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3.2 Location
Note the following precautions when locating the Phoenix
R250:
• It is designed to be used INDOORS ONLY.
• If used in a wet area, plug it into a GROUND FAULT
INTERRUPTER.
• DO NOT use the Phoenix R250 as a bench or table.
• It must always be used in the upright position.
3.3 Electrical Requirements
The Phoenix R250 plugs into a common grounded outlet on
a 15 amp circuit. It draws 8.3 amps at 80°F, 60% RH. If used
in a wet area, a ground fault interrupter (GFI) is required. If
an extension cord is required, it must have a minimum of
14 gauge conductors if 25 feet long or less and 12 gauge
conductors if greater than 25 feet long.
3.4 Condensate Removal
The Phoenix R250 is equipped with an internal condensate
pump to remove the water that is condensed during
dehumidification. This pump allows the condensate to be
pumped 20 feet above the unit with the attached hose. If the
condensate must be pumped more than 20 feet above the
unit, a relay pump must be added. The condensate pump
automatically purges for 20 seconds every eight minutes. Use
the PURGE button to empty reservoir. If the condensate level
rises in the reservoir to a critical level a back-up float switch
will activate the pump-out for up to 1 minute. If the water in
the reservoir fails to be evacuated, the safety switch will turn
off the compressor.
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
If the low side refrigerant temperature drops below the
defrost set point, due to excessive frost formation on
the evaporator coil, the thermistor activates the solid-
state control and the defrost light. The control cycles the
compressor “off” and “on” by the thermistor temperature
measurement. The air mover will continue to run, causing air
to flow through the evaporator coil and melt the ice when the
compressor is off. When the air temperature and/or humidity
increases, the evaporator temperature will rise and the
thermistor will end the defrost cycle at the defrost set point.
3.7 POWER Button
Press the POWER button to turn the dehumidifier “on” or
“off”. When starting the dehumidifier the display will show
the accumulated hours. Press the POWER button again to
turn the dehumidifier off. The display will also power off.
3.8 PURGE Button
During normal operation the pump automatically cycles
every eight minutes. Press the PURGE button to remove
condensate manually from the reservoir. There are three
ways to manually remove water from the reservoir:
1. Press the PURGE button once and the pump will run for
20 seconds
2. Press and hold the PURGE button and the pump will run
for up to 30 seconds
3. Press the PURGE button while the dehumidifier is
plugged in but powered off and the pump will run for 30
seconds.
Always manually purge the water reservoir before transport
or storage. Turn off the power and allow the plugged in
dehumidifier to rest 15 minutes before the final purge.
3.9 Hour Meter
The digital hour meter displays the amount of time the
dehumidifier has been turned on to the tenth of an hour. The
hour meter continuously cycles between total machine hours
and job hours every 3 seconds. Hours are stored in memory
even when the unit is unplugged. The previous totals will be
displayed next time the unit is powered on.
3.10 HOURS Button
Pressing the HOURS button displays the hour meter when the
unit is turned off but plugged into power. To reset job hours,
press and hold the HOURS button for 5 seconds when the
unit is operating.
Figure 3: Phoenix R250 control board.
Figure 2: Phoenix R250 with lay-flat duct.
