Mitsubishi City Multi P500YEM-A, Service Handbook

Page: 129 / 145

–128–
No SW
1234567890
Item
Relay output dis-
play 1, Light ON
display 0000000000 0
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 Stop 14 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
active 3-minute
restart 7 1110000000 Outdoor unit oper-
ation display
Remarks Display
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