LG Hydro Kit Installation Manual page 27

Connecting Heat Recovery systems
PRHR083 / PRHR063 / PRHR043 / PRHR033 / PRHR023
Valve Group
Not control
No. 1,2 Valve Control
No. 2,3 Valve Control
No. 3,4 Valve Control
No. 5,6 Valve Control
No. 6,7 Valve Control
No. 7,8 Valve Control
No. 1,2/3,4 Valve Control
Note:
0
SW01D (Rotary SW) : Selection of the Valve Group Control
Precaution on pipe searching process
1. Please choose the 'Mode' according to the water temperature
- Use 'Mode 1' if water temperature is higher than 30 ℃(86 ℉)
- Use 'Mode 2' if water temperature is lower than 30 ℃(86 ℉)
2. Be sure that water pump is operating during the pipe searching process
- If the water circulation is not detected by water flow switch, 'CH14' error will occur.
For more detailed information, refer to the installation manual of Heat Recovery Unit.
- 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
(Up to 61 kBtu/h capacity model: 8, 10 HP).
- 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 (8, 10 HP model) is
connected to No.1 valve and No.2 valve.
SW01D
Setting
0 No. 5,6/7,8 Valve Control
1 No. 1,2/5,6 Valve Control
2 No. 1,2/7,8 Valve Control
3 No. 3,4/5,6 Valve Control
4 No. 3,4/7,8 Valve Control
5 No. 1,2/3,4/5,6 Valve Control
6 No. 1,2/3,4/6,7 Valve Control
7 No. 1,2/3,4/7,8 Valve Control
Valve Group
Hydro Kit Installation Manual 27
Installation
SW01D
Setting
8
9
A
B
C
D
E
F