P00877Q
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have been completed.
(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
IUHTXHQF\RIWKHVSHFL¿HGSRUWLRQVDQGFKHFNWKHQXPEHURIWKHFRQQHFWHGLQGRRUXQLWVRQ
7-segment displays.
J 7R¿QLVKWKH7HVW5XQZDLWWZRKRXUVDVDGHIDXOWVHWWLQJRUSUHVV³
On/Off” switch again.
Ɣ
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the system is searching for irregularities in communication between indoor units and the wired
controller. This could boil down to loose or disconnected wires, components, and incorrect wiring.
Ɣ $VPDOOVRXQGPD\EHKHDUGIURPWKHRXWGRRUXQLWDIWHUWXUQLQJ21DWWKHSRZHUVRXUFH
because the electrical expansion valve is activated to adjust the opening. Therefore, there is no
mechanical fault with the unit.
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FRPSUHVVRUVWDUWLQJRU¿QLVKLQJWKHGHIURVWLQJDQGVRRQ,WJHQHUDWHVEHFDXVHRIWKHSUHVVXUH
difference inside the compressor piping. Therefore, there is no problem with the unit.
< Test Run from Outdoor Unit Side >
The procedures for the test run from the outdoor unit side are shown below. Setting this DIP switch is
possible with the power source ON.
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Ɣ 'RQRWDWWDFKRUGHWDFKDVHUYLFHFRYHUZKHQWKHSRZHUVRXUFHIRUWKHRXWGRRUXQLWLVVXSSOLHGDQG
the outdoor unit is operated.
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DSW4
Switch for Setting of Service Operation and Function
1. Test Run
2. COOL/HEAT Setting
(ON: Heating Operation)
3. OFF (Fixed)
4. Manual Compressor OFF
5. OFF (Fixed)
6. OFF (External Input/Output Setting)
ON
OFF
1 2 3 4 5 6
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The darkened square
indicates the position
of the DIP switch.
Содержание (H,Y)VAHP072B31CW
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