23
ENGINEERING DATA TABLE: MODELS 300-750
Air System Data
Rated Flow Capacity at 100°F, 100 psig Inlet, 100°F Ambient Temperature
300
400
500
600
750
Maximum / Minimum Inlet Air Pressure (compressed air at inlet to dryer)
232 psig (16 barg) / 30 psig (2 barg)
Maximum / Minimum Inlet Air Temperature (compressed air at inlet to dryer)
120°F (49°C) / 40°F (4°C)
Maximum / Minimum Ambient Temperature
Air-cooled: 110°F (43°C) / 40°F (4°C), Water-cooled: 130°F (54°C) / 40°F (4°C)
Outlet Air Temperature (nominal at rated conditions)
85°F (29°C)
Refrigeration System Data
Refrigeration Capacity @ 35°F Evaporator & 100°F Ambient (BTU/hr)
60 Hz
15200
19200
22000
30500
50 Hz
12700
16000
18300
25400
Refrigerant Type
R-134A
Refrigerant Charge
See Data Tag on Dryer
Suction Pressure Setting - Hot Gas Bypass Valve (psig)
30.5 psig (2.1 barg)
Compressor Control Ranges (out-in)
High
281 - 190 psig (19.4 - 13.1 barg)
Low
22 - 34 psig (1.5 - 2.3 barg)
Air-Cooled Condensers
Air Flow Across Condenser (cfm) (air-cooled models)
60 Hz
1070
2470
1680
2170
50 Hz
890
2060
1400
1810
Condenser Fan Switch Setting (in-out)
Fan 1
113 - 78 psig (7.8 - 5.4 barg)
Fan 2
N/A
183 - 124 psig (12.6 - 8.6 barg)
Water-Cooled Condensers
Water Regulating Valve Setting
135 psig (9.3 barg)
Required Available Water Pressure Differential
40 psig (2.8 barg) - minimum
Flow Required with 85°F Cooling Water (gallons per minute)
60 Hz
2.0
2.1
4.9
6.8
50 Hz
1.7
1.8
4.1
5.6
Electrical Data
Nominal Voltage
208-230/3/60
Min. - Max. Voltage
187 - 253
Input Power @ Rated Flow (watts)
1999
2031
2680
2910
4120
Rated Load Amps**
10.4
11.4
13.9
22.1
Locked Rotor Amps**
66.0
75.0
88.0
115.0
Minimum Circuit Ampacity
15.9
20.0
19.7
30.4
Branch Circuit Fuse Size (amps)
20
25
30
45
Resistance (ohms)
1.3
1.1
1.0
0.7
Nominal Voltage
460/3/60
Min. - Max. Voltage
414 - 506
Input Power @ Rated Flow (watts)
1999
2031
2680
2910
4120
Rated Load Amps**
4.7
5.1
7.1
9.6
Locked Rotor Amps**
33.0
40.0
44.0
63.0
Minimum Circuit Ampacity
7.5
9.6
10.4
15.2
Branch Circuit Fuse Size (amps)
15
15
15
20
Resistance (ohms) Main/Start
5.0
4.1
4.0
2.7
Nominal Voltage
575/3/60
Min. - Max. Voltage
518 - 633
Input Power @ Rated Flow (watts)
1999
2031
2680
2910
4120
Rated Load Amps
4.7
5.1
7.1
9.6
Locked Rotor Amps
33.0
40.0
44.0
63.0
Minimum Circuit Ampacity
6.0
7.7
8.3
12.2
Branch Circuit Fuse Size (amps)
15
15
15
20
Resistance (ohms)
5.0
4.1
4.0
2.7
Nominal Voltage
380-420/3/50
Min. - Max. Voltage
342 - 462
Input Power @ Rated Flow (watts)
1622
1667
1992
2040
2860
Rated Load Amps**
4.7
5.1
7.1
9.6
Locked Rotor Amps**
33.0
40.0
44.0
63.0
Minimum Circuit Ampacity
7.5
8.1
10.4
15.2
Branch Circuit Fuse Size (amps)
15
15
15
20
Resistance (ohms)
5.0
4.1
4.0
2.7
* For 60 Hz, 35°F Evaporator, 100°F Ambient; for 50Hz, 35°F Evaporator, 77°F Ambient
** Compressor Only
