Gabarron MATTIRA MAS15, Installation Instructions And User Manual

13 

When the heating mode is selected the display will show the 

temperature of the heating water.

We can modify the setting of the temperature of the water by pushing either the 

button or the 

button 

and using the same buttons to adjust the value that flashes on the display. The modified setting will be stored after 

a few seconds or instantly by pushing the

button. 

The heating setting can be varied between 8ºC and 85°C.   
The symbol H appears after the 85 value or before the 8 value. If this value is selected, the heating will function in 

anti-freeze mode. 

If the setting is higher than the actual temperature of the heating 
water, the heating will connect and a small red indicator of the 

consumption of heating resistances will light up. 

6.4 ANTI-FREEZE MODE (Frost Protection) 

It is possible to select an anti-freeze mode for frost protection during periods of inactivity. The power supply to 
the boiler must be maintained.  

By attempting to set a central heating temperature below the 8ºC value or above the 85ºC value the symbol H will 

appear on the display. By selecting this value, the heating will only work in anti-freeze mode i.e. if the boiler 

temperature falls to 7ºC the heating will activate automatically.   

6.5 USER PARAMETERS. 

The user can change a number of parameters to set some functions of the boiler to the needs of each customer. 

To access the user parameters menu – with front display OFF, press and hold the 

 and 

 buttons for at 

least 5 seconds. 

To move forward or backward through the menu use the 

 and 

 buttons respectively. 

To modify a parameter, press the 

 button and the current value will be displayed. It can be modified with the 

 and  

 buttons. Press the 

 button to validate. 

Modulation.

 Possible values: 1 (modulation ON), 0 (modulation OFF). 

Units.

 It is possible to change temperature units (ºC Celsius, ºF Fahrenheit). Default value: ºC. 

AUTO heating regulation

. If a fan outdoor temperature probe is installed it is possible to 

activate the auto heating regulation by shifting this parameter value to 1. Only shown when P05 is 

activated. 

TIMAX.

 Maximum water flow temperature in AUTO heating mode. Only shown when P05 is 

activated. 

TIMIN.

 Minimum water flow temperature in AUTO heating mode. Only shown when P05 is 

activated. 

TEMAX.

 Outdoor temperature from which the water flow temperature will be TIMIN. Only 

shown when P05 is activated. 

TEMIN.

 Outdoor temperature below which the water flow temperature will be TIMAX. Only 

shown when P05 is activated.