Sime Vera 25 OF Open Chamber Boiler, 25 kW, Methane, Code 8110470 - Low Nox

Technical Features

Model

Sime Vera 25 OF 25kW Low Nox Open Chamber Methane Boiler

Product Code: 8110470

Energy Efficiency

Seasonal heating energy efficiency class C
Seasonal heating energy efficiency % 78.4
Heating sound power dB (A) 59
Health energy efficiency class A
Health energy efficiency % 80.3
Declared health load profile XL

Performance

HEATING PERFORMANCE
Heating adjustment range °C 20/80
Water content in the boiler: 3.15 l
Maximum operating pressure bar 3
Maximum operating temperature °C 85
Expansion vessel capacity 8 l
HEALTHCARE SERVICES
Nominal heat output kW 23.0
Reduced thermal output kW 10.0
Sanitary regulation range °C 10/60
Specific sanitary flow rate (EN 13203) l/min 10.0
Continuous sanitary flow rate (∆t 25/35°C) l/min 12.3/8.8
Minimum sanitary flow rate l/min 2.2
Min/max sanitary pressure bar 0.4/7.0

Dimensions

Dimensions HxWxD mm 700x400x250

General Features

• TRUE OF
  
  
  
  

• Low NOx wall-mounted boiler for heating and instant hot water production
  

• Installation type: B11BS
  

• NOx emission class 6
  

• Natural draft flue gas exhaust
  

• Microprocessor electronic board with automatic regulation of ignition power and maximum heating
  

• Automatic ignition with flame ionization control
  

• Degree of electrical protection against water IP X4D
  

• Low NOx atmospheric burner
  

• Stainless steel plate heat exchanger
  

• Heating system expansion vessel
  

• Motorized diverter valve
  

• Electronic gas valve for combustion feedback
  

• High-efficiency, low-energy system pump (ErP)
  

• Double element heating probe with safety thermostat functions
  

• Smoke safety device that interrupts the flow of gas to the burner in the event of a blocked chimney and/or lack of draught
  

• 3 bar system safety valve
  

• Anti-blocking function of the pump and diverter valve that activates automatically every 24 hours if there have been no heat requests
  

• Antifreeze function that activates automatically if the water temperature in the boiler falls below the value set in the “tS 1.0” parameter and, in the presence of an external probe, if the external temperature falls below the value set in the “tS 1.1” parameter
  

• Chimney sweep function that lasts 15 minutes and facilitates the task of qualified personnel in measuring the parameters and combustion efficiency and in checking the gas pressures at the nozzles
  

• Control panel equipped with display with self-diagnosis with numeric codes
  

• Knobs for regulating heating and domestic hot water temperatures
  

• Provision for connection of SIME HOME remote control (optional)
  

• Hydraulic fitting protection to be positioned under the boiler code 8094531 (optional)
  

• Integrated climate control Hydraulic pressure switch that blocks the boiler in case of lack of water
  

• Manual system loading device Water pressure control hydrometer

• Suitable for operation in a partially protected place according to EN 15502, with a maximum ambient temperature of 60°C and a minimum of - 5°C. Brass system connections (DIN)