McQuay SWP Series Installation And Maintenance Manual page 7

Figure 8: Water Regulating Valve Pressure Drop, Head
Pressure Control
40
10
1
0.1
10
Condenser Flow Rate (gpm)
Figure 9: Hot Water Coil Pressure Drop, SWP 018 to 040
100
10
1
10
Water Flow Rate (gpm)
McQuay IM 937
100
500
200
100
Figure 10: Hot Water Coil Pressure Drop, SWP 045 to 105
100
10
1
10
Condensate Drain Connection
The condensate drain connection is 1 1/8" O.D.S. copper and
is located on the same end of the unit as the condenser water
connections. The drain is internally trapped at the factory,
requiring no external trap. Pitch the condensate line away from
the unit with a minimum slope of 1/8" per foot.
Keep drain pans and the drain trap clean by periodic cleaning.
A cleanout is provided as standard in the trap to aid in
cleaning.
Installation
100
Water Flow Rate (gpm)
200
7