General Filters GeneralAire 5500, Installation And User Manual

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Form No. 5500-32 Rev C
Code: +0700092EN REV 3.2 04APR2022
ENG
3.4 CHARACTERISTICS OF THE SUPPLY WATER
The humidifier must be supplied with water with the following characteristics:
• Incoming Pressure: Between 20psi and 90psi or 0.1 and 0.8 MPa (1 - 6 bar)
• Maximum intermittent pressure: 110psi (8 bar). Maximum intermittent pressure includes water hammer or other supply water
pressure spikes. High-water pressure can be addressed with water hammer arrestors or pressure regulators.
• Temperature: Between 33°F and 70°F or 1°C and 21°C
• Flow-rate: Minimum of 0.45 L/min or 0.12gpm
• Hardness: No greater than 40°fH (equal to 400 ppm of CaCO3)
• Conductivity: From 125 to 1250 μS/cm using AP-2 (GFI #7066) or similar
• Absence of organic compounds
• The characteristics of the water of supply must fall within the following limits (Table 3.c.)
NORMAL WATER
LOW SALT
CONTENT WATER
UNITS MIN MAX MIN MAX
Hydrogen ions (pH) 7 8.5
Specific conductivity (R,20°C) μS/cm 125 1250
Total dissolved solids (c R) mg/l (*) (*) (*) (*)
Dry residue at 180°C mg/l
(*)
(*) (*) (*)
Total hardness mg/l CaC³O 0 200 50 160
Temporary hardness mg/l CaC³O = 150 = 200
Iron + Manganese mg/l Fe + Mn = 0.2 = 0.2
Chlorides ppm Cl = 20 = 30
Chlorides mg/Si2O = 20 = 20
Chlorine residue mg/l Cl- = 0.2 = 0.2
Calcium sulphate mg/l CaS4O = 60 = 100
Tab. 3.c
* Values are dependent on the specific conductivity: cR~=0.65*σR, 20°C; R180~=0.9*σR, 20°C.
NOTE: There is no relationship between the hardness and conductivity of water.
IMPORTANT: The following water types are not acceptable:
• Softened water (will lead to foam, electrode corrosion and greatly shortened cylinder life)
• Water containing disinfectants or corrosion inhibiters (potential irritants)
• Industrial water, boiler water or water from cooling circuits
• Any potentially chemically or bacteriologically-contaminated water
• Heated water