10
GB
D
F
E
I
NL
P
GR
RU
TR
CZ
SV
HG
PO
10.3. Connecting electrical connections
Please identify the model name of the operation manual attached on the terminal
bed box cover with that shown on the rating name plate.
1. Remove the screw (2pcs) holding the cover to dismount the cover.
[Fig. 10.3.1] (P.4)
A
Screw holding cover (2pcs)
B
Cover
2. Open knockout holes
(Recommend to use a screwdriver or the like for this work.)
[Fig. 10.3.2] (P.4)
A
Terminal bed box
B
Knockout hole
C
Remove
D
Knockout hole
3. Fix power source wiring to terminal bed box by using buffer bushing for tensile
force. (PG connection or the like.) Connect transmission wiring to transmission
terminal bed through the knockout hole of terminal bed box using ordinary
bushing.
[Fig. 10.3.3] (P.4)
E
To prevent external tensile force from applying to the wiring connection section of
power source terminal bed use buffer bushing like PG connection or the like.
F
Power source wiring
G
Tensile force
H
Use ordinary bushing
I
Transmission wiring
4. Connect the power source, transmission and remote controller wiring. The dis-
mounting of the terminal bed box is not needed.
[Fig. 10.3.4] (P.4)
J
Power source terminal bed
K
Terminal bed for indoor transmission
L
To 1-phase power source
M
Transmission line DC 30 V
N
Terminal bed for outdoor transmission line (TB3)
O
Transmission line to the remote controller, terminal bed for indoor unit and BC
controller
[Shield wire connection]
[Fig. 10.3.5] (P.4)
A
Terminal bed
B
Round terminal
C
Shield wire
D
Two shield wires may be connected together at the shield relay terminal bed
E
One shield wire is connected with another shield wire. (Terminal connection)
F
Insulation tape (for the earthing of shield and the prevention of contact to trans-
mission terminal)
5. After wiring is complete, make sure again that there is no slack on the connec-
tions, and attach the cover onto the terminal bed box in the reverse order of
removal.
Notes:
•
Do not pinch the cables or wires when attaching the terminal bed box
cover. Doing so may cause a risk of disconnection.
•
When accommodating the terminal bed box, make sure that the connec-
tors on the box side are not removed. If removed, it cannot operate nor-
mally.
10.4. Selecting the power source
It is 240V, 230V setting at factory shipment.
So, it is necessary to change the setting in other power supply districts.
Please remove the connector of motor from the control box, and insert the attach-
ment connector according to each power supply between those.
The connector colors are as follows.
Power source
240V
230V
220V
Color
White
Blue
[Fig. 10.4.1] (P.4)
A
Terminal bed box connector (White)
B
Motor connector (White)
C
Attachment connector (Blue) (Accessory)
10.5. Setting addresses
(Be sure to operate with the main power turned OFF.)
[Fig. 10.5.1] (P.4)
<Address board>
•
There are two types of rotary switch setting available: setting addresses 1 to 9
and over 10, and setting branch numbers.
1
How to set addresses
Example: If Address is “3”, remain SW12 (for over 10) at “0”, and match
SW11(for 1 to 9) with “3”.
2
How to set branch numbers SW14 (Series R2 only)
Match the indoor unit’s refrigerant pipe with the BC controller’s end connec-
tion number. Remain other than R2 at “0”.
•
The rotary switches are all set to “0” when shipped from the factory. These
switches can be used to set unit addresses and branch numbers at will.
•
The determination of indoor unit addresses varies with the system at site. Set
them referring to technical data.
Notes:
Please set the switch SW5 according to the power supply voltage.
•
Set SW5 to 240V side when the power supply is 230 and 240 volts.
•
When the power supply is 220 volts, set SW5 to 220V side.
10.6. Sensing room temperature with the
built-in sensor in a remote controller
If you want to sense room temperature with the built-in sensor in a remote control-
ler, set SW1-1 on the control board to “ON”.
