Daikin VRV IV RXYQ TYDN Series Engineering Data page 50

EDUS341411-N
Malfunction code
Main Sub code
code Master/sub 1/sub 2
U2 01/08/11
02/09/12
22/25/28
23/26/29
03
U3
04
05
06
07
08
U4 01
03
04
U7 01
02
11
U9 01
UA 03
18
20
31
49
01
UH
01
UF
05
41
Installation of Outdoor Units
Contents
INV1 voltage power shortage or open phase
INV1 reversed or open power supply phase
INV2 voltage power shortage or open phase
INV2 reversed or open power supply phase
(system operation not possible).
Reversed or open power supply phase
Faulty wiring to Q1/Q2 or indoor – outdoor
Faulty wiring to Q1/Q2 or indoor – outdoor
Malfunction of connected indoor unit.
System test run abnormal ending
Faulty wiring to Q1/Q2 or indoor – outdoor
Faulty wiring to Q1/Q2 or indoor – outdoor
Too many indoor units are connected to F1/F2 line
Faulty wiring between units
System mismatch. Wrong type of indoor units com-
bined (R410A, R407C, Mini-split, etc).
Indoor unit malfunction.
Connection malfunction over indoor units or type
mismatch (R410A, R407C, Mini-split, etc).
Connection malfunction over indoor units or type
mismatch (R410A, R407C, Mini-split, etc).
Wrong combination (different series (e.g. RXYQ and
Wrong combination of outdoor units.
Auto address malfunction (inconsistency)
Auto address malfunction (inconsistency)
Stop valve closed or wrong (during system test run)
Solution
Check if power supply is within range.
Correct phase order.
Check if power supply is within range.
Correct phase order.
Check if power supply is within range.
Correct phase order.
Check if power supply is within range.
Correct phase order.
Correct phase order.
Check (Q1/Q2) wiring.
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)".
Check the malfunction code of indoor unit and resolve it.
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)".
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)".
Check indoor unit amount and total capacity con-
nected.
Check connection.
Check if other indoor units have malfunction and con-
Check if other indoor units have malfunction and con-
Check if other indoor units have malfunction and con-
Correct the units combination.
Correct the units combination.
Check if transmission wired unit amount matches with
powered unit amount (by monitor mode) or wait till
Check if transmission wired unit amount matches with
powered unit amount (by monitor mode) or wait till
Open stop valves.
3P362438-1B English
Installation Manual
3P362438-1B
51