Mitsubishi Electric SEZ-KD50VAQ / SUZ-KA50VA [12/24] Electrical work
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Mitsubishi Electric SEZ-KD50VAQ / SUZ-KA50VA [12/24] Electrical work

Mitsubishi Electric SEZ-KD50VAQ / SUZ-KA50VA [12/24] Electrical work
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2) Connecting procedures
1 Connect the remote controller cord to the terminal block.
[Fig. 8-6] (P.5)
A To the terminal block on the indoor unit
B TB6 (No polarity)
2 Set the dip switch No.1 shown below when using two remote controller’s for the
same group.
3) Function selection of remote controller
If two remote controllers are connected, set one to “Main” and the other to “Sub”. For
setting procedures, refer to “Function selection of remote controller” in the operation
manual for the indoor unit.
8.4. Outdoor unit
[Fig. 8-7] (P.5)
• Connect cable from the indoor unit correctly on the terminal-block.
• Use the same terminal block and polarity as is used with the indoor unit.
• For aftercare maintenance, give extra length to connecting cable.
• Both end of connecting cable (extension wire) are peeled off. When too long,
or connected by cutting off the middle, peel off power supply cable to the size
given in the figure.
• Be careful not to contact connecting cable with piping.
[Fig. 8-8] (P.5)
A Loosen terminal screw
B Terminal block
C Lead wire
Caution:
• Use care not to make mis-wiring. (Fig. 8-8)
• Firmly tighten the terminal screws to prevent them from loosening.
• After tightening, pull the wires lightly to confirm that they do not move.
Warning:
• Be sure to attach the service panel of the outdoor unit securely. If it is not
attached correctly, it could result in a fire or an electric shock due to dust,
water, etc.
• Tighten terminal screws securely.
• Wiring should be done so that the power lines are not subject to tension.
Otherwise, heat may be generated or fire may occur.
8.5. Function settings (Function selection via the
remote controller)
8.5.1 Function setting on the unit (Selecting the unit functions)
1) Changing the external static pressure setting [Fig. 8-9] (P.6)
• Be sure to change the external static pressure setting depending on the duct and
the grill used.
1 Go to the function setting mode.
Switch OFF the remote controller.
Press the A and B buttons simultaneously and hold them for at least 2
seconds. FUNCTION will start to flash.
2 Use the C button to set the refrigerant address (3) to 00.
3 Press D and [--] will start to flash in the unit number (4) display.
4 Use the C button to set the unit number (4) to 01-04 or AL.
5 Press the E MODE button to designate the refrigerant address/unit number.
[--] will flash in the mode number (1) display momentarily.
6 Press the F buttons to set the mode number (1) to 08.
7 Press the G button and the current set setting number (2) will flash.
Use the F button to switch the setting number in response to the external static
pressure to be used.
8 Press the MODE button E and mode and the setting number (1) and (2) will
change to being on constantly and the contents of the setting can be confirmed.
9 Press the FILTER A and TEST RUN B buttons simultaneously for at least two
seconds. The function selection screen will disappear momentarily and the air
conditioner OFF display will appear.
0 To set the static pressure at 5Pa, repeat steps 3 to 9. (Set the mode number to
10 for step 6.)
2) Other functions
1 Select unit number 00 for the settings. (Settings for all indoor units)
Refer to Function table 1.
2 Select unit number 01 to 04 or AL for the settings. (Settings for each indoor unit)
To set the indoor unit in the individual system, select unit number 01.
To set each indoor unit of two, three or four indoor units, which are connected
when these units are simultaneously in operation, select unit number 01 to 04.
To set all indoor units of two, three or four indoor units which are connected when
these units are simultaneously in operation, select AL.
Refer to Function table 2.
8. Electrical work
External static
pressure
05 Pa
15 Pa (before shipment)
35 Pa
50 Pa
Setting no. of mode
no. 08
1
1
2
3
Setting no. of mode
no. 10
2
1
1
1
Function table 2
Select unit numbers 01 to 04 or all units (AL [wired remote controller]/07 [wireless remote controller])
*1 When the power supply returns, the air conditioner will start 3 minutes later.
Note: When the function of an indoor unit were changed by function selection after the end of installation, always indicate the contents by entering a or other mark in the
appropriate check filed of the tables.
Mode
Filter sign
External static pressure
Settings
100 Hr
2500 Hr
No filter sign indicator
15 Pa
35 Pa
50 Pa
The same as setting of mode no.08
5 Pa (set mode no. 08 to 1)
Mode no. Setting no. Initial setting Check
1
07 2
3
1
08 2
3
1
10
2
Function table 1
Select unit number 00
Settings
Not available
Available
Indoor unit operating average
Set by indoor unit’s remote controller
Remote controller’s internal sensor
Not Supported
Supported (indoor unit is not equipped with outdoor-air intake)
Supported (indoor unit is equipped with outdoor-air intake)
Mode no. Setting no. Initial setting Check
1 (*1)
01
2
1
02 2
3
1
03 2
3
Mode
Power failure automatic recovery*1
(AUTO RESTART FUNCTION)
Indoor temperature detecting
LOSSNAY connectivity
KB79H132H03_GB.p65 08.8.8, 11:16 AM12

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