Kai Zhang
Comparison between Duct and Ductless Fresh Air System
Comparison between Duct and Ductless Fresh Air System: 1. function 2. cost 3. installation.
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Kai Zhang
- 6 days ago
- 2 min
Difference Between Duct AC and VRF System
Difference Between Duct AC and VRF System: Duct ac is 1 to 1 simple structure, easy installation, less cost, VRF is 1 to multi with precise.
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Kai Zhang
- Aug 20
- 3 min
Difference between Single-Zone and Multi-Zone Air Conditioners
Single-zone air conditioners are ductless split type ACs with 1 outdoor unit and 1 indoor unit for a single area of the home. While Multi.
29 views0 comments
Kai Zhang
- Aug 14
- 1 min
How Many People Needed for Air Conditioning Installation
How Many People Needed for AC Installation? For Commercial HVAC Installation: 3~5 people at least.
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Kai Zhang
- Aug 9
- 5 min
Installation Guide for Household Central Air Conditioning
Installation Guide for Household Central Air Conditioning: 1. On-site Positioning 2. Installation of Indoor Units 3. Installation of.
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Kai Zhang
- Jun 24
- 2 min
Portable Air Conditioners for Athletes in Paris Olympics France
Portable air conditioner, mobile air conditioning fan, and split type wall mounted air conditioner for Athletes in Paris Olympics France.
232 views0 comments
Kai Zhang
- Jun 15
- 2 min
Choose Screw Chillers or Centrifugal Chillers?
screw chillers are suitable for large venues, with relatively more stable cooling capacity and energy efficiency ratio, and higher costs
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Kai Zhang
- Jun 2
- 1 min
Formula for the Ratio of Internal and External Units in a VRF System
The formula for the ratio of internal and external units of VRF is: external unit power=total internal unit cooling capacity/1.3.
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Kai Zhang
- Apr 25
- 3 min
Inspect and Maintenance of VRF Key Components
Inspect and Maintenance of VRF Key Components: compressor, oil separator, four way valve, electronic expansion valve, low pressure tank.
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Kai Zhang
- Apr 19
- 3 min
Centralized HVAC Solutions for Houses and Villas
There are some centralized cooling and heating solutions for houses and villas: 1: Refrigerator Air Conditioner and Wall Mounted Boiler:
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Kai Zhang
- Apr 9
- 3 min
Comparison Between Modular Chillers and VRFs
The comparison of the working principles and advantages of modular chiller and VRF central air conditioning.
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Kai Zhang
- Mar 25
- 4 min
Comparison Between Screw Chillers and Centrifugal Chillers
Comparison Between Screw Chillers and Centrifugal Chillers in structure, capacity, working, efficiency, maintenance, noise, consumption.
1,137 views0 comments
Kai Zhang
- Mar 19
- 1 min
Difference Between Air Cooled Chillers and Water Cooled Chillers
The air conditioning chiller units be air-cooled chiller units and water-cooled chiller units and the main difference is the cooling methods
90 views0 comments
Kai Zhang
- Mar 15
- 2 min
Is It Necessary for Restaurant to Install Central Air Conditioning HVAC System?
When consumers decide to enter a restaurant, they naturally focus on the dining environment, food taste, and services. And a comfortable...
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Kai Zhang
- Feb 26
- 2 min
How to Select Central Air Conditioning Systems for Office Buildings?
How to Select Central Air Conditioning Systems for Office Buildings? VRFs, Modular Water Chillers, Duct ACs, Screw Chillers?
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Kai Zhang
- Feb 17
- 1 min
What is Ground Source Heat Pump?
The ground source heat pump is an efficient and energy-saving air conditioning equipment that utilizes shallow geothermal resources (also...
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Kai Zhang
- Feb 2
- 1 min
Processing Medium for Heat Pump
In the past, the working fluid for heat pumps was generally Freon. However, R22, R417A, 134A, and CO2 are used nowadays for enviroment prote
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Kai Zhang
- Jan 26
- 2 min
What Is Air Source Heat Pump Water Heater?
The air source heat pump water heater is mainly composed of compressors, heat exchangers, shaft fans, insulation water tanks, water pumps.
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Kai Zhang
- Jan 24
- 2 min
What Is High Temperature Air Source Heat Pump?
High temperature air source heat pump refers to a heat pump that has a heating outlet water temperature above 60 ℃
22 views0 comments
Kai Zhang
- Jan 23
- 5 min
China Increased the Export of Air Source Heat Pumps to Europe
The export quantity of air source heat pumps from China to Europe has increased significantly because of the energy shorage in Europe.
238 views0 comments
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