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5
R250| LGR Dehumidifier Installation, Operation, and Maintenance Instructions
3.5 DUCTING
A wire duct collar is supplied to allow 10” lay-flat duct to be attached to the Phoenix
R250 outlet. Lay-flat plastic ducting is available (see accessories in section 6).
Attach ducting to the wire duct collar by inserting the plastic duct end through the
collar center and rolling the duct end outward to overlap the outside of the collar.
The duct and collar may then be quickly attached to the Phoenix R250 by snapping
the collar over the four plastic exhaust tabs.
If the R250 is located in the unaffected area, the intake can be ducted with 12” flex
duct (see accessories in section 6). Attach the flex duct to the top cover by hooking
the spiral wire under the four tabs. Tape the duct to the top cover for a complete
seal.
3.6 DEFROST CYCLE
When the Phoenix R250 is used in a cool area, or the dewpoint is below 50°,
frost will form on the cooling coil as it dehumidifies. When enough frost forms, the
defrost thermostat will initiate the defrost cycle. The cycle periodically turns off the
compressor while allowing the blower to run. The frost is melted by the air that the
blower draws through the cooling coil.
Figure 2: Phoenix
R250 with lay-flat
duct.
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