ermaf TR 75 User manual

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D GB NL PL RUS
© 2014 Elster GmbH · Edition 04.14
Safety
Please read and keep in a safe place
Please read through these instructions
carefully before installing or operating. Following the
installation, pass the instructions on to the opera-
tor. This unit must be installed and commissioned
in accordance with the regulations and standards
in force. These instructions can also be found at
www.docuthek.com.
Explanation of symbols
• ,  ,  ,  ... = Action
▷= Instruction
Liability
We will not be held liable for damage resulting from
non-observance of the instructions and non-com-
pliant use.
Safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified
gas technicians. Electrical interventions may only be
carried out by qualified electricians.
Persons under the age of 18 as well as persons with
reduced physical, sensory or mental capabilities or
lack of experience and knowledge are not allowed
to use, clean or service this device. Staying near the
device or its use is prohibited, even if said persons are
supervised or have been instructed on the safe use of
the devices and are aware of the resulting dangers.
Conversion, spare parts
All technical changes are prohibited. Only use OEM
spare parts.
Transport
On receipt of the product, check that the delivery is
complete (see Part designations). Report any trans-
port damage immediately.
Storage
Store the product in a dry place. Ambient tempera-
ture: see Technical data.
Contents
Operating instructions
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Translation from the German
Heater Thermorizer TR 75
Contents ..............................
Checking the usage .....................
Installation ............................
Tightness test ..........................4
Wiring ................................4
Connection diagram......................5
Connecting the room thermostat ............5
Remote reset ...........................6
Multi-functional outputs ...................6
Selecting the burner capacity............... 7
Burner Chip Card (BCC) .................. 7
Setting the switch-on delay ................ 7
Commissioning.........................7
Operation..............................8
Description.............................8
Switching on ...........................8
Switching off ...........................8
Setting mode ...........................9
Checking the direction of rotation
of the main fan ..........................9
Adjusting the heater.....................9
Cleaning .............................
Assistance in the event of malfunction ....
Maintenance ..........................9
Checking the safety functions and burner
operation.............................9
Accessories ..........................0
Spare parts ...........................5
Technical data ........................7
Declaration of conformity ...............7
Goods return form . . . . . . . . . . . . . . . . . . . . . 8
Contact ..............................8
Contents

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Checking the usage
TR 75
Heater with indirect combustion for agricultural sta-
bles and horticultural greenhouses. Depending on
the type and setting, the heater can be operated with
natural gas or LPG (propane/butane).
This function is only guaranteed when used within the
specified limits– see page27 (Technical data). Any
other use is considered as non-compliant.
Type code
Code Description
TR Heater
75 Capacity 75kW, jet length > 50 m
Part designations
MODERESET ON/OFF
2 8
3
6
4
1
9
5
7
10
8
Thermorizer stainless steel housing
Housing cover/Burner control unit
Service flap
4Connection for gas combination control
5Chimney with condensate vessel (not included
in the delivery)
6Main fan
7Filter
8Status indicator (operation/faults)
9Wall bracket (optional)
0 Air diffuser (optional)
Type label
Air circulation, electrical connection rating, rated heat
input, gas type, category, supply pressure, burner
pressure, enclosure: see type label.
• Before installation, check whether the device is
suitable for the regional gas type and the speci-
fied limits, see type code and page27 (Techni-
cal data).
Installation
DANGER
Danger of death! Gases are generated during the
storage of slurry which remain partly dissolved in
the liquid. If the slurry is strongly agitated during
mixing and purging, poisonous, explosive gases
such as hydrogen sulphide and methane are re-
leased. If an ignition source is present, the released
gas can explode.
To avoid damage during operation, please observe
the following:
– Switch off the heater before mixing and purging
the slurry.
– Close the slide valves when storing slurry out-
side.
– The fan for the air supply must not be part of a
closed pipe system.
– Respect the safety distance of the heater to
inflammable materials, see “Installation position”.
– Consult your fire insurance provider and/or local
fire protection engineer to assess the foresee-
able, general risk of fire.
– For cleaning, care and maintenance, note the
applicable national regulations and directives.
– No condensation permitted. Comply with am-
bient temperature, see page27 (Technical
data).
Installation position
▷Installation position: horizontal.
▷
Note the safety distance to walls and inflam-
mable materials.
> 0,2 m
> 0,5 m
> 0,5 m
> 1 m> 3m
▷Ensure sufficient free space around the device.
There must be no obstructions in front of the inlet
and outlet side of the heater.
▷ The distance between the heaters should be
greater than 30m.
▷To avoid overheating, do not cover the main fan.

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Chimney
CAUTION
The TR is only deemed CE tested and approved
when used with the coaxial chimney described in
“Accessories”.
▷
Do not exceed the maximum length (5m) of
the chimney.
▷ The design of the chimney depends on the prem-
ises and the roof construction.
▷ Various chimney elements for individual appli-
cations can be supplied, see page 20 (Ac-
cessories).
▷ The wall bracket cannot be installed in the correct
position until the chimney has been selected.
Wall bracket
▷The wall bracket is the support and wall mount-
ing for the heater.
▷
The design of the mounting depends on
the premises and the wall construction, see
page20 (Accessories).
▷ For its alignment, we recommend that the heater
is positioned at the correct height using a forklift
truck.
▷The heater must remain on the forklift truck until
the wall bracket has been mounted to make it
easy to install.
CAUTION
To avoid damage to the heater TR, please observe
the following:
– If the slide is used for the wall bracket, position
the TR so that when the slide is extended it
does not tip over.
<
–
0,2 m
≥
1,6 m
Siphon connection
DANGER
Risk of poisoning!
– If the TR is operated without a siphon or with
an empty siphon, toxic flue gases may escape.
▷ A siphon must be connected before commission-
ing. This prevents the escape of toxic flue gases
and will also collect any condensate contained
in the flue gas.
▷ The siphon is not included in the delivery and
must be ordered separately for the nominal size
of DN40.
▷ Fill the siphon with water before commissioning.
▷If large volumes of condensate are discharged,
we recommend that an additional drain pipe is
connected to the siphon.
▷ If the heater has not been used for a lengthy
period, the siphon must be checked, cleaned
and filled with water before commissioning.
• Unscrew the siphon, remove it and fill it until
water flows out of the side drain.
• Secure the siphon again and ensure that the seal
is correctly positioned.
Connecting the gas supply
▷
The TR is set to the correct gas type as specified
in the purchase order.
▷ If you wish to use a different gas type, see
page3 (Changing the gas type).
 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
 Remove the sealing plug from the gas inlet on the
combination control on the underside of theTR.
4 Connect the gas pipe with an R¾" threaded
connection or gas hose with an R¾" connector,
see page20 (Accessories).
▷Use approved sealing material only.
5
MODERESETON/OFF
6
Changing the gas type
▷If you wish to use a gas type other than the one
specified in the purchase order, you will have to
order an appropriate burner chip card.
▷ The TR must be set to the new gas type, see
page9 (Adjusting the heater).
▷Mark the new gas type on the type label using
waterproof ink.

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Tightness test
▷The heater may only be disconnected from the
electrical power supply once the device has been
switched off.
 Disconnect the system from the electrical power
supply.
▷The valves are closed when de-energized.
 Open pressure test pointpuon the gas combina-
tion control.
 Connect a pressure gauge to pu.
+
–
D
+–
N
k
pu
–
+
CO2
–
+
CO2
4 Switch on the power supply.
5 Release the gas supply.
6 Do not exceed the maximum inlet pressurepu.
7 Close the manual valve.
8 Check the pressure gauge onpu.
▷The pressure must not drop.
MODERESETON/OFF
N2= max. 70 mbar
MODERESETON/OFF
9 10
 Having successfully completed the tightness test,
remove the pressure gauge and close pressure
test pointpu.
Wiring
CAUTION
Danger of electric shocks!
– Before working on possible live components,
ensure the unit is disconnected from the power
supply.
– The TR 75 must have an external 10 A fuse.
– It must be possible to isolate the system from the
power supply. The TR must be equipped with
a mains cable or a plug featuring a contact gap
according to the specifications for Overvoltage
Category III for full isolation at each pin. If this is
not the case, the permanently wired electrical
installation must include an isolating switch of
this type pursuant to the local installation regula-
tions.
▷The heater may only be disconnected from the
electrical power supply once the device has been
switched off.
 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
 Open the housing cover of the burner control
unit.
▷External electrical interference must be avoided.
▷Check the rotating field at L1, L2 and L3.
▷ The terminal block is marked with L1, L2, L3,
N and PE.
4 Connect the mains cable.
L1, L2, L3 = grey
N = blue
PE = green/yellow
▷ The selection of cables and mains plug must
comply with local/national regulations.
–
+ –
+
L3
CO2
pd
L2L1N
400 V~,
-15/+10 %,
50 Hz
2
1
Terminal block for the voltage supply
Relay for actuating the main fan
5 Open the cover of the burner control unit.

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Connection diagram
▷ The burner control unit is fitted with coded plugs
to prevent them being mixed up.
LN LN LLT LV +T –+VmA V12
LLiN 12 +
0 V
D – 49018 Osnabrück, Germany
ACU
Connecting the room thermostat
CAUTION
To avoid damage to the heater TR, please observe
the following:
– Provide post-cooling for the TR. The TR requires
a continuous supply of 400VAC (3NAC), 50Hz.
– In case of a power failure, an emergency power
supply unit should automatically take over the
power supply. Emergency power supply units
with a cardan shaft drive for tractor attachment
are also suitable.
▷
Use a room thermostat with a hysteresis of ±1°C.
It switches on if the room temperature is 1°C
less than the set temperature and switches off
again once the room temperature is 1°C more
than the set temperature.
▷ The floating plugs X4 (230V) or X8 (24V) are
used to connect the room thermostat.
▷ If the room thermostat is connected to the
mains supply of other plugs (plug X1 orX3) the
heaterTR will be damaged.
Connecting a single heater to a room
thermostat
6 Connect a room thermostat for 230VAC.
▷Method 1: power supply via the heater.
230 V AC
230 V AC
+V – +T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
▷Method 2: power supply via the environmental
control computer.
230 V AC
230 V AC
+V – +T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
6 Connect a room thermostat for 24VDC/AC to
plugX8.
▷The 24V power supply must always be from an
external source.
230 V AC
230 V AC
+V – +T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
eBus
Burner chip
card (BCC)
Potentiom-
eter
(switch-on
delay)
MFA 2
MFA 1
Remote
reset
0 – 10 V
0 – 20 mA
10 – 24 V
Thermostat
Controlled
air flow
230 V
Thermostat
Controlled
air flow
Mains con-
nection
Mains filter
Mains filter
Mains con-
nection

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Connecting multiple heaters to a room
thermostat or an environmental control
computer
6 Connect a room thermostat for 230VAC.
▷Method 1: power supply via the heater.
2. TR 75
X2
2. TR 75
– +T
X8
+V
L N
X1 Gas
NLT LV
X4
2. TR 75
X2
L N
X1 Gas
NLT LV
X4
2. TR 75
X2
L N
X1 Gas
NLT LV
X4
1. TR 75
1. TR 75
1. TR 75
1. TR 75
230 V AC
230 V AC
+V – +T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
▷ “N” may only be connected to plug X4 of one
of the heaters.
2. TR 75
X2
2. TR 75
– +T
X8
+V
L N
X1 Gas
NLT LV
X4
2. TR 75
X2
L N
X1 Gas
NLT LV
X4
2. TR 75
X2
L N
X1 Gas
NLT LV
X4
1. TR 75
1. TR 75
1. TR 75
1. TR 75
230 V AC
230 V AC
+V – +T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
▷Method 2: power supply via the environmental
control computer.
2. TR 75
X2
2. TR 75
– +T
X8
+V
L N
X1 Gas
NLT LV
X4
2. TR 75
X2
L N
X1 Gas
NLT LV
X4
2. TR 75
X2
L N
X1 Gas
NLT LV
X4
1. TR 75
1. TR 75
1. TR 75
1. TR 75
230 V AC
230 V AC
+V – +T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
6 Connect a room thermostat for 24VDC/AC to
plugX8.
▷ The 24 V power supply must be from an external
source.
2. TR 75
X2
2. TR 75
– +T
X8
+V
L N
X1 Gas
NLT LV
X4
2. TR 75
X2
L N
X1 Gas
NLT LV
X4
2. TR 75
X2
L N
X1 Gas
NLT LV
X4
1. TR 75
1. TR 75
1. TR 75
1. TR 75
230 V AC
230 V AC
+V – +T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
X2
L N
X1 Gas
NLT LV
X4
Remote reset
L
N
Reset
MFA
1M
FA
2
max. 5 A
max. 264 V
max. 2 A
max. 264 V
NLT LV
X4
12
X6X5
Li
12
X7
▷An external remote reset may be connected to
plugX5.
Multi-functional outputs
Reset
MFA 1MFA 2
max. 5 A
max. 264 V
max. 2 A
max. 264 V
AC/DC
10-24 V
LV +V –
+
X8
12
X6X5
Li 12
X7
0 V
▷Floating multi-functional outputs can be param-
eterized using plugs X6 andX7. There are two
methods of completing this parameterization:
The PC software for burner control units
BCSoft can be used via the optical interface on
the burner control unit, see page20 (Acces-
sories).
The “Setting mode” menu can be opened us-
ing the MODE selection button (heater OFF)
and used for parameterizing the outputs, see
page9 (Setting mode).
▷MFA , external fan (max. 5 A)
For improved air circulation in the room, an addi-
tional fan can be connected. The external fan can
be actuated with an adjustable delay (BCSoft) for
switching it on and off. The exact time relates to
the operation of the main fan.
▷Possible parameterization options:
– Inactive: the external fan is not actuated.
– Main fan active: the external fan is actuated at
the same time as the main fan.
– Main fan inactive: the external fan is actuated
when the main fan of the TR switches off.
– Modulation enable: the external fan is not actu-
ated until the TR starts modulating operation.
▷MFA , status signal (max. 2A)
Possible parameterization options:
– Fault NO (default setting):
For example, the input for a horn can be set to
NO.
– Fault NC:
The input on an environmental control computer
can be set to NC (e.g. to indicate a cable dis-
continuity).
– Operation
– Standby

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Selecting the burner capacity
FA 2
2 A
64 V
AC/DC
10-24 V 0-20 mA
+ –
– +
0-10 VBus
+V –+T
X8
mA V
X9
2+
X10
0 V
▷ Plug X9 is not wired at the factory. In other words,
the burner heats at its full capacity.
▷ A capacity range from 60 to 100% can be se-
lected using a voltage or current signal. A sig-
nal sensor is connected to terminalX9 for this
purpose:
20 mA/0 V = maximum capacity,
0 mA/10 V = minimum capacity.
Burner Chip Card (BCC)
▷
All the data relevant to the device are saved
on the BCC and the internal device memory
(EEProm). In addition, the parameters are saved
on the BCC.
CAUTION
Danger of electric shocks!
– Before working on possible live components,
ensure the unit is disconnected from the power
supply.
– If the BCC is removed from the burner control
unit, the heaterTR will be non-functional.
▷In the event of faults which cannot be rectified
by authorized trained personnel, contact the
supplier.
▷ The BCC can be removed from the burner control
unit and submitted for diagnostic purposes by
agreement with the supplier.
BCC
+
Delay
▷If no other fault is active, the TR can be readied
for use again by inserting a new BCC. The BCC
must be compatible with the TR75 and the gas
type used.
Setting the switch-on delay
▷ If multiple heaters switch on at the same time,
there can be a gas and/or power shortage on
individual devices. To avoid this happening, ad-
just the switch-on delay using the potentiometer
on the burner control unit.
▷The potentiometer is set to 0s at the factory.
– +
▷If necessary, a switch-on delay of 5 to 10s can
be set between the devices.
7 After completing the wiring, close the cover
and the housing cover on the burner control
unit again.
8 Switch on the power supply.
▷ A circulating dash will be displayed when the
voltage supply is switched on to indicate that
the switch-on delay is running.
9 Release the gas supply.
0 Commission the heater.
Commissioning
CAUTION
To avoid damage to the heater TR, please observe
the following:
– The heater may only be commissioned once
it has been ensured that the heater, gas pipes,
mains voltage supply and room thermostat have
been installed by authorized trained personnel
according to the regulations.
– During the initial commissioning procedure, the
direction of rotation of the main fan must be
checked first, see page 9 (Checking the
direction of rotation of the main fan).
▷
The TR may only be commissioned using the
gas type specified on the type label.

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Operation
MODE RESET ON/OFF
MODE RESET ON/OFF
MODE RESET ON/OFF 1
3
5
7
4
2
6
ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
Operating modes
MODE selection button
4RESET
5Status indicator
6Optical interface
77-segment display
Description
ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
: to switch the heater on and off.
Operating modes:
Operating
mode Explanation
The burner control unit waits for the
signals for controlled air flow or heating
(automatic)
Continuous heating
(manual)
Control air flow in continuous opera-
tion
(manual)
Controlled air flow in continuous op-
eration and heating when a thermostat
signal is applied
(automatic)
MODE selection button (heater switched on):
By pressing the MODE selection button, it is pos-
sible to switch between the different operating
modes.
By pressing and holding the MODE selection
button in operating mode 2Heating, the cur-
rent capacity setting is displayed and can be
selected, see page10 (Display and selection
of the capacity setting).
MODE selection button (heater switched off):
By pressing and holding the MODE selection but-
ton, you can go to Setting mode, see page9
(Setting mode). The multi-functional outputs can
be assigned and the eBus address specified in
this mode.
4RESET: internal reset button
5Status indicator (light):
red: fault
yellow: standby/ready for operation
green: TR in operation
6Optical interface:
The PC software BCSoft can be used with the PC
opto-adapter via this interface, see page20
(Accessories).
77-segment display:
Fault code
Flame signal
Number of operating cycles
can be displayed. The decimal point indicates
that another figure follows.
Fault code
RESET button
Flame signal
Operating cycles
> 3 s RESET button
ON
Fault code: a fault is displayed immediately in the
form of an alternating letter and number indicat-
ing a warning or fault, see page12 (Assistance
in the event of malfunction).
Flame signal: pressing the RESET button displays
the flame signal, see page11 (Flame signal).
Operating cycles: pressing and holding the
RESET button for more than 3s displays the
number of operating cycles in changing displays,
see page19 (Maintenance).
▷ Press the RESET button to exit the display of
the flame signal or operating cycles.
Switching on
• Press ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
• The LED for the last selected operating mode will
flash. A different operating mode can be selected
within 2s. If you retain the selection, the flashing
light will change to permanently lit after 2s.
▷The heater will start once the thermostat signal
has been applied and the set switch-on delay
elapsed, see page7 (Setting the switch-on
delay).
▷ The burner starts after approx. 15s and operates
in the last selected operating mode.
Switching off
• Press ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
. The burner control unit display
and the burner will switch off immediately. Mains
voltage is still supplied however. The display in-
dicates “–”.

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▷ The main fan cools the heater down until it
reaches switch-off temperature.
CAUTION
– Do not disconnect the heater from the electrical
power supply until the cooling process has been
completed.
▷The display “–” will go out.
Setting mode
▷
You can go to Setting mode by pressing and
holding the MODE selection button when the
heater is switched off.
• Switch off the heater
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
▷ Mode E: eBus addresses can be saved.
Mode A/F: multi-functional outputs can be pa-
rameterized.
MFA 2 MFA 1
eBus address
Mode E
Mode A/F
MODE
button
MODE button
MODE
button
MODE
button
eBus adddress 1 ... eBus address 8
Save eBus address
0 Inactive
1 Fault (NC)
2 Fault (NO)
3 Operation
4 Standby
0Inactive
1 Main fan
active
2 Main fan
inactive
3 Modulation
enable
> 2 s MODE button
> 2 s MODE button > 2 s MODE button
> 2 s MODE button > 2 s MODE button > 2 s MODE button
> 2 s MODE button
OFF
▷ Press the RESET button to return to the previ-
ous menu.
▷ After a timeout of 20s, the display will auto-
matically return to the initial mode. The display
indicates “–”.
Checking the direction of rotation of the main
fan
 Switch on the power supply.
 Release the gas supply.
 Switch on the TR. Press ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
4 Select operating mode 3Controlled air flow.
▷The main fan will start.
▷ If it is turning in the correct direction, the fan
blades will turn clockwise.
▷ If the direction of rotation is incorrect, fault
codeA 8 will be displayed.
5 Switch off the TR. Press ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
6 Disconnect the heater from the electrical power
supply and rectify the fault, see page12 (As-
sistance in the event of malfunction).
Adjusting the heater
▷The heater is set to the gas type specified in the
purchase order.
▷ The fine adjustment on the gas combination
control is made on the basis of the CO2meas-
urements on the chimney.
▷The following are required for setting:
– 2.5mm Allen key,
– pressure gauge with display range 0to 50mbar,
– CO
2
flue gas analyzer. The flue gas analyzer must
be able to measure O2, CO and CO2. The sen-
sor should be suitable for temperatures of up to
300°C.
▷ The inlet pressurep
u
must comply with the tech-
nical data, see page27 (Technical data).
▷The inlet pressure pucan be measured using a
test point on the combination control.
+
–
D
+–
N
k
pu
–
+
CO2
–
+
CO2
 Open test point pu.
▷Do not use force!
 Connect a pressure gauge to pu.
 Disconnect the system from the electrical power
supply.
▷The heater may only be disconnected from the
electrical power supply once the device has been
switched off and post-cooling is complete.
4 Shut off the gas supply.
5 Remove the plastic cap from the CO2test point
on the chimney.

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6 Place the analyzer sensor in the test point.
7 Ensure that there is no air in the gas system.
8 Switch on the power supply.
9 Release the gas supply.
0 Measure the CO and CO
2
values simultaneously
and observe them.
 Switch on the burner control unit. Press ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
until an LED lights up.
▷ The burner control unit switches on in the last
operating mode selected.
 Select operating mode 2Heating.
Display and selection of the capacity setting
▷This display is only possible when the heater is
switched on.
▷
The current capacity setting can be displayed by
pressing and holding the MODE selection button
in operating mode 2Heating.
min.
max.
▷ If the top dash is lit, the heater is operating at
full capacity.
▷If the bottom dash is lit, the heater is operating
at minimum capacity.
▷ If the dash flashes, the heater has not yet
reached the capacity setting.
▷ When the capacity setting has been reached,
the dash will be lit for 15s. During this time, you
can switch between minimum and maximum
capacity setting by pressing and holding the
MODE selection button again.
▷ The display will go out after 15s. The display
can be reactivated by pressing and holding the
MODE selection button again.
▷ The display can be cancelled at any time by
pressing the RESET button.
Setting the high-fire rate
CAUTION
To avoid damage to the heater TR, please observe
the following:
– CO
2
adjustment may only be made at the re-
strictorD.
– The zero point setting is sealed and should not
be changed.
▷
The heater must be operated at maximum ca-
pacity.
▷Having initiated the ignition process, the burner
should start within 4s.
▷ If the burner does not ignite after several at-
tempts, the CO2value is set too low.
▷ Turn the restrictor half a turn in the +direction
using the Allen key.
+
–
D
+–
N
k
pu
–
+
CO2
–
+
CO2
▷ If the burner still does not ignite, turn the restrictor
further in the + direction.
▷If the burner starts successfully, you can watch
on the flue gas analyzer how the CO
2
value rises.
 Monitor the CO value.
▷During a normal start-up, the CO value will rise
briefly and then fall quickly again.
CAUTION
To avoid damage to the heater and flue gas analyzer,
please observe the following:
– The CO value may rise briefly to 500ppm im-
mediately after ignition.
If the CO value does not drop after a short time,
immediately reduce the CO2value by turning
the restrictorDclockwise.
Take the flue gas analyzer sensor out of the
test point immediately.
4 Allow the heater to operate for 10minutes.
▷During a normal start-up, it may take up to 15s
for the main fan to start the cooling process.
5 Set the CO
2
value on the combination control
to the correct value shown in the table.
CO2
[%-by-
vol.]
Inlet pressure
pu min.
[mbar]
pu max.
[mbar]
Natural gas L G25 9.6 18 70
Natural gas H G20 9.6 17 70
Butane G 30 LPG 13.4 25 70
Propane G 31 LPG 12.3 42.5 70
▷If the measured CO2value corresponds to the
details on the type label and in the table, the
heater has been set correctly. Otherwise, con-
tinue with the measurement and fine adjustment
until the heater is correctly set.
▷High-fire rate adjustment is now complete.
6 The low-fire rate setting must be checked.

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Checking the low-fire rate setting
CAUTION
To avoid damage to the heaterTR, please observe
the following:
– The low-fire rate may only be set by author-
ized trained personnel by agreement with the
manufacturer.
▷
The heater must be operated at minimum capac-
ity, see page10 (Display and selection of the
capacity setting).
▷ The combination control regulates the gas supply
according to the reduced air supply.
7 Contact the manufacturer if the measured CO2
value differs from the high-fire rate by 0.5%.
Further adjustments may only be made by
agreement with the manufacturer. Otherwise,
the warranty will be voided.
▷The CO2value is adjusted by changing the zero
point on the combination control atN.
+
–
D
+–
N
k
pu
–
+
CO2
–
+
CO2
8 Repeat this fine adjustment process on DandN
until the CO
2
value is correct at both capacity
settings.
▷ Adjustment is complete when the CO
2
value
corresponds to the specifications.
▷ The heater is currently set to low-fire rate. To
switch to high-fire rate, exit operating mode
2Heating and reselect it or hold the MODE
selection button, go to “Select capacity setting”
and select the maximum capacity setting.
9 Remove the pressure gauge.
0 Close test point putightly again.
▷The heater is ready for operation.
Flame signal
▷
The flame signal can be displayed when the
burner is operating.
 Pressing the RESET button displays the flame
signal.
▷ It appears in coded form as a number from 0 to9.
For a gas appliance the number must be
multiplied by a factor of 2. The result of
this multiplication is the flame current in µA.
Example: the number 3 corresponds to a flame
current of 6 – 8µA.
Display Flame
current [µA] Display Flame current [µA]
00 – 2 510 – 12
12 – 4 612 – 14
24 – 6 714 – 16
36 – 8 816 – 18
48 – 10 918...
 Check the flame signal.
▷The flame signal is displayed for 20s.
 Press the RESET button to exit the flame signal
display.
▷If the flame signal <2µA, the fault F (flame fault)
1or 2is displayed, see page12 (Assistance
in the event of malfunction).
Cleaning
CAUTION
To ensure that no damage occurs during operation
and cleaning, please observe the following instruc-
tions. Otherwise, injuries or damage to the device
may occur and/or the function of the device may
be impaired, and the manufacturer’s warranty will
be cancelled.
– Sharp-edged metal sheets. Always wear protec-
tive gloves.
– After cleaning, check that the components on
and in the heater are in good condition. The
device may only be restarted if all safety devices
have been installed and the safety functions
have been checked.
– Clean the heater once a year when used in
horticulture and at regular intervals as well as
after each fattening period when used in agricul-
ture, as described below. Inadequate or irregular
cleaning can cause the device to overheat and
can thus lead to fire damage or damage to the
device. For example, dirt particles can catch
fire and can be blown out of the device.
▷
The TR is made of high-quality stainless steel
and is resistant to external influences such as
dirt and moisture.
▷It is designed so that it can be cleaned carefully
both inside and outside with a high-pressure
cleaner.
▷ The housing cover and cable glands on the
burner control unit must be closed during the
cleaning process.
▷ The electrical components are protected from
moisture by additional water drip edges on the
housing cover. Nevertheless, direct water influ-
ence on the edges of the housing cover should
be avoided.
▷ A downward slope inside the device ensures
that dirty water drains out.
▷ Never direct the high-pressure cleaner at the
heater when it is set to water jet. Always use
the spray setting.
▷ The distance between the nozzle and the surface
to be cleaned must always be at least 50cm. Too
short a water jet from the high-pressure cleaner
can cause serious damage to the device.
 Switch off the burner control unit.
 Disconnect the system from the electrical power
supply.

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▷The heater may only be disconnected from the
electrical power supply once the device has been
switched off and post-cooling is complete.
 Shut off the gas supply.
4 Check the cover on the burner control unit and
the housing cover to ensure they are both tightly
closed
MODERESETON/OFF
▷The heat exchanger can be easily accessed via
the service flap.
5 Open the service flap and carefully clean the fins
on the heat exchanger with the high-pressure
cleaner (spray setting).
MODERESETON/OFF
> 50 cm
▷ The rubber seals between the electrodes and
electrode plugs may be displaced by the water
jet.
6 After cleaning, check that all the parts on and
in the heater are in the correct positions, for ex-
ample whether the rubber seals between the
electrodes and electrode plugs are fitted cor-
rectly.
7 Remove the air filter and check it for dirt.
8 Tap the air filter.
9 The air filter can be rinsed under running water
if it contains stubborn dirt particles.
0 Chemical cleaning agents, disinfectants and/or
pesticides contain corrosive substances which
can even corrode stainless steel. Always rinse
the devices with water after cleaning using such
agents to remove any residue of these agents
from the surface.
 After cleaning, select operating mode 3Con-
trolled air flow so that the interior of the device
can dry properly.
 After cleaning the heater, check it is functioning
faultlessly in normal operation, see page19
(Checking the safety functions and burner opera-
tion).
 When operating with LPG, check and clean the
breather orifice of the pressure reducer.
Assistance in the event of
malfunction
WARNING
To avoid harm to persons and animals or damage
to the heater, please observe the following:
– Electric shocks can be fatal! Before working
on possible live components, ensure the unit
is disconnected from the power supply.
– Fault-clearance must only be undertaken by
authorized trained personnel!
– Repairs to components, e.g. the burner control
unit or the combination control, may only be
carried out by the manufacturer. Otherwise, the
warranty will be voided. Unauthorized repairs or
incorrect electrical connections, e.g. the con-
nection of power to outputs, can cause gas
valves to open and the burner control unit to
become defective. In this case, fail-safe opera-
tion can no longer be guaranteed.
– (Remote) resets may only be conducted by au-
thorized personnel with continuous monitoring
of the devices concerned.
▷
In the event of an installation fault, the burner
control unit closes the gas valves and the status
indicator light will be red at the latest after a
restart has been unsuccessful.
▷ The 7-segment display will show a fault code
in the form of a letter with a decimal point and
a number alternately indicating a warning. To-
gether with the red status indicator light, this
then constitutes a fault.
▷Warnings and faults may be cleared only using
the remedies described below.
Internal wiring
▷
To rectify a fault, it is sometimes necessary to
check the internal wiring.
 Open the housing cover of the burner control
unit.
 Undo the two screws (M3) using a Phillips screw-
driver and remove the complete plastic cover
from the burner control unit.

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Internal connection diagram
LN LN LLT LV +T –+VmA V12
LLiN 12 +
0 V
D – 49018 Osnabrück, Germany
ACU
 Press the RESET button to reset. The unit then
reverts to the last operating mode selected.
▷Possible faults
Display Fault type
FFlame fault
AAir fault
CTemperature fault
EElectronics fault
UOther possible faults
4 If the burner control unit does not respond even
though all the possible faults have been rectified
as described below, contact your supplier.
? Fault
! Cause
• Remedy
? The 7-segment display has gone out despite
the voltage supply being OK?
! Fuse F2 is defective.
• Check the fuse contacts.
There is a spare fuse directly next to the fuse
holder.
Important! Fit the correct fuse for 4A.
LN LN LLT LV +T –+VmA V12 LLiN 12 +
0 V
D – 49018 Osnabrück, Germany
ACU
? Fault code F. and 1flash alternately?
On burner start-up, the burner control unit has
not detected a flame during the safety time. Sev-
eral automatic start-up attempts will be com-
pleted if a restart has been programmed.
! Inadequate inlet pressure available.
• Check the inlet pressure.
! Ignition is not working properly.
• Check the connection of the ignition cables for
damage or moisture. The spark plug must be
fitted correctly.
• Check the ignition spark acoustically during the
3-second ignition time from the burner fan side.
• Clean the ignition electrode.
• Check the ignition transformer and replace it if
necessary.
! Poor flame signal due to incorrect burner adjust-
ment.
• Readjust the CO
2
value, see page9 (Adjust-
ing the heater).
! Poor flame signal due to dirty or badly connected
ionization electrode.
• Check the ionization electrode and clean it with
fine abrasive paper if necessary.
Main fan
Burner fan
230 V
Not used
Not used
Ionization
WT Klixon
(temperature limiter)
Pressure switch for air
(vane not used)
Valves
Ignition
Status indicator
Burner fan
eSTB2
(temperature sensor)

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• Check the cable connection, cable and plug for
damage or moisture. The plug must be fitted
correctly.
• Check the yellow and green burner ground cable
for corrosion and to ensure it is firmly connected.
• The ionization electrode is defective and must
be replaced.
! Air in the gas pipe.
• Vent the gas pipe.
! Valves do not open.
• Disconnect the valve plug on the gas combina-
tion control and measure the voltage at the valve
plug during the safety time.
• If the voltage is not adequate, first check fuseF2
(4A). If the display and the LEDs are not lit, it is
defective.
• If the voltage is not adequate, replace the gas
combination control and return it to the supplier.
? Fault code F. and 1flash alternately and the
light is red?
The fault could not be rectified. All start-up at-
tempts have been used and the burner control
unit goes into lock-out.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
• Rectify the cause of the fault as described above
for warningF.1.
? Fault code F. and 2flash alternately?
The flame has gone out during operation. If a
restart has been programmed, an automatic
restart will be completed.
! Poor flame signal due to incorrect burner adjust-
ment.
• Readjust the CO
2
value, see page9 (Adjust-
ing the heater).
! Poor flame signal due to dirty or badly connected
ionization electrode.
• Check the ionization electrode and clean it with
fine abrasive paper if necessary.
• Check the cable connection, cable and plug for
damage or moisture. The plug must be fitted
correctly.
• Check the yellow and green burner ground cable
for corrosion and to ensure it is firmly connected.
• The ionization electrode is defective and must
be replaced.
? Fault code F. and 2flash alternately and the
light is red?
The fault could not be rectified. All start-up at-
tempts have been used and the burner control
unit goes into lock-out.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
• Rectify the cause of the fault as described above
for warningF.2.
? Fault code F. and 3flash alternately?
The burner control unit detects a flame signal
during start-up or in fault status.
! Incorrect flame signal due to leakage/creepage
current.
• Check the wiring, see page4 (Wiring).
• Check the ionization electrode.
! Incorrect flame signal through conductive ce-
ramic insulation, e.g. surge via PE wire, possible.
• Remedy incorrect flame signal. Replace the
ionization electrode and, if necessary, also the
complete burner control unit and housing.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
? Fault code A. and 3flash alternately and the
light is red?
The fault could not be rectified after four auto-
matic start-up attempts. All start-up attempts
have been used and the burner control unit goes
into lock-out.
! This air filter is not OK.
• Check the air filter and clean it if necessary, see
page11 (Cleaning).
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.

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? Fault code A. and 4flash alternately and the
light is red?
Burner fan continues to operate when the burner
control unit is in idle state.
! Wiring fault.
• Check whether the wiring from plugX21 to the
burner fan has continuity.
! A vacuum is generated in the chimney due to
strong wind and this affects the burner fan.
? Fault code A. and 5flash alternately?
The burner fan does not reach the required speed
when starting up.
! The air route is blocked.
• Check the air supply route.
! This air filter is not OK.
• Check the air filter and clean it if necessary, see
page11 (Cleaning).
! Fan motor defective.
• Check motor.
! Wiring fault.
• Check wiring (plugs X21 andX12).
? Fault code A. and 5flash alternately and the
light is red?
The fault could not be rectified. All start-up at-
tempts have been used and the burner control
unit goes into lock-out.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
• Rectify the cause of the fault as described above
for warningF.5.
• Check the air filter and replace it if necessary.
? Fault code A. and 6flash alternately?
The burner fan does not reach the required speed
during operation.
! The air route is blocked.
• Check the air supply route.
! This air filter is not OK.
• Check the air filter and clean it if necessary, see
page11 (Cleaning).
! Fan motor defective.
• Check motor.
! Wiring fault.
• Check wiring (plugs X21 andX12).
? Fault code A. and 7flash alternately?
! The air filter is becoming blocked and must be
cleaned shortly.
• Check the air filter and clean it if necessary, see
page11 (Cleaning).
? Fault code A. and 8flash alternately?
The main fan does not start during the start-up
attempts.
! The pressure switch does not switch.
• Check the air hose on the pressure switch for
dirt and moisture and clean it.
• Check the pressure switch and replace it if nec-
essary.
! The main fan is rotating in the wrong direction.
• Check the wiring. The rotating field may be incor-
rect. Swap L1 and L2, see page4 (Wiring).
! Main fan defective.
• If possible, remove the main fan and replace it.
? Fault code A. and 8flash alternately and the
light is red?
The fault could not be rectified. All start-up at-
tempts have been used and the burner control
unit goes into lock-out.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
• Rectify the cause of the fault as described above
for warningA.8.

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? Fault code A. and 9flash alternately and the
light is red?
The main fan continues to operate after the de-
vice has been switched off.
! Wiring fault.
• Check the wiring to actuate the main fan, see
page4 (Wiring).
! The pressure switch does not switch.
• Check the air hose on the pressure switch for
dirt and moisture and clean it.
! The main fan is switched off but the pressure
switch signal does not drop.
• Check the pressure switch and replace it if nec-
essary.
! The relay to actuate the main fan is defective.
• Replace the relay.
? Fault code C. and 1flash alternately and the
light is red after 5 minutes?
Signal from safety temperature monitor(STM).
! Temperature has been exceeded.
• Leave heater to cool down for longer.
! The main fan does not switch on.
• Check the main fan.
! Wiring fault.
• Check the wiring to actuate the main fan, see
page4 (Wiring).
! The safety temperature monitor (STM) is incor-
rectly aligned.
• Check the position of the safety temperature
monitor(STM).
! Ambient temperature exceeded.
• The temperature is >40°C. Allow the room to
cool.
! The safety temperature monitor (STM) is measur-
ing an incorrect temperature.
• Replace the safety temperature monitor.
! The heater is badly soiled.
• The heater must be cleaned urgently.
! Installation position.
• The heater is too close to other heaters, see
page2 (Installation).
! Incorrect CO2value.
• The heater is not set correctly and must be ad-
justed, see page9 (Adjusting the heater).
? Fault code C. and 2flash alternately?
Signal from safety temperature limiter(STL).
! Temperature has been exceeded.
In the event of a power failure during operation,
the heater will be switched off without a cool-
ing phase. In the event of a brief power failure
(<5minutes), the heat exchanger will heat the
device excessively and the STL will issue a signal.
• In this case, Controlled air flow mode is activated.
If the heater has been successfully cooled within
1minute, it will restart.
? Fault code C. and 2flash alternately and the
light is red?
Signal from safety temperature limiter(STL).
! The cause of the fault as described above for
warningC.1 could not be rectified.
• Check the heater for damage, see page19
(Visual inspection).
? Fault code C. and 3flash alternately and the
light is red?
Temperature limiter (TL) has tripped.
! Wiring fault.
• Check contact at plug X16.
? Fault code C. and 4flash alternately?
Capacity reduction function active. The capacity
reduction function is activated 10°C below the
trip temperature of the safety temperature moni-
tor(STM).
! The main fan does not switch on.
• Check the main fan.
! Wiring fault.
• Check the wiring to actuate the main fan, see
page4 (Wiring).
! Ambient temperature exceeded. The temperature
is >40°C.
• Allow the room to cool.
! The heater is badly soiled.
• The heater must be cleaned urgently.
! Installation position.

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• The heater is too close to other heaters, see
page2 (Installation).
! Incorrect CO2value. The heater is not correctly
set.
• Adjust the heater, see page9 (Adjusting the
heater).
? Fault code C. and 9flash alternately and the
light is red?
! Temperature sensor incorrectly connected.
• Check contact at plug X22.
! Temperature sensor is below -30°C.
! Temperature sensor defective.
• Replace the temperature sensor.
? Fault code E. and 1flash alternately?
! The remote reset input is defective.
• If you use the remote reset input, contact your
supplier.
? Fault code E. and 2flash alternately and the
light is red?
! An adjustable parameter and the CRC check are
not the same. The parameters are implausible.
• Order a new BCC. Contact your supplier.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
? Fault code E. and 3flash alternately and the
light is red?
! A fixed parameter and the CRC check are not
the same. The parameters are implausible.
• Order a new BCC. Contact your supplier.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
? Fault code E. and 4flash alternately and the
light is red?
! Limits for fixed parameters not observed.
• Order a new BCC. Contact your supplier.
? Fault code E. and 5flash alternately and the
light is red?
! The BCC is not connected.
• Connect the BCC to the printed circuit board.
? Fault code E. and 6flash alternately and the
light is red?
! An incorrect BCC is connected. The BCC must
be compatible with the TR75.
• Remove the BCC and connect the correct BCC
to the printed circuit board, see page7 (Burn-
er Chip Card (BCC)).
? Fault code E. and 8flash alternately?
! Programming mode is active.
• As soon as Programming mode has been de-
activated, the display will go out.
? Fault code E. and 9flash alternately?
! Internal electronics fault.
• Remove the BCC and send it to your supplier.
! Fuse defective.
• Check external fuseF1 (8A).
? Fault code U. and 1flash alternately and the
light is red?
! Voltage supply is below the limit (programmable
limit, e.g. <160V).
• Ensure that adequate mains voltage is supplied.

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? Fault code U. and 2flash alternately and the
light is red?
! Voltage supply is above the limit (programmable
limit, e.g. >260V).
• Ensure that adequate mains voltage is supplied.
? Fault code U. and 3flash alternately and the
light is red?
! All start-up attempts in the programmed voltage
range (e.g. 160 – 180V) are unsuccessful. The
last start-up attempt is not made to prevent a
lock-out.
• Ensure that adequate mains voltage is supplied.
? Fault code U. and 5flash alternately and the
light is red?
! While a fault was pending, the unit has been
successfully reset more than 5 times within
15minutes using the remote reset input.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
? Fault code U. and 6flash alternately and the
light is red?
! The unit has been unsuccessfully reset more
than 10times within 15minutes using the remote
reset input.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
? A circulating dash is displayed rather than
a fault code?
▷ After switching on the voltage, a circulating dash
is displayed.
▷Three possible pieces of information are output:
! Switch-on delay time running.
Or
! Cycle lock active. The time (cycle lock) between
two starts is too short.
• The display will go out automatically as soon as
the time between two starts is long enough. The
burner control unit will ensure a pause between
start-up attempts on the basis of its parameteri-
zation. This warning is displayed during this time.
Or
! The main fan is switched off but the pressure
switch signal does not drop. A burner restart is
not possible.
• After 25s, the display will change to fault code
A. 9.

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Maintenance
CAUTION
To ensure that no damage occurs during operation
and maintenance, please observe the following
instructions. Otherwise, injuries or damage to the
device may occur and/or the function of the device
may be impaired. The supplier/manufacturer cannot
accept liability for damage resulting thereof.
– Have the heater cleaned at least once a year
by qualified maintenance personnel.
– Have the safety functions checked at least once
a year by qualified maintenance personnel, see
page19 (Checking the safety functions and
burner operation).
– Check the chimney once a year with your local
chimney sweep to find whether the flue gas and
air supply routes are clear.
– Sharp-edged metal sheets. Always wear protec-
tive gloves.
– After cleaning or repair work, check that the
components on and in the heater are in good
condition. The device may only be restarted
if all safety devices have been installed and
the safety functions have been checked, see
page19 (Checking the safety functions and
burner operation).
 Switch off the burner control unit.
Visual inspection
 Check all heaters for dirt and clean them accord-
ingly, see page11 (Cleaning).
 Check all heaters for damage and loose parts.
4 The rubber seals between the electrodes and
electrode plugs may be displaced by the water
jet. Check whether the seals are fitted correctly.
5 Check the wiring.
6 Check the cable glands.
7 Depending on the number of operating cycles,
we recommend that the ignition electrode and
ionization electrode are replaced once per year.
8 Check the seal on the housing cover of the burner
control unit. Replace it if necessary.
9 Check the inside of the housing cover for traces
of dust, dirt or moisture. If you find such traces,
the cause must be rectified at all times, e.g. by
sealing an open cable gland.
0 Check the cable harness and wiring for signs of
damage.
Number of operating cycles
 Check the number of operating cycles (heat-
erON): the number of operating cycles can be
displayed by pressing and holding the RESET
button. The number of operating cycles is com-
posed as follows in alternating displays:
The first character (X.) stands for X,000,000 op-
erating cycles, the second character (Y) stands
for Y00,000 operating cycles. For example, the
first character is the number 2: the unit has ex-
ceeded 2,000,000 operating cycles. The second
character is the number 3: the unit has exceeded
300,000 operating cycles. The total number of
operating cycles is composed of the numbers
2 and3. This gives a total number of operating
cycles of 2,300,000.
 Disconnect the system from the electrical power
supply.
▷The heater may only be disconnected from the
electrical power supply once the device has been
switched off and post-cooling is complete.
4 Shut off the gas supply.
Checking the safety functions and
burner operation
WARNING
Risk of explosion!
– If these checks are not carried out, the gas
valves might remain open allowing non-com-
busted gas to escape.
Safety functions
 Switch off the heater during operation. Press
ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
▷The flame goes out <1s.
▷ The main fan cools the heater down until it
reaches switch-off temperature.
 Remove the valve plug on the combination con-
trol during operation.
▷The gas valves close <1s.
▷The flame goes out.
▷ The burner control unit displays the fault message
“The flame has gone out during operation”. Fault
code F. and 2flash alternately.
▷ If a restart has been programmed, the burner
control unit will initially attempt to restart and
will then perform a fault lock-out. Fault code F.
and 1flash and indicate the fault message “No
flame has been detected during the safety time”.
 Shut off the inlet pressure during operation.
▷ The burner control unit performs a safety shut-
down: the gas valves are disconnected from the
electrical power supply.
▷The flame goes out.
▷ The burner control unit displays the fault message
“The flame has gone out during operation”. Fault
code F. and 2flash alternately.

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▷If the burner control unit responds in a different
way to that described, a fault has occurred, see
page12 (Assistance in the event of malfunc-
tion).
CAUTION
The fault must be remedied before the system may
be operated.
Checking burner operation
 Switch on the burner control unit ACU.
 Select operating mode 2Heating.
 Check the CO
2
value, see page9 (Adjusting
the heater).
Accessories
Air diffuser
The air diffuser allows the flow of heated air to be
channelled in the required direction. By bending the
plates in the housing, the air flow can be aligned
horizontally and vertically.
CAUTION
Ensure that the plates are always aligned so that the
air can flow out properly. If the air flow is blocked,
the heater will overheat.
Order No.: N70000001
Room thermostat
Use a room thermostat with a hysteresis of ±1°C,
230V, Type TH215.
35
30
25
20
15
10
5
0
°C
TH215
Order No.: N50260145
Pressure reducer
Pressure reducer for LPG.
RECA 1.5 bar to 50mbar, 2x½" internal thread
connection, 10kg/h, Order No.: N50260023.
Manual valve
Manual valve for gas.
2 x ½" internal thread connection,
Order No.: N50260019.
½" internal and external thread connection,
Order No.: N50260027.
BCSoft
There are two PC opto-adapters (PCO) available for
the connection to the PC and BCSoft:
Wireless connection using Bluetooth technology:
Bluetooth adapter PCO 300
Including BCSoft CD-ROM,
Order No.: N70000066.
Cable connection via USB port:
Opto-adapter PCO 200
Including BCSoft CD-ROM,
Order No.: N70000065.
▷
See operating instructions PCO 200 and
PCO300 at http://www.docuthek.com.
▷ The current BCSoft software can be downloaded
from our Internet site at http://www.docuthek.com.
To do so, you need to register in the DOCUTHEK.