To Start And Stop Forced Cooling; Technical Data; Wiring Diagram; Unified Wiring Diagram Legend - Daikin 3MXM40N2V1B Manual De Instalación

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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
cooling" [ 4  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.
b
c
a
d
e
d
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.
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.
3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
3P600450-1 – 2019.10
"6.2  To start and stop forced
ON
OFF
2
SW5
1
A
SW6
4
3
1
2
2
1
1
2
4
2
3
3
2
1
4
COOL
HEAT
5
SW2
3
4
NOTICE
Take care that while running forced cooling operation, the
water
temperature
remains
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
Circuit breaker
Connection
A
,
Connector
Earth
Field wiring
Fuse
Indoor unit
INDOOR
Outdoor unit
OUTDOOR
Symbol
Colour
Symbol
BLK
Black
ORG
BLU
Blue
PNK
BRN
Brown
PRP, PPL
GRN
Green
RED
GRY
Grey
WHT
YLW
Symbol
A*P
BS*
7 Technical data
A
1
5
=
2
3
6
4
5
7
SW1
higher
than
5°C
(see
Meaning
Protective earth
Protective earth
(screw)
Rectifier
Relay connector
Short-circuit
connector
Terminal
Terminal strip
Wire clamp
Colour
Orange
Pink
Purple
Red
White
Yellow
Meaning
Printed circuit board
Pushbutton ON/OFF, operation
switch
Installation manual
17

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