Lennox VRF VEC027N432U, Руководство пользователя

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DC Inverter Multi VRF System
23
Description of each stage of debugging progress
—— Debugging code
Code meaning and operation method
Progress
LED
Code Display status
00~16/CL
Display
circularly
“00~16” displays the quantity of indoor unit identified by the
system. “CL” means the amount of indoor unit is very little
(amount of indoor unit<2), at this moment, all buttons are
invalid, the system cannot enter into the next judgment.
05_ Detect ODU’s
internal
communication
and capacity ratio
05/C2
Display
circularly
Communication between master ODU and driver has error.
Check the communication connection of ODU’s main board
and drive board. When the error is eliminated, start next
step. If power is off during troubleshooting, then restart
debugging from progress 01 after power is on.
05/oC
Display
circularly
Communication of master ODU and driver is normal. Unit
will display as in the left for 2s and detect the capacity ratio
of IDU and ODU. If the ratio is within range, then next step
will start 2s later. If the ratio is out of range, unit will display
as below:
05/CH
Display
circularly
Rated capacity ratio of IDU is too high. Change the
combination way of IDU and ODU to make the ratio within
range. And restart debugging from progress 01.
05/CL
Display
circularly
Rated capacity ratio of IDU is too low. Change the
combination way of IDU and ODU to make the ratio within
range. And restart debugging from progress 01.
06_ Detect
outdoor
components
06/error code
Display
circularly
Outdoor component’s error. Besides “06”, the other blinking
will display the related error code. After errors are
eliminated, system will start next step automatically. If
power is off during troubleshooting, then restart debugging
from progress 01 after power is on.
06/oC
Display
circularly
System detects no error on outdoor component. 10s later,
next step starts.
07_ Detect indoor
components
07/XX/error
code
Display
circularly
System detects error on indoor components. XX means the
project code of IDU with error, e.g. no.1 IDU has d5 and d6
errors, meanwhile no.3 IDU displays error d6 and d7, then
the nixie tube will display “07”, “01”, “d5”, “d6”and “03”
circularly. After errors are eliminated, system will start next
step automatically. If power is off during troubleshooting,
then restart debugging from progress 01 after power is on.
07/XXXX/error
code
Display
circularly
If errors occur in IDU which the project code i s ≥ 3 -digit
number, then it will display the 2 big digits of project code
first, then the 2 small digits, finally the error code, e.g: L1
error occurs in no.101 IDU, then the nixie tube will display
“01”,“01” and “L1” circularly. Display method is the same for
several IDUs with multiple errors.
07/oC
Display
circularly
No error on components of IDU. 5s later, next step starts.
08_ Confirm
preheated
compressor
08/U0
Display
circularly
Preheat time for compressor is less than 8 hours. Display
will be as in the left until the preheat time reaches 8 hours.
Press main board’s SW3 button to confirm manually that
the preheat time has reached 8 hours. Then start next step
( Note: Compressor may get damaged if it is started without
8 hours of preheat time).
08/oC
Display
circularly
Compressor has been preheated for 8 hours. 2s later, next
step starts.