Daikin Altherma EBLQ011CA3V3 - Inverter PCB; Double Fan Outdoor Unit - Single Phase

2 Components
Service manual
61
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
INFORMATION
Use the wiring diagram and connection diagram for correct
installation of the connectors, see "5.2Wiring diagram"on
page101.
WARNING
When reconnecting a connector to the PCB, do NOT apply
force, as this may damage the connector or connector pins
of the PCB.
Is the problem solved? Action
Yes No further actions required.
No Return to "2.14.1Checking
procedures"on page58 of the
hydro PCB and continue with the
next procedure.
To adjust the wiring of the hydro PCB
1 Adjust the wiring according to the wiring diagram and
connection diagram, see "5.2Wiring diagram"on page101.
2 Check that all connectors are fully plugged‑in. All colour codes
MUST correspond.
3 Check that no connectors are damaged.
Is the problem solved? Action
Yes No further actions required.
No Return to "2.14.1Checking
procedures"on page58 of the
hydro PCB and continue with the
next procedure.
To remove a fuse of the hydro PCB
1 Remove the fuse from the PCB.
a
a Fuse
2 To install a fuse on the hydro PCB, see "2.14.2 Repair
procedures"on page60.
To install a fuse on the hydro PCB
1 Install the fuse on the correct location on the PCB.
CAUTION
Make sure the fuse is plugged‑in correctly (contact with the
fuse holder).
a
a Fuse
Is the problem solved? Action
Yes No further actions required.
No Return to "2.14.1Checking
procedures"on page58 of the
hydro PCB and continue with the
next procedure.
2.15 Inverter PCB
NOTICE
Select the correct type.
2.15.1 Double fan outdoor unit – single phase
Checking procedures
As the inverter PCB is integrated in the main PCB of the unit, see
"2.17Main PCB"on page66 for the other check procedures.
To perform an electrical check of the inverter PCB
Prerequisite: Turn OFF the unit via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.19 Plate
work"on page77.
1 Open the compressor insulation.
2 Measure the voltage on the inverter on the smoothing capacitor
C4. Wait until the voltage drops below 10VDC.
WARNING
The smoothing capacitor MUST discharge below 10VDC
before disconnecting the Faston connectors from the
compressor wiring terminals. Risk of electrocution.
3 Disconnect the Faston connectors from the compressor wire
terminals U, V and W.
INFORMATION
Note the position of the Faston connectors on the
compressor wire terminals to allow correct connection
during installation.
4 Connect the Faston connectors to the Inverter Analyzer (SPP
number 1368521).