7 Configuration
Installation manual
36
RWEQ96~432TAYD
∗
+ RWEQ96~432TATJ
∗
VRV W T-Series water-cooled system air conditioner
For those doing pipe work
1
Make sure piping size is correct.
See "4.3 Refrigerant pipe size and allowable length" on page 11
and "4.3.3 To select refrigerant branch kits" on page 12.
2
Make sure insulation work is done.
See "5.5 To insulate the refrigerant piping" on page 25.
3
Make sure there is no faulty refrigerant piping.
See "5.3 Refrigerant piping" on page 20.
7
Configuration
7 .1
Overview: Configuration
This chapter describes what you have to do and know to configure
the system after it is installed.
It contains information about:
▪ Making field settings
▪ Using the leak detection function
INFORMATION
It is important that all information in this chapter is read
sequentially by the installer and that the system is
configured as applicable.
DANGER: RISK OF ELECTROCUTION
7 .2
Making field settings
7 .2 .1
About making field settings
INFORMATION
The LEDs and buttons are located in the refrigerant
module.
7 .2 .2
Field setting components
Location of the 7-segment displays, buttons and DIP switches:
a
b
BS1 BS2
DS1 DS2
BS3
X27A
BS1
MODE: For changing the set mode
BS2
SET: For field setting
BS3
RETURN: For field setting
DS1, DS2
DIP switches
a
7-segment displays
b
Push buttons
7 .2 .3
To access the field setting components
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
Switch box cover
b
Main PCB with 3 7-segment displays and 3 push buttons
c
Access 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.
NOTE
Make sure that all outside panels, except for the service
cover on the control box, are closed while working.
Close the lid of the control box firmly before turning on the
power.
7 .2 .4
To access mode 1 or 2
Initialization: default situation
NOTE
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 outside unit and all indoor units.
When the communication between indoor units and outside unit(s) is
established and normal, the 7-segment display indication state will
be as below (default situation when shipped from factory).
Stage
Display
When turning on the power supply: flashing as
indicated. First checks on power supply are
executed (1~2 min).
When no trouble occurs: lighted as indicated
(8~10 min).
Ready for operation: blank display indication as
indicated.
7-segment display indications:
Off
Blinking
On
When above situation cannot be confirmed after 12 min, the
malfunction code can be checked on the indoor unit user interface
and the outside unit 7-segment display. Solve the malfunction code
accordingly. The communication wiring should be checked at first.
01_EN_4P602454-1C.indd 36
2020/07/29 16:16:51
