Carrier service manual R410a DC Inverter 60Hz
Installation 145
6.3 Insulation of Duct
I. Insulation of duct
1) Insulation of duct parts and equipment should be conducted after confirming that the leakage test and
quality of duct is qualified.
2) Usually making use of centrifugal glass cotton, rubber/plastic material or other late-model insulation
duct to conduct insulation.
3. Insulation layer should be even and tight. Crack, gap and other defects are not allowed.
4. The supporting, hanging and mounting bracket of duct should be set up to the outside of insulation
layer, and insert bed timber between bracket and duct.
5. Thickness of insulation layer
1) As for the inlet and outlet duct installed in room free of air conditioner, the thickness of insulation layer
should be above 1-37/64(40mm) when adopting centrifugal glass cotton for insulation.
2) As for the inlet and outlet duct installed in room with air conditioner, the thickness of insulation layer
should be above 63/64in.(25mm) when adopting centrifugal glass cotton for insulation.
3) When adopting rubber/plastic material and other materials, the thickness of insulation layer should be
come out in accordance with design requirement or calculation.
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