HYDRAULIC CONFIGURATION 0 (zero) - sanitary kit

In Hydraulic Configuration 0 (zero), the Aqua Moretti Design stove or boiler is connected with the Moretti Design sanitary kit.

Flow switch (FL)

Parameter P84 = 5

59 GND: yellow cable
58 IN13: blue cable
43 +V : red cable

Solenoid valve (P2)

17: towards the system

18: towards the exchanger

NOTES:  THE DIVERTING VALVE IN OFF STATE IS SWITCHED TOWARDS THE SYSTEM.

Rear connector connections

 Some models of AQUA stoves have connectors on the rear.

Parameter P74 = 5 this parameter is used to enable the flow switch (FL) connected to output S2

INSTALLATION OF ROOM THERMOSTAT (T/A – clean contact)

It is possible to install a room thermostat (T/A – clean contact) by making the following parameter settings.

Connect the thermostat cables to the back of the machine, at the terminal identified with the symbol “T”.

SYSTEM MENU – SETTINGS

Parameter P99

• P99 = 1 (factory setting)
• P99 = 0 → Inverts the contact from N.O. (Normally Open) to N.C. (Normally Closed)

Parameter A01

Defines the machine's response mode to the thermostat request:

• A01 = 1 (factory setting) → from Normal to Modulation
• A01 = 0 → from Normal to Off (ON/OFF)
• A01 = 2 → from Normal to Stand-by
• A01 = 4 → from Normal to Stand-by with pump lock (P1)

SYSTEM MENU – TIMES

Parameter T45

• T45 = 0 → Set this value to enable the Room Thermostat (T/A) function

IMPORTANT NOTE

In case of installation of a wired room thermostat, it is necessary to disable the radio thermostat of the remote control.

Procedure:
User Menu → Settings → Radio Thermostat → set to OFF.



Example:  

Frost Thermostat Th18 = 5 °C,

Pump activation Thermostat Th19 = 53 °C,

Sanitary Thermostat_1 Th20 = 50 °C,

Sanitary Thermostat_2 Th21 = 72 °C

Logic 

Heating

The pump activates above Thermostat Th20 (50 °C); to prevent water freezing it activates if the water temperature falls below Thermostat Th18 (5 °C). If the water temperature exceeds the value of Thermostat Th21 (72 °C) for safety reasons the Pump is always active.

Recirculation

When there is a demand for sanitary water and the water temperature in the boiler exceeds the value of Thermostat Th19 (53 °C) or the water temperature in the boiler exceeds the value of Thermostat Th20 (50 °C) the Valve is active. If the water temperature exceeds the value of Thermostat Th21 (72 °C) the valve switches towards the system.