Installation Requirements; Pre-Treatment Solutions; Carbon Block For Chlorine And Chloramine Removal - Hoffman INNOVATEIT Instruction Manual

3. Installation Requirements

Note: Failure to properly pre-treat the water may result in reduced membrane life and premature membrane failure and is not
covered under the limited warranty.
Listed below are all the critical water specifi cation limits and the required pre-treatment regimens.
Feed Water Limits and Recommended Pre-Treatment Approach
Specifi cation
Water Hardness
Iron (Fe)
Iron Ferrite
Free Chlorine (Cl2)
Turbidity (dirt) - (NTU)
Manganese (Mn)
Hydrogen Sulfi de (H2S)
Organics
Total Dissolved Solids

3.1 Pre-Treatment Solutions

Water Softener
The ideal water hardless is < 1 Gain to maximize life of the membranes. The membranes will experience shorter life as the
water hardness increases.
The capacity water softener needs to be sized to supply continuous soft water during the R.O. System operation.

3.1.1 Carbon Block for Chlorine and Chloramine Removal

Most municipal water supplies treat their water with either chlorine or chloramine. Some water suppliers will use a combina-
tion of chlorine and chloramine or change the treatment from season to season, so you must contact your municipal water
supplier and decide if the water treatment will result in free chlorine in the feed water.
Installation Requirements
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Limit
< 1 grain
< 0.5 mg/L
0.05 mg/L
< 0.1 mg/l 0.1 PPM
< 0.2 NTU
< 0.05 mg/L
> 0.0 mg.L
> 0.0 mg/l
1,000 mg/l (max)
Recommended Pre-Treatment
Ion-exchange Water Softener
Iron Filter
Iron Filter
Activated Carbon
Ultrafi ltration (UF)/Microfi ltration (MF)/Multimedia Filtration (MMF)
Ion-exchange Water Softener
Oxidation, Aeration
Activated Carbon
Feed water must be below 1000 mg/l
Installation Requirements | 13