Watts PWSTA 90-120K - Manual

Installation, Operation
and Maintenance Manual
Series PWSTA
Water Softener Systems
IOM-WQ-PWSTA
Table of Contents
Job Specifications Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General and Commercial Installation Checklist . . . . . . . . . . . . . . . . . 3
General and Commercial Installation Checklist . . . . . . . . . . . . . . . . . . 5
Regeneration Cycle Program Setting Procedure . . . . . . . . . . . . . . . . 8
Time Brine Refill and Meter Setting Procedure . . . . . . . . . . . . . . . . . . 9
9100 Electro Mechanical Timer Assembly . . . . . . . . . . . . . . . . . . . . 11
9100 Power Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9100 Control Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9000/9100/9500 Second Tank Assembly . . . . . . . . . . . . . . . . . . . . 17
9100 Meter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9100 Bypass Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2310 Safety Brine Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Water Conditioner Flow Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Mechanical Timer Valve Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9100 Control Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Meter Flow Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Injector Flow Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
PURE WATER
Model 9000/9100/9500
Service Manual
IMPORTANT: Fill in pertinent information on page 3 for future reference.
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system .