Ventilation And Extraction (Technical Ventilation); Ventilation For Heat Removal In Normal Operation; Technical Ventilation When Loading And Unloading Charging Material And Emptying The Condensate Catchpot Of The Pump - Binder VDL Series Operating Manual

Electrical connection
To completely separate the chamber from the power supply, you must disconnect the power plug. Install
the chamber in a way that the power plug is easily accessible and can be easily pulled in case of danger.
It as also possible to use a customer's explosion-protected emergency stop switch.
The chamber plug (power plug) is unprotected because it must be disconnected in case of an emergency
to completely separate the chamber from the power supply. therefore the electrical connection must be
established outside a zone.
Explosion hazard due to sparking when disconnecting an improper electrical
connection.
Serious injury or death from burns and / or explosion pressure.
 Make sure that the electrical connection is located outside a zone t.
 Connect the plug outside the installation area of the VDL and the pump. Take into ac-
count the information on zone classification (chap. 3.6.2)
For the user there is no risk of temporary overvoltages in the sense of EN 61010-1:2010.
5.2

Ventilation and extraction (technical ventilation)

5.2.1

Ventilation for heat removal in normal operation

Install the vacuum drying oven in a well-ventilated place.
Danger of overheating due to lack of ventilation.
Damage to the chamber.
 Do NOT set up chambers in non-ventilated recesses.
 Ensure sufficient ventilation for dispersal of the heat.
 Observe the prescribed minimum distances when installing the chamber (chap. 5.1)
5.2.2 Technical ventilation when loading and unloading charging material and
emptying the condensate catchpot of the pump
The operator shall provide adequate ventilation of the loading area in front of the chamber before starting
up the chamber. Loading and unloading of the loading material take place under technical ventilation
(extraction) in the security area in front of the chamber.
Provide active extraction at the location of installation. The extraction shall be provided as technical venti-
lation according to country-specific regulations (TRBS 2152 Part 2 for Germany). It must include the enti-
re installation area of the device. In addition, extraction must be provided on the floor behind the VDL.
In normal operation, it affects in particular the loading area of the chamber for the spatial limitation and
reduction of any possible explosive atmosphere when loading the chamber. An additional suction system
shall be provided behind the chamber so that, even in the event of a fault (e.g. if the material to be loaded
or the filled condensate catchpot of the pump falls down), no explosive atmosphere can reach the unpro-
tected areas of the device.
Suction must be active at least during loading and unloading of the material to be dried and when hand-
ling the condensate catchpot of the pump. Extraction must lead into an explosion-proof area.
VDL (E3) 09/2019
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NOTICE
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