Airwell PNX 012, Service Manual

Page: 80 / 103

11-23
CONTROL SYSTEM
SM YAZDCI 1-A.1 GB
Stored Matrix Type
[Rows, Column]
How to present?
2 x 2
Repeat: r1(keep 2 sec)  X1Y1 (keep 2 sec)
Repeat: r2 (keep 2 sec)  X2Y2  (keep 2 sec)
3 x 3
Repeat: r1 (keep 2 sec)  X1Y1Z1 ( keep 2 sec)
Repeat: r2 (keep 2 sec)  X2Y2Z2 (keep 2 sec)
Repeat: r3 (keep 2 sec)  X3Y3Z3 (keep 2 sec)
4 x 4
Repeat: r1 (keep 2 sec)  X1Y1Z1 (keep 2 sec)  W1 (keep 2 sec)
Repeat: r2 (keep 2 sec)  X2Y2Z2 (keep 2 sec)  W2 (keep 2 sec)
Repeat: r3 (keep 2 sec)  X3Y3Z3 (keep 2 sec)  W3 (keep 2 sec)
Repeat: r4 (keep 2 sec)  X4Y4Z4 (keep 2 sec)  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
This mode is entered through the outdoor unit using the HMI (refer to user interface
o
section).
It can be selected either for cool or heat.
o
Technician test is not possible to enter during deicer.
o