Led Light Introduction; Dip Switch Introduction - Haier AV08NMSETA Service Manual

LED light introduction

• LED1: malfunction lamp of indoor unit.
This lamp not light under normal condition; once indoor unit occurs malfunction this lamp will flicker, flicker
times indicate the corresponding failure code.
• LED2, LED4: communication lamp between indoor units and outdoor units.
These two lamps flicker alternately under normal condition; once occurs the communication faulty, these
two lamps will light or not light at the same time.
• LED3: communication lamp between outdoor PCB and module.
The lamp flicker frequency is 0.5s/time under normal condition; once occurs the communication faulty, the
lamp flicker frequency is 1s/time.

Dip switch introduction

BM1 is usually set by the personnel on site; BM2 is usually used in the factory.
BM1 Introduction
BM1 Definition
BM1_1 Indoor unit Qty. lock
Start up after
BM1_2
preheat 2 hours
BM1_3 Compressor brand
Piping length
BM1_4 selection
(Single way total pipe
BM1_5
length)
BM1_6
Defrosting judge
condition
BM1_7
Quiet running
BM1_8
function
Note:
• The number of indoor units must be locked by the BM1_1 (OFF to ON), otherwise the outdoor unit cannot be
started.
• The outdoor unit cannot be started if the locked indoor unit Qty. is not same as Qty. of real indoor units.
OFF Searching indoor unit
ON Lock indoor unit Qty.
Unit shall startup after 2 hours preheat or oil temp. reaches the
OFF
target value
Power
Unit shall startup after 2 hours preheat or oil temp. reaches the
on, then target value (note: here the target value is lower than the target
value when the BM1-2 on "OFF" position).
OFF→ON
OFF Default (MHI compressor)
[4] [5]
OFF OFF
OFF ON
ON OFF
ON ON
[6] [7]
OFF OFF
OFF ON
ON OFF
OFF Quiet running function is unavailable (default)
ON Quiet running function is available
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Introduction
Piping length selection
Medium piping length:100m ＜ L ≤200m (default)
Long piping length: L > 200m
Short piping length: L ≤ 100m
Medium piping length:100m ＜ L ≤200m
Defrosting judge condition
Default setting (Normal installation condition )
Low humidification in winter condition
High humidification in winter condition (when outdoor
unit defrosting is not clear, can set the dip switch on
this position)