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SmartStart
Your thermostat is factory set with the "SmartStart" feature turned on. The
thermostat automatically determines the best time to begin heating so it
reaches your setpoint temperature at the scheduled time.
If this feature is not desired, you may turn it off:
1. Press the OPTIONS button and hold for 1 second.
2. Press the OPTIONS button again until SSt shows on the display.
3. Press the down or up button to toggle this On or Off.
4. Press the HOLD/RETURN button to return to the normal
operating mode.
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Air Sensing and Regulator Modes
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Your thermostat is factory set to operate based on the floor sensor
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temperature. This is the recommended method to properly control your floor
HEATING
HOLD
°F
°C
LOCK
warming system.
GFCI
TRIP
USAGE
SET TEMP
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°F
°F
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A
°C
°C
However, it is also possible to also operate your thermostat in either the air
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SET BACK
P1
P2
AIR
CYCLE
P3
sensing mode or regulator mode temporarily if the floor sensor was damaged
FLOOR
LIMIT
P4
or not installed. A new floor sensor should be installed to enable operation
in Floor Sense Mode as soon as possible. These modes must be used with
caution to avoid overheating the floor.
• Air Sensing Mode – This mode operates by an air sensor inside the
thermostat. If your floor sensor is connected, you must set a Floor Limit
temperature to avoid overheating the floor coverings (see Floor Limit
below). Note: the internal heating in the thermostat may affect the sensor
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temperature.
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• Regulator Mode– In this mode the user selects the amount of time the
floor warming system heats during a 15-minute repeating cycle. There is no
temperature sensing in this mode. (see section 5 "Operation")
°F
CYCLE
If you want it to operate in the air sensing mode or regulator mode, you may
change this as follows:
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1. Press the OPTIONS button and hold for 1 second.
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A
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2. Press the OPTIONS button again until SENS shows on the
HEATING
HOLD
°F
LOCK
°C
display.
GFCI
TRIP
SET TEMP
USAGE
3. Press the down or up button to toggle this to Air or rEGu.
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°F
°F
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A
4. Press the HOLD/RETURN button to return to the normal
°C
°C
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SET BACK
P1
CYCLE
P2
AIR
P3
operating mode.
FLOOR
LIMIT
P4
Floor Limit
If you set your thermostat to operate in Air Sense Mode, the display will show
the air temperature but will also monitor the floor sensor if it is connected.
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FLOOR
To avoid possibly overheating your floor, you must set a Floor Limit temperature
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so it turns off the system if the floor sensor temperature exceeds this Floor
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HEATING
HOLD
°F
LOCK
Limit. Some wood and laminate floor manufacturers recommend a maximum
°C
GFCI
A
TRIP
M
USAGE
SET TEMP
of 82 to 84°F (27° to 28°C). Check with manufacturer. It is factory set to 99F
°F
°F
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°C
°C
A
(37C) and can be adjusted as follows:
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P1
CYCLE
P2
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AIR
P3
P4
°F
FLOOR
LIMIT
1. Press the OPTIONS button and hold for 1 second.
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CYCLE
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2. Press the OPTIONS button again until SET TEMP and FLOOR
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HEATING
LIMIT shows on the display with the current Floor Limit temperature.
HOLD
°F
LOCK
°C
GFCI
3. Press the down or up button to adjust this.
TRIP
USAGE
SET TEMP
P
4. Press the HOLD/RETURN button to return to the normal operating
°F
°F
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A
°C
°C
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SET BACK
mode.
P1
CYCLE
P2
AIR
P3
FLOOR
LIMIT
P4
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Calibration
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Your thermostat allows the ability to slightly adjust the display temperature.
Normally this is not recommended nor required. However, in special
circumstances this may be necessary, and can be done as follows:
°F
CYCLE
1. Press the OPTIONS button and hold for 1 second.
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2. Press the OPTIONS button again until CAL shows on the display
with the current sensor temperature and the current offset value.
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The offset value is factory set to zero.
3. Press the down or up button to adjust this.
°F
4. Press the HOLD/RETURN button to return to the normal
operating mode.
CYCLE
Resetting Factory Defaults
Your thermostat has the ability to reset all programming, settings, and usage
times to the factory defaults. If you are certain you want to do this:
1. Press the OPTIONS button and hold for 1 second.
2. Press the OPTIONS button again until the software version
Soft 1.4 or similar shows on the display.
3. Press the down and up buttons at the same time and hold
for 1 second. Done and rst will show on the display. The
thermostat will go through a startup mode and return to the
normal operating mode.
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5. Operation
Controlling the Temperature
Your thermostat has several ways to control your floor warming system. It
is factory set to operate in the program schedule selected but this can be
overridden to meet your needs.
Program Schedule
The thermostat will operate normally in the program schedule selected.
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When heat is called for, HEATING will show on the display and
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full power is supplied to the floor warming system. This also
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signals to turn on any Infloor Relays that may be connected to
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HEATING
your thermostat.
HOLD
°F
°C
LOCK
A
GFCI
TRIP
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USAGE
SET TEMP
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°F
°F
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Temporarily Overriding the Temperature
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°C
°C
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P1
P2
AIR
CYCLE
P3
°F
FLOOR
LIMIT
P4
You can temporarily adjust the temperature setpoint as follows. This will hold
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until the next scheduled program time:
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A
FLOOR
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A
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HEATING
1. Press the down or up arrow button and hold for 1 second to adjust the
HOLD
°F
A
LOCK
°C
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GFCI
setpoint temperature.
TRIP
USAGE
HOLD
SET TEMP
2. Wait 5 seconds and the thermostat will return to the normal operating
°F
°F
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°C
°C
A
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SET TEMP
SET TEMP
mode, saving your adjustment.
SET BACK
P1
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°F
°F
CYCLE
P2
AIR
P3
P4
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FLOOR
LIMIT
3. To cancel this temporary override and return to the normal
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CYCLE
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A
schedule temperature, press the HOLD/RETURN button briefly.
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FLOOR
LIMIT
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FLOOR
A
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HEATING
HOLD
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°F
LOCK
°C
Hold a Selected Temperature
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GFCI
TRIP
USAGE
A
SET TEMP
°F
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A
°F
°F
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A
°C
°C
HEATING
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You can hold the current setpoint temperature indefinitely,
CYCLE
SET BACK
P1
AIR
CYCLE
P2
P3
FLOOR
LIMIT
P4
especially useful when you are on vacation.
USAGE
°F
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SET BACK
CYCLE
1. Press the HOLD/RETURN button and hold for 1 second. HOLD will show on
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FLOOR
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the display and the setpoint temperature shown will be maintained until you
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cancel this hold.
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2. To cancel this hold, press the HOLD/RETURN button and hold for 1 second.
°F
HOLD will disappear from the display.
CYCLE
3. Press Hold/Return briefly and the thermostat will return to the
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°F
normal schedule temperature.
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CYCLE
FLOOR
Setback
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°F
A
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You can use the Setback button to override the current setpoint
HOLD
CYCLE
temperature. This is especially useful if you have an alternate
SET TEMP
SET TEMP
temperature you repeatedly select when you are away.
°F
°F
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CYCLE
A
1. Press the SETBACK button briefly. SETBACK will show on the display and
LIMIT
FLOOR
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its temperature. This setpoint will hold until the next scheduled program time.
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2. To hold this Setback temperature indefinitely, press the HOLD/RETURN
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°F
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button and hold for 1 second. To cancel this hold, press the HOLD/RETURN
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HEATING
button again and hold for 1 second.
CYCLE
FLOOR
3. To cancel this Setback temperature and return to the normal schedule
USAGE
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°F
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temperature, press the SETBACK button briefly.
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SET BACK
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CYCLE
A
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FLOOR
To change the temperature stored in the SETBACK button:
HOLD
SET TEMP
SET TEMP
°F
°F
°F
1. Press the SETBACK button and hold for 1 second. SETBACK will show on
CYCLE
FLOOR
the display and its temperature should be blinking.
CYCLE
FLOOR
LIMIT
FLOOR
2. Press the down or up button to adjust the temperature.
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3. Press the HOLD/RETURN button or wait 5 seconds and the thermostat will
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return to the normal operating mode, saving your adjustment.
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HOLD
A
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HEATING
SET TEMP
SET TEMP
Remote Control Override
°F
°F
USAGE
°F
CYCLE
If your thermostat was installed with Remote Control input from a home
FLOOR
LIMIT
SET BACK
FLOOR
CYCLE
FLOOR
automation system (see section 2 "Installation"), this will override the
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thermostat when the remote control system closes its output switch or relay.
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SETBACK and HOLD will show on the display and it will operate in the Setback
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HEATING
temperature indefinitely. To cancel this, the Remote Control switch or relay
must be opened.
USAGE
°F
SET BACK
CYCLE
FLOOR
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SET BACK
P1
AIR
CYCLE
P2
P3
P4
FLOOR
LIMIT
Regulator Mode
If you set your thermostat to operate in the regulator mode, it will operate like
a timer. You may adjust the amount of time the floor warming system heats
during a 15-minute repeating cycle as follows:
1. With the thermostat in the regulator mode, it will show the
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heating time and the current cycle time.
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2. Press the down or up button to adjust the heating time from 0
through 15.
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• Example: A value of 6 will cause it to heat for 6 minutes of
°F
the 15 minute cycle, and then not heat for 9 minutes of the 15
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CYCLE
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minute cycle.
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• Zero will cause it to never heat.
HEATING
HOLD
°F
°C
LOCK
°F
• 15 will cause it to heat continuously.
GFCI
TRIP
SET TEMP
USAGE
3. The cycle time shown at the bottom of the display is the current time in the
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°F
°F
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CYCLE
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°C
°C
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FLOOR
15-minute cycle. It repeats from 0:00 through 14:59 (min:sec).
SET BACK
P1
P2
AIR
CYCLE
P3
FLOOR
LIMIT
P4
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Usage
HOLD
Your thermostat stores in memory the number of hours it is heating. This
SET TEMP
SET TEMP
°F
°F
°F
information may be useful in calculating the energy used by your floor warming
system.
CYCLE
FLOOR
LIMIT
CYCLE
FLOOR
FLOOR
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1. Press the OPTIONS button and hold for 1 second.
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2. Press the OPTIONS button again until USAGE and 1 d shows
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on the display.
HEATING
HOLD
3. The time shown on the display is the number of hours it was
°F
USAGE
SET TEMP
SET TEMP
°F
°F
heating today.
°F
CYCLE
SET BACK
FLOOR
4. Press the down or up button to toggle between the previous
CYCLE
CYCLE
FLOOR
FLOOR
LIMIT
FLOOR
1-day, 7-day, and 30-day usages.
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5. Press the HOLD/RETURN button or wait 15 seconds and the
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thermostat will return to the normal operating mode.
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HOLD
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A
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HEATING
SET TEMP
SET TEMP
Lockout Feature
°F
°F
USAGE
°F
Your thermostat has the ability to lock out adjustment by other users. This
CYCLE
FLOOR
LIMIT
FLOOR
may be useful in public locations. Only the on/off switch and the GFCI test
SET BACK
CYCLE
FLOOR
button will then operate.
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1. Press the down and up button at the same time and hold for 1 second.
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HEATING
LOCK will show on the display.
USAGE
2. To cancel this lockout, the down and up button must be pressed and held
°F
for 1 second. The thermostat will return to the normal operating mode.
SET BACK
CYCLE
FLOOR
Test the GFCI
There is a GFCI (Ground Fault Circuit Interrupter) inside the thermostat. It
is designed to help protect people from possible electrical shock if the floor
warming system has been damaged.
To make sure the GFCI is operating, test it after it is installed and once each
month:
1. Make sure the thermostat is HEATING. You may need to increase the
setpoint temporarily.
2. Press the GFCI Test button on the side of the thermostat. GFCI TRIP
should show on the display and a red light will show next to the GFCI Test
button. You should also hear a click, indicating power has been removed
from the floor warming system. If any of these indicators fail, turn off the
thermostat and replace it. Do not continue to use.
3. To reset the GFCI, slide the On/Off switch off and back on. If the
GFCI does not reset, turn the thermostat off and go to section 6
"Troubleshooting" for help.
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6. Troubleshooting
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HOLD
SET TEMP
SET TEMP
°F
°F
CYCLE
Thermostat works
FLOOR
LIMIT
FLOOR
but no heat from the
system.
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HEATING
No display.
USAGE
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°F
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SET BACK
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CYCLE
GFCI is tripped.
FLOOR
°F
Heating occurs at
wrong times.
CYCLE
FLOOR
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Er 1 (only at startup)
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HOLD
Er 2
SET TEMP
SET TEMP
°F
°F
Er 3
CYCLE
FLOOR
LIMIT
FLOOR
Er 4 or Er 5
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HEATING
Er 6
USAGE
°F
°F
SET BACK
CYCLE
CYCLE
FLOOR
Er 7
7. Specifications
Power Supply
Maximum Load
Maximum Power
GFCI
Display Range
Setting Range
Accuracy
Storage Temp
Sensor
Memory
ETL Listing
Limited Warranty
to be free from defects in material and workmanship for a period of two (2) years
from the date of original purchase from authorized dealers. During this period,
proven to be defective in normal use. Please return the thermostat to your
distributor to begin the warranty process.
This limited warranty does not cover shipping costs. Nor does it cover a product
subjected to misuse or accidental damage. This warranty does not cover the cost of
installation, diagnosis, removal reinstallation, or any material costs or loss of use.
This limited warranty is in lieu of all other warranties, obligations, or liabilities
liable for consequential or incidental damages resulting from installation of this
product. Some states or provinces do not allow limitations on how long an implied
warranty lasts, or the exclusions or limitations may not apply to you. This warranty
state to state.
In oor Sales & Service SW
503 Gregg Drive
Buena Vista, Co 81211
(800) 608-0562
www.in oor.com
Problem
Solution
1. Check wiring connections.
2. If GFCI is tripped, reset thermostat with on/off switch.
3. Check resistances on floor warming system. See
manual for system.
1. Check wiring connections.
2. Check circuit breaker or other protection "upstream" of
thermostat.
1. Check wiring connections.
2. Reset thermostat by switching off/on.
3. Check resistances on floor warming system. See
manual for system.
1. Check that the current time and schedule times are
properly set to AM or PM.
2. On uninsulated concrete SmartStart may start heating
very early. You may turn this feature off if not desired.
Floor sensor not correct type or out of range. Check floor
sensor resistance.
Floor sensor short-circuited. Turn off power at breaker and
replace sensor. Or Reset Factory Defaults (section 4).
Floor sensor not attached and thermostat in floor sense
mode. Turn off power at breaker and attach sensor. Or
Reset Factory Defaults (section 4).
Internal air sensor is faulty. Replace thermostat or
operate in floor sense mode.
Internal temperature overlimit. Make sure sunlight is
not directed at the thermostat or other heat source in
proximity. Otherwise, Turn off power at breaker and
contact factory.
"End-of-life" indication. GFCI will no longer function
correctly or safely. Reset the circuit breaker or replace
thermostat.
120/240 VAC, 50/60 Hz
15 amps, resistive
1800 watts at 120 VAC
3600 watts at 240 VAC
Class A (5 milliamp trip)
32 °F to 140 °F (0 °C to 60 °C)
40 °F to 99 °F (4 °C to 37 °C)
± 0.9 °F (0.5 °C)
0 °F to 120 °F (0 °C to 49 °C)
Thermistor, 10k NTC, double-insulated
Programming retained indefinitely
Current time and day will need re-set
if power is lost more than 30 minutes.
Control No. 3037530
Conforms to UL 873, UL 943, CSA C22.2 No.
24, and CAN/CSA C22.2 No. 144
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