50 Component Operation and Maintenance
6.5.2 Water Supply and Plumbing
1. The orifice in the fill valve is sized for an extended water pressure range of 15 to 150 psi.
2. With extremely dirty or muddy water sources, e.g., some well sources, ensure proper filtration by
adding an external filter to the water line entering the unit. (Consult factory for accessories such
as filters.)
3. DO NOT use completely demineralized water with this unit as it is the minerals that allow the
electrode principle to work.
4. DO NOT use a hot water source as it will cause deposits that will eventually block the fill valve
orifice and prevent quenching of drain water.
Water Connection
1. A copper compression type coupling for 1/4" O.D. soft copper tubing is provided with unit and
requires no soldering for the water connection to the unit. See Figure 10.
Figure 10 Bottom view of humidifier
2. An isolating valve should ALWAYS be placed in the feed water line allowing service of the fill
valve.
3. Each unit is fitted with a fill solenoid valve. Flow orifices are designed for water pressure from 15
to 150 psi and protected by the built-in strainer.
4. For inlet water pressure outside this range, the factory should be contacted. (See 6.5.2 - Water
Supply and Plumbing.)
7/8" Drain
Connection
3/8" Cold Water
Connection
Use 7/8" I.D. Hose From Factory
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