2-2
Don’t place the HC-300 unit outdoors. The cabinet is not weather-
proof. If the unit is mounted outdoors, water may drip into the
electrical parts. This may cause an electrical shock hazard.
The two blowers inside the HC-300 spin very quickly. Your hand
may be hurt if you put it inside a blower while it is turning. Keep your
hands away from the blowers while the unit is turned on. Do not run
the HC-300 unless both the process and reactivation fans are
protected by ductwork or finger guards.
There are two conditions which could cause the unit to start without
warning:
•When the Auto/Off/Manual switch is set to Auto, the unit may
start if the humidistat contacts close.
• The motors on the blowers have internal over-current protection.
If one of these blowers is overloaded, the affected motor will turn
itself off. This over-current protection will reset automatically, so
the blower may start without warning.
You can avoid either kind of problem if you turn off the power before
working on the unit.
This type of wheel is washable. It is best to clean the wheel using
clean water only. If you must use a detergent, choose a mild type
(enzyme or dish-washing detergent). The wheel is sensitive to high
pH (base condition). Choose a detergent with a neutral pH. Do not
use any solvent to wash the wheel. This will permanently damage
the wheel.
PLEASE READ ALL OF THIS MANUAL. PLEASE FOLLOW THE INSTRUCTIONS
CAREFULLY AND COMPLETELY. PLEASE PAY PARTICULAR ATTENTION TO THE
SAFETY INSTRUCTIONS AND PRECAUTIONS.
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