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VISIONPRO

IAQ TOTAL HOME COMFORT SYSTEM

68-0287—1

INSTALLER SETUP

Auto Discover is available when the TH9421C thermostat is

connected to an EIM. The EIM communicates information to

the thermostat. Thermostat settings can be specified using the

up and down arrow keys on the screen or set to Auto Discover.

Using Auto Discover

Some Installer setups are defaulted to Auto Discover. If not

defaulted, the installer can change the option to Auto Discover,

however, it is always important that the installer verify that the

auto discovered values are correct for the system that is

present.

When using the thermostat with an equipment interface

module, Auto Discover will discover factory default settings

and will not receive communications as to proper system

settings. The equipment interface module is preprogrammed at

the factory as a one heat one cool product and the thermostat

will “auto discover” those settings. The equipment interface

module will be reprogrammed when the installer manually

changes the configuration in the installer set up. It is not

recommended to use Auto Discover with an equipment

interface module.

When using the VisionPRO® IAQ thermostat with a W8835

zone panel, configure the zone panel, using the DIP switches

on the panel, for the proper system settings. Enter the installer

setup on each thermostat and assign zone numbers, and

change the system settings (ISU 172–180) to Auto Discover

(E) then press the discover button on the zone panel. The zone

panel will then communicate those settings back to the

thermostats and the thermostats will automatically configure

the ISU settings in Auto Discover, again it is important to verify

that the auto discovered values are correct.

NOTE: When a VisionPRO® IAQ thermostat is being added

to an existing zoning system with T8635 Thermostats

the new VisionPRO® IAQ must be set up as the Zone

One Thermostat (master zone controller), and can

only be used with a W8835 zone panel.

Follow these steps to enter the Installer Setup:

Press and release the System Key.

Press and hold the two blank keys on either side of the

center blank key for approximately five seconds until

screen changes.

Release the two blank keys when the screen on the ther-

mostat matches the screen below.

DONE

USE ARROWS TO SET YEAR AND TIME

M22425

SCHED HOLD CLOCK

SCREE

FAN

AUTO

THU

SYSTEM

EM HEAT

OFF

COOL

Following

Schedule

Inside

M23498

Humidity

DONE

CANCEL

SYSTE

HEAT

OFF

CHANGE FILTER UV LAMP

Following

Schedule

Inside

Set

OK TO PICK MULTIPLE DAYS SCREEN LOCKED

M23499

Humidity

DONE

M22442

Summary of Contents for VisionPRO IAQ

Page 1: ...now when to service or replace filters Various Hold options allow you to override the program schedule as desired Controls humidification to increase homeowner comfort while protecting woodwork and furnishings Controls dehumidification using air conditioner with high or low speed fan or a whole house dehumidifier Controls ventilation with other HRV ERV or Freshair damper Vent on demand and automat...

Page 2: ...ms show Heat On on the thermostat screen when Heat is activated Auxiliary Heat Indication VisionPRO IAQ Comfort Systems show Aux Heat On on the thermostat screen when Auxiliary Heat is activated Calibration C7089U1006 C7189U1005 and VisionPRO IAQ Comfort Sys tems are factory calibrated and require no field calibration Interstage Differential VisionPRO IAQ Comfort Systems operate with droopless con...

Page 3: ...ons in in mm Fig 3 C7089U1006 Outdoor Sensor Mounting Clip dimensions in in mm Fig 4 32003796 001 Cover Plate dimensions in in mm M23539 6 152 THERMOSTAT 4 9 16 116 3 3 8 86 WALLPLATE 3 3 8 86 THERMOSTAT AND WALLPLATE 1 3 8 35 7 9 32 185 1 21 64 34 6 57 64 175 4 35 64 116 M23544 FRONT VIEW SIDE VIEW M4488 1 1 2 38 7 7 8 200 3 5 16 84 3 5 16 84 M22139 5 1 2 140 ...

Page 4: ...tat where it can be affected by Drafts or dead spots behind doors and in corners Hot or cold air from ducts Radiant heat from sun or appliances Concealed pipes and chimneys Unheated uncooled areas such as an outside wall behind the thermostat Installing Wallplate CAUTION Electrical Hazard Can cause electrical shock or equipment damage Disconnect power before wiring The thermostat can be mounted ho...

Page 5: ...heck wiring to terminals 1 2 3 LED always off Wiring problem Check wiring to terminals 1 2 3 LED always on EIM may need replacement NOTE It is normal for the LED to blink continuously during startup and while checking equipment status Auto Discover mode Fig 8 Mounting EIM WIRING All wiring must comply with local electrical codes and ordinances See Fig 10 20 1 Select set of terminal identifications...

Page 6: ...on R 24 Vac Transformer RC 24 Vac Cooling Transformer RH 24 Vac Heating Transformer HUM1 HUM2 Humidification Connection normally open DHM1 DHM2 Dehumidification Connection normally open or closed based on installer setup VNT1 VNT2 Ventilation connection normally open W1 O B Stage 1 Heating Relay Conventional Change over Relay Heat Pump W2 AUX Stage 2 Heating Relay Conventional Auxiliary Heat fossi...

Page 7: ...ACTS M23487 FACTORY INSTALLED JUMPER BETWEEN R RC AND RH 1 2 3 C R RC RH COMMUNICATION TERMINALS COMMUNICATION LED W1 W2 W3 Y Y2 G 24 VAC O B AUX AUX2 Y Y2 G 1 2 3 CONV HP HEAT 1 RELAY HEAT 2 RELAY HEAT 3 RELAY COOL 1 RELAY COOL 2 RELAY FAN RELAY WIRE TO TERMINALS ON THERMOSTAT 1 1 M23488 FACTORY INSTALLED JUMPER BETWEEN R RC AND RH 1 2 3 C R RC RH COMMUNICATION TERMINALS COMMUNICATION LED W1 W2 W...

Page 8: ...e between R and Rc and connect the hot side of cooling transformer to R or Rc 1 Locate and remove the tab labeled Remove in the lower left corner on the thermostat back See Fig 21 Fig 21 Remove tab labeled Remove on thermostat back Mount Thermostat to Wallplate 1 Align the terminal screw blocks with the pins on the back of the thermostat Push the thermostat straight onto the wallplate until it sna...

Page 9: ...ng practices described below Avoid these practices to assure correct opera tion Use shielded cable to reduce interference if rerouting sensor wiring is not possible Be sure wires have a cable separate from the thermo stat cable Do not route temperature sensor wiring with building power wiring next to control contactors or near light dimming circuits electric motors or welding equipment Avoid poor ...

Page 10: ... one foot away from large inductive loads such as motors line starters lighting ballasts and large power distribution panels IMPORTANT Erratic temperature readings from a sensor can occur as a result of any of the wiring practices described below Avoid these practices to assure correct operation Be sure wires have a cable separate from the thermo stat cable Do not route temperature sensor wiring w...

Page 11: ...nsor locations In this case the thermostat sensor still carries a 50 weighting of the displayed temperature Install Discharge Air Temperature Sensor Optional Prior to installing Discharge Air Temperature Sensor DATS refer to the installation instructions included with the product for more information on placement and wiring When using a DATS with network zoning the DATS will monitor the duct air t...

Page 12: ...he zone panel using the DIP switches on the panel for the proper system settings Enter the installer setup on each thermostat and assign zone numbers and change the system settings ISU 172 180 to Auto Discover E then press the discover button on the zone panel The zone panel will then communicate those settings back to the thermostats and the thermostats will automatically configure the ISU settin...

Page 13: ...Options 4 0 Seven day programmable Non programmable 165 USU Restore Energy Star Schedule 0 1 No Yes 172 System Selection 1 2 3 E Conventional Heat Pump Heat Only No Fan Auto Discover Selection of a specific system setting will automatically modify some default settings and or hide other installer setup options that follow 174 Number of Cool Compressor Stages 0 1 2 E none 1 2 Auto Discover Not show...

Page 14: ... rate settings Auto Discover Only shown if ISU176 3 Default varies based on types of heating 280 USU Continuous Backlight 0 1 Backlight not on continuously Thermostat backlight comes on with each key press Backlight is on continuously If backlight is on continuously it is low intensity Light changes to full brightness after pressing any key 300 Changeover 0 1 Manual Auto Auto Changeover allows use...

Page 15: ...F 71 C Disabled 110 F to 170 F 43 5 C to 76 5 C Only Shown if ISU110 1 Master Zone Controller and Discharge Temperature Sensor is available 367 Zoning Low Temperature Limit 40 0 35 50 160 F 71 C Disabled 35 F to 50 F 1 5 C to 10 C Only Shown if ISU110 1 Master Zone Controller and Discharge Temperature Sensor is available 368 Staging Discharge Temperature High Limit 110 0 80 130 110 F 43 5 C Disabl...

Page 16: ...etting 70 80 70 F 80 F Default 76 F The air conditioner will be allowed to cool the living space to this temperature to meet the humidity setting that set in ISU394 393 Southern Dehumidification Away Temperature Setting 70 99 70 F 99 F Default 85 F The A C will maintain this temperature provided the humidity setting is satisfied This temperature setting can not be set lower than the temperature se...

Page 17: ...Return and Sleep 580 Min Compressor Off Time 0 1 2 3 4 5 Off 1 minute 2 minutes 3 minutes 4 minutes 5 minutes 600 Heat Temp Range Stops 40 90 40 F 90 F Show 1 2 degree C Default 90 F 610 Cool Temp Range Stops 60 99 60 F 99 F Show 1 2 degree C Default 60 F 640 USU Clock Format 12 24 12 Hour 24 Hour 650 Extended Fan on time Heat Blower Off Delay Heat 0 30 60 90 120 Off 30 seconds 60 seconds 90 secon...

Page 18: ...h a Discharge Air Temperature Sensor ISU365 1 press the MORE button to view the dis charge temperature and press Cancel to return to the Installer test screen Fig 28 Review thermostat buttons used during Installer System Test 700 Temperature Display Offset 3 2 1 0 1 2 3 3 F 1 5 C 2 F 1 C 1 F 5 C 0 F 0 C no difference in displayed temperature and actual room temperature 1 F 5 C 2 F 1 C 3 F 1 5 C 70...

Page 19: ...on page 34 Press the Next button to go to the beginning of the Installer Setup or press the Done button to exit the Installer System Test SCHED HOLD CLOCK SCREEN MORE TUE AM FAN AUTO SYSTEM HEAT COOL Following Schedule Inside Set To M23500 FAN SELECTS ON AUTO CIRC SYSTEM SELECTS EM HEAT HEAT OFF COOL UP ARROW RAISES TEMPERATURE SETTING DOWN ARROW LOWERS TEMPERATURE SETTING SCHED ENTERS SCHEDULING ...

Page 20: ... requires an outdoor temperature sensor The Frost Index scale 1 10 will limit the amount of humidity added to the air based on outdoor temperature with 1 most dry and 10 most humid This prevents frost from accumulating on windows WITHOUT FROST PROTECTION The frost setpoint is not displayed but a humidity setpoint can still be set 1 Press the More key until the inside humidity level set point is sh...

Page 21: ...s 400 401 402 403 and 404 Combined these will determine a percentage of maximum ventilation limit The thermostat will calculate whether or not this level of ventilation meets ASHRAE standard 62 2 If ASHRAE 62 2 is met a P will appear in the display above the setup number If ASHRAE 62 2 is not met an F will appear in the display above the setup number Passing ASHRAE 62 2 is only applicable when ven...

Page 22: ...ISU 345 2 When the outdoor temperature is above the Auxiliary Heat Lockout Temperature only the compressor operates below the balance point temperature setup function 0360 only the fossil fuel operates Between the balance point temperature and auxiliary heat lockout temperature the compressor will operate However the fossil fuel will turn on if the room temperature droops approximately 2 F below t...

Page 23: ...If installer setup ISU 176 is configured for one or more stages of Auxiliary Heat e If installer setup ISU 176 is configured for two stages of Auxiliary Heat f If thermostat is controlling backup heat see temperature lockout section page 22 35 M19950 COMPRESSOR LOCKOUT TEMPERATURE AUXILIARY LOCKOUT TEMPERATURE COMPRESSOR ONLY BOTH COMPRESSOR AND AUXILIARY HEAT AUXILIARY ONLY 50 OUTDOOR TEMPERATURE...

Page 24: ...key for approximately five seconds until the screen changes 3 Release the center blank key when the screen on the thermostat matches the screen below Table 7 Indoor Air Quality Operation System Setting Call For Action Last call Energize terminals Heat Cool Auto Humidification HUM1 and HUM2 Closea Nothinga None Auto Dehumidification Nothingb DHM1 and DHM2 closee None Auto Dehumidification Nothingb ...

Page 25: ...h each key press Backlight is on continuously 320 Temperature Indication Scale 0 1 Fahrenheit temperature display Celsius temperature display 330 Daylight Saving 0 1 2 Disabled Enabled US 1987 Enabled US 2007 400 Ventilation control 0 1 2 No ventilation Ventilation on at all times Ventilation on except during sleep period DONE O MON WED THU FRI SAT A AT SUN USER SETUP NUMBER CURRENT SETTING ADVANC...

Page 26: ... on the screen to indicate changes are being saved to the day s modified NOTE To set a Program Schedule for the remaining days of the week repeat steps 1 9 Example If Mon Fri was selected first go back and repeat steps 1 9 for Sat and Sun 10 To exit schedule without saving changes press Cancel key any time Cancel a Schedule Period 1 Press Sched key 2 Press Edit key 3 Select the Day s of the week d...

Page 27: ...e Fan circulates randomly for approximately 35 of time until the Auto position is selected aAuto Override resumes the Fan Program in each schedule period Wake Leave Return and Sleep SCHED SCHED HOLD HOLD CLOCK SCREEN DONE WAKE LEAVE RETURN SLEEP CANCEL MON TUE WED THU FRI SAT SUN AM PM PM FAN AUTO SYSTEM EM HEAT HEAT OFF COOL AUTO CANCEL PERIOD HEAT COOL Following Schedule Inside Set To OK TO PICK...

Page 28: ...e thermostat shows Following Schedule on the screen to indicate that Temporary Hold has ended PERMANENT HOLD Permanent Hold changes the temperature setting until Permanent Hold is cancelled 1 Press Hold key Permanent Hold appears on the screen 2 Press Up or Down arrow next to the temperature you want to set during Hold 3 Press Cancel key to cancel Permanent Hold and resume the schedule VACATION HO...

Page 29: ...creen 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 Screen Locked on the screen In this mode all keys are locked except the Temperature Up and Down arrow keys User can change temperature up or down but cannot change schedule settings Temporary temperature change lasts until next scheduled period and tha...

Page 30: ...r calendar days NOTE When using run time days the days are counted as fan run time so anytime the fan is running the reminder is counting that time against the number of days selected The remaining days can be viewed by pressing the More key the remaining days can be edited using the More key or from the Installer Setup To view or reset the reminder before it expires follow these steps using the M...

Page 31: ...the reminder before it expires follow these steps using the More key 1 Press the More key until the UV Lamp change reminder appears on the screen This is the number of run time days remaining on the UV Lamp reminder 2 Press the Edit key 3 Use the Up and Down keys to change the number of cal endar days 4 Press the Done key to go back to the viewing screen 5 Press the Reset key to activate the new n...

Page 32: ...s a deviation based on the length of error time The sum of the two errors is the P I error The cycle rate used to reach and maintain the setpoint temperature is computed using the P I The addition of the integral error is what differentiates the thermostat from many other electronic and mechanical thermostats See Fig 33 Fig 33 Proportional temperature control versus P I temperature control Minimum...

Page 33: ...ote inside temperature is displayed on the thermostat home screen as Inside Temperature The thermostat internal temperature sensor is not used When SCHED SCHED HOLD HOLD CLOCK SCREEN DONE WAKE LEAVE RETURN SLEEP CANCEL MON TUE WED THU FRI SA SUN Inside M23679 SCHED HOLD CLOCK SCREEN MORE MON TUE WED THU FRI SAT A AT SUN AM FAN AUTO SYSTEM HEAT Following Schedule Inside Outside Set To M22453 Table ...

Page 34: ... active the condition causing the error is still present it will be displayed in the time field on the thermostat home screen The home screen can display up to 5 active errors The time field will flash the time Err and a list of up to 5 error codes beginning with the most critical and repeat until the errors have been remedied A log of error codes can be viewed at the end of the installer setup af...

Page 35: ...tion is not set to Heat or Cool Set system selection to correct setting Heating or cooling does not come on and thermostat is calling for heat or cool Heating or cooling equipment is not operating Check Wiring Check installer setup number 172 and verify the correct system type is chosen Verify operation of equipment in system test mode Heat does not turn on Heat On is solid in the display Heating ...

Page 36: ...n thermostat Thermostat has detected an error on the communication bus Refer to error code section for more information Fan does not turn on in a call for heat electric furnace Fan Control in Heating is set to Gas or Oil Furnace Setting 0180 Set Fan Control in Heating to Electric Furnace Setting 0180 Heat pump puts out cool air in the heat mode and warm air in the cool mode Changeover Valve Instal...

Page 37: ...the temperature setting is not set below room temperature Set the system setting to Cool and set the temperature setting below the room temperature Wait is in the display Compressor minimum off timer is active Wait up to five minutes for the cooling or heating heat pump equipment to turn on Screen Locked appears on the screen and all or some of the keys do not respond The keypad is fully or partia...

Page 38: ...n defrost ER150C2004 energy recovery ventilator 150cfm with no defrost ER200B2006 heat recovery ventilator 200cfm with built in defrost ER200C2004 heat recovery ventilator 200cfm with no defrost EARD5 5 round damper NC Power Open Spring Close EARD6 6 round damper NC Power Open Spring Close EARD7 7 round damper NC Power Open Spring Close EARD8 8 round damper NC Power Open Spring Close Table 19 Comm...

Page 39: ...VISIONPRO IAQ TOTAL HOME COMFORT SYSTEM 39 68 0287 1 ...

Page 40: ...h 35 Dynamic Drive Golden Valley MN 55422 Toronto Ontario M1V 4Z9 customer honeywell com VISIONPRO IAQ TOTAL HOME COMFORT SYSTEM U S Registered Trademark 2006 Honeywell International Inc US Patent No 6 208 263 6 373 376 6 448 901 6 926 076 7 044 397 D509151 H25192 H25193 and other patents pending 68 0287 1 M S Rev 10 06 ...

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