Heat Controller HEV-HEH SEriES Design Guide
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Heat Controller, LLC HEV/H SERIES Engineering Design Guide
Air ow Cooling Heating
% of
Rated
Total
Capacity
Sensible
Capacity
S/T Power
Heat of
Rejection
Heating
Capacity
Power
Heat of
Extraction
80% 0.976 0.919 0.941 0.939 0.969 0.983 1.040 0.967
85% 0.984 0.941 0.957 0.953 0.977 0.987 1.018 0.978
90% 0.990 0.962 0.972 0.968 0.986 0.991 1.004 0.988
95% 0.996 0.982 0.986 0.983 0.993 0.996 0.998 0.995
100% 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000
105% 1.003 1.017 1.014 1.018 1.006 1.005 1.010 1.003
110% 1.005 1.032 1.027 1.036 1.012 1.009 1.028 1.004
Heating
Entering
Air DB°F
Heating
Capacity
Power
Heat of
Extraction
50
1.030 0.808 1.092
55
1.026 0.858 1.073
60
1.020 0.905 1.052
65
1.011 0.951 1.027
70
1.000 1.000 1.000
75
0.989 1.054 0.971
80
0.978 1.114 0.940
Cooling
Entering
Air
WB°F
Total
Capacity
Sensible Cooling Capacity Multiplier -
Entering DB °F
Power
Heat of
Rejection
65 70 75 80 85 90 95 100
45 0.638 ********0.914 0.694
50 0.720 ********0.934 0.763
55 0.803 1.044 *******0.953 0.833
60 0.885 0.751 0.927 1.114 * * * * * 0.973 0.903
65 0.967 0.693 0.886 1.089 1.300 * * * 0.992 0.972
67 1.000 0.607 0.798 1.000 1.211 1.432 * * 1.000 1.000
70 1.049 0.669 0.866 1.076 1.299 * * 1.012 1.042
75 1.132 0.644 0.848 1.077 1.329 1.605 1.031 1.111
Full Load Correction Factors
Air Flow Correction Table
Entering Air Correction Table
* = Sensible capacity equals total capacity
AHRI/ISO/ASHRAE 13256-1 uses entering air conditions of Cooling - 80.6°F
DB/66.2°F WB,
and Heating - 68°F DB/59°F WB entering air temperature