Sell combi boiler for central heating

Description

Ailunsi central heating water boiler heaters feature with following: Digital controller with large scale integrated circuit, LCD temperature display and multi-functional diagnostic function, User-machine conversation, shows current temperature and working status of the system including frostbit-proof and anti-freezing status, normal heating status, multi-timming programm setting status, diagnostic failure status. Suitable for many type of gas Rated gas pressure(Pa), LPG ***0, NG ***0, Coal gas ***0, Environment friendly, CO(a=1)exaust, 0.**7% Heat efficiency and energy-saving, *0% of heat efficiency, â…¡ grade, Safe, secure with *0 protection fuction, Remote controller and room temperature thermostat is optional, Constant sanitary hot water temperature with water flow stabilization sensor. Closed and pump forced waterway circulation, The main integrated controller is compatible to various architecture heating and ventilation system including radiators, fin, floor heating, fan coil, Multi-timing program for hourly, daily, weekly, Ailunsi gas boilers with *0 protection function, Frostbit-proof and anti-freezing detection and heating fuction at 2 stages of 5 Centigrade and 8 Centigrade, when the sytem detect the circulating water temperature is lower than 8 Centigrade, the system start at the first frostbit-proof heating situation, the water pump runs automatically.When the system detect the circulating water temperature is lower than 5 Centigrade, the system start at the second anti-freezing heating situation, the water pump runs automatically, and the combustion work to heat the water at minimum power status.When the water temperature is up to *0 Centigrade, the system stops working automatically. Water pump anti-stagnant, Every *4 hours of standby, the water pump runs automatically for one minute, effectively preventing circulating waterway being stagnant, preventing water pump from being stagnant. Bypassing protection, When the main heating circulation is closed or blocked by accident, the by-pass valve is opened automatically to provide suibable water flow in the main heating exchanger to protect the system . Sanitary hot water first, and waterflow monitoring function, When the water flow is monitored too small, the sanitary hot water will be firstly preferencely provided, and the diagnostic status show the code indicating the circulating water is insufficient, Guarding against over high temperature, When the water temperature is up to the utmost margin temperature Centigrade, the gas proportioning vaalve is closed and the system stops working. Wind pressure switch protector, When the fan motor is out of order, when the flue is blocked, or the backwards air pressure is too high or if there is backwards wind, the wind pressure switch automatically close the boilers, and the combustion stops, the diagnostic code will show on the LCD. Safety valve preventing the heating water system from over high water pressure. When the pressure in heating water system is up to 3bar, the safety valve protector opens automatically to decrease pressure. Flameout protectors , When the combustion is stopped by accident, the gas proportioning valve is closed automatically in *0 seconds. Also there is re-ignition protector. Automatic protectors monitoring failured thermal sensor and multi-functional diagnostic, When the thermal sensor on the heating pipe or on the sanitary hot water pipe was encountered short circuit, or broken, or the resistance is abnormal, the failure can be diagnosed and the diagnostic code will be displayed on the controller LCD display pannel. Protectors anti-high voltage loading