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Setting
I cannot change the Setting of the current day of the week For example- today is Thursday, but therm...
I cannot change the Setting of the current day of the week For example- today is Thursday, but therm...
(Posted by Mikenoryzhny 7 years ago)
Honeywell Rth7400 Thermostat What Is Heat Cycle
(Posted by ugAvasar 9 years ago)
Can I Screen Lock Rth7400
(Posted by miccisa8 9 years ago)
How Do I Reset The Date On My Honeywell Thermostat Rth7400
(Posted by jmauadan 9 years ago)
How To Instal A Rth7400d1008 Honeywell Thermostate
(Posted by Actopathus 9 years ago)
Popular Honeywell RTH7400 Manual Pages
Owner's Manual - Page 1
Operating Manual
RTH7400/RTH7500 Series
Programmable Thermostat
69-2222EF-03
Owner's Manual - Page 2
... and save these instructions.
® U.S. Perchlorate Material-special handling may contain Perchlorate material. All rights reserved.
Registered Trademark. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C). Patents pending. This manual covers the RTH7400 and RTH7500 models.
(Pull thermostat from wallplate and...
Owner's Manual - Page 3
... to status display 5
Programming & Operation Clock setting 6 Fan setting 7 System setting 8 Using program schedules 9 Program schedule overrides 13 Auto Changeover 15 Filter reminder 17 Special features 18
RTH7400/RTH7500 Series
Appendices Battery replacement 19 Customer assistance 20 In case of difficulty 21 Limited warranty 23
This thermostat is pre-programmed and ready to go...
Owner's Manual - Page 4
... designed to -use thermostat. Features
• Easy-to-follow menu programming. • One-touch temp control overrides program schedule at any time. • Precise comfort control keeps temperature within 1°F of the level you set. • Change/check reminder lets you many years of reliable service and climate control. Operating Manual
About your new...
Owner's Manual - Page 5
... CONTROL: You can override the program schedule at work or asleep (assumes you have to do is set the time and day. RTH7400/RTH7500 Series
Your new thermostat is pre-programmed and ready to go ! This thermostat is ready to go .
Then check the settings below and change , see pages 13-14).
3
69-2222EF-03 Select fan...
Owner's Manual - Page 8
...
69-2222EF-03
Done M28080
To set the current time display, press CLOCK, then press s or t to exit without changing the time).
Note: To change the current week day display, see System Setup in your Installation Guide.
6
Note: The real-time clock should never require adjustment since it automatically updates for daylight savings time, and...
Owner's Manual - Page 10
...for heat pumps with auxiliary heat): Thermostat controls Emergency and Auxiliary Heat. Compressor is locked out.
Operating Manual
System setting
Press SYSTEM & FAN
System & Fan...Thermostat controls only the heating system. • Cool: Thermostat controls only the cooling system. • Auto: Thermostat automatically selects heating or cooling depending on how your thermostat was installed.
...
Owner's Manual - Page 12
We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each time ...62 ° 85 ° 70 ° 78 ° 70 ° 78 ° 62 ° 82 ° 62 ° 82 °
69-2222EF-03
10 Operating Manual
Energy saving settings for maximum cost savings
This thermostat is pre-set with energy saving program...
Owner's Manual - Page 13
...
11
69-2222EF-03 Press NEXT STEP, then s or t to set Cool temperature for selected days.
4. Repeat steps 1-6 to program other time periods (LEAVE, RETURN, SLEEP), then press DONE.
7. Press SELECT DAY to
62 Heat
Next Step
Done
1.
RTH7400/RTH7500 Series
To adjust program schedules (RTH7400 only)
Press SCHEDULE
System & Fan
Schedule
Clock & More
Press...
Owner's Manual - Page 15
... time, press USE SCHEDULE.
13
69-2222EF-03
The new temperature will temporarily override the temperature setting for the current time period. Program schedule override (temporary)
RTH7400/RTH7500 Series
Mon
62
System Heat
System & Fan
Adjust temperature
Temporary Set to
68 6:08 AM Heat On
Fan Auto
Use Schedule
Clock & More
Press USE SCHEDULE to...
Owner's Manual - Page 18
...
Cancel
M27486
The triangle indicates the cool temperature is lowering the heat setting down to maintain 3 degrees between heat and cool settings. Operating Manual
AubtooutCyhoaunrgneeowvetrhermostat
If the cool temperature is lowered to where it gets close to the heat setting, an arrow next to heat will show the thermostat is increasing to maintain a 3-degree separation.
Owner's Manual - Page 19
... reminder interval
60
Days
Reset
Next
Done
If activated during installation, the furnace filter reminder alerts you when it expires: 1. AFibltoeurtryeomuirndnewr thermostat
RTH7400/RTH7500 Series
Press RESET after changing the filter, to restart the timer. To reset the reminder interval before it is time to replace your filter. Press RESET. 3. M28090
17
69-2222EF-03 Press...
Owner's Manual - Page 20
... time to 6 am , so the temperature is 70° by the time you set to Auto, the thermostat automatically selects heating or cooling depending on the same day.
Operating Manual
Special features
Smart Response® Technology: This feature allows the thermostat to "learn" how long the furnace and air conditioner take to reach programmed...
Owner's Manual - Page 21
... wired to run on AC power when installed.
Install fresh batteries immediately when the LO BATT warning begins flashing. Insert 2 fresh AA alkaline batteries
M28101
19
69-2222EF-03 The warning flashes about 30 days before leaving home for more than a month. Battery replacement
RTH7400/RTH7500 Series
Grasp thermostat and pull to remove from wallplate
M28103
Batteries...
Owner's Manual - Page 23
...installed (see page 19). not change)
21
69-2222EF-03
temperature will • Cool: 50° to 99°F (10° to 32°C). Most problems can be corrected quickly and easily. AInbcoausteyoouf rdnifefiwcutlhtyermostat
RTH7400/RTH7500 Series
If you have difficulty with your thermostat...; If thermostat is battery powered, make sure fresh AA alkaline
batteries are set to acceptable...
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