—6—
COOLING CAPACITIES (MBtuh)
* Saturated suction leaving evaporator coil.
COIL REFRIGERANT TEMPERATURE* (°F)
UNIT
SIZE
EVAPORATOR
AIR
CFM and
BF
35 40 45 50 55
Evap Air—Entering Wet-Bulb Temp (°F)
72 67 62 72 67 62 72 67 62 72 67 62 72 67 62
018
400 27 23 19 25 20 16 22 17 13 19 14 10 15 10 8
0.08
13 14 15 12 13 13 10 11 12 9 10 10 8 8 8
500
30 25 21 28 22 18 24 19 15 21 15 12 16 11 10
0.10
14 16 17 13 14 16 12 13 14 10 11 12 9 10 10
600 33 27 22 30 24 19 26 21 16 23 17 13 18 12 11
0.13
15 17 19 14 16 18 13 14 16 11 13 13 10 11 11
650 34 28 23 31 25 20 27 21 17 23 17 14 18 13 12
0.14
16 18 20 14 17 18 13 15 16 12 13 14 10 11 12
024
600 38 32 26 35 29 22 31 24 18 26 19 14 21 13 12
0.05
18 20 21 16 18 19 15 16 17 13 14 14 11 11 12
700 41 34 28 38 30 24 33 26 20 28 20 16 22 15 13
0.06
19 21 23 18 19 21 16 18 19 14 15 16 12 13 13
875 46 38 31 41 34 27 37 29 22 31 23 19 25 17 16
0.08
21 24 27 20 22 24 18 20 22 16 18 19 14 15 16
030
750 46 38 31 41 33 26 36 28 21 30 22 17 24 16 14
0.04
21 23 25 19 21 22 17 19 20 15 16 17 12 13 14
900 50 42 34 46 37 29 40 31 23 33 25 19 26 18 16
0.06
23 26 28 21 23 25 19 21 22 17 18 19 14 15 16
1075 54 45 37 49 40 32 43 34 26 37 27 22 29 19 18
0.07
25 28 31 23 26 28 21 23 25 18 21 22 16 17 18
Sensible Heat Capacity (1000 Btuh)
Gross Cooling Capacity (1000 Btuh)
BF
—Bypass Factor
NOTES:
1. Net capacities shown include a deduction for evaporator fan motor heat.
2. Contact manufacturer for cooling capacities at conditions other than
shown in table.
3. Formulas:
Leaving db = entering db —
Leaving wb = wb corresponding to enthalpy of air leaving coil (h
lwb
)
h
lwb
= h
ewb
—
where h
ewb
= enthalpy of air entering coil.
4. Direct interpolation is permissible. Do not extrapolate.
5. SHC is based on 80°F db temperature of air entering coil. Below 80°F
subtract (corr factor x CFM) from SHC.
Above 80°F db, add (corr factor x CFM) to SHC.
SHC CORRECTION FACTOR
sensible heat cap.
1.09 x CFM
total capacity (Btuh)
4.5 x CFM
BYPASS
FACTOR
ENTERING AIR DRY-BULB TEMP (°F)
79 78 77 76 75 Under 75
81 82 83 84 85 Over 85
Correction Factor
0.10
0.20
0.30
0.98
0.87
0.76
1.96
1.74
1.53
2.94
2.62
2.29
3.92
3.49
3.05
4.91
4.36
3.82
Use formula
shown below
Interpolation is permissible.
Correction Factor = 1.09 x (1 – BF) x (db – 80)
OPTIONAL FIELD-INSTALLED ELECTRIC HEAT PACKAGES FOR FF1DNA AND FF1DNE
* Heater capacities shown here are for the largest size fan coil unit, and they do include blower motor heat.
HEATER PART NUMBER
WITH TDR
SIZE
USED
WITH
NOMINAL
KW @
240V
HEATER
VOLTS—PHASE
(60 Hz)
HEATER
CAPACITY
(MBH)*
APPROX
SHIP.
WEIGHT
(lbs)208V 230V
KFDEH0801D05 All 5 208/230—1 14.3 17.2 7
KFDEH0901D75 All 7.5 208/230—1 20.7 25.0 7
KFDEH1001D11 All 11 208/230—1 29.7 36.0 7