Field Setting; Test Operation; Maintenance - Daikin VRV Operation Manual

F
IELD SETTING
Field setting must be made on the remote controller in function of the
installation condition.
Setting can be made by changing the "Mode number", "First
code No." and "Second code No.".
For setting and operation, refer to the "Field settings" in the
installation manual of the remote controller.
Control by 2 Remote Controllers (Controlling 1 indoor
unit by 2 remote controllers)
When using 2 remote controllers, one must be set to "MAIN" and the
other to "SUB". Refer to the installatoin manual of the remote
controller.
Computerised control (forced off and on/off operation)
1 Wire specifications and how to perform wiring
- Connect input from outside to terminals T1 and T2 of the
terminal board (remote controller to transmission wiring).
Wire specification
Gauge
Length
External terminal
F2 T1 T2
FORCED
OFF
Input A
2 Actuation
- The following table explains "forced off" and "on/off
operations" in response to input A.
Forced off
Input "on" stops operation
Input "off" enables control
3 How to select forced off and on/off operation
- Turn the power on and then use the remote controller to
select operation.
- Set the remote controller to the field set mode. For details,
refer to the chapter "How to set in the field", in the remote
controller manual.
- When in the field set mode, select mode No. 12, then set the
first code No. to "1". Then set second code (position) No. to
"01" for forced off and to "02" for on/off operation. (forced off
at factory set.)
Centralized control
For centralized control, it is necessary to designate the group No. For
details, refer to the manual of each optional controller for centralized
control.
FXLQ20~63P7VEB
VRV System air conditioners
4PW53089-1B
Sheathed vinyl cord or cable (2 wire)
2
0.75-1.25 mm
Max. 100 m
Contact that can ensure the minimum
applicable load of 15 V DC, 10 mA
on/off operation
input off on: turns on the unit
(impossible by remote controllers)
input on off: turns off the unit by
remote controller
T
EST OPERATION
Refer to the installation manual of the outdoor unit.
The operation lamp of the remote controller will flash when an error
occurs. Check the error code on the liquid crystal display to identify
the trouble.
Error code Meaning
Error in power supply to indoor unit
A8
Transmission error between fan driver PCB and controller
C1
PCB of the indoor unit
Improper combination of fan driver PCB of the indoor unit or
C6
setting failure in control PCB type
Test operation of the indoor unit has not been finished
U3
If any of the items in following table are displayed on the remote
controller, there may be a problem with the wiring or power, so check
the wiring again.
Error code Meaning
There is a short circuit at the forced off terminals (T1, T2)
- The power on the outdoor unit is off
U4 or UH - The outdoor unit has not been wired for power supply
- Incorrect transmission of forced off wiring
- The power on the indoor unit is off
- The indoor unit has not been wired for power supply
no display
- Incorrect transmission wiring, forced off wiring or remote
controller wiring
M
AINTENANCE
Caution
Only a qualified service person is allowed to perform

maintenance.

Before obtaining access to terminal devices, all power
supply circuits must be interrupted.
Do not use water or air of 50°C or higher for cleaning
air filters and outside panels.
Do not wash the air conditioner with water.
Doing so may result in an electric shock.
Do not operate for many hours with opened windows.
This may cause condensation.
Do not stand or place objects on the air conditioner.
This could result in injury due falling or turning over.
Do not place containers with water on the air
conditioner.
If the containers are turned over, the water could
result in equipment failure or electric shock and fire.
Do not operate the unit with the control panel lid open.
If water gets inside the panel, it could result in
equipment failure or electric shock.
If the main power supply is turned off during
operation, operation will restart automatically after the
power turns back on again.
Installation and operation manual
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