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Selection Data (Cont'd)
TABLE 4 - REFRIGERANT LINE CONNECTIONS
MODEL
TONS
NUMBER
QCC3
080CZE
81.3
085CZE
84.3
090CZE
91.1
100CYE
98.5
110CYE
111.5
130CZE
131.5
145CZE
145.3
160CZE
158.3
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 suc-
tion line pressure drop for a specific application, it should be noted that system capacity decreases as suction line pressure drop increases.
3. Nominal Tons (KW) Unloaded is based on one compressor (per system) operating at design conditions.
4. 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.
5. Hot gas bypass lines are typically 7/8" for lines up to 40 feet and 1-1/8" for lines over 40 feet in length (12 meters). The field connections siz-
es are 7/8" for the optional factory mounted hot gas bypass valve. Note: Hot gas bypass is only available for refrigerant system number 1.
6. For more information, please refer to either the YORK DX Piping Guide (Form 050.40-ES2) or the ASHRAE Refrigertion Handbook.
QUANTECH
REFRIGERANT LINE
CONNECTION
SYSTEM
NUMBER
SUCTION
1
2.7
2
2.7
1
2.7
2
2.7
1
2.7
2.7
2
1
2.7
2
2.7
1
2.7
2
2.7
1
2.7
2
2.7
1
3.1
2.7
2
1
3.1
2
2.7
SUCTION LINE
VELOCITY
COPPER
@ NOMINAL
TYPE L
CAPACITY
LIQUID
INCHES OD
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.1
2-5/8
1.4
3-1/8
1.1
2-5/8
1.4
3-1/8
1.1
2-5/8
FORM QCC3-EG1 (517)
LIQUID LINE
NOMINAL
COPPER
TONS
INCHES OD
UNLOADED
IN FPM
13.5
1656
1656
3.5
1818
14.9
1572
13.2
1812
14.9
1896
14.9
1896
14.9
1896
14.9
14.9
1812
2598
33.6
2658
32.8
2658
32.8
2790
31.3
1926
14.9
2658
30.7
2556
33.1
TYPE L
1-1/8
1-1/8
1-1/8
1-1/8
1-1/8
1-1/8
1-1/8
1-1/8
1-1/8
1-1/8
1-1/8
1-1/8
1-3/8
1-1/8
1-3/8
1-1/8
17
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