63
DC Inverter Multi
VRF Service Manual
3 INSTALLATION OF OUTDOOR UNIT 
3.1 Cautions for installation of side discharge outdoor unit
To ensure good operation of the air conditioner, the selection of installing position must be in accordance 
with the following principles:
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and that enough space shall be maintained around the machine for repair.
 The installing position shall be in good ventilation, so that the machine can breathe and exhaust enough 
air.
 The installing position shall be strong enough to withstand the weight of outdoor unit and be able to 
isolate the sound and absorb the vibration;Also ensure that the outlet air and noise from the air conditioner will 
not affect the neighbors.
 The outdoor unit must be lifted by using the designated lift hole. During lifting, take care to protect the 
air conditioner and avoid knocking the metal parts, thus to prevent rusting in the future.
 Avoid direct sunshine as it might be.
 The installing position must be able to drain the rainwater and the water generated from defrosting.
 The installing position must ensure that the machine will not be buried in the snow or affected by the 
wastes or oil mist.
 To meet the noise and vibration requirements, the outdoor unit shall be installed by using rubber 
damping pad or spring damper.
 The installing dimension shall comply with the installation requirements in these instructions. The 
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 The installation shall be done by specialist technicians.
3.2 Selection of Installation Site 
 The place with no residual air
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 The place where the air will not obstruct the water inlet pipe or water outlet pipe
 The place that goes beyond the heating range of other heat sources
 The place where the wastewater can be safely drained
 The place where the noise and hot air will not affect the neighbors
 The place where the snow will not be piled
 The place where the water outlet pipe will not be blown by strong wind
Notes:
Do not use guardrail on four sides. Leave 1m at least above the machine.
In case of short-circuit risk, please install an adaptor changeable in air direction.
To avoid short circuiting, please provide adequate suction space when multiple machines are to be 
installed.
In the region with snow, the machine shall be installed in a frame or beneath the snow guard, thus to 
prevent snow piling on the machine.
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*The snow guard and other devices shall be designed and installed by the user.