Mitsubishi Electric CITY MULTI PUMY-P200YKM3, Руководство по обслуживанию

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OCH791 _77
8-4. The following symptoms do not represent product failure
Symptom
Even the cooling (heating) operation selection button is
pressed, the indoor unit cannot be operated.
Display: "Cooling (Heating)" blinks
Cause
The indoor unit cannot cool (heat) if other indoor units are
heating (cooling).
The auto vane runs freely.
Display: Normal display
Because of the control operation of auto vane, it may
change over to horizontal blow automatically from the
downward blow in cooling because the downward blow
operation has been continued for 1 hour. At defrosting in
heating, hot adjusting and thermostat OFF, it automatically
changes over to horizontal blow.
Fan setting changes during heating.
Display: Normal display
Ultra-low speed operation is commenced at thermostat
OFF. Light air automatically change over to set value by
time or piping temperature at thermostat ON.
Fan stops during heating operation.
Display: "Heat Defrost "
The fan stops during defrosting.
Fan does not stop while operation has been stopped.
Display: Light is off
Fan runs for 1 minute after stopping to exhaust residual
heat (only in heating).
No setting of fan while start SW has been turned on.
Display: "Heat Standby "
Ultra-low speed operation for 5 minutes after SW ON or
until piping temperature reaches 35°C [95°F]. Then low
speed operates for 2 minutes and operates at the normal
set air volume. (Hot adjust control)
Indoor unit remote controller shows "Please Wait" indicator
for about 2 minutes when turning ON power supply.
Display: "Please Wait" blinks
The system is in the process of startup. Operate remote
controller again after “Please Wait” disappears.
Drain pump does not stop while unit has been stopped.
Display: Light is off
After a stop of cooling operation, unit continues to operate
drain pump for 3 minutes and then stops.
Drain pump continues to operate while unit has been
stopped.
Display: —
Unit continues to operate drain pump if drainage is gener -
ated, even during a stop.
8-5. Internal switch function table
■ SWU1 and SWU2
SWU2
(tens digit)
0 12
3
45
67
89
SWU1
(ones digit)
0 12
3
45
67
89
Bit When to set
Rotary switch Before turning the power ON
■ SW1: Digital display switch
Initial setting
1
ON
OFF
2 3 4 5 6 7 8
The black square (■) indicates a switch position.
Bit When to set Purpose
1-8 Any time To display outdoor unit’s information to the LED on outdoor multi controller circuit board.
Refer to “Outdoor unit information display”.
■ SW2: Function switch
Initial setting
1
ON
OFF
2 3 4 5 6
The black square (■) indicates a switch position.