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•
Backup operation
Even when the electrical work has not been completed, the fan and the drain
pump can be operated by connecting the jumper (SWE) on the control board
to the ON-side and energizing the terminal block.
SWE
SWE
OFF
ON
OFF
ON
Reconnect the SWE on the control board to the OFF-side upon completion of
all work.
9.2. Connecting remote controller, indoor
and outdoor transmission cables
(Remote contoroller is optionally available.)
•
Connect indoor unit TB5 and outdoor unit TB3. (Non-polarized 2-wire)
The "S" on indoor unit TB5 is a shielding wire connection. For specifications
about the connecting cables, refer to the outdoor unit installation manual.
•
Install a remote controller following the manual supplied with the remote con-
troller.
•
Connect the "1" and "2" on indoor unit TB15 to a MA remote controller. (Non-
polarized 2-wire)
•
Connect the "M1" and "M2" on indoor unit TB5 to a M-NET remote controller.
(Non-polarized 2-wire)
•
Connect the remote controller's transmission cable within 10 m using a 0.75 mm
core cable. If the distance is more than 10 m, use a 1.25 mm
[Fig. 9.2.1] (P.4) MA Remote controller
[Fig. 9.2.2] (P.4) M-NET Remote controller
A Terminal block for indoor transmission cable
B Terminal block for outdoor transmission cable
C Remote controller
•
DC 9 to 13 V between 1 and 2 (MA remote controller)
•
DC 24 to 30 V between M1 and M2 (M-NET remote controller)
[Fig. 9.2.3] (P.4) MA Remote controller
[Fig. 9.2.4] (P.4) M-NET Remote controller
A Non-polarized
C Remote Controller
•
The MA remote controller and the M-NET remote controller cannot be used at
the same time or interchangeably.
Note:
Ensure that the wiring is not pinched when fitting the terminal box cover.
Pinching the wiring may cut it.
Caution:
Install wiring so that it is not tight and under tension. Wiring under tension
may break, or overheat and burn.
•
Fix power source wiring to control box by using buffer bushing for tensile force.
(PG connection or the like.) Connect transmission wiring to transmission ter-
minal block through the knockout hole of control box using ordinary bushing.
•
After wiring is complete, make sure again that there is no slack on the connec-
tions, and attach the cover onto the control box in the reverse order removal.
Caution:
Wire the power supply so that no tension is imparted. Otherwise disconnec-
tion, heating or fire result.
2
2
junction cable.
B Upper level (TB15)
D Lower level (TB5)
9.3. Connecting electrical connections
Verify that the model name on the operating instructions on the cover of the control
box is the same as the model name on the nameplate.
Step 1
Remove the screws holding the terminal box cover in place.
•
Type 80 · 140 (2 screws)
•
Type 200 · 250 (3 screws)
[Fig. 9.3.1] (P. 4)
Fig.1
Fig.2
A Screws
C Control box cover
Note:
Ensure that the wiring is not pinched when fitting the terminal box cover.
Pinching the wiring may cut it.
Caution:
Install wiring so that it is not tight and under tension. Wiring under tension
may break, or overheat and burn.
•
Fix power source wiring to control box by using buffer bushing for tensile force.
(PG connection or the like.) Connect transmission wiring to transmission ter-
minal block through the knockout hole of control box using ordinary bushing.
•
After wiring is complete, make sure again that there is no slack on the connec-
tions, and attach the cover onto the control box in the reverse order removal.
[Fig. 9.3.2] (P. 4)
A To prevent external tensile force from applying to the wiring connection section of
power source terminal block use buffer bushing like PG connection or the like.
B Power source wiring
D Use ordinary bushing
Caution:
Wire the power supply so that no tension is imparted. Otherwise disconnec-
tion, heating or fire result.
9.4. Selecting the static pressure
Type 80 · 140
The external static pressure can be changed over as required. For the selection of
the static pressure, insert an attachment between the connector of the motor lead
wire and the control box.
The relationship among the attachment, voltage and the external static pressure is
shown below.
Type
Attachment
208 V
Red
50
White
Hz
Blue
80
170
Red
60
White
85
Hz
35
Blue
Red
50
White
Hz
Blue
140
Red
170
60
White
85
Hz
35
Blue
Type 200 · 250
The external static pressure can be changed over as required.
For the selection of static pressure, replace the connector of the motor lead wire
by the connector (blue) inside the control box for insertion.
The relationship among the connector, voltage and the external static pressure is
shown below.
Type
Connector
White
50
Hz
Blue
200
White
60
Hz
Blue
White
50
Hz
Blue
250
White
60
Hz
Blue
Fig.1
Fig.2
B Terminal box cover
D Control box
C Tensile force
E Transmission wiring
(Unit: Pa)
220 V
230 V
240 V
190
210
220
–
115
130
170
40
50
190
220
115
130
40
50
190
220
240
–
115
130
170
50
60
100
190
220
115
130
50
60
(Unit: Pa)
380 V
400 V
415 V
200
210
220
140
150
160
200
210
220
140
150
160
190
200
210
110
120
130
190
200
210
110
120
130
11
80
–
–
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