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Line-Voltage Thermostat

HTM511A

OWNER’S 

MANUAL

Congratulations on your 
purchase of this UPM line-
voltage thermostat.  Please  
take the time to read and 
understand this manual so 
you can begin to enjoy the 
convenience this product 
offers.

FEATURES

!

Ideal for electric baseboards, 
convectors and radiant 
floor/ceiling heaters

!

Precision temperature control 
with selectable cycle rates

!

Intelligent Adaptive Regulation

!

Temperature display in 

!
!
!

Rating: 120V~240V AC, 60Hz

!

MAXIMUM LOAD: 12.5A

3000W @ 240V

 or 

1500W @ 120V

!

MINIMUM LOAD: 500W

°C or °F

Quiet operation
Simple two wire installation

CAUTION!

TO AVOID FIRE, SHOCK, OR DEATH, SHUT OFF POWER SUPPLY 
AT THE CIRCUIT BREAKER OR FUSE AND TEST THAT THE 
POWER IS OFF BEFORE WIRING.

This thermostat is compatible with most high voltage (120V to 240V AC) 
electrical heaters or heating appliances.  The minimum load 
requirement is 500W.

This product operates at 120V to 240V AC. Do not install it unless 
you are completely familiar and competent with house wiring. 
Handle with caution to prevent any risk of electrical shock that 
could cause serious injury or death.

Ensure that the heating system is protected by appropriate circuit 
breakers or fuses.

Approximately 5ft (1.5m) from the floor.

All wiring must comply with applicable codes and regulations.

For wiring, use COPPER conductors only.

Do NOT connect voltage different from device rating.

The thermostat must be fully installed in order for the buttons and LCD to operate.

This thermostat should be mounted:

INSTALLATION

OPERATING MODE SETTING

INSTALLATION

Mount the new thermostat into 
the wall box using the two screws 
provided through the mounting 
holes. (Remove the cover if 
necessary).

Using the wire nuts provided, 
securely fasten each wire from 
the new thermostat to a wire in 
the wall box.  Refer to the 
diagram. 

 NOTE: ENSURE NO 

BARE WIRE IS EXPOSED.

Remove the old thermostat 
carefully and identify the two 
wires from the wall box.

Reconnect power supply.

DISCONNECT THE POWER SUPPLY AT THE CIRCUIT BREAKER 
OR FUSE BEFORE PROCEEDING WITH THE INSTALLATION.

4-WIRE INSTALLATION:

Wire Nut

Metal Wall Box

*

*

1

2

3

4

Electric 
Baseboard
Heater

120-240V AC
Line

CHOOSING A LOCATION FOR A NEW THERMOSTAT

Near or in a frequently occupied room, preferably on an inside partitioning wall.

On a section of the wall 

without

 pipes or duct-work.

Near a window, on an outside wall, or next to a door leading outside.

This thermostat should 

NOT

 be mounted:

Exposed to direct light or heat from the sun, lamp, fireplace, or other heat radiating 
objects which may cause false readings.

Near or in a direct airflow from supply registers and return-air grilles.

Near concealed pipes and chimneys.

In areas of poor air circulation, such as behind a door or in an alcove.

This thermostat gives you the options to:

To enter the setting mode, press both the 

UP 

and

 DOWN

 buttons together.

Select the cycle rate; and/or

Select the temperature display in 

°C or °F

Press the 

UP

 button to select the desired CYCLE RATE.

There are 3 different cycle rates to choose from.

Press the 

DOWN

 button to toggle between the 

°C or °F display.

NOTE: The default temperature unit is 

°C

OFF (fixed span)

12 seconds

240 seconds (4 minutes)

Cr

Cr-0

Cr-1

Cr-2

CYCLE RATES

In the setting mode:

OPERATION

OPERATION

CURRENT TEMPERATURE DISPLAY

The current (room) temperature is 
normally displayed on the LCD screen.

TEMPERATURE SETTING

Press the 

UP

 or 

DOWN

 button once to enter the temperature setting 

mode.  The “hand” symbol will appear, and the display will now show 
the current set temperature.

1

Press the 

UP

 or 

DOWN

 button to adjust to the desired set temperature.

NOTE: Press and hold the button 
down to accelerate the setting.  If no 
button is pressed within 8 seconds, 
the display will automatically return 
to the current temperature display.

2

The temperature can be set in increments of 0.5

°C.

The temperature setting range is from 5

°C to 35°C.

HEAT “ON” INDICATOR / OUTPUT POWER LEVEL

DISPLAY AUTO-RETURN

When the thermostat activates the heating system, the                 symbol will 
appear. Equipped with an intelligent proportional regulation, this thermostat will 
determine the amount of power needed by the electric heater to maintain the 
room temperature to precisely that of the set temperature.  The “Power Bar” will 
indicate the current output power level.  1 BAR = 20% and 5 BARS = 100%

In any setting mode, if no button is pressed within 8 seconds, the display will 
automatically return to the current temperature display.

F

F

F

Indicates that the
thermostat is operating 
at 40% in power

HEAT “ON”
Indicactor

DISPLAY / BUTTONS

button placement

UP BUTTON

TEMPERATURE DISPLAY

TEMPERATURE UNITS (

 or  F)

°C

°

HEAT “ON” INDICATOR

LCD display

1

1

2

2

3

4

5

1

1
2

4

DOWN BUTTON

2

F

OUTPUT POWER LEVEL

5

TEMPERATURE SETTING MODE

3

Display shows a blank screen.

The thermostat housing is hot.

Make sure that the thermostat is fully 
installed.  Refer to the INSTALLATION 
section.  Check that the power supply 
has been reconnected at the circuit 
breaker or fuse.  And, if the heater or 
heating appliance has a power switch 
of its own, check to see that it has 
been turned ON.

problem

solution

TECHNICAL SPECIFICATIONS

Rating: 120V ~ 240V AC, 60Hz
Maximum Load: 12.5A; 3000W @ 240V or 1500W @ 120V
Minimum Load: 500W

TROUBLESHOOTING

LIMITED THREE-YEAR WARRANTY

UPM warrants this product, excluding battery, to be free from defects in the materials or workmanship, under normal use and 
service, for a period of three

years from the date of purchase by the consumer.

If, at any time during the warranty period, the product is defective or malfunctions, UPM shall repair or replace it (at UPM's 
discretion) within a reasonable period of time.

If the product is defective,
(i)

return it, with a dated proof of purchase, to the retailer from which you purchased it, or

(ii)

package it carefully, along with a dated proof of purchase and a short description of the malfunction, and mail it, postage 
prepaid, to the following address:

UPM Marketing Inc.
Return Goods
Unit 10B - 250 Shields Court
Markham, Ontario
L3R 9W7

This warranty does not cover removal or reinstallation costs.  This warranty shall not apply if it is shown by UPM that the defect or 
malfunction was caused by damage which occurred while the product was in the possession of the consumer.

UPM's sole responsibility shall be to repair or replace the product within the terms stated above.  UPM 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 UPM 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 may vary from state to state.

If you have any questions concerning this warranty, please write to:

UPM Marketing Inc.
Customer Service Department
Unit 10B - 250 Shields Court
Markham, Ontario
L3R 9W7

Or call 1-888-GO-TO-UPM (1-888-468-6876), Monday to Friday, from 9:00am to 5:00pm eastern.

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NOTE: When using this thermostat with heaters or heating appliances with a fan, 
we do NOT recommend setting the cycle rate to Cr-1 (12 seconds).

In normal use at full capacity, the 
thermostat housing may reach 
temperatures of approximately 40

°C.  

This state is normal and does not 
affect the operation. 

Using the GREEN wire nut 
provided, securely fasten the 
GREEN grounding wire from the 
new thermostat to the grounding 
wire of the cables and the 
grounding screw of the wall box.  
Refer to the diagram.

5

GREEN
Wire Nut

Grounding

Screw

2-WIRE INSTALLATION:

Wire Nut

Metal Wall Box

Electric 
Baseboard
Heater

120-240V AC
Line

GREEN
Wire Nut

Grounding

Screw

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