Atlantic WOYG112LHT, Installation And Commissioning Instructions

Page: 73 / 92

9 Fault diagnostic
Depending on whether the fault is on the outdoor unit or
the hydraulic module, the fault may be advised by the
digital display or the LED on the interface boards.
"
Before carrying out any work, ensure that the general electrical power supply is switched off.
"
Antifreeze protection is not provided when the heat pump is not powered up.
9 .1 Fault display on the hydraulic module
The faults or breakdowns of the hydraulic module are
advised on the display unit of the user interface.
The light comes on during an operating anomaly.
The display shows the
symbol.
Press the button to obtain the details of the origin
of the fault
When the error is resolved, the faults are reset
automatically.
The appliance may stop and restart automatically when
the problem disappears.
"
Maintenance code
Code 22 indicates a low hydraulic pressure between
0.8 and 0.5 bar. Add water until the hydraulic system
pressure reaches 1.5 bar.
"
Safety mechanism
Certain anomalies will cause the boiler's safety
mechanism to switch on (error codes 78, 128 and 133).
In this case, reset the boiler by pressing the red button
on the side of the control panel (see figure 63 ).
Note:
An anomaly on the outdoor unit may case an error
signal (the "Err" light comes on).
In this case:
- the domestic hot water will be produced,
- the heating will be stopped.
Alert the heating engineer
Hydraulic module: Heat pump regulator faults (RVS) visible on the digital display.
Error number Error description Error position
Heat pump
operation despite
the error
- No connection.
The polarity of the ambient
sensor has not been respected.
No
10 Outdoor sensor. B9 Yes
33 Heat pump start sensor temperature error. B21 Yes
44 Heat pump start sensor temperature error. B71 Yes
50 DHW temperature sensor. B3 Yes
60 Ambient sensor 1. Yes
65 Ambient sensor 2. Yes
105 Maintenance message. Yes
121 Heating circuit 1 start temperature not reached. Yes
122 Heating circuit 1 start temperature not reached. Yes
127 Anti-legionella temperature not reached. Yes
369 External fault (safety device) No
370
Outdoor unit error
(during a start-up phase, see § "Commissioning").
See below and page 76 or
page 77
No
figure 63 - Reset button
Installation and commissioning instructions "1485 - EN" - 73 -
Heat pump alféa hybrid duo gas