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Title:
AIR CONDITIONING SYSTEM AND AIR CONDITIONING SYSTEM REPAIR METHOD
Document Type and Number:
Japanese Patent JP2021143773
Kind Code:
A
Abstract:
To provide a 2-tube air conditioning system that achieves a cooling/heating-free type system, and enables reduction of an installation space, construction cost and energy in comparison with conventional technology.SOLUTION: An air conditioning system includes an air conditioner for treating treated air containing outside air and return air. The air conditioning system includes: a cold/hot water coil for circulating cold/hot water between two cold/hot water tubes forming a forward path and a return path, and performing sensible heat treatment of the treated air; and a water source heat pump for performing at least latent heat treatment of the treated air. The water source heat pump has: a water heat source machine for circulating the cold/hot water between the cold/hot water tubes; and a direct expansion coil for circulating a coolant between the water heat source machine and itself, and performing heat exchange with the treated air and the coolant. In a casing of the air conditioner, the cold/hot water coil and the direct expansion coil are arranged from a flowing direction upstream side of the treated air in the order.SELECTED DRAWING: Figure 1

Inventors:
HIRAI HITOSHI
KIKUCHI SAKAE
YAMAMOTO JUNJI
JIN KENICHIRO
MIYASHITA SHINICHI
Application Number:
JP2020040836A
Publication Date:
September 24, 2021
Filing Date:
March 10, 2020
Export Citation:
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Assignee:
NIPPON PMAC CO LTD
International Classes:
F24F3/00
Attorney, Agent or Firm:
Tetsuo Kanamoto
Koji Hagiwara
Naoki Ogita
Takashi Saito
Takuya Mine



 
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