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9.2
Test Run
(1) Check to ensure that the stop valves of the outdoor unit are fully opened and then start the system.
(In case of the combination of base units, check that the stop valves of all the connected outdoor units
are fully opened.)
(2) Perform the test run of indoor units one by one sequentially and then check accordance of the
refrigerant piping system and electrical wiring system. (If the multiple indoor units are operated
simultaneously, the system can not be inspected the system accordance.)
(3) Perform the test run according to the following procedure. Ensure that the test run is carried out
without any problem.
NOTE:
In case of 2-remote control switch (main and sub), firstly perform the test run of the main remote
control switch.
a) Set the "TEST RUN" mode by pressing the "MODE" and "CHECK" switch of controller simultaneously
for at least 3 seconds.
"TEST RUN" is displayed on the LCD.
The total number of the indoor units connected is indicated on the LCD.
Regarding other optional remote control switch (wireless remote control or half-size remote
control), follow "Installation & Maintenance Manual" attached to each optional remote control
switch and perform the test run.
In case that the multiple indoor units are operated simultaneously controlled by one remote
control switch, check the connected number of indoor unit is indicated on LCD.
In case that the indicated number is not correct, the auto-address function is not performed
correctly due to incorrect wiring, the electric noise or etc. Turn OFF the power supply and correct
the wiring after checking the following points; (Do not repeat turning ON and OFF within 10
seconds.)
' Power Supply for Indoor Unit is Not Turned ON or Incorrect Wiring.
' Incorrect Connection of Connecting Cable between Indoor Units or Incorrect Connection of
Controller Cable.
' Incorrect Setting of Rotary Switch and Dip Switch (The setting is overlapped.) on the Indoor
Units PCB.
b) Set the operation mode by pressing "MODE" switch.
c) Press "RUN/STOP" switch.
The operation lamp will be turned ON before the test run starts.
2-hour OFF Timer will be set automatically, and "OFF Timer" and "2HR" will be indicated on
LCD. Although the air flow initial setting is "HI", the setting can be changed
Check the following operation range.
Indoor
Temperature
Outdoor
Temperature
DB: Dry Bulb, WB: Wet Bulb
NOTES:
o
(*) 10
C DB ~ -5
o
(**) -12
C WB ~ -20
Pay attention to the following items while the system is running.
' Do not touch any of the parts by hand at the discharge gas side, since the compressor chamber
and the pipes at the discharge side are heated higher than 90°C.
' DO NOT PUSH THE BUTTON OF THE MAGNETIC SWITCH(ES).
It will cause a serious accident.
Do not touch any electrical components for at least 3 minutes after turning OFF the main switch.
Check that the refrigerant piping setting and electrical wiring setting are for the same system, by
operating the indoor unit one by one.
54
unit
Example when 5 indoor units are connected.
Cooling Operation
o
Minimum
21
C DB / 15
o
Maximum
32
C DB / 23
Minimum
-5
Maximum
43
o
C DB, Operation Control Range
o
C WB, Operation Control Range
o
C WB
o
C WB
o
C DB (*)
o
C DB
Heating Operation
o
15
C DB
o
27
C DB
o
-20
C WB (**)
o
15
C WB
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