is a Plenum Integrated Filter Fan which usually works with recirculation air. Thereby no return or supply air ducts are needed on the ceiling which leads to a considerable reduction of installation effort as well as space-saving.
Depending on the coverage of the clean room ceiling, the classes 5.0 to 8.0 according to DIN EN ISO 14644-1 as well as B, C and D according to EC Guide “GMP” can be achieved. The PIFF-COMPACT is installed into the existing ceiling grid by an installation frame.
| Typ | Value |
|---|---|
| Grid size | length: 1,200 mm | width: 1,200 mm |
| Housing length | 1,100 mm |
| Housing width | 1,100 mm |
| Housing height | 590 mm |
| Weight | 70 kg |
| Voltage | between 200 V and 277 V |
| Phase | 1 ~ |
| Frequency | 50 Hz / 60 Hz |
| Rated current | between 1.8 A and 1.3 A |
| Air volume flow | 1,500 m³/h |
| Rated capacity | 280 W |
| Sound power level | 68 dB (A) |
| Clean room sound pressure level | 25 % occupancy: 68 dB (A) |
| Separation efficiency in MPPS | 100 % |
| Pressure drop | 126 Pa |
| Cooling capacity | 2.6 kW |
| Media volume flow | 0.4 m³/h |
| Water temperature | inlet: 14 °C |
| Water temperature | outlet: 20 °C |
| Pressure drop | waterside: 12.7 kPa |
| Air temperature | inlet: 23 °C |
| Air temperature | outlet: 18 °C |
| Pressure drop | airside: 42 Pa |
The PIFF-COMPACT consists of an outer housing with make-up air connection and exhaust air connection together with the internal components HEPA filter cell with fan motor unit in a common internal housing and a cooling coil. As an option, a prefilter can be installed. The supply with fresh air and the collection of exhaust or return air is implemented by a specially designed air grill, which is located on top of the ceiling installation frame of the PIFF-COMPACT. The power and network connectors as well as the cooling water connections (supply /return) are located at the side of the unit. The control valve for the cooling coil is to be provided for a single or a group of PIFF-COMPACT (by others).
The fan draws air from the room via the return air intake in the outlet grill and channels the air through an optional prefilter to the cooling coil. The chilled air-flows through the HEPA filter and is blown with high turbulence into the cleanroom via the outlet air grill. This design prevents a short-cut between supply air and return air. The distribution elements of the outlet air grill are arranged in a special design to ensure a homogenous air distribution to all sides.
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