LG ARNH763K3B2.ANWALUS Manual de usuario Pagina 19

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Installation
ENGLISH
Hydro Kit Installation Manual 19
Precaution when connecting Heat Recovery systems
Pipe searching process
1. When pipe searching process is performed,
- Use ‘Mode 1’ if water temperature is higher than 30℃(86℉)
- Use ‘Mode 2’ if water temperature is lower than 30℃(86℉)
2. When pipe searching process is not performed,
- Check whether ‘CH14’ error occurs in the Hydro Kit.
*Refer to the installation manual of HR unit
No.1, 2 Valve
/
No.3, 4 Valve
Control
No.3, 4 Valve
Control
DIP S/W setting
No.2, 3 Valve
Control
No.1, 2 Valve
Control
No Hydro kits
connected
Example
Indoor Unit
Indoor Unit
Hydro kit
Indoor Unit
Indoor Unit
Hydro kit
Indoor Unit
Indoor Unit
Hydro kit
Hydro kit
Hydro kit
Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
Gas pipe
Ø15.88
Liquid pipe
Ø9.52
Welding type
Hydro kit
Gas pipe
Ø22.2
Liquid pipe
Ø9.52
(When two
Hydro Kit are
installed)
- One connection of refrigerant pipe for HR unit is
insufficient for the flow of refrigerant. Join two
pipes with a branch pipe when connecting the
Hydro Kit.
- The pipe number of the connected gas pipe and
liquid pipe must be same.
- Flow water in the Hydro Kit when pipe-
searching process is performed.
- Pipe-searching process error may occur if the
pipe temperature does not increase.
- It is recommended that Hydro Kit is connect-
ed to No.1 valve and No.2 valve.
Recaution when connecting to synchronous type outdoor unit
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