MFG. #5401162 - REV C-1
12/10
PRINTED IN USA
PAGE 3 OF 8
MODEL PS10 (VDS)
PRESSURE SWITCH
POSITIVE DC
OR HOT AC
BELL
NEGATIVE DC
OR NEUTRAL AC
LINE
LOAD
Local Bell For Waterflow Connection
Break out thin section of divider to provide path for wires when wiring both
switches from one conduit entrance.
One Conduit Wiring
Fig. 6
Fig. 7
Fig. 9
Removing Knockouts
W/ PRESSURE APPLIED
W/O PRESSURE APPLIED
C
C 1 2
C
C 1 2
Switch Operation
Fig. 8
• Installation must be performed by qualified personnel and in accordance with all
national and local codes and ordinances.
• Shock hazard. Disconnect power source before servicing. Serious injury or death
could result.
• Read all instructions carefully and understand them before starting installation. Save
instructions for future use. Failure to read and understand instructions could result
in improper operation of device resulting in serious injury or death.
• Risk of explosion. Not for use is hazardous locations. Serious injury or death could result.
• Do not tighten by grasping the switch enclosure. Use wrenching flats on the
bushing only. Failure to install properly could damage the switch and cause
improper operation resulting in damage to equipment and property.
• To seal threads, apply Teflon tape to male threads only. Using joint compounds or
cement can obstruct the pressure port inlet and result in improper device operation
and damage to equipment.
• Do not over tighten the device, standard piping practices apply.
Terminal
C: Common
1: Closed when installed under
normal system pressure.
2: Open when installed under
normal system pressure. Closes
on pressure drop. Use for low
pressure supervision.
Terminal
1: Open with no pressure supplied.
Closes upon detection of
pressure. Use for waterflow
indication.
2: Closed with no pressure applied.
