EDUS341411-N
Installation Manual
Installation of Outdoor Units
51
3P362438-1B
41
3P362438-1B English
Malfunction code
Contents
Solution
Main
code
Sub code
Master/sub 1/sub 2
U2
01/08/11
INV1 voltage power shortage or open phase
r
Check if power supply is within range.
r
Correct phase order.
02/09/12
INV1 reversed or open power supply phase
r
Check if power supply is within range.
r
Correct phase order.
22/25/28
INV2 voltage power shortage or open phase
r
Check if power supply is within range.
r
Correct phase order.
23/26/29
INV2 reversed or open power supply phase
r
Check if power supply is within range.
r
Correct phase order.
U3
03
04
05
06
07
08
r /CNHWPEVKQPEQFG5[UVGOVGUVTWPPQV[GVGZGEWVGF
(system operation not possible).
r
Reversed or open power supply phase
r
Faulty wiring to Q1/Q2 or indoor – outdoor
r 'ZGEWVGU[UVGOVGUVTWP
r
Correct phase order.
r
Check (Q1/Q2) wiring.
U4
01
Faulty wiring to Q1/Q2 or indoor – outdoor
Connect transmission wiring of indoor unit to “TO
IN/D UNIT (F1, F2)” and transmission wiring of other
outdoor unit to “TO OUT/D UNIT (F1, F2)”.
03
Malfunction of connected indoor unit.
Check the malfunction code of indoor unit and resolve it.
04
System test run abnormal ending
'ZGEWVGVGUVTWPCICKP
U7
01
Faulty wiring to Q1/Q2 or indoor – outdoor
Connect transmission wiring of indoor unit to “TO
IN/D UNIT (F1, F2)” and transmission wiring of other
outdoor unit to “TO OUT/D UNIT (F1, F2)”.
02
Faulty wiring to Q1/Q2 or indoor – outdoor
Connect transmission wiring of indoor unit to “TO
IN/D UNIT (F1, F2)” and transmission wiring of other
outdoor unit to “TO OUT/D UNIT (F1, F2)”.
11
r
Too many indoor units are connected to F1/F2 line
r
Faulty wiring between units
r
Check indoor unit amount and total capacity con-
nected.
r
Check connection.
U9
01
System mismatch. Wrong type of indoor units com-
bined (R410A, R407C, Mini-split, etc).
Indoor unit malfunction.
Check if other indoor units have malfunction and con-
ƂTOKPFQQTWPKVOKZKUCNNQYGF
UA
03
Connection malfunction over indoor units or type
mismatch (R410A, R407C, Mini-split, etc).
Check if other indoor units have malfunction and con-
ƂTOKPFQQTWPKVOKZKUCNNQYGF
18
Connection malfunction over indoor units or type
mismatch (R410A, R407C, Mini-split, etc).
Check if other indoor units have malfunction and con-
ƂTOKPFQQTWPKVOKZKUCNNQYGF
20
Wrong combination (different series (e.g. RXYQ and
4';3QTFKHHGTGPVV[RGGI2V[RGCPF6V[RG
Correct the units combination.
31
49
Wrong combination of outdoor units.
Correct the units combination.
UH
01
Auto address malfunction (inconsistency)
Check if transmission wired unit amount matches with
powered unit amount (by monitor mode) or wait till
KPKVKCNK\CVKQPKUƂPKUJGF
UF
01
Auto address malfunction (inconsistency)
Check if transmission wired unit amount matches with
powered unit amount (by monitor mode) or wait till
KPKVKCNK\CVKQPKUƂPKUJGF
05
Stop valve closed or wrong (during system test run)
Open stop valves.
Содержание VRV IV RXYQ TYDN Series
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Страница 66: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 67 C 3P113151C 7 8 1 1 1 8...
Страница 67: ...REFNET Joint and Header EDUS341411 N 68 Installation of Outdoor Units KHRP26M73HU 3P185500...
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Страница 78: ...EDUS341411 N Caution Label Installation of Outdoor Units 79 6 Caution Label 6 1 RXYQ72TYDN RXYQ72TTJU 2P361359C...
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