Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 671

10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
Type
No. Function
of Switch
switch
1 Compulsory defrosting
2
Abnormal history clear
3
4
SW1
Dip
Refrigerant address setting
switch
5
6
1
Test run
SW4
2
Test run mode setting
Compulsory defrosting should be done as follows.
1 Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2 Compulsory defrosting will start by the above operation 1 if these conditions written below are satisfied.
• Heat mode setting
• 10 minutes have passed since compressor started operating or previous compulsory defrosting finished.
• Pipe temperature is less than or equal to 8: .
3 Compulsory defrosting will finish if certain conditions are satisfied.
wCompulsory defrosting can be done if above conditions are satisfied when DIP SW1-1 is changed from OFF to ON.
After DIP SW1-1 is changed from OFF to ON, there is no problem if DIP SW1-1 is left ON or changed to OFF again. This
depends on the service conditions.
Type of
Switch No.
Switch
1
2
automatic recovery w1
SW5
3
4
1
Setting of demand
control
w2
Dip
2
switch SW7
w3
3 Max Hz setting (cooling)
4 Max Hz setting (heating)
5 Defrost Hz setting
6
1 Use of existing pipe
2
SW8
3
1
SW9
2
Push
SWP
switch
1 Power failure automatic recoveryʼ can be set by either remote controller or this DIP SW. If one of them is set to ON,
ʻAuto recoveryʼ activates. Please set "Auto recovery" basically by remote controller because all units have not DIP SW.
Please refer to the indoor unit installation manual.
2 SW7-1,2 are used for demand control. SW7-1,2 are effective only at the demand control.
(Refer to next page : Special function (b))
3 Please do not use SW7-3~6 usually. Trouble might be caused by the usage condition.
Action by the switch operation
ON
Start
Clear
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
0
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
4
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
8
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
12
Operating
Heating
Action by the switch operation
Function
No function
Power failure
Auto recovery
No function
No function
SW7-1
OFF
ON
OFF
Max Hz(cooling)
Max Hz(heating)
Defrost Hz
No function
Used
No function
No function
No function
No function
Pump down Start
OFF
Normal
Normal
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
1 2 3
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
5 6 7
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
9 10 11
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
13 14 15
OFF
Cooling
ON OFF
— —
No auto recovery
— —
— —
Power consumption
SW7-2
(Demand switch ON)
OFF 0% (Operation stop)
OFF 50%
ON 75%
o
0.8 Normal
o
0.8 Normal
o
0.8 Normal
— —
Not used
— —
— —
— —
— —
Normal
Funciones
PUHZ-P
Effective timing
When compressor is working
in heating operation. w
off or operating
When power supply ON
Under suspension
Effective timing
—
When power supply ON
—
—
Always
Always
Always
Always
—
Always
—
—
—
—
Under suspension
671