Mode d’emploi Honeywell T140 Thermostat

Mode d’emploi

T140 Digital Thermostat

Installation and User Guide

Installation

Must be installed by a competent person. To ensure

your safety, make sure the mains power is switched OFF

before accessing wiring.

1.1 Guidelines

1

1.2-1.5m

Bk-electronic GmbH

Hardhofweg 40

74821 Mosbach

Germany

For assistance with this product please visit

livewell.honeywellhome.com

1.2 Thermostat Wiring

For a 2-wire connection: no polarity.

Direct wiring to the circulator

Connection to the thermostat terminals of a furnace

For a 3-wire connection: observe the polarity

Wiring to a power-operated mixing control valve

1 Loosen the captive screw holding the faceplate to the mounting plate.

2 Pull the lower part of the faceplate to remove it from the mounting plate.

3 Loosen the screw (captive) holding the wire cover and remove the wire cover.

4 Pull wires through the hole in the mounting plate and secure the mounting plate to the wall

(or onto an electrical box for line voltage wiring) using the enclosed wall anchors and screws.

5 Wire the thermostat to the heating system and, if necessary, connect the remote input.

6 Once wiring is complete, re-install the wire cover.

7 Use the switches located at the back of the faceplate to configure your thermostat according to your application.

8 Install the batteries.

9 Mount the faceplate on the mounting plate and tighten the screw.

1.3 Remote Input Wiring

The thermostat is equipped with a remote input

which allows connection of a telephone controller or

a home automation system. When a signal is received

through this input, the thermostat will automatically

switch from normal operating mode to Vacation

mode. For details on operating the telephone

controller, refer to the instruction manual.

1.4 Configure the Thermostat

The switches are located on the back of the faceplate. Default settings are highlighted.

1. If you change from °C to °F (or vice versa), you will need to reprogram your Comfort, Economy and Vacation settings.

2. For hot water installations, it is recommended to enable this option to activate the pump for one minute every

24 hours to prevent pump seizure.

1.4.1 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.

Ideal for:

• Radiant or convection electrical heating system

• Circulator control in a hot water system

• Electrical hot-air furnace

• Conventional gas or fuel hot-air furnace

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.

1

6 7 8 9

2

3

4 5

Furnace

Relay

240 V

240 V

Home automation system

or telephone controller

T140

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

Cycles EUROPE Position

5 minutes Not recommended for furnaces

10 minutes Gas or electric wall furnace

15 minutes Fuel or gas floor furnace, forced air heating

20 minutes Commercial unit

Technical Specifications

Power supply: 2 AA or LR6 alkaline batteries 1.5 V

Max. resistive load: 5 A @ 240 VAC / 5 A @ 30 VDC

Max. inductive load: 2 A @ 240 VAC / 2 A @ 30 VDC (P.F. = 0.4)

Remote input: 12 VDC, ± 10%, 2.5 mA

Certifications: CE, c UL us

Control device: Electronic

Automatic action: Type 1 B

Number of programs: 4 programs / day, total of 28 programs

Storage temperature: 20°C to 50°C (4°F to 122°F)

Operating temperature: 0°C to 50°C (32°F to 122°F), 95% R.H.

Temperature setting range: 5°C to 30°C (40°F to 85°F)

Temperature display resolution: 0.1 degree

Temperature reading accuracy: ± 0.5°C (± 0.9°F)

Software: Class A

Protection class: II

Protection degree: IP 40

The terminals are designed to handle a cross-section of wire measuring up to 2.5 mm2 (14 AWG).

Basic Configuration

2.1 Set the Time and Day

 Set the time, using the Hour and Minute buttons.

2 Set the day, using the Day button.

2.2 Configure the Setpoints

2.2.1 Comfort and Economy

These setpoints are associated to the schedule’s programs and are pre-programmed as follows:

Comfort R 20°C (68°F) Programs 1 and 3

Economy  18°C (64°F) Programs 2 and 4

2.2.2 Vacation

This pre-programmed setpoint is used when the Vacation mode is activated.

Vacation 10°C (50°F)

Select the Operating Mode

3.1 Automatic

This mode executes the schedule. To activate:

• Press Manual/Auto until is displayed. The program setpoint icon is displayed.

3.1.1 Temporary Bypass

When in Automatic mode, you can temporarily bypass the current program setpoint until

the beginning of the next program. To bypass:

• Set the desired temperature pq OR quickly press R or  to use a pre-defined setpoint.

3.2 Manual

J

This mode allows you to maintain a constant temperature.

• Press Manual/Auto until is displayed.

• Set temperature pq OR quickly press R or  to use a pre-defined setpoint.

3.3 Vacation

Maintains a specific temperature when away for a prolonged absence (e.g. vacation).

• From the thermostat, quickly press to activate.

Program Your Schedule

The thermostat allows four setting changes for each day of the week. There are no pre-set programs. Your

heating system switches betwwen the Comfort setpoint and the Economy setpoint according to the times you

would have set.

1.4.2 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. For example, if the

temperature setpoint is 20°C, the heating system will turn on at 19.5°C and turn off at 20.5°C.

Span Hot Water Heating Forced Air Heating Position

0,3°C

Not recommended

for furnaces

Not recommended for

central units

0,4°C Gas or electric wall furnace

Radiant or convection

electric heating

0,5°C

Fuel or gas floor furnace,

forced air heating

Central heating

0,6°C Commercial unit

1.5 Install the Batteries

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

J

and the ambient temperature. The current setpoint is 20°C.

1.5.1 Replacing the batteries

The thermostat will display an icon indicating that the batteries must be replaced. This icon

will be displayed for 60 days; after this delay, the thermostat will shut down the heating unit.

The time and programming are saved for 15 seconds when replacing the batteries.

4.1 Set or Modify the Programs

1 Press Program. The screen displays MO and PROG 1.

2 Press Day to select the day (hold for 3 seconds to select all days of the week).

3 Press Hour and Minute to set the start time. To clear an entry, press Clear, the time zone displays --:-- when

the program is inactive.

 Press Program to select the program number (2, 3 or 4).

5 Repeat steps 3 and 4 for remaining programs.

6 Press Manual/Auto to exit.

To erase program for desired day:

1 Press Program until desired program is selected.

2 Press Day to select desired day.

3 Press Clear to erase the time (--:--).

4 Press Manual/Auto to exit.

2

3

4

5

2.2.3 To Modify a Setpoint

 Set the temperature using pq.

2 Press and hold one of the setpoint buttons (R or  or ) until the icon is displayed

on the screen (approx. 3 seconds).

2.3 View the Current Setpoint

To view the current setpoint, quickly press once one of the arrow buttons pq.

The screen displays the setpoint; the arrow indicates a setpoint.

Programs Associated Setpoint Time

PROG 1

R (Comfort)

Wake-up

PROG 2

 (Economy)

Leave

PROG 3

R (Comfort)

Return

PROG 4

 (Economy)

Sleep

Connection to telephone controller

or a home automation system

© 2019 Resideo Technologies, Inc.

This product manufactured by Resideo and its affiliates.

The Honeywell Home trademark is used under license

from Honeywell International Inc. All rights reserved.

EN + DE

3300057ED02

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