CTC Union GIERSCH RG1-L-Na Manual

Technical Information • Installation Instructions
Gas
Edition August 2019
Right reserved to effect techn. modifica-
tions in the interest of product improvement.
RG1
GB

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E.04.99 • G. 08.08.19
Contents
Overview ........................................................................................................... 3
General information / safety information .................................................................................... 3
Checking scope of delivery and connection data....................................................................... 3
Operating instructions ................................................................................................................ 4
Instruction of operating personnel.............................................................................................. 4
Maintenance and customer service ........................................................................................... 4
Key for code designation ........................................................................................................... 4
Technical specifications ............................................................................................................. 4
Installation ......................................................................................................... 5
Installing flange and burner........................................................................................................ 5
Installing gas assembly.............................................................................................................. 5
Service position.......................................................................................................................... 5
Dimensions for checking the mixer unit ..................................................................................... 5
Establishing electrical connections ............................................................................................ 6
Function ............................................................................................................. 7
Control box LME ........................................................................................................................ 7
Air flow setting, measurement "A".............................................................................................. 10
Air flap positioning motor .......................................................................................................... 10
Compact gas unit ....................................................................................................................... 11
Adjustable gas pressure switch (only on version KE 15) ........................................................... 11
Start-up .............................................................................................................. 12
Adjustment tables ..................................................................................................................... 12
Adjusting gas burner and boiler ................................................................................................. 13
Calculation principle for gas burner adjustment ......................................................................... 15
Design ............................................................................................................... 17
Exploded view and parts list ...................................................................................................... 17
Service instructions/dimensions ........................................................................ 18
Measuring ionisation current ..................................................................................................... 18
Servicing air pressure monitor ................................................................................................... 18
Declaration of conformity ........................................................................................................... 19
Burner overall dimensions / boiler connection dimensions ........................................................ 20
Working ranges .......................................................................................................................... 20

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Overview
Overview
General information / safety information
The installation of a gas-fired system must conform to extensive regulations and requirements. It is there-
fore the duty of the installer to be familiar with all applicable regulations and requirements. Installation, start-
up and maintenance must be performed with utmost care.
The burner must not be operated in rooms with high levels of air humidity (laundry rooms), dust or corrosive
vapours. The boiler room must be ventilated accordingly with ventilation air.
The GIERSCH RG1 series gas burners are suitable for burning natural gas or liquefied petroleum gas and
comply with the European standard DIN EN 676.
Caution !
Improper installation, adjustment, modification, operation or maintenance may result in physical
injury or damage to property/equipment.
Read the instructions prior to use.
This product must be installed in accordance with the valid regulations (e.g. DIN-VDE, DIN-DVGW).
The design and degree of protection of the burner make it suitable for operation in enclosed rooms.
Checking scope of delivery and connection data
Before installing the GIERSCH gas burner, please check that all items included in the scope of delivery are
present.
Scope of delivery:
Burner, sliding flange and gasket, 4 retaining screws, separate operating instructions,
technical information, one 7-pin connector.
Compact gas unit and gasket (see Overview, Page 9).
The gas pipe must be designed to conform to the flow rate and the available gas flow pressure and routed
with the lowest pressure loss over the shortest distance to the burner. The loss of gas pressure via the com-
pact unit and the burner and the resistance on the fuel gas side of the heat generator must be less than
the connection flow pressure.
Caution !
Observe throughflow direction of compact unit.
Operating instructions
The operating instructions together with this technical information leaflet must be displayed in a clearly
visible position in the boiler room. It is essential to write the address of the nearest customer service centre
in the operating instructions.
Instruction of operating personnel
Faults are often caused by operator error. The operating personnel must be properly instructed in how the
burner works. In the event of recurring faults, Customer Service should be notified.

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Overview
Maintenance and customer service
The complete system should be checked once a year for correct functioning and leaks by a representative
of the manufacturer or other suitably qualified person.
We accept no liability for consequential damage in cases of incorrect installation or repair, the fitting of non-
genuine parts or where the equipment has been used for purposes for which it was not intended.
Key for code designation
Technical specifications
Burner type
Technical data RG1(-L)-Na RG1(-L)-Nb RG1(-L)-Fa RG1(-L)-Fb
Min. burner output in kW
12 25 15 25
Max. burner output in kW
40 61 40 61
Min. boiler output in kW
11 23 14 23
Max. boiler output in kW
37 56 37 56
Gas type
for natural gas LL + E = "-N" / for LPG 3B/P = "-F"
Max. gas pressure in mbar
70
Voltage
1/N/PE ~50 Hz - 230 V
Current consumption
start max. / operation
1.9 A / 0.8 A
Electric motor power in W
90
ignition transformer
1x8 kV / 20 mA
Control box
LME 11
Weight in kg
14
Noise emission in dB(A)
≤59
RG 1-L-N(F)
Natural gas LL+E ="-N" or LPG ="-F"
Air shut-off flap
Size
Series

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Installation
Installation
Installing flange and burner
When installing the sliding flange, only tighten screws
1 and 2 otherwise it will not be possible to secure the
burner pipe with screw 3. Slide in the burner, adjust to
furnace depth and tighten the screws in the following
sequence: 3, 4, 5, raising the housing in the process.
Important: Secure the sliding flange so that the
clamping screw 3 is positioned at the top.
Installing gas assembly
• Remove plastic protective plug.
• Install unions including accompanying seals.
• Observe installation position.
• Check connecting point of gas assembly with
non-corrosive foaming agent for leaks and vent gas
pipe.
• When venting gas, discharge safely to atmosphere
with a hose.
Comply with DVGW-TRGI 1986/96 Section 7,
TRF 1988, DIN 4756 and local regulations.
Service position
Risk of injury by fan wheel during activation in
service position.
• Release quick-release locks and detach base plate.
• Suspend base plate with retaining buttons in cross
recesses of housing.
Dimensions for checking the mixer unit
The ignition electrodes are preset at the factory. The dimensions are specified for checking purposes.
Installation position KE
Centre of gas hole to flow plate
and fully tightened.
There is still slight play at the holder.
Grubscrew determines the position of the holder
Caution:
Ionisation rod.
Red cable
Black cable
Ignition electrode
Electrode to centre of gas hole

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Installation
Establishing electrical connections
• Disconnect system from power supply. Main switch "OFF".
• Check polarity of all connectors.
• Wire connector unit in accordance with connection diagram. Lay flexible control line so that boiler door
can still be swivelled.
• Attach cube connector to gas-pressure monitor connector A (grey) and to solenoid valves B (black)
and secure with screw.
• Check correct wiring of wired connector unit X11 according to connection diagram.
• Attach 7-pin connector unit for boiler control (X11) to black-brown socket unit on burner (X12).
• Supply lead to 7-pin connector unit X11 must be protected with a min. 6.3 A slow-blowing or
max. 10 A quick-blowing fuse.
Connection diagram
Key:
F11 External fuse
F21 Ext. temp. controller, 1st/2nd stages
F3 Ext. safety temperature limiter
Q1 Main heating switch
H11 Ext. pilot lamp
H
13
Ext. fault message lamp
L1 Phase
PE Protective earth
P11 Service hour meter
N Neutral
B4
S3
T2
T1
N
PE
L1
N
PE
L1
N
N
F3
F21
H11
P11
H13
Q1
X11 X12
F11
Female adapter X12
on burner
Male adapter X11
to boiler

7
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Function
Function
Control unit LME
Testing the control unit for proper functioning
Danger of fatal injury from electric shocks!
Disconnect electrical cable from power supply before
carrying out any work on live parts! Troubleshooting
may only be carried out by authorised and trained per-
sonnel! Unlocking may only be carried out by an autho-
rised specialist.
After startup and after maintenance of the burner, the following controls to perform.
Burner startup with broken lines to the flame detector:
• Disconnect the cable to the flame monitor and restart the burner.
At the end of the safety time the controller makes a lockout
• Reestablish the connection.
Burner operation with simulated loss of flame:
• Pull the compact unit the square plug from the gas pressure switch and jumper the contacts in the
connector.
• Start the burner.
• Connect operation are the ball valve.
After loss of flame, the controller makes a lockout.
• Remove the jumper in the connector and insert it back to the gas pressure switch of the compact unit.
Burner operation with simulated air pressure loss:
• Pull are the operation from the air hose to the "+" input of the air pressure switch.
The controller makes a lockout.
• Insert the air hose back onto the air pressure switch
Safety and switching functions
In the event of a flame failure during operation, the fuel supply is immediately switched off and the control
box goes into fault mode. A restart takes place in all cases following a mains power failure. A fault is trig-
gered immediately if there is flame detection during pre-ventilation. The position of the air pressure monitor
is continuously checked. There can be no start-up if it is not in its neutral position. A fault is triggered if the
working contact fails to close during pre-ventilation, or reopens. In the event of a lack of air during operation,
the air pressure monitor contact opens and the valves close immediately. The device goes into fault mode.

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Function
Operational status indication
Legend:
Steady on
OFF
Red
Yellow
Green
Color code table for multicolor signal lamp (LED)
Status Colore code Color
Waiting time «tw», other waiting states
.................................
OFF
Oil preheater on
.................................
Yellow
Ignition phase, ignition controlled

Flashing yellow
Operation, flame o.k.
.................................
Green
Operation, flame not o.k.

Flashing green
Extraneous light on burner startup

Green-red
Undervoltage

Yellow-red
Fault, alarm
......................................
Red
Error code output
(refer to «Error code table»)

Flashing red
Interface diagnostics

Red flicker light
.........


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Function
Diagnostics of the cause of fault
After lockout, the red signal lamp will remain steady on. In that condition, visual diagnostics of the cause of
fault according to the error code table can be activated by pressing the lockout reset button for more than
3 seconds. Pressing the lockout reset button again for at least 3 seconds, interface diagnostics will be ac-
tivated. Interface diagnostics works only if the lockout reset button extension AGK20… is not fitted. If, by
accident, interface diagnostics has been activated, in which case the slightly red light of the signal lamp
flickers, it can be deactivated by pressing again the lockout reset button for at least 3 seconds. The instant
of switching over is indicated by a yellow light pulse.
Error code table
During the time the cause of fault is diagnosed, the control outputs are deactivated
- Burner remains shut down
- External fault indication remains deactivated
- Fault status signal (alarm) at terminal 10, according to the error code table
The diagnostics of the cause of fault is quit and the burner switched on again by resetting the burner control.
Press the lockout reset button for about 1 second (<3 seconds).
Red blink code of
signal lamp (LED)
Alarm at
term. 10
Possible cause
2 x blinks ON No establishment of flame at the end of safety time
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner, no fuel
- Faulty ignition equipment
3 x blinks ON Air pressure switch faulty
- Loss of air pressure signal after specified time
- Air pressure switch welded in normal position
4 x blinks ON Extraneous light when burner is started up
5 x blinks ON Air pressure switch time supervision
- Air pressure switch welded in working position
- Error with valve proving (only in conjunction with LDU11...)
6 x blinks ON Free
7 x blinks ON Too many losses of flame during operation (limitation of repetitions)
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner
8 x blinks ON Free
9 x blinks ON Free
10 x blinks OFF Wiring error or internal error, output contacts, other faults
14 x blinks ON CPI contact not closed

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Function
Air flow setting, measurement "A"
1. Distance "A"
2. Locknut for air-restrictor setting
Turn screw (3) clockwise: Air -
Turn screw (3) anticlockwise: Air +
Air flap positioning motor (-L type)
Cooling of furnace avoided during burner standstill.
SA2-F:
Position "OPEN" - "CLOSED" of electric-motor-driven
unit indicated at display lever. When servicing/retrofit-
ting, refer to wiring diagram on Page 17.
Do not turn red positioning lever by hand as
mechanism is destructible.
2
1
3

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Function
Compact gas unit
The compact gas units for GIERSCH gas burners are preassembled and checked for leaks.
Version KE 15:
1-stage precision pressure regulator with high control
quality and adjustable starting gas pressure.
Version KE 10:
1-stage precision pressure controller with high control
quality and adjustable start gas pressure.
The compact gas unit KE 10 is provided with a non-ad-
justable gas pressure switch (switching point 12 mbar
falling).
Technical data of compact gas unit
Gas types: Natural gas, propane and butane, acc. to DIN EN 437/DIN EN 88
Inlet pressure: max. 360 (KE 15), max. 70 mbar (KE 10)
min. 18 mbar
Max. pressure drop: 50 mbar (supply pressure - output pressure)
Ambient temperature: -10 °C to +60 °C
Connecting flanges: The connecting flanges are secured with 4 screws. The flanges can be
turned through 90° or 180° in each case. Pressure measuring points in
inlet and in outlet.
Filter: Nylon wire gauze with chopped-strands mat fleece
Solenoid valves (T. A):
Closing time: < 1 s
Switching frequency:any
Duty factor: 100% DF
Degree of protection:IP 54 to IEC 529
Adjustable gas pressure switch
(only on version KE 15)
The gas pressure monitor serves to monitor the gas in-
let pressure. The burner is shut down if the gas inlet
pressure drops below the set minimum value (preset
at factory to 12 mbar). The burner starts up automati-
cally when the minimum pressure is exceeded.
This setting should be retained.
P
w

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Start-up
Start-up
The values given in the tables are only setting values for start-up. The system settings required
in each case must be redefined if values such as boiler output, calorific value and altitude deviate.
A correction is required in any case.
Adjustment tables: RG1-Na
RG1-Fa
RG1-Nb
Burner output Boiler output
at η = 92%
Gas type Natural gas E: H
in
= 10.4 [kWh/m
3
]Air flow
measurement "A"
[kW] [kW]Gas nozzle pressure [mbar]Gas flow
[m
3
/h][mm]
14.1 13 E 1.4 1.4 6 - 7
17.4 16 E 2.1 1.8 8 - 9
23.9 22 E 3.8 2.4 9 - 11
28.3 26 E 5.5 2.9 11 - 12
34.8 32 E 8.0 3.6 12 - 13
40.2 37 E 11 4.1 12 - 15
Burner output Boiler output
at η = 92%
Gas type Natural gas LL: H
i,n
= 9.3 [kWh/m
3
]Air flow
measurement "A"
[kW] [kW]Gas nozzle pressure [mbar]Gas flow
[m
3
/h][mm]
14.1 13 LL 1.8 1.6 6 - 7
17.4 16 LL 2.6 2.0 8 - 9
23.9 22 LL 4.8 2.7 9 - 11
28.3 26 LL 7.0 3.2 11- 12
34.8 32 LL 10.4 4.0 12 - 13
40.2 37 LL 14.0 4.6 12 - 15
Burner output Boiler output
at η = 92% LPG 3B/P: H
i,n
= 25.8 [kWh/m
3
]Air flow
measurement "A"
[kW] [kW]Gas nozzle pressure [mbar]Gas flow
[m
3
/h][mm]
15.0 14 2.4 0.6 6 - 7
17.4 16 3.0 0.7 8 - 9
22.2 20 5.8 0.9 9 - 10
27.8 26 9.0 1.1 11 - 12
33.3 31 12.3 1.4 11 - 13
40.2 37 15.5 1.6 12 - 15
Burner output Boiler output
at η = 92%
Gas type Natural gas E: H
i,n
= 10.4 [kWh/m
3
]Air flow
measurement "A"
[kW] [kW]Gas nozzle pressure [mbar]Gas flow
[m
3
/h][mm]
25.0 23 E 1.7 2.5 10 - 11
33.7 31 E 3.0 3.4 11 - 12
39.1 36 E 4.3 3.9 12 - 13
44.6 41 E 5.4 4.5 13 - 15
50.0 46 E 6.8 5.1 15 - 18
58.7 54 E 9.2 6.0 20 - 26

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Start-up
RG1-Nb
RG1-Fb
Adjusting gas burner and boiler
The burner can be put into operation once the installation and assembly work has been completed.
• Measure inlet pressure with U-pipe pressure gauge at measuring point "A".
max. 360 mbar (KE 15), max. 70 mbar (KE 10, static pressure)
min. 18 mbar (flow pressure) on RG1...-N
min. 35 mbar (flow pressure) on RG1-F
• Burner and gas assembly are preset at factory to low output. This enables a soft burner start-up.
• Adjusting the burner to the desired nominal output in accordance with the adjustment tables on
Pages 10, 11.
To do so:
• Check gas working pressure with U-pipe pressure gauge at measuring point "B" outlet pressure.
Caution !
Minimum pressure difference (inlet-outlet pressure) 5 mbar!
• Adjust gas pressure and air flow measurement "A" according to adjustment tables, PP. 10, 11.
• Check exhaust gas values here without fail (CO, CO
2
or O
2
).
• Depending on the system, the setting values must be corrected.
• After completion of adjustment, check the setting data.
• Check the gas pressure monitor after start-up. To do so, close ball valve slowly; burner must shut
down but not go into fault mode.
Burner output Boiler output
at η = 92%
Gas type Natural gas LL: H
i,n
= 9.3 [kWh/m
3
]Air flow
measurement "A"
[kW] [kW]Gas nozzle pressure [mbar]Gas flow
[m
3
/h][mm]
25.0 23 LL 2.1 2.9 10 - 11
33.7 31 LL 3.8 3.9 11 - 12
39.1 36 LL 5.5 4.5 12 - 13
44.6 41 LL 6.8 5.1 13 - 15
50.0 46 LL 8.7 5.7 15 - 18
58.7 54 LL 11.7 6.7 20 - 26
Burner output Boiler output
at η = 92% LPG 3B/P: H
i,n
= 25.8 [kWh/m
3
]Air flow
measurement "A"
[kW] [kW]Gas nozzle pressure [mbar]Gas flow
[m
3
/h][mm]
25 23 2.8 1.0 10 - 11
33.7 31 5.3 1.4 11 -12
39.1 36 7.2 1.6 12 - 13
44.6 41 9.0 1.8 13 - 15
50.0 46 11.0 2.1 15 - 18
58.7 54 14.0 2.4 20 - 26
Exhaust gas values Natural gas LL+E LPG propane 3B/P
O
2
content
3.5-5.0%
CO
2
content
9-10% 11-12%

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Start-up
Single-stage gas burner with compact units:
Gas supply pressure measuring point A(P
inlet
)
Gas nozzle pressure measuring point B(P
outlet
)
p
S
= starting gas pressure
p
G
= main gas pressure
p
w
= switching point of gas pressure switch
p
L
= screw cap starting gas pressure
ST = screw cap
D= gas volume adjustment (only on KE 10)
Dimension "A“= adjust in accordance with specifications
in the air volume adjustment table (see Fig. p. 8)
Presetting (only on KE 15):
Locate relevant line of adjustment table according to boil-
er output and adopt setting values.
• Adjust dimension "A" according to specifications of
adjustment table.
Gas nozzle pressure ≤ 5 mbar:
•P
G
: adjust main gas pressure on min.
•P
s
: adjust starting gas pressure according to the spec-
fications of the adjustment tables.
Gas nozzle pressure > 5 mbar:
•P
G
: adjust main gas pressure according to the specifi-
cations of the adjustment tables.
P
s
: starting gas pressure to approx. 40-60% of main gas
pressure , min. 4 mbar.
Precision adjustment KE 10:
• Measure gas nozzle pressure at measuring point B.
• Increase main gas pressure via gas volume throttle Din direction "+“ ("-“ decrease). Adjusting range
approx. 3 - 14 mbar.
• Adapt dimension "A“ air volume adjustment (see adjustment tables pp. 10-11).
• If gas nozzle pressures are less than 3 mbar, turn the gas volume throttle Din direction "-“ until
approx. 3 mbar is reached.
• Turn adjusting screw P
G
in direction "-“ and reduce the nozzle pressure.
• Only if gas nozzle pressures are greater than 14 mbar:
Turn gas volume throttle Din direction "+“ up to the stop. For further procedure see precision adjust-
ment KE 15.
Installation of compact unit
Installation position, vertical line:
as desired
Installation position, horizontal line:
tilted up to max. 90° to left or right, not over head
Minimum distance to walling:
20 mm
KE 15
P
W
A
BP
S
P
G
D
ST
KE 10
P
G
P
S
B
A
P
W
P
L

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Start-up
Precision adjustment on KE 15:
• At measuring point Bmeasure gas nozzle pressure.
Gas nozzle pressure ≤ 5mbar:
• Start burner; if there is no flame formation, check adjustment.
• After approx. 10 sec. correct starting gas pressure ps according to adjustment table.
Gas nozzle pressure > 5mbar:
•Start burner, if there is no flame formation, check
adjustment. If necessary adjust starting gas pressure P
s
higher (attention: always adjust P
s
≤ P
G
)
•After approx. 10 sec re-adjust main gas pressure P
G
according to adjustment table.
•Then adapt dimension "A" air flow setting (see table).
Secure air setting with lock nut.
•Perform an exhaust gas analysis, paying special atten-
tion to eh CO emission.
•Seal off all measuring points.
Calculation principle for gas burner adjustment
The values given in the tables are setting values for start-up.
The necessary system adjustment must be newly determined in each case.
General:
The calorofic value (H
i,n
) of fuel gasses is usually given for normal atmospheric conditions
(0°C, 1013 mbar).
Natural gas type E H
i,n
= 10.4 kWh/m
3
Natural gas type LL H
i,n
= 9.3 kWh/m
3
Gas counters measure the volume of gas in the operational state.
Specifying throughput:
To allow correct setting of the heat generator load, the gas throughput must be determined in advance.
Example:
Height above sea level 230 m
Atmospheric pressure B (according to table) 989 mbar
Gas pressure P
G
at counter 20 mbar
Gas temperature ϑG 16°C
Boiler rating Q
n
100 kW
Efficiency η
K
(assumed) 92%
Calorific value H
i,n
10.4 kWh/m
3
Gas flow in standard state (V
n
)
Air setting
measurement "A"
Exhaust gas values
Reduce
if:
CO
2
too low
O
2
too high
Increase
if:
CO
2
too high
O
2
too low
V
n
Q
n
η
k
H ×i n,
-------------------- 30kW
0 92 10 × 4kWh
m3
-----------
, ,
----------------------------------------
= 3 1m3
h
-------
,= =

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Start-up
Gas flow in operating state (V
B
)
Conversion factor (f)
Annual average air pressure
Key:
Q
n
= boiler rating [kW]
η
K
= efficiency [%]
H
i,n
= lower standard calorific value [kWh/m
3
]
f = conversion factor
B = barometric pressure [mbar]
p
G
= gas pressure at gas counter [mbar]
ϑG = gas temperature at gas counter [°C]
Flow measurement
Determining flow duration at gas meter.
Calculated flow duration in seconds t
spec
for a flow volume of 200 litres (corresponding to 0.2 m
3
)
for the example given above is:
V
B
= 3,3 m
3
/h
Gas flow setting
Mean geodesic height of
supplied region ASL [m]
from 1 51 101 151 201 251 301 351 401 451 501 551 601 651 701
to 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750
Annual average of
air pressure
(mbar) 1016 1013 1007 1001 995 989 983 977 971 965 959 953 947 942 936 930
Measured flow duration in seconds [s] Measures
Greater than calculated flow duration t
spec
Increase gas flow
Less than calculated flow duration t
spec
Reduce gas flow
Equal to calculated flow duration t
spec
Gas flow achieved
V
B
V
n
f
------
3 1m3
h
-------
,
0 94,
-----------------
= 3 3m3
h
-------
,= =
fB P
G
+
1013
-------------- 273
273 ϑ
G
+
--------------------
×=
t
soll
0 2m
3
3600 s
h
---
×,
V
B
m
3
h
------
--------------------------------------
720m
3
s
h
---
V
B
m
3
h
------
--------------------
720m
3
s
h
---
3 3m
3
h
------
,
------------------- 218s====

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Design
Design
Exploded view and parts list
Seq. No. Designation PU Order No.
1 Flow plate with combination electrode for -N 1 34-90-10165
1 Flow plate with combination electrode for -F 1 34-390-10166
2 Combination electrode 5 37-50-20644
3 Replacement set Ionisation cable and Ignition cable 1 47-90-28005
5 Connector unit, 7-pin, green 5 37-50-11015
6 Socket unit 7-pin black-brown 5 37-50-20731
7 Cable gland G4 for ignition cable 20 37-50-11971
8 Cable gland G6 for ionisation cable 20 47-50-10890
10 Lower section, control box 1 37-90-11310-01
11 Control box LME 11 1 47-90-29190
12 Gas nozzle without flow plate for RG1-Na 1 34-90-10161
12 Gas nozzle without flow plate for RG1-Nb 1 34-90-10162
12 Gas nozzle without flow plate for RG1-Fa 1 34-90-10163
12 Gas nozzle without flow plate for RG1-Fb 1 34-90-10164
13 Air pressure monitor DL2E 1 47-90-29266
14 Motor 230 V/50 Hz 90 W with cable 1 31-90-11582
15 Ignition transformer mod. 26/35 1 47-90-24469
16 Positioning drive SA2-F with cable 1 57-90-11592
17 Burner cover 1 34-90-10146
18 Fan ø 120 x 42 mm 1 31-90-10106
19 Air flap assembly (plastic) 5 37-50-20971
20 Housing w. burner pipe (as of 4/91) and intake silencer 1 34-90-10967
21 Intake silencer 1 31-90-21660
22 Assembly unit 1 31-90-11421
24 Flange gasket 5 31-50-10104
- Tightness control TC 1 34-20-40626
- Compact unit CG10 1 47-90-21758
- Compact unit CG15 without TC 1 47-90-22589
- Compact unit CG15 with TC 1 47-90-22728
- Gasket for gas union R ½" 10 37-50-20108
- Ball valve ½" 1 34-20-40601
- Filter mat for KE 1/2“ 1 59-90-50466
ZBZ_1-536

18
E.04.99 • G. 08.08.19
Service instructions/dimensions
Service instructions/dimensions
Measuring ionisation current
The ionisation current must be measured during burn-
er start-up and maintenance or after a fault indication
in the control box.
Measurement of ionisation current shortly after burner
start during:
• Maintenance
• Start-up
• Fault indication.
To do so:
• Open plug connection between cable to control box and cable from ionisation electrode.
• Connect ammeter in series. Measuring range 0...200 µA DC.
l > 5 µA (MMI), > 2 µA (DMG) - o. k.
l < 5 µA (MMI),< 2 µA (DMG) - Unsafe operation!
- Clean burner pipe
- Bend ionisation rod in flame area
- If necessary, replace combination electrode
- If necessary, reverse polarity on ignition transformer (induction current)
- Eliminate moisture and deposits.
Servicing air pressure monitor
• Detach silicone connecting hose and clean, check
switching function.
• Replace air pressure monitor if switching function is
no longer O.K.
To do so:
• Disconnect burner from power supply
(pull 7-pin connector X12).
• Screw off cover.
• Disconnect electrical connectors.
• Release retaining screws on motor.
• Reassemble in reverse order.
„+“ denotes the connecting point for
pressure measurement!

19
E. 04.99• G.08.08.19
Service instructions/dimensions
Declaration of conformity
Declaration of Conformity for Gas Burners
We, Enertech GmbH, Adjutantenkamp 18 in D-58675 Hemer declare under our
responsibility that
gas burner type RG...
is conform with the regulations of these directives
MD2006/42/EG
EMC2014/30/EU
GAD 2016/426/EU
LVD2014/35/EU
RoHS 2011/65/EU
DIN EN 676
and is marked with:
CE-0085
Hemer, 16.01.2018
ppa. i.V.
Wendel Rebbe
Sales director Technical management

08-2019 • Art. no. 70-21-57034-GB-• Printed in Germany • Enertech GmbH
Enertech GmbH • Brenner und Heizsysteme
Adjutantenkamp 18 • D-58675 Hemer • Telephone [phone] • Fax [phone]
E-mail: [email protected] • Internet: http://www.giersch.de
All information in this technical documentation as well as the drawings, photos
and technical descriptions placed at your disposal remain our property and may
not be duplicated without our written permission given in advance.
Subject to alterations.
Burner overall dimensions / boiler connection dimensions
Working ranges
DVGW-checked working ranges as per DIN EN 676.
All dimensions in mm
70
Ø316
min. 290 130
min.155
228
40
140
140
87
340 ± 10
8033
RG1
Pipe outside dia. d
88 mm
Hole circle dia. k
150 mm
Outside dia. f
170 mm
M8
k
d
f
90°
KE 15
KE 10
2,0
1,6
1,2
0,8
0,4
0
RG1-Na
10 20 30 40 50
Burner output [kW]
Combustion-chamber resistance [mbar]
2,0
1,6
1,2
0,8
0,4
0
RG1-Fa
10 20 30 40 50
Burner output [kW]
Combustion-chamber resistance [mbar]
2,0
1,6
1,2
0,8
0,4
0
RG1- Fb/Nb
20 30 40 50 60
Burner output [kW]
Combustion-chamber resistance [mbar]