Calidia - The hybrid ready condensing boiler

Technical Information

Thanks to its characteristics, Calidia it is ideal for replacing old boilers and adapts to all the needs of pre-existing systems.

It is a wall-mounted gas condensing boiler for heating and instant hot water production, with sealed chamber and forced draft or open chamber and forced draft.

Calidia it is available in the nominal powers declared by 25 kW or 30 kW as needed.

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Main advantages

 ⇒ Energy efficiency class: Class A in heating

 ⇒ Class energy efficiency: Class A sanitary XL profile

 ⇒ Low emissions of NOx (class 6 according to EN 15502) and CO

 ⇒ Front opening to allow easy maintenance

 ⇒ Switching from the use of one gas to another from the control panel menu

 ⇒ Can be integrated with Rossato hybrid systems and heat pumps

The new Calidia is one hybrid ready condensing boiler, ready for use in hydrogen systems.

Heating Thermal Range CALIDIA 25: Qn / Qmin 20.0 ÷ 2.0 kW CALIDIA 30: Qn / Qmin 34.0 ÷ 3.0 kW	Sanitary production CALIDIA 25: ΔT 25 ° C - 14.0 l / min CALIDIA 30: ΔT 25 ° C - 15.5 l / min	Energy efficiency CALIDIA 25 - 30: Heating: A Size-class sanitary ware: XL A	emissions CALIDIA 25 - 30: Class NOx - 6	Dimensions: CALIDIA 25 - 30: L: 400 mm W: 245mm A: 705mm

The use of the condensing boiler in a hybrid system

A is preferred hybrid system for redevelopment, modernization or integration interventions on existing plants, or on new systems to meet the needs of domestic hot water, heating and cooling.
The HYBRID REVO Rossato systems arise from the union between the series heat pump AIR INVERTER and the series condensing boiler CALIDIA, two different but complementary elements: the first powered by electricity and the second by GAS.
The thermal energy required is mainly produced by the heat pump and, in integration or replacement, the boiler managing the hybrid system via smart regulation.

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Internal structure of the hybrid boiler

1. Sealed Chamber
The hermetic closure of the combustion group ensures maximum silence and high safety standards 

2. Combustion group in stainless steel
Stainless steel exchanger with extra wide water passages: the internal section of the coils has been increased by 4 times compared to the market standard.

3. Electrode + Combustion Sensor

4. Increased fan

5. 1:10 Modulation Mixer
It is able to adapt to any system, since it is able to modulate its power based on the actual thermal needs of the system.

6. Side expansion vessel 8 liters

7. Condensate siphon

8. Adaptive Gas Valve
Optimize the warehouse: a single code for all types of gas (works with all types of gas without requiring the replacement of the nozzles).

9. ICS (Intelligent Combustion System)
The system controls the combustion values ​​and regulates the gas flow rate so as to always have the correct air/gas ratio, thus obtaining a reduction in gas consumption, lower emissions, less installation time or manual adjustments.