EG
8-5. State at Time of Power ON
• When the power is turned ON, the weekly timer shows the
following display.
Su Mo Tu We Th Fr Sa
PROGRAM
ERROR
OFF
ON
PROGRAM 1
PROGRAM 2
PROGRAM 3
CLOCK
Su Mo Tu We Th Fr Sa
PROGRAM
ERROR
OFF
ON
PROGRAM 1
PROGRAM 2
PROGRAM 3
CLOCK
After 5 sec.
Shows "Su"
No display
Shows the time
elapsed after
power ON
At the time of power ON
When reaming, hold the tube end downward and be sure that
no copper scraps fall into the tube.
(3)
Remove the flare nut from the unit and be sure to
mount it on the copper tube.
(4)
Make a flare at the end of copper tube with a flare
tool.*
*Use “RIGID” or equivalent.
A good flare should have the following characteristics:
• inside surface is glossy and smooth.
• edge is smooth.
• tapered sides are of uniform length.
NOTE
NOTE
9-1. Connecting Tubing Sides
Use of the Flaring Method
Many of the conventional split system air conditioners employ
the flaring method to connect refrigerant tubes which run
between indoor and outdoor units. In this method, the copper
tubes are flared at each end and connected with flare nuts.
Flaring Procedure with a Flare Tool
(1)
Cut the copper tube to the required length with a tube
cutter. It is recommended to cut approx. 30 – 50 cm
longer than the tubing length you estimate.
(2)
Remove burrs at the end of the copper tube with a
tube reamer or file. This process is important and
should be done carefully to make a good flare.
9. HOW TO PROCESS TUBING
Before
After
Copper
tubing
Reamer
Flare nut
Flare tool
Copper
tubing
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