Schwank 20S L User manual

novoSchwank
Radiant Tube Heater
20S L / 25S L / 35S L / 45S L / 55S L
single heater and flue gas collection system [herringbone] type F
Technical Manual Technical Instructions
Operating Instructions
Legal Requirements
Assembly Instructions
Installation Instructions
Commissioning
Service Guide
0085BO0037
Version 013 novo shape U INT 38/19 Technical specification subject to
h

SCHWANK GmbH
Bremerhavener Str. 43 • 50735 Cologne • Germany
Postfach 62 02 49 • 50695 Cologne • Germany
Tel.: + 49 [0] 221 / 7176 0
Fax: + 49 [0] 221 / 7176 288
Internet: www.schwank.de
Schwank companies in: Austria ▪Belgium ▪Canada ▪China ▪Czech Republic ▪France ▪Germany ▪Great
Britain ▪Hungary ▪Netherlands ▪Poland ▪Romania ▪Russia ▪Slovakia ▪Ukraine ▪USA ▪Distribution in more
than 40 countries worldwide

Content
3
Version 008 novo shape L 38/19_INT Technical specification subject to change
1 Introduction..........................................................................................................................................................4
2 Your Safety ...........................................................................................................................................................4
Notes for your safety.................................................................................................................................4
3 Scope of Delivery ...............................................................................................................................................5
4 Planning ................................................................................................................................................................7
Position of suspension...............................................................................................................................7
Positioning ..................................................................................................................................................8
Air supply / Exhaust Requirements .........................................................................................................9
5 Legal Requirements ..........................................................................................................................................15
6 Operation ...........................................................................................................................................................16
Switching on the heater ........................................................................................................................16
Switching off the heater ........................................................................................................................16
Fault...........................................................................................................................................................16
Maintenance...........................................................................................................................................16
7 Technical specification ....................................................................................................................................17
Technical data ........................................................................................................................................19
8 Operating description .....................................................................................................................................20
9 Assembly instructions ........................................................................................................................................21
Assembly radiant and burner kit ..........................................................................................................21
Assembly burner kit exhaust gas collection system...........................................................................25
10 Installation instructions ......................................................................................................................................27
Gas-pipe-system and mounting of heaters........................................................................................27
Exhaust flue installation single heater ..................................................................................................29
Installation exhaust collecting system [herringbone].......................................................................29
Electrical installation [wiring diagram] ...............................................................................................30
Electrical connection Operation without MODBUS control............................................................30
Electrical connection Operation with MODBUS control..................................................................31
Electrical connection exhaust gas collecting system [herringbone system] ................................31
11 Commissioning instructions ..............................................................................................................................36
Before commissioning ............................................................................................................................36
Parameter IC 4000/1 and setting .........................................................................................................37
Assignment MODBUS address...............................................................................................................38
External identification MODBUS address.............................................................................................38
Adjusting nominal thermal load at single-stage operation .............................................................39
Commissioning exhaust gas collecting system [herringbone] ........................................................41
Determination of nozzle pressure .........................................................................................................42
12 Service guide / Trouble shooting ....................................................................................................................43
Maintenance and annual check ........................................................................................................43
Error codes ...............................................................................................................................................44
Troubleshooting / Error causes..............................................................................................................45
13 Change of gas family......................................................................................................................................46
14 Accessories........................................................................................................................................................47
Ball guards................................................................................................................................................47
Reflector elongation ..............................................................................................................................50
Set angled mounting tubes...................................................................................................................51
Gas filter groups ......................................................................................................................................51
Water protection cover burner kit .......................................................................................................52
15 Spare parts .........................................................................................................................................................53
Spare parts novoSchwank 20S L – 55S L ..............................................................................................53
Spare parts burner kit novoSchwank 20S L – 55S L.............................................................................54
16 EC type examination certificate.....................................................................................................................55
17 EC declaration of conformity.........................................................................................................................57

novoSchwank shape L
4
Version 008 novo shape L 38/19_INT Technical specification subject to change
1 Introduction
Thank you for choosing a Schwank radiant tube for
your heating-system.
Your novoSchwank is a modern radiant tube for an
economic and comfortable heating in large rooms
and industrial buildings.
Structure and operation of the heater are
according to the requirements of the existing
standards.
Please read this manual carefully before using the
heater. Pay attention to notes and warnings. The
manufacturer will not be held responsible for
damages resulting from installation errors or failure
to comply with the manufacturer’s instructions.
Please pay attention to the warnings in chapter 2
“Your Safety”.
The radiant tube novoSchwank must be exclusively
used for the purpose it was intended. Any other
use is to be considered improper and therefore
dangerous. Its observance is imperative for the
proper operation of our devices, and is thus the
condition for our warranty.
2 Your Safety
You will find the following symbols in this manual:
Danger!
Note that you and others can be hurt.
Attention!
Note that the appliance can be
damaged.
Danger!
Note that electrical shocks can be very
dangerous. Pay attention while working
on the electrical equipment.
Advice!
You find additional instructions about the
application/handling of the heater.
Notes for your safety
This appliance is designed according to the
requirements of the existing standards.
Nevertheless it is possible that dangers for you and
others result from the installation and/or operating
errors.
To avoid this, please read and follow the
instructions carefully.
General Notes
Only use the radiant tube if it is in a technically
faultless condition.
This manual is an integral and essential part of the
product and must be given to the user. Keep the
manual near the heater.
Any person pursuing any of the following tasks must
read this manual:
operating
assembling
installation
commissioning
maintenance / trouble shooting
You need an explicit permission from the
manufacturer for any kind of changes and
reconstruction.
Use original spare parts only.
Safety for the electrical equipment
Danger of electrical shocks!
Electrical shocks can be very dangerous!
The electrical installation must be carried out by a
qualified service engineer following the existing
national and international standards.
Check the electrical equipment regularly.
Defect wires etc. must be replaced immediately.
The appliance must be cut off from the power
supply while working with the electrical equipment.
Make sure that nobody can connect the
appliance to the power supply while you are
installing or maintaining the kit.
After-sales Service
For all installation operations, start-up, gas
changes, etc. always consult a qualified service
engineer.
In case of doubt, contact SCHWANK GmbH,
phone + 49 [0] 221 / 7176 0.


novoSchwank shape L
5
Version 008 novo shape L 38/19_INT Technical specification subject to change
Burner kit
Reflector
Tube bar
Suspension brackets Tubes
Flange packing
Reflector end plate
3 Scope of Delivery
Fig. 1: Tube heater novoSchwank 35S L
Scope of delivery
The radiant tube heater novoSchwank consists of:
Burner-kit with gas-burner, pre-mixing chamber,
burner control unit IC 4000/1,
gas combination valve [single-stage]
air differential pressure switch, electrical plug
connection and fan, burner kit complete
preassembled
Radiant tubes with turnaround box, flange
packing,
Corrosion resistant and radiant-optimized
reflector, end cap and brackets for hanging
Accessories
Central control unit SchwankControl Touch with
temperatures and operating schedules,
MODBUS control
Central control SRT-1 with temperatures and
operating schedules
Gas cock [gas connection] with thermal shut-off
device
Gas hose connection
Gas filter
Supply air- / exhaust flue-system
Adjustable steel wire suspension system [Gripple]
Brackets for wall mounting of angled position
[15-30°] for novoSchwank L
Flue gas diverter [type A]
Ball protection grids [e.g. for sport halls]
Reflector elongations
Set for angled mounting
Water protection cover box for burner kit
[stainless steel]
Flue gas adapter

novoSchwank shape L
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Version 008 novo shape L 38/19_INT Technical specification subject to change
Structure of burner kit
Fig. 2: Burner kit with burner control unit IC 4000/1
1. Burner control unit IC4000/1
2. Air pressure switch
3. Fan air restrictor plate
[incoming side, not shown]
4. Fan
5. Air baffle plate
[only 20S L / 25S L / 35S L / 45S L / 55S L]
6. Gas combination valve
[1-stage]
7. Test nipple connection pressure
8. Test nipple nozzle pressure
9. Adjustment screw nozzle pressure
10. Adjustment screw start step valve
11. Inspection glass
12. Burner cup
13. Burner nozzle
14. Ignition and ionisation electrode
15. Ignition cable
16. Ionisation cable
17. 3-pin power supply socket
18. Locking screw
19. Venturi
20. Burner baffle [only 20S L / 25S L / 35S L]
21. Gasket

novoSchwank shape L
7
Version 008 novo shape L 38/19_INT Technical specification subject to change
4 Planning
Room temperature control
Radiant tube heating-systems must be equipped
with a temperature control.
Section heating is allowed without temperature
control.
Position of suspension
Suspension height
Radiant tubes must be positioned so that no one in
the radiation area is exposed to an extreme high
heat level. This is ensured when the minimum
suspension heights shown in the following table are
adhered to:
Tab 1: Minimum suspension heights
Key:
A = Minimum height when hanging horizontally
B = Minimum height when hanging angled
Type a
[cm] b [cm] c [cm] d [cm]
20S L 110 20 15 15
25S L 110 20 15 15
35S L 130 20 15 15
45S L 170 25 25 25
55S L 230 35 35 35
Tab 2: Safe distances
Key:
a = Minimum radial safety distance [inside radiation area]
b = Minimum upper safety distance when hanging horizontally
c = Minimum upper safety distance when hanging angled
d = Minimum lateral distance to supply pipes outside radiation
area
Distances to flammable materials in the
radiant area
Radiant tubes must be positioned so that the
surface temperature of:
components with flammable materials,
flammable equipment, stored flammable
materials
never rises above 85° C.
Fig. 3: Suspension heights and distances for horizontal
application
Fig. 4: Suspension heights and distances for angled application
Direction of radiation
Radiant tubes novoSchwank can be positioned
horizontal or at an angle [max. 30° from vertical].
For this purpose suspension steel chains and cables
are installed at the suspension brackets.
Nominal
thermal load in
kW - gross
[net]
Suspension height in m
[max. radiation intensity 200 W/m2]
A = horizontal B = angled [30°]
16.7 [15] 3.5 m 3.1 m
21.1 [19] 4.0 m 3.6 m
32.2 [29] 4.8 m 4.3 m
43.3 [39] 5.5 m 4.9 m
54.4 [49] 6.8 m 6.2 m

novoSchwank shape L
8
Version 008 novo shape L 38/19_INT Technical specification subject to change
Positioning
The radiant tube can be mounted with
chains [links min. 4 mm]
adjustable steel wire suspension system
[Schwank accessories]
If you chose chains please use bolts with lock nuts
for fixing the chain to the suspension bracket.
The radiant tube has to be fixed by
vertical chains etc. to the roof or to
supporting devices.
Chains and steel cables have to be fixed
in vertical direction or slightly diagonally
outwards above the fixing points of the
suspension brackets to the roof or to
supporting devices. Fixing of the
suspension cables or chains diagonally
inwards to the centre of the heater is not
permitted [see Fig 5].
Please note that the radiant tube being
in operation expands several
centimetres because of thermal
expansion. Avoid therefore inflexible
suspension.
Do not use fixing elements like open
hooks etc.
Hang the heater in balance. We recommend the
use of turnbuckles or adjustable steel cable grips
for ease of adjustment and balance.
Fixing points for chains or steel cables on the heater
are shown in Fig. 12 and 13 on pages 17 and 18.
Attention!
If you do not align the burner kit
correctly material damage and
destruction of the heater may occur.
Fig. 5: Chains and steel wire mounting
Fig. 6: Slope of radiant tube heater
SCHWANK GmbH will not accept liability
for damages caused by incorrect
mounting of the burner kit. Correct
mounting is the responsibility of the
installer.
Attention!
Make sure that the heater has in
longitudinal direction a slight slope
[3 mm per meter] to the turnaround box
[Fig. 6].
wron
g
wron
g
correct
Correct = vertical or slightly
diagonally outwards
20S L / 25S L /35S L: x=20mm
45S L: x=30mm
55S L: x=50mm
wrong = diagonally inwards

novoSchwank shape L
9
Version 008 novo shape L 38/19_INT Technical specification subject to change
Air supply / Exhaust Requirements
The calculation of air supply / exhaust
requirements of a building heated by radiant tube
heaters is subject of European Directive EN 13410.
Please follow local by-laws as well.
Please see the max. lengths of combustion air
supply- and exhaust flue pipe on [Tab. 3].
Place of Installation
The room to be heated must have an air volume of
minimum 10 m³ for each kW of the nominal
thermal load of the installed heater.
Air supply [combustion air from inside the
room, types A3 and B23]
Heating installations with combustion air from
inside the room are only allowed in rooms without
string air pollution. Otherwise use system with
combustion air from outside [type C].
In halls and buildings with a normal air change by
means of joints and gaps it is not necessary to
install additional equipment to ensure combustion
air supply.
Air supply / exhaust systems
For the radiant tube novoSchwank the following air
supply / exhaust systems are possible:
1. Indirect flue into the room
[Type A3 without exhaust system,
combustion air from inside the room]
2. Flued with individual exhaust system,
combustion air from inside the room
[Type B23]
3. Flued with individual exhaust system,
combustion air from outside the room
[Type C]
4. Flued with flue collecting system and
central flue fan – combustion air either from
inside or from outside
[according to EN 777, Type F]
1. Indirect flue into the room
[Type A3 without exhaust system combustion
air from inside the room]
The exhaust air of the tube heater has to be
conducted from the inside of the room to the
outside.
Conduction of the exhaust air may be carried out
with one of the following 3 methods:
a) Thermal ventilation: Combustion air and
exhaust air are to be conducted through
fixed outlets positioned on the roof or on
the walls of the building.
b) Mechanical ventilation: Combustion air and
exhaust air are to be conducted through
one or more fans positioned on the roof or
on the walls of the building.
c) Natural ventilation: Combustion air and
exhaust air are to be conducted through
outlets as a result of differences in pressure
and in temperature between the internal
and external side of a building.
For exact dimensioning and positioning
of supply air and exhaust air outlet of the
building according to EN 13410 or
G 638-2 please contact Schwank GmbH,
phone +49 [0] 221 / 7176 0.



novoSchwank shape L
10
Version 008 novo shape L 38/19_INT Technical specification subject to change
2. Exhaust flue with individual exhaust system -
combustion air from inside the room
[Type B23]
Only use this system in rooms with no air pollution
and without relevant pressure differences to
outside. Otherwise use type C.
3. Exhaust flue with individual exhaust system -
combustion air from outside the room
[Type C]
Combustion air and exhaust air are to be
conducted by a temperature stable, concentric
pipe from a wall or roof entrance.
Max. length of the concentric pipe can be 6 m
plus two 90° elbows.
The concentric pipe ends at a bifurcated pipe.
Please ensure that theconnection for exhaust air
between heater and bifurcated pipe is a flexible
pipe. Do not use back-pressure valves or dampers
in the exhaust flue.
Tab. 3: air/exhaust routing
Fig. 7: Air/exhaust-system,
version stainless steel
4. Exhaust flue with flue collecting system and
central flue fan
[according to EN 777, Type F]
The heating installation must not exceed 10 radiant
tubes. The exhaust air of each tube is collected
via a central collecting tube system by a central
flue fan and led to the chimney. Planning,
construction and layout of such installations must
be carried out by Schwank employees, as well as
commissioning. The strict observance of the
Schwank layout-drawings and calculation figures
are the precondition of the manufacturer’s
warranty.
With system F the radiant heaters will be installed
with their individual flue fans. Please note that it
necessary to install in the collecting pipe behind
each radiant heater and in the following collection
pipes damper or a pressure-balancing device. This
ensures a precise regulation and an even exhaust
flue of each radiant tube.
For detailed information regarding
setting up and commissioning of a flue
collection system please see
corresponding sections in chapters
4, 10 and 11.
Max.length
betweenheater
androof/wall
entrance
max.number
ofelbows
(90°)
Øofair/exhaust
flue
6m2100mm
novoSchwankshapeL

novoSchwank shape L
11
Version 008 novo shape L 38/19_INT Technical specification subject to change
Indirect flue into the room with flue gas diverter, Type A3
For indirect flue into the room a
flue gas diverter must be installed
to prevent backflow of flue gas
into the air inlet.
Note that the flue gas diverter is
mounted in a position so that the
flue gas is diverted from the
burner.
Flue gas diverter code no. 126 70180
Fig. 8: Indirect flue into the room with flue gas diverter
Flue gas diverter in right
mountin
g
p
osition

novoSchwank shape L
12
Version 008 novo shape L 38/19_INT Technical specification subject to change




Flexible exhaust system novoSchwank 20S L – 55S L [wall terminal], Type B23
- version stainless steel -
Stainless flexible pipe to avoid install
with sink.
Join parts of the wall terminal by
compression strong together!
All joints inside of the building tighten
securely with clamp fittings!
The wall terminal is mounted with a
small gradient to outside to prevent
intrusion of driving rain.
The wall terminal is fastened to the
building wall with screws by means of
the integrated flange plate. The flange
plate supports and secures the wall
terminal.
Please note the safety distance to
flammable materials:
- single-wall exhaust pipe: 80 mm
- double-wall exhaust pipe +
wall terminal: 0 mm
System certification tube heater
novoSchwank U with exhaust line system
Future ew CE 0432–CPD-219983 /
Future ew-flex CE 0432–CPD-219952 /
Future dw CE 0432-CPD-219996
[Schräder]
Following components are required for mounting
the wall terminal stainless steel version
[Distance heater- terminal approx. 1.5 m]:
Stainless steel exhaust system wall terminal
DN 100/160: Article no. 12202210
Fig. 9: Flexible exhaust system novoSchwank 20S L – 55S L [wall terminal], version stainless steel

novoSchwank shape L
13
Version 008 novo shape L 38/19_INT Technical specification subject to change




Flexible exhaust system novoSchwank 20S L – 55S L [roof terminal], Type B23
- version stainless steel -
Stainless flexible pipe to avoid install
with sink.
Join parts of the roof terminal by
compression strong together!
All joints inside of the building tighten
securely with clamp fittings!
The roof terminal is fastened with screws
by means of the integrated flange plate
on the building ceiling. The flange plate
supports and secures the roof terminal.
Following components are required for mounting
the roof terminal stainless steel version
[Distance heater- terminal approx. 1.5 m]:
Stainless steel exhaust system roof terminal
DN 100/160 Article no. 12201940
Please note the safety distance to
flammable materials:
- single-wall exhaust pipe: 80 mm
- double-wall exhaust pipe +
roof terminal: 0 mm
System certification tube heater
novoSchwank U with exhaust line system
Future ew CE 0432–CPD-219983 /
Future ew-flex CE 0432–CPD-219952 /
Future dw CE 0432-CPD-219996
[Schräder]
Fig. 10: Flexible exhaust system novoSchwank 20S L – 55S L
[roof terminal], version stainless steel

novoSchwank shape L
14
Version 008 novo shape L 38/19_INT Technical specification subject to change
Control point chimney
sweeper
Tube heater
Damper behind heater
Connecting pipe
Collecting exhaust pipe
Central fan
Damper in front of central
fan
Exhaust gas
i
Exhaust pipe collecting system [herringbone] with central fan
System F approved according to EN 777 and DIN EN 416
Exhaust pipe collecting system consists of
following main components:
Tube heater novoSchwank
Spiral duct and connection elements for
exhaust collecting system [different
dimensions]
Central low-pressure fan
Fan monitoring kit
Article no. 700 0012 0
Planning and calculation of the
complete system including collecting
pipes, fans and chimneys
must only be done by Schwank.
Planning details have to be strictly
adhered to during mounting and
assembly. Commissioning of the system
should be carried out by Schwank.
Fig. 11: Installation exhaust collecting system with central fan, system F [principle scheme]

novoSchwank shape L
15
Version 008 novo shape L 38/19_INT Technical specification subject to change
5 Legal Requirements
We recommend that these installation guidelines
should be observed with the relevant Building
Standards Regulations of your country. Comply
with any local by-laws and the current IEE Wiring
Regulations.
Notwithstanding their limited scope, the
appliance should be installed by a competent
person in accordance with the relevant
provisions of the Gas Safety [Installation and Use]
Regulations. Caution must also be taken of any
obligations arising from the Health and Safety of
Work Act. Full compliance with all relevant
regulations, including amendments in force at
the time of installation is a requirement of our
warranty.
In Germany the following rules, standards and
regulations must be observed.
EnEV Verordnung über
energiesparenden Wärmeschutz
und energiesparende
Anlagentechnik bei Gebäuden
DIN EN 12831 Heizungsanlagen in Gebäuden
Verfahren zur Berechnung der
Norm-Heizlast
DIN EN 13384 Abgasanlagen
DIN V 18599 Energetische Bewertung von
Gebäuden – Berechnung des
Nutz-
End- und Primärenergiebedarfs
für Heizung, Kühlung, Trinkwasser
und Beleuchtung
DVGW G 660 Technische Regeln für die
mechanische Abführung der
Abgase von Feuerstätten
VDE 0722 Elektrische Vorschriften
VDE 0100 Bestimmungen für das Errichten
von Starkstromanlagen
Beachten Sie außerdem die Bestimmungen der
jeweiligen
LBO Landesbauordnung
FeuVO Feuerungsverordnung der
Länder
TAB Technische Anschluss-
bedingungen der örtlichen
Energieversorgungs-
unternehmen

novoSchwank shape L
16
Version 008 novo shape L 38/19_INT Technical specification subject to change
6 Operation
The installation must be carried out by
a qualified engineer following the
manufacturer’s instructions.
SCHWANK will not accept liability damages
caused by improper assembly and/ or operating
of the heater. Proper assembly and operation is
the responsibility of the user.
Switching on the heater
First switch on the central control unit
SchwankControl Touch and activate a
heating command.
After a pre-purge period of about 25 sec.
the ignition starts.
Switching off the heater
Disable the heating command on central
control unit SchwankControl Touch.
If the radiant tube is controlled by a thermostat
the heater will be switched on and off
automatically.
Fault
If no flame is reported during the pre-purge
period and the safety time [approx. 30 sec.] the
heater repeats the ignition process. If there is no
flame after the second ignition process the
heater switches off automatically and is locked.
Investigation and repair must be carried
out by authorized personnel. After
clearance of the fault the heater can be
reset.
The cause of the fault / error code is
displayed on the central control unit
SchwankControl Touch or can read out via
corresponding service software IC 4000.
See chapter 12 for error codes.
Lock release [Reset]
Activate the reset command via the
central control unit or interrupt the electric
power supply for 3 seconds.
Maintenance
Servicing of the heater is essential for continued
efficient operation. Servicing should be carried
out not less than once a year by a qualified
service engineer. After any servicing, the heater
must be recommissioned as detailed in
Chapter 12.


novoSchwank shape L
17
Version 008 novo sha
p
e L 38/19
_
INT Technical s
p
ecification sub
j
ect to chan
g
e
7Technical
specification
Appliance Automatic heating device, heat
transfer by means of infrared dark
radiation.
Fuel Types Natural gas
Propane
Minimum connection pressure in front of valve
Attention!
Max. connection pressure: 60 hPa
Gas connection 20S L – 35S L R=1/2’’ male
45S L – 55S L R=3/4’’ male
Exhaust gas Flange at radiant tube end
connection for exhaust connection
Ø 100 [flexible stainless steel
pipe / exhaust gas adapter]
Electrical connection power supply
Single-phase AC 230 V, N, PE - 50Hz
The connecting cable for the power supply is
connected to the IC 4000/1 burner control with
the provided 4-pin plug.
The power supply for the heater must be flexible
with maximal wire cross-section
- 3x 1.5 mm2Ölflex- or silicone cable
To set the burner kit free of voltage it is only
necessary to remove the plug of the power
supply.
Regulation
The heating system is controlled via the central
control unit SchwankControl Touch.
The corresponding heating commands for the
heater are sent via MODBUS communication.
Connection MODBUS control from
SchwankControl Touch to IC 4000/1
Use for MODBUS transmission max. 3x 0.5 mm2
cable.
Route the cable through the lower cable gland
into the housing of burner control unit IC 4000/1
and connected to the corresponding spring
terminals on the circuit board.
Fig. 12: Dimensions novoSchwank 20S L / 25S L / 35S L [view from below]
Gas type 20S L – 55S L
Natural Gas H 15 hPa
Natural Gas L 20 hPa
Propane 40 hPa
novoSchwank 20S L / 25S L
[all dimensions in mm]
Detail A
s
ee page 18
Detail B
s
ee page 18
novoSchwank 35S L
[all dimensions in mm]

novoSchwank shape L
18
Version 008 novo shape L 38/19_INT Technical specification subject to change
Fig. 13: Dimensions novoSchwank 45S L / 55S L [view from below]
novoSchwank 45S L
[all dimensions in mm]
Detail A
Tube overhang to last suspension
bracket 45mm for 20S L –
55S L
Detail B
Cross dimensions burner unit
20S L – 55S L A=80mm
novoSchwank 55S L
[all dimensions in mm]

novoSchwank shape L
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Version 008 novo shape L 38/19_INT Technical specification subject to change
Technical data
Gas 20S L 25S L 35S L 45S L 55S L
Natural gas H Gas input - gross [kW] 16,7 21,1 32,2 43,3 54,4
Gas input - net [kW] 15.0 19.0 29.0 39.0 49.0
G 20 1) Gas consumption [m
3
/h] 1.50 1.91 2.91 3.91 4.91
Natural gas L Gas input - gross [kW] 16,7 21,1 32,2 43,3 54,4
Gas input - net [kW] 15.0 19.0 29.0 39.0 49.0
G 25 2) Gas consumption [m
3
/h] 1.75 2.22 3.38 4.55 5.72
Propane Gas input - gross [kW] 16,4 20,7 31,6 42,5 53,4
Gas input - net [kW] 15.0 19.0 29.0 39.0 49.0
G 31 3) Gas consumption [kg/h] 1.17 1.48 2.25 3.03 3.81
Weight [kg] 51 51 72 92 114
of air/exhaust flue [mm]
Electrical consumption [W] 91
Electrical protection
Gas connection (male thre
a
Electrical supply
Ignition / Control
CE-Identification
by automatic controller system
CE - 0085 BO 0037
R½“ R3/4“
novoSchwank
Ø 100
IP 20
104
230 V/ 50 Hz ~
Spark ignition and ionisation control
Tab. 4: Technical data novoSchwank
1]Hi,n = 9,97 kWh/m3/ 2] Hi,n = 8,57 kWh/m3 / 3] Hi,n = 12,87 kWh//kg
Tab. 5: Function parts burner kit novoSchwank
1]Hi,n = 9,97 kWh/m3/ 2] Hi,n = 8,57 kWh/m3 / 3] Hi,n = 12,87 kWh//kg
Gas 20S L 25S L 35S L 45S L 55S L
Natural gas H Burner nozzle [mm] Ø 3.50 Ø 3.85 Ø 5.00 Ø 5.85 Ø 6.90
G 20 1
)
Fan air restrictor plate N 20S N 25S N 35S N 45S N 55S
Air baffle plate N 20S N 25S N 35S + spin N 20S L spin N55S
Burner baffle plate Ø 50 Ø 65 Ø 65 / /
Nozzle pressure [mbar] 10 10 10 10 10
Start step pressure [mbar] 5 5 5 4 4
Natural gas L Burner nozzle [mm] Ø 3.50 Ø 3.85 Ø 5.00 Ø 5.85 Ø 6.90
G 25 2
)
Fan air restrictor plate N 20S N 25S N 35S N 45S N 55S
Air baffle plate N 20S N 25S N 35S + spin N 20S L spin N55S
Burner baffle plate Ø 50 Ø 65 Ø 65 / /
Nozzle pressure [mbar] 15,2 15,2 15,2 15,2 15,2
Start step pressure [mbar] 7 7 7 6 6
Propane Burner nozzle [mm] Ø 1.95 Ø 2.15 Ø 2.80 Ø 3.25 Ø 3.65
G 31 3
)
Fan air restrictor plate N 20S N 25S N 35S N 45S N 55S
Air baffle plate N 20S N 25S N 35S + spin N 20S L spin N55S
Burner baffle plate Ø 50 Ø 65 Ø 65 / /
Nozzle pressure [mbar] 37 37 37 37 37
Start step pressure [mbar] 22 22 22 22 22
novoSchwank

novoSchwank shape L
20
Version 008 novo shape L 38/19_INT Technical specification subject to change
8 Operating
description
Start-up
If heat demand exists, the fan will start up
automatically. A differential pressure arises in the
burner box, which is reported to the ignition kit via
the differential pressure switch.
After a pre-purge period of about 25 seconds the
automatic ignition starts [max. ignition time 5
sec.]. The twin solenoid valve with pressure
regulator opens the gas supply to the burner in 2
steps. The burner flame is controlled by an
ionisation electrode. The ignition is switched off, if
the ionisation electrode reports a flame to the
burner control unit IC 4000/1 within the safety
time.
If the ignition process fails, the burner control IC
4000/1 repeats the start-up for one more time.
Operation
A very long laminar flame is created in the first
tube by the special burner construction. The hot
flue heats the tube surface while being fed
through the tubes by the fan. The hot tubes emit
long-waved infrared radiation which is directed
to the room by the reflector construction.
The radiant tube heater novoSchwank works with
a closed combustion system. The combustion air
is taken from the room or from the outside. The
flue is evacuated indirectly into the room or
directly by the exhaust pipe or by a special
air/exhaust pipe system.
Fault
If no flame is reported during the pre-purge
period [including 1 repetition of ignition process],
the burner control unit IC 4000/1 will switch off the
radiant tube, error will give, fan runs in post-purge
time for 30 seconds and then heater will lock it.
Investigation and repair must be carried out by
authorized personnel only. After clearance of the
fault, the lock can be reset.
The cause of the fault / error code is displayed on
the central control unit SchwankControl Touch or
can read out via corresponding service software.
See chapter 12 for error codes.
Lock release can carry out by activate the reset
command via the central control unit
SchwankControl Touch or an interruption of the
electric power supply for 3 sec. A new start-up
begins. If no flame signal is reported to the burner
control unit IC 4000/1 during operation, the gas
valve shuts and stops the gas supply immediately.
A new start-up process is repeated.
Error codes and troubleshooting on
pages 44 - 45
Monitoring of the combustion air supply
The combustion air supply is permanently
controlled by the differential pressure switch
during the operation.
If the differential pressure switch is not in rest
position during the start-up the operation will not
start. If the operating contact is not closed during
the pre-purge the system will set in interference
release.
If combustion air supply fails during operation
[lack of air], the differential pressure switch will
close the gas combination valve and stop the
gas supply.
A new start-up process is to be repeated.
