OPTIONAL ACCESSORIES
13-20
Revision 0
Service Manual - KXL DCI
No
SYMPTOM PROBABLE
CAUSE
CORRECTIVE ACTION
16
Unit operates with
wrong fan speeds or
wrong frequency
Wrong jumper
settings
Perform diagnostics (See 13.3
below), and check if units is
operating by EEPROM
parameters.
13.2
Checking the refrigeration system
Checking system pressures and other thermodynamic measures should be done when system
is in Test Mode (in Test mode, system operates in fixed settings). The performance curves
given in this manual are given for unit performance in test mode when high indoor fan speed is
selected.
Entering test mode:
Set unit to Cool/16 degrees/High indoor fan speed, or Heat/30 degrees/High indoor fan speed,
and enter diagnostics.
13.3
Judgment by Indoor/Outdoor Unit Diagnostics
Enter diagnostics mode - press for five seconds Mode button in any operation mode.
Acknowledgment is by 3 short beeps and lights of COOL and HEAT LED’s. Then, every short
pressing of Mode button will scroll between Indoor and Outdoor unit diagnostic modes by the
acknowledgment of 3 short beeps and lighting of COOL and HEAT LED’s.
During the Outdoor unit diagnostics all four Indoor LED’s (STBY, Operate, Filter and Timer) are
blinking. When Indoor diagnostics is displayed, all four LED’s (STBY, Operate, Filter and Timer)
are ON.
When system enters diagnostics mode, only one fault code is shown. Order of priority is from
the lower to the higher number. Diagnostics is continuously ON as long as power is ON. The
current system operation mode will not be changed.
If no fault occurred in the system, no fault code will be displayed during normal operation
mode. The last fault code will be displayed even if the system has recovered from that fault.
The last fault will be deleted from the EEPROM after the system has exit diagnostics mode.
In diagnostics mode, system fault / status will be indicated by blinking of Heat & Cool LEDs.
The coding method will be as follows:
Heat LED will blink 5 times in 5 seconds, and then will be shut off for the next 5 seconds. Cool
LED will blink during the same 5 seconds according to the following Indoor / Outdoor unit
tables:
Note: 0 – OFF, 1-ON
Содержание GC 24 DCI
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Страница 26: ...Service Manual KXL DCI 10 3 10 REFRIGERATION DIAGRAMS 10 1 Cooling mode 10 2 Heating mode EEV EEV...