51
Description of each stage of debugging progress
——
Cycle
code
Progress
code
Status code
Meaning
progress
LED1
LED2
LED3
Code Display
status code
Display
status Code
Display
status
db
light
15
light XXXX
/U8
light
System detects error in indoor pipeline. XXXX
is the project no. of the faulted IDU.
After
3s,
error code U8 is displayed. For example, IDU
no. 100 has U8 error, then LED3 displays like
this: 01 (2s later) 00 (2s later) U8, and repeat
again.
16_Heating
test run
db
light
16
light
AH
light
Test run
is enabled in heating mode
(mode auto-selected by system).
db
light
16
light Error
code light
Error occurs during
test run
in heating
mode.
db
light
16
light
J0
light Error of other modules occurs during
test
run
in heating mode.
db
light
16
light
U9
light Outdoor pipeline and valves are not normal.
db
light
16
light XXXX
/U8
light
System detects error in indoor pipeline. XXXX
is the project no. of the faulted IDU. 3s later,
error code U8 is displayed. For example, IDU
no. 100 has U8 error, then LED3 displays like
this: 01 (2s later) 00 (2s later) U8, and repeat
again.
17_
Test run
finished
01~0
4
light
OF
light
OF
light
Commissioning Cycle
is finished. System is
on standby condition. LED1 displays module
address. LED2 and LED3 display “OF”.
5.2.2.2
Commissioning Cycle
operation mode
LENNOX
VRF system has two
Commissioning Cycle
modes: one is direct operation on main board of outdoor
units while the other is PC operation via
Commissioning
software. In PC software
Commissioning Cycle
, indoor/
outdoor parameters can be displayed and historical data can be recorded and inquired. (Operation details can
be found in relevant instruction manuals)
(1)
Commissioning Cycle
through operation on main board of outdoor units
In this
Commissioning Cycle
mode, following
Commissioning
functions are included on the main
board:
Step 1: front panel of the outdoor units must be fully closed. Open the
service
window
of each basic module;
Step 2: disconnect power for outdoor units. According to design requirements of external
static pressure, set up corresponding static pressure mode for the units. Setting methods can
be seen in Outdoor Fan Static Pressure Setup SA6_ESP_S;
Step 3: disconnect power for outdoor units and set one module as a master unit. Setting
methods can be seen in Master Unit Setup SA8_MASTER_S;
Step 4: Connect power for all indoor units. Make sure all IDUs are power on. Then all
outdoor modules will display “Debugging not enabled”;
Step 5: Find the module with “01” module address to be the master module. Hold SW7
Lennox
VRF Unit
Содержание VEP Series
Страница 42: ...39 Fig 47 Fig 48 Fig 49 Lennox VRF Unit...