Installation and operation manual
6
FXCQ20~125M7V1B
VRV System air conditioners
4PW15108-1
Main/sub changeover
1.
Insert a wedge-head screwdriver into the recess between the
upper and lower part of the remote controller and, working from
the 2 positions, pry off the upper part.
(The remote controller PC board is attached to the upper part of
the remote controller.)
2.
Turn the main/sub changeover switch on one of the two remote
controller PC boards to "S".
(Leave the switch of the other remote controller set to "M".)
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).
See
2.
Actuation
•
The following table explains "forced off" and "on/off operations" in
response to input A.
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 (switch) 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.
I
NSTALLATION
OF
THE
DECORATION
PANEL
Refer to the installation manual attached to the decoration panel.
After installing the decoration panel, ensure that there is no space
between the unit body and decoration panel.
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. An explanation of error codes and the
corresponding trouble is provided on "Caution for servicing"
sticker on the indoor units switch box.
Precautions
In case something is wrong with the unit and it does not operate, refer
to the malfunction diagnosis label attached to the unit.
M
AINTENANCE
IMPORTANT
■
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.
1
Remote controller PC board
2
Factory setting
3
Only one remote controller needs to be changed
Wire specification
Sheathed vinyl cord or cable (2 wire)
Gauge
0.75-1.25 mm
2
Length
Max. 100 m
External terminal
Contact that can ensure the minimum applicable load
of 15 V DC, 10 mA
1
Input A
Forced off
on/off operation
Input "on" stops operation
input off
➜
on: turns on the unit
(impossible by remote controllers)
Input "off" enables control
input on
➜
off: turns off the unit
(by remote controller)
1
Second code No.
2
Mode No.
3
First code No.
4
Field set mode
1
Drain pumping device (built-in) drain water is removed from the
room during cooling
2
Air flow flap (at air outlet)
3
Air outlet
4
Remote controller
5
Air inlet
6
Air filter (inside suction grill)
5
6
4
3
2
1
