13
Tubing
INSTALLATION
Interconnecting Tubing (cont�)
Example:
A 3-Ton condensing unit is installed 50’
below the ID unit, requires a 75’ of 1/2” diameter
liquid line, and 4 90° LR elbows�
• Fitting Equivalent Length (ft�) = 4 x �9 = 3�6’
• Total Equivalent Length (ft�) = 75’ + 3�6’ = 78�6’
• Rounded-down value (ft�) = 75’
R-410A
System
Capacity
Model
Liquid Line
Size
Connection
Size (Inch
I.D.) [mm]
Liquid Line
Size (Inch
O.D.) [mm]
Liquid Line Size
Elevation (Above or Below) Indoor Coil
Total
Equivalent
Length - Feet [m]
25 [7.62]
50 [15.24]
75 [22.86]
100 [30.48]
125 [45.72]
150 [45.72]
175 [53.34]
200 [60.96]
225 [68.58]
250 [76.20]
275 [83.82]
300 [91.44]
Maximum
Vertical Separation - Feet [m]
37
3/8" [9.53]
1/4 [6.35]
25 [7.62]
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
5/16 [7.94]
25 [7.62]
50 [15.24]
60 [18.29]
45 [13.72]
35 [10.67]
20 [6.1]
5 [1.52]
N/R
N/R
N/R
N/R
N/R
3/8 [9.53]
25 [7.62]
50 [15.24]
75 [22.86]
80 [24.38]
80 [24.38]
75 [22.86]
70 [21.34]
65 [19.81]
60 [18.29]
55 [16.76]
50 [15.24]
45 [13.72]
7/16 [11.12] 25 [7.62]
50 [15.24]
75 [22.86]
95 [28.96]
90 [27.43]
90 [27.43]
85 [25.91]
85 [25.91]
85 [25.91]
80 [24.38]
80 [24.38]
80 [24.38]
1/2 [12.71]
25 [7.62]
50 [15.24]
75 [22.86]
95 [28.96]
95 [28.96]
95 [28.96]
95 [28.96]
95 [28.96]
95 [28.96]
90 [27.43]
90 [27.43]
90 [27.43]
This application is acceptable because the 50’
vertical rise is less than the maximum rise of 75’ for
this application� The application is also considered
to have a long line set� Reference the long line set
section of the I&O for detail�
Long Line Set Applications
Long line set applications are defined as ap-
plications that require accessories or alternate
construction methods� The following are special
considerations that need to be addressed when
installing a long line set application:
• Additional refrigerant charge
• Fitting losses and maximum equivalent length
considerations
• Refrigerant migration during the off cycle
• Oil return to the compressor
• Capacity losses
• System oil level adjustment
Table 2 is used to determine if the application is
considered to have a long line set�
The region of
the chart that is shaded grey is considered to
be a long line set application.
Oil Level Adjustments for
Long Line Set Applications
Additional oil will need to be added for long line set
applications� (Ref� Table 2)� Below is the equation
for the oil level adjustment and the compressor
name plate oil charge for the different od units.
Oil to be Added = [(Charge Adju OD
Unit Name Plate Charge (oz.)) x (0.022) – [(0.10)
x (Compressor Name Plate Oil Charge (oz.))]
Example:
An application requires 125ft of line set
with a liquid line diameter of 3/8”, Charge Adjust-
ment = 52�4 oz�, Name Plate Charge = 107 oz�,
Name Plate Oil Charge = 25 oz�, Oil to be Added =
((52�4 oz� +107 oz�) x �022) – (�10 x 25 oz�) = 1�0 oz�
(excerpt fromTable 2, page 16)
(-)A13
OD Model
Compressor
Name Plate Oil
Charge (oz)
(-)A1318AJ
(-)A1318AJ
Alternate
(-)A1324AJ
(-)A1330AJ
(-)A1336AJ
(-)A1342AJ
(-)A1348AJ
(-)A1360AJ
(-)A1336AC
(-)A1342AC
(-)A1348AC
(-)A1360AC
(-)A1336AD
(-)A1342AD
(-)A1348AD
(-)A1360AD
(-)A1348AY
(-)A1360AY
ZP14KAE-PFV-130
ZP14K6E-PFC-130
ZP20KAE-PFV-130
ZP24K5E-PFV-130
ZP31K6E-PFV-130
ZP34K5E-PFV-130
ZP42K5E-PFV-130
ZP51K5E-PFV-130
ZP31K6E-TF5-130
ZP34K5E-TF5-130
ZP42K5E-TF5-130
ZP51K5E-TF5-130
ZP31K6E-TFD-130
ZP34K5E-TFD-130
ZP42K5E-TFD-130
ZP51K5E-TFD-130
ZP42K5E-TFE-130
ZP51K5E-TFE-130
21
21
21
25
25
42
42
42
25
42
42
42
25
42
42
42
42
42
Factory
Installed
CCH
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
(-)A14
OD Model
Compressor
Name Plate Oil
Charge (oz)
(-)A1418AJ
(-)A1418AJ
Alternate
(-)A1424AJ
(-)A1430AJ
(-)A1436AJ
(-)A1442AJ
(-)A1442BJ
(-)A1448AJ
(-)A1460AJ
(-)A1436AC
(-)A1442AC
(-)A1442BC
(-)A1448AC
(-)A1460AC
(-)A1436AD
(-)A1442AD
(-)A1448AY
(-)A1460AY
ZP14KAE-PFV-130
ZP14K6E-PFC-130
ZP20KAE-PFV-130
ZP24K5E-PFV-130
ZP29K5E-PFV-130
ZP34K5E-PFV-130
ZP34K5E-PFV-130
ZP39K5E-PFV-130
ZP49K6E-PFV-130
ZP31K6E-TF5-130
ZP34K5E-TF5-130
ZP34K5E-TF5-130
ZP42K5E-TF5-130
ZP51K5E-TF5-130
ZP31K6E-TFD-130
ZP34K5E-TFD-130
ZP42K5E-TFD-130
ZP51K5E-TFD-130
21
21
21
25
25
42
42
42
42
25
42
42
42
42
25
42
42
42
Factory
Installed
CCH
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
N
N
N
Y
