Airwell SX 12 DCI, Service Manual

Page: 63 / 86

CONTROL SYSTEM
11-22
SM YAZ318 1-A.1 GB
11.6.8 Matrix Table Test Result (tbl)
IDU channels on the DMSMP
Channel1 (j=1) Channel2 (j=2) Channel3 (j=3) Channel4
(j=4)
EEV1 (i=1)
X
1
=T/F/N/C Y
1
=T/F/N/C Z
1
=T/F/N/C W
1
=T/F/N/C
EEV2 (i=2)
X
2
=T/F/N/C Y
2
=T/F/N/C Z
2
=T/F/N/C W
2
=T/F/N/C
EEV3 (i=3)
X
3
=T/F/N/C Y
3
=T/F/N/C Z
3
=T/F/N/C W
3
=T/F/N/C
EEV
channels
on the
DMSMP
EEV4 (i=4)
X
4
=T/F/N/C Y
4
=T/F/N/C Z
4
=T/F/N/C W
4
=T/F/N/C
Stored Matrix Type
[Rows, Column]
How to present?
Repeat: r1(keep 2 sec) Æ X1Y1 (keep 2 sec)
2 x 2
Repeat: r2 (keep 2 sec)
Æ
X2Y2
Æ
(keep 2 sec)
Repeat: r1 (keep 2 sec) Æ X1Y1Z1 ( keep 2 sec)
Repeat: r2 (keep 2 sec) Æ X2Y2Z2 (keep 2 sec) 3 x 3
Repeat: r3 (keep 2 sec) Æ X3Y3Z3 (keep 2 sec)
Repeat: r1 (keep 2 sec) Æ X1Y1Z1 (keep 2 sec) Æ W1 (keep 2 sec)
Repeat: r2 (keep 2 sec) Æ X2Y2Z2 (keep 2 sec) Æ W2 (keep 2 sec)
Repeat: r3 (keep 2 sec) Æ X3Y3Z3 (keep 2 sec) Æ W3 (keep 2 sec)
4 x 4
Repeat: r4 (keep 2 sec) Æ X4Y4Z4 (keep 2 sec) Æ W4 (keep 2 sec)
Note: Scrolling between r1, r2, r3, and r4 is done through the ‘Up’ and ‘Down’ buttons
Definitions
Term Definition
‘F’ Clogged EEV
EEV Coil problem
EEV driver problem
Clogged indoor unit or part of it.
Problem in ICT sensor
Extremely high load at the indoor side
‘T’ Valve always open
EEV coil problem
Driver Problem
C Non detected channel
N Null- never done before
11.7 Technician Test Mode
This test is aimed for the technicians to check the system under a preset compressor and
outdoor fan values while the expansion valves will function according to the normal running
mode.
11.7.1 Entering technician mode
o
This mode is entered through the outdoor unit using the HMI (refer to user interface
section).
o
It can be selected either for cool or heat.
o
Technician test is not possible to enter during deicer.
11.7.2 Technician mode procedure