QUERY DESCRIPTION
(Chart 2) Function description
Reserved
Reserved
Reserved
Reserved
Reserved
Discharge temp detecting point, No.2 fixed compressor
Discharge temp detecting point, No.1 fixed compressor
Discharge temp detecting point, digital compressor
Phase detecting point
C-phase power supply
Power input of transformer
Load output
Load output
Load output
Load output
Load output
Power output of transformer
Electronic expansion valve driving port
Electronic expansion valve driving port
Indoor to outdoor unit communication port
Current detecting inductor, No.2 fixed compressor
Current detecting inductor, No.1 fixed compressor
Current detecting inductor, digital compressor
Outdoor temp detecting point
Outdoor condenser temp detecting point
Signal input port, low-pressure detecting switch
Signal input port, hi-pressure detecting switch
Outdoor to outdoor unit communication port
Please complete address setting of indoor and outdoor
units before debugging.
HV inside electric control box, do not touch!
Address dial of outdoor unit
The quantity of outdoor unit is searched.
The address dial is shown below:
Address 0: outdoor main unit;
Address 1: outdoor auxiliary unit;
Address 2: outdoor auxiliary unit;
Address 3: outdoor auxiliary unit;
Address higher than 3: ineffective address, error occurs.
Distance between ground bolt is shown below: (Note: Outdoor units in
the same system should be located in the same level.
Outdoor unit
Through hole(15X20 long hole)
SW4 query instructions:
Display content
Note
Normal display
Normal display
ADDR of outdoor unit
Cap. of outdoor unit
Qty. of outdoor unit
Total cap. of outdoor units
Cap. REQT. of indoor units
Cap. REQT. of main unit (after correction)
Running mode
Actual running cap. of outdoor unit
Fan speed
Discharge temp, digital compressor
Discharge temp, No.1 fixed compressor
Discharge temp, No.2 fixed compressor
Current, digital compressor
Current, No.1 fixed compressor
Current, No.2 fixed compressor
Opening degree, electronic expansion valve A
Opening degree, electronic expansion valve B
Qty. of indoor unit
The last error or protection code
T2 average
T3 pipe temp
T4 ambient temp
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value 8
Actual value 8
Effective to main unit
Effective to main unit
Effective to main unit
No protection or error, display 00
End of query
Normal display:
Display qty. of indoor units which communicate with outdoor unit on
standby mode. In case of cap. requirement, display opening degree
of unloading valve PWM of digital compressor.
Running mode:
OFF: 0--OFF, 1-- FAN, 2-- COOL, 3-- HEAT, 4-- Constraint cool
Fan speed: 0--OFF, 1-- LOW, 2--HIGH
PWV opening: pulse count=displayed value 8
SW1: outdoor unit cap. setting switch
SW3: constraint cool button
The outdoor unit of 8Hp, 10Hp and 12Hp exclude the part in broken
line circle and relevant wiring (including the wiring with CT2 current
inductor and HEAT2) on nameplate.
SW2: outdoor unit ADDR setting switch
SW4: query button
SW5: mode locking switch
COOL HEAT
or
AUTO (Default)
Mode setting
See following chart:
Mode setting switch
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