Water Connection - Raytheon UY75 Installation And Maintenance Manual

Installation

Water Connection

Individual hot and cold plumbing lines with
individual shut-off valves must be available to
the machine. Best performance will be realized
if water is provided at a pressure of 30–85 psi.
Although the machine will function properly at
lower pressure, increased fill times will occur.
Flush the water system for at least
2 minutes.
Hang the hoses in a large loop; do not allow
them to kink.
The hose connections should be supplied by a
hot and a cold water line of at least the sizes
shown in the adjacent table. Installation of
additional machines will require
proportionately larger water lines. See the
adjacent table.
Suitable air cushions should be installed in
supply lines to prevent "hammering." If the
water pressure is above 60 psi, flexible copper
tubing should be used in place of rubber hoses.
An additional water supply line must be
provided for the 3/4" NHT (19 mm) supply
tank flush inlet.
2–24
Water Supply Information
Water inlet connection size, in/mm 3/4 NHT / 19
Number of water inlets
Supply Dispenser flush inlet size
Recommended water pressure,
psi/bar
Functioning limits, psi/bar
Inlet flow capacity,
gal-min/l-min (80psi)
Water Supply Line Sizing
Supply Line Size, in/mm
Number of
Machines
Main
1 0.75 / 19
2 1.0 / 25
3 1.25 / 32
4 1.5 / 38
3
3/4 NHT / 19
30-85 /
2-6
10-120 /
0.5-8
12 / 45
Hot/Cold
0.75 / 19
0.75 / 19
1.0 / 25
1.0 / 25
F232048