Faults And Malfunctions; Emergency Operation; Manual Operation; Error Protocol - Daikin RoCon+ HP EHSX04P30D Manual De Instrucciones

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8

Faults and malfunctions

DANGER: RISK OF ELECTROCUTION
Electrostatic charges can lead to voltage arcing that can
destroy the electronic components.
▪ Ensure potential equalisation prior to touching the
switching panel PCB (e.g. by touching the switching
panel holder).
The electronics of the Daikin Altherma EHS(X/H) indicate an error by
red illumination of the status display, the appearance of the error
screen on the display (see
Chap.
ror symbol on the start screen. An integrated error memory stores up
to 15 error messages (see
Chap.
INFORMATION
A list of all error codes can be found in the Daikin Altherma
EHS(X/H) installation and maintenance instructions,
chapter "Errors, malfunctions, messages".
Troubleshooting: Error code E90XX
An error reset can be performed. This can be started from the cur-
rently displayed error screen. If the error screen has been exited, it
can be recalled via [→ Main menu → Error → Screen].
If the same error is displayed again shortly, the cause of the error
must be found and rectified by a specialist. In the meantime, emer-
gency operation may be maintained. Emergency operation can be
permitted via [→ Main menu → Error → Emergency operation], see
Emergency operation. If emergency operation has not been permit-
ted, it can be started from the current error screen.
Troubleshooting: Other error codes
The cause of the error must be found and rectified by a specialist. In
the meantime, emergency operation may be maintained. Emergency
operation can be permitted via [→ Main menu → Error → Emer-
gency operation], see Emergency operation. If emergency operation
has not been permitted, it can be started from the current error
screen.
INFORMATION
To ensure that the error has not been caused by incorrect
settings, set all the parameters back to the factory settings
before possible replacement of components
4.5.9).
If it is not possible to determine the cause of the fault,
please consult a service technician.
Please have the essential device data ready for this:
Type and manufacturer number of the Daikin Altherma
EHS(X/H) (see heat pump nameplate) as well as the soft-
ware versions of:
a: Control panel RoCon+ B1 [→ Main menu → Information
→ Values → Software no. B1/U1]
b: RoCon BM2C PCB [→ Main menu → Information
→ Values → Software no. controller]
On optional RoCon system components:
EHS157034 [Sw No B1/U1]
EHS157068 [Sw Nr mixing valve]
8.1

Emergency operation

[→ Main menu → Error → Emergency operation]
If the heat pump fails, the backup heater or another external heat
generator can be used as an emergency heater. If [Emergency oper-
ation] is set to "Yes", in the event of an error, emergency operation is
automatically activated. Otherwise, emergency operation can only
be started in the event of an error via the error screen.
Daikin RoCon+ HP
Daikin Controller RoCon+ HP
008.1444299_01 – 09/2018 – EN
8.4) and the appearance of the er-
8.3).
(see Chap.
8
Faults and malfunctions
If emergency operation is started via the error screen, the [Emer-
gency operation] parameter remains set to "Yes", i.e. emergency op-
eration is also started automatically in the event of future errors. If
this is not desired, the [Emergency operation] parameter must be re-
set to "No" after the error has been corrected.
8.2

Manual Operation

[→ Main menu → Error → Manual operation]
In manual operation, the heat pump is controlled to a fixed feed tem-
perature. Manual operation should only be used for diagnostic pur-
poses. Manual operation is started by setting the [Manual operation
status] parameter to "Active". The desired feed temperature is set by
[Temperature, manual operation] parameter.
With hydraulically controlled priority operation for domestic hot water
preparation, it must be ensured that the feed target temperature set
in manual operation is sufficient to achieve the stored hot water tar-
get temperature ([Hot water temp. setpoint 1] parameter).
8.3

Error protocol

[→ Main menu → Error → Protocol]
The error protocol can be read in this menu. The most recent error
message comes first. All previous messages are moved backwards
with each new entry in the position. The 16th error message is de-
leted if a new error message arrives. The error protocol can only be
deleted by Service.
The protocol lists
▪ the error code,
▪ the PCB associated with the error (A1P or BM2, see Daikin
Altherma EHS(X/H) Installation and maintenance instructions)
▪ Date and time when the error occurred.
8.4

Error screen

[→ Main menu → Error → Screen]
Fig. 8-1
Error screen
If an error occurs, the error screen is displayed. This displays the er-
ror code, an explanatory text and the date and time when the error
occurred. Depending on the type of error, a reset can be carried out
in the error screen by selecting the corresponding icons and/or
emergency operation can be started (see
Back icon closes the error screen and the display returns to the start
screen.
If an error has occurred, the error screen can be called up manually
via [→ Main menu → Error → Screen].
Chap.
8.1). Selecting the
Operating Instructions
49

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