Honeywell TH9421C1004 User manual

VisionPRO® IAQ
Touch-screen Programmable Thermostat
® 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.
Installation
Guide
69-1816EFS-03
For up to 4 Heat/2 Cool systems with Honeywell THM5421C or equivalent.
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 manage-
ment authority for instructions regarding recycling and proper disposal.
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.
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
Press DONE to save changes
DONE
TUE
15
6
2006
Time
Press DONE to exit
DONE
TUE
6
PM
1:00
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 Guide
69-1816EFS—03 2
Installer setup
Setup function Settings & options (factory default in bold)
0110 Zone number 0 Not zoned
1–9 Zone number
0120 Year
(first two digits)
20 (2000-2099)
21 (2100-2178)
0130 Year
(second two digits)
06 (2006)
[Other options: 00-99]
0140 Month 6 [Other options: 1-12]
0150 Date 15 [Other options: 1-31]
0160 Schedule format 4 7-day programming
0Non-programmable
0165 Restore Energy
Star schedule
0No
1Yes
0172 System type 1 Conventional
2 Heat pump
3 Heat only (no fan)
EAuto Discover **
0174 Cooling compressor
stages
11 stage of cool
[Other options: 0 or 2 stages, or E]
0176 Heat or Heat Pump
Aux stages
11 stage of heat
[Other options: 0, 2 or 3 stages, or E]
0180 Fan control
(conventional heat)
0Gas/Oil heat (equipment controls heating fan)
1 Electric furnace (thermostat controls heating fan)
2 Equipment controls stage 1, thermostat controls stage 2+
EAuto Discover **
0190 Changeover valve
(O/B terminal)
0O/B terminal controls valve in cooling
1O/B terminal controls valve in heating
0200 Backup heat
(Aux & EmHeat)
EAuto Discover **
0Electric backup heat
1Fossil fuel backup heat
Installer setup
**See page 6
SCHED HOLD
TUE
FAN
AUTO
Inside
70
6
aM
6:00
SYSTEM
HEAT
1Press SYSTEM Press DONE to save & exit
DONE
TUE
Inside
70
20
0120
Function Setting
Press stto change
2Press and hold for 5 seconds
3Change settings (see p. 2-6)
DONE
TUE
Inside
70
20
0120
DONE CANCEL
TUE
aM
6:00
SYSTEM
HEAT

VisionPRO® IAQ
3 69-1816EFS—03
0210 External fossil
fuel kit
1External fossil fuel kit controls backup heat
0Thermostat controls backup heat (outdoor sensor required)
0220 Stage 1 compressor
1cycle rate
EAuto Discover **
[Other options: 1 to CPH]
0230 Stage 2 compressor
cycle rate
EAuto Discover **
[Other options: 1 to 6 CPH]
0240 Stage 1 heat cycle
rate (CPH= cycles
per hour)
EAuto Discover **
[Other options: 1 to 12 CPH]
0250 Stage 2 stage heat
cycle rate (CPH)
EAuto Discover **
[Other options: 1 to 12 CPH]
0260 Stage 3 heat cycle
rate (CPH)
EAuto Discover **
[Other options: 1 to 12 CPH]
0280 Backlight 0 Backlight on for approx. 45 seconds after keypress
1Backlight always on low intensity, full bright after keypress
0300 Manual/Auto
changeover
0Manual (User options: Heat/Cool/Off)
1Automatic (User options: Heat/Cool/Auto/Off)
(System selects heat/cool based on indoor temp.)
0310 Auto changeover
deadband
3Heat/cool settings 3°F apart (1.5°C)
[Other options: 2-9 (2°F to 9°F/1°C to 5°C)]
0320 Temperature display 0 Fahrenheit
1Celsius
0330 Daylight savings 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
0340 Indoor temp.
sensor
0Display temp. at thermostat location only
1 Display temp. at indoor sensor location(s)
2 Average between thermostat & sensor location(s)
0342 Outdoor temp.
sensor
EAuto Discover **
0 None
1 Remote sensor
0345 Dual fuel heat
pump control
1Balance point plus 2°F droop **
0 Balance point only **
2 Balance point/Aux Heat Lockout plus 2°F droop **
0346 Dual fuel heat
pump upstage to
furnace timer
60 60 minutes **
0 Off
[Other options: 30, 45 or 75 minutes]
0350 Heat pump
compressor lockout
0No compressor lockout **
[Other options: 5 to 60°F (-15°C to 15.5°C)]
0360 Heat pump
auxiliary lockout
0No heat pump auxiliary lockout **
[Other options: 5 to 65°F (-15°C to 18.5°C)]
0365 Discharge temp.
sensor
EAuto Discover **
0 No
1 Yes
0370 Indoor humidity
sensor
1Internal sensor in thermostat
0 Sensors disabled
E Auto Discover **
Setup function Settings & options (factory default in bold)
Installer setup
**See page 6

Installation Guide
69-1816EFS—03 4
**See page 6
0372 Indoor humidifica-
tion control
EAuto Discover **
0 Off
1 Humidify (no frost protection)
3 Humidify (with frost protection)
0374 Humidifier fan action 0 Humidify only while fan or heat is on
1 Humidify forces fan on
2 Humidify only when heat is on
3 Humidifier operates independent of fan
0379 Dehumidification
control
0 No dehumidification control
1 Dehumidify with air conditioner
3 Whole house dehumidifier
0383 Over-cooling limit 3 3°F (1.5°C)
[Other options: 1, 2 (1°F or 2°F/0.5°C to 1.5°C)]
0384 Dehumidification
fan action
0 System fan turns on with dehumidifier
1 Dehumidifier operates independent of fan
0390 Dehumidification
away mode
0 No
1 Yes
0391 Dehum. away mode
fan setting
0 Fan auto
1 Fan always on
2 Fan circulate
0392 Dehum. away mode
low limit temp.
76 Low limit temperature 76°F (24°C)
[Other options: 70°F to 80°F (21°C to 27°C)]
0393 Dehum. away mode
temp. setting
85 Away temperature 85°F (29°C)
[Other options: 70°F to 99°F (21°C to 37°C)]
0394 Away dehumidifica-
tion setting
65 Away humidity level 65%
[Other options: 55% to 70%]
0400 Ventilation control 0 No ventilation
1 Ventilation always allowed
2 Ventilation not allowed during sleep period
0401 Number of
bedrooms
2 Two bedrooms
[Other options: 1 to 6]
0402 Size of house 10 1,000 square feet
[Other options: 11 to 50 (1,100 to 5,000 square feet)]
0403 Ventilation level 160 CFM (cubic feet per minute)
[Other options: (30 to 195 CFM)]
0404 Max. ventilation
% limit
50 50% ventilation limit
[Other options: 30% to 60% or 100%]
PMeets ASHRAE 62.2 standard
FDoes not meet ASHRAE 62.2 standard
0405 Ventilation fan
action
1 Ventilation on forces fan on
2 Ventilation does not force fan on
0406 Ventilation in high
humidity
1 On (heat mode only)
0 Off
0500 Furnace filter
change alert
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
Setup function Settings & options (factory default in bold)
Installer setup

VisionPRO® IAQ
5 69-1816EFS—03
**See page 6
0502 Furnace filter
alert options
0 Timer counts Heat & Cool run time
1 Timer counts Cool run time only
0510 Humidifier pad
change alert *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
0520 UV lamp change
alert
E Auto Discover **
0 Off
1 365 calendar days (1 year)
2 730 calendar days (2 years)
0530 Adaptive Intelligent
Recovery™
1 On **
0 Off
0540 Program periods 4 4 program periods (Wake, Leave, Return, Sleep)
2 2 program periods (Wake, Sleep)
0580 Compressor off
time (min.)
5 5 minute compressor off time **
[Other options: 0 to 4 minutes]
0600 Heat temperature
range stop
90 Max. heat temperature setting is 90°F (32°C)
[Other options: 40 to 90°F (4°C to 32°C)]
0610 Cool temperature
range stop
60 Min. cool temperature setting is 60°F (15°C)
[Other options: 60-99°F (15°C to 37°C)]
0640 Clock format 12 12-hour time (i.e., "3:30 pm")
24 24-hour time (i.e., "15:30")
0650 Extended fan
timer (heat)
0Off
[Other options: Fan runs for 30, 60, 90 or 120 seconds after call for
heating ends]
0660 Extended fan
timer (cool)
0 Off
[Other options: Fan runs for 30, 60, 90 or 120 seconds after call for
cooling ends]
0670 Keypad lock 0 Keypad unlocked (fully functional)
1 Partially locked (access to temperature settings only)
2 Fully locked
0680 Heat temperature
control
2 Standard temperature control (recommended)
1 Choose if room is warmer than set temperature
3 Choose if room does not reach set temperature
0690 Cool temperature
control
2 Standard temperature control (recommended)
1 Choose if room is cooler than set temperature
3 Choose if room does not reach set temperature
0700 Temperature
display offset
0 Thermostat displays actual room temperature
[Other options: -3°F to +3°F offset (-1.5°C to 1.5°C)]
0701 Humidity
display offset
0 Thermostat displays actual room humidity
[Other options: -5% to +5% offset]
0710 RESET 0 No reset
1 Reset installer options & program schedule to factory default (only
date and time settings are retained)
Setup function Settings & options (factory default in bold)
Installer setup
*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.

Installation Guide
69-1816EFS—03 6
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).

VisionPRO® IAQ
7 69-1816EFS—03
Installer system test
During installer setup, press t
repeatedly until “Test” appears
Press stto
select test
Test
number
Press DONE to terminate testing
System
status
Press stto
change status
DONE
TUE
Inside
70
20
0120
DONE
1
0
TEST
System test System status Other messages
1 Cooling
system
0Off
1Test cooling stage 1
2Test cooling stages 1 & 2
2 Fan system 0Fan off
1Fan on
3 Heating
system
0Off
1Test heating stage 1
2Test heating stages 1, 2
3Test heating stages 1, 2, 3
4Test heating stages 1, 2, 3, 4
4 Emergency
heating
system
0Off
1Test EmHeat stage 1
2Test EmHeat stages 1, 2
5 Humidifier 0Off
1On
6 Dehumidifier 0Off
1On
7 Ventilator 0Off
1On
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 com-
pressor quickly.
1. Enter the Installer System Test by entering
Installer Setup.
2. The test appears at the end of the Installer
Setup Numbers.
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.
How to Use the Installer System Test
The Installer Test is part of the Installer Setup Menu.

Installation Guide
69-1816EFS—03 8
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.
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

VisionPRO® IAQ
Thermostat programmable à écran tactile
® U.S. Marque déposée Brevets US N0. 6,208,263; 6,373,376; 6,448,901;
6,595,430; 7,012,927; 7,044,397; D509151 et autres brevets en instance.
Copyright © 2008 Honeywell International Inc. Tous droits réservés.
Guide
d’installation
Pour installations comportant 4 circuits de chauffage/2 circuits de climatisation avec Honeywell
THM5421C ou équivalent.
Il est impératif de faire réaliser l’installation par un technicien chevronné.
Lisez attentivement les présentes consignes. La non observation de celles-ci risque
d’endommager le produit ou de présenter des dangers.
REMARQUE À PROPOS DU MERCURE : Si ce produit sert à remplacer une com-
mande qui contient du mercure dans un tube scellé, ne pas jeter la vieille commande
aux ordures. Consulter l’administration locale de gestion des déchets pour connaître
les instructions relatives au recyclage et à l’élimination.
MISE EN GARDE : RISQUE DE CHOC ÉLECTRIQUE. Peut causer un choc électrique
ou endommager l’équipement. Couper l’alimentation avant de commencer l’installation.
Installation
Le thermostat s’installe sur une boîte de jonction de 2 x 4 po, sur un mur de placoplâtre ou de
plâtre à l’aide des chevilles d’ancrage fournies (percer des ouvertures de 3/16 po dans les murs de
placoplâtre; percer des ouvertures de 7/32 po dans les murs de plâtre).
Raccorder les bornes 1, 2 et 3 du thermostat aux bornes 1, 2 et 3 du module d’interface ou du
tableau de zonage; consulter le guide d’installation du module d’interface ou du tableau de zonage
pour observer les schémas de raccordement.
Placez date/l'heure
Appuyez DONE
pour sauvegarder
les modifications
Date
Mois
Année
DONE
TUE
15
6
2006
Heure
Appuyez DONE pour quitter
DONE
TUE
6
PM
1:00
Ce thermostat contient une pile au lithium qui pourrait contenir du perchlorate.
Matériau contenant du perchlorate — des consignes de manipulation spéciales pourraient
s'appliquer, prière de consulter www.dtsc.ca.gov/hazardouswaste/perchlorate

Installation Guide
69-1816EFS—03 10
Fonctions Paramètres et choix (défaut usine en gras)
** Voir la page 14
0110 Nombre de zones 0 Aucune
1–9 Nombre de zones
0120 Année (deux
premiers chiffres)
20 (2000-2099)
21 (2100-2178)
0130 Année (deux
derniers chiffres)
06 (2006)
[Autres choix : 00-99]
0140 Mois 6[Autres choix : 1-12]
0150 Date 15 [Autres choix : 1-31]
0160 Format du
programme
4 Programmation 7 jours
0 Non-programmable
0165 Programme du
défaut Energy Star
0 Non
1 Oui
0172 Type d’installation 1 Typique
2 Thermopompe
3 La chaleur seulement (aucun ventilateur)
E Auto Discover (arrangement automatique) **
0174 Étages de compres-
seur de refroid.
1 1 étage de refroidissement
[Autres choix : 0, 2 ou E]
0176 Étages auxiliaires
de chauffage ou de
thermopompe
1 1 étage de chauffage
[Autres choix : 0, 2, 3 ou E]
0180 Commande de
ventilateur (la
chaleur typique)
0 Gaz /mazout (l’équipement commande le ventilateur de
chauffage)
1 Chaudière électrique (le thermostat commande le ventilateur de
chauff.)
2 L’équipement commande étage 1, thermostat commande étage 2+
E Auto Discover (arrangement automatique) **
0190 Valve d’inversion
(borne O/B)
0 Borne O/B commande la valve en climatisation
1 Borne O/B commande la valve en chauffage
Configuration
Configuration
SCHED HOLD
TUE
FAN
AUTO
Inside
70
6
aM
6:00
SYSTEM
HEAT
1Appuyer sur
SYSTEM
2Appuyez 5 secondes
3Changez les arrangements
(voir p. 10-14)
Appuyez DONE pour
sauvegarder et quitter
DONE
TUE
Inside
70
20
0120
DONE
TUE
Inside
70
20
0120
DONE CANCEL
TUE
aM
6:00
SYSTEM
HEAT
ArrangementFonction
Appuyez stpour changer