Thermal Insulation Of Refrigerant Piping - LG MULTI V IV ARUB080BTE4 Installation Manual

Thermal insulation of refrigerant piping

Be sure to give insulation work to refrigerant piping by covering liquid
pipe and gas pipe separately with enough thickness heat-resistant poly-
ethylene, so that no gap is observed in the joint between indoor unit
and insulating material, and insulating materials themselves. When in-
sulation work is insufficient, there is a possibility of condensation drip,
etc. Pay special attention to insulation work to ceiling plenum.
Heat insulation
material
Outer
covering
Ⓐ Heat insulation material
Ⓑ Pipe
Ⓒ Outer covering(Wind the connection part and cutting part of heat in-
sulation material with a finishing tape.)
!
NOTE
When using polyethylene cover as covering material, asphalt roof-
ing shall not be required.
Bad example
• Do not insulate gas or low pressure pipe and liquid or highpres-
sure pipe together.
A
C
D
E
• Be sure to fully insulate connecting portion.
A
Ⓐ These parts are not insulated.
Good example
C
Power lines
D
D
A
B
E
Adhesive + Heat - resistant poly-
ethylene foam + Adhesive tape
Indoor Vinyl tape
Floor ex- Water-proof hemp cloth +
posed Bronze asphalt
Water-proof hemp cloth +
Outdoor
Zinc plate + Oily paint
Ⓐ Liquid pipe
Ⓑ Gas pipe
ⓒ Power lines
ⓓ Finishing tape
ⓔ Insulating material
ⓕ Communication lines
Communication lines
Ⓐ Liquid pipe
Ⓑ Gas pipe
ⓒ Power lines
ⓓ Insulating material
ⓔ Communication lines
Separation
Outdoor Unit
Indoor
Unit
Outdoor Unit
Indoor
Unit
2-Core Shield Cable
Outdoor Unit
Indoor
Unit
Remote
control
Outdoor Unit
Indoor
Unit
Remote
control
Multi-Core Cable
Outdoor Unit
Master Slave1 Slave2
Indoor
Unit
Outdoor Unit
Master Slave1 Slave2
Indoor
Unit
2-Core Shield Cable
Outdoor Unit
Master Slave1 Slave2
Outdoor Unit
Master Slave1 Slave2
Multi-Core Cable
23
Indoor
Unit
Remote Remote
control control
Indoor
Unit
Remote Remote
control control
Indoor
Unit
Remote
control
Indoor
Unit
Remote
control
Indoor
Unit
Remote Remote
controller controller
Indoor
Unit
Remote Remote
controller controller
Indoor Indoor
Unit Unit
Remote Remote
controller controller
Indoor Indoor
Unit Unit
Remote Remote
controller controller