INSTR: 15324 REV: ECO-10003 2014-11-06 / TB GODK: SID: 2 / 24
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PURPOSE OF THE MACHINE
The unit is intended to clean air-driven spray-guns using either thinner-based solvents or water-based solvents.
PLACING THE UNIT
The DRESTER QR-20 is equipment Category 2 (ref. ATEX-directive 94/9 EC) and may therefore be placed in locations
classified as Zone 1 (ref. ATEX-directive 1999/92 EC). If the DRESTER QR-20 is installed in locations classified as Zone 2 (or
in unclassified locations), the space within 1 m of the DRESTER QR-20 is to be classified as Zone 2, and the inside of the ducting
as Zone 1. Within this area, all equipment such as electrical items must be approved for the Zones described. Equipment that
generates naked flames or sparks (e.g. welding or grinding equipment) may not be used in this area. Smoking is not permitted. If
in any doubt, contact the local fire service authorities for advice.
ASSEMBLY & INSTALLATION
Assembly
Assemble, install and prepare the unit for use it by following the enclosed sequence of pictures 15367.
Ventilation
There are three different options for the unit’s ventilation. For all three options, it must be ensured that the speed of the air flow
over the opening of the cleaning box is at least 0.5 m/s (this corresponds to a ventilation volume of 250 m
3
/h 160 cfm). The
ventilation must be connected in such a way that ensures the grounding of all parts.
Option 1:
Connect the extraction hood to a metal ducting, which is in turn connected to a ventilation system approved for Zone 1.
The ventilation volume must be at least 250 m
3
/h (160 cfm).
Option 2:
Fit an air-driven DRESTER AIRVENT 15140 to the hood and connect this to a metal ducting. This ducting can either
lead outdoors or be connected to a ventilation system approved for Zone 1. The ducting must have a smooth inner surface, may
not be longer than 15 metres and shall be installed so that it is as straight as possible.
Option 3:
Connect the hood to an electric ventilator of a kind like DRESTER MINIVENT 2055 via a metal ducting. The exhaust
from the ventilator must be led outdoors.
Compressed air
The unit must be connected to compressed air of 5-12 bar (80-180 psi). When in use, the unit consumes 100 litres/min (4 cfm) of
air. The compressed air supplied to the unit must be clean and dry. If it is not first led through a water trap and filter, it may cause
damage to the pneumatic components of the unit, which will invalidate any warranty claims.
Grounding
Make sure that the unit is properly grounded.
Instructions for use
Operating instructions should be formulated on the basis of this manual and translated into the language spoken by the employees.
It should always be available close to the machine.
PERMITTED SOLVENTS
The unit is designed for cleaning with water, or water-based solvents intended for the cleaning of spray-guns that have been used
for painting with water-based paint systems.
The unit is also designed for cleaning with solvents and solvent mixtures for spray-gun cleaning, such as acetone, toluene,
isobutanol (2-methylpropan-1-ol) that are listed as Group IIA according to IEC 79-20 (EN 60079-20).
OPERATING INSTRUCTIONS
Follow the sequence of pictures at the end of this manual.
