Honeywell TH115 Owners Manual

Programmable thermostat

Thermostat programmable

Termostato programable

Owner’s Guide

Guide du propriétaire

Guía para el usuario

TH115 (120S/240S/240D)

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Table of contents

Overview

Before you start..................................................2

About your thermostat........................................3

Controls..............................................................4

Display ...............................................................5

Installation

Installing the thermostat .....................................6

Wiring diagrams .................................................7

Connecting the floor sensor / remote control.....8

Setting the configuration switches......................9

Setup

Time and day........................ ... .. .......................10

Daylight Saving Time .......................................11

Floor temperature limits....................................12

Preset temperatures.........................................13

TH115 (120S/240S/240D models)

Default schedule ..............................................14

Modifying the schedule ....................................15

Operation

Running the schedule (Automatic mode).........16

Temporary override of schedule.......................16

Permanent override (Manual mode) ...............17

Before going on vacation (Vacation mode)......17

Appendices

Error messages................................................18

Technical specifications....................................19

Warranty...........................................................20

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Owner’s Guide

Before you start

Read the entire document

CAUTION:

• Installation must be carried out by a certified electrician and must comply with national and local

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electrical codes.

• To prevent severe shock or electrocution, always cut the power at the service panel before working with wiring.

• Use this thermostat for resistive loads only.

• Do NOT install the thermostat in an area where it can be exposed to water or rain.

• Avoid locations where there are air drafts (top of staircase, air outlet), dead air spots (behind a door), direct sunlight or concealed chimney or stove pipes (except for floor heating systems).

• For a new installation, choose a location about 1.5 m (5 ft.) above the floor.

• Install the thermostat on an inside wall facing the heating system (except for floor heating systems).

• Install the thermostat onto an electrical box.

• Use special CO/ALR solderless connectors if you connect the thermostat to aluminum wires.

• Keep the thermostat's top and bottom air vents (openings) clean and unobstructed at all times..

TH115 (120S/240S/240D models)

About your thermostat

The TH115 programmable thermostat has three temperature control modes:

A mode:  controls the ambient air temperature F mode:  controls the floor temperature using an external temperature sensor AF mode:  controls the ambient air temperature

See page 9 on how to change the temperature control mode setting.

Supplied Parts

• One (1) thermostat

• Two (2) mounting screws

• Four (4) solderless connectors for copper wires

* Select models only; required for floor heating applications only.

 maintains the floor temperature within desired limits using an external temperature

sensor

• One (1) floor sensor *

• One (1) flat-tip screwdriver *

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Owner’s Guide

On/Off or

On/Standby

switch

Day button

Temperature adjustment buttons

Program button

Mode selection / program exit

Preset temperature buttons (see page 13)

Backlight button

Program clear button

Hour button

Minutes button

Place at Off/Standby to cut power to the heater (e.g., in the summer). This will not affect the time and temperature settings.

When the backlight button or either of the buttons is pressed, the display illuminates for 12 seconds.

Controls

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TH115 (120S/240S/240D models)

Temperature*

Operation mode icon

(see pages 16 & 17)

Period (see page 14)

Time

Number of flames varies

according to heating intensity

Preset temperature icon (see page 13)

Appears when the setpoint

temperature is displayed*

T emperature control mode (see pages 3 & 9)

Day

* The thermostat normally displays the actual (measured) temperature. To view the setpoint temperature, briefly press

either of the buttons. The setpoint will appear for 5 seconds. To chan ge the setpoi nt tempera ture, press on e of the

buttons until the desired temperature is displayed. To scroll faster, press and hold the button.

Display

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Owner’s Guide

Wallplate

Faceplate

Installing the thermostat

 Turn the heating system off at the main electrical panel.  Loosen the bottom screw and remove the thermostat faceplate from its

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wallplate. (The screw cannot be completely removed.)

 Connect the thermostat to the load an d to the power supply (see page 7).  If the thermostat will be used in F or AF Mode (see page 9), connect the

floor sensor (see page 8).

WARNING: For floor heating applications, you must install a separate ground protection device at the main electrical panel or use a thermostat with built-in ground protection device.

 If you wish to connect a remote control device, see page 8.  Install the wallplate to the electrical box using the provided screws.  Set the configuration switches on the back of the faceplate (see page 9).  Install the faceplate back on the wall plate and tighten the screw.  Apply power to the heating system at the main electrical panel.

TH115 (120S/240S/240D models)

Power

Load

Power

Load

120S / 240D models

240S model

Black

Red

White (120S) Red (240D)

Wiring diagram

NOTE: Connect the wires using the provided solderless connectors for copper wires.

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Owner’s Guide

Floor temperature sensor

Remote control device

Connecting the floor sensor / remote control

 Insert the floor sensor cable through one of the two

openings on the wallplate and connect the sensor wires to terminals 3 and 4 (no polarity).

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• The sensor wires must not come in contact with the

electrical wires and must be routed outside the electrical box and follow the wall down to the floor.

• Position the sensor cable such that it does not come in

contact with the floor heating wires. The sensor must be centered between two floor heating wires for best temperature control.

• Do NOT staple the sensor head (the plastic end) to the

floor. Doing so might damage the sensor. Any damage might not be noticeable during testing but can become apparent several days later.

 If you wish to connect a remote control device (see

page 17), insert the wires (use 18- to 22-gauge flexible wires) through one of the two openings on the wallplate and connect them to terminals 1 and 2 (no polarity).

TH115 (120S/240S/240D models)

Set the configuration switches

Configuration switches are on the back of the faceplate.

# Configurations Up Down

1 Display format °F / 12 h °C / 24 h 2

Early Start

Temperature control mode

1. Early Start is used in Automatic mode only. When Early Start is enabled (on), the thermostat determines

when to start heating so the Comfort temperature is attained at the beginning of periods 1 and 3. When Early Start is disabled (off), heating starts only at the beginning of periods 1 and 3; thus there is a delay before the Comfort temperature is reached.

2. See page 3. To select the F Mode, place the switch in the F position. To select the AF Mode, place the switch in

the AF position and ensure that the temperature sensor is connected to the thermostat. To select the A Mode, place the switch in the AF position and ensure that the remote temperature sensor is thermostat.

Enable Disable

FAF

NOT

connected to the

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Owner’s Guide

Time and day

To set the clock and the day:

 Press the Hour button to set the hour.

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 Press the Min button to set the minutes.  Press the Day button to set the day.

 Press the Mode/Ret button to return the thermostat to normal display.

NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.

TH115 (120S/240S/240D models)

Daylight Saving Time

When the Daylight Saving Time function is enabled (On), the thermostat automatically switches to Daylight Saving Time on the second Sunday of March and to normal time on the first Sunday of November.

NOTE: The Daylight Saving Time function is disabled (default setting) when the clock loses its setting.

Daylight Saving Time function and to set the date:

To set the

 Press the Day button (3 seconds) until DLS appears on the screen.  Press either of the buttons to toggle between On (enabled) and Off (disabled).  Press the Day button briefly. The year setting is displayed.  Press either of the buttons to set the current year.  Press the Day button briefly. The month setting is displayed.  Press either of the buttons to set the current month.  Press the Day button briefly. The date setting is displayed.  Press either of the buttons to set the current date.  Press the Mode/Ret button to return the thermostat to normal display.

NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.

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Owner’s Guide

Floor temperature limits (AF mode only)

WARNING: To avoid damaging your floor, follow your floor supplier’s recommendations regarding floor temperature limits.

The minimum and maximum floor temperature limits are 5.0°C (41°F) and 28.0°C (82°F) by

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default. To modify these limits, proceed as follows:

 Switch the thermostat to Off .  Press and hold the button.  Switch the thermostat back to On.  Release the button when the minimum temperature limit (FL:LO) appears.  Set the minimum temperature limit using the buttons.  Press the button to display the maximum temperature limit (FL:HI).  Set the maximum temperature limit using the buttons.  Press Mode/Ret to return the thermostat to normal display.

NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.

TH115 (120S/240S/240D models)

Preset temperatures

The thermostat has 3 preset temperatures. Their default settings are shown in the following table.

Preset temperature Intended use Icon A/AF modes F mode

Comfort When at home 21.0°C (70°F) 28.0°C (82°F) Economy When asleep or away from home 17.0°C (63°F) 20.0°C (68°F)

Vacation During prolonged absence 10.0°C (50°F) 10.0°C (50°F)

To use a preset temperature:

Briefly press the appropriate preset temperature button ( , or ). The preset temperature will become the current setpoint and its icon will appear on the screen.

To modify a preset temperature:

 Press one of the buttons to display the desired temperature.  Press and hold the appropriate preset temperature button ( , or ) until its icon is displayed.

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Owner’s Guide

Default schedule

The schedule consists of 4 periods per day, which represents a typical work day. The Comfort ( ) preset temperature is automatically used in Periods 1 and 3 and the Economy ( ) preset temperature in Periods 2 and 4. You can program the thermost at to skip (cancel) the periods that do not apply to your situation. For

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example, you can skip periods 2 and 3 for the weekend.

NOTE: If you wish to use only 2 periods, use the following combinations: “1 and 4” or “2 and 3”. Early St art (see page 9) will not work with any other combinations.

You can have a different program every day; i.e., each period can start at a different time every day. The thermostat has been programmed with the following schedule.

Period Description Setting MO TU WE TH FR SA SU

Wake

Leave Return

Sleep

Comfort Economy

6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM

8:30 AM 8:30 AM 8:30 AM 8:30 AM 8:30 AM --:-- --:-5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM --:-- --:--

11:00 PM 11:00 PM 11:00 PM 11:00 PM 11:00 PM 11:00 PM 11:00 PM

TH115 (120S/240S/240D models)

Modifying the schedule

 Press Pgm. Period 1 for Monday is displayed.  To program another period, press Pgm to display that period.  To program another day, press Day to display that day (hold for 3 seconds to

select the entire week).

 Press Hour and Min to set the period start time, or press Clear to skip

(cancel) the period (--:-- will be displayed).

 Repeat steps 2 to 4 to program another period.  Press Mode/Ret to return the thermostat to normal display.

NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.

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Owner’s Guide

Running the schedule (Automatic mode)

In Automatic mode, the thermostat follows the programmed schedule (see page 14). To place the thermostat in this mode, press Mode/Ret until is

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displayed.

Temporary override of schedule

If you modify the setpoint temperature (by pressing the , or button) whe n the thermostat is in Automatic mode, the new temperature will be used until the

beginning of the next period. flashes during the temporary override. You can cancel the temporary override by pressing Mode/Ret.

TH115 (120S/240S/240D models)

Permanent override of schedule (Manual mode)

To place the thermostat in Manual mode, press Mode/Ret to display on the screen. In this mode, the thermostat does not follow the programmed schedule. Press the , or button to set the temperature.

When you go on vacation (Vacation mode)

In this mode, the thermostat uses the vacation preset temperature (see page 13). There are two ways to place the thermostat in Vacation mode:

 Press the button on the thermostat. When the Vacation mode is activated this way, the icon

appears on the screen without flashing.

 From any remote control device equipped with a dry contact (see p age 8) . When th e cont act clo ses,

the thermostat is placed in Vacation mode and the icon flashes on the screen. All buttons on the thermostat are locked. When the contact opens, the thermostat returns to the preceding mode.

NOTE: When the Vacation mode is activated from a remote control device, it can only be deactivated using the device.

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Owner’s Guide

Error Messages

The measured temperature is below the display range. Heating is

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activated. The measured temperature is above the display range. Heating is

deactivated.

Verify the thermostat connection and sensor connection.

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