Leister LHS CLASSIC 20S User manual

Leister LHS CLASSIC
Air Heater
1
Please read operating instructions carefully before use and
keep for further reference.
GB
OPERATING INSTRUCTIONS
The Leister Air Heater type LHS CLASSIC are suitable for building into machines,
installations or appliances and are designed for continuous operation.
• Drying and heating processes of various types.
• Shrinking and welding packaging films and moulded parts.
• Heating conveyor ovens or heat tunnels.
• Activating and loosening solvent free adhesives and melt adhesives.
• Sterilizing packaging materials such as bottles, corks and containers.
• Separating and fusing synthethic fibres and fabrics.
• Soldering processes on thin metal parts.
• Speeding up mixing processes and dissolving foams which can arise during
mixing and filling operations.
• Welding thermoplastic materials.
• Removing plastic mould flash.
•Putting a shine on plastic surfaces.
APPLICATION
Leister Process Technologies, Riedstrasse, CH-6060 Sarnen/Switzerland
Tel. [phone] Fax [phone] www.leister.com [email protected]
®
LHS CLASSIC 20S
LHS CLASSIC 20L
LHS CLASSIC 40S
LHS CLASSIC 40L
LHS CLASSIC 60S
LHS CLASSIC 60L

Technical Data LHS LHS LHS LHS LHS
CLASSIC 20S CLASSIC 40S CLASSIC 40L CLASSIC 60S CLASSIC 60L
Voltage V~ 100 - 230 100 - 230 3×230-3×440 3×230-3×480 3×230-3×480
Frequency Hz 50/60 50/60 50/60 50/60 50/60
Power consumption kW 1.0 / 2.0 2.0 / 4.0 2.0 / 4.0 4.0 / 6.0 8.0 - 16.0
Min. air flow l/min. 200 300 300 400 600
Max. temperature°C 600 600 600 600 600
Ambient °C <65 <65 <65 <65 <65
temperature
Weight kg 0.55 0.85 0.95 3.15 3.65
Size mm 252×97×87 261×112×98 291×112×98 379×116×137 379×116×137
Mark of conformity
2222 2
Mark of Approval 3333 3
Certification scheme CCA CCA CCA CCA CCA
Protection class I
11
Protection class II 444
2
Danger! When opening up the tool, live components and
connections are exposed. The mains plug must be removed
from the main socket before opening up the tool. Caution
separate source voltage.
Incorrect installation and use of air heaters can present
afire and explosion hazard, particularly in the proximity of
flammable materials and explosive gases.
Do not touch the element housing and nozzle when hot
as they can cause burns. Do not point the hot air flow at
people or animals.
WARNING
The tool must be operated with supervision. Warmth can
reach combustible materials, which are out of sight.
The voltage rating stated on the tool should correspond
to the mains voltage.
IEC/EN 61000-3-11; Zmax = 0.047
Ω + j 0.029 Ω . If necessary,
consultate supply authority.
Protect the tool from dampness and wet.
CAUTION
The tool with protection class I should be earthed using a
protective conductor.
100
480

OPERATING Leister LHS CLASSIC
3
Installation
• When installing the tool, ensure that:
- only cold air is supplied
- no (hot air) back pressure develops
- the tool is not subjected to a hot air flow from another tool
• The tool is protected against mechanical vibration and shaking.
• Installation dimensions on pages 5, 6 and 7.
Air supply
• To protect the tool and the heat element, the stipulated minimum air flow must
under no circumstances fall short, and the maximum temperature (measured
at the hotest point 3 mm in front of the element housing) must also not be
exceeded. In the event that the minimum air flow falls short, the power must
immediately be disconnected.
• The air heater should only be supplied with air up to a max. 80°C.
• Pay attention to the direction of the airflow.
• Leister blowers must be used for the air supply (pay attention to the direction of
rotation and the electrical connection).
• For use in a dusty environment the tool should be fitted with a Leister stainless
steel filter on the air intake connection. Where a particularly critical dust problem
exists (eg metal, electrically charged or damp dust) special filters must be used to
avoid short circuiting of the tool.
Operation
• The tool must be connected by a qualified electrician in accordance with the
circuit diagram (Pages 5,6 or 7).
• Fit a nozzle appropriate to the use.
• It should be checked that the hot air can flow out freely, otherwise a back
pressure of hot air may damage the tool (danger of fire!).
• Attention: Keep to the minimum air flow according to the technical details
(Page 2).
• Switch on mains.
• Allow the tool to cool down after use.
Attention: Never operate tool without air supply!

4
OPERATING Leister LHS CLASSIC
TOOL DESCRIPTION Leister LHS CLASSIC
Function: Heat element protection
If the heating element overheats, the alarm relay contact will open.
Function: Tool protection
If the tool overheats (air supply too warm or back pressure of hot air) the operating
contact of the alarm relay will open.
Measures to be taken if the heating element or tool protection cuts out
• Remove electronic control from the mains. After 10 seconds the electronics reset
automatically.
• Check air supply.
• Check air volume.
• Check air flow.
• Re-connect tool to the mains.
3
5
2
1
1
4
3
5
2
1
4
3
5
2
14
LHS CLASSIC 20
LHS CLASSIC 40 LHS CLASSIC 60
1. Screw type cable fitting
2. Air intake connection
3. Flange housing
4. Fitting plate
5. Element housing
1
1

5
CONNECTION/INSTALLATION Leister LHS CLASSIC 20
Installation dimensions in mm
F2
Fuse
P
N
F1
Max 10A
L
N
COM
NO
230V
0V
24V
N
L1
Insulation
K1
K1
Circuit Diagram
20S

CONNECTION/INSTALLATION Leister LHS CLASSIC 40
6
Installation dimensions in mm
COM
NO
230V
0V
24V
F2
Fuse
P
N
F1
Max 10A
L1
N
Insulation
K1
K1
L3
L2
L1
L2
L3
N
L1
COM
NO
230V
0V
24V
F2
Fuse
P
N
F1
Max 10A
L
N
Insulation
K1
K1
Circuit Diagram
40S
40L

CONNECTION/INSTALLATION Leister LHS CLASSIC 60
7
Installation dimensions in mm
L3
L2
L1
COM
NO
230V
0V
24V
D0
D1
‡
F2
Fuse
P
N
F1
Max 10A
L1
N
K1
K1
L2
L3
Insulation
PE
Circuit Diagram
60S / 60L

BA LHS CLASSIC / 10.2004/08.07
Leister Process Technologies, Riedstrasse, CH-6060 Sarnen/Switzerland
Tel. [phone] Fax [phone] www.leister.com [email protected]
Leister Process Technologies and its authorised Service Centres offer free of charge
courses in the range of applications on page 1.
• Only Leister accessories should be used.
• Let the tool cool down before changing the nozzle or reflector.
• Repairs should only be carried out by authorised Leister Service Centres. They
guarantee a correct and reliable repair service within 24 hours using original
spare parts in accordance with the circuit diagrams and spare parts lists.
• For this tool, we generally provide a warranty of one (1) year from the date of
purchase (verified by invoice or delivery document). Damage that has occurred
will be corrected by replacement or repair. Heating elements are excluded from
this warranty.
• Additional claims shall be excluded, subject to statutory regulations.
• Damage caused by normal wear, overloading or improper handling is excluded
from the guarantee.
• Guarantee claims will be rejected for tools that have been altered or changed by
the purchaser.
Technical data and specifications are subject to change without prior notice.
Your authorized Service Centre is:
WARRANTY
SERVICE AND REPAIR
ACCESSORIES
TRAINING
®