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7 Electrical installation

Installation manual

19

2MXM-A9, 3MXM-A9, 4MXM-A9, 5MXM-A9
R32 Split series
3P600450-9T – 2022.09

DANGER: RISK OF ELECTROCUTION

All  electrical  parts  (including  thermistors)  are  powered  by
the power supply. Do NOT touch them with bare hands.

DANGER: RISK OF ELECTROCUTION

Disconnect  the  power  supply  for  more  than  10  minutes,
and  measure  the  voltage  at  the  terminals  of  main  circuit
capacitors  or  electrical  components  before  servicing.  The
voltage MUST be less than 50 V DC before you can touch
electrical  components.  For  the  location  of  the  terminals,
see the wiring diagram.

AC

DC

DC

S20

  S

21

  S

22

  S

23

S92

S93

S40

S80

S7

0

U

    

W

   

  V

D

C

-

FU2

S9

0

S2

4

AL2  AL1

e

f
g

h

a

b

c

d

DC(-)

FU2

a

AL1, AL2 - solenoid valve lead wire connector*

b

S20~24 - electronic expansion valve coil lead wire
connector (room A, B, C, D, E)*

c

S40 – thermal overload relay lead wire and high pressure
switch connector*

d

Multimeter (DC voltage range)

e

S90~93 – thermistor lead wire connector

f

S70 - fan motor lead wire connector

g

S80 - 4-way valve lead wire connector

h

Compressor lead wire connector

*May differ depending on the model.

7.1

Specifications of standard wiring
components

NOTICE

We recommend using solid (single-core) wires. If stranded
wires are used, twist the conductor to consolidate the end
or  twist  the  conductor  to  consolidate  the  end  in
combination with the usage of a round crimp-style terminal
on  the  end  of  the  conductor.  Details  are  described  in
"Guidelines  when  connecting  the  electrical  wiring"  in  the
installer reference guide.

Component

Power supply
cable

Voltage

220~240 V

Current

See table below (

A

)

Phase

1~

Frequency

50 Hz

Wire size

MUST comply with national

wiring regulation.

3-core cable

Wire size based on the current,

but not less than 2.5 mm

2

.

Component

Interconnection
cable
(indoor↔outdoo
r)

Voltage

220~240 V

Wire size

Only use harmonised wire

providing double insulation and

suitable for applicable voltage.

4-core cable

Minimum 1.5 mm

2

Recommended circuit breaker

See table below (

B

)

Earth leakage circuit breaker /
residual current circuit breaker

MUST comply with national

wiring regulation

Model

A

B

3MXM40

16.0 A

16 A

2MXM68

19.8 A

20 A

3MXM52

16.3 A

3MXM68

19.8 A

4MXM68

19.8 A

4MXM80

20.4 A

25 A

5MXM90

25.9 A

32 A

Electrical  equipment  must  comply  with  EN/IEC  61000-3-12,  the
European/International  Technical  Standard  setting  the  limits  for
harmonic currents produced by equipment connected to public low-
voltage systems with input current >16 A and ≤75 A per phase.

7.2

To connect the electrical wiring to
the outdoor unit

1

Remove the switch box cover (1 screw).

1

2

2

Connect the wires between the indoor and outdoor units so that
the  terminal  numbers  match.  Make  sure  to  match  the  symbols
for piping and wiring.

3

Make sure to connect correct wiring to correct room.

e

-B

e

-E

e

-C

e

-D

a

-A

e

-A

a

-C

a

-D

a

-E

a

-B

b

c

d

a

Terminal for room (A, B, C, D, E)*

b

Circuit breaker

c

Residual current device

d

Power supply wire

e

Interconnection wire for room (A, B, C, D, E)*

*May differ depending on the model.

Summary of Contents for 2MXM68A2V1B9

Page 1: ...Installation manual R32 Split series English Installation manual R32 Split series 2MXM68A2V1B9 3MXM40A2V1B9 3MXM52A2V1B9 3MXM68A2V1B9 4MXM68A2V1B9 4MXM80A2V1B9 5MXM90A2V1B9...

Page 2: ...i noudattaen s nn ksi za dodr en ustanoven prema odredbama k veti a z zgodnie z postanowieniami urm nd prevederile 19 20 21 22 23 24 25 v skladu z dolo bami vastavalt n uetele vadovaujantis io dokume...

Page 3: ...a TS TSmin Alhaisin matalapainepuolen l mp tila L C TSmax Suurinta sallittua painetta PS vastaava kyll stysl mp tila M C Kylm aine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi...

Page 4: ...a f r i henhold til bestemmelsene i noudattaen s nn ksi za dodr en ustanoven prema odredbama k veti a z zgodnie z postanowieniami urm nd prevederile 19 20 21 22 23 24 25 v skladu z dolo bami vastavalt...

Page 5: ...a TS TSmin Alhaisin matalapainepuolen l mp tila L C TSmax Suurinta sallittua painetta PS vastaava kyll stysl mp tila M C Kylm aine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi...

Page 6: ...ctrical Equipment Safety Regulations 2016 S I 2016 1091 Electromagnetic Compatibility Regulations 2016 following the provisions of BS EN 60335 2 40 A B C DAIKIN TCF 032E23 11 2022 D DAIKIN TCF PED 014...

Page 7: ...urated temperature corresponding with the maximum allowable pressure PS M C Refrigerant N Setting of pressure safety device P bar Manufacturing number and manufacturing year refer to model nameplate Q...

Page 8: ...ons 2008 S I 2016 1101 Electrical Equipment Safety Regulations 2016 S I 2016 1091 Electromagnetic Compatibility Regulations 2016 following the provisions of BS EN 60335 2 40 A B C DAIKIN TCF 032E23 11...

Page 9: ...urated temperature corresponding with the maximum allowable pressure PS M C Refrigerant N Setting of pressure safety device P bar Manufacturing number and manufacturing year refer to model nameplate Q...

Page 10: ...5 About cool mode lock 21 9 5 1 To turn ON cool mode lock 21 10 Commissioning 21 10 1 Checklist before commissioning 22 10 2 Checklist during commissioning 22 10 3 Trial operation and testing 22 10 3...

Page 11: ...oor units shall be of non permanent type CAUTION Do NOT connect the embedded branch piping and the outdoor unit when only carrying out piping work without connecting the indoor unit in order to add an...

Page 12: ...NOT ONLY the outdoor unit but the connected indoor unit will operate as well Working on an indoor unit while performing a test operation is dangerous CAUTION Do NOT insert fingers rods or other objec...

Page 13: ...50 b a 100 b a b a 350 350 50 b a 1200 100 350 a b a Air outlet b Air inlet Allow 300 mm of work space below the ceiling surface and 250 mm for piping and electrical servicing NOTICE The height of the...

Page 14: ...unit 4 M8 M10 4 2 3 To provide drainage NOTICE In cold areas do NOT use a drain socket hose and caps large small with the outdoor unit Take adequate measures so that the evacuated condensate CANNOT fr...

Page 15: ...ation materials should be at least 20 mm to prevent condensation on the surface of the insulation Use separate thermal insulation pipes for the gas and liquid refrigerant piping 5 1 3 Refrigerant pipi...

Page 16: ...ut for 12 7 mm e Inter unit piping Coat the threaded connection port of the outdoor unit where the flare nut comes in with refrigeration oil Flare nut for mm Tightening torque N m 9 5 33 39 12 7 50 60...

Page 17: ...applicable legislation Contact your installer for more information WARNING MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable WARNING The refrigerant inside the unit is mil...

Page 18: ...lculate the quantity in CO2 equivalent tonnes GWP value of the refrigerant total refrigerant charge in kg 1000 Use the GWP value mentioned on the refrigerant charge label 2 Fix the label on the inside...

Page 19: ...the conductor Details are described in Guidelines when connecting the electrical wiring in the installer reference guide Component Power supply cable Voltage 220 240 V Current See table below A Phase...

Page 20: ...tion works with following units 3MXM40 3MXM52 FTXM FTXP FTXJ FVXM CTXA CTXM CVXM If another indoor unit is used the connector for standby electric saving MUST be plugged in The standby electricity sav...

Page 21: ...unit to heat operation 9 4 1 To turn ON heat mode lock 1 Remove the switch cover on the service PCB 2 Set the heat mode lock switch SW5 1 to ON 1 1 4 3 2 1 A 1 2 3 4 5 SW5 4 3 2 1 2 OFF ON 9 5 About c...

Page 22: ...on For more information see the indoor unit installation manual and or the indoor installer reference guide Before starting the test run measure the voltage at the primary side of the safety breaker T...

Page 23: ...ng of the system 11 Maintenance and service NOTICE General maintenance inspection checklist Next to the maintenance instructions in this chapter a general maintenance inspection checklist is also avai...

Page 24: ...Number of passes through ferrite core PAM Pulse amplitude modulation PCB Printed circuit board Symbol Meaning PM Power module PS Switching power supply PTC PTC thermistor Q Insulated gate bipolar tra...

Page 25: ...r A r B s s t t u u d p o o n l l m l w x v A v B v A v B q h 2MXM68 a Heat exchanger k 4 way valve u Thermistor gas b Outdoor air temperature thermistor l Muffler v Room c Heat exchanger thermistor...

Page 26: ...12 7CuT 12 7CuT 12 7CuT 12 7CuT 15 9CuT 15 9CuT 15 9CuT 7 9CuT 9 5CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT MV MV MV A B C 6 4CuT 6 4CuT 6 4CuT 6 4CuT 6 4CuT 6 4CuT 9 5CuT 9 5CuT 9 5CuT 9 5CuT 7 9CuT S1PH d e...

Page 27: ...9 5CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT MV MV MV A B C 6 4CuT 6 4CuT 6 4CuT 9 5CuT 9 5CuT 9 5CuT 9 5CuT S1PH SV 9 5CuT 9 5CuT 6 4CuT 12 7CuT 7 9CuT MVD 6 4CuT 15 9CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7...

Page 28: ...T 12 7CuT 15 9CuT 9 5CuT 9 5CuT 9 5CuT d e f k a a b c g i j d r A r B r C r D r E s t s t s t s t s t v A v A v B v C v D v E v B v C v D v E u u u u u d p o o n l m l l w x q h y y 5MXM90 a Heat exc...

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Page 32: ...3P600450 9T 2022 09 Copyright 2022 Daikin Verantwortung f r Energie und Umwelt...

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