OPERATION INSTRUCTIONS
When configuring the ATW-IOT-01
device for one user account, the device
name and password are required.
These details are available on the label
placed on the plastic cover of the device.
7.1 Button functionality
Button 1 Button 2
15 sec
15 sec
15 sec
7.2 WI-FI and password reset
In case new password is forgotten,
perform a WiFi and password reset to
restore the default settings. Once done,
you will be able to configure again the
device.
7.3 Factory reset
Factory reset of the IOT + Cloud data
(Button 1 15 sec + Button 2 15 sec) is
required in case:
• IDU/ODU H-Link Address of Hitachi
Heating Unit has changed.
• ATW-IOT-01 device has been
connected to different IDU/ODU unit
than its original configuration.
Whenever factory reset procedure has
been done, device is ready to be linked
again to any installation as if it was a
new product out of the box.
7.4 LEDs description
◆ Green Led status (Cloud connection)
Waiting status:
EN
PMML0635 rev.3 - 04/2024
Action
Wifi and
-
password reset
Factory reset of
the IOT + Cloud
data
ON Time
500 ms
Device Status
ATW-IOT-01 is not linked to any
account and it is not connected to the
cloud.
Normal operation:
ON Time
Always
Device Status
ATW-IOT-01 is connected to the cloud
and running normally
Connection Alarm:
ON Time
500 ms
Device Status
ATW-IOT-01 has lost communication
with the cloud (WI-FI lost, internet
connection lost...)
◆ Yellow Led status (Remote update)
Normal operation:
ON Time
-
Device Status
ATW-IOT-01 is connected to the cloud
and running normally
7.5 Fail-Safe Mode Setup
In case communication issues are
occurring with ATW-IOT-01 device (loss
of the connection to cloud or of HLINK
connection with the Heating unit), the
fail-safe protection of the system will let
the Heating system continue operating
with the last communicated setpoints.
OFF Time
4 s
OFF Time
-
OFF Time
500 ms
OFF Time
Infinite
4