Model No.
HTM621
Programmable Thermostat
For Electric Baseboard Heaters
High VOLTAGE
120 V/ 240 V AC, 60 Hz
Ref: HTM621 UPM BRAND
Features:
Ideal for electri c base boards, fan assisted (conve ctors) and radiant ceil ing heating
7-day program ming with 4 program s per day
Copy one day’s program to anothe r day
Temperature display and program ming in Celsius or Fahre nheit
Precise temperature control, set in half de grees
Temperature override preven ts other users f rom i ncre asing tem perature, in order to better manage heating costs
Selectable cycle rates for energ y-eff ici ent heating, precise heating (Variance 0.6 °F [0.3 °C])±
TRIAC system (Quiet operati on)
Usage monitor tracks accu mulated heating “ON” time
12- or 24-ho ur hour clock display
Simple two-wire installati on
LCD back light
SPECIFICA TIO NS
Rating: 120 V/240 V AC, 60 Hz
Max. load: 16.6 A
4000 W @ 240 V or
2000 W @ 120 V
Min. load: 500 W @ 240 V
* NOT FOR USE WITH
LOW VOLTAGE (24 V) CENTRAL HEATING
& AIR CONDITIONNING SYSTEMS &
WALL MOUNTED FURNACES.
Hardware included:
- 2 Screws
- 2 Wire Nuts
Table of Contents
Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
LCD Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Button Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Set Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Set °C or °F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Program Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Copy Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
High-Limit Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Temporary Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Hold Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Usage Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Memory Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Thermostat Surface Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Option Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Pre-comfort Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Heating Cycle Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Setting of High-Limit Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
1
Installation
instructions
2
Introduction
This thermostat is for use with high voltage systems (120 V/240 V) such as electric baseboards,
radiant ceiling/floor heaters and convectors ONLY. The unit is rated for high-voltage wiring only
(120 V / 240 V). The minimum load requirement is 500 W. NOT for use with low voltage (24 V)
central heating & air conditioning systems & wall-mounted furnaces.
Warning
THIS PRODUCT MUST BE INSTALLED IN ACCORDANCE WITH THE
CANADIAN ELECTRICAL CODE, AND IN QUEBEC, BY A QUALIFIED ELECTRICIAN.
The manufacturer assumes no responsibility for damages caused by improper wiring.
Improper installation automatically voids the warranty.
3
HEATING SYSTEMS
Central Heating Furnace System(24 V)
COMPATIBILITY
No
COMPATIBILITY
Generally, equipment with high-voltage control is only compatible with the electric baseboards,
convectors or radiant heating systems.
Warning
DO NOT WIRE TO A SYSTEM EXCEEDING 16.6 A (4000 W @ 240 V, 2000 W @ 120 V)
4
Electric Baseboard Heater (120V/240 V)
Fan Assisted (Convectors)
Electric Radiant Ceiling Heater
Heat Pump
Yes
Yes
Yes
Electric Radiant Floor Heater
No
No
Thermostat should be mounted:
on the existing metal electrical box that controls your heater.
Note: Ensure that the thermostat is not near heat sensitive / flammable material such as exposed wood
or wallpaper. The normal surface temperature of the thermostat is 113° to 122°F (45° to 50°C)
while in operation. The thermostat is rated to operate safely at these temperatures, but should be
kept away from fire hazards.
For NEW home installation, the metal electrical box and thermostat should NOT be mounted:
near temperature-radiating objects that may cause false readings
(For example: in front of a window, next to a door leading outside, or near the heat from a lamp,
direct sunlight, or a fireplace)
near concealed pipes and chimneys.
in areas with poor air circulation, such as behind a door or in an alcove.
5
Choosing a location
6
INSTALLATION
THIS PRODUCT MUST BE INSTALLED IN ACCORDANCE WITH THE
CANADIAN ELECTRICAL CODE, AND IN QUEBEC, BY A QUALIFIED ELECTRICIAN.
The manufacturer assumes no responsibility for damages caused by improper wiring.
Improper installation automatically voids the warranty.
Before installation:
Verify that the heating appliance that is being connected is within the specified load range.
Ensure that the new thermostat is rated for 120 V / 240 V.
Ensure that the heating system is protected by appropriate circuit breakers or fuses.
Connect to COPPER conductors only.
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.
*
7
INSTALLATION
Mount the thermostat to the wall box using two screws
through the mounting holes, and then replace the
faceplate. (Place screws in the 2 right or 2 left holes.)
Using the wire nuts provided, securely fasten each
wire from the new thermostat to the live wires in the
wall box. Refer to the diagram.
NOTE: ENSURE THAT NO BARE WIRE IS EXPOSED.
Remove the old thermostat carefully, and identify the
two wires from the wall box.
Reconnect power supply.
1
2
3
4
4-WIRE INSTALLATION:
Metal Wall Box
Electric
Heater
25.8
23.0
8:15
PM
*120 V / 240 V AC Lines
Wire Nut Wire Nut
Wire Nut
Bypass
Connect
Gently remove the faceplate from the right side of the
new thermostat, but DO NOT remove the screws
from the back of the unit, because these screws hold
the thermostat together.
5
* Remove Faceplate
To remove the
faceplate, gently
pull the right side of
the thermostat.
The faceplate should
come off easily.
*Note: If there are 4 wires connected to the old thermostat,
the 2 extra wires should be connected together using a wire
nut (not supplied).
HOLD USAGE PROG
COPY DAY SET
RESET
8
If you have successfully installed the thermostat, but the LCD screen does not display or
the display seems abnormal, press the RESET button. (The reset button must be pressed in gently using
a small blunt object.)This will revert the clock to 9:00 a.m. Monday morning.
NOTE: To restore programs and options to factory defaults, see page 18.
RESET
2
BACKLIGHT
This unit comes equipped with a backlight that will light up the screen for a few seconds any time a button
is pressed. The backlight might not come on if there is ample light in an
extended power outage. Following a period without power, the thermostat will use power to recharge
a back-up battery. Once this battery is recharged, the backlight will work again.
room, or just after installation or
9
Programming
LCD Display
10
P2
P3
P4
P1
MO
TU
WE
TH
FR
SA SU
PM
USAGE
SET
TIME / USAGE
PROGRAM PERIODS
SET TEMPERATURE
CURRENT TEMPERATURE
HEAT “ON” ICON
WEEKDAYS
POWER OUTPUT LEVEL
SET CLOCK
COPY FUNCTION
HOLD FUNCTION
OVERRIDE “ON” ICON
USAGE MONITOR
TEMPERATURE SCALE
CELSIUS OR FAHRENHEIT
HIGH LIMIT FUNCTION
Buttons
11
USAGE
Displays the total time spent heating per day or week.
COPY
Copies program settings from one weekday to another.
HOLD
Suspends automatic programs(manual mode)
PROG
To enter program mode and scroll settings.
UP / DOWN
Changes target temperature.
RESET
Resets program /clock to factory defaults. (See page 8.)
DAY
Changes day of the week when viewing programs or
setting the clock.
SET
Enters the clock setting mode. Press for 3 seconds to
access optional settings.
AHEAD / BACK
Moves time ahead or back in clock and program mode.
HOLD USAGE PROG
COPY DAY SET
RESET
SET CLOCK
12
P1
TU
PM
SET
TIME
WEEKDAYS
Set Clock / Weekday
Press SET to en ter the clock-setting mode.
(SET will display and the clock symbol/time flashes)
Press the AHE AD or BACK button to scroll to the
correct tim e of day, hold the button to accelerate.
Press DAY repeatedly to change the day
of the week.( Weekday symbols wi ll flash)
Press SET to en d the time mode, or wait
15 seconds fo r normal display to retur n.
2
1
3
4
Choose 12- or 24-hour hour clock
Note: 12-hour mo de is the default.
Press and hol d SET for 3 seconds to enter th e
option sett ing mode. (12Hr or 24Hr wil l flash on
the bottom pa ne of the LCD screen)
Press UP or DOW N to toggle between12- and
24-hour dis play.
Wait 15 se conds for normal displa y to return.
2
1
3
FLASHING
CLOCK
SYMB OL
& TIME
13
Select °C or °F (Celsius or Fahrenheit)
Press SET for 3 s econds to enter the optio n setting mode.
Press SET 3 tim es (until the temperature and °F / °C begins flashin g)
Press UP or DOW N to toggle between the °F / °C setting.
Wait 15 se conds for normal displa y to return.
(See Option s ection for more details )
2
1
3
4
CELSIUS DEFAULT: Since Celsius (°C) is the default mode, no action
is required to use the thermostat in this mode.
(°C or °F)*If you wish to use Fahrenheit* It is VERY IMPORTANT that you choose
Fahrenheit (°F) before you begin using the thermostat. If you proceed to
program the thermostat with the default Celsius (°C), and THEN change to the
Fahrenheit (°F) setting; all programs set by the user will be deleted.
Program Heating
This is typically the morning hours, when you may prefer to wake up to a warmer
temperature.
This is usually an energy-savings period, for the time when you are away from home.
The temperature setting can be reduced to minimize energy consumption. If you are not
away from home on a particular day, you may override this setting by manually
adjusting the temperature buttons.
This is the period when you typically return home, and would like the house at a
comfortable temperature. Generally, the temperature is set to warmer settings during the
winter and cooler settings during the summer. If you do not often leave the house during
the day, period 1, 2 or 3 can be set at the same temperature for comfort.
This is the period when you would typically be asleep. You may choose to set the
temperature for energy savings or comfort, as desired.
14
This thermostat is equipped with 7-DAY PROGRAMMING. Monday + Tuesday + Wednesday
+ Thursday + Friday + Saturday + Sunday programming, with 4 settings per day. This thermostat
is pre-programmed for your convenience, or you can set your own programs as desired.
The program
periods (P1,P2, P3, P4) allow you to set the temperature settings and start times throughout the day.
P4: NIGHT
P1: MORNING
P3: EVENING
P2: DAY
The program periods (P1,P2, P3, P4) allow you to set the temperature settings and start times
throughout the day. These are examples of possible temperature settings, the first being the
factory default setting, and the second a custom setting.
15
Set Program
PERIOD
MORNING
DAY
EVENING
NIGHT
P TIME
P1
P2
P3
P4
7:00 ( )
8:00 ( )
5:00 p.m. ( )
11:00 p.m. (17 )
a.m. 69.0 °F 20.5 °C
a.m. 69.0 °F 20.5 °C
69.0 °F 20.5 °C
62.5 °F .0 °C
HEAT SET POINT
2) CUSTOM / PRE-PROGRAMMED TIME AND TEMPERATURE SETTINGS
PERIOD
MORNING
DAY
EVENING
NIGHT
P TIME
P1
P2
P3
P4
HEAT SET POINT
1) DEFAULT / PRE-PROGRAMMED TIME AND TEMPERATURE SETTINGS
6:00 ( )
8:00 (17 )
5:00 p.m. 70 (21 )
10:00 p.m. 62.5 °F (17 )
a.m. 69.0 °F 20.5 ° C
a.m. 63.5 °F .5 °C
.0 °F . 0 °C
.0 °C
Example 1
This setting is a default, and
will activate automatically.
Convenient for people who
are away from home during
the day and who wish
maximize energy savings.
Example 2
This is a custom program
set by the user. Convenient
for people who are at home
during the day and want
the home warm all day, but
want a cooler temperature
at night.
First select the day you wish to program, then
select the start times and temperature settings for
all four program periods. Scroll through the daily
Program Periods in this order: P1, P2, P3, P4.
You may select any weekday to begin programming:
Press PROG to enter program mode.
Press DAY to change weekday being programmed. (Period 1 (P1) will appear.)
Press UP or DOWN to set the temperature for P1.
Press AHEAD or BACK to set the start time for P1.
Press PROG again to adjust the next Program Periods (P2, P3, P4) and to exit program mode
Repeat the above steps above until all four programs are adjusted to your needs. Then you can
program the rest of the week by programming each day individually, or by using the COPY function.
2
1
3
4
5
Set Program
COPY FUNCTION - When temperature override is activated, other users cannot increase
the temperature.
16
P2
P3
P4
P1
MO
TU
WETHFR
SA SU
PM
SET
START
TIME
PROGRAM
PERIODS
TEMPERATURE
SETTING
WEEKDAYS
CLOCK
SYMB OL
6
This thermostat can copy program period settings from one day to another using the
COPY function. All four period settings (P1, P2, P3,P4) will be copied. This is faster than
programming each day one at a time.
If you are not already in program mode, press PROG to enter program setting mode.
Press DAY to select the weekday you wish to COPY FROM.
Press COPY. The COPY symbol will be displayed, and the next weekday will flash,
indicating the weekday being COPIED TO.
Press DAY to select the day you wish the programs COPIED TO.
Press COPY again to copy all four program settings from the first day to the flashing day.
The COPY symbol will disappear to indicate the COPY function is complete.
Note: To copy the program to another day, press copy again, and repeat.
For example: If you press COPY 12 times consecutively, the selected program
will be copied to the entire week.
17
2
1
3
4
Copy Program Function
HIGH-LIMIT FUNCTION
The maximum programmable temperature will be the high-limit setting if it has been selected.
If it is set after programming, any higher temperatures will be reduced to the high-limit.
If you have difficulty programming your thermostat, you may wish to restore the factory settings
and begin again.
RESTORE PROGRAMS AND OPTIONS
Press SET for 3 seconds to enter the Options mode.
Press PROG for 3 seconds to restore all programs to factory defaults.
Note: This will restore the default programs and the option settings, but will not affect the clock.
To reset the clock, press RESET (see page 8 for more details).
18
2
1
19
This function will allow you to change the temperature setting until the start time of next program period.
Press the UP or DOWN button to manually adjust to the desired temperature setting.
NOTE:
The temperature can be set in increments of 0.5 °C or 0.5 °F .
The temperature setting range is from 41° to 95 °F (5° to 35 °C).
Press and hold the UP or DOWN button down to accelerate the setting.
The thermostat will automatically return to the regular program at the next scheduled program period.
If the High-Limit function is activated, the user can’t set the temperature over this limit.
1
2
1
Temperature Override
HOLD Function
This function maintains a constant temperature, and disables temperature program periods.
Press the HOLD button once to enter the HOLD mode. (HOLD symbol will appear)
(*When HOLD is activated, you may manually adjust the temperature by pressing UP or DOWN.
However, all programs will be disabled. If no temperature changes are manually selected, the current
temperature setting will remain the same indefinitely)
To CANCEL the HOLD function, press the HOLD button again. The HOLD symbol will disappear.
20
OPERATION
Current Temperature Display
The current (room) temperature is displayed on the LCD screen.
Power Bar
This thermostat is equipped with a proportional regulation
system to determine the precise amount of power required
by the electric heater to maintain the temperature setting.
The “Power Bar” indicate the current output power level.
1 BAR = 10%, 10 BARS = 100%
When the heating system is activated at partial power,
a proportional number of bars will appear
(e.g. 60% = 6 bars). When the heating system is
activated at maximum power, all 10 bars will display.
Fireplace Symbol
The fireplace symbol will flash when the heating system is ON
(actively heating).
21
The thermostat tracks the system "ON" time; the total time the heating equipment is running.
Press the USAGE button once to view USAGE TODAY.
Press the USAGE button again to view the USAGE THIS WEEK (total time from Monday to current day);
- USAGE TODAY starts at midnight.
- USAGE THIS WEEK automatically resets itself on Monday morning, after midnight on Sunday.
- A new week begins Monday morning.
Memory Backup
The memory backup will save and protect programs and option settings indefinitely. If an extended
power outage occurs, only the clock setting may be affected. The clock will continue to run and display on the
LCD screen for up to 1-2 days even without power, due to the rechargeable back-up battery inside the unit.
However, if the power outage is longer than 2 days, the clock will need to be reset.
(The unit will reset itself to a 9:00 a.m. default).
Usage Monitor
Thermostat Surface Temperature
thermostat is rated to operate safely at these temperatures.
heat sensitive / flammable material
such as exposed wood, wallpaper or other fire hazards.
In normal operation, the thermostat may range in temperature from 113° to 131°F (45° to 55 °C).
This is perfectly normal, because this
However, it is recommended that the thermostat not be installed near
22
OPTION 1 - 12- or 24-Hour Clock Format
Press and hold SET for 3 seconds to enter the Option Setting mode.
The first option is 12- or 24-hour clock format. (12:Hr will be flashing)
Press UP or DOWN to toggle between 12- or 24-hour format.
OPTION 2 - Heat Cycle Rate
Press SET again to advance to the second option (Cycle rate. Cr:1 will flash)
Press UP or DOWN button to adjust setting (see cycle rate definition on following pages)
Cr0 = Full Power, No Cycle (for fan-assisted heating devices)
Cr1 = 20 Sec. Proportional Power (for non-fan-assisted baseboards and electric heating devices)
Cr2 = 240 Sec. Proportional Power (for convectors and radiant ceiling)
OPTION 3 - Pre-Comfort Recovery
Press SET again to select pre-comfort recovery. (rE:1 will flash on screen)
Press UP or DOWN to adjust setting (see pre-comfort recovery definition on following pages)
rE:0 means pre-comfort recovery feature is disabled
y feature is enabled
rE:1 means pre-comfort recover
2
1
2
1
OPTION SETTINGS
This thermostat has 4 OPTION settings that the user can change.
The OPTION data will appear in the lower pane of the LCD screen.
2
1
23
OPTION 4 - °C or °F Display
Press SET again to select Celsius or Fahrenheit scale (the current temperature will flash)
Press UP or DOWN to toggle between the °C or °F temperature scales.
Note: (°C or °F) It is VERY IMPORTANT that you choose Fahrenheit (°F) before you begin using
the thermostat. If you proceed to program the thermostat with the default Celsius (°C) and THEN
change to the Fahrenheit (°F) setting; all programs set by the user will be deleted. If you change
from Celsius (°C) to Fahrenheit (°F) or vice versa, all programs will be reset to the factory defaults.
2
1
If pre-comfort recovery is turned off (rE:0),
heating will only be initiated at the exact start time the program period.
Pre-comfort Recovery
This thermostat is equipped with a ‘Pre-comfort Recovery’ system that will activate the heating system
in advance of the actual set program time so that the room will be at the desired temperature at the start
of the program time.
It is normal for the system to be activated earlier than the actual set program time (up to one hour).
The Pre-comfort Recovery can be disabled if desired.
24
Heat Cycle Rate
Cycle rate determines the heating on/off time cycles and the level of proportional power required to
operate the heater. (To have the heater operate at full power all the time, select Cr 0 to disable heat
cycling.) The cycle rate is based on the type of heating system and the power load required to operate
the device. The higher the load (size of baseboard or radiant heater), the greater the heat generated.
Cr 0 is continuous operation (no cycling), with a variance of +/- 0.6 °F (+/-0.3 °C). The heating unit will
operate at full power and the arrow bar icon will appear full. This function is for users who do not want
their electric heating devices to turn on and off frequently.
Cr 1 is a 20-second cycle rate with proportional heating. This means the heating will be turned on
and off once every 20 seconds to provide a stable room temperature. This cycle rate allows a
proportion level of power to the heating device. This is indicated on the thermostat display by the
bar icon, which will be partially filled, indicating the amount of power going to the heater. This setting is
recommended for standard electric heating devices, without fans, and will provide the most
energy-efficient heating and a stable temperature.
Cr 2 is a 240-second span. This means the heating will be turned on and off once every 240 seconds.
This is the recommended setting for fan-assisted heaters and radiant ceilings.
25
Setting the HIGH-LIMIT FUNCTION
To enable this feature and set a maximum temperature, first press the "UP" or "DOWN" key until the
desired high limit temperature is shown in the program temperature pane. Press the “USAGE” and
“COPY” keys for 3 seconds to activate the function. A LOCK symbol will be shown.
All existing programs will be scanned, and if the existing temperature setting is above the new maximum
set point, it will be reduced to the high-limit set point. The High-limit setting can not be bypassed by
programs, temporary overrides or the HOLD function.
To deactivate the function, turn the unit off for at least 30 seconds, and then turn it on. The LOCK
symbol will blink for 5 minutes. While the LOCK symbol is blinking, the deactivation process can be
carried out by pressing “USAGE” and “COPY” keys for 3 seconds. The LOCK symbol will disappear
upon deactivation.
SPECIFICATIONS
Rating: 120 V/240 V AC, 60 Hz
Max. load: 16.6 A
4000 W @ 240 V or
2000 W @ 120 V
Min. load: 500 W @ 240 V
TROUBLESHOOTING GUIDE
Specifications:
Number of programs: 7-Day with 4 settings per day
Temperature display range: -9.9°C - 70°C (14°F - 158°F)
Temperature setting range: 5°C to 35° C (41°F to 95° F)
PROBLEM SOLUTION
LCD screen is blank or
abnormal.
- Check if the circuit breaker is open.
- Check if there has been a power failure.
- Check that the thermostat is wired to a 500 W or greater circuit.
- Check the wiring installation with a certified electrician.
- Press the RESET button under the faceplate (see page 8).
26
Programming Issues:
Heating is not activated
at the programmed times.
- Review the programming guide to ensure the programs have been entered correctly.
- Check that the clock has been set to the correct time. (e.g.: a.m./p.m. reversed)
- Check if there has been a power failure.
- PROGRAM RESET: Press SET for 3 seconds to enter the option mode,
then press PROG for 3 seconds to clear programs settings only.
- RESET ALL: Press and hold the HOLD and the RESET button at the same time
to restore all settings to factory default (see page 8).
PROBLEM SOLUTION
The heating system will
not activate.
Heating system seems to
cycle too often.
- Check the thermostat LCD display to see if there has been a power failure.
- If a lock appears on the LCD when you raise the temperature, the “HIGH-LIMIT FUNCTION”
is activated.
- Check heating device to see if it is disabled or if the circuit breaker is open.
- Check the wiring installation with a certified electrician.
Check and ensure that you have selected a Cycle Rate that matches your particular
heating system.
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The temperature display is
incorrect.
- Ensure thermostat is not installed near a draft, in direct sunlight or near any devices
such are air conditioners or heaters.
The thermostat feels HOT
to the touch.
- In normal operation, the thermostat may range in temperature from 113° to 131°F
(45° to 55 °C) This is perfectly normal, because this thermostat is rated to operate
safely at these temperatures. However, it is recommended that the thermostat not be
installed near heat sensitive / flammable material such as exposed wood, wallpaper
or other fire hazards.
The heating system is
running constantly.
- Check the temperature is not set too high.
- Check the wiring installation with a certified electrician.
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Limited 5-year Repair Warranty
This product carries a five (5) year warranty against defects in workmanship and materials.
This product is not guaranteed against wear or breakage due to misuse and/or abuse.
If the product is defective,
(i) return it, with a dated proof of purchase, to the retailer from which you purchased it.
Attention:
THIS PRODUCT MUST BE INSTALLED IN ACCORDANCE WITH THE CANADIAN ELECTRICAL CODE,
AND IN QUEBEC, BY A QUALIFIED ELECTRICIAN. The manufacturer assumes no responsibility for damages caused
by improper wiring. Improper installation automatically voids the warranty.
Toll-free Helpline:
1-888-468-6876
* NOT FOR USE WITH
LOW VOLTAGE (24 V) CENTRAL HEATING
& AIR CONDITIONNING SYSTEMS
& WALL MOUNTED FURNACES.
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