System Heat Pump Outdoor Unit - MegaFrio

Electrical Wiring
◆ Wiring Diagram for Simple Central Controller
Outdoor Unit 1
Control box
Control Board
Sub
PCB
Outdoor Unit 2
Control box
C C
D D
G G
V V
A A
B B
TB6
Control Board
42 Outdoor Unit
001
101
002
003 004 005 006 007 008
Vcc GND C D
Central
Controller
Unit 1
102
Sub
C C
D D
Vcc GND C D
PCB G G
Central
V V
Controller
A A
B B
Unit 2
TB6
❑ PC Borad of Simple Cental Controller
Group Number Setting S/W
Master /Slave Mode Select S/W
Master
The connection of Master and Slave
Slave
< Group Number 0 >
DIP
SWITCH
For Master the First switch of DIP switch should be ON and the
other three switches can be On or Off (Don’t Care Condition)
103 104 105 106 107 108
< Group Number 1 >
DIP
SWITCH
For Slave the First switch of DIP switch should be OFF and the
other three switches can be On or Off (Don’t Care Condition)
Vcc GND C D