Carrier Direct-fired Absorption Chiller

Green and environmentally friendly air-conditioning products. Using water as the refrigerant and lithium bromide solution as the absorbent, it operates in a vacuum, which is safe and harmless to the human body and the environment. The unit uses clean energy such as gas (gas/natural gas) and fuel (light oil), uses less electrodes, and does not pollute the atmosphere. There are no large moving parts, the unit runs without vibration and low noise.

One machine is multi-purpose. The unit can provide cold water or hot water, and can also provide sanitary hot water at the same time according to user requirements.

Save operating costs. Carrier's unique fouling design makes the unit high in thermal efficiency and obvious energy saving effect. The normal operating temperature of the cooling water can be as low as 15°C, and the partial load efficiency is higher.

The operation of the unit is safe and reliable. The ejection air extraction system is adopted to ensure the vacuum performance and service life of the unit. It is equipped with multiple anti-crystallization protections such as automatic solution concentration control, absorber mixed solution spraying, and automatic crystal melting device to ensure trouble-free operation of the unit.

The unit is easy to operate and manage. The touch screen control system has a clear man-machine interface and a standard communication interface, which can communicate with the central control system, which is suitable for centralized control and management of large air-conditioning systems.

Wide range of uses

Unit schematic diagram

Refrigeration cycle 

Heating cycle

Part load characteristics

The cooling water temperature is as low as 15℃ (no cooling water temperature adjustment device is required), and the unit can also operate normally. At the same time, as the cooling water temperature decreases, fuel consumption drops significantly, thereby reducing operating costs. 

Main feature

1. The structure of the unit is more compact.

The unit's small size and floor space are beneficial to reduce the initial investment cost of the machine room, the weight is correspondingly reduced, and the hoisting and transportation is more convenient.

2. The amount of solution flushing is small, and the unit starts quickly.

The unit is ventilated for 3 minutes, and the cooling capacity can reach 40% of the normal load.

3. The unit structure is sturdy.

In order to adapt to the thermal expansion and contraction caused by the rapid temperature change, the 90-10 copper-nickel alloy U-tube structure is adopted in the high-pressure generator, which prolongs the service life of the heat transfer tube.

Lifting and transportation

During transportation, anti-vibration pads should be prevented under the support of the unit to reduce the vibration of the unit during transportation. Transport personnel must slow down when driving on bumpy roads to prevent the unit from being damaged due to intense vibration.

Crew in place

1. Before the unit is in place, confirm that the concrete foundation is sufficiently rigid.

2. After the unit is in place, correct the longitudinal and lateral level of the unit with the unit tube plate level reference point, and the level error after correction should be less than 1/1000.

3. After completing the horizontal adjustment of the unit, pour concrete mortar into the square hole of the foundation where the anchor bolts are placed, and after the concrete mortar is hardened, tighten the anchor bolt nuts that secure the unit.

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