Specifications, Setup, Feed water – Watts PWSSTD User Manual
Page 4: Where to install the softener, Determine hardness setting

4
Specifications
Feed water
! Do not use this system on water that is microbiologically un-
safe or of unknown quality without adequate disinfection before
or after the system. !
Minimum inlet pressure: 20 psig
Maximum operating pressure: 125 psig
Minimum water temperature: 34°F (1°C)
Maximum water temperature: 110°F (43°C)
Power
Voltage: 120VAC
Frequency: 60Hz
Power consumption: 19 Watts Maximum
Installation
Location: Indoors (Protect from direct sunlight)
Minimum ambient temperature: 34°F (1°C)
Maximum ambient temperature: 122°F (50°C)
Brine Tank Salt Capacity
300 lbs (154 Kg)
Drain Flow Rates
30K - (1.0 ft
3
resin) – rated drain flow during regeneration – 2.0 gpm
45K - (1.5 ft
3
resin) – rated drain flow during regeneration – 2.4 gpm
60K - (2.0 ft
3
resin) – rated drain flow during regeneration – 3.5 gpm
Shipping Weights - approximate
30K – 110 lbs
45K – 130 lbs
60K – 190 lbs
Setup
Unpack and check the system components for damage or missing
parts.
Where to Install the Softener
Consider the following points when determining where to install the
water softener:
• Place the system as close as possible to a sewer drain.
• Do not install the softener where it would block access to the water
heater, or access to the main water shutoff, water meter, or electri-
cal panels.
• Keep outside faucets on hard water to save soft water and salt.
• Install the softener in a place where water damage is least likely
to occur if a leak develops.
• A 120VAC electrical outlet is needed.
• Always connect the system to the main water supply pipe before
the water heater.
• Install the system where it will not be subject to temperatures
outside of the limits stated in the Specification section or to direct
sunlight.
Determine Hardness Setting
Municipal Water
It is recommended that you call your local water company to deter-
mine your water hardness in grains per gallon and iron in mg/l (or
ppm).
Well Water
It is recommended that you have your water tested professionally for
accurate hardness and iron content.