Mitsubishi KXZ Series Technical Manual page 202

(B) Option controls
Outdoor unit control settings can be changed with the DIP switch and 7-segment display PXX setting on the PCB. In changing
settings in PXX on the 7-segment display panel, you can use SW8 (increasing a number shown on the 7-segment display panel:
one's place), SW9 (increasing a number shown on the 7-segment display panel: tens place) and SW7 (data write/enter) by
pressing them for a prolonged time.
Contents of control switching
Forced cooling/heating mode*2
Cooling test operation
Heating test operation
Pump down
Demand mode *2
( )
J13 closed: level input
J13 opend: pulse input
Communication protcol setting
CnS1 input setting
Defrost setting
Operation priority change
Outdoor fan snow guard control
Outdoor fan snow guard control
operation time setting
Capacity save mode *3
Silent mode setting *2
External output (CnZ1) function assignment
External input (CnS1) function assignment
Spare
*1 The switching activated when both SW and PXX are changed.
*2 The switching activated when a signal is input to CnS1
*3 Capacity restriction is effected without a signal input to CnS1 in the capacity save mode.
• Functions of outdoor PCB connectors CnS1 and CnZ1
①
CnS1 connector: Following functions can be selected by selecting with [P07] on 7-segment display.
(Note) More than one function cannot operate at same time.
"0": External operation input
"1": Demand input
"2": Forced cooling/heating input
"3": Silent mode input 1
"4": Forced oil return input
"5": Outdoor fan snow protection control input
"6": Test run external input 1 (Equal to SW5-1)
"7": Test run external input 2 (Equal to SW5-2)
"8": Silent mode input 2
"9"-"11": Spare
"12": VTCC input
"13"-"14": Spare
"15": Forced defrost input
"16": Spare
"17": Outdoor unit EEV open input
"18"-"20": Spare
DIP switch setting
Switch SW3-7 to ON*1
Switch SW5-1 to ON + SW 5-2 to ON
Switch SW5-1 to ON + SW 5-2 to OFF
Close the outdoor unit service valves and perform
the following operations in the stated order:
(1) Switch SW5-2 to ON
(2) Switch SW5-3 to ON
(3) Switch SW5-1 to ON
SW4-7:OFF, SW4-8:OFF*1 80% (factory setting)
SW4-7:ON, SW4-8:OFF*1 60%
SW4-7:OFF, SW4-8:ON*1 40%
SW4-7:ON, SW4-8:ON*1 00%
SW5-5 ON: previous SL communication,
OFF: new SL communication
J13: closed (factory setting) for level input,
J13: opend for pulse imput
J15: closed (factory setting) for normal defrost,
J15: opend for enhanced defrost
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CnS1 short-circuit
Operation allowed
Cooling test run
186
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Method of control setting
P00 setting on the 7-segment diaplay panel
Select "2" in P07. *1
Select "1" in P07. *1
P01 0-3: See (10) Outdoor operation mode
P02 0: invalid (factory setting)
1: valid
P03 30sec (factory setting) 10, 30-600sec
P04 OFF: invalid (factory setting)
000, 040, 060, 080 [%]
P05 0 (factory setting) - 3: the larger the number,
P06
P07
P08-29
CnS1 open
Operation prohibited
Invalid Valid
Heating Cooling
Valid Invalid
Valid Invalid
Valid Invalid
Test run start Normal operation
Heating test run
Valid Invalid
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Valid Invalid
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Valid Invalid
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Valid Invalid
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'20 • KX-T-373
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the stronger the effect.
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