Mitsubishi Electric City Multi CMB-P1016NU-G, Service Handbook

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[
X
LED Monitor Display on the Heat Source Unit Board ]
No
SW
Item
Display
Remarks
1234567890 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8
16 0000100000
Indoor unit
check Unit No.
1
Unit No.
2
Unit No.
3
Unit No.
4
Unit No.
5
Unit No.
6
Unit No.
7
Unit No.
8
The lamp that
corresponds to
the unit that
came to an ab-
normal stop
lights.
The lamp goes
off when the er-
ror is reset.
Each unit that
comes to an ab-
normal unit will
be given a se-
quential number
in ascending or-
der starting with
1.
17 1000100000
Unit No.
9
Unit No.
10
Unit No.
11
Unit No.
12
Unit No.
13
Unit No.
14
Unit No.
15
Unit No.
16
18 0100100000
Unit No.
17
Unit No.
18
Unit No.
19
Unit No.
20
Unit No.
21
Unit No.
22
Unit No.
23
Unit No.
24
19 1100100000
20 0010100000
21 1010100000
22 0110100000
23 1110100000
Indoor unit
Operation
mode Unit No.
1
Unit No.
2
Unit No.
3
Unit No.
4
Unit No.
5
Unit No.
6
Unit No.
7
Unit No.
8
Lit during cool-
ing
Lit during heat-
ing
Unlit while the
unit is stopped
or in the fan
mode
24 0001100000
Unit No.
9
Unit No.
10
Unit No.
11
Unit No.
12
Unit No.
13
Unit No.
14
Unit No.
15
Unit No.
16
25 1001100000
Unit No.
17
Unit No.
18
Unit No.
19
Unit No.
20
Unit No.
21
Unit No.
22
Unit No.
23
Unit No.
24
26 0101100000
27 1101100000
28 0011100000
29 1011100000
30 0111100000
Indoor unit
thermostat Unit No.
1
Unit No.
2
Unit No.
3
Unit No.
4
Unit No.
5
Unit No.
6
Unit No.
7
Unit No.
8
Lit when thermo-
stat is on
Unlit when ther-
mostat is off
31 1111100000
Unit No.
9
Unit No.
10
Unit No.
11
Unit No.
12
Unit No.
13
Unit No.
14
Unit No.
15
Unit No.
16
32 0000010000
Unit No.
17
Unit No.
18
Unit No.
19
Unit No.
20
Unit No.
21
Unit No.
22
Unit No.
23
Unit No.
24
33 1000010000
34 0100010000
35 1100010000
36 0010010000
37 1010010000
BC all indoor
units Opera-
tion mode
*Cool-
ing only
ON
*Cool-
ing only
OFF
*Heat-
ing only
ON
*Heat-
ing only
OFF
*Mixed
mode
opera-
tion ON
*Mixed
mode
opera-
tion
OFF
*Venti-
lation
*Stop
Items marked
with * are only
applicable to the
PQRY series.
38 0110010000
39 1110010000
Heat source
unit Opera-
tion mode Permis-
sible
stop
Standby
Cooling
only
*Cool-
ing
main
Heating
only
*Heat-
ing
main
40 0001010000
41 1001010000
42 0101010000
Heat source
unit control
mode
Stop
Thermo
OFF
Abnor-
mal
stop
Sched-
uled
control
Initial
start up
Defrost
Oil bal-
ance
Low fre-
quency
oil re-
covery
43 1101010000
Warm
up
mode
Refrig-
erant
recov-
ery
Current data