Air Source Screw Water Chiller Unit – Installation Operation and Maintenance Manual
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1 Introduction
1.1 Function
The air source screw water chiller unit has been forging ahead at the forefront of air-cooled unit. It
saves various auxiliary parts such as cooling tower, cooling pump, and corresponding pipe systems.
Featuring simple system structure, it saves installation space. In addition, it saves energy and can be
maintained and managed conveniently. Therefore, it is especially suitable for the area lack of water. The
indoor unit of air source screw water chiller unit adopts the semi-closed twin-screw compressor with
advanced technology, low noise, and high efficiency. The twin-screw compressor can deliver the optimal
performance when it is used with the evaporator and condenser that are efficient in heat exchange. The
outdoor unit adopts refrigerating pipes design and free of anti-freezing fluid. Condenser fins with high
effective and low noise fan are placed on the condensing pipes based on a certain gap. The unit framework
adopts steel structure with anticorrosive paint on the surface to ensure the reliability and performance
during unit operation.
The air source screw water chiller unit is transported to the site in split mode. The refrigerant pipes of
indoor units have been properly assembled before delivery, and charged with the necessary refrigerants
and lubricants. The air source screw water chiller unit adopts twin-screw compressor designed with the
most advanced, industrial third-generation asymmetric technology of 5 gear teeth to 6 gear teeth. The
detailed functions are as follows:
Variable capacity adjustment, high efficiency, and energy saving.
Human-orientated micro-computer control system with remote control function.
Ten self-protection functions to ensure the safe and reliable operation.
This full series of units have diversified models and can be customized for you.
The company adheres to the customer-driven design concept to meet customer’s various requirements.
This series of units features compact structure, small size, low noise, high COP, long service life, easy
operation and maintenance, and other advantages. Therefore, they are widely used in multiple scenarios
such as hotels, restaurant, office buildings, shopping malls, hospitals, etc. In addition, they are applicable
to air conditioning scenarios such as metallurgical, chemical, mechanical and electronic industry.
1.2 Features
1.2.1 Simple and Economic Apparatus
(1) The compact appearance makes this series of units widely used for various buildings, saving the
space for the equipment room.
(2) The bolt joints allow you to rapidly and conveniently assemble and disassemble the units.
(3) Lightweight design simplifies the operation requirements and reduces installation time and cost.
(4) Units have been charged with refrigerants and lubricants before delivery, which reduces the onsite
