JOHNSON CONTROLS
37
SECTION 4 – INSTALLATION
FORM 150.73-NM1
ISSUE DATE: 09/04/2020
4
TABLE 4 -
REFRIGERANT LINE CONNECTIONS
MODEL
NUMBER TONS
SYSTEM
NUMBER
REFRIGERANT LINE
CONNECTION
SUCTION LINE
LIQUID LINE
SUCTION
LIQUID
COPPER
TYPE L
INCHES OD
VELOCITY
@ NOMINAL
CAPACITY
IN FPM
NOMINAL
TONS
UNLOADED
COPPER
TYPE L
INCHES OD
0078ZE
81.3
1
2.7
1.1
2-5/8
1656
13.5
1-1/8
2
2.7
1.1
2-5/8
1656
13.5
1-1/8
0088ZE
84.3
1
2.7
1.1
2-5/8
1818
14.9
1-1/8
2
2.7
1.1
2-5/8
1572
13.2
1-1/8
0095ZE
91.1
1
2.7
1.1
2-5/8
1812
14.9
1-1/8
2
2.7
1.1
2-5/8
1896
14.9
1-1/8
0098YE
98.5
1
2.7
1.1
2-5/8
1896
14.9
1-1/8
2
2.7
1.1
2-5/8
1896
14.9
1-1/8
0108YE
111.5
1
2.7
1.1
2-5/8
1812
14.9
1-1/8
2
2.7
1.1
2-5/8
2598
33.6
1-1/8
0130ZE
131.5
1
2.7
1.1
2-5/8
2658
32.8
1-1/8
2
2.7
1.1
2-5/8
2658
32.8
1-1/8
0148ZE
145.3
1
3.1
1.4
3-1/8
2790
31.3
1-3/8
2
2.7
1.1
2-5/8
1926
14.9
1-1/8
0158ZE
158.3
1
3.1
1.4
3-1/8
2658
30.7
1-3/8
2
2.7
1.1
2-5/8
2556
33.1
1-1/8
Refrigerant Piping Notes:
1. Based on R-410A at the nominal capacity of the unit or system, an ambient temperature of 95°F (35°C) and a suction temperature of 45°F
(7.2°C).
2. Suction line sizes were calculated based on a nominal maximum pressure drop to 3 psi/100 ft. (20.7 kPa/30.5 m). When calculating suction
line pressure drop for a specific application, it should be noted that system capacity decreases as suction line pressure drop increases.
4. Nominal Tons (KW) Unloaded is based on one compressor (per system) operating at design conditions.
5. Based on minimum compressor staging for the given pipe size, a double suction riser should be used to ensure proper oil return to the
compressor on all vertical suction risers. Oil returning up the riser moves up the inner surface of the pipe and depends on the mass velocity
of the refrigerant vapor at the wall surface to move the oil up the vertical rise.
6. Hot gas bypass lines are typically 7/8 in. for lines up to 40 ft and 1 1/8 in. for lines over 40 ft in length (12 m). The field connections sizes are
7/8 in. for the optional factory mounted hot gas bypass valve. Note: Hot gas bypass is only available for refrigerant system number 1.
7. For more information, refer to either the YORK DX Piping Guide (
Form 050.40-ES2
) or the
ASHRAE Refrigeration Handbook.
Summary of Contents for YLUA0078
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