LG PQWRHSF0 Manual page 13

Installation method:
• Connect main lead wires between main PCB and Zone Control.
• Connect thermostat to Zone Control according to thermostat maker's manuals.
• Connect Damper Motor to Zone Control according to Damper Motor maker's manuals.
• Wiring also depends upon the type of the damper actuators.
• Spring Return Damper Actuators
Indoor Unit
Trans : 12VA"
(24V/130mA*4)
Trans
Main"
PCB
• Non Spring Return Damper Actuators
Indoor Unit
Trans : 12VA"
(24V/130mA*4)
Trans
Main"
PCB
By Pass Damper System :-
Return
To maintain an adequate flow of air and static pressure through the HVAC system, a by-pass system can be used that is
equipped with a motorized damper and a static pressure control.
Controller accessories
Thermostat " 1
CH1
Zone"
CH2 Thermostat " 2
Controller"
CH3 Thermostat " 3
PCB
CH4
Thermostat " 4
COM
COM
COM
COM
AC 24V
24V
24V
Power Input
24V
AC(L) AC(N)
AC220~240V 50/60Hz
Thermostat " 1
CH1
Zone"
CH2 Thermostat " 2
Controller"
CH3
Thermostat " 3
PCB
CH4
Thermostat " 4
COM
COM
COM
COM
AC 24V
24V
24V
Power Input
24V
AC(L) AC(N)
AC220~240V 50/60Hz
HVAC
By-pass damper
24 VCA"
power supply
40 VA"
transformer
L
Damper"
Motor"
" 1
N
S
Damper"
Motor"
" 1
N
Closed
Open
NC NO
Common
Pressure controller
L L
Damper" Damper" Damper"
Motor" Motor"
" 2 " 3
N N
S S
Damper" Damper" Damper"
Motor" Motor"
" 2 " 3
N N
L": Live"
N": Neutral"
S": Signal
Supply
Static"
pressure "
control
2" 3"
" "
1"
"
3-channel damper motor
Zone Control
L
Motor"
" 4
N
S
Motor"
" 4
N
375