Upm THM301A User Manual

Thermostat contols 24V millivolt furnaces and air conditioners.
NOTE: This thermostat is NOT compatible with baseboards or
any 120V or 240V high voltage control system.

Programmable

Thermostat

THM301A

TABLE OF CONTENTS

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Compatibility chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

INSTALLATION GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installing the battery and selection of °C/ °F display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Tools for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Choosing location for the new thermostat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Replacing old thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Mounting the thermostat back-cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Connecting the wires to the terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Setting the fan operation jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Attaching the thermostat to the back-cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Function Key descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

LCD Display / Set time and day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Heating program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-22

Cooling program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

TABLE OF CONTENTS

Temporary override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Hold function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Check programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Room temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Fan control switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Heat/Cool control switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Pre-comfort recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Changing batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-30

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

FEATURES

l Extra Large LCD display with backlight
l Real-time clock with selectable 12 or 24 hour display format
l 5+2 Day Programming with 4 programs per day
l Separate Heat / Cool programs with built-in protection for the air-conditioner compressor
l Display and set temperature in °C or °F
l Interface with heating or air-conditioning systems for automatic temperature control
l Low battery notification by flashing icons and beep sound

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THM301A

l This thermostat requires two AA size batteries (included) to operate. Ensure the batteries are installed.
l Select °C or °F before clock setting and programming.

Cover

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COMPATIBILITY CHART

Generally, equipment with low voltage control is compatible with this thermostat.
For details on compatibility of your particular equipment, please call our technical assistance line.

System Type
Gas - Standing Pilot
Gas - Electronic Ignition
Gas - Fire Boiler
Gas - Millivolt System
Oil - Fire Boilers
Oil - Fire Furnace

Electric Furnace
Electric Air Conditioner
Baseboard Electric Heater (120/240V)
Heat Pump / Multi-Stage equipment

Compatible

Yes
Yes

Some models

Yes

Some models

Yes
Yes
Yes

No
No

* NOT COMPATIBLE WITH ANY 120/240 VOLT CIRCUIT

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Installation

Guide

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INSTALLATION GUIDE

INTRODUCTION

This thermostat can replace common residential thermostats and it is designed for use with most electric, oil
or gas heating and air-conditioning systems that use low voltage control. Please see compatibility chart for
more details.

l Weekday / Weekend programming with 4 programs per day.
l Display temperature with 0.1°.
l Built-in protection timing for the air-conditioner compressor.

If you have any questions concerning the installation or programming of the thermostat, please call
1-888-468-6876 for technical assistance.

INSTALLING THE BATTERY AND SELECTION OF °C/°F DISPLAY

Install the two AA size batteries (included) to the thermostat following the polarity as marked. The LCD display will show
the room temperature flashing in Celsius. Press UP or DOWN to change the temperature display between °C and °F.

Press SET CLOCK, and the thermostat would go to clock setting / normal display.

Note: This is a one-time process. The temperature unit of the thermostat CANNOT be changed afterwards unless you
reset the thermostat.

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The following tools may be required for installation:

Cross screwdriver

Masking Tape

(To wrap the exposed wires temporarily and labeling
the disconnected wires)

Hand Power Drill with a 3/16 inch bit

( If necessary, to drill holes on the wall )

Level

(If necessary, to level the thermostat)

Wire Stripper/Cutter

(If necessary, to strip the wires)

Two AA size batteries (included)

- AA SIZE +

- AA SIZE +

See below to select a suitable place for the new thermostat installation. And refer to Replacing Old
Thermostat section to replace old thermostat.

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CHOOSING LOCATION FOR THE NEW THERMOSTAT

Thermostat should be mounted:

l Approximately 5 ft (1.5m) from floor.
l Near or in a frequently used room, preferably on an inside partitioning wall.
l On a section of wall without pipes or duct-work

Thermostat should NOT be mounted:

l Near a window, on an outside wall, or next to a door leading outside.
l With exposure to direct light or heat from a lamp, sun, fireplace, or other temperature-radiating objects

which may cause false readings.

l Near or in direct airflow from supply registers and return-air grills.
l Near concealed pipes and chimneys.
l In areas with poor air circulation, such as behind a door or in an alcove.

After choosing a location for the new thermostat, you may arrange to have a heating contractor install the
control wiring for you.

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