Schwank infraSchwank D 40U User manual

BROCSCH115.1

Contents
Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change
1 Introduction................................................................................................................3
2 Your Safety................................................................................................................3
Notes for your safety .................................................................................................................... 3
3 Scope of Delivery ......................................................................................................4
4 Planning.....................................................................................................................6
Position of suspension.................................................................................................................. 6
Positioning....................................................................................................................................7
Air supply / Exhaust Requirements ..............................................................................................8
5Legal Requirements ................................................................................................11
6 Operating.................................................................................................................11
Switching on the heater..............................................................................................................11
Switching off the heater..............................................................................................................11
Fault............................................................................................................................................ 11
Maintenance...............................................................................................................................11
7Technical specification ............................................................................................12
Technical data ............................................................................................................................ 14
8 Operating description ..............................................................................................15
9Assembly instructions..............................................................................................16
10Installation instructions...........................................................................................20
Gas-pipe-system and mounting of heaters.................................................................................20
Electrical installation (wiring diagram) ....................................................................................... 22
11Commissioning instructions...................................................................................25
Adjusting nominal thermal load at single-stage operation.......................................................... 25
Adjusting thermal load at two-stage operation...........................................................................26
Adjusting thermal load for modulating operation ........................................................................ 27
12Service guide / Trouble shooting............................................................................28
13Change of gas family...............................................................................................29
14Accessories.............................................................................................................30
Ball guards.................................................................................................................................. 30
Reflector elongation.................................................................................................................... 33
Set angled mounting tubes......................................................................................................... 33
Water protection cover ............................................................................................................... 34
Gas filter - groups.......................................................................................................................35
15 Spare parts..............................................................................................................36
Spare parts infra D / calor D 15-40U ..........................................................................................36
Spare parts burner unit infra D / calor D 15-40U........................................................................ 37
16 AGA Certification.....................................................................................................38
17 EC type examination certificate...............................................................................39
18 EC declaration of conformity ..................................................................................41
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 ▪Benelux ▪Canada ▪Czech Republic ▪France ▪Germany ▪Great Britain ▪Hungary
▪Poland ▪Romania ▪Russia ▪USA ▪Distribution in more than 40 countries worldwide

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Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change
1 Introduction
Thank you for choosing a high efficiency SCHWANK
radiant tube.
Your infraSchwank D / calorSchwank D is a modern
and low-pollution tube heater for economic and
comfortable heating of industrial and commercial
buildings.
The design and operation of the heater are according
to the requirements of the existing standards.
Please read this manual carefully before using the
heater. Please follow carefully all instructions and
warnings. The manufacturer will not be held
responsible for damages resulting from installation
errors or failure to comply with the manufacturer’s
instructions.
Grey marked text shows information to two-stage or
modulating operation for tube heaters
infraSchwank D / calorSchwank D
Follow carefully all warnings in chapter 2 “Your
Safety”.
These tube heaters are constructed exclusively for the
application of large industrial and commercial space
heating. Any other use is not permitted and therefore
Schwank is not liable for any improper use.
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 unit.
After-sales Service
For all installation operations, start-up, gas changes,
etc. always consult a qualified service engineer.
In case of doubt, please contact:
Mr. John Balass
Devex Systems Pty Limited
5/83 Bassett St
Mona Vale NSW 2103
Tel: [phone]
Fax: [phone]
E-mail: [email protected]


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turnaround box turbulator
reflector long tube bar
suspension bracket tube flange packing
burner unit
reflector short
3 Scope of Delivery
Fig 1: Radiant tube infraSchwank D / calorSchwank D 20U
Scope of Delivery
The radiant tube infraSchwank D / calorSchwank D
consists of:
Burner-unit with gas-burner, pre-mixing chamber,
ignition and control unit, firing device, gas
combination valve (single-, two-stage or
modulating), air differential pressure switch,
electrical plug connection and fan
Radiant tubes with turnaround box, flange packing
Corrosion resistant reflector with end cap and
brackets for hanging
(calorSchwank D: isolated reflectors)
Accessories
Control box with on/off switch and indicator lamp
Temperature regulating device
Gas cock (gas connection)
Gas hose connection
Gas filter
Supply air- / exhaust flue-system
Brackets for wall mounting of angled position (15-30°)
for infraSchwank D / calorSchwank D
Flue gas adapter
Ball protection grids (for sport halls)
Reflector elongations
Set for angled mounting
Water protection cover (stainless steel)

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Structure of the burner unit
Fig. 2: Burner unit
1. Controller
2. Air differential pressure switch
3. Fan air restrictor plate
4. Fan
5. Air baffle plate (only 15 / 20 / 30 / 40U)
6. Gas combination valve
(single-, two-stage or modulating)
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 15 / 20 / 30 / 40U)
21. Gasket

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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] c [cm]
infra calor infra calor
15 U 110 20 10 50 15 15
20 U 110 20 10 50 15 15
30 U 130 20 10 50 15 15
40 U 170 25 10 50 25 15
b
[cm] d [cm]
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
not exceed 65°C above ambient.
Do not place articles on or against
this appliance.
Do not use or store flammable
materials near this appliance.
Do not spray aerosols in the
vicinity of this appliance while it is
in operation.
Fig 3: Suspension heights and distances for horizontal
application
Fig 4: Suspension heights and distances for angled
application
Direction of radiation
Radiant tubes infraSchwank D / calorSchwank D 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
MJ/h (type)
Suspension height in m
(max. radiation 200 W/m2)
A = horizontal B = angled (30°)
60 (15U) 3.5m 3.1m
75.9 (20U) 4.0m 3.6m
115.9 (30U) 4.8m 4.3m
155.8 (40U) 5.5m 4.9m

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Positioning
The radiant tube can be mounted with
chains (links min. 4 mm)
adjustable steel cable (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. 8 and 9 on pages 12 and 13.
Attention!
If you do not align the burner unit
correctly the device can be damaged.
Fig 5: Chains and steel cable mounting
Fig 6: Slope of radiant tube heater
SCHWANK GmbH will not accept liability
for damages caused by incorrect mounting
of the burner unit. Correct mounting is the
responsibility of the installer.
wrong
wrong
correct
Correct = vertical or slightly
diagonally outwards
x x
15/20/30U: x=15mm
40U: x=20mm
Wrong = diagonally inwards

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Air supply / Exhaust Requirements
The calculation of air supply / exhaust requirements of
a building heated by radiant tube heaters is subject of
Australia Standard AS 5601. Please follow local by-
laws as well.
Please see the max. lengths of combustion air supply-
and exhaust flue pipe on page 9 (Tab 3, point 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 infraSchwank D / calor SchwankD
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 D)
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 AS 5601 or
please contact Schwank GmbH



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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 the connection 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 flue
4. Exhaust flue with flue collecting system and
central flue fan
(according to EN 777, Type D)
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.
If the radiant tubes will be installed without their
individual flue fans, please note that it could be
necessary to install in the collecting tube behind each
radiant heater a damper or a pressure-balancing
device. This ensures a precise regulation and an even
exhaust flue of each radiant tube.
See technical instruction
infraSchwank D / calorSchwank D with
flue collecting system

Max. length
between heater
and roof/wall
entrance
max. number
of elbows
(90°)
Ø of
air/exhaust flue
6 m 2 100 mm
infraSchwank D/ calorSchwank D, shape U

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Indirect flue into the room with flue gas diverter
Installation with indirect flue into
the room must be mounted with
flue gas diverter to avoid flow
back of flue gas in combustion air
stream.
Note that the flue gas diverter
(code no. 126 7018 0) is mounted
in a position so that the flue gas
is diverted from the burner.
To prevent CO2impingement on
wall when configured as an
indoor flue less appliance a
clearance of 1200mm from the
flue outlet is required.
Fig 7: Flue less appliance with flue gas diverter
flue gas diverter with right
mountin
g
position

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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.
6 Operating
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
Switch on the heater. The main switch is on
the control box. After a pre-purge period of
about 25 sec. the ignition starts.
Switching off the heater
Switch off the heater.
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 radiant tube 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.
Lock release (Reset)
Interrupt the electric power supply for
3 seconds.
Maintenance
Maintenance and servicing of the
appliance must be carried out by
authorised personnel and not less
than once a year.
Servicing of the heater is essential for continued
efficient operation.
After any servicing, the heater must be
recommissioned as detailed in Chapter 12.

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7 Technical
specification
Appliance Automatic heating device, heat transfer
by mean of infrared dark radiation.
Fuel Types Natural gas
Propane
Minimum connection pressure in front of valve
Attention!
Max. connection pressure
Natural Gas: 5.0kPa
Fig 8: Measurements infraSchwank D / calorSchwank D 15U
and 20U (view from below)
Electrical connection
Single phase A.C. 230 V, N, PE - 50Hz (cycles)
(approx. 80 VA)
Power supply for the heater and fan are connected to
the socket of the burner box. To set the burner box
free of voltage, it is only necessary to remove the
plug of the power supply.
The connection cable for the lifting magnet of
2-stage gas combination valve must connect from the
connection box (230 V/50 Hz) to the provided luster
terminal inside of the burner unit.
The connection cable for the lifting magnet of
modulating gas combination valve must connect
direct from the modulation box to the lifting magnet.
The distance between modulation box and burner
unit should be < 1,5m.
Exhaust gas Flue gas pipe connection Ø 100
Connection at exit of tube
Gas connection 15-30U R=1/2’’ male
40U R=3/4’’ male
Type 15-40U
Natural Gas 1.13kPa
LPG 2.75kPa
infraSchwank D / calorSchwank D 15U
(all dimensions in mm)
infraSchwank D / calorSchwank D 20U
(all dimensions in mm)
Detail A / B
Detail A
Cross dimensions at burner unit
15-40U A=80mm
Detail B
Cross dimensions reflector
valid for all types

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Fig 9: Measurements infraSchwank D / calorSchwank D 30U and 40U (view from below)
infraSchwank D / calorSchwank D 30U (all dimensions in mm)
infraSchwank D / calorSchwank D 40U (all dimensions in mm)

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Technical data
for single and two-stage regulation
Gas 15U 20U 30U 40U
Natural gas Gas consumption [MJ/h]
1) single state
Gas consumption [MJ/h]
2-stage/modulating max./min.
Propane Gas consumption [MJ/h]
2) 2-stage/modulating max./min.
Gas consumption [MJ/h]
2-stage/modulating max./min.
Weight infra / calor [kg] 54 / 68 75 / 95 92 / 119 130 / 171
of air/exhaust flue [mm]
Electrical consumption [W]
Electrical protection
Gas connection (male) R3/4“
Electrical supply
Ignition / Control
CE-Identification
AGA Certification no.
113.5 152.6
58.7 - 43.8 74.4 - 56.0 113.5 - 86.1 152.6 - 117.4
155.8
by automatic controller system
CE - 0085 BO 0037
230 V/ 50 Hz ~
Spark ignition and ionisation control
75.9 - 57.2 115.9 - 87.9 155.8 - 119.9
58.7 74,4
R½“
7652
infraSchwank D / calorSchwank D
Ø 100
IP 20
104
59.9 - 44.7
59.9 75.9 115.9
1) Hi,B = 37.8 MJ/m3/ 2) Hi,B = 95.8 MJ/m3
Tab 4: Technical data infraSchwank D / calorSchwank D
1) Hi,B = 37.8 MJ/ m3/ 2) Hi,B = 95.8 MJ/m3 *) IA= inlet angle plate
Tab 5: Function parts burner unit infraSchwank D / calorSchwank D
Gas 15U 20U 30U 40U
Natural gas Burner nozzle [mm] 3.75 4.10 5.35 6.25
1) Fan air restrictor plate D 15 D 20 D 30 D 40
Air baffle plate D 15 D 20 D 30 + spin D 40 U
Burner baffle plate Ø 50 Ø 50 Ø 65 /
Nozzle pressure [kPa] 1-stage 0.87 0.87 0.87 0.87
2-stage 0.87 / 0.6 0.87 / 0.6 0.87 / 0.6 0.87 / 0.6
Start step pressure [kPa] 0.4 0.4 0.4 0.3
MIN MIN MIN MIN
Propane Burner nozzle [mm] 2.30 2.50 3.15 3.60
2
)
Fan air restrictor plate D 15 D 20 D 30 D 40
Air baffle plate D 15 D 20 D 30 + spin D 40 U
Burner baffle plate Ø 50 Ø 50 Ø 65 Ø 65
Nozzle pressure [kPa] 1-stage 2.4 2.4 2.4 2.4
2-stage 2.4 / 1.4 2.4 / 1.4 2.4 / 1.4 2.4 / 1.4
Start step pressure [kPa] 1.2 1.2 1.2 1.2
MAX MAX MAX MAX
infraSchwank D / calorSchwank D
Start step adjustment [°]
Start step adjustment [°]

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

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 unit 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 ignition and control unit within the safety time.
If the ignition process fails, the ignition unit 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 infraSchwank D / calorSchwank D
work 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.
For optimal adaption of heaters´ performance to the
heat demand of the building heaters are offered in
2-stage or modulating operation.
Start and ignition of the heater has always to be in full
load. After a time of minimal 1 minute the heater can be
switched to small step.
.
Fault
If no flame is reported during the pre-purge period
(including 1 repetition of ignition process), the ignition
unit will switch off the radiant tube and will lock it.
Investigation and repair must be carried out by
authorized personnel only. After clearance of the
fault, the interlock can be reset.
The lock release can carried out by an interruption of
the electric power supply for 3 sec. A new start-up
begins. If no flame signal is reported to the ignition and
control unit during operation, the solenoid valve shuts
and stops the gas supply immediately. A new start-up
process is repeated.
Troubleshooting: page 28
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.

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9 Assembly instructions
infraSchwank D / calorSchwank D 15U
Tools you need
• hexagonal wrench or ratchet
(width: 10, 13)
• socket wrench (width: 7 and 8)
Note before mounting
Note the distance measure of suspension brackets.
Flanges are mounted with flange packing
(each 4 screws/washers/lock washers/nuts M8).
Start mounting the heater at the turnaround box
connection.
Turn welding line of the tubes to the side.
Tube with turbulator (with paint mark) has to be
mounted behind the turnaround box (flow direction).
The paint mark showing to the turnaround box!
Tube bars have to be fixed by nuts/lock washers/3D-
washers M8 on the suspension bracket.
First the reflector will be fixed on the U-bend
connection by self-tapping screws. For insulated
reflectors (calorSchwank D) the reflector end with
notch on sides shows to the turnaround box.
The other reflector ending will be shoved under the
clip of the suspension brackets. Reflector and front
plate have to be fixed by self-tapping screws.
Mounting of burner unit with valve on the top.
Fig. 10: Mounting of infraSchwank D / calorSchwank D 15U
(all dimensions in mm)
Indirect flue into the room (Type A3):
Flue gas diverter code no. 126 70180
Note that the flue gas diverter is mounted in a
position so that the flue gas is diverted from the
burner.
Accessory:
Flue gas adapter code no. 126 7035 0
Adapter is mounted at the end of the tube with
gasket.
Flue gas connection (Type B23, C):
version stainless steel:
Note that the flue gas flexible pipe is mounted at the
end of the tube with gasket.

Flue gas diverter

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Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change
Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to changeVersion 004 infra_calor D shape U Australia 43/13 Technical specification subject to change
Assembly
infraSchwank D / calorSchwank D 20U
Tools you need
• hexagonal wrench or ratchet
(width: 10, 13)
• socket wrench (width: 7 and 8)
Note before mounting
Note the distance measures of suspension brackets.
Flanges are mounted with flange packing
(each 4 screws/washers/lock washers/nuts M8).
Start mounting the heater at the turnaround box
connection.
Turn welding line of the tubes to the side.
Tube with turbulator (with paint mark) has to be
mounted behind the turnaround box (flow direction).
The paint mark showing to the turnaround box!
Tube bars have to be fixed by nuts/3D-washers/lock
washers M8 on the suspension brackets.
Start the reflector mounting at the turnaround box
connection with the longest reflector L=3000mm.
Reflector will be fixed on the turnaround box
connection by self-tapping screws. For insulated
reflectors (calorSchwank D) the reflector end with
notch on sides shows to the turnaround box.
The other reflector endings will be shoved under the
clips of the suspension brackets.
The short reflector L=1500mm is mounted at the
front of the heater.
Reflectors will be jointly fixed by 3x M 5 screws and
self-locking nuts.
Reflector and front plate have to be fixed by self-
tapping screws.
Mounting of burner unit with valve on the top.
Fig. 11: Mounting of infraSchwank D / calorSchwank D 20U
(all dimensions in mm)
Indirect flue into the room (Type A3):
Flue gas diverter code no. 126 70180
Note that the flue gas diverter is mounted in a
position so that the flue gas is diverted from the
burner.
Accessory:
Flue gas adapter code no. 126 7035 0
Adapter is mounted at the end of the tube with
gasket.
Flue gas connection (Type B23, C):
version stainless steel:
Note that the flue gas flexible pipe is mounted at the
end of the tube with gasket.

Flue gas diverter

infraSchwank D / calorSchwank D - shape U
18
Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change
Assembly
infraSchwank D / calorSchwank D 30U
Tools you need
• hexagonal wrench or ratchet
(width: 10, 13)
• socket wrench (width: 7 and 8)
hand rivet tool, drill machine,
drill 4.9mm
Note before mounting
Note the distance measures of suspension brackets.
Flanges are mounted with flange packing
(each 4 screws/washers/lock washers/nuts M8).
Start mounting the heater at the turnaround box
connection.
Turn welding line of the tubes to the side.
Tube with turbulator (with paint mark) has to be
mounted behind the turnaround box (flow direction).
The paint mark showing to the turnaround box!
Supporting sleeve for first flange connection:
Insert half of the supporting sleeve into first heater
tube (slot on top). Drill Ø 4.9mm hole through the
tube and sleeve and fix it by rivet. Mount the second
tube and fix the sleeve by the rivet as well. Fix the
rivets always in the opposite position lateral to the
tube. Use only stainless rivets.
Tube bars have to be fixed by nuts / 3D washers / lock
washers M8 on the suspension brackets.
Start the reflector mounting at the turnaround box
connection. Reflector will be fixed on the turnaround
box connection by self-tapping screws. For insulated
reflectors (calorSchwank D) the reflector end with
notch on sides shows to the turnaround box.
The other reflector endings will be shoved under the
clips of the suspension brackets.
Reflectors will be jointly fixed by 3x M 5 screws and
self-locking nuts.
Reflector and front plate have to be fixed by self-
tapping screws.
Mounting of burner unit with valve on the top.
Fig. 12: Mounting of infraSchwank D / calorSchwank D 30U
(all dimensions in mm)
Indirect flue into the room (Type A3):
Flue gas diverter code no. 126 70180
Note that the flue gas diverter is mounted in a
position so that the flue gas is diverted from the
burner.
Accessory:
Flue gas adapter code no. 126 7035 0
Adapter is mounted at the end of the tube with
gasket.
Flue gas connection (Type B23, C):
version stainless steel:
Note that the flue gas flexible pipe is mounted at the
end of the tube with gasket.

Supporting sleeve
4 rivets (stainless steel) 4,8mm
hole to drill 4,9mm
Flue gas diverter

infraSchwank D / calorSchwank D - shape U
19
Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change
Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to changeVersion 004 infra_calor D shape U Australia 43/13 Technical specification subject to change
Assembly
infraSchwank D / calorSchwank D 40U
Tools you need
• hexagonal wrench or ratchet
(width: 10, 13)
• socket wrench (width: 7 and 8)
Note before mounting
Note the distance measures of suspension brackets.
Flanges are mounted with flange packing
(each 4 screws/washers/lock washers/nuts M8).
Start mounting the heater at the turnaround box
connection.
Turn welding line of the tubes to the side.
Tube with turbulator (with paint mark) has to be
mounted behind the turnaround box (flow direction).
The paint mark showing to the turnaround box!
Tube bars have to be fixed by nuts/3D-washers/lock
washers M8 on the suspension brackets.
Start the reflector mounting at the turnaround box
connection. Reflector will be fixed on the turnaround
box connection by self-tapping screws. For insulated
reflectors (calorSchwank D) the reflector end with
notch on sides shows to the turnaround box.
The other reflector endings will be shoved under the
clips of the suspension brackets.
Reflectors will be jointly fixed by 3x M 5 screws and
self-locking nuts.
Reflector and front plate have to be fixed by
self-tapping screws.
Mounting of burner unit with valve on the top.
Fig. 13: Mounting of infraSchwank D / calorSchwank D 40U
(all dimensions in mm)
Indirect flue into the room (Type A3):
Flue gas diverter code no. 126 70180
Note that the flue gas diverter is mounted in a
position so that the flue gas is diverted from the
burner.
Accessory:
Flue gas adapter code no. 126 7035 0
Adapter is mounted at the end of the tube with
gasket.
Flue gas connection (Type B23, C):
version stainless steel:
Note that the flue gas flexible pipe is mounted at the
end of the tube with gasket.


Flue gas diverter

infraSchwank D / calorSchwank D - shape U
20
Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change
10 Installation
instructions
Danger of fire and explosion!
Unprofessional handling of gas pipes,
gas connections and the appliance can
produce gas leaks. It is highly dangerous
if gas is ignited!
Working on gas pipes and the appliances
is only allowed by approved installers.
Mount the flexible connection, so that it
can compensate the longitudinal
expansion of the tube.
Only use flexible connections for the
radiant tube regarding:
• gas
• electricity and
• air (if necessary)
Fig 14: Longitudinal expansion
Gas-pipe-system and mounting of
heaters
All gas installation work must be carried
out only by an authorised person in
accordance with standard AS 5601.
Additional installation notices of national or local
institutions must be observed. The pipe must be
dimensioned in a way that the minimum connection
pressure in front of the gas combination valve of the
individual devices is available at the nominal thermal
load of the entire system, according to table 6.
Please consider the pressure drop of the upstream
mounted gas connection and gas filter. For the detailed
pressure drop value of the Schwank gas-pipe-systems
see table 7.
Minimum connection pressures in front of valve
type
min.
connec-
tion
p
ressure
start step
pressure
[kPa]
single
stage
[kPa]
two stage
max. - min.
[kPa] [kPa]
Propane* 15 - 40U 2.75 2.4 2.4 - 1.4 1.2
* Natural gas: HS,B: 37,8 MJ/m3Propane: HS,B 95.8 MJ/m3
infraSchwank D / calorSchwank D shape U
nozzle pressure
Natural
gas* 15 - 40U 1.13 0.87 0.87 - 0.6 0.4 - 0.5
Tab 6: min. connection pressures with single and two stage
regulation in front of gas combination valve
Pressure drop Schwank gas-pipe-systems
infraSchwank D / calorSchwank D shape U
type gas pipe system pressure drop
[kPa]
Natural
gas 15 - 30U 1/2" / L=800mm 0.2
40U 3/4" / L=800mm 0.25
Propane
15 - 30U 1/2" / L=800mm 0.1
40U 3/4" / L=800mm 0.1
Tab 7: Pressure drop Schwank gas-pipe-systems
The max. connection pressure for
natural gas is 5.0kPa!
In case of contaminated gas pipes and
generally at gas pipes of welded black
steel have to be mounted
gas filter - groups directly in front of the
heater (see page 35).
Flexible final connections to the heater must either
a) hose assembly to AS/NZS 1869 of a suitable size,
temperature and pressure rating or
b) a limited flexibility connector to AS 4631 of a
suitable size.
a
b