Efficiency Statements - A.O. Smith AO-WH-PRO-300 Owner's Manual

EFFICIENCY STATEMENTS

18
This product is efficiency rated according to NSF/ANSI 44. The stated efficiencies are valid
only at the specified salt dosage and 7.0 gpm (26.5 L/min):
Model Rated Efficiency
AO-WH-SOFT-
5,210 grains/lb (742 grams/kg)
450T
AO-WH-SOFT-
5,210 grains/lb (742 grams/kg)
PRO-300
AO-WH-SOFT-
5,210 grains/lb (742 grams/kg)
PRO-500
An efficiency-rated water softener is a demand-initiated regeneration softener that also
complies with specific performance specifications intended to minimize the amount of
regenerant brine and water used in its operation.
Efficiency-rated water softeners shall have a rated salt efficiency of not less than 3,350
grains of total hardness exchange per pound of salt (based on NaCI equivalency) (477 grams
of total hardness exchange per kilogram of salt), and shall not deliver more salt than its
listed rating.
Efficiency is measured by a laboratory test described in NSF/ANSI 44. The test represents
the maximum possible efficiency that the system can achieve. Operational efficiency is the
actual efficiency achieved after the system has been installed. It is typically less than the
efficiency due to individual application factors including water hardness, water usage, and
other contaminates that reduce the softeners' capacity.
Reduction Capabilities for Specific Contaminants
USEPA Max.
Name of Substance
Contaminant Level
Barium
2.0 mg/L
Radium 226/228
5 pCi/L
Salt and Capacity Range
Model Minimum Capacity/Salt
AO-WH-SOFT-
6,510 grains/1.25lb
450T
AO-WH-SOFT-
5,210 grains/1lb
PRO-300
AO-WH-SOFT-
8,650 grains/1.66lb
PRO-500
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Capacity at That
Salt Dosage
Dosage
1.25 lb (0.57 kg) 6,510 grains (422 grams)
1 lb (0.45 kg) 5,210 grains (338 grams)
1.66 lb (0.75 kg) 8,650 grains (561 grams)
Influent Challenge Level
10 +/- 10% mg/L
226/228: 25 pCi/L
Middle Capacity/Salt Maximum Capacity/Salt
35,960 grains/10 lb 45,000 grains/18.75lb
20,360 grains/5 lb 30,000 grains/9lb
33,410 grains/8lb 50,000 grains/15lb
INSTALLATION GUIDE
2 SPECIFICATIONS
Specification
Maximum Capacity -
grains
Maximum Compen-
sated Hardness - gpg
(mg/L)
Maximum Ferrous
Iron Reduction -
ppm5,6
Minimum pH -
standard units
Maximum Chlorine
- ppm
Water & Ambient
Temperature Mini-
mum-Maximum - °F
(°C)
Water Pressure
Minimum - Maximum
- psi (bar)
Maximum Flow Rate
to Drain During
Regeneration gpm
(L/min)
Minimum Water
Flow for Backwash
gpm (L/min)
Service Flow Rate
(@15 psi (1.0 bar))
drop - gpm (L/min)
High Efficiency Salt
Setting - lb/grains
removed (kg/grams
removed)
High Efficiency Salt
Setting - Total Length
of Regeneration -
min/gal (min/L)
High Capacity Salt
Setting - lb/grains
removed (kg/grams
removed)
AO-WH- AO-WH-
AO-WH-
SOFT- SOFT-
SOFT-450T
PRO-300 PRO-500
30,000 Grain
45,000 Grain 50,000 Grain
Capacity
Capacity Capacity
Water
Water Water
Softener For
Softener Softener
City Water
45,000 30,000 50,000
100 90 110
10 0 10
7 7 7
0 3 0
40/120 (4/49) 40/120 (4/49) 40/120 (4/49)
20/120 20/120 20/120
(1.4/8.3) (1.4/8.3) (1.4/8.3)
2 (7.6) 2 (7.6) 2.4 (9.1)
2 (7.6) 2 (7.6) 2.4 (9.1)
8 9.1 7
5/21600 3/13400 6/26400
(2.3/1400) (1.4/868) (2.7/1710)
27.5/21 42.5/30
35/26 (35/98)
(27.5/80) (42.5/114)
9/33600 7/26000 10/39500
(4.1/2170) (3.2/1685) (4.5/2560)
NEED HELP? GIVE US A CALL 855.424.9892
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