Emerson Copeland Scroll Series, Manual

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© 2017 Emerson Climate Technologies, Inc.
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AE5-1377 R3
Table 9 - Refrigerant Liquid Temperature Valve Capacity Multiplier Correction Factors
Refrigerant Liquid Temperature °F
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140
R-12
Correction Factor
1.60 1.54 1.48 1.42 1.36 1.30 1.24 1.18 1.12 1.06 1.00 0.94 0.88 0.82 0.75
R-134a
Correction Factor
1.70 1.63 1.56 1.49 1.42 1.36 1.29 1.21 1.14 1.07 1.00 0.93 0.85 0.78 0.71
R-22
Correction Factor
1.56 1.51 1.45 1.40 1.34 1.29 1.23 1.17 1.12 1.06 1.00 0.94 0.88 0.82 0.76
R-404A/R-507
Correction Factor
2.00 1.90 1.80 1.70 1.60 1.50 1.40 1.30 1.20 1.10 1.00 0.90 0.80 0.70 0.50
These factors include corrections for liquid refrigerant density and net refrigerating effect and are based on an
average evaporator temperature of 0°F. However, they may be used for any evaporator temperature from - 40°F to
+ 40°F since the variation in the actual Factors across this range is insignificant.
Table 10 - Pressure Control Settings for SJAL/M Units
Application Control R-404A/R-507 R-407A R-407C
XJAL(Low Temp) Low Pressure 0 PSIG min. N/A N/A
XJAM(Medium
Temp)
Low Pressure 17 PSIG min. 26.9 PSIG min. 9.4 PSIG min.