Ingersoll-Rand 80445364 manual Maintenance

MAINTENANCE 35

COOLER CLEANING PROCEDURE

1. Stop the machine, electrically isolate and vent all trapped pressure.

2. Remove the rear cover to obtain access to the cooler.

3.Clean the cooler, blowing debris outward away from unit.

4.Rebuild in reverse order.

SETTING THE PRESSURE TRANSDUCER (PT)

TO CHECK THE MAXIMUM DISCHARGE PRESSURE (Pressure transducer upper trip point)

Slowly close the isolation valve located adjacent to the compressor. Observe the rise in pressure and ensure that the pressure transducer opens at the correct Maximum discharge pressure.

ELECTRIC DRAIN VALVE

The maximum discharge pressure is shown on the machine data plate.

DO NOT exceed these ￿gures.

The compressor will stop once the system pressure rises to this pressure.

TO CHECK THE TARGET PRESSURE

Observe the line pressure fall and note the point at which the pressure transducer closes (and starts the compressor).

TO ADJUST THE TARGET PRESSURE

Remove the airend enclosure panel and locate the POT. Turn the POT adjuster knob clockwise to increase the set point or anti −clockwise to decrease it.

TO CONVERT UNIT FROM VARIABLE SPEED MODE TO FIXED SPEED MODE.

Remove the airend enclosure panel and locate the toggle switch. Since the switch is a 2 −position , simply toggle between position to vary the mode.

PRODUCT DESCRIPTION

The Electric Drain Valve removes condensed water and oil from the air receiver tank. Additional drains may be installed throughout your compressed air system, including aftercoolers, ￿lters, drip legs and dryers.

The Electric Drain Valve operates on a timer which can be set to automatically drain the air receiver tank at operator −determined intervals.

Key features include:

•100% continuous duty

•NEMA 4 (IP 55) enclosure

•	Adjustable time on (0.5	− 10 seconds)
•	Adjustable time o￿ (0.5	− 45 minutes)

•Stainless steel operator

•LED to indicate electrical power is on

•LED to indicate valve is open

•Manual override

OPERATION

1. Open the strainer ball valve.

Strainer Ball Valve.

OPENCLOSED

TIMER SETTINGS

The “time o￿” setting determines the interval between cycles from 30 seconds to 45 minutes. The “time on” setting determines the actual time the compressor drains condensate.

The timer’s cycle rate and drain opening time should be adjusted to open just long enough to discharge the condensate. The timer is properly set when it opens and discharges condensate and then vents air for approximately one second before closing. Adjustments may be made depending on many factors, including humidity and duty cycle.

AIR FILTER MAINTENANCE

In order to ensure optimum compressed air quality the ￿lter element should be replaced as follows. (Used ￿lter elements must be disposed of in accordance with local regulations.)

Use only genuine Ingersoll Rand replacement elements.

2.Set the “time o￿” and “time on” knobs. See TIMER SETTINGS (below) for an explanation of the settings.

3.During compressor operation, check for air leaks.

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