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Important!
5
ALWAYS
ensure all earth leads are connected to the earth ring.
ALWAYS
ensure that the electric circuit that supplies electricity to the Warmup
®
Underlaminate heating system is equipped with a 30mA residual current
device (RCD).
ALWAYS
connect all cold wire leads from the Warmup
®
Underlaminate foil heating
mats in parallel inside an electrical junction box or boxes.
ALWAYS
ensure that the total current needed for all mats connected in parallel
is not more than 80% of the listed amperage capacity of the electrical
junction box and its power supply line and breaker (For advice consult
your recommended Part P qualified electrician).
ALWAYS
provide each room with an Warmup
®
Underlaminate foil heating system with
its own electrical junction box and control thermostat. Each Warmup
®
thermostat
has a maximum capacity of 16 Amps. If the amount of Amps in the room is
greater than 16 Amps, divide the amperage over several thermostats.
(To calculate the amount of Amps in the room see tables in page 16).
ALWAYS
use insulation under the mats to reduce running costs and warm-up
time. Check with your installer to determine the R value of the sub floor
insulation layer. If there is no insulation, or if the R value of the insulation
layer is lower than 0.57ft
2
*h*°F/Btu (0.1m
2
*°C/W or 1 Tog), please read
the insulation instructions on page 6 and act accordingly.
ALWAYS
ensure that no sharp edges (e.g. metal-edged laminate locking systems)
come in contact with the foil heating.
ALWAYS
fit the floor sensor and ensure that the thermostat is set for the correct
heater type and floor finish.
ALWAYS:
Note: Timber products often have a limitation on the maximum temperature allowed for floor heating- This
is usually around 27ºC. Check with your flooring supplier what the limitations are for your preferred floor
finish.
As with all electrical projects which are subject to Part P Building Regulations, all electrical work should be
carried out by a certified/qualified electrician.
All work must conform to BS 7671:2008 and the current IEE Wiring Regulations.