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Hi-Duty Dual Discharge Industrial Air Coolers
Helpman THOR-D
Helpman THOR-D
The Helpman THOR-D series is a wide and flexible range of heavy-duty dual discharge 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 storage, agricultural produce and processing rooms.
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Refrigeration
Data Center Cooling
Technical features
- Main applications
The Helpman THOR-D series is a wide and flexible range of heavy-duty dual discharge industrial air coolers - Refrigerant
All HFO/HFC, CO2 and Brine - Capacities
4.5 up to 116.1 kW**Higher capacities on request
- Air volume
3,000 up to 60,000 m3/h - Evaporating temperature
+5 to -40 °C - Design pressure
6 up to 33 bar - Fan-motors
1-5 Fans, available in a range of different executions - Fan diameters
Ø 457, 508 and 560 mm
- Refrigerant
- All HFO/HFC, CO2 and Brine
- Capacities
- 4.5 up to 116.1 kW*
*Higher capacities on request
- Air volume
- 3,000 up to 60,000 m3/h
- Evaporating temperature
- +5 to -40 °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 with vertical drains 1 ¼” BSP male.
- Refrigerant distribution optimised to refrigerant applied.
- Fitted with schräder valve on the suction connection for testing purposes (not for R-717).
- 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
- 1-5 Fans, available in a range of different executions.
- Diameters Ø 457, 508 and 560 mm.
- Cables are led to the outside of the casing.
- 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.
- All models available in both high and low fan speed execution.
- 1000 rpm (=L design)
- 1500 rpm (=H design)
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. - Hot glycol defrost (HW1, HW2)
- Electric defrost (E1, E4)
Electric defrost for air coolers with pumped refrigerant circulation or in glycol execution on special request only.
- Fan ring heater (FRH)
- Driptray insulation
- Styropore 10 mm + cladding (I2)
Not combined with electric defrost - Foamglass 25 mm + cladding (I3)
- Styropore 10 mm + cladding (I2)
- Isolating switch, mounted (ISM)
- Horizontal drain
Hinged drip tray with horizontal drain at the short side.
Available for THOR-D up to 3 fans, but not in combination with driptray insulation I2/I3. - Dual fan speed motors modules 2 and 4 only
- 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) or 6 bar (brine).
- Each heat exchanger is leak tested with dry air and finally supplied with a nitrogen pre-charge.
Coil
- 3 coil block modules.
- 4, 6 or 8 tube rows deep.
- Cu ripple fin tubing ø 5/8” (smooth tubing for brine).
- Tube pitch 50 x 50 mm square.
- Corrugated Alu-fins.
- Fin spacings 4 and 7 mm.
Certifications
- The LU-VE quality system is in accordance with ISO 9001. All products are manufactured according to PED regulations.