Technical information

Overhead piping installations above process connections
require installing a check valve in the To Process line and a 12
inch (305 mm) riser with check valve and vacuum break in
the From Process line to prevent siphoning when shutting
down. Install a vent tube to 12 inches (305 mm) above the
highest system point to prevent over pressurization. Maximum
height of piping above process connections is 10 ft (3 m).
OVERHEAD
PLUMBING
DETAILS
UGH024/1103r Portable Chillers
APPENDIX
D-1
Condenser
Water inlet
(water-cooled only)
To Process valve
Condenser
Water outlet
(water-cooled only)
back view
internal vent; 1 ft above
highest water level
vacuum break
check valve
12 in. riser
From Process valve