4.
Tilt the non-compressor side of the unit up no higher
than 45 degrees and allow water to drain out the other side
of the unit.
5.
Remove excess water left in the base pan by wiping the
base pan with a dry cloth.
6. Remove the water-tight seal from the motor and
control panel area.
7.
Reinstall unit back into wall sleeve.
8.
Allow unit to dry for 24 hours before reapplying power.
When power is reapplied test unit for proper operation.
9. Place a non-acidic algaecide in the base pan to inhibit
bacteria growth. Ensure the algaecide is compatible with
wet coil operation and is not corrosive to the coil.
Clearance Check
Clearances around the unit should also be checked to
make sure that the intake air and discharge air paths have
not become blocked or restricted. A minimum of eight
inches clearance is needed from unit to furniture, beds, or
other objects for proper operation. Restricted discharge or
intake air will reduce the unit's operational performance. In
severe airflow restrictions damage can occur to unit
components such as the compressor, electric heater or fan
motor.
NORMAL OPERATING SOUNDS
AND CONDITIONS
Water trickling sounds
Water is picked up and distributed over the coil. This
improves the efficiency and helps with water removal
.
Water dripping
Water will collect in the base pan during high humidity
days. This can cause overflow and drip from the outside of
the unit.
Air sounds
The fan cycle switch sets the operational mode of the fan.
In the ON position the fan will run continuously whenever
power is applied in this mode. In the AUTO position, the
fan will cycle on and off with the compressor or electric
heater.
Starting delay
You may notice a few minutes delay in the starting if you
try to restart the unit too soon after turning it off or if you
adjust the thermostat right after the compressor has
shut off. This is due to a built
–
in delay to protect the
compressor.
Buzzer
Response
The buzzer will chime “Di”(0.1 sec) as response when
receiving the effective order from key pad control and
remote control.
DIAGNOSTIC CODES
The Diagnostic Maintenance provides detailed
information on PTAC control operation and operational
status including present modes, failures , airflow restriction
warnings , operating temperatures, and past failures.
To enter Diagnostic Status Report mode, press and hold
the down arrows and, while hold press the FAN SPEED
key for a period of five (5) seconds.
The meaning of figure on display pad is as below:
X.X----(0~4: time of protection)
└ ━
is protection mode(1: anti-frost; 2: overheat; 3: high
pressure; 4:anti-freezing)
-
12
-
Failure
code
E2
E3
E5
E8
E9
Content
of
defect
Indoor
coil
temperature
sensor
failure
Indoor
temperature
sensor
failure
Outdoor
coil
temperature
sensor
failure
Overheating
protection
/
defrosting
High
pressure
protection
CAUTION!
HIGH PRESSURE AND HIGH TEMPERATURE CLEANING IS
NOT RECOMMENDED.
DOING SO COULD DAMAGE THE ALUMINUM FIN STOCK
AND ELECTRICAL COMPONENT.
