15
Tubing
Interconnecting Tubing (cont.)
Suction Line Selection
Purpose of the suction line is to return superheated
vapor to the condensing unit from the evaporator.
Proper suction line sizing is important because it
plays an important role in returning oil to the com-
pressor to prevent potential damage to the bear-
ings, valves, and scroll sets. Also, an improperly
sized suction line can dramatically reduce capacity
and performance of the system. The procedure for
selecting the proper suction line is as follows:
• The total amount of suction line needed
• Add all of the equivalent lengths associated with
any
fi
ttings or accessories using the table on
previous page.
• Add the total length and
fi
tting pressure drop.
This will equal your total equivalent length.
• Reference Table 2 to verify that the calculated
equivalent length falls within the compatibility
region of the chart.
• Verify Table 3 to verify the capacity di
ff
erence is
compatible with the application.
Refrigerant Migration During
Off Cycle
Long line set applications can require a consider-
able amount of additional refrigerant. This addition-
al refrigerant needs to be managed throughout the
entire ambient operating envelope that the system
will go through during its life cycle. O
ff
-Cycle mi-
gration is where excess refrigerant condenses and
migrates to the lowest part of the system. Exces-
sive build-up of refrigerant at the compressor will
result in poor reliability and noisy operation during
startup. This section demonstrates the required
accessories and unit con
fi
guration for di
ff
erent ap-
plications.
INSTALLATION
OD Model
Compressor
Name Plate Oil
Charge (oz)
RP1518AJ
ZP16K5E-PFV-13R 21
RP1524BJ
ZP20K6E-PFV-130 21
RP1530BJ
ZP24K6E-PFV-130
25
RP1536AJ
ZP31K6E-PFV-130 21
RP1542AJ
ZP36K5E-PFV-13R
42
RP1548AJ
ZP40K6E-PFV-130 42
RP1560AJ
RP1536AC
RP1542AC
RP1548AC
RP1560AC
ZP49K6E-PFV-130
ZP31K6E-TF5-130
ZP36K5E-TF5-13R
ZP40K6E-TF5-130
ZP49K6E-TF5-130
42
21
42
42
42
N
N
N
N
N
N
N
N
N
Y
N
N
Y
Y
Factory
Installed
CCH
RP1518BJ
ZP14K6E-PFV-130 21
RP1524AJ
ZP21K5E-PFV-13R 21
RP1530AJ
ZP25K5E-PFV-13R
25
OUTDOOR UNIT LEVEL OR NEAR LEVEL TO INDOOR SECTION LINE SET
LIQUID LINE.
ST-A1219-01-01
IDEALLY, LINE SET SLOPES AWAY
FROM OUTDOOR. VERIFY
SUB-COOLING PRIOR TO
THROTTLEING DEVICE, INSULATED
REFERENCE TABLE 2 FOR
MAXIMUM LENGTH LIMITATIONS
Summary of Contents for RP13
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Page 51: ...51 Wiring Diagrams WIRING DIAGRAMS 3 PHASE 208 230V MODELS...
Page 52: ...52 Wiring Diagrams WIRING DIAGRAMS FOR 3 PHASE 460 575V...
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