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PERFORMANCE DATA (cont)
BELT DRIVE EVAPORATOR FAN PERFORMANCE
(Special Order Only, Pricing and
ordering on related price pages.)
LEGEND
NOTE:
Pulley setting must be adjusted to limit cfm to 450 cfm/ton
maximum.
Unit operation beyond that limit may result in blow-off and
condensate problems.
CONDENSER FAN PERFORMANCE
LEGEND
kW —
Total Fan Motor Power Input (kilowatts)
NOTES:
1. Above fan performance is based upon coil and deducted casing
losses only.
2. External static pressure (ESP) is measured in inches water gage
(in. wg).
3. Interpolation is permissible. Do not extrapolate.
4. Condenser fan on unit size 024 only, is direct drive.
5. Minimum one turn open of motor pulley is required on unit sizes 036
and 060.
6. Number of turns open applies to field setting of motor pulley.
7. Factory setting as follows: 036, 4 turns open; 048, 2 turns open; 060,
5 turns open.
CFM
UNIT SIZE — 502A
048 060
ESP Fan kW ESP Fan kW
1800
————
1850
————
1900
————
1950
.81 1.03 ——
2000
.72 1.05 ——
2050
.63 1.07 ——
2100
.55 1.08 1.02 1.17
2150
.47 1.11 .93 1.21
2200
.42 1.14 .84 1.24
2250
.34 1.17 .75 1.27
ESP —
External Static Pressure (in. wg)
kW —
Total Fan Power Motor Input (kilowatts)
UNIT
502A
COND
CFM
EXTERNAL STATIC PRESSURE (in. wg)
0.0 0.1 0.2 0.3 0.4 0.5 0.6
Turns kW Turns kW Turns kW Turns kW Turns kW Turns kW Turns kW
024
1525 Note 4 .66 ————————————
1475 ——Note 4 .64 ——————————
1400 ————Note 4 .63 ————————
1350 ——————Note 4 .62 ——————
1300 ————————Note 4 .62 ————
036
1650 2 .84 ————————————
1600 ——2.82——————————
1550 ————2.80————————
1500 3 .72 ————2.781.84————
1450 4 .63 3 .70 ————2 .76 1 .83 ——
1400 ——4.613.68——————1.81
1350 5 .51 ————3.67—— 2.73——
1300 ——5.504.57——3.65—— 2.71
048
2700 2 .90 ————————————
2600 ——2.87——————————
2550 3 .81 ————————————
2450 ——3.772.831.89——————
2350 ——————2.801.86————
2300 4 .68 ——3.74———— 0.90——
2200 ——4.66————2 .77 1 .82 0 .86
060
3100 3 1.34 ————————————
3000 ——31.32——————————
2900 ——————21.39——————
2850 4 1.11 —— 31.24————————
2750 ——41.07————21.32————
2700 ——————31.17——————
2650 ————————————11.37
2600 5 .95 ——41.01————21.26——
2550 ————————31.12————
2500 ——5.92——————————
2450 ——————4.97———— 21.21
2400 ————5.90———— 31.08——