12-13
CONTROL SYSTEM
SM XLFDCI 1-A.1 GB
The indoor alarm outputs are defined according to the following table:
No
Problem
AO
5
4
3
2
1
1
ICT is disconnected
Yes
0
0
0
0
1
2
ICT is shorted
Yes
0
0
0
1
0
3
RAT is disconnected
Yes
0
0
0
1
1
4
RAT is shorted
Yes
0
0
1
0
0
5
Reserved (for MSMP used as RGT fault)
No
0
0
1
0
1
6
ICTE shorted/disconnected (when enabled)
Yes
0
0
1
1
0
7
Undefined IDU family/model
Yes
0
0
1
1
1
8
No Communication
Yes
0
1
0
0
0
9
No Encoder
No
0
1
0
0
1
10
Reserved
No
0
1
0
1
0
11
Outdoor Unit Fault
No
0
1
0
1
1
…
Reserved
No
17
Defrost protection
No
1
0
0
0
1
18
Deicing Protection
No
1
0
0
1
0
19
Outdoor Unit Protection
No
1
0
0
1
1
20
Indoor Coil HP Protection
No
1
0
1
0
0
21
Overflow Protection
Yes
1
0
1
0
1
22
Reserved
No
24
EEPROM Not Updated
No
1
1
0
0
0
25
Bad EEPROM
No
1
1
0
0
1
26
Bad Communication
No
1
1
0
1
0
27
Using EEPROM data
No
1
1
0
1
1
28
Model A
No
1
1
1
0
0
29
Model B
No
1
1
1
0
1
30
Model C
No
1
1
1
1
0
31
Model D
No
1
1
1
1
1
Notes:
1. Only one code is shown. Order of priority is lower to the higher number. Diagnostics is
continuously ON as long power is on.
2. The following case describes the LEDs used to present diagnostics and the indication:
XLF DCI
Cool LED (Diag-
nostics) Replaced
BY
Heat LED (Diag-
nostics) Replaced
BY
Indoor Diagnostics
indicated by
Outdoor Diagnostics
indicated by
Use Cool LED (Do
not replace)
Use Heat LED (Do
not replace)
‘Unit Mode’ cool is on
(100%) during indoor
diagnostics.
‘Unit Mode’ heat blinks
during Outdoor diag-
nostics.
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