KALDAIA 28/35 MTN
CONDENSING
Wall-mounted boilers:
Thirty years of experience in designing and creating solutions for heating rooms and domestic hot water have allowed us to create two ranges of high-quality boilers: condensing, both internal and external, and open-chamber with low NOx emissions. INNOVITA products are designed, tested and manufactured entirely in our laboratories in Bosisio Parini (LC), thus guaranteeing a high level and quality of Made in Italy.
Features:
• Kaldaia is designed, tested and entirely produced in our Bosisio Parini plant, thus guaranteeing a high level and quality of Made in Italy
• The primary exchanger is made with a single stainless steel coil with a large internal section to ensure high efficiency and reduced pressure drops, furthermore the coil structure guarantees easy maintenance and reduced impurity deposits
• The high-efficiency, low-consumption class A circulator guarantees significant electricity savings
• The active combustion control system regulates the gas flow to maintain the air/gas ratio constant, thus obtaining reduced gas consumption and continuous control of polluting emissions
• Very quiet
• Modulation up to 1:9
• Kaldaia is equipped with high-performance components
• Kaldaia's layout allows for quick disassembly of the main components
• Kaldaia is perfect for replacements and offers high performance on new and old generation systems
• Easy gas conversion: no mechanical operation on the product is required.
User interface:
Equipped with an easy-to-use digital display, Kaldaia is easily manageable by the user in a clear and intuitive way. The presence of specific function keys allows to set the temperatures of the domestic hot water system and the heating system and to monitor the operation of the appliance.
Dimensions:
Kaldaia 28/35
✓ MR 3/4'M
✓ AC 1/2'M
✓ G 3/4'M
✓ AF 1/2'M
✓ R 3/4'
✓ Heating flow MR
✓ Hot water outlet AC
✓ G gas
✓ AF cold water inlet
✓ R heating return
Data valid for the following gases: MTN (G20) - LPG (G31)
| Kaldaia 24/30 | Kaldaia 28/35 | Kaldaia 32/35 | |
|---|---|---|---|
| Type of application | B23-B23P-B33-C13-C33-C43-C53-C63-C83-C13X-C33X | ||
| HEATING/DHW Nominal heat input (kW) | 24/30 | 28/34.6 | 32/34.6 |
| HEAT/DHW Minimum heat input MTN (kW) | 3.5 | 4.5 | 5.0 |
| HEAT/DHW Minimum heat input LPG (kW) |
5.5 | 6.0 | 6.5 |
| HEAT Nominal heat output 80÷60 °C (kW) | 23.2 | 27.1 | 31.1 |
| HEAT Nominal heat output 50÷30 °C (kW) | 25.2 | 29.5 | 33.5 |
| HEAT Minimum heat output 80÷60 °C MTN (kW) | 3.5 | 4.5 | 5.0 |
| HEAT Minimum heat output 80÷60 °C LPG (kW) | 5.5 | 6.0 | 6.5 |
| DHW Nominal heat output (under average conditions) (kW) | 30 | 34.6 | 34.6 |
| DHW Minimum heat output (under average conditions) MTN (kW) | 5.3 | 4.5 | 6.3 |
| DHW Minimum heat output (under average conditions) LPG (kW) | 5.3 | 5.8 | 6.3 |
| Useful thermal efficiency 80-60°C max-min (%) | 96.7 - 95.2 | 96.8 - 95.7 | 97.2 - 95.7 |
| Useful thermal efficiency 50-30°C max (%) | 105.0 | 105.4 | 104.7 |
| Useful efficiency at 30% of max (return at 30°C) (%) | 107.4 | 107.5 | 107.1 |
| Efficiency at an average temperature of 80°60°C (%) | 96.6 | 96.9 | 97.4 |
| Efficiency at 30% of average (return at 30°C) (%) | 106.3 | 107.5 | 107.3 |
| Combustion efficiency (%) | 97.4 | 97.5 | 97.5 |
| Heating temperature selection range (min-max) (°C) | 40-80 | 40-80 | 40-80 |
| Expansion vessel preload (bar) | 1 | 1 | 1 |
| Maximum heating pressure (bar) | 3 | 3 | 3 |
| Maximum heating temperature (°C) | 90 | 90 | 90 |
| Continuous sanitary flow rate ΔT 30 K (l/min) | 14.3 | 16.5 | 16.5 |
| Minimum domestic water flow rate (l/min) | 2 | 2 | 2 |
| Domestic water pressure (min-max) (bar) | 0.13 - 6 | 0.13 - 6 | 0.13 - 6 |
| Power supply voltage/frequency (V-Hz) | 230/50 | 230/50 | 230/50 |
| Maximum total electrical power (heat-san) (W) | 87-103 | 95-121 | 98-130 |
| Protection index (IP) | IPX4D | IPX4D | IPX4D |
| Condensation PH (PH) | 5 | 5 | 5 |
| Maximum heating flue gas temperature MTN-LPG (°C) | 79 - 77 | 75 - 76 | 68 - 67 |
| Boiler dimensions (HxWxD) (mm) | 740x400x335 | 740x400x335 | 740x400x350 |
| Boiler weight (kg) | 31 | 33 | 35 |
| Sanitary load profile | XL | XL | XL |
| Seasonal space heating energy efficiency class | A | A | A |
| Water heating energy efficiency class | A | A | A |
Product code: 30001851
