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VOLTAGE LIMITATIONS
The following voltage limitations are absolute and op-
eration beyond these limits may cause serious dam-
age to the compressor.
UNIT POWER
200-3-60
230-3-60
460-3-60
575-3-60
MODEL YCU
NOMINAL TONS
NO. OF REFRIG. CIRCUITS
COMPRESSOR MODEL
(COMPRESSOR HP)
UNIT CAPACITY CONTROL
CONDENSER – DWP 450 PSIG
NO. OF FANS (42" Dia. Direct Drive)
HP/KW Each
CFM Total
OPERATING/SHIPPING
WEIGHT (LBS.)
HOLDING REFRIG. CHARGE
(LBS. R-22)
OPER. REFRIG. CHARGE
(LBS. R-22)
PUMP DOWN CAPACITY
YORK INTERNATIONAL
OPERATIONAL LIMITATIONS
MIN.
MAX.
180
220
207
253
414
506
517
633
PHYSICAL DATA
Z330A3
58
2
(2) ZB4K-B
(40 HP)
4 Steps
2
850 RPM
3 / 3.7
32,400
Alum. Fins
3,900
Copper Fins
4,500
Sys. 1
12
Sys. 2
12
Sys. 1
32
Sys. 2
32
Sys. 1
56
Sys. 2
56
TEMPERATURE RANGE
SUCTION TEMP.
MODEL
(°F)
YCU
MIN.
1
MAX.
Z330A3
35
Z440A3
35
Z740B3
35
Z770B3
35
Z880B3
35
NOTES:
1. For lower or higher suction temperature applications, contact your
YORK representative.
2. Operation below 25°F requires the Optional Low Ambient kit.
3. Operation above 116°F requires Optional High Ambient kit.
Z440A3
Z740B3
66
75
2
2
(2)ZB4M-C
(1)ZB6S-D
(50 HP)
(60 HP)
(1)ZB4M-C
(50 HP)
4 Steps
5 Steps
2
2
3 / 3.7
3 / 3.7
32,400
36,100
3,950
4,400
4,550
5,250
12
12
12
12
32
38
32
32
85
85
85
85
FORM 195.26-NM3
AIR ON CONDENSER
(°F)
MIN.
2
MAX.
3
55
0
130
55
0
130
55
0
130
55
0
130
55
0
130
Z770B3
Z880B3
82
92
2
2
(2)ZB6S-D
(2)ZB6W-E
(60 HP)
(70 HP)
6 Steps
6 Steps
2
2
3 / 3.7
3 / 3.7
36,100
36,100
4,550
4,600
5,400
5,450
12
12
12
12
42
49
42
49
85
85
85
85
7
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