8 Finishing the outdoor unit installation
Installation manual
12
35A5V1B
R32 Split series
3P650253-15Q – 2022.12
8
Finishing the outdoor unit
installation
8.1
To finish the outdoor unit
installation
DANGER: RISK OF ELECTROCUTION
▪ Make sure that the system is earthed properly.
▪ Turn OFF the power supply before servicing.
▪ Install the switch box cover before turning ON the
power supply.
1
Insulate and fix the refrigerant piping and cables as follows:
g
b
a
f
e
c
d
a
Gas pipe
b
Gas pipe insulation
c
Interconnection cable
d
Field wiring (if applicable)
e
Liquid pipe
f
Liquid pipe insulation
g
Finishing tape
2
Install the service cover.
8.2
To close the outdoor unit
NOTICE
When closing the outdoor unit cover, make sure that the
tightening torque does NOT exceed 1.3 N•m.
1×
2
1
1
9
Configuration
9.1
Facility setting
Use this function for cooling at low outdoor temperature. This
function is designed for facilities such as equipment of computer
rooms. NEVER use in a residence or office where people occupy the
space.
9.1.1
To set the facility mode
When cutting jumper J6 on the PCB, the operation range will expand
to –15°C. The facility mode will stop if the outdoor temperature drops
below –20°C and resume when the temperature rises again.
To cut jumper J6
1
Remove the top plate of the outdoor unit.
2
Remove the front plate.
3
Remove the drip proof cover.
4
Cut jumper J6 on the outdoor unit PCB.
J6
J4
J9
J5
J7
J8
J12
b
c
d
a
a
Front plate
b
Top plate
c
Drip proof cover
d
Jumpers
J12
J11
J9
J8
J6
J5
INFORMATION
▪ The indoor unit may produce Intermittent noise due to
the outdoor unit fan turning ON and/or OFF.
▪ Do NOT place humidifiers or other items which might
raise humidity in rooms when you use the facility mode.
▪ Cutting jumper J6 sets the indoor unit fan to the highest
speed.
▪ Do NOT use this setting in residences or offices with
people.
9.2
Standby electricity saving function
9.2.1
About the standby electricity saving
function
This mode turns OFF the power supply of the outdoor unit and sets
the indoor unit into the standby saving mode to reduce the power
consumption of the unit.
INFORMATION
The standby electricity saving can ONLY be used for the
units described above.
WARNING
Before connecting or disconnecting the connector, make
sure the power supply is turned OFF.
INFORMATION
Selective connector for standby electricity saving is
required if other than applicable indoor unit is connected.
9.2.2
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.
