Specification Sheet

Specifications subject to change without notice.
518 71 2005 06
16
PERFORMANCE DATA (CONT) LEGEND BF — Bypass Factor edb — Entering Dry- Bulb Ewb — Entering Wet- Bulb kW — Total Unit Power Input SHC — Sensible Heat Capacity (1000 Btuh) TC — Total Capacity (1000 Btuh) (net) rh —Relative Humidity COOLING NOTES: 1. Ratings are net; they account for the effects of the evaporator- fan motor power and heat. 2. Direct interpolation is permissible. Do not extrapolate. 3. The following formulas may be used:
Sensible capacity (Btuh)
1.10 x CFM
t
ldb =
t
edb
-
Wet- bulb temperature corresponding to enthalpy air leaving evaporator coil (
h
lwb)
t
lwb =
total capacity
(Btuh)
h
lwb =
h
ewb -
4.5 x CFM
Where:
h
ewb = Enthalpy of air entering evaporator coil
4. The SHC is based on 80_F (26.6_C) edb temperature of air enter-
ing evaporator coil. Below 80_F (26.6_C) edb, subtract (corr factor
xCFM)fromSHC. Above 80_F (26.6_C) edb, add (corr factor x CFM) to SHC.
Correction Factor = 1.10 x (1 + BF) x (edb - 80). 5. Integrated capacity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it.
Multiplication Factors
HEA TER VOLT RA TING VOLTAGE DISTRIBUTION MULTIPLICATION FACTOR
240
200 208 230 240
0.69 0.75 0.92 1.00
480 460 0.92