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1. OPERATING LIMITS
Maximum fan speed — 524A-B,C072-240 . . . . . . . .1200 rpm
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.
COIL
UNIT
TYPE
524A-B,C 072
3, 4 Row
524A-B,C 090
3, 4 Row
524A-B,C 120
3, 4 Row
524A-B 150
3 Row
524A-C 150
4 Row
524A-B 180
3 Row
524A-C 180
4 Row
524A-B 240
3 Row
524A-C 240
4 Row
524A-B 300
3 Row
524A-C 300
4 Row
*Danfoss part numbers shown.
†Sporlan Valve Co. part numbers shown.
UNIT SIZE 524A
208/230-1-60
Speed (rpm)
Hp
Frame (NEMA)
Shaft Dia (in.)
208/230-3-60 and 460-3-60
Speed (rpm)
Hp
Frame (NEMA)
Shaft Dia (in.)
575-3-60
Speed (rpm)
Hp
Frame (NEMA)
Shaft Dia (in.)
LEGEND
NEMA — National Electrical Manufacturers Association
APPLICATION DATA — 524A
FACTORY-INSTALLED NOZZLE AND DISTRIBUTOR DATA
TXV
Qty...Part No.*
1...TDEBX8
1...TDEBX8
2...TDEX6
2...TDEBX8
2...TDEBX8
2...TDEBX8
2...TDEBX8
2...TDEBX11
2...TDEBX11
2...TDEBX11
2...TDEBX11
FAN MOTOR DATA
STANDARD MOTOR
072
090
1725
1725
1.3
2.4
56Y
56Y
/
/
5
5
8
8
1725
1725
2.4
2.4
56Y
56Y
5
/
5
/
8
8
1725
1725
1.0
2.0
56
56HZ
5
/
7
/
8
8
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.
FEEDER TUBES
DISTRIBUTOR
PER DISTRIBUTOR
Qty...Part No.†
Qty...Size (in.)
1...1116
1...1126
2...1115
2...1115
2...1115
2...1116
2...1126
2...1116
2...1126
2...1126
2...1126
NOTE: Hot gas bypass applications require field-supplied auxiliary side
connector.
120
150
—
—
—
—
—
—
—
—
1725
1725
2.4
2.9
56Y
56Y
5
/
7
/
8
8
1725
1725
2.0
3.0
56HZ
56HZ
56HZ
7
/
7
/
8
8
79
NOZZLE
Qty...Part No.
12...
1
/
1...E5
4
15...
1
/
1...C6
4
9...
1
/
2...E4
4
9...
1
/
2...E5
4
12...
3
/
2...E5
16
12...
/
2...E6
1
4
16...
/
2...C6
1
4
13...
1
/
2...E8
4
18...
3
/
2...C8
16
15...
1
/
2...C10
4
20...
/
2...C15
3
16
180
240
—
—
—
—
—
—
—
—
1725
1745
3.7
5.0
56Y
S184T
7
/
1
1
/
8
8
1725
1745
3.0
5.0
184T
7
/
1
1
/
8
8
300
—
—
—
—
1745
7.5
S213T
1
3
/
8
1755
7.5
S213T
1
3
/
8
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