Instruction Book
9828 0934 73
97
Item
Action
General
Make sure the dryer is protected against overpressure by a safety valve capable of blowing off
the full flow of all compressors. The safety valves must be installed as close as possible to the
dryer without any obstruction in between.
Dryer
•
The unit should be installed on a level floor capable of taking the weight of the dryer.
•
Distances between units and walls stated are minimum.
Ventilation
For air-cooled dryer:
•
Provide free space above the dryer.
•
The inlet grid(s) (1) and ventilation fan (2) (if provided) should be installed in such a
way
that any recirculation of cooling air to the dryer is avoided.
•
The required ventilation to limit the dryer room temperature is:
•
For
QED-650 (
ES 310
)
: 3180 cfm (1500 l/s)
•
For
QPVS-650 (
ES 310 VSD
)
: 3602 cfm (1700 l/s)
•
For
QED-850 (
ES 410
)
: 4660 cfm (2200 l/s)
•
For
QPVS-850 (
ES 410 VSD
)
: 2966 cfm (1400 l/s)
•
For
QED-1050 (
ES 510
)
: 6780 cfm (3200 l/s)
•
For
QPVS-1050 (
ES 510 VSD
)
: 3390 cfm (1600 l/s)
•
The air velocity to the grid(s) has to be limited to 5 m/s (16.5 ft/s).
•
Install the dryer where the ambient air is as clean as possible and where the
temperature
of the air will never exceed the limits: minimum air temperature at the
dryer cooling
opening is 32 ˚F (0 ˚C), maximum air temperature at the dryer cooling
opening 104°F
(40°C) or 115 °F (46 °C) depending on the model.
•
Keep the ventilation gratings of the dryer free. If necessary, take action to avoid external
influences (wind, draughts, etc.) through the ventilation gratings of the dryer, as they may
disturb the cooling air flow.
For the reference of components, see the section
Installation proposal
.
For water-cooled dryer:
•
The inlet grid(s) (1) and ventilation fan (2) (if provided) should be installed in such a
way that natural circulation of air is guaranteed.
•
The minimum air temperature at the dryer cooling opening of 0 ˚C (32 ˚F), maximum air
temperature at the dryer cooling opening is 50 °C (122 °F).
For the reference of components, see the installation proposal for water-cooled
models
in
section
Installation proposal
.
Air
•
Connect the compressed air lines to the marked inlet and outlet pipes of the dryer.
•
Provide an air inlet valve and outlet valve.
•
If a by-pass pipe and valve are installed, the dryer can be serviced while by-passing the
dryer.
Drain pipes
•
Each drain pipe must be individually connected to the waste pipe.
•
Lay out the condensate drain pipes via a funnel towards the waste pipe to allow visual
inspection. The pipes must slope downwards. For draining of pure condensate, install an
oil/water separator; consult your Customer Centre.
•
If the condensate drain pipes have been fitted outside the compressor room where
they may be exposed to freezing temperatures, they must be insulated.
Water cooling
For water-cooled dryers only:
•
Connect the water cooling pipes to the marked inlet and outlet connections.
•
It is recommended to fit a manual shut-off valve and drain in the water inlet and outlet
(customer's installation).
