LA21AS

LA21AS

LA21AS

Product catalog summary
Overview
The Hexonic asymmetric brazed plate heat exchanger, model LA21AS, is specifically designed for heating applications. It features a unique channel system that maximizes heat transfer efficiency on the higher flow rate side while minimizing pressure drop on the secondary circuit. This design allows for a compact size and the use of lower power pumps in central heating systems, offering up to 18% higher efficiency compared to standard exchangers.
Advantages
  • Compact size and higher performance.
  • Lower pressure drop and improved heat transfer.
  • Reduced carbon footprint and refrigerant requirements.
  • Higher capacity with smaller heat pump systems.
  • Available in stainless materials.
  • Less water pressure drops and increased maximum water flow.
  • Higher flow turbulence due to active front plate forming an additional channel.
Technical Data
  • Maximum Pressure: 16 bar
  • Maximum Temperature: 150°C
  • Minimum Temperature: -195°C
  • Plate Dimensions (F [mm]): 10 plates - 34 mm, 20 plates - 57 mm, 30 plates - 80 mm, 40 plates - 103 mm, 50 plates - 126 mm, 60 plates - 149 mm
Applications
  • Gas-fired boilers: High efficiency and performance, capable of heating buildings and supplying domestic hot water (DHW).
  • Residential district heating substations: Compact devices providing heat to single apartments, allowing individual control over heating and hot water.
System Components
  • Domestic hot water exchanger and central heating exchanger.
  • Outdoor temperature sensor and controller.
  • Domestic hot water valve and differential pressure controller.
  • Central heating control valve and primary heat exchanger.
  • Sanitary water supply, pump, radiators, and three-way valve.
See more

Catalog excerpts

LA21AS-2

I F YO U L O O K F O R B E T T E R PERFORMANCE AND MORE EFFICIENCY I N YO U R H E AT I N G I N S TA L L AT I O N – W E TA K E U P T H E C H A L L E N G E ! HIGHER CAPACITY HIGHER The Hexonic asymmetric brazed plate heat exchanger is designed especially for heating applications. Special system of the channels ensures maximum heat transfer efficiency on the higher flow rate side with a minimum pressure drop on the secondary circuit. The biggest advantage of the asymmetric heat exchanger is its compact size and the possibility of using lower power pumps in central heating systems. LOWER PRESSURE...

 Open the catalog to page 2
LA21AS-3

WORKING PARAMETERS MAX. PRESSURE — 16 BAR MAX. TEMPERATURE — 150°C MIN. TEMPERATURE — -195°C Asymmetric plate heat exchangers allow independent optimization of both fluids for maximum thermal efficiency and economy. The unique plate design allows for operation in conditions where one of the media has much higher flow rate. ACTIVE FRONT PLATE FORMS LESS WATER PRESSURE DROPS INCREASED MAXIMUM WATER FLOW HIGHER FLOW TURBULENCE

 Open the catalog to page 3
LA21AS-4

GAS-FIRED BOILERS RESIDENTIAL DISTRICT HEATING SUBSTATION Gas-fired boilers are heating devices characterized by a high efficiency and performance. A residential substation, also called individual apartment substation, Gas-fired combination boilers have been designed in a way that enables is a compact device providing heat to a single apartment. It transfers the unit to heat the building and supply domestic hot water (DHW) the heat from a local boiler room or a district heating substation heated in a flow system. If hot water is needed, the boiler will switch supplied by a city heating grid to...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.