—17—
PERFORMANCE DATA (CONT)
ECONOMIZER 1-IN. FILTER PRESSURE DROP (in. wg)
MULTIPLICATION FACTORS
Example: 15.0 kW (at 240v) heater on 208v
= 15.0 (.75 mult factor)
= 11.25 capacity at 208v
UNIT604B
PRESSURE DROP
024-036
0.20
042-060
0.25
HEATER kw
RATING
VOLTAGE
DISTRIBUTION V/3/60
MULTIPLICATION
FACTOR
240
200
208
230
240
.69
.75
.92
1.00
LEGEND
Ewb –
Entering Wet-Bulb
kW
–
Total Unit Power Input
SHC –
Sensible Heat Capacity (1000 Btuh)
TC
–
Total Capacity (1000 Btuh) (net)
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)
t
= t
ldb
edb
1.10 x cfm
t
= Wet-bulb temperature corresponding to enthalpy of air leaving
lwb
evaporator coil (h
)
lwb
total capacity (Btuh)
h
= h
lwb
ewb
4.5 x cfm
Where: h
= Enthalpy of air entering evaporator coil
ewb
BF –
Bypass Factor
4. The SHC is based on 80°F edb temperature of air entering evaporator
coil. Below 80°F edb, subtract (corr factor x cfm) from SHC.
Above 80°F 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.
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:
ELECTRIC HEAT PRESSURE DROP TABLES
SMALL CABINET: 024-036
*Not for use with 604B024
LARGE CABINET: 042-060
STATIC
CFM
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
5 kW
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.04
0.06
0.07
7.5 kW
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.03
0.05
0.07
0.08
0.09
10 kW
0.00
0.00
0.00
0.00
0.00
0.02
0.04
0.06
0.07
0.09
0.10
0.11
15 kW
*
0.00
0.00
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
STATIC
CFM
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
5 kW
0.00
0.00
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.12
7.5 kW
0.00
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.13
10 kW
0.00
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.13
15 kW
0.00
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.13
0.14
0.15
20 kW
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.13
0.14
0.15
0.16
LEGEND
BF
—Bypass Factor
Ewb
—Entering Wet-Bulb
kW
—Total Unit Power Input
SHC
—Sensible Heat Capacity (1000 Btuh)
TC
—Total Capacity (1000 Btuh) (net)
PSC
—Permanent Split Capacitor
Edb
—Entering Dry-Bulb
rh
—Relative Humidity
—Indicates Integrated Ratings
Содержание 604B
Страница 24: ...24 TYPICAL WIRING SCHEMATIC 230 1 60 SHOWN...
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