Payne PF1B, Manual

Page: 13 / 28

PERFORMANCE DATA (cont)
INDOOR UNIT FAN PERFORMANCE DATA — 1.4-2.4 ESP
UNIT
PF1B
AIRFLOW
(Cfm)
EXTERNAL STATIC PRESSURE (in. wg)
1.4 1.6 1.8 2.0 2.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
090
2,250 865 1.06 913 1.16 958 1.27 1001 1.37 1042 1.47
2,600 893 1.22 940 1.33 984 1.43 1027 1.54 1067 1.65
3,000 928 1.43 973 1.54 1017 1.65 1058 1.76 1098 1.87
3,400 965 1.66 1010 1.78 1052 1.89 1092 2.00 1131 2.12
3,750 1000 1.90 1043 2.02 1084 2.13 1124 2.25 1162 2.37
LEGEND
Bhp — Brake Horsepower Input to Fan
ESP — External Static Pressure
NOTES:
1. Maximum allowable fan speed is 1200 rpm.
2. Fan performance is based on deductions for wet coil, clean 2-in.
filters, and unit casing. See this page for factory-supplied filter pres-
sure drop.
INDOOR UNIT FIELD-SUPPLIED FILTER
PRESSURE DROP (in. wg)
UNIT
PF1B
AIRFLOW
(Cfm)
PRESSURE DROP
(in. wg)
090
2,250
3,000
3,750 0.07
0.11
0.15
ACCESSORY PLENUM AIR THROW DATA —
INDOOR UNITS (Ft)
UNIT
PF1B
AIRFLOW
(Cfm)
VANE DEFLECTION
Straight 22 1 ⁄
2
° 45°
090 3,000 45 38 28
NOTE: Throw distances shown are for 75 fpm terminal velocity. Use
the multipliers below to determine throw values for other terminal
velocities.
TERMINAL VELOCITY
(Fpm)
THROW FACTOR
50 X 1.50
100 X 0.75
150 X 0.50
ACCESSORY PRESSURE DROP — INDOOR UNIT
(in. wg)
UNIT
PF1B
AIRFLOW
(Cfm)
DISCHARGE
PLENUM
RETURN AIR
GRILLE
HEATING COILS
ECONOMIZER
Hot Water Steam Electric
090
2,250
3,000
3,750 0.09
0.14
0.21 0.01
0.02
0.03 0.15
0.23
0.35 0.15
0.23
0.35 0.06
0.10
0.15 0.06
0.09
0.15
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