GA ACF gas absorption chiller

Special versions

• ACF TK: for process applications.
• ACF LB: for industrial refrigeration.
• ACF HT: for hot climate cooling.

The ACF version and all the special versions are available as standard or low noise.

Customized pre-assembled groups Link for configurations of more power or combined with Robur gas absorption chillers or condensing boiler are available on demand.

Standard ACF

Ideal for cooling where the availability of electrical power is limited or costly.

ACF TK

• Cooling in process applications. (e.g. in greenhouses for the intensive cultivation of mushrooms, rooms used for medium/longterm maturing of cheese, etc).
• Cooling of controlled temperature rooms throughout the year (e.g. data reading rooms, computer rooms, laboratories).
• Cooling of rooms with high heat gains that require cooling even during cold seasons.

ACF LB

• Refrigeration of low temperature environments for the food industries, where it is necessary to maintain temperatures inside the room in compliance with health and hygiene regulations.
• Refrigeration of cold rooms and counters for food preservation.
• Process refrigeration in systems requiring negative fluid temperatures.
• Ice storage systems, for the storage of cooling energy during periods of low energy needs.

ACF HT

Cooling of residential, commercial and industrial environments with an external air temperature up to 50 °C.

COOLING OPERATION

ACF and special versions, standard and low-noise

Nominal cooling output - Outdoor temperature / Water outlet temperature A35W7: kW 17.7
Nominal cooling output - Outdoor temperature / Water outlet temperature A35W-5 ACF LB: kW 13.3

Real heat input: kW 25.0

Minimum cold water temperature (outlet): °C 3 ⁽¹⁾
Minimum cold water temperature (outlet) ACF LB: °C -10
Minimum cold water temperature (outlet) ACF HT: °C 5

Maximum cold water temperature (inlet): °C 45

Minimum cold water temperature (inlet): °C 8
Minimum cold water temperature (inlet) ACF LB: °C -7

Nominal cold water flow: l/h 2,770
Nominal cold water flow ACF HT: l/h 2,675
Nominal cold water flow ACF LB: l/h 2,600

Water pressure drop in cooling mode at nominal water flow: bar 0.29 ⁽²⁾
Water pressure drop in cooling mode at nominal water flow ACF LB: bar 0.42 ⁽³⁾

Maximum outdoor temperature: °C 45
Maximum outdoor temperature ACF HT: °C 50

Minimum outdoor temperature ACF standard: °C 0
Minimum outdoor temperature ACF TK: °C -12


ELECTRICAL SPECIFICATIONS

Nominal electrical power absorption ⁽⁴⁾: kW 0.82 ⁽⁵⁾
Low-noise electrical power absorption ⁽⁴⁾: kW 0.87 ⁽⁵⁾
Degree of protection: IP 25

Sound pressure level Lp at 5 m (maximum) Standard: dB(A) 57.6 ⁽⁶⁾
Sound pressure level Lp at 5 m (maximum) Low-noise: dB(A) 53.0 ⁽⁶⁾

(1) To be set (on request) at first start-up. Default minimum temperature setting = 4.5 °C.
(1) To be set (on demand) during the first start-up. Default Minimum Temperature = 4,5 °C.
(2) For flows other than nominal see Design Manual, Pressure losses Paragraph.
(3) The data refer to operation with 40% glycol water. For flows other than the nominal flow, refer to the Design Manual, Paragraph Pressure drops.
(4) ±10% depending on power voltage and absorption tolerance of electric motors.
(5) ±10% according to the power supply voltage and tolerance on electrical motors consumption. Measured at outdoor temperature of 30 °C.
(6) Maximum sound pressure levels in free field, with directivity factor 2, obtained from the sound power level in compliance with standard EN ISO 9614.