![background image](http://html1.mh-extra.com/html/carrier/performance-50vt/performance-50vt_product-data_2563574019.webp)
19
PERFORMANCE DATA (CONT)
Wet Coil Air Delivery 50VT036--060 -- Downflow Discharge -- High Speed
Unit
External Static Pressure (IN. W.C.)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
50VT036
CFM
1630
1593
1556
1526
1487
1442
1405
1365
1322
1288
50VT042
CFM
1630
1593
1556
1526
1487
1442
1405
1365
1322
1288
50VT048
CFM
2286
2222
2144
2068
1986
1905
1820
1737
1635
1531
50VT060
CFM
2113
2049
1979
1911
1840
1771
1681
1614
1524
1418
* Air delivery values are without air filter and are for wet coil.
Note: Deduct field---supplied air filter pressure drop to obtain external static pressure available for ducting.
Economizer 1--in. Filter Pressure Drop (in. wc)
UNIT50VT
PRESSURE DROP
024--030
0.20
036--060
0.25
Multiplication Factors
HEATER kW RATING
VOLTAGE DISTRIBUTION
MULTIPLICATION FACTOR
240
480
200
208
230
240
460
0.69
0.75
0.92
1.00
0.92
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)
4.5 x cfm
h
lwb =
h
ewb ---
Where:
h
ewb = Enthalpy of air entering evaporator coil
4. The SHC is based on 80
5
F (26.6
_
C) edb temperature of air entering evapo-
rator coil. Below 80
5
F (26.6
_
C) edb, subtract (corr factor x cfm) from SHC.
Above 80
5
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.
Electric Heat Pressure Drop Table
Small Cabinet: 024--030 cfm
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
5kw
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
20 kw
0.00
0.00
0.02
0.04
0.06
0.08
0.09
0.11
0.13
0.15
0.17
0.19
Electric Heat Pressure Drop Table (in. wc)
Large Cabinet 036--060 cfm
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
5kw
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
50VT Wet Coil Pressure Drop
Unit
Size
Standard CFM (S.C.F.M)
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
024
0.06
0.07
0.08
0.09
0.10
030
0.12
0.15
0.19
0.23
0.27
036
0.07
0.11
0.18
0.26
0.35
042
0.04
0.07
0.10
0.15
0.21
048
0.11
0.14
0.17
0.22
0.28
060
0.10
0.17
0.23
0.31
0.36
50V
T