61
English
Instal
lation Pr
oc
edur
e
Setting the Pipe Addresses Automatically
(Auto pipe pairing operation)
You can use the Automatic pipe-address setting operation to
automatically set the address of each MCU port that is connected
to an indoor unit.
If an MCU port is set incorrectly or a pipe between an MCU and an
indoor unit is connected incorrectly, that indoor unit is indicated.
Check items before running the Auto pipe
pairing operation
1
Ensure that the service valve of the outdoor unit is open.
2
Ensure that the power cables and communication cables of the
indoor and outdoor units are correctly connected.
3
Turn on the indoor and outdoor units 6 hours before running
the Automatic pipe-address setting operation to warm up both
units sufficiently.
4
Before turning on the power, check whether the voltages and
phases are correct by using a voltmeter and a phase tester.
– Check for the R, S, T, and N terminals: ensure that 380-415V
is read between lines (R-S, S-T, T-R) and 200-240V (R-N,
S-N, T-N) between phases.
5
After the power is turn on, set the devices (indoor unit, MCU, and
others) that are connected to the outdoor unit, and set the options.
Note that, before the MCU port addresses are set, MCU port
setting errors (E216, 217, 218) may occur. You can run the
Automatic pipe-address setting operation regardless of MCU
port setting errors.
6
If the OAP(Outdoor Air Processing) Duct or Hydro unit is
connected, set the pipe addresses manually referring to
[Setting the Pipe Addresses Manually].
7
Check the operating temperature for the Automatic pipe-
address setting operation:
If this operation is run at a temperature out of the operating
temperature range, the addresses set automatically may be
incorrect. Set the pipe addresses manually by referring to
Setting the Pipe Addresses Manually.
8
Auto pipe-pairing operation does not work within 3 minutes
after power on and reset due to communication check.
[Operating temperature for the Auto pipe pairing operation]
45
24
-10
10
24
32
30
Out
door
Temper
atur
e (℃)
Indoor Temperature (℃)
Main cooling operation
Main heating operation
• Before running the Auto pipe pairing operation, be sure to
close the front cabinet. If this operation is run with the front
cabinet open, the product may be damaged and the pipe
addresses cannot be correctly recognized.
To run the Auto pipe pairing operation, take the
following steps:
1
Press the K2 button 13 times on the main PBA of the outdoor
unit to start the Auto pipe pairing operation. (Display :
.)
Outdoor
temperature <
24℃
24℃ ≤ Outdoor
temperature <
30℃
30℃ ≤ Outdoor
temperature
Indoor
temperature <
24℃
Main heating
operation
Main heating
operation
Main cooling
operation
Indoor
temperature ≥
24℃
Main heating
operation
Main cooling
operation
Main cooling
operation
Each step is indicated on the outdoor unit display. (The whole
operation takes about 25 to 55minutes normally, depending
on the number of indoor units connected. However, it can be
operated for up to 2 hours to protect the compressor.)
– Step 1 (Start
) → Steps 2 to 8 (Setup
) →
Step 9 (Check
) → Step 10 (Confirmation
)
2
When the Auto pipe pairing operation finishes, the following
data is shown on the outdoor unit display.
Result
Outdoor
unit
display
Description
Setting
completed
End
Setting
error
E191
Indoor
unit data
(displayed
alternately)
Indoor unit data
• SEG 1,2 = indoor unit address / SEG 3,4 = error status
00: An MCU port is not
disabled, or a pipe is
not connected.
01: Cooling only indoor
unit is connected
to MCU.
02: The shared setting
for two ports is
incorrect.
Example) When the MCU port connected to the
indoor unit 12 is disabled, E191 and 1200
are displayed alternately
• If two or more indoor units have setting errors, the
data about the next indoor unit is displayed each
time you press the K2 switch.
CAUTION
• If the MCU ports to use are set incorrectly, the Auto pipe
pairing operation may stop due to high-pressure or low-
pressure protection control or the data about the indoor unit
that has a MCU port setting error may be incorrect. Ensure that
the MCU ports to use are set correctly.
• Depending on the indoor and outdoor temperatures, the Auto
pipe pairing operation may stop due to protection control.
• If an error occurs while the Auto pipe pairing operation is
running, check the error code and take actions.
• If you cannot finish the Auto pipe pairing operation because
of the previous reasons, set the pipe addresses manually by
referring to Setting the Pipe Addresses Manually.
Optional: Setting the MCU and Pipe Addresses (for HR Only)
Summary of Contents for AM AXV Series
Page 68: ......
