6 Installation
Installer reference guide
21
2(A)MXM40+50M(3)(4)V1B(9)_2(A)MXF40+50A2V1B
R32 Split series
4P600463-2 – 2019.10
6.8.2
About ECONO mode prohibition setting
This setting disables the input control signal from the user interface.
Use this setting when you wish to block reception of input controls
(cooling/heating) from indoor unit user interfaces.
To turn on ECONO mode prohibition setting
Prerequisite:
The main power supply MUST be turned off.
1
Remove the top plate of the outdoor unit (2 screws on sides)
2
Remove the electric box cover by sliding it. Be careful not to
bend the electric box hook.
3
Cut the jumper (J23).
a
c
d
e
b
J26
J24
J23
J6
J22
J8
a
Top plate
b
Electric box cover
c
Electric box
d
PCB
e
PCB jumpers
4
Reinstall the electric box cover and the top plate in reverse
order and turn on the main power supply.
6.8.3
About night quiet mode
The night quiet mode function makes the outdoor unit run more
quietly at nighttime. This will reduce the cooling capacity of the unit.
Explain Night quiet mode to the customer and confirm if customer
wants to use this mode.
To turn on the night quiet mode
Prerequisite:
The main power supply MUST be turned off.
1
Remove the top plate and the electric box cover of the outdoor
unit (see
"To turn on ECONO mode prohibition setting"
2
Cut the jumper J6.
J26
J24
J23
J6
J22
J8
3
Reinstall the top plate and the electric box cover.
CAUTION
When reinstalling the electric box cover, be careful not to
pinch the fan motor lead wire.
6.8.4
About heat mode lock
Heat mode lock limits the unit to heat operation.
To turn on heat mode lock
1
Remove the top plate (2 screws) and the front plate (8 screws).
2
To set heat mode lock remove the S99 connector.
3
To reset the heat pump mode (cooling/heating), plug the
connector back.
b
c
a
a
Front plate
b
Top plate
c
S99 connector
Mode
S99 connector
Heat pump (cooling, heating)
Connected
Heating only
Disconnected
4
Reinstall the top plate and the front plate.
INFORMATION
Forced operation is also available in heating mode.
6.8.5
About standby electricity saving function
The standby electricity saving function:
▪ turns OFF the power supply to the outdoor unit and,
▪ turns ON the standby electricity saving mode on the indoor unit.
The standby electricity saving function works with following units:
FTXM
,
FTXP
,
FTXJ
,
FVXM
,
ATXF
If another indoor unit is used, the connector for standby electric
saving must be plugged in.
The standby electricity saving function is turned off before shipping.
To turn on standby electricity saving function
Prerequisite:
The main power supply MUST be turned off.
1
Remove the service cover.
2
Disconnect the selective standby electricity saving connector.
