P5417009-rev.6
75
(c) Start the Test Run.
●
Press “
On/Off”. The Test Run operation will start. The operation mode, the airflow volume,
the airflow direction and the Test Run time can be set on the Test Run screen. Select the item by
pressing “
” and set the detail by pressing “
”.
The default setting for the Test Run time is a two-hour OFF timer.
●
Check the temperature conditions.
Unit operation cannot be performed if the conditions are out of range.
Refer to the table below for a working range.
Example
The cooling operation is not performed if the outdoor temperature is below -4
o
F DB (-20
o
C DB).
(d) Press “ ” or “ ”, select “LOUV.” and select “ ” (auto swing) by pressing “ ” or “ ”.
The auto-swing operation will start. Check the operating sound at the louvers.
If an abnormal sound emanates from the louvers, it may be caused by a deformation in the
decorative panel due to incorrect installation. In this case, carefully reinstall the decorative panel
without further damage. If no weird sounds are generated, press “ ” or “ ” again to halt the auto-
swing operation.
(e) Though the temperature detections by the thermistors are invalid, the protection devices are
valid during the Test Run. If an alarm is triggered, refer to Table 9.2, Alarm Code and perform
troubleshooting. Then perform the Test Run again
(f) According to the label “Checking Method by Seven-Segment Display” attached to the back side
of the service cover of the outdoor unit, check the temperature, the pressure and the operation
frequency of the specified portions, and check the number of the connected indoor units on
7-segment displays.
(g) To finish the Test Run, wait two hours (as a default setting) or press “
On/Off” switch again.
●
With the operation LED flashing two seconds ON and two seconds OFF, this is an indication that
the system is searching for irregularities in communication between indoor units and the wired
controller. This could result in loose or disconnected wires, components, and incorrect wiring.
● A small sound may be heard from the outdoor unit after turning ON at the power supply
because the electrical expansion valve is activated to adjust the opening. Therefore, there is no
mechanical fault with the unit.
● Sound may be emitted from the outdoor unit for a few seconds after running or stopping the
compressor, starting or finishing the defrosting, and so on. It generates because of the pressure
difference inside the compressor piping. Therefore, there is no problem with the unit.
Do NOT run the air conditioner units to check the electrical wiring until the Test Run preparations
have been completed.
Temperature
Cooling Operation Range
Indoor
o
F WB
(
o
C WB)
59 (15) ~ 73 (23)
Outdoor
o
F DB
(
o
C DB)
23 (-5) ~ 122 (50)
with Snow Protection Hood
o
F DB
(
o
C DB)
14 (-10) ~ 109 (43)
with Low Ambient Kit
o
F DB
(
o
C DB)
-10 (-23) ~ 109 (43)
Heating Operation Range
Indoor
o
F DB
(
o
C DB)
59 (15) ~ 80 (27)
Outdoor
o
F WB
(
o
C WB)
-13 (-25) ~ 59 (15)
Cooling & Heating
Operation Range
Cooling
Indoor
o
F WB
(
o
C WB)
59 (15) ~ 73 (23)
Outdoor
o
F DB
(
o
C DB)
23 (-5) ~ 75 (24)
with Snow Protection Hood
o
F DB
(
o
C DB)
14 (-10) ~ 75 (24)
with Low Ambient Kit
o
F DB
(
o
C DB)
-10 (-23) ~ 75 (24)
Heating
Indoor
o
F DB
(
o
C DB)
59 (15) ~ 80 (27)
Outdoor
o
F WB
(
o
C WB)
22 (-6) ~ 59 (15)
with Snow Protection Hood
o
F WB
(
o
C WB)
12 (-11) ~ 59 (15)
with Low Ambient Kit
o
F WB
(
o
C WB)
-11 (-24) ~ 59 (15)
DB: Dry Bulb, WB: Wet Bulb
Содержание YVAHR072B32S
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