or a
cooling system (Function 0379). If a cooling system is used, humidity is controlled by cooling
indoor air to the Low Limit Temperature (Function 0392). When the desired humidity is reached,
the system will maintain the temperature you select in Function 0393.
Heat Pump Control — Electric Backup (Setup Functions 0350-0360): If an outdoor
temperature sensor is installed, select a compressor lockout temperature (Function 0350).
Below this temperature, only electric heat operates. Also select an auxiliary lockout temperature
(Function 0360). Above this temperature, only the compressor operates. Between these
temperatures, both heat sources operate.
Heat Pump Control — Fossil Fuel Backup (Setup Function 0345):
Option 0 (Balance point only): If outdoor temperature is above balance point (Function 0350),
only the compressor operates. Below this temperature, only backup heat operates.
Option 1 (Balance point + 2°F droop): As above, but backup heat is activated if room
temperature drops by 2°F (compressor is deactivated).
Option 2: (Balance point/Aux Heat +2°F droop): Compressor works only above auxiliary lockout
temperature, backup heat works only below balance point, 2°F droop between temperatures. If
temperature is not reached in a reasonable time, set the upstage timer (Function 0346). After the
designated time, the compressor will be deactivated and the system will switch to backup heat.
Ventilation Control (Setup Functions 0400-0406): If the system includes a self-powered
ventilation unit (Function 0400), the home can be ventilated on demand, or ventilated
automatically if high humidity is detected while in heating mode (Function 0406).
69-1816EFS—03 6
Installer system test
DONE
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DONE
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0
TEST
VisionPRO® IAQ
During installer setup, press t
repeatedly until “Test” appears
Press DONE to terminate testing
Test
number
Press s t to
select test
System test System status Other messages
1 Cooling
system
2 Fan system 0 Fan off
3 Heating
system
4 Emergency
heating
system
5 Humidifier 0 Off
6 Dehumidifier 0 Off
7 Ventilator 0 Off
0 Off
1 Test cooling stage 1
2 Test cooling stages 1 & 2
1 Fan on
0 Off
1 Test heating stage 1
2 Test heating stages 1, 2
3 Test heating stages 1, 2, 3
4 Test heating stages 1, 2, 3, 4
0 Off
1 Test EmHeat stage 1
2 Test EmHeat stages 1, 2
1 On
1 On
1 On
P Ventilation meets ASHRAE 62.2
standard (Function 0404)
F Ventilation does not meet ASHRAE
62.2 standard (Function 0404)
Err See error codes
CAUTION: EQUIPMENT
DAMAGE HAZARD. Compressor
protection is bypassed during
testing. To prevent equipment
damage, avoid cycling the compressor quickly.
System
status
Press s t to
change status
How to Use the Installer System Test
The Installer Test is part of the Installer Setup Menu.
1. Enter the Installer System Test by entering
Installer Setup.
2. The test appears at the end of the Installer
Setup Numbers.
7 69-1816EFS—03
3. See above for available Installer System
Tests.
4. If installed with a Discharge Air
Temperature Sensor (ISU365=1), press
MORE to view the discharge temperature,
and press CANCEL to return to the Installer
test screen.
Installation Guide
Error codes
027 Faulty thermostat (must be replaced)
035 Duplicate thermostat zone detected
036 Duplicate UV timer
037 Duplicate filter timer
038 Duplicate humidifier pad timer
039 Duplicate indoor humidity sensor
040 Compressor should be running but it is not
050 Duplicate outdoor temperature sensor
052 Faulty post-coil air discharge sensor
053 Faulty outdoor temperature sensor
054 Faulty indoor humidity sensor
089 Heating/cooling equipment is missing
090 Data interface is continuously busy
091 Thermostat is not receiving data from other equipment
118 Faulty discharge air temperature sensor
119 Faulty temperature sensor
121 Duplicate post-coil air discharge sensor
Accessories
Please contact your distributor to order replacement parts.
Outdoor temperature sensor ............................Part number C7089U1006
Remote indoor temperature sensor .................Part number C7189U1005
Discharge air temp. sensor ..............................Part number C7835A1009
Energy recovery ventilator ................................Part number ER200B2006
Heat recovery ventilator ...................................Part number HR200B1005
Fresh air damper ...............................................Part number EARD6
2-Channel Telephone access module .............Part number W8735D1009
4-Channel Telephone access module .............Part number W8735D1017
Bypass flow-through or steam humidifier .......Part number HE265A1007
UV air purifier .....................................................Part number UV100E1043
Cover plate ........................................................Part number 32003796-001
(Use to cover marks left by old thermostats.)
*Contact your dealer or Honeywell rep for a complete list of compatible products.
69-1816EFS—03 8
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