Air Liquide WELDLINE WELDRY CW 3 Instructions For Safety, Use And Maintenance

WELDRY CW 3 - CW 6 - CW 9
GB
Re-baking Ovens
ISUM
Instructions for Safety Use and Maintenance
WELDRY CW 3: W 000 120 466
WELDRY CW 6: W 000 120 467
WELDRY CW 9: W 000 120 468
1. GENERAL INFORMATION
This instruction for safety, use and maintenance manual is an integral and essential part of the
product and is supplied together with the oven. It is suggested to read carefully this manual and
observe any stated indication in order to use the equipment correctly. Please take care of this
manual for any further consultation.
Typographic convention
Danger signal which indicates to observe carefully the instructions for avoiding
possible damages to the equipment or accident.
This manual wants to be an instructions and maintenance guide for Re-baking Ovens for
Electrodes model CW3 - CW6 - CW9 which are designed for WELDLINE - Air Liquide Welding:
13 rue d'Epluches - Saint Ouen l'Aumône - 95315 CERGY PONTOISE France
• It must be used and read by the operators, maintenance employees and by the staff and
purchaser for what it concerns spare parts.
• It must be located with care in a known place, protected by dirty and humidity and it
must be always available for consultation by the operators.
• Read it and give to read carefully to all the operators in all parts before proceeding to
install, to use, or for maintenance or dismantling of the oven and/or equipment.
• Check always that the operator has understood very well how to proceed for use and the
safety symbols fitted on the oven.
• Do not damage or remove the labels or the name-plate fitted on the oven.
• It is possible to prevent accidents if the given instructions are respected.
• Before connecting the oven be sure that the name-plate data correspond to the electrical
distribution system ones.
• Do not expose the oven to the inclemency of the weather or install in high humidity
environments, that is bathrooms, etc.
• In case of emergency, that is fire starting, anomalous noise, overheating, etc. disconnect
immediately the system electrical connection.
When this manual has been completely damaged, it is possible to ask for a copy directly to
WELDLINE - Air Liquide Welding: 13 rue d'Epluches - Saint Ouen l'Aumône - 95315 CERGY
PONTOISE France, giving the following references:
• Type of oven and Model
• Serial Number
• Supplier/Reseller
• Name and address of the User
• Correct address where to deliver the copy of the manual.
In case the oven is given to someone else, please inform us of the change in order to
communicate to the new owner the up-to-date information.
This manual respects the state of the art at the moment of sale and it could not be considered
inadequate if it is reviewed due to improvements.
The producer is not obliged to up-to-date the manual and/or the oven of the users if, in the
meantime, due to the evolution of the technology, he has modified and/or improved the
equipment and/or the manual.
2. SPECIFICATIONS
2.1. General specifications
The drying ovens are mainly used for drying and keeping the treatment of welding electrodes to
avoid hydrogen inclusion into the welding puddle during the welding process.
Three basic models are available and the same equipped with fan ventilation (see Table 1).
Table 1 – Available versions
Model Description
WELDRY CW3 Drying and keeping oven with 3 removable trays 4,6 kW 4500 - electrodes ø 3,25 mm
WELDRY CW6 Drying and keeping oven with 6 removable trays 9,1 kW 9000 - electrodes ø 3,25 mm
WELDRY CW9 Drying and keeping oven with 9 removable trays 13,6 kW 13500 - electrodes ø 3,25 mm
On request each model can be supplied with fan ventilation system
www.weldline-alw.com
N° 8695-8916
Creation date: 09/2008 - rev.0
Power Load capacity
2.2. Oven general description
The oven has an external structure made of sheet steel painted with epoxy powder coating to
withstand heavy working conditions as humidity, corrosion and salty atmosphere.
The inner chamber is made of aluminium coated sheet steel for a better thermal reflectance.
The door has a heavy latch system that compresses fiber glass seal against the oven exterior
wall to insure maximum oven efficiency. Two vents are located on top of the oven to release any
moisture present inside the oven on start up.
The oven is equipped with removable trays to hold the electrodes. The quantity of trays in the
oven chamber will depend on the oven size. On the top of the oven a control box is located with
the main switch, the thermoregulators and the signal pilot lamps. On the back of the oven there
is the power supply plug.
2.3. Thermal insulation
Rock wool insulation installed between the external structure and the internal chamber for a
better heat distribution throughout the oven chamber. A door gasket made of glass fiber insures
a minimum amount of heat loss.
2.4. Heating elements
The armoured heating elements, situated below the removable trays in the oven chamber, are
made of stainless steel for longer life. The heating element electrical connections, located in the
back of the oven, are protected by a metal cover. The heating elements in the oven chamber are
supported by a bar. The quantity of heating elements is in accordance with the oven dimension.
2.5. Electrical connections - Consumption
WELDRY CW 3: 3 heating elements - Total nominal power: 4,6 kW
WELDRY CW 6: 6 heating elements - Total nominal power: 9,1 kW
WELDRY CW 9: 9 heating elements - Total nominal power: 13,6 kW
The drying ovens are provided with IEC plug and socket suitable for the power supply type.
2.6. Weight and dimensions
WELDRY CW3
External size (mm) 800 x 880 x 1030
Internal size (mm) 560 x 740 x 560
Oven weight (kg) 140
Packaging size (mm) 820 x 900 x 1050
Weight for transport (kg) 150
3. ASSEMBLING INSTRUCTIONS
The oven is packaged in heavy duty cardboard packaging for shipment. The oven is equipped
with eyebolts so that it can be handled by a lifting device.
Connect the oven electrical cable to the power supply in accordance with all local and national
electrical and safety standards; The working voltage and power rating are listed on a label
located on the oven. The oven is now ready for use.
4. OPERATING INSTRUCTIONS
After checking the connections supply power to the oven, act on the general switch and the zone
selectors; the white pilot lights are now on.
After a self-control phase of 10 seconds, the thermo regulators are on and start doing the
ON/OFF symmetrical adjustment with 5°C hysteresis according to the temperatures and times
set up in advance.
WELDRY CW6 WELDRY CW9
800 x 880 x 1480 800 x 880 x 1880
560 x 740 x 980 560 x 740 x 1430
200 266
820 x 900 x 1500 820 x 900 x 1900
215 280