Appendix A - Technical Data
Quincy Compressor-QSI
®
125
QSI 500
Standard
Full Load Operating Pressure
psig
100
110
125
150
Maximum Operating Pressure
psig
115
125
140
165
Minimum Operating Pressure
psig
75
Maximum Ambient Operating Temperature:
Less Cabinet
°F
115
With Cabinet
°F
110
Minimum Ambient Operating Temperature
°F
32
Compressor Drive Motor
HP
100 125
Rotor Diameter
mm
255
Male Rotor Speed
rpm
1790 1785
Female Rotor Speed
rpm
1193 1190
Rotor Tip Speed
M/sec.
23.9
23.83
Inlet
Capacity
acfm
502 500 496 491
Displacement at Operating Speed
cfm
556.4
556.4
554.8
554.8
Volumetric Efficiency
%
90.2
89.9
89.4
88.5
Aftercooling
Heat Rejection:
Fluid Cooler
BTU/min.
3768
3966
4255
4785
Aftercooler
BTU/min.
792
Aftercooler Approach (standard conditions)
°F
3-5
Maximum Allowable Static Backpressure
in./H
2
O
0.125
Fan Motor
HP
5
Fan Motor
rpm
1740
Fan Flow
cfm
11000
Water-cooled Cooling
Recommended Inlet Water Pressure
psig
40-100
Vent Fan Motor
HP
1/9
Aftercooler Approach to Cooling:
Water Temperature
°F
13-18
Water Flow less Aftercooler at: 50°F
gpm
5.5
5.5
70°F gpm
7.7
8.9
90°F gpm
14.1
24.6
Water Flow with Aftercooler at: 50°F
gpm
7.3
7.3
70°F gpm
10.1
11.5
90°F gpm
17.9
29.5
Compressor Fluid
Total Fluid Capacity
gallons
23.5
Reservoir Fluid Capacity
gallons
20
Fluid Flow
gpm
38.4
Typical Fluid Carryover
ppm
1.5-5
Normal Airend Discharge Temperature
°F
175-195
Sound (at 1 meter)
Unenclosed (AC/WC)
dB(A)
87/86
Standard Cabinet (AC/WC)
dB(A)
83/80
Low Sound Cabinet (AC)
dB(A)
80
Summary of Contents for QSI Series
Page 2: ......
Page 7: ...Section I General Quincy Compressor QSI 5 MODEL IDENTIFICATION...
Page 62: ...Section IV Operating Procedures 60 Quincy Compressor QSI 1 Week Timer 2 Remaining Running Time...
Page 79: ...Section IV Operating Procedures Quincy Compressor QSI 77...