108
Setting the MCU and Pipe Addresses (for HR Only)
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°C
24°C ≤ Outdoor temperature < 30°C
30°C ≤ Outdoor temperature
Indoor temperature
< 24°C
Main heating operation Main heating operation Main cooling operation
Indoor temperature
≥ 24°C
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 (Conrmation )
2. When the Auto pipe pairing operation nishes, 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.
• 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 nish the Auto pipe pairing operation because of the previous reasons, set the pipe addresses
manually by referring to Setting the Pipe Addresses Manually.
CAUTION
DVM S HE_IM_DB68-05461A-08_EN.indd 108 2017-03-24 오후 1:38:47
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