TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN POWER PANEL TO AVOID ELECTRICAL SHOCK.
Installation should be carried out by an electrician.
LOW VOLTAGE < 30 V: no polarity
LINE VOLTAGE 120 to 240 VAC
Must be installed onto a certified electrical box.
For a 2-wire connection: no polarity
For a 3-wire connection: observe the polarity
The TH140 is equipped with a remote input which allows connection of a telephone controller (optional Aube CT240), a home automation system or any other remote control system. When a signal is received through this input, the TH140 will automatically switch from normal operating mode to Vacation mode, or vice versa when the signal is removed.
Connect CT240 terminals A and C to TH140 terminals X and C. You must respect the polarity.
For details on operating the telephone controller, refer to the instruction manual.
Connect the TH140 to the home automation system as displayed in the wiring diagram.
The switches are located on the back of the faceplate. Default settings are highlighted.
Switch | Description | UP | DOWN |
1 & 2 | Cycles (proportional) | 15 min (see 1.4.1) | |
Span (conventional) | 0.5°C (0.9°F) (see 1.4.2) | ||
3 | Clock display | 12H | 24H |
4 | Temperature display 1 | °F | °C |
5 | Temperature control mode | Proportional (see 1.4.1) | Conventional (see 1.4.2) |
6 | Pump protection 2 | Deactivate | Activate |
Proportional Adaptive Mode (switch #5)
This mode analyzes previous cycles to define the the next duty cycle.
This control mode guarantees optimal temperature control based on the system’s capacity. To extend the life of the system, a minimum On/Off time of 10% of the cycle has been implemented. For example with a 15-minute cycle, the system would not start or stop for less than 1.5 minutes.
Ideal for:
Not recommended for:
Note: In these last two cases, conventional mode with anticipation is recommended.
Heating Cycle Selection (switches #1 and #2)
Select the cycle using switches #1 and #2. Short cycles help eliminate temperature variations, thus increasing user comfort. Since shorter cycles can lead to premature system wear, it is important to select the temperature control cycles appropriate to your heating system. In general, the bigger your heating unit is, the longer the cycles should be.
Cycles | EUROPE | AMERICA | Position |
5 minutes | Not recommended for furnaces | Not recommended for central units | |
10 minutes | Gas or electric wall furnace | Radiant or convection electric heating | |
15 minutes | Fuel or gas floor furnace, forced air heating | Central heating | |
20 minutes | Commercial unit |
Conventional mode with anticipation (switch #5)
This mode is compatible with all heating systems.
Programmable Span Selection (switches #1 and #2)
Select the span using switches #1 and #2. The default temperature span is 0.5°C (0.9°F). For example, if the temperature setpoint is 20°C (68°F), the heating system will turn on at 19.5°C (67.1°F) and turn off at 20.5°C (68.9°F).
Span | Hot Water Heating | Forced Air Heating | Position |
0,3°C (0,5°F) | Not recommended for furnaces | Not recommended for central units | |
0,4°C (0,7°F) | Gas or electric wall furnace | Radiant or convection electric heating 1 | |
0,5°C (0,9°F) | Fuel or gas floor furnace | Central heating | |
0,6°C (1,1°F) | Commercial unit |
When you first install the batteries, the unit runs a sequence of tests and a complete reset to zero. The screen should display 0:00 MO
The ambient temperature could be higher if you are holding the TH140 in your hands. It will return to normal about one hour after installation.
Replacing the batteries
The TH140 will display an icon indicating that the batteries must be replaced. This icon will be displayed for 60 days; after this delay, the TH140 will shut down the heating unit.
The time and programming are saved for 15 seconds when replacing the batteries.
Basic Configuration
Note: You may program the thermostat while holding it in your hands or when it is mounted on the mounting plate.
Set the Time and Day
Comfort and Economy
These setpoints are associated to the schedule’s programs and are pre-programmed as follows:
Comfort
Economy
Vacation
This pre-programmed setpoint is used when the Vacation mode is activated.
Vacation
To Modify a Setpoint
View the Current Setpoint
To view the current setpoint, quickly press once one of the arrow buttons ▲▼.
The screen displays the setpoint; the arrow indicates a setpoint.
The TH140 offers three operating modes:
This mode executes the schedule. To activate:
Temporary Bypass
When in Automatic mode, you can temporarily bypass the current program setpoint until the beginning of the next program. To bypass:
This mode allows you to maintain a constant temperature.
To activate this mode:
Maintains a specific temperature when away for a prolonged absence (e.g. vacation).
Note: When the Vacation mode is activated remotely, it can only be deactivated remotely.
Note: For details on how to activate the Vacation mode using a telephone, refer to the CT240 Instruction Manual.
The TH140 allows four setting changes for each day of the week. There are no pre-set programs. Your heating system switches between the Comfort setpoint and the Economy setpoint according to the times you would have set.
For example, enter each day the time at which you wake up (PROG 1), the time you leave for work (PROG 2), the time you return home (PROG 3) and the time you go to bed (PROG 4):
Programs | Associated Setpoint | Time |
PROG 1 | Wake-up | |
PROG 2 | Leave | |
PROG 3 | Return | |
PROG 4 | Sleep |
Note: For temperature increases (PROG 1 and 3), allow at least 15 minutes per 1°C (2°F). For example, if you have lowered the temperature by 3°C (6°F) while you sleep and you wake up at 7 a.m., change the setting at 6:15 a.m.
Programming Example
PROG | MON | TUE | WED | THU | FRI | SAT | SUN | |
1 | 6:00 | 6:00 | 6:00 | 6:00 | 6:00 | 6:00 | 6:00 | |
2 | 8:30 | 8:30 | 8:30 | 8:30 | 8:30 | –:– | –:– | |
3 | PM 4:00 | PM 4:00 | PM 4:00 | PM 4:00 | PM 4:00 | –:– | –:– | |
4 | PM 11:00 | PM 11:00 | PM 11:00 | PM 11:00 | PM 11:00 | PM 11:00 | PM 11:00 |
To program this schedule:
To erase programs 2 and 3 for Saturday and Sunday:
Resideo warrants this product, excluding battery, to be free from defects in workmanship or materials, under normal use and service, for a period of three (3) years from the date of first purchase by the original purchaser. If at any time during the warranty period the product is determined to be defective due to workmanship or materials, Resideo shall repair or replace it (at Resideo’s option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
(ii) call Resideo Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Resideo Return Goods, 1985 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Resideo that the defect was caused by damage which occurred while the product was in the possession of a consumer.
Resideo’s sole responsibility shall be to repair or replace the product within the terms stated above.
RESIDEO SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY RESIDEO MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE THREE YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Resideo Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502.
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
33-00055—03 M.S. Rev. 05-20 | Printed in United States
© 2020 Resideo Technologies, Inc. All rights reserved. The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.
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