- The up-draft cooler design vents air away from the package. This is a possible space-saving feature that allows heat recovery that could be used for various purposes: supplement space heating, heating of liquids, drying processes, etc..
- Three-phase open drip motor options include 200/208/230/460/575 volts
- Full voltage magnetic starter with 120-volt control power
- The standard T1 microprocessor controller displays status, warnings, maintenance, and is capable of sequencing multiple compressors (gauges are optional)
- One-piece inlet/check valve housing for dependable performance and complete modulation Heavy duty dry type air intake filter with easily replaceable elements
| Model | Horsepower (hp) | Capacity (cfm) | Pressure (psi) | Motor Speed (rpm) |
| 40UD | 40 | 160 | 125 | 3550 |
| 50UD | 50 | 184 | 125 | 3550 |
| 60UD | 60 | 261 | 125 | 3550 |