Airstream heat recovery
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AIRSTREAM Plug & play heat recovery unit BETTER, WORKS

STANDARDS AND CLASSIFICATION Classification of the Mark AIRSTREAM Energy efficiency class according to EUROVENT Energy efficiency class according to RLT directive AIRSTREAM CFX High efficiency counterflow plate heat exchanger Bypass AIRSTREAM HWX High efficiency rotary heat exchanger CABINET STRUCTURE Panels Inspection doors Filters Fans After-heater / -cooler Cooling AIRSTREAM heat recovery units in outdoor installation. MARK AIRSTREAM Plug & play heat recovery unit General description and application

Gas-fired condensing modulating heating module 18 TECHNICAL INFORMATION

Mark AIRSTREAM PLUG & PLAY HEAT RECOVERY UNIT Indoor air quality of buildings need to meet higher standards. In order to meet these requirements, intensive ventilation is needed. By applying basic ventilation equipment, a lot of energy is lost. To counteract the loss of energy, Mark has developed the AIRSTREAM. This heat recovery unit is equipped with a counter flow heat exchanger which has an efficiency of 90%. This means that 90% of the discharged energy is given back to the fresh supply air. Because of this high efficiency, no extra heating is needed in most cases. Examples of AIRSTREAM...

Mark AIRSTREAM is a high energy-efficient ventilation unit with heat recovery. The AIRSTREAM CFX is equipped with a high efficiency aluminum counterflow heat exchanger for recovering exhaust energy. The exchanger is also equipped with a “bypass” and “face” damper to be able to ventilate during the summer, without recovering unwanted heat. The AIRSTREAM HWX is equipped with a corrosion-resistant rotary heat exchanger made of seawater resistant aluminum. The unit is standardly equipped with a so-called enthalpy wheel. This wheel is extremely capable of transmitting heat and limits moisture...

Predicted Mean Vote -0.2 < PMV < + 0.2 -0.5 < PMV < + 0.5 -0.7 < PMV < + 0.27 -1.0 < PMV < + 1.0 Mark AIRSTREAM is specially designed to supply fresh air as efficiently and comfortably as possible into the room that needs to be ventilated. The compact units are suitable for all types of buildings, for example for offices of all sizes, as well as schools, museums, theatres, cinemas, etc. In order to design a good installation that meets the desired requirements and expectations, the parameters according to the standard NEN-EN 16798-1:2015 Energy Performance of buildings - Part 1 must be...

Table 3 - Design ventilation rate for non-adapted people for the dilution of emissions (bio-effluents) of people for different categories Category Expected Air flow per percentage of non-adjusted dissatisfied person Table 4 - Design ventilation quantity for diluting emissions of different types of buildings II III IV Minimal total ventilation rate for health Very low polluting building l / (s m2) 0,5 0,35 0,2 0,15 4 l / s per person Low polluting building l / (s m2) 1,0 0,7 0,4 0.3 4 l / s per person Non-low polluting building l / (s m2) 2,0 1,4 0,8 0.6 4 l / s per person Table 5 - Example...

Table 6 - Standard design CO2 concentrations above outdoor concentration assuming a standard CO2 emission of 20 L / (h per person) Category Corresponding CO2 concentration above outdoors in PPM for non-adapted people If the employees and other attendees are the determining cause of dust loads in the room, the CO2 concentration is a recognized standard for the assessment of air quality. Experience has shown that an increased CO2 concentration has a negative effect on the attention span. The values in Table 6 are used to determine the CO2 concentration in the room air and to take suitable...

The outdoor air filter must be selected in such a way that the requirements of the indoor air in the building are complied with taking into account the outdoor air category (Table 10 and Table 11). The dimensioning of filter sections must be the result of an optimization, taking into account the specific situation (run time, dust load, special local contamination situation, etc.). Depending on the level of particulate pollution in the open air and the desired quality of the supply air, different levels of filtration are required. The required filtration efficiency can be achieved by using...

Mechanical stability (DIN EN 1886) Class Max. deflection [mm/m] Quality Leakage through the casing at negative pressure (DIN EN 1886) Class Max. air leakage rate at 400 Filter class according to Quality Pa test pressure [l/(sm2)] EN ISO 16890-1 Bypass Leakage max. applicable filter class (DIN EN 1886) Class ISO ePMl>80% ISO ePMl>70% ISO ePMl>50% ISO ePM2,5>50% Coarse filter Max. filter bypass leakage k in % of the airflow Quality 0,5 + Standards and classification There are many standards and guidelines in the field of air-conditioning and air handling units. The most important standards...

ENERGY EFFICIENCY CLASS ACCORDING TO EUROVENT The entire range Mark AIRSTREAM heat recovery units are certified according to Eurovent. This European energy label for air handling units classifies an AHU on various aspects based on the European norms NEN-EN 1886 (mechanical performance) and NEN-EN 13053 (rating and performance). EUROVENT C E RT I FI ED PERFORMANCE To make sure all suppliers use the same test method and, above all, maintain their quality, they are subject to a review by Eurovent. Companies are regularly audited whether they still meet the measured reporting figures. This way,...

ENERGY EFFICIENCY CLASS ACCORDING TO RLT-DIRECTIVE In addition to the EUROVENT-classification, the AIRSTREAM heat recovery units are also certified according to the RLT-Direction-01. EUROVENT and RLT are similar organizations that aim to give a transparent picture of the air handling units offered by the supplier. RLT Richtlinie-01 mainly focuses on the German market. A+ 3LT The energy efficiency class for RLT-approved air handling units is based on the DIN EN 13053: 2012, in which the air velocity, power uptake of the motors and heat recovery of the diagonal heat exchanger are defined. If...