DESCRIPTION
08
TECHNICAL DOCUMENTATION
GENERAL
The Mikrofill ETHOS RS floor standing boilers are environmentally friendly gas fired heating boilers with a
modulation range between approximately 10% and 100% of their maximum output. The appliances have low
NO
X
and CO emission, which satisfies the most stringent environmental requirements.
The boiler is delivered fully wired, fully assembled, tested and preset complete with emissions report.
WORKING PRINCIPLE AND DESIGN
Air is drawn in as required, via a variable speed fan. The gas valve measures the negative pressure (draught)
in the venturi and modulates the gas valve in response. The gas and air is then thoroughly mixed in the correct
ratio in the fan housing and fired directly into the burner.
The boiler management system compares the actual water flow temperature to the required water
temperature. The management system computes the load required and adjusts the fan speed. This is a
continual process during operation.
The heat transfer takes place in a stainless steel triple heat exchanger block. The burner fires into the primary
heat exchanger whilst the second heat exchanger (condenser) is connected downstream in such a manner
that the condense water cannot enter the primary heat exchanger, all heat exchangers consist of several
smooth pipes in the form of a coil and are connected using stainless steel water distribution manifolds.
APPLICATION FEATURES
The design of the boiler incorporates the following:
• Full Operation and Fault Diagnostics via LCD.
• Control / High Limit Sensors.
• Integral DHW Control (DHW Input Signal Required).
• Integral Safety Relief.
• Integral Weather Compensation (Optional External Sensor Required).
• Frost Protection.
• Pressure Read Out.
• Compatible with most External BMS Options.
• Room Sealed (type C53).
The ETHOS RS range has received CE approval for all relevant European countries and
has been registered under the Product Identification Number 86CL109.
Содержание Ethos RS 350
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