100
Setting the MCU and Pipe Addresses (for HR Only)
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. Especially if error E464 and E364 have been occurred, power element might be damaged by fire and therefore, do not use
the 'Discharge mode of DC link voltage'.
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
O
u
tdoor T
emper
atur
e
(
°
C)
Indoor Temperature (
°
C)
Main cooling operation
Main heating operation
Summary of Contents for DVM S AM080FXVAGH
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