24
32801000302
Specifications subject to change without notice.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Never use the system compressor as a vacuum pump.
CAUTION
!
Refrigerant tubes and indoor coil should be evacuated using the
recommended deep vacuum method of 500 microns. The alternate
triple evacuation method may be used if the procedure outlined below
is followed. Always break a vacuum with dry nitrogen.
Final Tubing Check
IMPORTANT:
Check to be certain factory tubing on both indoor and
outdoor unit has not shifted during shipment. Ensure tubes are not
rubbing against each other or any sheet metal. Pay close attention to
feeder tubes, making sure wire ties on feeder tubes are secure and tight.
START−UP
Test Operation
Perform test operation after completing gas leak and electrical safety
check (see Fig. 49).
Infrared receiver
Timer indicator
Alarm indicator
PRE-DEF
(pre-heating/defrost)
indicator
Manual button
Operation indicator
LED display
Fig. 49
-
IR Receiver Display Panel
1. Press MANUAL on the IR receiver located in the control box to
begin testing.
NOTE: A protection feature prevents air conditioner from being
activated for approximately 3 to 4 minutes.
2. Push MODE, select COOLING, HEATING, FAN mode to
check if all functions work correctly.
3. To run the test using the MANUAL button in the indoor unit:
(3.) Open front panel of the indoor unit;
(4.) Push the manual switch once to energize the unit. The
set conditions of manual operation are as follows:
· Preset set point: 76
_
F (24
_
C)
· Fan speed: AUTO
· Discharge air direction: Pre−set position based on
operation in “Cool” or “Heat” mode.
4. Be sure to set the manual switch to OFF (by pushing it twice
again) after finishing the test operation.
SYSTEM CHECKS
1. Conceal the tubing where possible.
2. Ensure the drain tube slopes downward along its entire length.
3. Ensure all tubing and connections are properly insulated.
4. Fasten tubes to the outside wall, when possible.
5. Seal the hole through which the cables and tubing pass.
INDOOR UNIT
1. Do all remote control buttons function properly?
2. Do the display panel lights work properly?
3. Does the air deflection louver function properly?
4. Does the drain work?
Explain Following Items To Customer (with the aid of the Owner’s
Manual):
1. How to turn air conditioner on and off; selecting COOLING,
HEATING and other operating modes; setting a desired
temperature; setting the timer to automatically start and stop air
conditioner operation; and all other features of the remote
control and display panel.
2. How to remove and clean the air filter.
3. How to set air deflection louver.
4. Explain care and maintenance.
5. Present the owner’s manual and installation instructions to cus-
tomer.
FAN MOTOR MAINTENANCE
The rear ventilated panel is used as an example.
Motor Maintain:
1. Take off the ventilated panel.
2. Take off the blower housing.
3. Take off the motor.
Motor
Blower housing
Ventilated panel
Fig. 50
-
Maintain the Motor
