Powerex SED1007E, SED1007EHP, SET1507E, SET1507EHP, SEQ2007E User Manual
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10 HP to 20 HP Scroll Enclosure Air Compressors
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described.
Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or
property damage! Retain instructions for future reference.
DESCRIPTION
GENERAL
Powerex Scroll Enclosure Air Compressors are designed to
supply continuous oil-free air by using the most advanced
scroll technology. These turn-key packages are extremely quiet
and offer electronic control that will reduce electrical power
consumption.
The Powerex Oil-less Rotary Scroll Air Compressor has
advanced scroll compressor technology through the
development of a completely oil-less unit. The Powerex Scroll
Compressor offers a dynamically balanced air end which
insures vibration-free operation. The rotary design permits a
continuous 100% duty cycle. No oil separation, oil filtration,
or inlet valves are required on the Powerex Scroll unit. The
compressor is virtually maintenance free.
The Powerex Oil-less Rotary Scroll Air Compressor is based
on the theory of scroll compression. A scroll is a free standing,
intricate spiral bounded on one side by a solid, flat plane or
base. A scroll set, the basic compression element of a scroll
compressor, is made up of two identical spirals which form
right and left hand parts. One of these scroll components is
indexed or phased 180° with respect to the other so the scrolls
can mesh. Crescent-shaped gas pockets are formed and
bounded by the spirals and the base plate of both scrolls. As
the moving scroll is orbited around the fixed scroll, the pockets
formed by the meshed scrolls follow the spiral toward the
center and diminish in size. The moving scroll is prevented
from rotating during this process so the 180° phase
relationship of the scrolls is maintained. The compressor’s
inlet is at the outer boundary of the scrolls. The entering gas is
trapped in two completely opposite gas pockets and
compressed as the pockets move toward the center. The
compressed gas is discharged through the outlet at the center
of the fixed scroll so no valves are needed.
SPECIFICATIONS
Product SE Series Enclosed Scroll Air
Compressor
Lubrication Grease-filled Bearing
Operating
Voltages
Compression
Cycle
Motor Overload
Protection
Pressure Settings Cut in: 90 psig Cut out: 116 psig
Overpressure
Protection
Drive 3V Belt
Agency Approvals UL/CSA Certified
3Ø - 208-230/460/575 Volts, 60 Hz
Scroll
Motor Protector/Circuit Breaker
Cut in: 119 psig Cut out: 145 psig
(High Pressure Units)
Safety Valve Factory Set and Sealed
Powerex - 150 Production Drive - Harrison, Ohio 45030 - USA
1-888-769-7979 - www.powerexinc.com
IN563601AV
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09/12
10HP - 20HP Scroll Enclosure Air Compressors
TROUBLESHOOTING GUIDE
Problem Possible Cause Corrective Action
No Display on the
Operating Panel
Compressor does not operate
It does not operate
despite displays
Alarm Screen
Active
Alarm Screen
High Temperature
Compressor starts but then stops
1. The electric source is not turned on
2. Transformer primary or secondary fuse open
3. Electric source is not correctly connected
4. Failure of display or PLC
1. Failure or wiring failure of magnetic starter
2. Motor failure
3. Low voltage
1. High temperature condition
2. Motor Overload condition
3. High temperature indicated but unit is cool,
has never been hot
1. High ambient temperature or bad ventilation
2. Clogging of aftercooler fins or intake wire
screen
3. Failure of ventilating fan
4. Damage to intake hose
5. Cooling passage of air end clogged
6. High exhaust pressure
1. Turn on electric source
2. Replace
3. Connect correctly
4. Inspect, repair or replace
1. Inspect, repair or replace
2. Inspect, repair or replace
3. Check electric source capacity and the size of
electric source cable and change to proper one
1.Allow to cool and reset, determine cause
2. Reset motor overload, reset alarm and
determine root cause of overload
3. A temperature switch may be disconnected or
defective, check wiring
1.Improve installation environment & ventilation
2. Clean
3. Replace
4. Replace
5. Inspect and clean
6. Inspect– control malfunction likely
Alarm Screen
Motor Overload
Exhaust pressure
does not increase
Safety valve
activates
Abnormal sound 1. Air-end rotates backward
1. Low voltage
2. Motor Failure
3. Air end failure
4. Loosened wiring screw
5. High exhaust pressure
6. Failure of thermal overload
1. Air leaks from exhaust piping
2. Air-end rotates backward
3. Wrong pressure setting
4. Clogged intake filter
1. Failure of safety valve
2. Failure of pressure setting
2. Air end failure
3. Belt slips
4. Motor failure
5. Cooling fan contacting frame
6. Loosened bolts
1. Check electric source capacity, size of electric
source cable and change to proper one
2. Inspect, repair or replace
3. Inspect, repair or replace
4. Tighten
5. Inspect - control failure likely
6. Replace
1. Inspect, repair
2. Change phases
3. Readjust
4. Clean or replace
1. Replace
2. Inspect - control failure likely
1. Change phases
2. Inspect, repair or replace
3. Check tension and readjust
4. Inspect, repair or replace
5. Inspect and repair
6. Inspect and tighten
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10HP - 20HP Scroll Enclosure Air Compressors
MAINTANANCE SCHEDULE
Item Action Needed Operating Hours
500 2500 5000 10,000 20,000 Remarks
Intake Filter Replace Every 2500 hours or less
Ventilation Screen Clean Every 500 hours or less
Air End/Blower Fan Clean Every 5000 hours or less
Fan Duct Clean Every 5000 hours or less
Compressor Fins Clean Every 2500 hours or less
Compressor Grease Use genuine Powerex grease
Tip Seal Replace (every 5000 hours for High
Dust Seal Inspect, Replace (every 5000 hours for High
V-belt Inspect, Replace * *Readjust
Replace Pump
(every 5000 hours for High
Pressure Models)
Pressure Models)
Pressure Models)
Pressure Sensor Confirm
Operation
Magnetic Starter Inspect Replace if contact points are
Check Valve Inspect Confirm operation by watching pump
Safety Valve Confirm
Operation
Ventilation Fan Inspect Confirm ventilation air is exiting
Motor Pulley Inspect Groove/
Make sure tight
on shaft
Motor Inspect Replace if abnormal noise is
Intake Hose Inspect Replace if damaged or deteriorating
Braided Hose Inspect, Replace Make sure there are no leaks
Aftercooler Clean outside Every 5000 hours or less
Operating Panel Inspect monitor
daily
Piping Inspect for leaks Every 2500 hours or less
Check touchscreen for pressure rise
and fall
deteriorated/excessive arching
and motor shut off and stop turning
Every 500 hours or less. Pull ring to
make sure not stuck or plugged.
Replace if abnormal wear is detected
detected./ Make sure electrical
connections are secure.
Verify pressure/Check for alarm
notification
Inspect
Replace
NOTES:
1. Inspect and perform maintenance periodically according to the maintenance schedule.
2. The maintenance schedule relates to the normal operating conditions. If the circumstances and load condition are adverse,
shorten the cycle time and perform maintenance accordingly.
3. *Marked “Readjust” means the tension of the V-belt should be adjusted during the initial stage and inspected every 2,500
hours afterwards.
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10HP - 20HP Scroll Enclosure Air Compressors
SCHEDULED MAINTENANCE
Per OSHA regulations, lockout
compressor system from all power sources BEFORE
performing any maintenance.
MAINTENANCE INDICATORS
The PUMP MAINT indicator will activate when the running
hours of any pump accumulates to a required maintenance
interval. The system is designed for multiple pumps to accumulate hours evenly and for maintenance intervals to be approached simultaneously. To prevent nuisance PUMP
MAINT indications, all applicable maintenance counters
should be reset after the required maintenance actions are
performed.
INTAKE FILTER
1. Remove the small rear access panel.
2. Remove the wingnut on the filter housing and drop the
cover down. Remove the element without removing the cover
from the enclosure cavity.
3. Clean the inlet filter element with compressed air or
replace with a new element.
NOTE: Never clean filter element with solvents or water.
VENTILATION SCREEN
1. Remove the ventilation screen located at rear of the unit.
2. Clean with compressed air or soap and water if necessary.
feeding to eliminate air from grease passage of the needle
adaptor.
NOTE: Each pump of the grease gun equals 0.65g of grease.
The volume of grease is less after the 2nd pump since some
of the grease supply will remain in the grease passage.
Use only Powerex genuine
grease. Pump grease gun before
INSPECT V-BELT TENSION
1. See page 9 of Operation Manual, IN562802AV.
GREASE COMPRESSOR BEARINGS (Figure 7)
1. Remove the plastic dust cap from the airend.
2. Move the compressor pulley until the grease fitting is
visible through the dust cap hole.
3. Use a grease gun extension adapter to engage the grease
fitting and supply the proper volume of grease as indicated on
the grease delivery chart. See chart below.
Model 1st Time 2nd Time
O.S. Bearing 7 times 6 times
Pin Crank Bearing O.S. Side 7 times 7 times
GREASE PIN CRANK BEARING (Figure 6)
1. Remove fan duct (2) (Key #5)
2. Remove the nuts and bolts and then the fixed scroll from
the air end.
3. Grease all three pin crank bearings as indicated on the
grease delivery chart above.
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