REMKO GPS Series User manual

Operating and
installation instructions
Edition EN - Q07 Read the instructions prior to performing any task!
GPS 15, GPS 25, GPS 35, GPS 55, GPS 75
REMKO GPS series
Wall heater with 2-stage gas burner

3
Contents
Safety notes 4
Unit installation 5
Unit description 6-11
Intended use 12
Customer service and guarantee 12
Environmental protection and recycling 12
Installation 13-16
Flue gas connection 17-21
Electrical wiring 22-24
Electrical wiring diagram 25
Gas connection 26
Commissioning 27-28
Maintenance 29-30
Replacement of the control board 30
Replacement of the STB 31
Chimney sweep 31
Replacement of the gas valve 30
Conversion to liquid gas 32
Troubleshooting 34-35
Unit dimensions 36
Exploded view of the unit 35739
Spare parts list 40
Country table of gas types 41
Technical data 42-43
Carefully read this operating manual prior to commissioning /using
the unit!
This operating manual is a translation of the German original.
These instructions are an integral part of the unit and must always be
kept in the vicinity of the installation location or on the unit itself.
Subject to modifications; no liability accepted for errors or misprints!

4
REMKO GPS series
Safety notes
The units have been subjected to extensive material,
functional and quality inspections prior to delivery.
However, dangers can arise from the units if they
are used improperly or not as intended by untrained
personnel!
Please observe the following notes:
■ The units may only be operated by persons
that have been instructed in their operation
■ In case of defects that endanger the operational
safety of the units, operation must be discontinued
■ The units must be installed and operated
so that the emerging flow of warm air does
not have harmful effects on either the units or
the surroundings
■ Do not expose the units to atmospheric influences
(rain, sun, etc.)
■ Do not touch the units with damp or wet body
parts, e.g. hands
■ Protect the units from spray water or other liquids
■ Do not use gas lines for the grounding of electrical
devices
■ Do not touch hot parts of the units, such as the flue
gas pipe
■ Do not touch moving parts of the units
■ Never stick foreign objects into the units
■ The units may only be mounted on stable structures
or ceilings made of non-flammable construction
materials and with sufficient bearing capacity
■ The mounting of the units may only be
executed at the points provided for this purpose
in the factory
■ The units may not be installed or operated in
potentially flammable or explosive environments
Always observe the respective local building
code and fire prevention guidelines as well as
the guidelines of the accident prevention and
insurance associations when using the units.
■ The units must be installed away from traffic
zones - by crane, for example. A safety zone with
a clearance of 1 m must be ensured
■ The protective grid of the intake must always be
kept free of dirt and loose objects
■ The units may not be exposed to direct jets of
water
■ The units must be inspected by a service technician
at least once yearly
■ Safety devices must not be bypassed or disabled!
■ Prior to maintenance or repair work, the gas
supply must be sealed off and the unit must
be disconnected from the mains at all poles.
(Remove fuse and switch off customer-provided
main/emergency shut-off switch)
Preventative measures
with odour of gas
1. Immediately switch off the unit.
2. Close the gas shut-off device(s).
3. Warn all directly endangered persons.
4. Open windows and doors.
5. Do not actuate electrical equipment such as light
switches or electrical plug-in contacts.
6. If the room in which the gas odour has emerged
cannot be entered, immediately contact the fire
brigade, police and the local responsible municipal
gas supplier.
CAUTION
Assembly, adjustment and maintenance work may
only be carried out by authorised and qualified
technicians.
CAUTION
Safety devices may not be bypassed or disabled
during operation.
NOTE
The units are used exclusively for industrial and
commercial applications. They are not intended
for the heating of living spaces or the like.

5
Selection of the installation location
With determination of the installation location,
the requirements must be coordinated in regard to:
■ Fire protection and operational hazard
■ Function: Space heating, underpressure and/or
overpressure in the installation space, etc.
■ Operational concerns, heat requirement, nominal
air flow rate, air recirculation requirement,
humidity, room temperature, air distribution, spatial
requirements
■ Installation, repair and maintenance possibilities.
The units must be installed in such a way that they
are always easily accessible for maintenance and
repair work.
With improper installation and operation, hazards
may arise from the units. Prior to the planning and
during the unit installation, the following points must
absolutely be observed.
■ The units must be installed and operated in such a
way that personnel are not endangered by flue gas
and radiant heat and no fires may occur
■ During installation of the units it must be ensured
that the flow of warm air does not have damaging
effects on the surroundings
■ Fire hazards must be eliminated through
the selection of materials for the installation
and position surfaces. For this purpose, see TRGI,
Section 5.1.3.3
■ The wall or ceiling intended for installation must
also consist of non-flammable materials. Its load
capacity must be checked; reinforcements must
be installed when necessary
■ Brackets must be securely anchored to the wall
or ceiling and the units must be attached to
the brackets at the points provided for this purpose
in the factory
■ Appropriate maintenance possibilities for heat
exchangers, burners, fan and flue gas evacuation
must be planned for
■ It must be possible to actuate control elements
for the units and fuel supply from the ground.
Maintenance and repair possibilities must be
ensured by the operator
Unit installation
Application area
With the REMKO gas wall heaters from the GPS
range, it is possible to heat small rooms, such
as workshops, right through to large spaces such
as industrial warehouses, sports halls, etc.
For efficient heating it is therefore essential to
determine the necessary heat output by professionally
calculating the heat requirement for the respective
space.
General prerequisites
With the installation of the units, the local and
country-specific provisions and guidelines must
be observed in the respective valid version as a basic
rule.
Work such as the following:
■ gas and electrical installation
■ conversion of the gas type
■ commissioning
■ adjustments or maintenance may only be carried
out by qualified technicians
In addition to a faultless electrical and gas installation,
it is also ensured through this measure that all
necessary measurements and test are conducted.
■ The units must be inspected by an authorised
service technician at least once yearly.
For this purpose, concluding a service contract with
a service company is recommended
■ During planning and installation of the flue gas
routeing, the structural possibilities as well as the
applicable local and country-specific regulations
must be consistently adhered to
■ In heavily soiled environments, care and
maintenance measures must be carried out
in accordance with the respective conditions.
The combustion air must be fed from outside
as a basic rule
CAUTION
The units must not be set up or installed in areas
with explosive or corrosive atmospheres.

6
REMKO GPS series
the cable passages for the electrical lines as well as
the plug connection for the power supply. In the right-
hand side section the necessary components for the
control and safety are found behind the inspection
door, including e.g.:
- the electrical circuitry with the cabling
- the control electronics
- the gas valve
- the modulating gas burner
In the interior of the unit, directly in the circulation air
flow, is the combustion chamber with heat exchanger.
The combustion chamber is manufactured entirely
from Inox stainless steel, AISI 430. For the purpose
of higher resistance to corrosion from damp vapours,
Inox stainless steel, AISI 441 is used for the heat
exchanger.
The special form and the large surface area
of the combustion chamber and heat exchanger
guarantee a high level of efficiency and long service
life.
The gas burner is likewise manufactured entirely from
special, mechanically-processed stainless steel.
Function of the units
The 2-stage gas wall heaters of the GPS series have
been developed for the heating of industrial and
commercial spaces.
The electronic control of the unit regulates the heat
output between minimum and high-output according
to the set NTC1 temperature.
With the pre-mix and modulation technology,
efficiency of up to 94% can be achieved.
The nominal heating capacity of the REMKO GPS
series lies between 13.0 and 73.5 kW.
The units consist primarily of the combustion chamber
with heat exchanger and the fan(s).
The ambient air is suctioned in by the fan(s) and
efficiently channelled through the combustion
chamber with heat exchanger. The combustion
chamber is heated by the gas burner operation and
releases its heat to the air flowing past. The air heated
in this manner is blown out of the front side
of the unit through an adjustable outlet grid.
Operation of the unit as intended is only possible
with a connected temperature controller, e.g. ATR-10
(accessory).
Unit description
Definition of the unit
Pursuant to EU Directives, the unit is defined as:
"Gas fan-assisted heater (WLE) without flow-
operated safety device, equipped with a fan in front
of the heat exchanger".
The unit is a fully-automatic, directly-fired fan-assisted
air heater for wall and ceiling installation.
It can be fuelled with natural gas or liquid gas.
The unit is used for continuous and temporary
heating of open and closed spaces, e.g. in:
halls, workshops,
greenhouses,
storage rooms, etc.
Classification of the units
The units have been classified by the European
standardised
regulations EN 437 and EN 1020 according to:
The gas category:
determination according to the type of gases with
which they may be operated.
For Germany DE II2ELL3B/P
The gas type:
the burner can be operated with gases of the second
family (natural gas - group H and L) and with gases
of the third family (butane and propane).
The type of gas fireplace:
differentiation according to the possibilities
of the discharge of the combustion products
or the supply of the combustion air.
(ambient-air-dependent/independent)
Additional notes can be found in the chapter
"Installation of the flue gas evacuation and
the combustion air supply".
Design of the units
The exterior cladding of the units is made from coated
steel sheet, which guarantees durability.
The outlet grid is found in the front section.
In order to ensure an optimal distribution of warm
air in the installation location, the horizontal fins of
the outlet grid can be manually adjusted. On the rear
side of the unit you will find the fan(s) with protection
grid, the connection nozzles for the removal of
the flue gas and supply of the combustion air, the gas
connection nozzles,

7
Safety thermostat(s) with vertical air flow
A safety thermostat (STB) is installed on the units
for each fan, for manual resetting.
If the safety thermostats are triggered then a safety
shutdown is also triggered.
The thermostat is installed in the area of the heat
exchanger in order to monitor the temperature
at its output.
The disabling of the unit caused by the triggering
of the safety thermostat is displayed by the error
indicator light on the front of the unit.
Air/gas premix
The units are equipped with a burner with complete
air/gas premix.
This mixing process takes place in the fan
of the burner motor. The air suctioned in by
the fan flows through the Ventura tube, where an
underpressure is created, which draws in the gas.
In the process, a constant air/gas mixture is created.
The ratio of air and gas pressure is 1:1.
This value can be changed through the offset
regulating screw found on the gas valve.
The amount of gas is already adjusted upon delivery
of the units and the screw is sealed.
With the adjusting screw located at the Venturi tube,
a fine adjustment can take place, which regulates
the maximum gas flow rate and thus determines
the carbon dioxide (CO2) content of the flue gases
The screw is not sealed in order to enable conversion
of the fan-assisted air heater to another type of gas.
PLEASE NOTE:
For the offset and CO2adjustment.
The control board of the units enables the speed
regulation of the burner motor with DC depending
on the heat output required in the space.
By changing the speed the air flow rate and thus
the gas flow rate are changed.
Minimum and maximum speeds of the fan are
two values that cannot be changed.
Fans
The switching on of the fans is time-controlled
by the control board, whereby the timing begins with
the switching-on of the main burner.
The delayed switch-on prevents cold air from being
blown into the room.
Switching off the unit
If there is no longer a heat requirement (room
temperature above the adjusted setpoint value),
the control board switches off the burner.
The burner fan runs for the secondary ventilation
of the combustion chamber for a fixed, pre-set time.
The fan(s) likewise run afterwards on a time-
controlled basis until the heat exchanger is cooled.
If a new heat requirement should take place during
the follow-up phase, the control board will wait for
the fans to switch off and then proceed with a reset
and begin a new cycle.
CAUTION
Before resetting safety equipment, the cause
of the trigger must be identified and rectified.
NOTE
Safety devices may not be bypassed or disabled
during operation of the unit!
IMPORTANT NOTE!
The interruption of the current supply during burning
operation or in the follow-up cooling phase is not
permitted, because lack of a secondary ventilation
of the heat exchanger can lead to significant damage:
■ Overheating of the unit with the resulting
expiration of the guarantee
■ Damage to the fan of the burner and its
components
■ Tripping of the safety thermostat and the
associated lock-out of the safety thermostat (STB).
Therefore no new unit start without manual
resetting
■ Damage to electrical lines
NOTE
The model with vertical air flow must be specified
at the time of order placement, because the probe
is not installed as standard.

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 CO2content
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

9
Modulation
The gas wall heaters are units with 2-stage gas burner
modulation, whereby outputs between the minimum
and maximum settings are possible during operation.
The highest output serves for raising the room
temperature quickly when switching on the units.
The second stage enables a slower heat-up speed
of the space, which means that the burner is required
to switch on and off less often. Furthermore, the air is
heated less heavily due to the lower heat output,
which limits the physical emergence of layer formation
(tendency of the warm to rise).
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, please note the following: Gas wall
heaters should, in general, be arranged so that the air
flow rate ensures air recirculation at least twice hourly,
even if this would not be necessary for the heat
output.
Minimal pollutant emissions:
The premix burner provides for "clean" burning with
low pollutant emissions with the air/gas valve.

10
REMKO GPS series
Control panel
The hot air heaters from the GPS series are fitted as
standard with a control panel on the front of the unit.
All unit information or fault indications are displayed
on this control panel.
General notes
Toggle switch
ZSummer / dWinter
Reset key
GREEN LED
RED LED
Safety thermostat
High or low flame
The units are serially equipped with a room
temperature probe NTC1 on the rear side of the unit
so that the intake temperature of the fans is
monitored. The operation of the two stages takes
place depending on the temperature value measured
by the probe compared to the value set inside
the thermostat housing. The thermostat can be
set to the desired temperature value via a screw.
This value should be set a few degrees above
the desired room temperature. If the temperature rises
above the set value then the burner is set at a lower
flame, which reduces the heat output. In this way
the air blown into the room is heated less heavily.
However, the thermostat for controlling the high
or low flame is by no means a replacement for a room
thermostat, which must be installed in all instances.
The optimisation of the 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 gas wall
heater is normally installed at a distance of 2.5 - 4 m
from the floor.
The GPS unit series is equipped with a safety
thermostat with automatic reset function and positive
safety device as standard. This means that the safety
equipment also triggers with a breakage.
If the thermostat is tripped, the burner is stopped
via the flame monitoring unit and a subsequent
fault shut-down of the flame monitoring unit is
triggered. The thermostat probe is located behind
the top outflow fins, in the centre of the housing.
The fault shut-down is displayed on the control panel
by the red indicator light.
Because this is a safety-relevant error, the fault shut-
down is permanent and requires a manual reset.
The illumination of the green LED means that
the unit is connected to the mains.
The illumination of the red LED indicates
a malfunction of the unit.
Using the malfunction diagnostics, the cause
of the malfunction can be identified by the different
types of flashing signals of the red LED.
Summer/winter toggle switch
Also, a manually-operated toggle switch d/ 0 / Z
is installed on the front of the unit, which enables
switching the unit from winter operation dto summer
mode Z(continuous ventilation).
In the central position [0] all unit functions are
switched off.
Reset key
A manually-actuated reset key is installed on the front
of the unit, which enables the unlocking of the unit
after the malfunctions F1, F2, F5, F6 or F8.
CAUTION
Before resetting safety equipment, the cause
of the trigger must be identified and rectified.

11
The desired comfortable temperature should be
reached and maintained with this. However, it is
necessary to ensure that the units are operated with
the lowest necessary temperature value, in order
to maintain these conditions. The thermostat is set
to 20°C in the factory. This value enables a mid-
level installation range between 3 and 5 metres with
room temperatures between 17 and 19°C (see graph
below).
Malfunction diagnostics
With a malfunction, the red alarm light illuminates
constantly on the control panel.
To cancel the malfunction, it is necessary to press
the reset key for longer than 1 second.
If the malfunction is still present after the reset,
please do not attempt a reset more than three times
and contact customer service to arrange a repair.
To activate diagnostics, it is necessary to press
the reset key for longer than 5 seconds. The red
light will start to flash. The error number can now be
determined on the basis of the number of flashing
signals. The flash sequence is repeated and displayed
with a pause of 2 seconds between each repetition.
F1 - LED flashes once quickly
F2 - LED flashes twice quickly
F5 - LED flashes five times quickly
F6 - LED flashes six times quickly
F8 - LED flashes eight times quickly
Types of malfunction
The malfunctions (lock-outs) displayed and saved
by the control board have the following causes:
F1 - Malfunction of the flame monitoring unit
because of unsuccessful ignition of the
burner; the control board arranges for a series
of automatic deactivation attempts prior
to reporting the malfunction.
F2 - Tripping of the safety thermostat.
If the temperature detected by the thermostat
is too high, it disconnects and disables
the operation of the unit.
F5 - Burner fan defective;
Combustion air fan is defective or the signal to
the control board lies beyond the tolerance range
of the desired speed.
F6 - Combustion air fan is defective or the signal
to the control board lies beyond the tolerance
range of the desired speed.
F8 - The control board has identified an undesired
response.
The malfunctions F1 and F2 are caused by safety
devices and therefore are permanent:
The malfunction persists when switching off and
restarting the mains voltage and can only be unlocked
manually.
CAUTION
Before resetting safety equipment, the cause
of the trigger must be identified and rectified.
NOTE
Safety devices may not be bypassed or disabled
during operation of the unit!
NOTE
Set the temperature on the internal thermostat
at least 2 K above the desired room temperature.
Fin alignment
Before switching the unit on, open the fins at least
45°, in order to avoid overheating the combustion
chamber.

12
REMKO GPS series
As a prerequisite for any guarantee claims to
be considered, it is essential that the ordering
party or their representative complete and return
the "certificate of guarantee" to REMKO GmbH &
Co. KG at the time when the units are purchased and
commissioned.
The units are tested several times to verify their
correct function. However, if malfunctions should
arise that cannot be remedied by the operator with
the assistance of the troubleshooting section, please
contact your specialist dealer or contractual partner.
The units are designed exclusively for heating and
ventilation purposes in industrial or commercial
use (no living space heating) on the basis of their
structural design and equipment.
The unit design allows for the use of the unit
accessories approved by the manufacturer.
The units must only be operated by appropriately
instructed personnel.
With non-observance of the manufacturer's
specifications, the respective local legal requirements
or after arbitrary alterations to the units,
the manufacturer shall not be liable for resulting
damages.
Any improper use of the units is prohibited.
The units must be installed by a qualified technician,
who is responsible for the observance of the existing
regulations, rules and guidelines.
Customer service and
Guarantee
Disposing of packaging
When disposing of packaging material, please
consider our environment.
Our units are carefully packed and delivered in stable
transport packaging and, if applicable, on a wooden
pallet.
The packaging materials are environmentally-friendly
and can be recycled.
By recycling packaging materials, you make a
valuable contribution to the reduction of waste and
conservation of raw materials.
Therefore, only dispose of packaging material at
appropriate collection points.
Disposal of the old unit
The manufacturing process for the units is subject
to continuous quality control.
Only high-grade materials are processed, the majority
of which are recyclable.
You also contribute to environmental protection
by ensuring that your old equipment is only disposed
of in an environmentally-friendly manner.
Therefore, only bring the old unit to an authorised
recycling business or to an appropriate collection
point .
Intended use Environmental protection
and recycling
NOTE
Operation other than the types listed
in this operating manual is prohibited.
With non-observance, any liability and claim
to guarantee expire.
CAUTION
Copyright
The redistribution, even in part, or the use of
this documentation for purposes other than
intended is strictly prohibited without the written
authorisation of REMKO GmbH & Co. KG .
Transport and handling
The units from the GPS range are supplied fastened
to a wooden pallet and covered with suitable
stable cardboard packaging. Suitable transport
vehicles, capable of bearing the load, must be used
to transport the units. All transport work must be
performed by experienced personnel, who are familiar
with the applicable health and safety regulations.
The unit can be unpacked once it has been
transported to the installation site.

13
Ventilation openings
The rooms where gas-powered units are operated
must have one or more permanent openings
(windows or doors).
These openings must be arranged in the following
places:
- directly below the ceiling with gases with a density
less than 0.8
- directly above the floor with gases with a density
greater than or equal to 0.8.
The openings must be arranged on exterior walls
in open air. For the size of the cross-section,
the installed heat output is authoritative.
Installation instructions
The minimum height and clearance of the fan-assisted
heater from the walls and floor can be gathered from
the drawing below.
The minimum clearances are the necessary distances
for maintenance. All measurements are given in mm.
The height [2500 mm] corresponds to the minimum
height indicated for "Hanging units" by the
guidelines.
Two different types of brackets are available
for the installation as accessories:
Fixed and pivoting.
The following instructions for installation and set-up
of the units are intended exclusively for authorised
technicians.
All safety notes must be observed without fail.
General information
Normally the units can be installed directly
in the room to be heated.
With the installation of the units, the local and
country-specific regulations (LBO) and combustion
plant order (FeuVO) of the respective state must
be observed.
The first enactment of the (German) Federal
Emission Control Act (1st BlmSchG) and the
statutory provisions of the ordinance governing
small combustion plants (1st BlmSchV) must also
be applied.
The installation of fan-assisted heaters operated
with gas burners is prohibited in the following spaces:
■ In public function rooms or in rooms with
a concentration of people greater than 0.4 per
square metre
■ In rooms where gas or dust can accumulate
through the processing that takes place there or
through the materials stored there, which could
lead to fire or explosion
Installation
So that no dangerously high temperatures are
reached, the distance between the exterior surface
of the unit and flue gas pipe and any accumulated
flammable material must be no less than 1.5 m,
with a ground clearance of 2.5 m or greater.
Units with gas burners for gas with a density greater
than 0.8 (liquid gas, propane, butane) may only
be installed in rooms where the floor does not lie
below ground level. Rooms must have one or more
permanent openings (windows or doors).
200 1000
4002500
NOTE
Ensure sufficient distance between fan and wall
(unhindered air flow).

14
REMKO GPS series
Permanent wall installation
Align the wall brackets in a suitable place on the wall
(spirit level) and securely fasten.
Mark the boreholes to be made with a pencil.
- Securely attach the wall brackets with suitable
anchors and screws - M10 or greater.
- Install the two bracket pairs with the supplied
material as shown in the figure
- When installing the brackets, lock the nuts with
a locking ring between the bracket and nut.
Brackets for wall installation (standard design) EDP
no.: 228780 GPS 15 - 75
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
s s s
NOTE
Make sure that the type of anchor and size
of the screws are appropriate for the type of
masonry, in order to bear the weight of the unit.
- Position the unit on the brackets so that the holes
of the unit line up with those of the brackets,
whereby the corners of the brackets must be flush
with the front edge of the unit.
- Fasten the units with the M8 screws provided;
in the process, insert a locking ring between
the screw and bracket.
225225
560
90
Abstand B
ø12
Distance B
Distance between the wall brackets
Model Distance B
GPS 15 719 mm
GPS 25 719 mm
GPS 35 910 mm
GPS 55 910 mm
GPS 75 1241 mm
CAUTION
The units may only be mounted on stable walls,
ceilings or structures made of non-flammable
construction materials with sufficient bearing
capacity.
The wall console must be affixed securely using
screws and wall plugs in accordance with the
customer’s type of wall and the unit weight.
The unit should be affixed “decoupled”.

15
115
NOTE
The brackets must be connected to the unit and
the wall in a de-energised state.
CAUTION
The units may only be mounted on stable walls,
ceilings or structures made of non-flammable
construction materials with sufficient bearing
capacity.
The wall console must be affixed securely using
screws and wall plugs in accordance with the
customer’s type of wall and the unit weight.
Pivoting wall installation
The instructions for installation of the pivoting
brackets are included with the packaging.
The use of pivoting brackets is appropriate for the
following cases:
a) Installation of the unit in a corner
b) Installation of the unit at a right angle to the wall it
is mounted on
c) Installation of the unit on a column
The unit should be
affixed “decoupled”.
The spider must be
mounted with the flush
socket side below the
unit’s base.
A counterplate must be
used if necessary.
The bracket must be
screwed to the wall so
that it is free of tension.
After the unit has been
aligned finally, use the
enclosed threaded pin
to secure the spider.
220
8080
Ø12 The fastening holes are
the same for all bracket
sizes.
The order numbers for the pivoting wall installation
are:
EDP no.: 228781 for GPS 15 / 25
EDP no.: 228782 for GPS 35 / 55
EDP no.: 228783 for GPS 75

16
REMKO GPS series
Hanging from the ceiling
The accessory assembly kit ceiling suspension,
with 4 universal suspension brackets, is available
for installation as a suspended unit.
When fastening to the ceiling with chains or ropes
provided by the customer, use appropriate fastening
materials that are suitable for the weight of the unit.
Vertical air flow
If installation with a vertical air flow is intended,
this should be specified during the order phase.
An additional thermostat is installed on the fan for this.
Detailed view A:
Horizontal air flow
A
Detailed view B:
Vertical air flow
B
NOTE:
Small guide holes are provided for correct
arrangement of the suspension brackets. These
must be aligned at the top edge of the unit. Refer
to corresponding figure here. With a vertical unit
installation (only possible with the GPS series),
a fan thermostat must be additionally installed.
CAUTION
Installation as a suspended unit with verti-
cal air flow can lead to damage and the failure
of the unit without the fan thermostat.

17
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
Flue gas connection
Individually, the units are classified for the following
versions:
B23/C13/C33/C43/C53/C63
The installation of the flue gas and supply air duct can
take place in different ways.
e.g. Gas fireplace type B:
The combustion cycle is not sealed compared
to the environment in which it has been installed.
The combustion air is taken directly from the
installation space.
This version may only be installed in rooms that have
at least one door or window that can be opened
to the outside and have a volume of at least 4 m³
per kW total nominal heat output of the unit; or a
combustion air opening of at least 150 cm² leading
outside or two openings that have a clear cross-
section of at least 75 cm² each.
e.g. Gas fireplace type C:
The combustion cycle is sealed compared
to the environment in which it is installed.
The combustion air is fed from outside.
The units may only be operated with appropriate flue
gas pipes.
The factory components available as serial accessories
correspond to all requirements.
CAUTION
The use of plastic flue gas pipe is not permitted.
The units work with a closed combustion cycle.
The fan is located in front of the heat exchanger.
The flue gas evacuation and/or combustion air
supply must be planned and executed in observance
of the respective local guidelines.
In addition, installation on outside walls must be
coordinated with the responsible district master
sweep.
The classification of the different installation versions
takes place pursuant to the European Standard EN
1020 and/or DVGW-TRGI Directive 2008 and is a
component of the EC authorisation in the factory-
supplied design.
Installing the end pieces
The warm air heaters from the GPS range are
equipped in the rear and top section of the burner
box with openings for the extraction and flue gas
pipe. Depending on which type of installation has
been selected, it is possible to fit or relocate the end
pieces at the rear or top.
The end pieces are mounted on the rear side
of the unit in the factory. If top openings should be
required then the connections must be detached from
the rear side and the cover and seal unscrewed from
the top openings. Now screw the 90° bend inside
the burner box, in the respective direction. Insert
the end pieces in the desired position and screw
the cover and seals into the seats that are not used.
Make sure that the seal is guaranteed on the burner
box and in particular on the flue gas pipe.
Fitting the end piece seals
The scope of supply includes two seals to seal
the end pieces with the flue gas pipe and fresh air line.
These are fitted on the end pieces of the GPS units for
correct sealing.
CAUTION
If the end piece seals are not used then there is a
high risk that flue gases will be fed into the room
to be heated.
NOTE
The installer of the exhaust system is obliged to
complete the system identification (name plate)
enclosed with the exhaust system in accordance
with applicable standards and visibly attach it to the
exhaust system.

18
REMKO GPS series
Condensate water
With long pipes condensate can form, because
the temperature of the flue gas drops below
the condensation temperature. This must be
prevented through the following measures:
■ Through heat insulation of the flue gas pipes
■ Through the use of condensate water traps, where
the collected condensate is drained from the flue
gas pipe.
Note:
Appropriate condensate traps are available as
accessories.
They can be used with both horizontal and vertical
pipework.
Guide to selection
If the flue gas end piece is not connected directly
to the unit, but rather longer flue gas sections must
be overcome, ensure - according to the tot. length
and geometry of the flue gas routing - that the end
and extension pieces, as well as the elbows, exhibit
the correct diameter.
After fastening the flue gas routing, the pressure loss
for the respective unit must be determined.
The pressure loss is different with each unit, because
the flue gas flow rate depends on the output.
Add up the determined pressure losses
of the individual flue gas components and make sure
that the sum total does not exceed the value available
for the unit type to be used.
Note:
With the internal installation of coaxial tubes,
a maximum tube length of 3 m is permitted.
The end piece of the flue gas pipe must be installed
in accordance with the relevant national guidelines.
If there is a combustion air supply duct, the pressure
losses must be added to those of the flue gas pipe.
If the sum total of the pressure losses lies above
the available unit pressure, flue gas and fresh air pipes
with a larger diameter must be used. The calculation
must be performed once more for this.
The maximum possible duct lengths between the unit
and end piece are shown in the table.
When using flue gas elbows, it is necessary to take
the respective pressure losses into consideration.
Examples of pressure losses:
A 90° elbow with Ø 80
equates to 1.8 m straight pipe length
A 45° elbow with Ø 80
equates to 0.8 m straight pipe length
A 90° elbow with Ø 100
equates to 2.3 m straight pipe length
A 45° elbow with Ø 100
equates to 1.0 m straight pipe length
Examples for the design of flue gas pipe and
combustion air ductwork are represented on
the following pages.
Individually, the units are classified for
the installation versions
B23/C13/C33/C43/C53/C63
NOTE
Exceeding the permissible pressure losses
in the pipework reduces the heat output and safe
operation of the unit.
CAUTION
Installation work may only be carried out by
authorised qualified technicians.

19
Type B23 horizontal
L1 maximum duct length without end pieces
Pipe ø 80
Model Metres
GPS 15 30
GPS 25 30
GPS 35 30
GPS 55 25
GPS 75 10
Installation examples
Gas fireplace type B23
Room-air-dependent combustion system.
The combustion cycle is not sealed compared
to the environment in which it has been installed.
The combustion air is taken directly from the
installation space.
The guidance of the flue gas can take place in two
variants:
a) with the aid of horizontal ductwork (outside wall
installation) straight through the outside wall
or
b) with a vertical duct through the roof, if the ceiling
is also the roof.
With these installation variants, sufficient ventilation
of the installation space must be ensured in order
to guarantee the correct supply of combustion air.
This takes place through openings in the walls of
the room.
The dimensions and characteristics determined
in thestandards must be adhered to.
In particular, DVGW-TRGI 2008 Sec. 5.2.2 and TRF
Sec. 7.2.2. should also be observed.
The combustion air supply must be made from
the outside as a basic rule:
■ With mechanical suction plants in the installation
space
■ If over or underpressure can occur in the installation
space
■ If the unit is installed in environments with large
amounts of dust
■ In operations working with motor vehicles
Protection grid [S] for combustion air intake
GPS 15 - 75; EDP no.: 228960
Type B23 horizontal through the outside wall.
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
CAUTION
In this version a protection grid should be
affixed on the combustion air supply duct
so that the penetration of solid objects with
a diameter greater than 12 mm is prevented.
Mounting height
S
2.5 - 3.5 m
L1
750 mm

20
REMKO GPS series
Type B23 vertical
L1 maximum duct length without end pieces
Pipe ø 80
Model Metres
GPS 15 30
GPS 25 30
GPS 35 30
GPS 55 25
GPS 75 10
L1
Mounting height
2.5 - 3.5 m
SK
Type B23 vertical through the ceiling.
NOTE
Condensate drainage connection [K] = M 20 external thread
Type C13 horizontal / coaxial
L1 + L2 maximum duct length without end pieces
Pipe ø 80 Pipe ø 100
Model Metres
GPS 15 30 + 30 -
GPS 25 30 + 30 -
GPS 35 20 + 20 -
GPS 55 8 + 8 20 + 20
GPS 75 2 + 2 10 + 10
Gas fireplace type C
Room-air-independent combustion system.
The combustion cycle is sealed compared
to the environment in which it is installed.
The combustion air is fed from outside.
The ductwork runs horizontally through the outside
wall or vertically through the roof.
Flue gas and fresh air adapter piece Ø80 to Ø100
GPS 55-75; EDP no.: 228916
Type C13
Room-air-independent combustion system.
Exhaust/ and combustion air are led through an LAS
end piece through the outside wall.
NOTE
According to Section 4-1-2 of the FeuVO (German
Fire Ordinance), only fireplaces that are self-con-
tained from indoor air may be operated in garages.
L1
L2
2,5 - 3,5 m
750 mm
Installation height