REMKO GPS Series User Manual

8
REMKO GPS series
Cycle of operation
The units from the GPS range are fully-automatic hot
air heaters, which are equipped with an electronic
device with self-testing. This guarantees a high degree
of reliability and safety.
Burner operation
The burner is ignited when the following
preconditions are fulfilled:
■ The unit is supplied with power and is not in a fault
shut-down state (lock-out)
■ The gas supply valve is open
■ The toggle switch on the control panel is switched
to the “I=Winter” position
■ The thermostat contact is closed
■ The contact between terminal 34 and 35
on the GPS board is closed
Under these conditions, the burner fan starts
immediately. After the pre-flushing process is
complete, the flame is ignited with an ignition
output that is 30 % of the maximum output. After
subsequently waiting for the stabilisation phase to
pass, the burner runs up to maximum output.
If the flame cannot be ignited then 4 further
ignition attempts take place. With the fifth ignition
attempt, the GPS board triggers a fault shut-down.
If the burner ignites, the cooling fan starts up after
30 seconds and conveys the warm air into the room.
In order to switch the hot air heater off, the switch
on the control panel must be set to the “0” position.
It is prohibited to switch off the unit by disconnecting
the power supply. This process must be used
exclusively in emergencies. With an instructed switch-
off of the hot air heater, the burner fan continues
to operate for a further 90 seconds, in order to flush
the burner chamber of flue gases. The cooling fan
runs on for 120 seconds after the switch-off, to
ensure that the heat exchanger “cool down” takes
place. If the cool down process is not completed then
this reduces the service life of the heat exchanger and
therefore also invalidates the guarantee. Furthermore,
the safety thermostat may also be triggered and
necessitate a manual reset.
If, during the cool down phase, a new heating request
is issued then the unit waits until the cooling fan has
switched off, performs a reset and then starts a new
heating cycle.
Efficiency
The advantages of the units lie in the 2-stage mode
of operation, meaning the heat output created and
thus the gas flow (consumption of fuel) are changed
corresponding to the heating stage.
With a reduced heat requirement of the room,
the fan-assisted heater consumes less fuel, whereby
its efficiency is increased by up to 94%.
Intrinsic safety:
The increase in efficiency with minimum output is
achieved through the use of a modern air/gas mixture
technology and the simultaneous flow rate regulation
of combustion air and gas.
This technology increases the safety of the unit,
because the gas valve feeds the fuel depending on
the amount of air in accordance with its factory
settings.
Unlike atmospheric burners, the CO
2
content
remains the same through the entire operating range
and allows an increase in efficiency with reduction
of the heat output.
With no combustion air, the valve does not release
gas.
With reduction of the combustion air, the gas valve
automatically reduces the amount of gas and keeps
the combustion parameters at an optimal level.
Luft
Abgase
Gas
EV1EV2
EVP
HW080909
Flue gases
Air
Gas

REMKO GPS Series Specifications

General

Brand	REMKO
Model	GPS Series
Category	Heater
Language	English