Honeywell Home TL7235A User manual

TL7235A
Non-programmable thermostat
Owner’s Guide

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TL7235A
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Overview & Operation
Before you start..................................................................................................................... 2
About your thermostat...........................................................................................................3
Controls and display.............................................................................................................. 4
Installation
Installing the thermostat........................................................................................................ 6
Wiring diagram...................................................................................................................... 7
Setting the configuration switch............................................................................................. 8
Appendix
Error messages..................................................................................................................... 9
Technical specifications....................................................................................................... 10
Warranty...............................................................................................................................11
Table of contents

Owner’s Guide
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Read the entire document
CAUTION:
• Installation must be carried out by a certified electrician and must comply with national and local
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.
• For a new installation, choose a location about 5 ft. (1.5 m) above the floor.
• Install the thermostat on an inside wall facing the heating system.
• 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.
Before you start

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This thermostat can be connected to an electric heater to control the room
temperature.
Supplied Parts
• One (1) thermostat
• Two (2) mounting screws
• Four (4) solderless connectors for copper wires
About your thermostat

Owner’s Guide
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Controls and display
Temperature (see page 5)
Temperature
adjustment buttons
Backlight button (see page 5)
On/Off switch (see page 5)
Appears when the set
temperature is displayed
Heating indicator: The number
of flames varies according to
the heating intensity. The image
disappears when heating stops.

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Temperature Display and Setting
The thermostat usually displays the room temperature. To view the set (desired)
temperature, press either of the buttons once. The set temperature is displayed for 5
seconds.
To set a new temperature, press one of the buttons repeatedly until the desired
temperature is displayed. To scroll faster, press and hold the button.
Backlight
The display illuminates for 5 seconds when the backlight button is pressed.
When either of the buttons is pressed, the display illuminates for 10 seconds. The set-
point temperature appears for the first 5 seconds, then the current temperature is displayed.
On/Off Switch
You can set the thermostat to Off to cut power to the heating system when it is not in use
(e.g. in summer). The thermostat screen becomes blank but all settings are saved.

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
Turn the heating system off at the main electrical panel. Loosen the bottom screw and remove the thermostat
faceplate from its wallplate. (The screw cannot be
completely removed.)
Connect the thermostat to the load and to the power supply
(see page 7).
Install the wallplate to an electrical box using the provided
screws.
Set the configuration switch (see page 8).
Install the faceplate back on the wallplate and tighten the
screw. If there is a sticker on the screen, peel it off.
Return power to the heating system at the main electrical
panel.
Installing the thermostat
Faceplate
Wallplate

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NOTE: Connect the wires using the provided solderless connectors for copper wires.
Wiring diagram
Power
Load

Owner’s Guide
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The configuration switch is located at the back of the control module (faceplate).
The switch allows you to select between °C and °F.
Setting the configuration switch