Bedienungsanleitung REMKO GPM 35 (Seite 8 von 44) (Englisch)

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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

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REMKO GPM 35 Seite 8

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