Powerex OTD Series Instructions Manual

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
The OTD Series Powerex Duplex Air Compressors have
been designed and tested to meet the most demanding
specifi cations for reliability in the pneumatic oil-free industry.
All Powerex air compressors have reliable operation and
feature high quality construction and components. An
unloading feature is included on all compressors to provide
loadless starting. Powerex oilless pumps use composite piston
technology, low compressor speeds and PTFE compression
ring(s) at low maintenance costs.
All 2 through 15 HP models are also equipped with an
auxiliary cooling fan and air control shroud to achieve low
head temperatures, further minimizing ring wear.
Powerex compressor motors are NEMA Class B or better
design. Single-phase motors have built-in overload protection
and a DPST disconnect switch. Three-phase motors require
a manual or magnetic starter and three overload heater
coils which may be ordered as a factory mounted-and-wired
option.
Features
• Oilless reciprocating compressor pump
• High effi ciency ODP motors
• Three year warranty on compressor pump
• Optional Isolation pads
• Optional R134 dryer
• ASME tank
• UL listed controls (with optional panel)
The performance specifi cations are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifi cations, consult the local Powerex offi ce. Powerex shall not be liable for damages resulting from misapplication or misuse of its products.
Powerex • 150 Production Drive • Harrison, OH 45030 • USA
1-888-769-7979 • www.powerexinc.com
Oilless Tankmount Duplex
Specifi cations
Product OTD Series Powerex Duplex Air Compressors
Performance
See Page 2
Specifi cations
Lubrication Grease Filled Bearings
1Ø 1 HP - 1-1/2 HP 115 - 280 / 230 Volts, 60 Hz
Operating
2 HP - 5 HP 280 / 230 Volts, 60 Hz
Voltages
3Ø 280 - 230 / 460 Volts, 60 Hz
Compression Single-Stage (1 HP - 3 HP Models)
Cycle Two-Stage (5 HP - 15 HP Models)
Motor 1Ø Built-in Thermal Overload (Standard)
Overload 3Ø IEC Magnetic Starter with Adjustable
Protection Overload (Optional)
Pressure Lead Cut-In: Factory Set at Approx. 90 psig (621 kPa)
Settings Cut-Out: Factory Set at Approx. 120 psig (827 kPa)
Lag Cut-In: Factory Set at Approx. 80 psig (552 kPa)
Cut-Out: Factory Set at Approx. 110 psig (758 kPa)
Overpressure ASME Safety Valve Factory Set and Sealed
Protection
Outlet Air 1/2 inch NPT (30, 60, and 80 Gallon Tanks)
Connections 1 inch NPT (120, 200 and 240 Gallon Tanks)
Tank Sizes See Page 2
California Meets Requirements of this Ordinance
Ordinance
462 (L) (2)
Tank Isolation Standard All Units
Drive V Belt
Control Panel Optional Panel UL508A Listed
IN256905AV 1/14