Coil Exchanging Method - LG PRHR Series Installation Manual

Coil Exchanging Method

Coil Exchanging Method
1. Remove the 2 securing screws.
Remove the cover by pulling on the bottom of the
cover and lifting up.
3. Remove the 4 securing screws.
Lift up and pull on the cover.
NOTES
Refer to the label concerned the solenoid coil's position
attached on the cover inside.
NOTICE
Be sure that system power off before exchanging the coil.
Check the position of the solenoid coil with the label attached on the cover inside when abnormal noise is
heard loudly during operation.
12 HR Unit
Room 4 Room 3
Bypass Bypass
(CN11) (CN10)
Room 4 Room 3
Low Low
Room 4 Room 3
(CN07) (CN06)
High High
(CN07) (CN06)
Position label of the solenoid coil(PRHR040)
2. Take out the connectors on the pcb.
Remove the 4 securing screws.
Lay down the control box.
4. Remove the securing nut with a spanner.
Exchange the coil.
Room 2 Room 1
Bypass Bypass
(CN09) (CN08)
Room 2 Room 1
Low Low
Room 2 Room 1
(CN05) (CN04)
High High
(CN05) (CN04)
Bypass
(CN12)