Carrier 50TFF007-014 - COOLING CAPACITIES SI (cont); LEGEND AND NOTES FOR COOLING CAPACITY TABLES - SI

19
COOLING CAPACITIES — SI (cont)
LEGEND AND NOTES FOR COOLING CAPACITY TABLES — SI
LEGEND
NOTES:
1. Ratings are gross, and do not account for the effects of the
evaporator-fan motor power and heat.
2. Direct interpolation is permissible. Do not extrapolate.
3. SHC is based on 26.7 C db temperature of air entering the unit. At
any other temperature, correct the SHC read from the table of cool-
ing capacities as follows:
Corrected SHC
kW
= SHC + [1.23 x 10
–3
x(1–BF)x(C
db
– 26.7) x L/s]
Observe the rule of sign. Above 26.7 C, SHC correction will be posi-
tive; add it to SHC. Below 26.7 C, SHC correction will be negative;
subtract it from SHC.
4. Formulas:
Leaving wet bulb = wet bulb temperature corresponding to enthalpy
of air leaving coil (h
lwb
).
Where h
ewb
is enthalpy of air entering evaporator coil (kJ/kg).
50TFF014 (35.9 kW)
Temp (C)
Air Entering
Condenser
(Edb)
Air Entering Evaporator — L/s/BF
1500/0.132000/0.17 2350/0.21
Air Entering Evaporator — Ewb (C)
13 16 192213 16 192213 16 1922
20
TC 34.7 38.0 41.4 44.4 37.0 40.0 43.2 46.3 36.6 40.1 43.6 46.7
SHC 34.7 33.8 28.1 22.0 37.0 39.9 31.7 24.0 36.6 40.1 33.5 25.0
kW 8.92 8.99 9.08 9.13 9.00 9.06 9.13 9.22 9.05 9.10 9.15 9.25
24
TC 32.1 35.8 39.6 43.0 34.8 38.2 41.6 44.9 35.5 38.7 42.1 45.5
SHC 32.1 32.8 27.4 21.6 34.8 38.2 31.1 23.7 35.5 38.7 32.4 24.8
kW 9.34 9.46 9.60 9.70 9.47 9.57 9.68 9.80 9.60 9.63 9.74 9.84
28
TC 29.4 33.6 37.9 41.6 32.9 36.3 40.0 43.4 34.4 37.4 40.6 44.0
SHC 29.4 31.9 26.7 21.1 32.9 36.3 30.5 23.3 34.4 37.4 32.5 24.6
kW 9.78 9.94 10.12 10.27 9.95 10.08 10.22 10.39 10.15 10.10 10.25 10.42
32
TC 26.7 31.5 36.2 40.2 30.8 34.5 38.3 42.0 33.0 36.0 39.1 42.7
SHC 26.7 30.9 26.0 20.7 30.8 34.5 29.9 22.9 33.0 36.0 31.9 24.3
kW 10.20 10.42 10.64 10.85 10.40 10.59 10.76 10.96 10.49 10.65 10.82 11.01
35
TC 24.7 29.9 34.9 39.1 29.2 33.1 37.0 40.9 31.4 35.0 38.0 41.6
SHC 24.7 29.7 25.5 20.3 29.2 33.1 29.4 22.7 31.4 35.0 31.5 24.2
kW 10.52 10.80 11.03 11.30 10.77 11.00 11.18 11.40 10.40 11.07 11.25 11.47
40
TC 21.1 26.8 32.3 37.1 26.9 30.8 34.7 38.8 30.5 53.1 35.8 39.5
SHC 21.1 26.8 24.4 19.7 26.9 30.8 28.3 22.1 30.5 33.1 30.6 23.7
kW 11.10 11.40 11.71 12.00 11.42 11.64 11.88 12.13 11.64 11.79 11.96 12.20
44
TC 20.5 25.3 30.2 35.2 25.7 28.8 32.2 36.9 29.1 31.0 33.4 37.6
SHC 20.5 25.3 23.5 19.1 25.7 28.8 27.1 21.5 29.1 31.0 29.4 23.2
kW 11.62 11.93 12.25 12.58 12.05 12.24 12.44 12.73 12.26 12.38 12.52 12.79
48
TC 20.4 24.1 27.9 33.2 24.5 26.9 29.6 34.9 27.7 29.0 30.8 35.5
SHC 20.4 24.1 27.9 33.2 24.5 26.9 25.8 21.0 27.7 29.0 28.1 22.6
kW 12.15 12.45 12.78 13.17 12.68 12.84 13.00 13.33 12.88 12.97 13.10 13.39
52
TC 20.1 22.8 25.8 31.3 23.3 24.9 27.0 33.1 26.2 26.9 28.2 33.5
SHC 20.1 22.8 21.4 17.8 23.3 24.9 24.5 20.3 26.0 26.8 26.7 22.1
kW 12.67 12.98 13.31 13.75 13.34 13.43 13.56 13.93 13.49 13.57 13.67 13.97
BF — Bypass Factor
Edb — Entering Dry Bulb Temperature (C)
Ewb — Entering Wet Bulb Temperature (C)
kW — Compressor Input (kW)
SHC — Sensible Heat Capacity (kW)
TC — Total Capacity (kW)
C
ldb
=C
edb
–
SHC
kW
x 1000
1.23 x L/s
h
lwb
=h
ewb
–
TC
kW
x 1000
1.20 x L/s