To Access Mode 1 Or 2; To Use Mode 1; To Use Mode 2; Mode 1: Monitoring Settings - Daikin SERHQ020BAW1 Installer And User Reference Manual

7.2.4

To access mode 1 or 2

After the unit is turned ON, the display goes to its default situation.
From there, you can access mode 1 and mode 2.
Initialisation: default situation
NOTICE
Be sure to turn on the power 6 hours before operation in
order to have power running to the crankcase heater and
to protect the compressor.
Turn on the power supply of the outdoor unit and the indoor unit.
After initialisation, the display indication state will be as below
(default situation when shipped from factory).
Outdoor unit
If the default situation is not displayed after 10~12 minutes, check
the malfunction code. Solve the malfunction code accordingly.
The HAP LED flashes to indicate normal microcomputer operation.
Switching between modes
Use BS1 to switch between the default situation, mode 1 and
mode 2.
a
b c
a Default situation (H1P OFF)
b Mode 1 (H1P flashing)
c Mode 2 (H1P ON)
BS1 Press BS1.
BS1 [5 s] Press BS1 for at least 5 s.
INFORMATION
If you get confused in the middle of the process, press BS1
to return to the default situation.
7.2.5

To use mode 1

Mode 1 is used to monitor the status of the unit.
What
Accessing monitoring Once mode 1 is selected (push BS1
mode 1 one time), you can select the wanted
setting. It is done by pushing BS2.
To quit and return to the Press BS1.
initial status
7.2.6

To use mode 2

The master unit should be used to input field settings in
mode 2.
Mode 2 is used to set field settings of the outdoor unit and system.
What
Changing and accessing Once mode 2 is selected (push BS1 for
the setting in mode 2 more than 5 seconds), you can select
the wanted setting. It is done by pushing
BS2.
Accessing the selected setting's value is
done by pushing BS3 1 time.
To quit and return to the Press BS1.
initial status
SERHQ020~032BAW1 + SEHVX20~64BAW
Split packaged air-cooled water chiller
4P508020-1B – 2018.04
Changing the value of the
selected setting in mode 2
7.2.7
In mode 1 (and in default situation) you can read out the following
information:
H2P
H6P
How
How
What
▪ Once mode 2 is selected (push BS1
for more than 5 seconds) you can
select the wanted setting. It is done
by pushing BS2.
▪ Accessing the selected setting's value
is done by pushing BS3 1 time.
▪ Now BS2 is used to select the
required value of the selected setting.
▪ When the required value is selected,
you can define the change of value
by pushing BS3 1 time.
▪ Press BS3 again to start operation
according to the chosen value.

Mode 1: Monitoring settings

Value / Description
Shows the present operation state.
OFF
Normal operation state.
ON
Abnormal operation state.
FLASHING
Under preparation or under test preparation
Shows the status of low noise operation.
OFF
Unit is currently not operating under low noise
restrictions.
ON
Unit is currently operating under low noise
restrictions.
Low noise operation reduces the sound generated by the
unit compared to nominal operating conditions.
Low noise operation can be set in mode 2. There are two
methods to activate low noise operation of the compressor
unit and heat exchanger unit.
▪ The first method is to enable an automatic low noise
operation during night time by field setting. The unit will
operate at the selected low noise level during the
selected time frames.
▪ The second method is to enable low noise operation
based on an external input. For this operation an optional
accessory is required.
Installer and user reference guide
7 Configuration
How
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