Nortec GS Series - Manual (Page 45)

GS Series Installation | 42
Hardness: Measured in gpg (grains per gallon). Follow the instructions on each individually wrapped test
strip and use the colour chart provided. The recommended operating range for hardness is 0 gpg to 12 gpg.
Note: High hardness along with high silica may increase the service intervals of the system. Consult the
factory if this condition exists at the site.
pH: Follow the directions on the test strip bottle. The recommended operating range for pH is 6.5 to 7.5 on
the colour scale. Consult the factory if outside these parameters.
Chlorides: Measured in ppm (parts per million). Follow the directions on the test strip bottle. The
recommended level for chlorides is not to exceed 40 ppm.
NOTE: Failure due to chloride corrosion is not covered under Nortec’s standard warranty if chloride
concentration is allowed to reach elevated levels in the tank. Consult factory for more information.
High levels of chlorides will attack stainless steel. Consult the factory for additional information if your water
contains high levels of chlorides.
Conductivity: Measured in micromhos. Follow the directions for the conductivity pen found inside the box.
Multiply the digital reading by 1.5. The recommended operating range for conductivity is 0 - 1500
micromhos. Consult the factory is you measure outside these parameters.
Table 8: Water Quality Ranges
Technology Water /
Type
Water Cond.
Range
Hardness
Range
Silica Range Alkaline
Range
Chlor.
Range
Gas-fired Micromhos GPG PPM pH PPM
Potable 0-1500 0-12 0-14 6.5-7.5 0-40
Treated 0-100 0-1 0-1 7-7.5 0-40
Nortec recommends performing a semi-annual water analysis to ensure optimal performance.
The humidifier is intended to operate on cold potable tap water.
DO NOT use a hot water source to supply the humidifier. Minerals will adhere more easily to surfaces and
the fill valve's small flow regulating orifice could become plugged.
Consider using a water softener. Longer operating times between tank cleaning will be reached on softened
water.
Reverse osmosis (RO) water can provide very long times before cleaning is required since it is cleaner than
softened water. Deionized (DI) water may be used with all models. Consult your Nortec representative for
quote on a water treatment system.
Safety Instructions
Refer to pages 1 and 2 of this guide, as well as all other marked safety instructions.