Product Overview
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Product Snapshot Type Condensing Forced Draft Range 115-160kW Efficiency 105.1% (Net) 97.8% (Gross) Outdoor Option Yes Fuel Type Natural Gas, LPG Gas Approval Type Type A Modulation Up to 1:10 Cascadeable Yes Max Pressure 500 kPa Low Nox Yes Building / Code Yes In this video, Cameron Plaisted demonstrates some features of the new Meridian Link condensing boilers.Meridian Link delivers exceptional condensing performance with net efficiencies exceeding 105% at 50/30°C return temperatures. With true 1:10 modulation and proven field reliability spanning over 25 years, Meridian Link represents the evolution of condensing technology you can rely on. -
- Exceeds 105% net efficiency at 50/30°C return temperatures
- True 1:10 turndown ratio (1:6 for 160kW model)
- Class 6 NOx emissions – ultra-low polluting emissions
- Optimized premix burner for perfect combustion and flame stability at all power levels
- Modulating circulation pump with built-in degasser optimizes electrical consumption based on Δt°
- Return water temperature optimization for maximum efficiency
- Compact dimensions: 555W x 885L x 1296H mm – fits through standard doorways
- NEW – Easy front access to internal pump for maintenance
- NEW – Minimal rear clearance requirements
- Pre-assembled hydraulic and gas manifolds for easy cascade connection
- Factory-fitted components reduce installation time
- Integrated circulation pumps provide 60kPa external head pressure
- Cascade configurations up to 3000kW (two rows of 12 units)
- Smart cascade controls with lead-lag rotation
- 0-10V modulation interface
- Over 40 configurable parameters
- Full BMS integration with RS485 connection directly to each boiler for HLI points
- Pre-configured cascade controls for seamless multi-unit operation
- Stainless steel heat exchanger for long-term condensing operation
- Over 25 years of proven field performance with continuous technical improvements
- Designed for cold environments with comprehensive freeze protection
- Natural gas and LPG compatible
- Advanced antifreeze protection with electronic probe
- Antifreeze function operates even without gas supply
- Ultra-quiet operation < 45dBA with sound-absorbing panels
- Room sealed design allows limited free ventilation and prevents contamination from pool chemicals or other fumes
- Ideal for heating systems in civil/commercial applications

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Gas Pressure: 2.0 kPa or 20mbar
Minimum Water Pressure: 1.2 bar
Maximum Water Pressure: 5 bar
Model Unit ML 115 ML 160 Output 50/30°C kW 113.5 157.5 Net Efficiency 50/30°C % 105.1 105 Output 80/60°C kW 104.9 144.6 Net Efficiency 80/60°C % 97.2 97.8 Nominal Input MJ/hr 432 599 Modulation Ratio 1:10 1:06 50:30 Maximum flow rate l/s 1.35 1.88 Water Pressure Loss kPa 25 28 Total Water Volume litres 16 18.5 Dry Weight kg 170 180 Height mm 1296 1296 Width mm 555 555 Depth mm 885 885 Flue Connection size** Ø mm 100* 100* Air intake size mm 100 100 Power Supply V/Hz 240/50 240/50 * If flue length is greater than 2m use Ø 160mm
** The size of the main flue may vary from the flue connection size subject to various installation criteria.
Notes:
- For assistance with flue sizing, please discuss your project details with our technical support team.
- The internal pump can provide 60 kPa external head pressure.
- All secondary pumps must suck from the top of the hydraulic separator and pump into the field.
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- Precision engineering and skilled workmanship ensure the success of each Meridian cascade configuration.…



