7 Technical data
Installation manual
17
3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
3P600450-1 – 2019.10
Pump down operation will extract all refrigerant from the system into
the outdoor unit.
1
Remove the valve cap from the liquid stop valve and the gas
stop valve.
2
Carry out forced cooling. See
17].
3
After 5 to 10 minutes (after only 1 or 2 minutes in case of very
low ambient temperatures (<−10°C)), close the liquid stop valve
with a hexagonal wrench.
4
Check on the manifold if the vacuum is reached.
5
After 2-3 minutes, close the gas stop valve and stop forced
cooling.
a
c
b
d
d
e
a
Gas stop valve
b
Closing direction
c
Hexagonal wrench
d
Valve cap
e
Liquid stop valve
6.2
To start and stop forced cooling
1
Turn OFF the power.
2
Remove the service cover and the switch box cover.
3
Remove the service PCB switch cover.
4
Set DIP switch SW5 and SW6 to OFF.
5
Set DIP switch SW2 to COOL.
4
3
2
1
2
1
4
3
2
1
2
1
HEAT
COOL
A
1
2
3
4
5
2
3
SW5
SW6
SW2
OFF
ON
1×
1
6
Reattach the service PCB switch cover, switch box cover and
service cover.
7
Turn ON the outdoor unit.
8
Press the forced cooling operation switch SW1 to begin forced
cooling.
9
Press the forced cooling operation switch SW1 to stop forced
cooling.
A
1
2
3
4
5
7
SW1
6
1×
4
5
=
NOTICE
Take care that while running forced cooling operation, the
water temperature remains higher than 5°C (see
temperature read out of the indoor unit). You can achieve
this, for example, by activating all fans of the fan coil units.
7
Technical data
▪ A
subset
of the latest technical data is available on the regional
Daikin website (publicly accessible).
▪ The
full set
of latest technical data is available on the Daikin
Business Portal (authentication required).
7.1
Wiring diagram
7.1.1
Unified wiring diagram legend
For applied parts and numbering, refer to the wiring diagram on the
unit. Part numbering is by Arabic numbers in ascending order for
each part and is represented in the overview below by "*" in the part
code.
Symbol
Meaning
Symbol
Meaning
Circuit breaker
Protective earth
Connection
Protective earth
(screw)
,
Connector
A
Rectifier
Earth
Relay connector
Field wiring
Short-circuit
connector
Fuse
Terminal
INDOOR
Indoor unit
Terminal strip
OUTDOOR
Outdoor unit
Wire clamp
Symbol
Colour
Symbol
Colour
BLK
Black
ORG
Orange
BLU
Blue
PNK
Pink
BRN
Brown
PRP, PPL
Purple
GRN
Green
RED
Red
GRY
Grey
WHT
White
YLW
Yellow
Symbol
Meaning
A*P
Printed circuit board
BS*
Pushbutton ON/OFF, operation
switch
