AAON RN Series, Installation, Operation & Maintanance Manual, Page: 104 / 116

104
Water
Containing
Concentration
(mg/l or ppm)
Time Limits -
Analyze Before
AISI
316
SMO
254
Copper
Alloy
Nickel
Alloy
Total Hardness
(°dH)
4.0-8.5 No Limit + + + +
Nitrate (NO
3
)
< 100
No Limit
+ + + +
> 100 + + 0 +
Iron (Fe)
< 0.2
No Limit
+ + + +
> 0.2 + + 0 +
Aluminum (Al)
< 0.2
No Limit
+ + + +
> 0.2 + + 0 +
Manganese (Mn)
< 0.1
No Limit
+ + + +
> 0.1 + + 0 +
Chloride Content
Chloride Content
Maximum Temperature
60°C (140°F) 80°C (176°F) 120°C (248°F) 130°C (266°F)
= 10 ppm SS 304 SS 304 SS 304 SS 316
= 25 ppm SS 304 SS 304 SS 316 SS 316
= 50 ppm SS 304 SS 316 SS 316 Ti / SMO 254
= 80 ppm SS 316 SS 316 SS 316 Ti / SMO 254
= 150 ppm SS 316 SS 316 Ti / SMO 254 Ti / SMO 254
= 300 ppm SS 316 Ti / SMO 254 Ti / SMO 254 Ti / SMO 254
> 300 ppm Ti / SMO 254 Ti / SMO 254 Ti / SMO 254 Ti / SMO 254