GeneralAire 5500 Replacement Instructions

GeneralAire
The humidifier and the cylinder contain live electrical components and very hot surfaces. All service and maintenance operations must be carried out
by qualified personnel who are aware of the necessary precautions. Before performing any operations on the cylinder, make sure that the humidifier is
disconnected from the power supply. Remove the cylinder from the humidifier only after having drained it completely.

Conductivity

Conductivity measure the amount of minerals in the water; on the new version of the GeneralAire
used with conductivity levels between 125 and 1250 µS/cm. This simplifies maintenance.

Measuring Water Conductivity

A water sample should be taken from the humidifier supply connection. The water sample can be tested on site by available portable cup or dip style
testers. Tester Manufacturers: Hanna Instruments, Oakton Instruments, Myron L. Company, Mettler-Toledo, Denver Instrument Company, and Electro-
Chemical Devices, Inc.

Removing and Cleaning Components

WARNING:
The cylinder may reach high temperatures. Let it cool down before touching it or wear protective gloves.

!
1. To Remove the Cylinder
a) Remove the cover by unscrewing the one screw at the bottom. (Figure 1a)
b) Completely drain the cylinder, holding the "drain" button until the cylinder is empty.
c) Turn the humidifier off. DISCONNECT THE MAIN POWER SUPPLY (AT CIRCUIT BREAKER).
d) Remove the blue steam hose from the cylinder. (Figure 1d)
e) Disconnect the two black cables at the top of the cylinder by pulling the black snap-on cap upwards. Then pull the red-capped
sensor cable up and off. (Figure 1e)
f) Lift up the black cylinder support bracket and lift the cylinder out of the unit and into a bucket to catch residual water from the cylinder. (Figure 1f)
Figure 1a
 !
WARNING:
The cylinder may reach high temperatures. Let it cool down before touching it or wear protective gloves.
2. Cleaning the Fill Or Mixing Valve and Drain Pump
a) With power disconnected, turn the water supply off and disconnect the water supply hose.
b) Remove the valves and the drain pump by unscrewing the corresponding screws; check the condition of the valve inlet filters.
c) Clean with solution of vinegar or diluted acetic acid and soft brush.
d) Rinse parts with fresh water.
e) Replace any components that show excessive wear or could not be completely cleaned. Ensure that the washer and spring are
properly reassembled in the drain pump.
1
®
Model 5500 Steam Cylinder Replacement Instructions
®
Steam Cylinder Replacement: Model 55 - GFI #7746 (USA); Model GF-55 (Canada)
USA: www.GeneralFilters.com
43800 Grand River Ave
Novi, MI 48375
(866) 476-5101
www.GeneralFilters.com
Model 5500, a cylinder has been designed that can be
®
Figure 1d Figure 1e
Canadian General Filters
Limited
Figure 1f
Canada: www.CGFProducts.com
400 Midwest Rd
Toronto, Ontario M1P3A9
(888) 216-9184
www.CGFProducts.com