Mitsubishi Electric CITY MULTI, Техническое и сервисное руководство, Страница: 111 / 160

111
OCH673D
The black square (
■
) indicates a switch position.
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8-5. INTERNAL SWITCH FUNCTION TABLE
Switch
Step
Function
Operation in Each Switch Setting
Remarks
Purpose
Additional Information
ON
OFF
When to Set
SWU1 ones digit SWU2 tens digit
Rotary switch
Before turning the power ON
<Initial settings>
—
—
SW1 Digital Display Switch
1–8
Can be set either during operation or not.
<Initial settings>
T
o display outdoor unit's information to the LED on outdoor multi controller circuit board. Refer to "8-10. OUTDOOR UNIT
INFORMA
TION DISPLA
Y".
—
SW2 Function Switch
1
Selects operating system startup
With centralized controller
Without centralized controller
Before turning the power ON
<Initial settings>
Turn ON when the centralized controller is connected to the outdoor unit.
• SW2-1 must be turned ON if a central controller is connected to the syst
em.
An example of this would
be
a TC-24,
EB50A, AG150, AE50
or AE200.
If SW2-1 is not turned on, while using a central controller
, in rare circumstances problems may be
encountered such as indoor units not responding to group commands.
Therefore, turning SW2-1 ON
is recommended if a central controller is used. • Group setting of 2 or more
A-IC units which
is connected to branch box via centrilized controller is not allowed.
2
Connection Information Clear Switch
Clear
Do not clear
When relocating units or connecting additional units.
—
3
Abnormal data clear switch input
Clear abnormal data
Normal
OFF to ON any time after the power is turned on.
To delete an error history
.
—
4
Pump down
ON
OFF
During compressor running
To facilitate outdoor unit the pumping down operation. Frequency = Fixed to 65 Hz
Indoor-linear expansion valve = Fully open
Outdoor fan step = Fixed to 10
Please refer to a section referring to the pumping down on outdoor units Installation Manuals. It might not be possible to collect all the refrigerant if the amount is excessive.
5
—
—
—
—
—
—
6
—
—
—
—
—
—
SW3 T
rial
operation
1
ON/OFF from outdoor unit*
1
ON
OFF
Any time after the power is turned ON.
<Initial settings>
—
—
2
Mode setting
Heating
Cooling
—
—
SW4/ SW8 Model Switch
1–6
MODEL
SELECTION
Before the power is turned ON.
<Initial settings> Set for each capacity
.
—
—
SW5 Function switch
1
Demand control setting for
Australia
Aus
trali
a s
etting
Normal*
2
Can be set when of
f or during
operation
<Initial settings>
Turn ON to activate the demand control for Australia.
(Do not turn this ON if the unit is in outside
Australia)
2
Change the indoor unit's LEV opening at startup
Enable
Normal
To set the LEV opening at startup higher than usua
l.
(+150 pulses) To improve the operation with the LEV almost clogged.
The refrigerant flow noise at startup become louder
.
3
—
—
—
—
—
—
4
—
—
—
—
—
—
5
Change the indoor unit's LEV opening at defrost
Enable
Normal
Can be set when OFF or during operation
To set the LEV opening higher than usual during defrosting operation. (Only Qj
[
10 is valid, + 300 pulses)
To avoid the discharge temperature increase and provide efficient defrosting operation.
The refrigerant flow noise during the defrosting operation become louder
.
*
1
T
est run on PWFY
series cannot be run by the outdoor unit. Use a switch on the indoor unit or a remote controller to perform test run.
*
2
Refer to "8-6. OUTDOOR UNIT
INPUT/OUTPUT
CONNECT
OR".
SWU2
(tens digit)
0
1 2
3 4
5
67
89
SWU1
(ones digit
)
0
1 2
3 4
5
67
89
1
ON OFF
2
3
4
5
6
7
8
SWU2
(tens digit)
0
1 2
3 4
5
67
89
SWU1
(ones digit
)
0
1 2
3 4
5
67
89
1
ON OFF
2
3
4
5
6
7
8
1
ON OFF
2
3
4
5
6
1
ON OFF
2
1
ON OFF
2
3
4
5
6
7
8
SW4
MODEL
PUMY
-P1
12VKM4
PUMY
-P1
12VKM4R1
SW8
PUMY
-P125VKM4
PUMY
-P125VKM4R1
PUMY
-P140VKM4
PUMY
-P140VKM4R1
1
ON OFF
2
3
4
5
6
1
ON OFF
2
3
4
5
6
1
ON OFF
2
3
4
5
6
1
ON OFF
2
1
ON OFF
2
1
ON OFF
2
SW4
MODEL
PUMY
-P1
12YKM(E)4
PUMY
-P1
12YKM(E)4R1
SW8
PUMY
-P125YKM(E)4
PUMY
-P125YKM(E)4R1
PUMY
-P140YKM(E)4
PUMY
-P140YKM(E)4R1
1
ON OFF
2
3
4
5
6
1
ON OFF
2
3
4
5
6
ON OFF
1
ON OFF
2
1
ON OFF
2
1
ON OFF
2
1
2
3
4
5
6
PUMY
-P1
12YKM(E)4R2
PUMY
-P125YKM(E)4R2
PUMY
-P140YKM(E)4R2
1
ON OFF
2
3
4
5
6
1
ON OFF
2
3
4
5
6
ON OFF
1
ON OFF
2
1
ON OFF
2
1
ON OFF
2
1
2
3
4
5
6