Pentair WhisperFlo VST Variable Speed Pool Pump WhisperFlo VST Install and Use
Pentair WhisperFlo VST Variable Speed Pool Pump Manual
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- Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 1
WHISPERFLO® VS WHISPERFLO® VST VARIABLE SPEED PUMP INSTALLATION AND USER'S GUIDE IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 2
, loose, cracked, or not properly secured. NOTE: ALL SUCTION PLUMBING MUST BE INSTALLED IN ACCORDANCE WITH THE LATEST NATIONAL AND LOCAL CODES, STANDARDS AND GUIDELINES. F WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 3
pump shut-off system. Commercial pools and spas constructed prior to December 19, 2008, with a single pump during system start-up, shut down or servicing of the system filter. Warning Page P/N 352557 Rev. D 11/19 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 4
the Pump 18 Winterizing 18 Troubleshooting 19 Troubleshooting Chart 19 Alarms and Fault Codes 20 Replacement Parts 21 Technical Data 22 Performance Curves 22 Specifications and Dimensions 22 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 5
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 - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 6
Arrows - Used to make adjustments to the pump settings. The "+" arrow increases a value, while "-" decreases a value. Pressing and holding either arrow button will increase or decrease incremental changes faster. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 7
This will help the pump prime faster and last longer. Note: DO pump. 4. Be sure to install check valves when plumbing in parallel with another pump. This helps prevent reverse rotation of the impeller and motor. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 8
service people, pool users or others due to electric shock and/or property damage. Read all servicing instructions before working on the pump. The pump accepts 115-230 V, 50 or 60 Hz single Connections Figure 3 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 9
be continue to be controlled by the pump. Refer to Priming on page 11. 10. Plug the communication cable into the Pump Com Port (Figure 5). 11. Press the Start/Stop button to start the pump. Pump Com Port Figure 5 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 10
INPUT YELLOW (Y) SPEED 2 DIGITAL INPUT ORANGE (O) SPEED 3 DIGITAL INPUT BROWN (B) SPEED 4 DIGITAL INPUT K BLACK (K) GROUND 10. Press the Start/Stop button to start the pump. LINE 1 LOAD 1 LINE 2 LOAD 2 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 11
enable/disable External Control Only mode. The Ext. Control Only LED will illuminate if enabled. See Figure 8. 3. Press the Start/Stop button to start the pump. Figure 8 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 12
schedule again. The pump will continue to run in this in this manner until a custom schedule is programmed. Note: The Start/Stop button must be pressed, and the Start/Stop LED illuminated, for the pump to run. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 13
run the programmed schedule. Note: If you do not want the pump to run during a specific time of the day, any of the SPEEDs can be programmed to 0 RPM. This ensures the pump will not run during the SPEED duration. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 14
between "SEr" and the current Quick Clean speed (Figure 12). Once Service Mode is disabled the pump will resume normal operation. Note: Quick Clean speed will read 0 when Quick Clean is off. 5Er 3450 Figure 12 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 15
water drain from the system in between each test. Note: To prevent air from entering the system, the pump strainer pot should always be filled with water up to the bottom of the suction port. Pr1 0FF Figure 13 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 16
the start or stop times of the 24-hour schedule. For example, if Quick Clean runs during a period overlapping with a later part of SPEED 1 and an early part of SPEED 2, the start time of SPEED 3 is not affected. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 17
on with the Start/Stop button before it will run again. The pump will run the programmed schedule upon initial start-up. 13 Speed (RPM) Duration Start Time (Hours) (Time Clock) Table 3 FACt r5t Figure 16 WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 18
air can cause the lid to separate which can result in serious injury, death, or property damage. To avoid this potential hazard, follow above instructions. DRAIN PLUGS INLET PORT Strainer Pot Assembly WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 19
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not pinched between the strainer pot and motor assembly. 9. Reinstall the both drain plugs into the bottom of the strainer pot. 10. To restart the pump, continue to Restarting the Pump, page 18. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 21
the pump according to the instructions given in Pump Reassembly, page 16. Old Ceramic Seal Old Spring Seal New Spring Seal New Spring Seal (Installed) Carbon Face Upwards FIGURE A FIGURE B FIGURE C FIGURE D WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 22
pool (half way up the skimmer opening). If the water level falls below the skimmer opening, the pump will draw air through the skimmer, lose prime and cause the pump to motor when operating or expecting operation. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 23
. Use compressed air to clean. Strainer basket excessively dirty or full Clean strainer basket. See Cleaning the Pump Strainer Basket, page 14. Loose mounting Ensure mounting bolts and pump bolts are tight. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 24
drive should undergo a hard power cycle. Disconnect power at the circuit breaker long enough for the keypad LEDs to turn off. If the error continues to appear after power is reconnected, the drive may need service. WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 25
Fluid Assembly, (Incl. All Items EXCEPT 31) Strainer Pot Assembly, (Incl. Items 1-4, 10, 24 and 25) RS-485 Automation Wiring Kit Motor Fan Guard Kit WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 26
Voltage 115-230 Vrms nominal Input Current 13.9/11.1-10.1 A Input Frequency Single phase, 50 or 60 Hz Control Terminals 18-30V AC (24V AC +/- 5.6" (142 mm) 9.1" (232 mm) 11.8" (300 mm) 12.8" (326 mm) WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 27
23 NOTES WHISPERFLO® VS and WHISPERFLO® VST Variable Speed Pump Installation and User's Guide - Pentair WhisperFlo VST Variable Speed Pool Pump | WhisperFlo VST Install and Use - Page 28
of their respective owners. Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice. Pentair is an equal opportunity employer. © 2022 Pentair. All rights reserved. This document is subject to change without notice
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INSTALLATION AND
USER'S GUIDE
WHISPERFLO® VS
WHISPERFLO® VST
VARIABLE SPEED PUMP
IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS