LST-WP1 Roofing Hot Air Welder
Application
The roofing hot air welder LST-WP1 is of advanced heating technology and large welding pressure. And it is powerful, stable and easy to be operated, which is suitable for PVC, TPO, EPDM, CPE and other polymer waterproofing membrane constructions.
Precautions
Parameter
Please confirm that the machine is turned off and unplugged before disassembling the welding machine, so as not to be injured by live wires or components inside the machine.
The welding machine generates high temperature and high heat, which may cause fire or explosion when used incorrectly, especially when it is close to combustible materials or explosive gas.
Please do not touch the air duct and nozzle(during welding work or when the welding machine has not completely cooled down), and do not face the nozzle to avoid burns.
The power supply voltage must match the rated voltage (230V) marked on the welding machine and be reliably grounded. Connect the welding machine to a socket with a protective ground conductor.
In order to ensure the safety of the operators and the reliable operation of the equipment, the power supply at the construction site must be equipped with a regulated power supply and a leakage protector.
The welding machine must be operated under the correct control of the operator, otherwise it may cause combustion or explosion due to high temperature
It is strictly forbidden to use the welding machine in water or muddy ground, avoid soaking, rain or damp.
| Model | LST-WP1 |
| Voltage | 230V |
| Power | 4200W |
| Welding Temp | 50～620℃ |
| Welding Speed | 1～10m/min |
| Welding Seam | 40mm |
| Machine Size | 555×358×304mm |
| Net Weight | 38 kg |
| Certificate | CE |
| Warranty | 1 Year |
| Model | LST-WP1 |
| Voltage | 230V |
| Power | 4200W |
| Welding Temp | 50～620℃ |
| Welding Speed | 1～10m/min |
| Welding Seam | 40mm |
| Machine Size | 555×358×304mm |
| Net Weight | 38 kg |
| Certificate | CE |
|
Motor
|
Brush-less Air Blower |
| Air Volume | 70-100% Infinitely Adjustable |
| Warranty | 1 Year |
Main Parts
1、Pressure Roller 2、Drive Roller 3、Hot Air Nozzle 4、Hot Airblower Fixed Slider 5、Machine Frame 6、Hot Air Blower Guide Screw 7、Hot Air Blower Fixed Set 8、Hot Air Blower 9、Power Wire Of Hot Air Blower 10、Guide Bar 11、Handle 12、Lift Handle 13、Clump Weight (middle) 14、Clump Weight ( outer) 15、Belt Wheel Fixed Screw 16、Rolling Wheel 17、Round Belt 18、Belt Wheel 19、Belt Wheel Linkage 20、Front Wheel (left) 21、Guide Wheel 22、Fixed Axle Of Guide Wheel 23、Fixed Plate of Guide Wheel 24、Limit Groove Plate Of Guide Wheel 25、Handle Of Guide Wheel 26、Front Wheel (right) 27、Guide Rail Of Hot Air Blower 28、Baffle Of Micro Switch 29、Adjusting Screw 30、Position Handle Of Hot Air Blower
Control Panel
Positioning Before Welding
1.Welding temperature:
Using bottoms 
to set the required temperature. You can set the temperature according to the welding materials and the ambient temperature. LCD display screen will show the setting temperature and the current temperature.
2. Welding speed:
Using bottoms 
to set the required speed according to the welding temperature.
LCD display will show the setting speed and the current speed.
● The machine has a memory function parameters, namely when you use the welder next time, the welder will automatically use the last setting parameters without having to re-set parameters.
1. Depress handle to lift machine, move it to welding position (the edge of upper film should keep in the same alignment with drive roller), as shown in figure 4.
2. Lift guide bar to make front wheel (left) off the ground, slide handle of guide wheel to right side until the right position of limit groove plate of guide wheel, to keep the guide wheel in the same alignment with the edge of upper film.
Welding Nozzle Setting
Nameplate
The model identification and serial number identification are marked on the nameplate of the machine you choose.
Please provide these data when consulting Lesite Sales and Service Center.
Error Code
| Error Code | Description | Measures |
| Error T002 | No thermocouple detected | a.Check thermocouple connection,b.Replace thermocouple |
| Error S002 | No heating element detected | a.Check heating element connection,b.Replace heating element |
| Error T002 | Thermocouple failure in operation | a.Check thermocouple connection,b.Replace thermocouple |
| Error FANerr | Overheating | a.Check hot air blower,b.Clean nozzle and filter |
Boot Steps
Daily Maintenance
① Turn on the machine, and the LCD display screens are shown as above. At this time, the air blower does not heat and is in the state of blowing natural wind.
② Press the buttons Temperature Rise (32) and Temperature Drop (33) at the same time. At this time, the air blower starts to heat up to the setting temperature.
When the current temperature reach the setting temperature, press button Speed.
Rise(34) to set speed. The LCD screens are shown as above.
③ Pull up the Blower Location Handle (30), raise the Hot Air Blower (8), lower the Welding Nozzle (3) to make it close to the lower membrane, move the air blower to the left to insert the welding nozzle into the membranes and make the welding
nozzle in place, At this time, the welding machine automatically walks for welding.
The LCD screens are shown above.
④ Pay attention to the position of the Guide Wheel (21) at all times. If the position deviates, you can touch the Operating Handle (25) to adjust.
Shutdown Steps
After completing the welding work, remove the welding nozzle and return to the initial position, and press the buttons Temperature Rise (32) and Temperature Drop (33) on the control panel at the same time to turn off the heating. At this time,
the hot air blower stops heating and is in cold air standby mode while allowing the welding nozzle to cool down after waiting for the temperature to drop to 60°C, and then turn off the power switch.
Maintenance
· It is strongly recommended to send the product to Lesite company or authorized repair center for professional inspection and repair.
· Only original Lesite spare parts are allowed.
Default Accessories
· Spare 4000w heating element
· Anti-hot plate
· Steel brush
· Slotted screwdriver
· Phillips screwdriver
· Allen wrench (M3, M4, M5, M6)
· Fuse 4A
Quality Assurance
· This product guarantees a 12-month shelf life from the day it is sold to consumers.
We will be responsible for failures caused by material or manufacturing defects. We will repair or replace defective parts at our sole discretion to meet the warranty requirements.
· The quality assurance does not include damage to wearing parts (heating elements, carbon brushes, bearings, etc.), damage or defects caused by improper handling or maintenance, and damage caused by falling products. Irregular use and unauthorized modification should not be covered by the warranty.
