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9

 

  As an added precaution, the following check should be performed before starting the Compressor for the first time:

1. 

Obtain the assistance of an observer and view the Motor cooling fan blades visible through the screened housing at the end of the Motor case 

(FIG 10)

.

2. 

Have the same observer note the directional arrow label on the Motor case 

(FIG 10)

.

3. 

Depress the “START” Button          of the Control Panel.

4. 

If the observer views the cooling fan begin to rotate in the opposite direction of the directional arrow label, depress the “OFF” Button          immediately!

5. 

If 3 phase connection corrections are required, do so and repeat check sequence beginning at step 1.

6. 

If correct rotation of the Motor has been verified, proceed to COMPRESSOR OPERATION.

FIG. 10

FIG. 11

COMPRESSOR OPERATION

•  Depress the “START” Button           of the Control Panel 

(FIG 9

).

•  Allow the Tank pressure to build to 145 PSI [10 bar] before each use. With the Air Compressor turned on, operation is automatic and under the control of 

the internal Pressure Controller. It will turn off @ 145 PSI [10 bar] and automatically restart @ 115 PSI [8 bar].

 

  The Pressure Gauge is visible through the upper right-side Compressor Panel and indicates the actual output line and tank pressure. 

When the pressure reaches the 145 PSI [10 bar] cutoff point, an Unloader Valve will automatically release static pressure in the 
Scroll to allow it to easily restart without needing to overcome residual pressure. This produces a momentary audible “hiss” or 
“burbling” sound and is normal.

Indicator Arrow

Fan rotation

Ground

Black        White          Red

Summary of Contents for 32500

Page 1: ...QST 80 120 SCROLL COMPRESSOR INSTRUCTIONS Item 32500 ...

Page 2: ...reliability and longer life CONTENTS 1 QST 80 120 Scroll Compressor 1 3 4 x 3 3 8 Pipe Nipple 1 Side Panel Key 1 Eastwood Instruction Manual SPECIFICATIONS Power Requirement 208 240V 60Hz 31 0 amp 3 phase Motor Horsepower 11 hp Motor RPM 3516 Sound Reading 10 ft 3m 62 3 db Air Output 31 8 SCFM 90 PSI 900 l min 6 2 bar Cut in Pressure 115 PSI 8 bar Cut out Pressure 145 PSI 10 bar Max Pressure 145 P...

Page 3: ...he compressor is not in use Do not use the unit with the Cover removed Serious injury could occur from contact with moving parts Never direct high pressure airstream to exposed flesh This compressor must be located only on a flat level and secure surface Do not locate the compressor on an elevated platform table bench roof or other non secure location EYE INJURY HAZARD Always wear ANSI Z87 approve...

Page 4: ...phase COMPRESSOR SITE LOCATION The Eastwood Elite QST 80 120 Scroll Compressor must be located in an indoor area on a firm clean level surface A solid level concrete floor is best Select an area with adequate ventilation and air circulation A minimum of 3 90 cm of free space must be maintained around all sides and above the compressor This is to allow for adequate ventilation and panel removal and...

Page 5: ...f the latches FIG 1 Front and rear panels have 2 latches each and are released by turning the key 1 4 of a turn to the respective outside corner End panels have one latch each and are released with 1 4 turn to the right After latch release lift panel off locating pins on the outer floor of the unit then pull up and away FIG 2 The top panel is removed by inserting a 5mm hex key into the holes at th...

Page 6: ...y close tolerances Check that the Cover on the Air Filter is latched correctly and hasn t vibrated loose in shipment The two molded in arrows on the base and lid should be aligned FIG 7 AIR LINE CONNECTION To utilize the maximum performance from the Compressor it is strongly recom mended to use 3 4 or larger air lines and fittings throughout your system The use of 3 8 or smaller lines and fittings...

Page 7: ...mentarily draw several times its full load amperage It is important to consider this start up surge when specifying circuit breakers or fuses If fuses are used time delay type must be installed The voltage variation between the rated input voltage requirements and that of the actual input voltage supply must not exceed 10 If greater variation exists a step up or step down transformer must be insta...

Page 8: ...ton Scrolls Down in Menu Selections E Up Menu Button Scrolls Up in Menu Selections F Selection to Right Button Enables option selection Moves cursor position right G Return Button Exit Menu Page or return to previous setting H Emergency Stop Switch Stops all compressor functions in an emergency J Power ON Indicator Illuminates GREEN when Start Button is ON K Run Indicator Illuminates AMBER when Mo...

Page 9: ...tep 1 6 If correct rotation of the Motor has been verified proceed to COMPRESSOR OPERATION FIG 10 FIG 11 COMPRESSOR OPERATION Depress the START Button of the Control Panel FIG 9 Allow the Tank pressure to build to 145 PSI 10 bar before each use With the Air Compressor turned on operation is automatic and under the control of the internal Pressure Controller It will turn off 145 PSI 10 bar and auto...

Page 10: ...ure at Scroll output may read higher than Gauge Pressure visible at the side of the unit Press 2nd time Displays Scroll Air Temperature FIG 15 Press Again Toggles between Air Pressure and Air Temperature Press Displays RUN PARAMETER FIG 16 Press Again Displays Returns to motor amperage draw for each individual 3 phase leg FIG 12 Press Displays TOTAL RUN TIME FIG 17 Records total overall unit runni...

Page 11: ...isplays PROD DATE FIG 28 Build date of unit Press Displays SERIAL FIG 29 Serial of unit Press Displays C STATE RX TX FIG 30 This is a manufacturer only check point setting used for calibration purposes Pressing beyond the RUN PARAMETERS display will reveal three additional Menus USE PARAMETERS FAC PARAMETERS and MOD PARAMETERS Pressing will produce a prompt in the Display Window that requests a Pa...

Page 12: ... for a short period At this point all work demands of the Compressor should be stopped immediately and the Compressor housing should be checked for blockage of cooling air side vent panels or blockage of the Fan Air Outlet on top The Fan should be allowed to continue to run until the oil sufficiently cools This will automatically cancel the Oil Over Temperature LCD Screen Warning however the audib...

Page 13: ...parator Oil Reservoir FF Oil Drain Valve GG Oil Level Sight Gauge HH Oil Fill Port JJ Air Pressure Gauge KK Oil Temperature Sensor LL Pressure Safety Release Valve MM Pressure Sensor NN Compressed Air Outlet Port PP Pressure Switch QQ Oil Heat Exchanger RR Oil Filter SS Microprocessor Control Panel TT Electrical Cabinet UU Air Inlet Air Filter Housing FIG 32 AA BB CC DD EE FF GG HH KK LL MM NN PP ...

Page 14: ...GS 33 34 a FU1 FU2 FU3 Motor Fan Fuses Upper Motor Connections Lower Fan Connections b QF1 Fan Pressure Switch c QF2 Unloading Valve Pressure Switch d KMF Fan Contactor e KM1 Motor Contactor f Transformer 24v 220V g Current Transformer Phase Meter h Upper Terminals j Ground lug FIG 33 FIG 34 a b c d e g j h f ...

Page 15: ...ture daily Failure to do causes internal tank corrosion perforation and ultimate failure The following is the moisture draining procedure for the optionally available Eastwood 32501 80 Gallon Vertical Tank other tanks supplied by customer may vary in detail 1 Press the OFF Button and shut off main power 2 Release all pressure from the Tank until the Tank Pressure Gauge reads less than 20 PSI 3 Slo...

Page 16: ... the Oil Fill Plug from the upper side of the Oil Reservoir with a 22mm wrench not included FIG 35 4 Unroll the transparent Oil Drain Tube and place the open end into a suitable container FIG 36 5 Open the Oil Drain Ball Valve by rotating the handle 1 4 turn Counter Clockwise 6 Allow oil to drain into vessel 7 Close Oil Drain Ball Valve by rotating the handle 1 4 turn Clockwise 8 Add 74 oz 2 2 lit...

Page 17: ...8 Replace Oil Fill Plug and tighten securely 9 Restore power to Compressor Depress the START Button run Compressor and check for leaks 10 Press the OFF Button and replace all panels AIR FILTER CHANGE 1 Grasp the sides of the plastic Air Filter Housing located at the top of the Scroll Air Intake Manifold and rotate 1 8 turn Counter Clockwise as viewed form filter housing FIG 38 2 Remove Air Filter ...

Page 18: ...il line compression fitting at the 90 elbow attached to the Head Plate with a 14mm line wrench not included FIG 43 8 Detach the oil outflow line leading from the center of the Head Plate with a 14mm line wrench not included FIG 43 9 Remove Head Plate using an 18mm wrench FIG 43 NOTE If the Head Plate is stuck to the Cylinder two of the Head Plate Bolts may be threaded into the two threaded jacking...

Page 19: ... line fitting 4 Reconnect the oil line compression fitting at the 90 elbow attached to the Head NOTE Use caution not to cross thread the compression nut on the stationary line fitting 5 Thread in the remaining 6 Head Plate Bolts 6 Torque Head Plate bolts initially to 30 lb ft 40 7Nm then to 62 lb ft 84 3Nm NOTE Follow Head Plate torquing sequence as shown in FIG 46 7 Replace Check Valve housing FI...

Page 20: ...Power 3 Phase input voltage too low Determine the cause of low input voltage condition or consult a licensed electrician for diagnosis Compressor being operated in exces sively low under 32 F 0 C ambient temperature conditions Do not operate Compressor until ambient temperature conditions are favorable Compressor Runs Constantly Excessive air supply demand Do not exceed 32 SCFM 90 PSI 906 l min 6 ...

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