10
REMKO GPM
Modulation
The gas wall heaters are units
with flame modulation, whereby
the widest range of outputs
between the minimum and
maximum settings is possible
during operation. The highest
output serves for raising the
room temperature quickly when
switching on the units.
With the modulation of the
flame, on the other hand, the
desired room temperature can
be maintained at a constant by
continuously changing the heat
output corresponding to the actual
requirement.
Thanks to the reduction of the
supply air temperature, the
physical emergence of layer
formation (tendency of the heat
to rise) can be limited with this
automatic adjustment of the heat
output to the requirements of the
room.
The temperature differences per
meter lie under 0.5 °C.
If the units work with a reduced
heat flow rate, efficiency of over
94% is achieved.
These results can only be achieved
through a precise monitoring of
the climactic spatial conditions and
an optimal control of the unit.
With the dimensioning of heating
systems with fan-assisted air
heaters, it is important to observe
the number of hourly air renewals.
In this regard, we would like to
point out the following:
Fan-assisted air heaters should, in
general, be arranged so that the
air flow rate ensures an air renewal
of at least twice hourly, even if this
would not be necessary for the
heat output. The units are serially
equipped with a room temperature
sensor on the rear side of the unit
so that the intake temperature of
the fans is monitored.
The modulation takes place
according to the value measured
by this sensor in relationship to
the pre-adjusted value on the
microprocessor of the control PCB.
The optimisation of the modulation
temperature value must take place
during operation of the system
and depends on the distance of
the fan-assisted air heater to the
floor and the required temperature
conditions.
The fan-assisted air heater is
normally installed at a distance of
2.5 - 4 m from the floor.
Thus the desired comfort
temperature should be reached
and maintained, whereby it should
be ensured that the units are
operated at the lowest possible
modulation temperature that
is necessary to maintain these
conditions.
The modulation temperature value
is set to 21°C at the factory.
This value enables a mid-level
installation range between 3 and
5 metres with room temperatures
between 17 and 18°C (see graph
below).
To change the modulation value
"REG SAN" on the electronic
temperature regulation ATR-6
and to read the modulation
temperature "TMP MANDATA"
with the electronic temperature
regulation, see the chapter on
instructions for the user.
Target
value at
height of
1.5m
Installation height
in meters
2.5
3
4
5
15°
16° 17° 18° 19°
16°
17° 18° 19° 20°
17°
18° 19° 20° 21°
18°
19° 20° 21° 22°
19°
20° 21° 22° 23°
20°
21° 22° 23° 24°
Kurve 1:1
korrigierte Kurve
Luftdruck (-durchsatz)
G
as
dr
uc
k
(-d
ur
ch
sa
tz
)
90
91
92
93
94
95
96
65
70
75
80
85
90
95 100
Wärmedurchsatz [%]
W
irk
un
gs
gr
ad
%
18
20
22
24
26
28
Wirkungsgrad
D
Luft
t
D
Zu
lu
ft
t
ATTENTION
Unit parameters can only be
changed in combination with
the electronic temperature
control ATR-6.
