(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 Method of control setting
DIP switch setting P00 setting on the 7-segment diaplay panel
Forced cooling/heating mode*2 Switch SW3-7 to ON*1 Select “2” in P07. *1
Cooling test operation Switch SW5-1 to ON + SW 5-2 to ON –
Heating test operation Switch SW5-1 to ON + SW 5-2 to OFF –
Pump down
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
–
Demand mode *2
(
J13 closed: level input
J13 opend: pulse input
)
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%
Select “1” in P07. *1
Communication protcol setting
SW5-5 ON: previous SL communication,
OFF: new SL communication
–
CnS1 input setting
J13: closed (factory setting) for level input,
J13: opend for pulse imput
–
Defrost setting
J15: closed (factory setting) for normal defrost,
J15: opend for enhanced defrost
–
Operation priority change –
P01
0-3: See (10) Outdoor operation mode
Outdoor fan snow guard control –
P02
0: invalid (factory setting)
1: valid
Outdoor fan snow guard control
operation time setting
–
P03
30sec (factory setting) 10, 30-600sec
Capacity save mode *3 –
P04
OFF: invalid (factory setting)
000, 040, 060, 080 [%]
Silent mode setting *2 –
P05
0 (factory setting) - 3: the larger the number,
the stronger the effect.
External output (CnZ1) function assignment – P06
External input (CnS1) function assignment – P07
Spare – P08-29
*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.
CnS1 short-circuit CnS1 open
“0”: External operation input Operation allowed Operation prohibited
“1”: Demand input Invalid Valid
“2”: Forced cooling/heating input Heating Cooling
“3”: Silent mode input 1 Valid Invalid
Valid Invalid
“4”: Forced oil return input
“5”: Outdoor fan snow protection control input Valid Invalid
“6”: Test run external input 1 (Equal to SW5-1) Test run start Normal operation
“7”: Test run external input 2 (Equal to SW5-2) Cooling test run Heating test run
“8”: Silent mode input 2 Valid Invalid
“9”-“11”: Spare - -
- -
- -
Valid Invalid
“12”: VTCC input
“13”-“14”: Spare
Valid Invalid
“15”: Forced defrost input
“16”: Spare
“17”: Outdoor unit EEV open unit Valid Invalid
“18”-“20”: Spare - -
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