Parker -W4P, User Manual

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MSC4000 - MSC15000 USER MANUAL
CAUTION
CAUTION
Drain Line Y-Strainer
The drain line y-strainer should be cleaned weekly. Air flow and air pressure should be removed from system
before proceeding. To clean the y-strainer:
• Ensure that air pressure is removed from the machine!!
• Turn the ball valve on the strainer assembly to the closed position
• Remove threaded cap at the end of the ball valve assembly.
• Clean the screen inside of the cap by rinsing it under water.
• Reinstall the screen and cap
• Return the ball valve to the open position
Condenser (Water Cooled Units)
The water cooled condenser should be checked and cleaned annually if necessary. To check the condenser, water
flow to the condenser should be shut off, air flow to the machine should be shut off, and the unit should be taken out
of a run mode. The end bonnets then need to be removed exposing the tube side of the condenser. The tube side
should be inspected for any debris and cleaned. If soft deposits are found they can be cleaned using a pneumatic
tube cleaning gun which forces plugs down the tubes. Some have a brush between two rubber plugs and others are
specially designed plugs which scrape the tube walls as they travel down the tube. If scale is found special equipment
is required to clean the tubes. These cleaning systems utilize a flexible shaft which rotates a brush as it is fed down
the tube, they can also simultaneously flush out the tubes with water. There is a wide variety of brushes and tools
available that attach to the shaft to clean both soft and hard deposits.
High Pressure, Low Pressure, & Fan Control (AC units only)
The refrigeration pressure switches should be checked monthly to ensure that they are adjusted to the proper settings.
Please refer to the applicable electrical drawings for your unit.
Compressor Oil Level
The oil level in the compressor should be checked weekly. The refrigeration system should never need oil unless the
system is leaking or has been recently repaired. If it is determined that the system needs oil, do the following:
• Run the dryer for a minimum of 2 minutes, if there is not a visible level of oil in the sight glass, proceed to the next
step, if there is a visible level DO NOT add oil to the system.
• Using the appropriate oil pump add the proper oil (EMKARATE RL 32-3MAF, 150 SUS (ISO 32) (or equal) synthetic
POE refrigeration oil for machines with R404 or R134a refrigerant) using the Schrader valve on the suction side
of the compressor.
• Add oil until there is a visible level in the sight glass with the compressor running.
Drain Solenoid
The drain solenoid should be cleaned monthly or more often if needed.
Remove air flow and pressure from the dryer prior to proceeding.