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APPLICATION DATA — 524A
1. OPERATING LIMITS
Maximum fan speed — 524A-B,C072-240 . . . . . . . .1200rpm
Maximum fan speed — 524A-B,C300 . . .1100 rpm (18.3 r/s)
2. GENERAL — Select equipment to match or to be slightly
less than peak load. This provides better humidity control,
less unit cycling, and less part-load operation. Equipment
should be selected to perform at no less than 300 cfm/ton.
The air handler fan must always be operating when the con-
densing unit is operating.
Ductwork should be sized according to unit size, not build-
ing load. For larger units with two fans, a split duct transition
is recommended at the fan outlets, but a plenum can
be used with slight reduction in external static pressure
capability.
FACTORY-INSTALLED NOZZLE AND DISTRIBUTOR DATA
*Danfoss part numbers shown.
†Sporlan Valve Co. part numbers shown.
NOTE: Hot gas bypass applications require field-supplied auxiliary side
connector.
FAN MOTOR DATA
STANDARD MOTOR
LEGEND
NEMA — National Electrical Manufacturers Association
UNIT
COIL
TYPE
TXV
Qty...Part No.*
DISTRIBUTOR
Qty...Part No.†
FEEDER TUBES
PER DISTRIBUTOR
Qty...Size (in.)
NOZZLE
Qty...Part No.
524A-B,C 072 3, 4 Row 1...TDEBX8 1...1116 12...
1
/
4
1...E5
524A-B,C 090 3, 4 Row 1...TDEBX8 1...1126 15...
1
/
4
1...C6
524A-B,C 120 3, 4 Row 2...TDEX6 2...1115 9...
1
/
4
2...E4
524A-B 150 3 Row 2...TDEBX8 2...1115 9...
1
/
4
2...E5
524A-C 150 4 Row 2...TDEBX8 2...1115 12...
3
/
16
2...E5
524A-B 180 3 Row 2...TDEBX8 2...1116 12...
1
/
4
2...E6
524A-C 180 4 Row 2...TDEBX8 2...1126 16...
1
/
4
2...C6
524A-B 240 3 Row 2...TDEBX11 2...1116 13...
1
/
4
2...E8
524A-C 240 4 Row 2...TDEBX11 2...1126 18...
3
/
16
2...C8
524A-B 300 3 Row 2...TDEBX11 2...1126 15...
1
/
4
2...C10
524A-C 300 4 Row 2...TDEBX11 2...1126 20...
3
/
16
2...C15
UNIT SIZE 524A 072 090 120 150 180 240 300
208/230-1-60
Speed (rpm) 1725 1725 — — — — —
Hp 1.3 2.4 — — — — —
Frame (NEMA) 56Y 56Y — — — — —
ShaftDia(in.)
5
/
8
5
/
8
——— — —
208/230-3-60 and 460-3-60
Speed (rpm) 1725 1725 1725 1725 1725 1745 1745
Hp 2.4 2.4 2.4 2.9 3.7 5.0 7.5
Frame (NEMA) 56Y 56Y 56Y 56Y 56Y S184T S213T
ShaftDia(in.)
5
/
8
5
/
8
5
/
8
7
/
8
7
/
8
1
1
/
8
1
3
/
8
575-3-60
Speed (rpm) 1725 1725 1725 1725 1725 1745 1755
Hp 1.0 2.0 2.0 3.0 3.0 5.0 7.5
Frame (NEMA) 56 56HZ 56HZ 56HZ 56HZ 184T S213T
ShaftDia(in.)
5
/
8
7
/
8
7
/
8
7
/
8
7
/
8
1
1
/
8
1
3
/
8
50TFQ004-012
524A072-300