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Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Service SectionService Section
Technical Training Technical Training
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Good Air Conditioning Good Air Conditioning Installation PracticesInstallation Practices
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Contents
• Location of installationLocation of installation
• PipingPiping
• CleanlinessCleanliness
• ElectricalElectrical
• Refrigerant CircuitRefrigerant Circuit
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of InstallationLocation of Installation
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Indoor unitIndoor unit
• Ceiling too highCeiling too high
Te
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ica
l Tra
inin
gT
ech
nic
al T
rain
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Good Installation PracticesGood Installation Practices
Location of Installation
Indoor unitIndoor unit
• Unit installed in an enclosed areaUnit installed in an enclosed area
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Indoor unitIndoor unit
• Dirty or chemically hazardous environmentDirty or chemically hazardous environment
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Indoor unitIndoor unit
• Avoid high electrical interference environment ( infra Avoid high electrical interference environment ( infra red bar code scanning machine, lighting with red bar code scanning machine, lighting with electronic ballast)electronic ballast)
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Indoor unitIndoor unit
• No service openingNo service opening
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Indoor unitIndoor unit
• Duct work too shortDuct work too short
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Outdoor unitOutdoor unit
• Select a suitable installation siteSelect a suitable installation site
A place where …...A place where …...
…… …… Easy for serviceEasy for service
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Outdoor unitOutdoor unit
• Select a suitable installation siteSelect a suitable installation site
A place where …...A place where …...
…… …… Comply to installation clearanceComply to installation clearance
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Outdoor unitOutdoor unit
• Select a suitable installation siteSelect a suitable installation site
A place where …...A place where …...
…… …… Do not block the air dischargeDo not block the air discharge
Te
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ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Outdoor unitOutdoor unit
• Select a suitable installation siteSelect a suitable installation site
A place where …...A place where …...
…… …… The return air is not short cycleThe return air is not short cycle
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
Outdoor unitOutdoor unit
• Select a suitable installation siteSelect a suitable installation site
A place where …...A place where …...
…… …… To avoid strong windTo avoid strong wind
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
DrainageDrainage
• A proper drainage system is crucialA proper drainage system is crucial
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
DrainageDrainage
• A proper drainage system must be slopedA proper drainage system must be sloped
Te
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ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
DrainageDrainage
• Beware of where it endsBeware of where it ends
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Location of Installation
DrainageDrainage
• Proper length is crucialProper length is crucial
Te
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ica
l Tra
inin
gT
ech
nic
al T
rain
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Good Installation PracticesGood Installation Practices
PipingPiping
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Piping
• Keep the piping as short as possibleKeep the piping as short as possible
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Piping
• Provide oil traps if height of installation exceed 10mProvide oil traps if height of installation exceed 10m
10m
5m
Condenser
Evaporator
Condenser
Evaporator
Te
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ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Piping
• Insulate the pipe and insulate it separatelyInsulate the pipe and insulate it separately
Te
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ica
l Tra
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gT
ech
nic
al T
rain
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Good Installation PracticesGood Installation Practices
Piping
• Bend the pipe using pipe bender instead of hands.Bend the pipe using pipe bender instead of hands.
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Piping
• Do not size up or size down the pipe (especially for Do not size up or size down the pipe (especially for heatpump model)heatpump model)
> Pipe size up - refrigerant velocity downPipe size up - refrigerant velocity down
> Pipe size up - more refrigerant needed - refrigerant Pipe size up - more refrigerant needed - refrigerant floodbackfloodback
> Pipe size up - dilution of oilPipe size up - dilution of oil
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
CleanlinessCleanliness
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Cleanliness
• Do not expose pipes or components to Do not expose pipes or components to environment over an prolong period.environment over an prolong period.
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Cleanliness
• Keep moisture out of pipes or components Keep moisture out of pipes or components
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Cleanliness
• When laying pipes through walls, end of When laying pipes through walls, end of pipes must be properly sealedpipes must be properly sealed
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
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Good Installation PracticesGood Installation Practices
Cleanliness
• When cutting a copper pipe, use copper When cutting a copper pipe, use copper cutter instead of saw.cutter instead of saw.
Te
chn
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l Tra
inin
gT
ech
nic
al T
rain
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Good Installation PracticesGood Installation Practices
Cleanliness
• Always vacuum before charge in refrigerantAlways vacuum before charge in refrigerant
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Cleanliness
• Always braze with present of nitrogenAlways braze with present of nitrogen
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
ElectricalElectrical
Te
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l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Electrical
• Remote control wiring should be separated from Remote control wiring should be separated from power cablepower cable
Te
chn
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l Tra
inin
gT
ech
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al T
rain
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Good Installation PracticesGood Installation Practices
Electrical
• Screw must be tight at terminalsScrew must be tight at terminals
Te
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ica
l Tra
inin
gT
ech
nic
al T
rain
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Good Installation PracticesGood Installation Practices
Electrical
• Examine the power sourceExamine the power source
• Determine the maximum load the power source can Determine the maximum load the power source can handlehandle
Te
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ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Refrigerant CircuitRefrigerant Circuit
Te
chn
ica
l Tra
inin
gT
ech
nic
al T
rain
ing
Good Installation PracticesGood Installation Practices
Refrigerant Circuit
• Proper leak checkProper leak check
• Properly charge the systemProperly charge the system
• For no pre-charge system which is using scroll For no pre-charge system which is using scroll compressor, must contain 80% charge before startcompressor, must contain 80% charge before start
• For system that using TXV, make sure the TXV is For system that using TXV, make sure the TXV is properly installedproperly installed