Carrier 50ZH Series - Pressure Drop Data; Wet Coil Pressure Drop; Filter Pressure Drop; Accessory Electric Heat Pressure Drop

15
50ZH
WET COIL PRESSURE DROP
FILTER PRESSURE DROP (in. wg)
ACCESSORY ELECTRIC HEAT PRESSURE DROP (in. wg)
UNIT SIZE
50ZH
AIRFLOW
(cfm)
PRESSURE DROP
(in. wg)
030
900 0.06
1000 0.06
1200 0.08
036
1000 0.04
1200 0.05
1400 0.07
1600 0.08
042
1000 0.04
1200 0.06
1400 0.08
1600 0.09
048
1400 0.07
1600 0.08
1800 0.09
060
1700 0.07
1800 0.08
2100 0.09
2300 0.10
UNIT
SIZE
50ZH
FILTER
SIZE
(in.)
CFM
500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
030-042 24 x 24 0.06 0.07 0.08 0.08 0.09 0.09 0.09 0.10 0.11 0.12 0.14 0.15 ———————
048, 060 24 x 30 — — — — — — — — 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18
HEATER
kW
CFM
600 800 1000 1200 1400 1600 1800 2000 2200
5-20 0.06 0.08 0.10 0.13 0.15 0.18 0.20 0.23 0.25
LEGEND
BF — Bypass Factor
edb — Entering Dry-Bulb
Ewb — Entering Wet-Bulb
kW — Total Unit Power Input
Idb — Leaving Dry-Bulb
Iwb — Leaving Wet-Bulb
SHC — Sensible Heat Capacity (1000 Btuh) Net
TC — Total Capacity (1000 Btuh) Net
*At 75°F entering dry bulb (Tennessee Valley Authority [TVA] rating
conditions); all others at 80°F entering dry bulb.
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
t
ldb
= t
edb
–
t
lwb
= Wet-bulb temperature corresponding to enthalpy of leaving
indoor coil (h
lwb
)
h
lwb
= h
ewb
–
Where: h
ewb
= Enthalpy of air entering evaporator coil
3. The sensible heat capacity is based on 80°F edb temperature of air
entering indoor coil.
Below 80°F edb, subtract (corr factor x cfm) from the sensible heat
capacity.
Above 80°F edb, add (corr factor x cfm) to the sensible heat capacity.
Correction Factor = 1.10 x (1–BF) x (edb – 80).
sensible capacity (Btuh)
1.10 x cfm
total capacity (Btuh)
4.5 x cfm