HyPrecision 50S/60S/75S Operator Manual 808690 195
9 – Installation
Installation
1. Remove the caps and the covers from the fittings on the utility panel.
2. Connect the water lines.
WASTEWATER 
OUT
3/4-inch NPT male 
connector
This line carries water from the bleed-down valve and the 
low-pressure system to a drain.
Install the wastewater plumbing so that it is lower than the 
fitting on the pump to prevent contaminated water from 
entering the bleed-down valve.
Use a flexible hose instead of a pipe to make troubleshooting 
easier. 
CUTTING WATER 
IN
3/4-inch NPT male 
connector
Connect this line to the supply water.
If the supply water is treated by reverse osmosis, the boost 
pump settings can require adjustment. Contact a Hypertherm 
Technical Service Associate for assistance.
COOLING IN
Water-cooled 
system
1-inch NPT male 
connector
 Connect this line to the supply water supply or to the chiller.
Public utility water is usually sufficient. If the public utility water 
has a high mineral content, prefiltering or softening might be 
necessary to prevent deposits from clogging the plates or 
tubes in the heat exchanger. Refer to the Water quality. 
section, which begins on page 188.
Air-cooled system
-16 JIC female 
connector
Connect this hose to the top fitting on the external air cooler. 
This hose carries hydraulic fluid.
Air-cooled systems are shipped with caps on the COOLING 
IN and COOLING OUT connectors. Remove these caps 
before connecting the pump to the external air cooler. 
COOLING OUT
Water-cooled 
system
1-inch NPT male 
connector
Connect this line to the drain or to the chiller return.
Air-cooled system
-16 JIC female 
connector
Connect this hose to the bottom fitting on the external air 
cooler. This hose carries hydraulic fluid. 
The connection on the heat exchanger is usually marked INLET.
Air-cooled systems are shipped with caps on the COOLING 
IN and COOLING OUT connectors. Remove these caps 
before connecting the pump to the external air cooler. 
CUTTING WATER 
OUT
3/8-inch 
high-pressure 
female connector
Connect a high-pressure plumbing line from this fitting to the 
waterjet cutting table.