Pentair WHISPERFLO VST User Manual

WHISPERFLO
®
VS and WHISPERFLO
®
VST Variable Speed Pump Installation and User’s Guide
1
WhisperFlo
®
VS and WhisperFlo
®
VST Variable Speed
Pumps are designed to be your best choice for a variety
of in-ground pools.
The thick walled pump body, permanent magnet motor,
and highly engineered hydraulics make this rugged and
tested design perfect for any pool, spa, water feature, or
fountain.
All Pentair pumps incorporate innovative hydraulic
engineering that has been rened for over 40 years.
Compact, rugged, and easy to maintain, this pump will
deliver years of reliable service.
Pump Features
• Extremely quiet operation
• 2 in. Plumbing for simple replacement
• See-through strainer pot lid allows easy inspection
of strainer basket
• Self-priming for quick, easy start-up
• WEF: 8.4 THP: 2.6
Motor Features
• High-E󰀩ciency Permanent Magnet Motor
• 56 Square Flange
• Totally Enclosed Fan Cooled (TEFC)
INTRODUCTION
Drive Features
The pump features a premium e󰀩ciency variable
frequency drive that provides exibility in terms of motor
speed and duration settings.
This pump is for use with 115/208-230 Vrms nominal,
and in pool pump applications ONLY. Connection
to the wrong voltage, or use in other applications may cause damage to
equipment or personal injury.
The pump's drive controls the speed settings as well as
run durations. The pump can operate at speeds ranging
between 450 and 3450 RPM and will operate within the
voltage range of 115-230 Vrms nominal at either 50 or
60Hz input frequency.
The pump is intended to run at the lowest speeds
needed to maintain a sanitary environment and, at the
same time, minimize energy consumption. Factors
such as pool size, the presence of additional water
features, type of chemicals used to maintain sanitary
conditions, and local environmental factors will impact
optimal programming to maximize energy conservation.
Determining the optimal settings and programming for
your pool may require some trial-and-error.
• Simple user interface
• UV and rain-proof enclosure
• Onboard time of day schedule
• Adjustable priming mode
• Programmable Quick Clean mode
• Pump alarm display and retention
• Accepts 115-230V, 50/60Hz input power
• Auto power limiting protection circuit
• 24hr. clock retention for power outages
• Keypad lockout mode
External Control
This pump can be externally controlled via digital inputs
using the RS-485 Automation Wiring Kit (P/N 356324z).
See External Control via Digital Inputs, page 6.
The pump can be externally controlled by most Pentair
control systems via an RS-485 connection using the
RS-485 Automation Wiring Kit (P/N 356324z). The pump
address and other settings can be programmed from the
pump's keypad. See External Control via RS-485, page
5.
When connected to external controls, the pump will
prioritize commands as follows:
RS-485 > Digital Inputs > Drive Programmed Schedule
Refer to the control system manual for further details on
how to connect and program your pump with your control
system.

Pentair WHISPERFLO VST Specifications

General

Control Type	Variable Speed
Model	WHISPERFLO VST
Motor Type	Permanent Magnet Motor
Wet End Material	Thermoplastic
Speed Range	600 to 3450 RPM
Type	Pool Pump
Port Size	2 inch
Control Interface	Digital Display