Lockout Feature
Your thermostat has the ability to lock out adjustment by other users. This
may be useful in public locations. Only the on/off switch and the GFCI test
button will then operate.
1.
Press the down
and
up button at the same time and hold for 1 second.
LOCK
will show on the display.
2.
To cancel this lockout, the down and up button must be pressed and held
for 1 second. The thermostat will return to the normal operating mode.
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.
Limited Warranty
Watts Radiant, Inc. warrants this thermostat control and sensor (the product)
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, Watts Radiant, Inc. will replace the product or refund the original
cost of the product at Watts Radiant’s option, without charge, if the product
is proven 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 or reinstallation, or any
material costs or loss of use.
This limited warranty is in lieu of all other warranties, obligations, or liabilities
expressed or implied by the company. In no event shall Watts Radiant, Inc.
be 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 exclusion or limitation of incidental or
consequential damages, so the above exclusions or limitations may not apply
to you. This warranty gives you specific legal rights and you may also have
other rights that vary from state to state.
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.
When heat is called for,
HEATING
will show on the display and
full power is supplied to the floor warming system. This also
signals to turn on any SunStat Relays that may be connected to
your thermostat.
7. Specifications
Power Supply
120/240 VAC, 50/60 Hz
Maximum Load
15 amps, resistive
Maximum Power
1800 watts at 120 VAC
3600 watts at 240 VAC
GFCI
Class A (5 milliamp trip)
Display Range
32 °F to 140 °F (0 °C to 60 °C)
Setting Range
40 °F to 99 °F (4 °C to 37 °C)
Accuracy
± 0.9 °F (0.5 °C)
Storage Temp
0 °F to 120 °F (0 °C to 49 °C)
Sensor
Thermistor, 10k NTC, double-insulated
Memory
Programming retained indefinitely
Current time and day will need re-set
if power is lost more than 30 minutes.
ETL Listing
Control No. 3037530
Conforms to UL 873, UL 943, CSA C22.2 No.
24, and CAN/CSA C22.2 No. 144
6. Troubleshooting
Problem
Solution
Thermostat works
but no heat from the
system.
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.
No display.
1. Check wiring connections.
2. Check circuit breaker or other protection “upstream” of
thermostat.
GFCI is tripped.
1. Check wiring connections.
2. Reset thermostat by switching off/on.
3. Check resistances on floor warming system. See
manual for system.
Heating occurs at
wrong times.
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.
Er 1 (only at startup)
Floor sensor not correct type or out of range. Check floor
sensor resistance.
Er 2
Floor sensor short-circuited. Turn off power at breaker and
replace sensor. Or Reset Factory Defaults (section 4).
Er 3
Floor sensor not attached and thermostat in floor sense
mode. Turn off power at breaker and attach sensor. Or
Reset Factory Defaults (section 4).
Er 4 or Er 5
Internal air sensor is faulty. Replace thermostat or
operate in floor sense mode.
Er 6
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.
Er 7
“End-of-life” indication. GFCI will no longer function
correctly or safely. Reset the circuit breaker or replace
thermostat.
Temporarily Overriding the Temperature
You can temporarily adjust the temperature setpoint as follows. This will hold
until the next scheduled program time:
1.
Press the down or up arrow button and hold for 1 second to adjust the
setpoint temperature.
2.
Wait 5 seconds and the thermostat will return to the normal operating
mode, saving your adjustment.
3.
To cancel this temporary override and return to the normal
schedule temperature, press the HOLD/RETURN button briefly.
Hold a Selected Temperature
You can hold the current setpoint temperature indefinitely,
especially useful when you are on vacation.
1.
Press the HOLD/RETURN button and hold for 1 second.
HOLD
will show on
the display and the setpoint temperature shown will be maintained until you
cancel this hold.
2.
To cancel this hold, press the HOLD/RETURN button and hold for 1 second.
HOLD will disappear from the display.
3.
Press Hold/Return briefly and the thermostat will return to the
normal schedule temperature.
Setback
You can use the Setback button to override the current setpoint
temperature. This is especially useful if you have an alternate
temperature you repeatedly select when you are away.
1.
Press the SETBACK button briefly.
SETBACK
will show on the display and
its temperature. This setpoint will hold until the next scheduled program time.
2.
To hold this Setback temperature indefinitely, press the HOLD/RETURN
button and hold for 1 second. To cancel this hold, press the HOLD/RETURN
button again and hold for 1 second.
3.
To cancel this Setback temperature and return to the normal schedule
temperature, press the SETBACK button briefly.
To change the temperature stored in the SETBACK button:
1.
Press the SETBACK button and hold for 1 second.
SETBACK
will show on
the display and its temperature should be blinking.
2.
Press the down or up button to adjust the temperature.
3.
Press the HOLD/RETURN button or wait 5 seconds and the thermostat will
return to the normal operating mode, saving your adjustment.
Remote Control Override
If your thermostat was installed with Remote Control input from a home
automation system (see section 2
“
Installation
”), this will override the
thermostat when the remote control system closes its output switch or relay.
SETBACK
and
HOLD
will show on the display and it will operate in the Setback
temperature indefinitely. To cancel this, the Remote Control switch or relay
must be opened.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Usage
Your thermostat stores in memory the number of hours it is heating. This
information may be useful in calculating the energy used by your floor warming
system.
1.
Press the OPTIONS button and hold for 1 second.
2.
Press the OPTIONS button again until
USAGE
and
1 d
shows
on the display.
3.
The time shown on the display is the number of hours it was
heating today.
4.
Press the down or up button to toggle between the previous
1-day, 7-day, and 30-day usages.
5.
Press the HOLD/RETURN button or wait 15 seconds and the
thermostat will return to the normal operating mode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Air Sensing and Regulator Modes
Your thermostat is factory set to operate based on the floor sensor
temperature. This is the recommended method to properly control your floor
warming system.
However, it is also possible to also operate your thermostat in either the air
sensing mode or regulator mode temporarily if the floor sensor was damaged
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
temperature
.
• 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
”)
If you want it to operate in the air sensing mode or regulator mode, you may
change this as follows:
1.
Press the OPTIONS button and hold for 1 second.
2.
Press the OPTIONS button again until
SENS
shows on the
display.
3.
Press the down or up button to toggle this to
Air
or
rEGu
.
4.
Press the HOLD/RETURN button to return to the normal
operating mode.
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.
To avoid possibly overheating your floor, you must set a Floor Limit temperature
so it turns off the system if the floor sensor temperature exceeds this Floor
Limit. Some wood and laminate floor manufacturers recommend a maximum
of 82 to 84°F (27° to 28°C). Check with manufacturer. It is factory set to 99F
(37C) and can be adjusted as follows:
1.
Press the OPTIONS button and hold for 1 second.
2.
Press the OPTIONS button again until
SET TEMP
and
FLOOR
LIMIT
shows on the display with the current Floor Limit temperature.
3.
Press the down or up button to adjust this.
4.
Press the HOLD/RETURN button to return to the normal operating
mode.
Calibration
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:
1.
Press the OPTIONS button and hold for 1 second.
2.
Press the OPTIONS button again until
CAL
shows on the display
with the current sensor temperature and the current offset value.
The offset value is factory set to zero.
3.
Press the down or up button to adjust this.
4.
Press the HOLD/RETURN button to return to the normal
operating mode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
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.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
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.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TUWE THFR SASU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TUWE THFR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
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
heating time and the current cycle time.
2.
Press the down or up button to adjust the heating time from 0
through 15.
• Example: A value of 6 will cause it to heat for 6 minutes of
the 15 minute cycle, and then not heat for 9 minutes of the 15
minute cycle.
• Zero will cause it to never heat.
• 15 will cause it to heat continuously.
3.
The cycle time shown at the bottom of the display is the current time in the
15-minute cycle. It repeats from 0:00 through 14:59 (min:sec).
PPLIMP08001 IND
© 2007-2010
WR_SunStat_Manual_Programmable
EN
20100209
Effective: 02/09/2010
