3M ScaleGard HP, Installation And Operation Instructions Manual

6

Feedwater Requirements 

IMPORTANT NOTES

IMPORTANT NOTES

• Be sure to confi rm that the feedwater falls within the limits shown below. If unsure of the feedwater quality, check with your 3M

™

 Water Filtration 

Products distributor.

Inlet water pressure ............................30-125 psi (207-862 kPa)

Feed TDS .................................................. 1,000 ppm Maximum

Hardness ...................................................<10 grains (171 mg/l)

Iron (Fe) ...................................................................... <0.1 mg/l

Hydrogen Sulfi de ................................................... None Allowed

Feed pH ...............................................................................4-11

Free Chlorine ............................................................... <0.1 mg/l

Manganese (Mn) ....................................................... <0.05 mg/l

Turbidity ..........................................................................<5  NTU

Temperature ................................................................... >50  °F*

Challenge Water Recommendations
(

Contact dealer/distributor for assistance in water testing)

If there is iron or manganese above recomended limits present in the incoming-water, it is recommended to install water softening system upstream 
of ScaleGard

™

 HP System.

If incoming water hardness is greater than 

10 grains (171 mg/l)

, it is recommended to install water softening system upstream and change the stan-

dard fl ow control on the drain-line to achieve recovery of the RO system at 33%. (HFRO 33% Recovery kit PN-50-93201)

If the particle count is >1000 counts/ml for particles less than 2 micron size or turbidity is greater than the recommended 5 ntu limit, then it may be 
required to consider different prefi ltration options and change the standard fl ow control on the drain-line to achieve recovery of the RO system at 
33%. (HFRO 33% Recovery kit PN-50-93201) . Contact your dealer/distributor for details.

It is recommended to install an SGHP RO-EXP and SGHP Pre-EXP  under the following conditions:

1. If more production capacity is needed.
2. If installed in a location where water temperature drops below 50 °F (10 °C) during any part of the year.
3. If the particle count is >1000 counts/ml for particles less than 2 micron size or turbidity is greater than 5 NTU limit.
4. If the incoming water TDS is greater than 1000ppm limit.

Other Requirements

Power......... 110V (PN-5629101, 6239301), 220V (PN-6239302)

*If at any time during the year water temperature falls below 50 °F, see 
challenge water recommendations below.

NOTICE

NOTICE

See safety information regarding reducing the risk associated with property damage due to water leakage or fl ooding on page 4 prior 
to set-up and installation of the system.