20 | Configuration
Installer and user reference guide
125
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10
Stage Display
When turning on the power supply: flashing as indicated.
First checks on power supply are executed (1~2min).
When no trouble occurs: lighted as indicated (8~10min).
Ready for operation: blank display indication as
indicated.
7‑segment display indications:
Off
Blinking
On
In case of malfunction, the malfunction code is displayed on the indoor unit user
interface and the outdoor unit 7‑segment display. Solve the malfunction code
accordingly. The communication wiring should be checked at first.
Access
BS1 is used to switch between the default situation, mode 1 and mode 2.
Access Action
Default situation
Mode 1 Push BS1 one time.
7‑segment display indication changes to:
.
Push BS1 one more time to return to the default
situation.
Mode 2 Push BS1 for at least 5 seconds.
7‑segment display indication changes to:
Push BS1 one more time (shortly) to return to the
default situation.
INFORMATION
If you get confused in the middle of the process, push BS1 to return to the default
situation (no indication on 7‑segment displays: blank, refer to "To access mode 1 or
2"[4124].
20.2.5 To use mode 1
Mode1 is used to set basic settings and to monitor the status of the unit.
What How
Changing and accessing the
setting in mode1
Once mode1 is selected (push BS1 one time),
you can select the wanted setting. It is done by
pushing BS2.
Accessing the selected setting's value is done by
pushing BS3 one time.
To quit and return to the initial
status
Press BS1.