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Maximum Allowable Piping Length & Elevation Difference
MAINTENANCE
• Air Filter
According to specific environment conditions, the air filter is often fixed at a return air entrance,
to effectivel y screen soot, dust, dirt, farina and other matters. The air filter is usually made of
nylon or leno fiber, and can be washed with water. When cleaning it, lay it on a solid place and
knock it lightly to remove dusts from its surface. If necessary, wash it with neutral detergent in
warm water, and dry it before fix it back.
The air filter can be fixed and removed conveniently , for it can be taken out from all sides of a
unit.
• Belt
The indoor unit is driven by belt(s). After the unit works for some time, adjust the belt tension.
• Heat exchanger
Use a vacuum cleaner and a nylon brush to clean up the heat exchanger. If there is a com-
pressed air source available, blow off the dust from the exchanger surface with compressed
air. You should note that with a proper air ltering net and suf cient maintenance, there is no
need to wash the indoor exchanger's surface.
However, the outside heat exchanger should be washed and cleaned regularly.
• Drainage Pipe
Before start the units,check if the drainage pipes are clogged, and ensure that the condensate
water can smoothly
• Components Replacement
You can get parts and accessories from the nearest representative of The following items
should be noted when you want some new components.
1) Unit model;
2) Unit series number;
3) Accessory name and required amount.
INSTALLATION OF UNIT
INDOOR
UNIT
7
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