Cut Sheets; Water Source Unit Y-Branch Kits For Heat Pump Systems - LG Multi V Water IV Installation Manual

• LG water source unit Y-branch fittings must be used with LG systems and be properly installed following the instructions in the
applicable LG manual. Field-supplied branch fittings are not permitted.
• Kit components must be kept free of debris and dry before installation.
• All Y-branch kits include a clam shell, peel-and-stick insulation jacket.
Figure 4: Y-branch Connectors (See Table 19).
Figure 5: Y-branch dimensions (See Table 20).
Figure 6: Reducer Components
(See Table 21).
Table 22: Fitting Properties.
Material
Design Pressure

Water Source Unit Y-branch Kits for Heat Pump Systems

Table 19: Y-branch Connection Diameters (inches, ID).
Y-branch
Kit
ARCNN21
ARCNN31
Table 20: Y-branch Dimensions (inches).
Y-branch
Kit
ARCNN21
ARCNN31
Table 21: Y-branch Reducer Diameters (inches).
Y-branch Kit Qty/Kit
ARCNN21 4
ARCNN31 4
Copper
550 psig
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Y-branch Type
1 2
Liquid
— 3/4
AJR67613702
Vapor
1-1/8 1-1/4 1-3/8 7/8 1-1/8 — 1-1/8 —
AJR72963604
Liquid
— 7/8
AJR67613704
Vapor
1-1/2 1-5/8 1-3/8 1-3/8 —
AJR54072908
Y-branch Type
A
Liquid
3-1/4
AJR67613702
Vapor
4-3/8
AJR72963604
Liquid
3-1/4
AJR67613704
Vapor
4-3/8
AJR54072908
Reducer Type
10
7/8 ID
Liquid
5/8 OD
1-5/8 ID 1-1/2 ID
Vapor
1-1/8 OD
3/4 ID
Liquid
1/2 OD
1-5/8 ID
Vapor
1-1/8 OD
Table 23: Insulation Jacket Properties.
Material
UL94 Flame Classification
Density
Thermal Conductivity
Thickness

CUT SHEETS

Port Identifier
3 4 5 6 7
5/8 1/2 5/8 3/8 1/2
3/4 3/4 — — 5/8
— 1-1/8 —
Dimension
B
12-3/8
16-1/16
11-1/16
13-7/8
Reducer Diameters (in)
11 12 13
3/8 OD — —
— 1/2 ID 3/8 ID
— 1-3/8 OD
— 7/8 ID 3/4 ID
— 5/8 ID 1/2 ID
— 3/8 ID 1/4 ID
— 1-3/8 OD —
— 7/8 ID 3/4 ID
Polyolefin Foam
HF-1
1.84 lbs./ft.
0.0208 Btu/h/ft. ºF
1/2 inch
8 9
5/8 —
—
1/2 —
—
C
13-1/16
16-3/8
13-1/8
16
Length
2-3/4
4-3/8
5-1/8
4-3/4
4-3/8
4-3/8
4-7/8
4-3/4
3
37