Carrier 50JZ Product Data page 17

Performance data (cont)
HEATER kw
RATING
240
480
Example: 15.0 kw (at 240v) heater on 208v
= 15.0 (.75 mult factor)
= 11.25 capacity at 208v
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
STATIC
500 600
5 Kw 0.00 0.00
7.5 Kw 0.00 0.00
10 Kw 0.00 0.00
15 Kw* 0.00 0.00
*Not for use with 50JZ024
STATIC
1100 1200 1300
5 Kw 0.00 0.00 0.00
7.5 Kw 0.00 0.00 0.01
10 Kw 0.00 0.00 0.01
15 Kw 0.00 0.02 0.03
20 Kw 0.02 0.03 0.04
ECONOMIZER 1-in. FILTER PRESSURE DROP (in. wg)
UNIT50JZ
024-036
042-060
MULTIPLICATION FACTORS
ELECTRIC HEAT PRESSURE DROP TABLES
Small Cabinet: 024-036
700 800 900
0.00 0.00 0.00
0.00 0.00 0.00
0.00 0.00 0.00
0.00 0.02 0.04
Large Cabinet: 042-060
1400 1500 1600
0.01 0.02 0.03
0.02 0.03 0.04
0.02 0.03 0.04
0.04 0.05 0.06
0.05 0.06 0.07
VOLTAGE
DISTRIBUTION V/3/60
200
208
230
240
440
460
480
LEGEND
Ewb – Entering Wet-Bulb
kW – Total Unit Power Input
NOTES:
SHC – Sensible Heat Capacity (1000 Btuh)
TC – Total Capacity (1000 Btuh) (net)
1. Ratings are net; they account for the effects
of the evaporator-fan motor power and heat.
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.
2. Direct interpolation is permissible. Do not extrapolate.
3. The following formulas may be used:
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
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.
CFM
1000 1100 1200
0.00 0.00 0.00
0.00 0.02 0.03
0.02 0.04 0.06
0.06 0.08 0.10
CFM
1700 1800 1900 2000
0.04 0.05 0.06 0.07
0.05 0.06 0.07 0.08
0.05 0.06 0.07 0.08
0.07 0.08 0.09 0.10
0.08 0.09 0.10 0.11
PRESSURE DROP
0.20
0.25
MULTIPLICATION
FACTOR
.69
.75
.92
1.00
.84
.92
1.00
)
1300 1400 1500
0.02 0.04 0.06
0.05 0.07 0.08
0.07 0.09 0.10
0.12 0.14 0.16
2100 2200 2300
0.08 0.09 0.10
0.09 0.10 0.11
0.09 0.10 0.11
0.11 0.12 0.13
0.12 0.13 0.14
1600
0.07
0.09
0.11
0.18
2400 2500
0.11 0.12
0.12 0.13
0.12 0.13
0.14 0.15
0.15 0.16
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