18
CHECK FOR TIGHT, DRY SYSTEM
(IF IT HOLDS DEEP VACUUM)
EVACUATE
BREAK VACUUM WITH DRY NITROGEN
WAIT
EVACUATE
RELEASE CHARGE INTO SYSTEM
BREAK VACUUM WITH DRY NITROGEN
EVACUATE
WAIT
A95425
Fig. 41
---
Triple Evacuation Method
Final Tubing Check
IMPORTANT
: Ensure certain factory tubing on both the indoor
and outdoor unit has not shifted during shipment. Ensure the tubes
are not rubbing against each other or any sheet metal. Pay close
attention to feeder tubes, making sure wire ties on the feeder tubes
are secure and tight.
START--UP
Test Operation
Perform a test operation after completing a gas leak and electrical
safety check.
1. Press the “ON/OFF” button on the remote control to begin
testing.
NOTE
: A protection feature prevents air conditioner from being
activated for approximately 3 to 4 minutes.
2. Press MODE and 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 the indoor unit’s front panel;
(4.) Press 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 pressing 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 the tubes to the outside wall, when possible.
5. Seal the hole through which the cables and tubing pass.
INDOOR UNIT
1. Do all the 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?
OUTDOOR UNIT
1. Are there unusual noises or vibrations during operation?
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
customer.
