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DEHUMIDIFIER OPERATION
(EZDR Series)
On EZDR units, the dehumidifier unit has a two-position
switch (Lo - 35 CFM / Hi - 55 CFM). The factory default
setting is 35 CFM for 7k BTU units (unless otherwise
specified on the sales order) and 55 CFM for all other
BTU units. Set the switch to the desired CFM.
VENTILATION CONTROL
The ventilation control lever is located at left side of unit,
behind the front panel.
NOTE: The vent door shipping tape must be removed
before using vent control lever (see Fig 11 and Fig 12).
When in CLOSE position, only the air inside the room is
circulated and filtered.
When in OPEN position, some outdoor air will be drawn
into room, this will reduce heating or cooling efficiency.
Fig 11. Shipping Tape Location
Fig 12. Shipping Screw Location
The vent control allows outside air to be drawn into the
conditioned area. This outside air can provide ventilation
when the blower is operating, but it will increase the
heating or cooling load and operating costs.
To obtain access to the vent control:
1.
Remove the cabinet front (see Front Removal).
2.
Remove the shipping screw (if installed) from the vent
door.
3.
Remove the label (if present) from over the vent control
lever on the left side of the chassis.
4.
Rotate the vent control lever to either open or close
the damper.
Fig 13. Vent Door Lever Positions
MAINTENANCE AND CLEANING
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY
BE PRESENT, FAILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
MONTHLY MAINTENANCE AND
CLEANING
Intake Air Filters
To properly maintain the operational performance of
your PTAC unit, it is extremely important that the inlet
air filters be cleaned once per month or more often if
operated in dusty or dirty locations or conditions. The
intake air filters are constructed of durable
polypropylene. The air intake filters can be easily
inserted into the cabinet front, using the filter guides.
Before cleaning the intake filter, turn the unit off by
setting the mode switch to the OFF position. Filter
should be cleaned as required.
Remove shipping
screw if present
Shipping Tape
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