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1. The main power is turned on while the transmission
wires between the indoor unit(s) are not connected
(open circuit at section A)
Symptom:
Nothing abnormal appears on the remote control
display. If operation is then started in this condition, the
combination of the 43BB outdoor unit and the 40U
indoor unit (master unit) will cause abnormal operation
to occur.
↓
If operation continues, an abnormality will occur on the
refrigeration cycle and operation will stop.
−
−
−
−
Remote control . . . “CHECK” flashes
−
−
−
−
Indoor unit (master) . . . The LEDs on the printed
circuit board flash and operation stops
−
−
−
−
Indoor unit (slave) . . . LED1 on the printed circuit
board illuminates and the unit does not operate at all
−
−
−
−
Outdoor unit . . . The LEDs on the printed circuit
board flash and operation stops
2. The main power is turned on while the power supply
wires between the indoor unit(s) are not connected
(open circuit at section B)
Symptom:
Same as above. If operation continues, an abnormality
will occur on the refrigeration cycle and operation will
stop.
↓
−
−
−
−
Remote control . . . “CHECK” flashes
−
−
−
−
Indoor unit (master) . . . The LEDs on the printed
circuit board flash
−
−
−
−
Indoor unit (slave) . . . The LEDs on the printed
circuit board do not illuminate and the unit does not
operate at all
−
−
−
−
Outdoor unit . . . The LEDs on the printed circuit
board flash and operation stops
3. The main power is turned on while the remote control
connection cord is not connected (open circuit at section
C)
Symptom:
−
−
−
−
Remote control unit . . . Display of “No power supply”
−
−
−
−
Indoor unit (master) . . . LED1 on the printed circuit
board stays illuminated and the unit does not
operate
−
−
−
−
Indoor unit (slave) . . . LED1 on the printed circuit
board stays illuminated and the unit does not
operate
−
−
−
−
Outdoor unit . . . LED1 on the printed circuit board
stays illuminated and the unit does not operate
Remedy
1. Turn off the main power.
↓
2. Connect the disconnected wires correctly.
↓
3. Turn the main power back on.
↓
4. After 1 minute, start operation using the remote control.
(Indoor units . . . Operation will start according to the
remote control setting.)
(Outdoor unit . . . Operation will start after 3-5 minutes.)
If slave units do not operate even after the wiring has been
corrected (automatic addressing is not possible)
1. Check that DIP switches 1 to 4 and DIP switch 8 are all
set to OFF, and then stop operation.
↓
2. Press the ADDRESS RESET button (SW3) at the
outdoor unit for approximately 4 seconds
(The self-diagnosis LEDS 2 to 8 will illuminate in order,
and the system is reset once they are all illuminated.)
The above procedure cannot be used to carry out automatic
address resetting during group control.
50
Summary of Contents for CS-W50BD3P
Page 11: ...5 TECHNICAL DRAWING CS W50BD3P OUTSIDE DIMENSIONS 11 ...
Page 12: ...CU V50BBP8 12 ...
Page 13: ...6 CIRCUIT DIAGRAM CS W50BD3P 13 ...
Page 14: ...CU W50BBP8 14 ...
Page 15: ...CU V50BBP8 15 ...
Page 16: ...APPLICABLE FOR ALL MODELS 16 ...
Page 17: ...APPLICABLE FOR ALL MODELS 17 ...
Page 18: ...APPLICABLE FOR ALL MODELS 18 ...
Page 19: ...19 ...
Page 20: ...20 ...
Page 21: ...21 ...
Page 22: ...7 OPERATING INSTRUCTION 7 1 Wired Remote Control Name and function of each part 22 ...
Page 23: ...23 ...
Page 35: ...17 SOUND DATA 35 ...
Page 36: ...36 ...
Page 44: ...20 3 Test operation using the wired remote control 44 ...
Page 45: ...45 ...
Page 46: ...O O O OSelf diagnosis error code table 46 ...
Page 62: ...62 ...
Page 63: ...63 ...
Page 65: ...25 14 DIP switch settings Indoor unit printed circuit board DSW1 65 ...
Page 66: ...26 INSTALLATION INDOOR UNIT 66 ...
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Page 78: ...27 INSTALLATION OUTDOOR UNIT 78 ...
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Page 90: ...28 REPLACEMENT PARTS 28 1 INDOOR UNIT CS W50BD3P 90 ...
Page 92: ...28 2 OUTDOOR UNIT 92 ...
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