Central Heating (Ch) And Domestic Hot Water (D.h.w.) Temperature Adjustment - Baxi Luna 3+ Operating And Installation Instructions

3.1 SYMBOL MEANING
There are 4 power levels displayed during boiler operation
regarding the gas boiler modulation, as shown in figure 2:
Figure 2
3.2 DESCRIPTION OF BUTTON (SUMMER - WINTER - HEATING ONLY - OFF)
Press this button to set the following boiler operating modes:
• SUMMER
• WINTER
• HEATING ONLY
• OFF
In the SUMMER mode, the display shows (
). The boiler satisfies requests for DHW only while central heating is NOT
enabled (ambient frost protection function active).
In the WINTER mode, the display shows (
and ). The boiler satisfies requests for both DHW and central heating
(ambient frost protection function active).
In the HEATING ONLY mode, the display shows (
). The boiler satisfies requests for central heating only (ambient frost
protection function active).
In the OFF mode, the display shows neither of the above two symbols ( ) ( ). In this mode only the ambient frost
protection function is enabled, any other request for DHW or heating is not satisfied.

4. CENTRAL HEATING (CH) AND DOMESTIC HOT WATER (D.H.W.) TEMPERATURE ADJUSTMENT

+/-
The CH ( ) and D.H.W. ( ) temperature adjustment are carried out by pressing the relative buttons (figure 1).
When the burner is lighted the display shows the symbol ( ).
CENTRAL HEATING (CH)
The system must be equipped with a room thermostat (see the relevant regulations) to control the temperature in the rooms.
During a CH mode, the display shows a CH ( ) blinking symbol and the CH flow temperature value (°C).
DOMESTIC HOT WATER (D.H.W.)
During a D.H.W. request, the display shows a D.H.W. ( ) blinking symbol and the D.H.W. flow temperature value (°C).
There are two different setpoint which can be quickly set: ECO and COMFORT.
To adjust the temperature values, proceed as follows:
ECO
The ECO temperature setpoint allows the user to quickly set the relative domestic hot water temperature pressing the
P button. In eco function the display reads out "eco". To set the ECO temperature setpoint press the +/-
buttons.
COMFORT
The COMFORT temperature setpoint allow the user to quickly set the relative domestic hot water temperature pressing
the P button. To set the COMFORT temperature setpoint press the +/-
buttons.
Note: during a D.H.W. demand, with a D.H.W. storage tank connected to the gas boiler, the display shows the ( ) symbol
and the flow tank temperature value.
INSTRUCTIONS PERTAINING TO THE USER 7217395.01
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