Specs

13
PERFORMANCE DATA (cont.)
GROSS COOLING CAPACITIES (MBH) -- PURONR REFRIGERANT
FB4C
060
1600
72 / 22 106 54 0.00 95 49 0.00 82 43 0.01 69 37 0.03 54 31 0.04
67 / 19 86 56 0.04 75 50 0.04 63 44 0.04 49 37 0.04 35 31 0.05
62 / 17 68 56 0.04 57 50 0.04 45 44 0.05 36 36 0.12 29 29 0.28
1750
72 / 22 113 58 0.00 101 52 0.00 88 46 0.02 74 39 0.04 58 33 0.04
67 / 19 92 59 0.04 80 53 0.05 67 47 0.05 53 40 0.05 37 33 0.05
62 / 17 73 61 0.05 61 54 0.05 49 48 0.06 39 39 0.13 32 32 0.28
2000
72 / 22 124 64 0.00 111 57 0.00 97 50 0.04 81 43 0.05 63 36 0.06
67 / 19 101 66 0.06 88 59 0.06 74 52 0.06 58 44 0.06 41 37 0.07
62 / 17 80 67 0.06 67 60 0.06 53 53 0.07 43 43 0.16 35 35 0.30
FB4C
061
1600
72 / 22 109 57 0.00 98 51 0.00 86 45 0.00 73 39 0.01 58 32 0.02
67 / 19 89 58 0.02 78 52 0.02 66 46 0.02 52 39 0.03 37 33 0.03
62 / 17 71 59 0.03 60 52 0.03 48 46 0.03 37 37 0.09 31 31 0.24
1750
72 / 22 117 61 0.00 105 55 0.00 92 48 0.01 78 41 0.02 62 35 0.02
67 / 19 95 62 0.03 84 56 0.03 70 49 0.03 56 42 0.03 40 35 0.03
62 / 17 76 63 0.03 64 56 0.03 51 50 0.04 40 40 0.10 33 33 0.25
2000
72 / 22 129 67 0.00 116 60 0.00 102 53 0.02 86 46 0.03 68 38 0.03
67 / 19 105 69 0.04 92 62 0.04 78 54 0.04 62 47 0.04 44 39 0.05
62 / 17 84 70 0.04 71 63 0.04 57 55 0.05 45 45 0.12 37 37 0.27
CFM --- C u b i c F t p e r M i n u t e EWB --- Entering Wet Bulb _F(_C) LWB --- L e a v i n g W e t B u l b _F(_C) TC --- Gross Cooling Capacity 1000 Btuh
SHC --- Gross Sensible Capacity 1000 B tuh BF --- B y p a s s F a ct o r MBH --- 1000 Btuh
NOTES:
1. Contact manufacturer for cooling capacities at conditions
other than shown in table.
2. Formulas:
Leaving db = entering db --sensible heat cap.
1.09 x CFM
Leaving wb = wb corresponding to enthalpy of air leaving
coil (h
lwb
)
h
lwb
=h
ewb
--total capacity (Btuh)
4.5xCFM
where h
ewb
= enthalpy of air entering coil. Direct interpola-
tion is permissible. Do not extrapolate.
3. SHC is based on 80_F(27_C) db temperature of air enter-
ing coil. Below 80_F(27_C) db, subtract (Correction Factor
x CFM) from SHC. Above 80_F(27_C) db, add (Correc-
tionFactorxCFM)toSHC.
4. Bypass Factor = 0 indicates no psychometric solution. Use
bypass factor of next lower EWB for approximation.
SHC CORRECTION FACTOR
BYPASS
FACTOR
ENTERING AIR DRY--BULB T EMPERAT URE (_F)
79 78 77 76 75 Under 75
81 82 83 84 85 Over 85
ENTERING AIR DRY--BULB T EMPERAT URE (_C)
26 25 25 24 24 Under 75
27 28 28 29 29 Over 85
Correction Factor
0.10 .098 1.96 2.94 3.92 4.91
Use
formula
shown
below
0.20 0.87 1.74 2.62 3.49 4.36
0.30 0.76 1.53 2.29 3.05 3.82
Interpolation is permissible.
Correction Factor = 1.09 x (1 --- BF) x (db --- 80)
FB4C AIR DELIVERY PERFORMANCE CORRECTION COMPONENT PRESSURE DROP (in wc) AT
INDICATED AIRFLOW (DRY TO WET COIL)
UNIT SIZE
CFM
500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
018 0.034 0.049 0.063
-- -- -- -- -- -- -- -- -- -- -- -- --
024 0.034 0.049 0.063 0.076 0.089
-- -- -- -- -- -- -- -- -- -- --
025 0.015 0.026 0.038 0.049 0.059
-- -- -- -- -- -- -- -- -- -- --
030
-- -- --
0.049 0.059 0.070 0.080
-- -- -- -- -- -- -- -- --
036
-- -- -- -- --
0.070 0.080 0.090 0.099
-- -- -- -- -- -- --
042
-- -- -- -- -- -- --
0.049 0.056 0.063 0.070
-- -- -- -- --
048
-- -- -- -- -- -- -- -- --
0.063 0.070 0.076 0.083 0.090
-- --
060
-- -- -- -- -- -- -- -- -- -- --
0.049 0.054 0.059 0.065 0.070
061
-- -- -- -- -- -- -- -- -- -- --
0.027 0.031 0.035 0.039 0.043