Shuttle Valves Valve Inspection - Nibe HPAC 42 Instrucciones De Instalación Y Mantenimiento

18
Heating/cooling modes are controlled by 4 shuttle
valves, which depending on the outdoor temperature,
switch between the different modes.
The window on the
valve can either be blue
or black depending on
whether FIGHTER 1330
is heating or cooling.
Heating
Passive cooling
Active cooling
The above applies when the installation is voltage fed.
* When a room sensor is connected, RG 10, see
FIGHTER 1330 Installation and Maintenance
Instructions, section Description of Functions
— Basic functions > Room control.
Shuttle valves
Valve inspection
129
3V
3V
MODULO
NORDICOLD
NORDICOLD
blue
blue
black
129
130
HPAC 42
When changing the heating/cooling
mode there is a delay of approximately
90 seconds before the position of the
shuttle valves changes.
130
3V
MODULO
NORDICOLD
blue blue
blue black
black black
AJ
NOTE!
131 132
3V
MODULO
NORDICOLD
blue
black
black
131
132
MODULO