Bryant Air Coold Split System 575B User Manual
Page 10
—
10
—
Duplex 575C120, 541A180 with 524A-H240 or 524A-H300
In order to properly connect two heat pump condensing
units to a single 524A-H packaged air handler, it is
necessary to add field-supplied Fan Coil Relay Board(s),
P/N 33ZCRLYBRD. Relay board(s) no. 1 and no. 2 should be
installed in the control box of condensing unit.
IMPORTANT: The common (COM) terminals from the fan
coil relay board(s) must be connected to the ‘C’ terminal in
condensing unit ‘A’.
Route thermostat cable or equivalent single leads of
no. 18 AWG (American wire Gage) colored wire from subbase
terminals through conduit in unit to low-voltage connections
as shown on unit wiring diagram and Fig. 12 and 13.
NOTE: For wire runs up to 50 ft, use no. 18 AWG insulated wire
(35 C minimum). For 51 to 75 ft, use no. 16 AWG insulated
wire (35 C minimum). For over 75 ft, use no. 14 AWG insulated
wire (35 C minimum). All wire larger than no. 18 AWG cannot
be directly connected to the thermostat and will require a junc-
tion box and a splice at the thermostat.
Table 7 — Electrical Data
LEGEND
*Units are suitable for use on electrical systems where voltage supplied
to the unit terminals is not below or above the listed limits.
NOTES:
1. The MCA and MOCP values are calculated in accordance with the
NEC, Article 440.
2. Motor RLA and LRA values are established in accordance with
Underwriters’ Laboratories (UL), Standard 1995.
3. The 575-v units are UL, Canada-listed only.
4. Convenience outlet is available as either a factory-installed option
or a field-installed accessory and is 115-v, 1 ph, 60 Hz.
UNIT
FACTORY-
INSTALLED
OPTION
NOMINAL VOLTAGE
(V-Ph-Hz)
VOLTAGE RANGE*
COMPRESSOR
FAN MOTORS
POWER SUPPLY
Min
Max
RLA
LRA
FLA
MCA
MOCP
575B
072
NONE
208/230-3-60
187
253
18.9
146
5.1
28.7
45
460-3-60
414
506
9.5
73
2.6
14.5
20
575-3-60
517
633
7.6
58
1.2
10.7
15
575C
090
NONE OR DISCONNECT
208/230-3-60
187
254
29.0
190
1.5
39.0
60
CONVENIENCE OUTLET
43.8
60
NONE OR DISCONNECT
460-3-60
418
506
15.0
95
0.7
19.8
30
CONVENIENCE OUTLET
21.9
30
120
NONE OR DISCONNECT
208/230-3-60
187
254
34.0
225
1.5
45.0
60
CONVENIENCE OUTLET
50.0
70
NONE OR DISCONNECT
460-3-60
418
506
17.0
114
0.7
23.0
30
CONVENIENCE OUTLET
25.0
30
NONE OR DISCONNECT
575-3-60
523
632
14.0
80
0.7
18.0
25
CONVENIENCE OUTLET
20.0
25
541A
180
NONE
208/230-3-60
187
253
63.6
266
4.3
87.5
125
460-3-60
414
528
29.3
120
2.3
40.7
60
575-3-60
518
660
23.8
96
1.8
33.0
50
FLA
— Full Load Amps
LRA
— Locked Rotor Amps
MCA
— Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
NEC
— National Electrical Code
RLA
— Rated Load Amps
Fig. 8 — Wiring Diagram — 575C090,120 —
Control Transformer