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No SW
1234567890
Item
Relay output dis-
play 1, Light ON
display
00000000000
Inspection display
1, OC error
0000~9999
(Address and error code inverted)
0000~9999
(Address and error code inverted)
0000~9999
1
✩
1000000000 Relay output dis-
play 2
SV4a SV6a CH2, 3 52F
Retry op-
eration
Emergency
operation
Com-
pressor
running
Error
delayed
Error
Vaccum op-
eration pro-
tection delay
SV3 SV4 SV5 SV6 SV7, 8
Contact
demand
Night
mode
2 0100000000
(IC also included)
Inspection display
2
3
✩
1100000000 Relay output dis-
play 3
4 0010000000
5 1010000000 Communication
demand capacity
6 0110000000 External signal
Cooling-
only ON
Cooling-
only
OFF
Heating-
only ON
Heating-
only
OFF
Mixed
ON
Mixed
OFF
Fan Stop14 0111000000 BC operation
mode
Permis-
sion stop
Standby
Cooling-
only
Cooling
main
Heating-
only
Heating
main
Demand
15 1111000000 Outdoor unit oper-
ation mode
Initial
start
Cooling-only,
cooling main re-
frigerant recovery
Heating-only,
heating main re-
frigerant recovery
Defrosting
Balance
oil
Low oil
recovery
16 0000100000 Outdoor unit con-
trol mode
High
pressure
error 1, 2
–
Low
pressure
error
NO1 Dis-
charge tem-
perature error
NO2 Dis-
charge tem-
perature error
NO1 Over-
current
protection
NO2 Over-
current
protection
Radiator
thermo
operation
17 1000100000 Outdoor unit error
delay
Over-
current
cut off
INV error
Refriger-
ant over-
charge
Composi-
tion sen-
sor error
Oil tem-
perature
error
18 0100100000
TH11
error
TH12
error
TH2
error
TH3
error
TH4
error
TH5
error
TH6
error
TH7
error
19 1100100000
TH9
error
TH10
error
High pres-
sure sen-
sor error
THHS
error
20 0010100000
Machine
No.1
Machine
No.2
Machine
No.3
Machine
No.4
Machine
No.5
Machine
No.6
Machine
No.7
Machine
No.8
Machine
No.9
Machine
No.10
Machine
No.11
Machine
No.12
Machine
No.13
Machine
No.14
Machine
No.15
Machine
No.16
8 0001000000
9 1001000000
Indoor unit inspec-
tion
Machine
No.1
Machine
No.2
Machine
No.3
Machine
No.4
Machine
No.5
Machine
No.6
Machine
No.7
Machine
No.8
Machine
No.9
Machine
No.10
Machine
No.11
Machine
No.12
Machine
No.13
Machine
No.14
Machine
No.15
Machine
No.16
10
12
0101000000
11 1101000000
Indoor unit opera-
tion mode
Machine
No.1
Machine
No.2
Machine
No.3
Machine
No.4
Machine
No.5
Machine
No.6
Machine
No.7
Machine
No.8
Machine
No.9
Machine
No.10
Machine
No.11
Machine
No.12
Machine
No.13
Machine
No.14
Machine
No.15
Machine
No.16
0011000000
13 1011000000
Indoor unit thermo
BC op-
eration
instruct
Restric-
tion ener-
gized
3-minute
restart
7 1110000000 Outdoor unit oper-
ation display
RemarksDisplay
LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8
COMP
operat-
ing
COMP1
start
52C2 21S4a
21S4b
SV1 SV
22/32
Regu-
larly
light ON
Remarks: E: Contents into EPROM M: IC monitor through communication E*: Store in service memory