THREE-WAY VALVE - ELECTRICAL CONNECTIONS

AQUA Stoves – Moretti Design

On AQUA stoves by Moretti Design, the three-way valve can be connected to the NG21 control unit – connector A2, depending on the type of actuator installed.
 

Types of connections:
 

1. Three-way valve with spring return

NG21 control unit connection (A2):

• PIN 16 → N (Neutral)
• PIN 18 → Fon (Phase ON)

2. Three-way valve with ON phase / OFF phase

NG21 control unit connection (A2):

• PIN 16 → N (Neutral)
• PIN 17 → Foff (Phase OFF)
• PIN 18 → Fon (Phase ON)

3. Three-way valve with ON / OFF phase + fixed phase

NG21 control unit connection (A2):

• PIN 16 → N (Neutral)
• PIN 17 → Foff (Phase OFF)
• PIN 18 → Fon (Phase ON)
• PIN 19 → F (Fixed phase)

Technical notes

• Always verify the type of actuator before making connections.
• Incorrect connections may cause malfunction of the valve or the NG21 control unit.
• Operate only with the electrical power turned off.