Engineering Bulletin

Material
Polyolefin Foam

HF-1
Density
1.84 lbs./ft.
3
Thermal Conductivity
.0208 Btu/h/ft. ºR
Thickness
1/2 inch
Fitting Properties.
Liquid and Gas
Pipe Joints
Y-Branch Kit Insulation
Insulation for
Field-Installed Piping
Field-Supplied Insulation Tape
CUT SHEET
Y-Branch Kit
Model Y-Branch Type

1 2 3
PMBL5620
Liquid Ø3/8 Ø3/8 Ø3/8
Vapor Ø3/4 Ø3/4 Ø3/4
Y-Branch Type
Dimensions (inch)
X Y
Liquid 13.80 3.24
Vapor 12.48 3.02
LG Y-Branch Kit PMBL5620 is required when installing two branch
distribution units in parallel on one LG Multi F MAX system.
The kit must be properly installed following instructions in the appli-
cable LG manual. Field-supplied branch fittings are not permitted.
Kit components must be kept free of debris and be dry before
installation.
All Y-Branch Kits include a clam shell, peel-and-stick insulation
jacket.
 Multi F MAX Y-Branch Connection Diameters.
Material
Copper
Design Pressure
551 psig
 Insulation Jacket Properties.
A
B
X
Y
1
2
3
A = To Outdoor Unit
B = To Branch Distribution Unit
1
2
3

Y-Branch Dimensions Diagram.
Y-Branch Insulation Jacket Diagram.
Due to our policy of continuous product innovation, some specications may change without notication.
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DESIGN & PRACTICES | 195
Refrigerant Piping Design and Best Practices
A