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REMKO GPM
The units offer the benefit of a
modulating mode of operation,
i.e. the produced heat output and
accordingly the gas flow rate (fuel
consumption) vary depending on
the heat demand.
With a reduced room heat
demand, the hot air heater
consumes less fuel, whereby its
efficiency is increased up to 94%.
Intrinsic safety
An increase in efficiency at
minimum output is achieved by
the use of a modern air/gas mixing
technology and simultaneous
regulation of the combustion air
and gas flow rate.
This technology increases the
safety of the unit as the gas valve
supplies the fuel depending on
the air flow rate according to its
factory setting.
In contrast to an atmospheric
burner, the CO2 content remains
the same over the entire control
range of the units and allows
an increase in efficiency with a
reduced heat output.
If there is no combustion air, the
valve does not release any gas.
With a reduction of combustion
air, the gas valve automatically
reduces the gas volume and keeps
the combustion parameters at an
optimal level.
Minimal pollutant emissions
The premixing burner allows in
conjunction with the air/gas valve
“clean” combustion with very low
pollutant emissions.
EfficiencyOperating cycle
Burner operation
The heat demand for starting the
burner takes place via the set value
of the room temperature sensor in
the temperature control ATR-6.
For units both with and without
temperature control, the burner is
only started when the contact 7+9
on the terminal strip M1 is closed.
On receiving a heat demand,
the control board first starts the
burner fan so that the combustion
chamber is pre-aerated for a
certain time.
After pre-aeration, the control
board activates the flame
monitoring device ACF for igniting
the burner by energising the gas
solenoid valve EV1 and EVP, which
supplies the ignition gas burner.
In this way, the gas burner is
started.
The ignition monitoring electrode
monitors correct ignition of the
ignition gas burner.
When this operating condition is
detected, the control device of
the main gas valve EV2 opens to
supply the actual main gas burner.
After a certain time, while both
burners (ignition and main gas
burners) are operating at the
same time, the control board de-
energises the solenoid valve EVP,
whereupon the ignition burner
extinguishes.
Flame monitoring for supervision
of the main gas burner is
continued by the monitoring
electrode.
The start program switches on the
main gas burner with an average
heat throughput of about 70%.
After about 30 seconds, the
burner starts to modulate the gas
flow rate and finally reaches the
adjusted gas flow rate.
During operation, the control
board regulates the gas flow rate
of the burner proportional to the
circulation air temperature, which
is measured by the NTC1 sensor at
the rear of the unit.
Luft
Abgase
Gas
EV1EV2
EVP
HW080909
Exhaust gases
Air
Gas
8


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REMKO GPM 55 User Manual - German - 44 pages

REMKO GPM 55 User Manual - Dutch - 44 pages

REMKO GPM 55 User Manual - French - 44 pages


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