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Honeywell TH9421 Support Question

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Question posted by mtjsky on March 13th, 2013

Hello! Why The Eim(th5421) W1(o/b) Termianl Can Not 24v In Heat Mode? Thanks

WHy the eim(th5421) w1(o/b) termianl can not 24v in heat mode?

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Related Honeywell TH9421 Manual Pages

Owner's Manual - Page 3

CAUTION: EQUIPMENT DAMAGE HAZARD. Table of contents VisionPRO® IAQ About your new thermostat Programming at a glance 2 Quick reference to controls 3 Quick reference to status ...Ventilation control 19 Appendices Advanced functions 20 In case of difficulty 27 Limited warranty 29 This thermostat is ready to go . To prevent possible compressor damage, do not operate cooling system when...

Owner's Manual - Page 4

Select fan setting: Preset to Heat See page 7 4. Set humification, dehumidification & ventilation controls, if applicable See pages 17-19 ONE-TOUCH TEMP CONTROL: You can override the program schedule at 10 pm See pages 8-11 5. Operating Manual About your new thermostat Your new thermostat is pre-programmed and ready to go to bed at...

Owner's Manual - Page 5

... set program schedule (see page 9) MON TUE WED THU FRI SAT SUN OK TO PICK MULTIPLE DAYS 70 FAN Inside AUTO 70 Set To SYSTEM HEAT 6:01 AM Following Schedule SCHED HOLD CLOCK SCREEN MORE VisionPRO® IAQ Press to adjust temperature settings (see pages 9-11) Press for more options Press...

Owner's Manual - Page 6

...System setting Current time WED 70 FAN Inside AUTO 70 Set To SYSTEM HEAT 6:01 AM Following Schedule Recovery 55 Humidity SCHED HOLD CLOCK SCREEN MORE Other display ...messages: • Cool On: Cooling system is activated • Heat On: Heating system is activated • Aux Heat On: Auxiliary heating system is activated • Wait: Compressor protection activated (see page 13...

Owner's Manual - Page 8

...If you select On or Circ, the setting you select will run time with the heating or cooling system. Press FAN to the fan schedule (see page 28 for different time... 35% of the time, not counting any run the fan schedule. Operating Manual Fan setting WED 70 FAN Inside AUTO SYSTEM HEAT 6:01 AM 70 Set To Following Schedule SCHED HOLD CLOCK SCREEN MORE Press FAN Note: If a fan schedule is on ...

Owner's Manual - Page 9

... 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 for heat pumps with auxiliary heat): Thermostat controls Auxiliary...

Owner's Manual - Page 11

... Press other time periods (LEAVE, RETURN, SLEEP) to set time and temperatures for program period to start Note: You can press CANCEL PERIOD to set Heat and Cool temperature for selected day(s). 4. 70 FAN Inside AUTO 70 Set To To adjusWEDt program Following Schedule schedules VisionPRO® IAQ 67:000 FAN...

Owner's Manual - Page 12

... at any time, press CANCEL (or SCHED). Operating Manual Program schedule override (temporary) Adjust temperature WED 70 FAN Inside AUTO SYSTEM HEAT Hold Temperature Until 8:00AM 73 Set To HEAT Heat On 78 COOL SCHED HOLD CLOCK SCREEN MORE CANCEL Press to set . The program schedule will resume and set the temperature to...

Owner's Manual - Page 13

... schedule 11 69-1815EFS-06 Program schedule override (permanent) VisionPRO® IAQ Press HOLD Adjust temperature WED 70 FAN Inside AUTO SYSTEM 73 Set To Heat On HEAT 8:00 AM Permanent Hold SCHED HOLD CLOCK SCREEN MORE CANCEL Press HOLD to permanently adjust the temperature.

Owner's Manual - Page 14

... 6:00PM SCHED HOLD CLOCK SCREEN MORE WED CANCEL 2 Press to set time for 70 55 FAN Inside schSeedt Tuole to resume 3 APUrTOess HOLD twice SYSTEM HEAT Hold Temperature Until 14 DAYS SCHED HOLD CLOCK SCREEN MORE CANCEL 4 Press to select number of days 69-1815EFS-06 This feature can suspend the...

Owner's Manual - Page 15

... this feature does not work, contact your house and possessions while you leave the house, press the HOLD button three times to Auto, the thermostat automatically selects heating or cooling depending on screen. Flashing message: Reminder to prevent equipment damage. Special features VisionPRO® IAQ Auto Changeover: When set . After replacement, press...

Owner's Manual - Page 16

... or unlock the screen, see advanced function 0670 on page 26. 69-1815EFS-06 14 Operating Manual Screen lock WED 70 FAN Inside AUTO SYSTEM HEAT 6:00PM SCREEN LOCKED 70 Set To Following Schedule 43 SCHED HOLD CLOCK SCREEN MORE See advanced function 0670 (page 26) for several seconds if a locked...

Owner's Manual - Page 17

..., or press SCREEN again if you require more time for 30 seconds so 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

... 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 ...an average of the sensor. Operating Manual Optional remote sensors WED 70 FAN Inside AUTO SYSTEM HEAT 6:01 AM 70 Set To Following Schedule Outside 43 SCHED HOLD CLOCK SCREEN MORE Inside ...

Owner's Manual - Page 19

... humidity 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

Owner's Manual - Page 20

If you don't have a dehumidifier, the thermostat activates the air conditioner to exit without saving changes. Press DONE ... house dehumidifier (not present when dehumidifying with A/C). 69-1815EFS-06 18 If installed to control a dehumidifier, the thermostat can activate it as 3°F lower than your temperature setting). Operating Manual Dehumidification control Press to select Auto or...

Owner's Manual - Page 21

You can still be requested by the installer, the thermostat will turn off /on the automatic ventilation only. Ventilation can set the timer to ventilate from 20 to 180 minutes, in 20-minute increments. Ventilation ...

Owner's Manual - Page 22

Operating Manual Advanced functions 1 Press SYSTEM. TUE 70 FAN Inside AUTO SYSTEM HEAT 6:01 AM SCHED HOLD 2 Press and hold blank center key until the display changes. ... SCREEN MOR2E1-26). 69-1815EFS-06 4 Press DONE to exit & save changes. 20 TUE 70 FAN AUTO Inside SYSTEM HEAT 6:01 AM 70 Set To DONE TUE 70 FAN Inside FAuUTnOction CANCEL 70 Set To Setting 0120 DONE Press s/t to select...

Owner's Manual - Page 29

...is blank • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling system is on page 22 for backlight options. See Advanced function 0280 on . •...heating and cooling temperatures are set to acceptable ranges: • Heat: 40° to 90°F (4.5° to 32°C) • Cool: 50° to 99°F (10° to make sure the thermostat...

Owner's Manual - Page 30

... is closed securely. • If "Wait" is displayed, the compressor protection timer is scheduled for the system to Heat. Make sure the temperature is set lower than the Inside temperature. Auto indicates the thermostat is set system to Cool. Make sure the temperature is following the programmed fan setting. Display shows Fan...