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Model Type
524J = Packaged Air Handler with
Puron
®
R-410A Refrigerant
Voltage
Nominal Tonnage
Type of Coil
Indoor Fan Motor Controller
2 = 2-Speed Motor Controller (VFD)
Not Used
Fig. 8 — Model Number Nomenclature Example, Bryant 524J-Series
MODEL SERIES
Position Number
F = R-410A Fan Coil Unit
A = Air Conditioning (Cooling Only)
S = Standard Efficiency
2 = Two Speed Indoor Fan Motor Controller (VFD)
A = Standard
Fig. 9 — Model Number Nomenclature Example, ICP FAS/FHS-Series
IMPORTANT: Do NOT change units equipped with the
VFD option to operate at less than the preset 66% minimum
Hz setting (40 Hz). For example, do not change a unit
equipped with a standard static motor to operate at less than
40 Hz (which is 66% of its 60 Hz rating).
Tables 4-28 list the minimum recommended CFM per fan
motor type (single speed or 2-speed) for the units covered in
this document.
1
2
3
4
5
6
7
8
5
2
4
J
E 1
2 A 2
F
A
S
1
2
3
Type
Efficiency
9
10 11 12 13 14 15 16 17
0
0 A 1
0 A A A
Unit Paint Options
Not Used
Indoor Fan Motor Options — Belt Drive
Coil Options
Not Used
0
9
1
M
A
4
5
6
7
8
Nominal Tonnage
Voltage
Fan Motor Options
6
Packaging
Not Used
A
A
2
A
9
10
11
12
Painted Cabinet Options
Future Use
Packaging
0
A
13
14
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