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CAUTION
(1)Always use safety outfits at the construction site.
(2)No smoking and no drunken operation are allowed at the construction site.
(3)Wear no gloves and tighten the cuff when operating the machinery and electrical
equipment. Do not maintain it during operation.
(4)Use the abrasive-disk cutter and stand at the side of the rotating abrasive disk.
(5)Clean the opening when installing the riser pipe, and then cover it tightly. Do not throw
down any material.
(6)The use of the electric and gas welders should be approved firstly. Once used, a fire
extinguisher should be prepared and a service man should be there always. There
should be no inflammable and explosive substances around the welding site.
(7)A platform should be set up when working high above the ground.
Executive Standards, Codes and Regulations
(1)Fire protection design of tall buildings GB50045-95.
(2)Code of design on building fire protection and prevention GB50016-2006.
(3)Code for electric design of civil buildings JGJ16-2008.
(4)Technical specification or construction of air conduct JGJ141-2004.
(5)Unified standard for constructional quality acceptance of building engineering GB50300-
2001.
(6)Code of acceptance for construction quality of ventilation and air conditioning works
GB50243-2002.
(7)Code for acceptance of construction quality of water supply drainage and heating works
GB50242-2002.
(8)Code for construction and acceptance of refrigeration and air separating equipment in-
stallation engineering GB 50274-2005.
5.2.2 Importance of Installation
See the table below for problems occurred frequently and caused influences.
No.
Typical Problems
Caused Influences
1
Inadequate space for installation
It would lead to harder maintenance,
poor ventilation, poor heat exchanging
or even abnormal operation.
2
Improper piping of the water system The unit would fail to run normally.
3
Improper cleaning for water piping
It would make foreign matters enter the
water system, which then would lead to
heavy scaling on the heat exchanger,
cracked or leaked heat exchanger.
A Series Modular-type Air-cooled (Heat Pump) Chiller