
3
SAFETY GUIDES
Follow the installation instructions carefully. Failure to install the commercial system properly voids the
warranty.
Before you begin installation, read this entire manual. Then, obtain all the materials and tools you will need
to make the installation.
Check local plumbing and electrical codes. The installation must conform to them.
Use only lead--free solder and flux for all sweat--solder connections, as required by state and federal codes.
Do not locate this system where freezing temperatures occur. Do not attempt to treat water over 120F. Freez-
ing, or hot water damage voids the warranty.
Avoid installing in direct sunlight. Excessive sun heat may cause distortion or other damage to non--metal-
lic parts.
This system requires a minimum water pressure of 30 psi at the inlet. MAXIMUM ALLOWABLE Inlet water
pressure is 125 psi. If daytime pressure is over 80 psi, nighttime pressure may exceed the maximum. Use
a pressure reducing valve if necessary. (Adding a pressure reducing valve may reduce the flow.)
The system works on 24 volt--60 Hz electrical power only. Be sure to use the included transformer.
This system is not intended to be used for treating water that is microbiologically unsafe or of unknown quality
without adequate disinfection before or after the system.
SPECIFICATIONS
EQUIPMENT SPECIFICATIONS
MODEL SOFTENERS
PA071 PA101 PA131 PA191 PA251 PA321
TANK SIZE (IN) 12” x 54” 17” x 58“ 17” x 58“ 24” x 71” 24” x 71” 24” x 71”
CAPACITY (GRAINS) @
SALT USAGE PER CU.
FT. RESIN
4 LBS. 37,000 54,000 72,000 108,000 144,000 180,000
6 LBS. 50,000 72,000 96,000 144,000 192,000 240,000
8 LBS. 61,000 84,000 112,000 168,000 224,000 280,000
10 LBS. 67,000 93,000 124,000 186,000 248,000 310,000
12 LBS. 71,000 99,000 132,000 198,000 264,000 330,000
RECOMMENDED FLOW
RATES ¡
5GPM 2.9 nP1.4 nP1.5 nP1.3 nP1.3 nP1.3 nP
10 GPM 7.3 nP4.2 nP4.4 nP3.4 nP3.6 nP3.8 nP
15 GPM 13.0 nP8.0 nP8.6 nP6.9 nP7.3 nP7.6 nP
20 GPM 20.0 nP13.0 nP14.0 nP11.6 nP12.0 nP12.4 nP
25 GPM 28.6 nP19.1 nP20.5 nP17.9 nP18.4 nP19.0 nP
30 GPM 38.3 nP26.5 nP28.3 nP24.0 nP24.9 nP25.6 nP
35 GPM N/A 35.0 nP37.0 nP32.0 nP33.0 nP34.0 nP
40 GPM N/A N/A N/A 41.0 nP42.2 nP43.4 nP
RESIN (CU. FT.) 2346810
BAGS OF GRAVEL (LBS)
FINE 1 (17#) 2 (17#) 2 (17#) 1 (50#) 1 (50#) 1 (50#)
MEDIUM 1 (50#) 1 (50#) 1 (50#)
COURSE 1 (50#) 1 (50#) 1 (50#)
SALT CAPACITY 340# 1000# 1000# 1500# 1500# 1500#
PIPE SIZE (IN) 1” 1” 1” 1” 1” 1”
BACKWASH/FST. RNS. FLOW RATES 3.0 7.0 10.0
¡psi pressure loss @ continuous flow rates
intermittent or peak flow rates
flow rates not recommended (hardness leakage, reduced efficiency, etc.)