Checking The Setting Of Outdoor Units - LG Multi V PRHR042A Installation Manual

36

Checking the setting of outdoor units

Checking according to DIP switch setting
- You can check the setting values of the Master outdoor unit from the
7 segment LED.
The DIP switch setting should be changed when the power is OFF.
Checking the initial display
The number is sequentially appeared at the 7 segment in 5 seconds
after applying the power. This number represents the setting condition.
Service PCB
7-Segment
SW01C
(●:confirm)
SW02C
(◀:backward)
SW03C
(▶:forward)
• Communication speed setting
The factory setting of DIP switch 3 differs depending on production date.
- Set the DIP switch 3 to "On" if all the indoor units are "ARN*******4".
- Set the DIP switch 3 to "Off" if not all the indoor units are "ARN*******4".
CAUTION
!
1. Set the DIP switch No. 3 "On" and if not all the indoor units are
"ARN*******4" connected, normal communication is impossible,
so DIP switch No. 3 must be set to "Off".
2. When changing DIP switch, all power should be off and auto
addressing must be executed.
DIP switch No. 3
Comm. Speed 1200 bps
7-Segment
SW01C
(●:confirm)
SW02C
(◀:backward)
SW03C
(▶:forward)
• Initial display order
Order No
①
4~12
1
②
2
3
③
22
1
④
5
• Example) ARUM048GSS5
① ②
05 3
SW01D
(reset)
SW04C
(x:cancel)
DIP-SWITCH
Off On
9600 bps
SW01D
(reset)
SW04C
(x:cancel)
DIP-SWITCH
Note
Model capacity
Cooling only
Heat pump
Heat Recovery
220V
Standard
Cold Area
③ ④
22 5
CAUTION
!
Be sure to turn off outdoor unit power before installation.
h Heat Pump installation
① Turn on the DIP s/w No 4.
DIP switch
ODU Setting
setting
Setting Heat pump
system or Heat Recovery
system (Installer Setting)
② The factory setting display is appeared "HR".
③ Change "HR" into "HP" display pushing ▶ button and then push
confirm button.
④ Turn off the DIP s/w No 4. and Push reset button to restart the
system. (If you turn on the DIP s/w No 4, you can make sure "HR"
or "HP" display later.)
Setting For Heat Recovery Unit (Refer Only Heat
Recovery Installation)
[Heat Recovery (HR) Unit Board]
2 Series
#1 valve housing
SW02M
(DIP switch for setup of
The function of HR unit)
SW03M
3 Series
Branch #1~4
Bypass
(from left)
SC EEV
7-SEG
Branch #3,4
High/Low
(from top)
Branch #1,2
High/Low
(from top)
Liquid
- SW01D/SW01C/
Bypass
SW02B/SW01B/SW02E
Valve
- SW01E : Branch #1~4 (from
SW No.1)
Main PCB (Master)
* Number from left in sequence for less-than-8 branch model.
** PRHR043A / PRHR033A / PRHR023A : Master Only
#4 valve housing
7-SEG
SW05M
SW01M
SW01M/SW03M/SW04M
(Switch for manual valve
addressing)
SW04M
Branch No.
Main PCB (2EA, same P/No)
Branch #5~8
Bypass
7-SEG (from left)
Branch #7,8
High/Low
(from top)
Branch #5,6
High/Low
(from top)
- SW02E : Use only SW
No.5
- SW01E : Branch #5~8
(from SW No.1)
- SW01C
Main PCB (Slave)