HMY110/HMY220
400-619-000-E 4/20/07 4/4
5.2 Floor temperature limit for laminate and engineered floors
WARNING
: THE FLOOR TEMPERATURE LIMIT
MUST
BE SET TO
'LIMITED' FOR ALL LAMINATE AND ENGINEERED WOOD FLOOR
APPLICATIONS.
You must limit the floor temperature as shown in the following table.
The temperature limit switch is on the front of the thermostat, above
the temperature sensor terminals. (You may need to remove the wall-
plate to expose the switch.)
The GFCI protects against risks of electrocution caused by a current
leakage. If the leakage current exceeds 5 mA, the GFCI will automat-
ically trigger, thus cutting power to the floor heating system. To indi-
cate the fault, the
Test
and
Reset
buttons will illuminate.
To ensure that the GFCI is always in working order, test it once the
thermostat is installed and on a monthly basis thereafter.
n
Increase the setpoint temperature sufficiently to start heating.
o
Wait for about 5 seconds until the heating power indicator
appears on the screen.
p
Press the
Test
button.
Successful
: The
Test
and
Reset
buttons illuminate. This means
the GFCI is working and has cut power to the heating system.
Press the
Reset
button to return power to the heating system
(the
Test
and
Reset
button lights will go off). Return the temper-
ature setpoint to the desired value.
Unsuccessful
: The
Test
and
Reset
button lights flash. This
means the GFCI is defective and will not provide any protection.
The button lights will continue to flash until the thermostat is
replaced.
WARNING
: If the
Test
and
Reset
buttons illuminate during normal
operation, check if the fault was caused by external interference such
as a halogen light or an electric motor. In this case, reset and test the
GFCI. However, if the fault occurs again for unknown reasons, cut
power to the heating system from the main electrical panel and have
the installation verified by an electrician.
If the power failure exceeds 2 hours, only the thermostat’s clock must
be re-adjusted. When power returns, the thermostat returns to the
mode of operation preceding the power outage.
Display range
: 32°F to 140°F (0°C to 60°C)
Display resolution
: 1°F (0.5°C)
Minimum setpoint
: 40°F (5°C)
Maximum setpoint
: 82 or 104°F (28 or 40°C)
depending to the thermostat configuration
Setpoint interval
: 1°F (0.5°C)
Storage temperature
: -4°F to 120°F (-20°C to 50°C)
Dimensions (HxWxD)
: 2.7 x 3.5 x 2 inches (69 x 89 x 52 mm)
GFCI rating
: 5 mA Class A
Approval
: c CSA us
NUHEAT INDUSTRIES ONE (1) YEAR LIMITED WARRANTY
This product is guaranteed against workmanship defects for a one-year
period following the initial date of purchase. During this period, NUHEAT
will repair or replace, at our option and without charge, any defective
product which has been used under normal conditions.
The warranty does not cover delivery costs and does not apply to prod-
ucts poorly installed or randomly damaged before, during or after installa-
tion. This warranty cancels and replaces any other manufacturer's
express or implied warranty as well as any other company commitment.
NUHEAT cannot be held liable for related or random damages before,
during or after the installation of this product. The defective product as
well as the purchase invoice must be returned to the place of purchase or
mailed, prepaid and insured, to the following address:
Switch Position
Floor Types
Temperature Limit
Normal
ceramic, concrete
104°F (40°C)
Limited
laminate, engineered wood
82°F (28°C)
s
GFCI Test
6.
t
Power Outage
7.
u
Troubleshooting
8.
PROBLEM
SOLUTIONS
Heating is always On.
Check the thermostat wiring.
Thermostat indicates
that heating is On when
it is not.
Check the thermostat wiring.
Thermostat is hot.
Under normal operation, the thermo-
stat housing may reach a temperature
between 95°F (35°C) and 104°F
(40°C).
Wrong temperature is
displayed.
Verify that the sticker on the thermo-
stat’s screen has been removed.
Temperature does not
change according to the
programmed schedule.
Check that the thermostat is in Auto-
matic mode. Check the schedule and
clock settings.
Time display is flashing.
The thermostat was without power for
more than 2 hours.
The °F or °C does not
appear.
The thermostat has been configured
as a power regulator and therefore
displays the percentage of heating
power instead of the temperature.
v
Specifications
9.
HMY110 model
HMY220 model
Supply
120 VAC, 50/60 Hz 240 VAC, 50/60 Hz
Maximum load
15 A (1800 W)
15 A (3600 W)
;
Warranty
10.
NUHEAT INDUSTRIES LTD.
USA
6920 Salashan Parkway
Building D-200
Ferndale, WA 98248
CANADA
1689 Cliveden Avenue
Delta, BC
V3M 6V5
1 (800) 778-9276
www.nuheat.com
NUHEAT
TM
is a registered trademark of Nuheat Industries LTD.
PROBLEM
SOLUTIONS
400-619-000-E (Nuheat) ENG.fm Page 4 Friday, April 20, 2007 1:32 PM
