Daikin RX25KMV1B, Installation Manual

9



English

Wiring

 WARNING

1) Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating, electrical 

shock, or fire.

2) Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the 

terminal block.) Doing so may cause electric shock or fire.

3) Be sure to install an earth leakage breaker. (One that can handle higher harmonics.)

(This unit uses an inverter, which means that it must be used an earth leakage breaker capable handling harmonics in order to 
prevent malfunctioning of the earth leakage breaker itself.)

4) Use an all-pole disconnection type breaker with at least 3mm between the contact point gaps.
5) Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.

• Do not turn ON the power supply until all work is completed.

1) Strip the insulation from the wire (20mm). 
2) Connect the connecting wires between the 

indoor and outdoor units 

so that the terminal 

numbers match.

 Tighten the terminal screws 

securely. We recommend a flathead 
screwdriver be used to tighten the screws. 
The screws are packed with the terminal 
board.

Observe the notes mentioned below when wiring to the power supply 
terminal board.
Precautions to be taken for power supply wiring. 
Use a round crimp-style terminal for connection to the power supply 
terminal board. In case it cannot be used due to unavoidable reasons, 
be sure to observe the following instruction.
Place the round crimp-style terminals on the wires up to the 
covered part and secure in place.

1
2
3

1 2 3

L N

Safety 

b

reaker 

16A

Earth leakage 
circ

u

it 

b

reaker

Earth

When 

w

ire length exceeds 10m, 

u

se 2.0mm diameter 

w

ires.

H05RN

Firmly fix the 

w

ires 

w

ith 

the terminal scre

w

s.

O

u

tdoor 

u

nit

Indoor
unit

Po

w

er s

u

pply

50Hz 220-240

V

Firmly fix the 

w

ires 

w

ith 

the terminal scre

w

s.

Use 2.0mm diameter 

w

ires.

1

2

3

1

2

3

Use the specified wire type and 
connect it securely.

Firmly secure 
wire retainer so 
wire terminations 
will not receive 
external stress.

Shape wires so 
that the stop 
valve cover fit 
securely.

Power supply 
terminal block

Stranded 

W

ire

Round crimp-style
terminal

1-3

A

B

A<B

3PEN395501-3G.book  Page 9  Thursday, June 2, 2016  8:07 AM