Home » Honeywell » Thermostats » Honeywell TH9421

Honeywell TH9421 Support Question

Find answers below for this question about Honeywell TH9421.
Need a Honeywell TH9421 manual? We have 1 online manual for this item!

Honeywell Overview Questions Manuals Reviews Videos Research

Question posted by terrivarneyswet on July 9th, 2015

I Need Wire Diagram For Th9421c 1004 Thormostat

The person who posted this question about this Honeywell product did not include a detailed explanation. Please use the "Request More Information" button to the right if more details would help you to answer this question.

I Know the Answer!

I have the same question
Request More Information

Current Answers

Answer #1: Posted by TommyKervz on July 9th, 2015 11:29 AM

This answer was accepted by the poster of the original question.

TommyKervz

Member since:
January 10th, 2013

Points: 17,776,813

1,090
points

You can request the diagram using the form below.

https://yourhome.honeywell.com/home/Applications/ContactUs.aspx

Hope that is helpful.
Kervz at www.satechhelp.co.za

Related Honeywell TH9421 Manual Pages

Owner's Manual - Page 2

...to the thermostat, always press keys with this product please visit http://yourhome.honeywell.com or call Honeywell Customer Care toll-free at 1-800-468-1502 Read and save these instructions. ® U.S. Need Help? ...Material-special handling may contain Perchlorate material. This thermostat contains a Lithium battery which may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate....

Owner's Manual - Page 3

Table of contents VisionPRO® IAQ About your new thermostat Programming at a glance 2 Quick reference to controls 3 Quick reference to status display......... 4 ...Humidity control 17 Ventilation control 19 Appendices Advanced functions 20 In case of difficulty 27 Limited warranty 29 This thermostat is below 50˚F (10˚C). 1 69-1815EFS-06 See page 2 to go ! To ...

Owner's Manual - Page 4

... settings below and change if needed: 1. Program schedules: Preset to energy-saving levels while you're at work or asleep (assumes you wake at 6 am, leave at 8 am, return at 6 pm and go . Just set the time and day. Operating Manual About your new thermostat Your new thermostat is pre-programmed and ready...

Owner's Manual - Page 9

... VisionPRO® IAQ Press the SYSTEM button to select, then press DONE: • Heat: Thermostat controls only the heating system. • Cool: Thermostat controls only the cooling system. • Off: Heating and cooling systems are off. • Auto: Thermostat automatically selects heating or cooling depending on the indoor temperature. • Em Heat (only...

Owner's Manual - Page 10

This thermostat is pre-set to program your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each day. ...

Owner's Manual - Page 15

...174; IAQ Auto Changeover: When set . Flashing message: Reminder to Auto, the thermostat automatically selects heating or cooling depending on screen. Southern Away Dehumidification: Your system may..., press RESET to prevent equipment damage. Adaptive Intelligent Recovery: This feature allows the thermostat to "learn" how long the furnace and air conditioner take to activate this feature...

Owner's Manual - Page 17

... use the damp cloth to resume normal operation, or press SCREEN again if you can clean the screen without changing any liquid directly on the thermostat. WED Screen cleaning FAN 70 70 AUTO Inside SCREEN LOCKED Set To Press SCREEN Following Schedule 6:00PM SCHED HOLD CLOCK SCREEN MORE Screen lock timer...

Owner's Manual - Page 18

... one indoor sensor is installed, the display shows the indoor temperature at the location of temperature readings from all sensors or an average between the thermostat and the sensor(s). 69-1815EFS-06 16 If an indoor remote sensor is installed, the display shows an average of the sensor. Operating Manual Optional...

Owner's Manual - Page 19

... s or t to set the humidity and Frost Control level. Wait at least 1 day before adjusting the frost level again. Once frost no longer appears, the thermostat will not be displayed. 17 69-1815EFS-06 Humidification control VisionPRO® IAQ Set Frost Control & humidity level 32 Inside DONE Press to save and...

Owner's Manual - Page 20

If installed to control a dehumidifier, the thermostat can activate it as 3°F lower than your temperature setting). Press DONE to save & exit CANCEL Press MORE until the dehumidifier screen is displayed, then press s or t to reduce humidity (may cool as much as needed to exit without saving changes. Note: Auto/Off only present...

Owner's Manual - Page 21

You can still be requested by the installer, the thermostat will turn off /on the automatic ventilation only. To turn off the ventilator, select 0....t to set the ventilation timer. Press DONE to save & exit VisionPRO® IAQ You can ventilate your home as needed. If programmed for auto-ventilation by using the timer when set to Off. 19 69-1815EFS-06 Ventilation control Press to ...

Owner's Manual - Page 24

Thermostat is non-programmable. 4 Program schedule is on low intensity, full bright after keypress 69-1815EFS-06 22 Restore Energy Star® schedule Function 0165 Press s/t ...

Owner's Manual - Page 25

...; IAQ Temperature format (°F/°C) Function 0320 Press s/t to set the temperature display format: Options: 0 Fahrenheit 1 Celsius Daylight savings time on/off Function 0330 The thermostat is pre-programmed to automatically adjust to daylight savings time (2007 and beyond, for areas that do not use the new 2007 DST calendar) 2 On...

Owner's Manual - Page 29

...: 40° to 90°F (4.5° to 32°C) • Cool: 50° to 99°F (10° to make sure the thermostat is closed securely. Your equipment may need service or repair. 27 69-1815EFS-06 In case of difficulty VisionPRO® IAQ If you have difficulty with your contractor. See...

Owner's Manual - Page 30

... breaker and reset if necessary. • Make sure power switch at the same time • This is following the programmed fan setting. Auto indicates the thermostat is normal operation. does not respond • Press SYSTEM to set system to Heat. Wait 5 minutes for "On" during this period (see page 13). Display...