Install Instructions

20
Single Zone High Efciency, Standard, Extended Pipe and Mega Wall Mount Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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GENERAL INSTALLATION GUIDELINES
Piping Materials and Handling
Table 8: ACR Copper Tubing Dimensions and Physical Characteristics
1-4
Nominal Pipe
Outside
Diameter (in)
Actual Outside
Diameter (in)
Drawn Temper Annealed Temper
Nominal Wall
Thickness (in)
Weight (lb/ft)
Cubic ft per
Linear ft
Nominal Wall
Thickness (in)
Weight (lb/ft)
Cubic ft per
Linear ft
1/4 0.250 -- -- -- 0.030 0.081 .00020
3/8 0.375 0.030 0.126 .00054 0.032 0.134 .00053
1/2 0.500 0.035 0.198 .00101 0.032 0.182 .00103
5/8 0.625 0.040 0.285 .00162 0.035 0.251 .00168
3/4 0.750 0.042 0.362 .00242 0.042 0.362 .00242
7/8 0.875 0.045 0.455 .00336 0.045 0.455 .00336
1-1/8 1.125 0.050 0.655 .00573 0.050 0.655 .00573
1
AlldimensionsprovidedareinaccordancewithASTMB280–Standard.
2
Designpressure=551psig.
3
ACRTubingisavailableasharddrawnorannealed(soft)andaresuitableforusewithR410Arefrigerant.
4
TheCopperTubeHandbook,2010,CopperDevelopmentAssociationInc.,260MadisonAvenue,NewYork,NY10016.
•Commerciallyavailablepipingoftencontainsdustandothermaterials.Alwaysblowitcleanwithadryinertgas.
•Preventdust,waterorothercontaminantsfromenteringthepipingduringinstallation.Contaminantscancausemechanicalfailure.
Selecting Field-Supplied Copper Tubing
Copper is the only approved refrigerant pipe material for use with Duct Free System Single Zone products, and LG recommends seamless
phosphorous deoxidized ACR type copper pipe, hard-drawn rigid type “K” or “L”, or annealed-tempered, copper pipe.
•Drawn temper (rigid) ACR copper tubing is available in sizes 3/8 through 2-1/8 inches (ASTM B 280, clean, dry, and capped).
•Annealed temper (soft) ACR copper tubing is available in sizes 1/4 through 2-1/8 inches (ASTM B 280, clean, dry, and capped).
Tube wall thickness should meet local code requirements and be approved for an operating pressure of 551 psi. If local code does not
specifywallthickness,LGsuggestsusingtubethicknesspertablebelow.Whenbendingtubing,trytokeepthenumberofbendstoaminimum,and
usethelargestradiipossibletoreducetheequivalentlengthofinstalledpipe;also,bendingradiigreaterthanten(10)pipediameterscanminimize
pressuredrop.Besurenotrapsorsagsarepresentwhenrollingoutsoftcoppertubingcoils.
Table 6: ACR Copper Tubing Material
Type Seamless Phosphorous Deoxidized
Class UNS C12200 DHP
Straight Lengths H58 Temper
Coils O60 Temper
OD (in) 1/4 3/8 1/2 5/8 3/4 7/8 1-1/8 1-3/8 1-5/8
Material Rigid Type “K” or “L” and Soft ACR Acceptable Rigid Type “K” or “L” Only
Min. Bend
Radius (in)
.563 .9375 1.5 2.25 3.0 3.0 3.5 4.0 4.5
Min. Wall
Thickness (in)
.03 .03 .035 .040 .042 .045 .050 .050 .050
Table 7: Piping Tube Thicknesses