INDICATOR LIGHTS
ARROW BUTTONS
Use the up and down arrow button to set the desired humidity setpoint on the display screen.
The setpoint can be any number between 36-90%. Creating a setpoint means that when
the indoor humidity is lower than the set point, the machine will stop automatically.
Conversely, when the indoor humidity is higher than the set level, the unit will operate.
NOTE: The humidty levels
displayed are approximate only (+/- 5%)
CONTINUOUS MODE
To switch into continuous mode, simply use the down arrow to set the humidity below 36%.
The Cont light should iluminate green on the display board to indicate that you have
successfully switched into continuous mode. The display screen will show“CO”.
When set to continuous, the dehumidifier will run constantly, regardless of the humidity level.
To stop the machine, turn the unit off or switch back to normal humidistat operation. If you
would like to switch back to normal humidistat operation, simply move the setpoint above 36%.
CENTRAL CONTROL
This mode is not applicable on the PureAiro DSC 55S.
AUXILLARY TERMINALS A5/A6
The A5/A6 on the teminal strip can be used as a safety switch for extermal condensate
pumps.
It should be set to N/O (normally open) at the dehumidifier. If an E4 error occurs, switch the
wiring to NC (normally closed).
HUMIDITY DISPLAY SCREEN
The display screen has two functions:
POWER INDICATOR LIGHT
CONTINUOUS MODE/AUTODEFROST LIGHT
This light indicates that the unit is properly powered on and ready to operate. Always make
sure the unit is "off" prior to performing any service.
When this light iluminates green, it indicates that the dehumidifer is set to continuous
operation mode.
1. When the unit is powered on, it shows the humidity of the space.
2. While setting the desired humidity level, the screen wil show the set humidity. After a brief
delay,the display will revert to current humidity level.
When the light glows red, it means the unit is in auto defrost mode and clearing the
evaporator coil of any ice buildup.
NOTE: PureAiro DSC 55S Dehumidifiers can't sit directly on floor unless the unit is
feeding directly into a sump pump next to it. Elevation is required to allow gravity flow
of condensate water drain.
STEP #2: SET UP DRAIN LINE
The drain line should be routed to a suitable drain on the outside. It must flow down to a drain
without any loops, dips, or valleys.
Recommended Drain Option-Transition to PVC Pipe
Cut a piece of 3/4" OD PVC that is approx. 6”long.
Insert the open end of the tubing into the 3/4" pipe so that it does not extend into the elbow
fitting. For proper flow, a minimum downward slope of 1”per 10' run is required.
(Note: If a proper downward angle is not possible, then it is recommended to use a
PureAiro DSC 55S which includes an integrated pump. Alternatively you can use an
external condensate pump).
Support the PVC tubing so that it maintains a
smooth downward flow to drain.
Always test the drain before leaving the
installation area.
STEP #3: PLUG UNIT INTO 15 AMP GROUNDED CIRCUIT.
Use this button to turn the dehumidifier on and off. Press once to turn machine on. You will
hear 2 beeps and the
light will illuminate green. Press the power button a second time and
you will hear one beep as the machine shuts down. Note that there is a one minute fan delay
on shut - down.
POWER KEY
Key Functions
88
Power
Cont.
Defrost
Comp
Central control
Drain Tube- 12 inches Long.19 mm OD.
PureAiro
DSC 55S
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Insert PVC into a 3/4”elbow, then attach to a 3/4" OD length of PVC to drain.
(Note: Keep the length of PVC drain pipe to a minimum)
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