Introduction; Alarm Table - Daikin UATYA-BBAY1 Manual De Operación

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5.1 Introduction

The controller is programmed to manage the components of the unit safely, by adjusting their operation as conditions
change with the aim of maintaining uninterrupted service.
Within the scope of this control function, the controller will partially or completely limit operation of the unit when
hazardous conditions are approaching.
A click on this icon gives access to the Alarms menu. If the icon is red, at least one alarm is active; no alarm
is active if it is grey.
The codes with their descriptions for the various conditions that can appear in the alarm menu are given in the next
chapter.
If you notice there are error messages with the unit running and with it stopped, you should promptly inform the
customer support centre and given them the code and the message description and wait for their instructions.
Do not take initiatives before consulting the customer support centre.

5.2 Alarm table

A list of alarm codes with their descriptions is given below.
Code
Description
AL1
Internal memory error alarm
Air flow alarm from differential pressure
AL5
transducer
Circuit 1 - High pressure alarm from pressure
AL6
switch
Circuit 2 - High pressure alarm from pressure
AL7
switch
Circuit 1 - High pressure alarm from
AL10
transducer
Circuit 2 - High pressure alarm from
AL11
transducer
AL12
High humidity alarm of return air
AL13
Low humidity alarm of return air
AL14
Dirty filters alarm
AL17
BMS - Communication error alarm
Circuit 1 - Compressor 1 - Thermal overload
AL18
alarm
Circuit 1 - Compressor 2 - Thermal overload
AL19
alarm
Circuit 2 - Compressor 1 - Thermal overload
AL20
alarm
Circuit 2 - Compressor 2 - Thermal overload
AL21
alarm
AL26
Temperature limitation activated of return air
AL27
Low temperature alarm of external air
AL28
High temperature alarm of return air
Translation from original instructions
Packaged Rooftop
36
Code
Description
AL29
Low temperature alarm of return air
AL30
High temperature alarm of supply air
AL31
Low temperature alarm of supply air
AL32
Temperature limitation activated of supply air
Circuit 1 - External ventilation - Thermal
AL33
overload alarm
Circuit 2 - External ventilation - Thermal
AL34
overload alarm
AL35
Supply ventilation - Thermal overload alarm
AL36
Return ventilation - Thermal overload alarm
AL51
Circuit 1 - Compressor 1 - Inverter tripped
AL52
c.pCOe 1 - Communication error alarm
AL53
c.pCOe 2 - Communication error alarm
AL54
c.pCOe 3 - Communication error alarm
AL55
Incorrect phase sequence alarm
Circuit 1 - Compressor 1 - High discharge
AL57
temperature alarm
Circuit 2 - Compressor 1 - High discharge
AL58
temperature alarm
Circuit 1 - Compressor 2 - High discharge
AL59
temperature alarm
Circuit 2 - Compressor 2 - High discharge
AL60
temperature alarm
We reserve the right to make changes without any prior notice.
4P645203-1
UATYA

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