McQuay SWT C Series Installation And Maintenance Manual page 9

Figure 5. Condenser water pressure drop
SWT018C-028C
(60) 20
(45) 15
(30) 10
(27) 9
(24) 8
(21) 7
(18) 6
(15) 5
(12) 4
(9) 3
(6) 2
20 30 40
(1.2) (1.9) (2.5)
Water Flow Rate - gpm (L/s)
Note:
HP = total unit compressor horsepower
Figure 6. Condenser water pressure drop
SWT035C-040C
(60) 20
(45) 15
(30) 10
(27) 9
(24) 8
(21) 7
(18) 6
(15) 5
(12) 4
(9) 3
40 50 60
70
(2.5) (3.2) (3.8) (4.4)
Water Flow Rate - gpm (L/s)
Note:
HP = total unit compressor horsepower
IM709
50 60 70 90 100
80
(3.2) (3.8) (4.4) (5.7) (6.3)
(5.1)
80 90 100 150
(5.1) (5.7) (6.3) (9.5) (12.6)
Figure 7. Waterside economizer pressure drop
SWT018C-040C
(210) 70
(180) 60
(150) 50
(120) 40
(90) 30
(60) 20
(45) 15
(30) 10
(27) 9
(24) 8
(21) 7
(18) 6
(15) 5
(12) 4
(9) 3
(6) 2
20 30
150 (1.2) (1.9)
(9.5)
Note:
1. Includes coil, control valve and interconnecting piping.
2. Add this )P to condenser )P to obtain unit )P for pump selection.
Figure 8. Hot water coil pressure drop SWT035C-040C
(210) 70
(180) 60
(150) 50
(120) 40
(90) 30
(60) 20
(30) 10
(24) 8
(18) 6
(15) 5
(12) 4
(9) 3
20
(1.2) (1.9)
Note: Includes coil, control valve and interconnecting piping.
200
50 70 90
40 60 80 100
(5.7)
(3.2) (4.4)
(2.5) (3.8) (5.1) (6.3)
Water Flow Rate - gpm (L/s)
30
40 50 60 80
(3.2)
(2.5) (3.8) (5.1)
Water Flow Rate - gpm (L/s)
200
150
(12.6)
(9.5)
100 150
(9.5)
(6.3)
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