• Recording a setpoint temperature for the (ECONOMIC) setting
Select chosen setpoint temperature by using
and
buttons.
Keep pressing on the button (2 to 3 seconds) until icon appears
on display.
NOTE:
When the temperature setting used is or , you can still
use the or
buttons to change the setpoint temperature without
changing the recorded temperature.
• Recalling stored setpoint temperatures
Once stored, both setpoint temperatures can be recalled simply by
selecting the or button.
CHOOSING THE TEMPERATURE SCALE IN °C (CELSIUS)
OR °F (FAHRENHEIT) TO APPEAR ON DISPLAY.
To choose the temperature scale, press the
button while pressing
and releasing the RESET button. Then release the
button.
CHARACTERISTICS
Model:
500500-120 (120 VAC)
Supply:
120 VAC, 50/60 Hz
Load:
16.0 A maximum (resistiveonly)
Power:
1920 W at 120 VAC
Ground fault circuit interrupter (GFCI): Class A (5 MA TRIP LEVEL)
Approvals:
CSA NRTL/C
Display range:
0° to 60°C (32°C to 99°F)
Setting range:
10° to 50°C (50°C to 99°F)
Default setting:
30°C (86°F)
Default setting:
10°C (50°F)
Storage:
–20°C to 50°C (–4°F to 120°F)
Temperature regulation:
1°C (2°F)
Precision:
±0.5°C (1°F) (1920 W)
WARR
ANTY
WATTS RADIANT, INC. ONE (1) YEAR LIMITED WARRANTY
This product is warranted against material defects and workmanship
innormal use for a period of one year, from the date of the original
purchase from authorized dealers. During this period, Watts Radiant,
Inc. will repair or replace the product with a new or of equivalent
quality at Watts Radiant, Inc. option, without charge, any product
proven defective in normal use.Warranty does not cover transpor ta-
tion costs. Nor does it cover a product subjected to misuse or
accidental damage. This warranty does not cover the cost of installa-
tion, removal or reinstallation.
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
which var y from state to state.
The defective product and the original sale receipt must be returned
to the original dealer or shipped pre-paid, insured, and addressed to:
Watts Radiant, Inc.
3131 W. Chestnut Expwy.
Springfield, MO 65802
If you have any questions concerning the installation or programming
of this product, please call technical assistance at 417-864-6108.
POWER UP
To power up thermostat:
When power is applied for the first time, the display must show the
floor temperature. Other information might show up on the display if
installation is defective or does not comply with the instructions. The
warning light (GFCI) must be off.
The message L0 will appear on the display
if the temperature sensor is not hooked up,
is in default or the temperature is below 0°C
(32°F). Also, the heating indicator will be
present on display and the relays will be
close (current going in the load).
The message E1 will appear on the display
if the temperature sensor is shor t-circuited.
The message HI will appear on the display
if the temperature is higher than (99°F).
If anything else appears on the display,
press the button as you press and
release the RESET button.
CHECKING GROUND FAULT CIRCUIT INTERRUPTER (GFCI)
Adjust the setpoint temperature
until heating indicator ( )
appears on display. Press TEST
button. The test is conclusive if
the warning light (GFCI) on the
thermostat is ON and power to
the load is cut-off. If these
events do not occur, check the
installation. Press on RESET
button to reset the GFCI.
If the GFCI test fails:
Check the load wires. The ther-
mostat must be in heating mode
to carr y out the test (heating
indicator ON).
The GFCI test should be carried
out monthly. If the test fails,
cut off the electric power to the
heating system and call cus-
tomer ser vice or return the
thermostat to your supplier for
verification. If the warning light
comes on during normal opera-
tion, cut off power to the heating
system and have an electrician
verify the installation.
OPERATION
The thermostat has 4 different buttons to control the floor temperature.
The
and
buttons increase or decrease the setpoint temperature.
The and buttons are used to store and recall two temperature
settings.
• Default values
To erase the recorded setting temperatures ( and ) and replace
their values by the default ones, 30°C (86°F) and 10°C (50°F)
press the button while pressing and releasing the RESET button.
Then release the button.
• Setting a setpoint temperature
Press once the or button to see the setpoint temperature on
display. Ever y subsequent press will change the setpoint temperature
by one degree.
• Recording setpoint temperature for (COMFORT) and (ECO-
NOMIC) settings
By recording two setpoint temperatures you will be able to go from
the setting to the setting by simply pressing the or button.
• Recording a setpoint temperature for the (COMFORT) setting
Select chosen setpoint temperature by using
and
buttons.
Keep pressing on the button (2 to 3 seconds) until icon appears
on display.
02/01/2003
720-111716
920-111-014-00-1-A
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