Operation And Maintenance - Parker Hiross Hypercool WFN Benutzerhandbuch

i) If operating temperature exceeds 60°C, fit any protective
guards necessary to prevent accidental contact and burns.
RESPECT THE DIRECTION OF THE AIR/WATER INLET AND OUT-
LET LABELS.
AIR/GAS CONNECTIONS: Attach the compressed air piping to the
threaded / flanged connections on the apparatus (if non-standard
flanges are used, ensure that their internal diameter allows a free
air passage to all the aftercooler's tubes).
The apparatus must be installed immediately down-streamof the
compressor, and with the separator down-stream of the aftercool-
er.
WATER CONNECTIONS: Attach the cooling water piping to the af-
tercooler's threaded/flanged connections.
Ensure the following:
• The water inlet must always be below the water outlet (to maxi-
mize performance and allow water to drain out when idle).
• The water must drain away freely (to prevent water entering
the compressed air tubing in the event of a fracture).
• For closed water circuits, ask for separate instructions and in-
stall a safety valve (set at a pressure below the maximum safe
pressure of the weakest point in the circuit).
• Guarantee a constant water flow and install a water flow detec-
tor (eg. visible discharge to drain, sight glass, etc.) or an auto-
matic compressor shut-down device.

5. Operation and maintenance

Maintenance must only be performed by specialist personnel.
FOR SEPARATOR SEE RESPECTIVE MANUAL.
The temperature of incoming fluids, must never exceed the maxi-
mum value specified on the data plate. If temperatures exceed the
specified values, contact the manufacturer for further information.
Avoid subjecting the unit to thermal stress caused by repeated
fluctuations in incoming fluid temperature.
To guarantee optimum operation, ensure that the maintenance
program below is performed regularly, and that the following rules
are respected:
• Ensure a constant water flow.
• Respect the fluid temperatures specified at the time of pur-
chase of the unit; if this is not possible, contact the manufacturer
for further information.
• Avoid rapid scaling by keeping thewater outlet temperature as
low as possible.
• Drain all water out of the aftercooler when it is not in operation
(to prevent ice formation).
Maintenance program
AIR/GAS CIRCUIT
frequency: Every 1000-8000 hours of operation, depending on
air quality and compressor type.
operation: Remove the carbon, tars and dust, formed on the in-
sides of the aftercooler's tubes, using suitable solvents. After-
wards thoroughly dry the insides of the tubes using compressed
air.
Check for signs of corrosion, in which case contact the author-
ised inspector or the supplier for authorisation to continue using
the unit.
WATER CIRCUIT
2
frequency: After 1000-1200 hours of operation, and thereafter
as appropriate according to the degree of encrustation (ie. the
water hardness and temperature).
operation: Connect a pump to the aftercooler's water inlet and
outlet and then clean the circuit by pumping through a chemical
descaler. Afterwards rinse by pumping through with water.
ALWAYS CLEANINTHEOPPOSITEDIRECTION TO THE COOLING
WATER FLOW.
NOTE: It is advised to stock a spare set of gaskets.
WFN English