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ZLA - Industrial air cooler FeZn0 pages
General information & application
The Helpman ZLA series is a wide and flexible range of
heavy-duty industrial air coolers for both cooling and freezing
applications in medium to large cold rooms. Suitable for a
wide range of applications, with a special focus on meat
products.
Evaporating temp. +5 to -40 °C
Refrigerants ammonia (R-717), brine
Capacities (SC2) 4 up to 125 kW*
Air volume 4,000 up to 63,000 m3/h.
* Higher capacities on request
Standard configuration
• Finned coil
- 7 coil block modules
- 4, 6 or 8 tube rows deep
- Steel tubing ø 22 mm
- Tube pitch 60 x 60 mm square
- Steel fins
- Fin spacings 6, 8, 10 and 12 mm
- Coil galvanised acc. NEN-ISO 1461
• 1-4 Fans, drawing through the coil, available in a range
of different executions. Diameters Ø 508 mm up to Ø
800 mm. Enclosed design spray-tight fan motors, protection
class IP55. Motors are equipped with a thermal safety
device in the windings, connected to separate terminals in
the box.
• Corrosion resistant casing material:
Aluminium/Sendzimir.
• Hinged driptray with vertical drain(s) 1 ¼” BSP male.
• Suitable for ammonia refrigerant, pumped system, DX or
gravity flow.
• Refrigerant connections on right hand side
(fan side view).
• Stickers indicate fan direction and refrigerant in/out.
• Delivery in mounting position. Coolers are mounted on
wooden beams. Installation can take
place with use of a forklift.
Test
Design pressure 27 bar, higher design pressures on request.
Each heat exchanger is leak tested with dry air and finally
supplied with a nitrogen pre-charge. Brine coolers are tested
at 6 bar.
ZLA
Industrial air cooler FeZn
ZLA
