To Access The Field Setting Components; To Access Mode 1 Or 2 - Daikin VRV IV+ Installer And User Reference Manual

7 | Configuration

7.2.3 To access the field setting components

7.2.4 To access mode 1 or 2

Installer and user reference guide
86
It is not required to open the complete electronic component box to access the
push buttons on the PCB and read out the 7‑segment display(s).
To access you can remove the front inspection cover of the front plate (see figure).
Now you can open the inspection cover of the electrical component box front plate
(see figure). You can see the three push buttons and the three 7‑segment displays
and DIP switches.
a
b
c
a Front plate
b Main PCB with 3 7‑segment displays and 3 push buttons
c Electrical component box service cover
Operate the switches and push buttons with an insulated stick (such as a closed
ball-point pen) to avoid touching of live parts.
Make sure to re-attach the inspection cover into the electronic component box
cover and to close the front plate's inspection cover after the job is finished. During
operation of the unit the front plate of the unit should be attached. Settings are
still possible to be made through the inspection opening.
NOTICE
Make sure that all outside panels, except for the service cover on the electrical
component box, are closed while working.
Close the lid of the electrical component box firmly before turning on the power.
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 all indoor units. When the
communication between indoor units and outdoor unit(s) is established and
normal, the 7‑segment display indication state will be as below (default situation
when shipped from factory).
When turning on the power supply: flashing as indicated.
First checks on power supply are executed (1~2 min).
2×
Stage Display
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10