Helpman TYR-F
The Helpman TYR-F air cooler series has been specifically designed for the refrigerated storage of agricultural produce.
These coolers are characterised by an optimised capacity/air volume ratio and a relatively low profile. All models have been optimised for air temperatures around 0 °C and a small temperature difference to avoid product dehydration.
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Refrigeration
Technical features
- Main applications
The Helpman TYR-F air cooler series has been specifically designed for the refrigerated storage of agricultural produce - Refrigerant
Ammonia (R-717), all HFO/HFC, CO2 and Brine - Capacities*
18 up to 52 kW*Higher capacities on request
- Air volume
12,800 up to 36,000 m3/h - Evaporating temperature
+5 to -10 °C - Design pressure
6 up to 33 bar - Fan-motors
3-7 Fans, blowing through the coil - Fan diameters
Ø 406 or 457 mm
- Refrigerant
- Ammonia (R-717), all HFO/HFC, CO2 and Brine
- Capacities*
- 18 up to 52 kW
*Higher capacities on request
- Air volume
- 12,800 up to 36,000 m3/h
- Evaporating temperature
- +5 to -10 °C
- Design pressure
- 6 up to 33 bar
Casing
- Corrosion resistant casing material: Aluminium/Sendzimir, white epoxy coated (RAL 9003).
- Hinged, enclosed end covers.
- Hinged driptray, drain(s) 32 mm
PVC connection, freely adjustable into either horizontal or vertical position. - Refrigerant distribution optimised to refrigerant applied.
- Refrigerant connections on right hand side (fan side view).
- Fitted with schräder valve on the suction connection for testing purposes.
- Sufficient room for fitting the expansion valve inside.
- Suitable for dry expansion or pumped system.
- 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.
Fan-Motors
- 3-7 Fans, blowing through the coil.
- Diameters Ø 406 mm or Ø 457 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.
- Fans with elevated external pressure to ensure optimised air distribution.
Options
- Defrost systems
- Hot gas coil in driptray (G1)
- Hot gas connected (G1C)
Hot gas coil in driptray connected to suction header, without non-return valve. - Water defrost (W)
- Electric defrost (E1, E4)
Electric defrost for air coolers with pumped refrigerant circulation or in glycol execution on special request only.
- Driptray insulation
- Styropore 10 mm + cladding (I2)
Not combined with electric defrost - Foamglass 25 mm + cladding (I3)
- Styropore 10 mm + cladding (I2)
- Refrigerant connections (L/R) (fan side view)
- Isolating switch, mounted (ISM)
- Secondary refrigerant
All models available for brine application.
Standard stainless steel welding, other connections (thread/flange) on request. - Stainless steel 304 casing (SSC).
- Hinged fan plate (HN).
Design pressure
- Design pressure 33 bar (HFO/HFC), 27 bar (ammonia) or 6 bar (brine).
- Higher design pressures on request.
- Each heat exchanger is leak tested with dry air and finally supplied with a nitrogen pre-charge.
Coil
- 2 coil block modules.
- 6 tube rows deep.
- Stainless steel tubing ø 16 mm.
- Tube pitch 50 x 50 mm square.
- Corrugated Alu-fins.
- Fin spacings 7 mm.