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W
IRING EXAMPLE
Fit the power supply wiring of each unit with a switch and fuse as
shown in
figure
16.
1
Power supply
2
Main switch
3
Power supply wiring
4
Transmission wiring
5
Switch
6
Fuse
7
BS unit REYQ only
8
Indoor unit
9
Remote controller
Complete system example (3 systems)
When using 1 remote controller for 1 indoor unit (Normal operation)
(See figure 15)
For group control or use with 2 remote controllers
When including BS unit
(See figure 13)
1
Outdoor unit
2
Indoor unit
3
Remote controller (optional accessories)
4
Most downstream indoor unit
5
For use with 2 remote controllers
6
BS unit
NOTE
It is not necessary to designate an indoor unit address
when using group control. The address is automatically
set when the power is activated.
PRECAUTIONS
■
A single switch can be used to supply power to units on the
same system. However, branch switches and branch circuit
breakers must be selected carefully.
■
For a group control remote controller, choose the remote
controller that suits the indoor unit which has the most functions.
■
Do not ground the equipment on gas pipes, water pipes,
lightning rods or crossground with telephones. Improper
grounding could result in electric shock.
FXMQ50-125P7VEB9
VRV System air conditioners
3P468515-4 – 12.2016
F
IELD SETTING
Field setting must be made on the remote controller in function of the
installation condition.
■
■
Summary of field settings
Mode
No.
(Note 1)
(See figure 17)
10
(20)
12
(22)
15
(25)
Note 1 : Setting is carried out in the group mode, however, if the mode number inside parentheses is selected,
Note 2 : Factory settings of the Second code No. are marked in grey backgrounds.
Note 3 : Only use in combination with optional remote sensor or when setting 10-2-03 is used.
Note 4 : If group control is selected and remote control sensor is to be used, then set 10-6-02 & 10-2-03.
Note 5 : If setting 10-6-02 + 10-2-01 or 10-2-02 or 10-2-03 are set at the same time, then setting 10-2-01,
Note 6 : If setting 10-6-01 + 10-2-01 or 10-2-02 or 10-2-03 are set at the same time, then setting for group
Note 7 : More settings for Differential automatic change over temperatures are:
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.
First
code
No.
Description of setting
Filter contamination
Ultra-long-
- Heavy/Light
±10,000 hrs.
life filter
= Setting to define
time between 2 filter
cleaning display
indications. (When
Long-life
0
±2,500 hrs.
contamination is
filter
high, setting can be
changed to half the
time inbetween 2
Standard
±200 hrs.
filter cleaning
filter
display indications.)
Use both the
unit sensor (or
remote sensor if
installed) AND
2
Thermostat sensor selection
the remote
controller
sensor.
(See note 5+6)
Setting for display of time
3
between 2 filter cleaning display
Display
indications
Use unit sensor
only (or remote
Thermostat sensor in group
6
sensor if
control
installed).
(See note 6)
Thermostat-on
Output signal X1-X2 of the
0
+ compressor
optional KRP1B PCB kit
run
ON/OFF input from outside
(T1/T2 input) = Setting when
1
Forced OFF
forced ON/OFF is to be
operated from outside.
Fan setting during thermostat
3
LL
OFF at heating operation
Differential automatic
4
0°C
changeover
5
Auto-restart after power failure Disabled
9
Fixed cool/heat master
Disabled
Drain pump operation +
3
Equipped
humidifier interlock
indoor units can also be set individually.
10-2-02 or 10-2-03 have priority.
connection, 10-6-01 has priority and for individual connection, 10-2-01, 10-2-02 or 10-2-03 have
priority.
Second code No.
05
4°C
06
5°C
07
6°C
08
7°C
Second code No. (Note 2)
01
02
03
04
±5,000 hrs.
±1,250 hrs.
—
—
±100 hrs.
Use unit sensor
Use remote
only (or remote
controller
sensor if
—
sensor only.
installed).
(See note 5+6)
(See note 5+6)
Do not display
—
—
Use both the
unit senor (or
remote sensor if
installed) AND
—
—
the remote
controller
sensor. (See
note 4+5+6)
Mal-
—
Operation
function
ON/OFF
—
—
operation
OFF
Set speed
—
(See note 3)
3°C
1°C
2°C
(See
note 7)
Enabled
—
—
Enabled
—
—
Not equipped
—
—
Installation and operation manual
8
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