York YLUA0078 User Manual

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 specic 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 eld 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.

York YLUA0078 Specifications

General

Brand	York
Model	YLUA0078
Category	Heat Pump
Language	English