Specifications, Applications,
Service Instructions & Parts
VPIF
VALVE POSITION INDICATOR
Bulletin VPIFb
FEB 2008
for use with
Sealed Motor Valves
VPIF
INTRODUCTION
The Valve Position Indicator, model VPIF, is a digital
monitoring module for use with Sealed Motor Valves
(SMV ). The VPIF displays the valve position during
normal (automatic) operation. It can also be used to
locally open or close the valve. This is par ticularly
helpful when ser vicing or recalibrating the valve is
required.
The large LED readout displays the valve position (in
percent). The VPIF contains an internal independent
current source, which is switch selectable for 4 mA
(close) and 20 mA (open).
The VPIF can be mounted on or near the valve for ease
of use and visibility. This provides better accessibility
for technicians when valves are mounted high in the
air or in obstructed areas. The VPIF can be mounted
up to 10 feet (3 meters) in any direction from the valve.
VPIEC Extension Cables are available where more
length is required.
KEY FEATURES
Provides local indication of the SMV valve position
Facilitates SMV recalibration
Versatile installation options
Large LED readout
Water tight corrosion resistant enclosure (NEMA 4X)
Uses same supply voltage as SMV
ADVANTAGES
The VPIF displays valve position locally while passing
the feedback signal if it is to be monitored remotely.
For recalibration of SMV, the VPIF will output either
4 mA (close) or 20 mA (open). An externally mounted,
waterproof three position switch is used for positioning
of the SMV.
The VPIF valve position feedback can alert operators
to unstable control schemes. This feature is ver y
important to the proper operation of the refrigeration
system and the life of the Sealed Motor Valve. The
VPIF is compact and reliable at very low temperatures.
Waterproof quick disconnect connectors allow for easy
removal of the SMV power head for ser vice.
APPLICATIONS
The VPIF may be installed on the following Sealed
Motor Valve models:
HMMV/HMMVC
HMMR/HMMRC
HMXV/HMXVC
