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2.3 Electrical Requirements
The Phoenix 300 can be plugged into a grounded 15
Amp circuit. At 80°F, 60% RH, it draws 11.4 Amps. Due
to the high percentage of a 15 Amp circuit's capacity
that the unit uses, the circuit should be dedicated to
running it only. Amp draw decreases at lower loads and
increases at higher loads. At extremely high loads, a 20
Amp circuit may be required.
The unit briefly draws more amps to start if it has been
stored in a cold area. This may cause a 15 Amp circuit
breaker to trip. A 20 Amp circuit is recommended in
such situations. Some models have a time delay to
delay the compressor start about 2 minutes after the
power switch is turned on. This reduces the unit's
starting amp draw by starting the blower and
compressor at different times.
If an extension cord is required, it must have a
minimum of 12 gauge conductors if 25 feet long or less
and 10 gauge conductors if greater than 25 feet long.
2.4 Condensate Removal
The Phoenix 300 is equipped with an internal
condensate pump to remove the water that is
condensed during dehumidification. This allows the
condensate to be pumped 30' with the attached hose. If
the condensate must be pumped more than 20 feet
above the unit, a second pump must be added to relay
the condensate.
2.5 Ducting
A detachable 10" round exhaust collar is supplied that
will allow a 10" round flexible duct to be attached to the
Phoenix 300 outlet. The duct and collar may be quickly
attached to the Phoenix 300 by sliding the 4 collar tabs
into the slots around the blower outlet and rotating the
collar clockwise. It may be quickly removed to transport
the unit more easily.
2.6 Power Switch
The power switch (on left side of hour meter) lights up
when the unit is turned on. The unit will continue to run
in all conditions until the switch is turned off; there is no
dehumidistat.
2.7 Pump Purge Switch
This switch (on right side of hour meter) minimizes the
water left in the condensate pump reservoir for moving
or storage. Pressing and holding the pump purge
switch will cause the condensate pump to run. Hold the
switch in until the flow from the condensate hose stops.
2.8 Pump Fail Light
If the condensate pump fails, water draining into the
pump reservoir will fill above its normal level. A safety
float switch will then turn on the pump fail light (located
next to the pump purge switch) and stop the
compressor. This prevents water from overflowing and
wetting the floor. The safety switch will not allow the
compressor to restart until water has been removed
from the pump reservoir.
2.9 Hour Meter
The digital hour meter measures the cumulative time
that the unit is turned on to tenths of an hour. It stores
its total when the unit is unplugged; the previous total
will be displayed when the unit is next turned on. It
resets to zero after 99,999.9 hours of operation.
2.10 Defrost Control Adjustment
When the Phoenix 300 is used in a cool area, frost will
form on the cooling coil as it dehumidifies. When
enough frost forms, the defrost thermostat will initiate
the timed 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.
The defrost cycle is automatic and designed for
optimum performance above 50°F. If the unit is used in
an area that is below 50°F for more than 2 hours,
adjustment of the defrost timer is recommended to
improve performance (see Sec. 2.10).
DRYING TIP: Air's ability to absorb moisture from wet
surroundings and the Phoenix 300's ability to remove
moisture from that air is greatly improved at higher
temperatures. We recommend that the area to be dried
be heated to over 70°F if possible. Less drying time will
be required and efficiency will improve.
To adjust the defrost timer:
1. Unplug the unit.
2. Remove the front cover (6 screws).
3. The timer is fastened to the right inside panel.
Every fourth peg around the dial is pushed out
from the dial center except one section with 5
pegs out in a row. See figure 1. Each fourth "out"
peg represents 15 minutes of compressor "off"
time during every hour that the unit is in the
defrost cycle.
4. To improve performance below 50°F, the
compressor "off" time must be increased to 30
minutes per hour to allow the frost to completely
melt. To do this, push the pegs out from the dial
2
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