STIEBEL ELTRON FTM S twin 01.05.2006 - 07.04.2008 - Manual (Page 8)

8
1. Operating instructions
for the user and the professional
The installation and use of electrical appliances
must be carried out with due caution in order
to avoid the risk of fire, electric shock or injury.
The equipment must only be used as described
in these instructions. Any use outside of the
manufacturer recommendations could lead to
damage, fire, shock or injury.
Before using the appliance the instructions
should be read in their entirety and all ap-
propriate handling of the equipment must be
observed.
These instructions should be kept safe-
ly and passed on to any future owner.
In the event of any repair work, hand them
to the qualifi ed installer for his attention.
1.1 Description of the unit
Stiebel Eltron underfloor heating mats, heat
up floors without long delays in heating-up
time, and therefore offer an increase in living
comfort. They can be used in combination
with other heating systems, which are already
installed.
They are easily laid beneath the top covering
of the floor using the tile-bonding agent - with
a levelling compound in the case of other
floor coverings.
The floor temperature is controlled using wall-
mounted thermostats produced by Stiebel
Eltron (observe the operating and instal lation
instructions for the thermostats).
If Stiebel Eltron original thermostats are not
used, care must be taken to ensure that the
thermostats used do not permit a floor tem-
perature of 40 °C to be exceeded.
1.1.1 Control
For accurate control of the floor temperature,
a floor temperature probe (within the scope
of supply of the floor thermostat), which can if
necessary be replaced, is laid with the heated
mat.
Positioning of the temperature probe
The position of the floor temperature probe
should be determined (See page 2), so as to
avoid false temperature measurements.
Possible sources of readings are:
• covering of the probe zone, e.g. by a cup-
board (heat accumulation within the sensor
range results to a lower temperature in that
area)
• heat build-up, through covering the biggest
area of the floor, e.g. with a rug, but not
over the probe zone.
1.2 What shall I do if.....
the fl oor doesn’t heat up when the
thermostat is activated?
• Check whether the fuses for the thermo stat
are defective or the fault-current circuit
breaker switch has been tripped.
If the floor still fails to heat up after inserting
the fuse or switching on the fault-current
circuit breaker switch, call a qualified installer.
•
If the tile-bonding agent has not dried out
completely, heating up time can be increased.
Technical data
Under-fl oor heating mat
150 W/m 2 ; 3 mm thick
FTM 150 S
twin
FTM 225 S
twin
FTM 300 S
twin
FTM 375 S
twin
FTM 450 S
twin
FTM 600 S
twin
FTM 750 S
twin
Dimension L x B mm 2000 x 500 3000 x 500 4000 x 500 5000 x 500 6000 x 500 8000 x 500 10000 x 500
Area m 2 1,0 1,5 2,0 2,5 3,0 4,0 5,0
Connection 1/N/PE ~ 230 V 50 Hz
Output W 150 225 300 375 450 600 750
Toltal resistance Ohm ( +10 %
-5 %
) 353 235 176 141 118 88 71
Rated limit temperature ºC 90
Protection class I, II
Under-fl oor heating mat
150 W/m 2 ; 3 mm thick
FTM 900 S
twin
FTM 1050 S
twin
Dimension L x B mm 12000 x 500 14000 x 500
Area m 2 6,0 7,0
Connection 1/N/PE ~ 230 V 50 Hz
Output W 900 1050
Toltal resistance Ohm ( +10 %
-5 %
) 59 50
Rated limit temperature ºC 90
Protection class I, II