360° view

Have a 360 degrees look at our machine. And some more info.


Learn more about what the main advantages of hybrid HVAC solutions for fresh air treatment
  • 3E - Concept
  • 2 Stage Heat/Cool
  • All in 1
  • 100% Factory tested
  • 100% Plug and play

1е - Every Climate – from -20°C to +40°C

2е - Every Application – suitable for every application where 100% fresh air is needed, by means of covering all possible air treatment processes:

    Recirculation – 0÷100%
    Heat recovery
    Cooling + Dehumidification
    Proces Ventilation

3е - Every Installation - suitable for all types of mounting, indoor (machinery rooms, technical floors, etc.) and outdoor

Recovering up to 100% of the extract heating/cooling, achieved - "consecutively" in 2 stages: 

1st stage - "passive heat recovery" - using air-to-air plate heat exchanger to recover up to 65÷70% of the extract heat from the room 

2nd stage - "active heat recovery" - using the evaporator of the air-to-air heat pump to recover from 65÷100% of the extract heat from the room

The max.e-pool is an autonomous module heat recovery ventilation unit containing an biult-in heat pump, automation, and a control system.

High reliability and reduced installation costs, achieved by 100% factory tests - each unit is tested under factory conditions. 

The test includes:

  - Leakage check 
  - Vacuuming and loading the system with the exact refrigerant quantity 
  - Functional testing of all fans and compressors 
  - Vibrations 
  - Loading the controller's software 
  - Temperature and pressure checks 
  - Setting up the required air flow 
  - Recording all parameters of the unit on the test list

A standalone "one-piece" unit, which only needs a duct system and power supply for its start up.


  1. Standstill mode (without swimmers)
  2. Winter mode - dehumidification with heat pump
  3. Transitional periods - ventilation and heat pump
  4. Summer mode - ventilation without heat pump
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Take a look at the improved technology

  • Much higher dehumidification capacity compared to the classical systems
  • Lower operating (energy) costs compared to the classical systems
  • More compact design
  • Lower refrigerant content compared to the classical systems

Processes in Covered swimming pools

Processes and Energy Efficiency
Each swimming pool has to offer optimal microclimate conditions of its visitors. The high relative humidity and condense in the rooms and especially in the halls of the covered swimming pools reduces significantly the comfort and, at the same time, leads to damaging of the building structure and the equipment within it. How to handle with these situations?
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Processes in Covered swimming pools


Everything you need to know about the machine’s components

  • Design

    max.e-pool is designed as a system with the structure of the unit manufactured as a mono-block. The construction is manufactured from high-quality profiles made of extruded aluminium characterized by high strength and resistance to adverse weather conditions. 

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  • Plate Heat Exchanger

    Plate Heat Exchanger

    For all of the units of the type max.e-pool are used plate air-to-air heat exchangers, made from aluminium fins - “epoxy” coated, with condensate drain pan. This special cover of the plate heat exchanger allows extending their useful life and also their best levels of performance for a long time. 

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  • Heat Pump

    100% DX unit 
    No additional water, electric or DX heating/cooling coils are needed in the max.e-pool, which makes it independent of other additional heating/cooling sources (boilers, chillers, VRF systems, etc.) 

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    Heat Pump
  • Fans


    max.e-pool use ZAbluefin plug fans with latest EC Blue (Electronically Commutated) from the company Ziehl-Abegg. Fan wheel statically and dynamically balanced on the axis of the direct-driven motor. Fan wheel, together with the motor, is mounted on a common base frame with vibration dampers. 

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  • Automation System

    max.e-pool is fully equipped with all necessary automation and all executive mechanisms. The electric switchboard is integrated into the unit and located on the operation side. The "Brain" of max.e-pool is its specially designed by Damvent controller, which controls and manages all processes and protects the unit from eventual cut-offs.

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    Automation System
  •  Connectivity and mobility

    Connectivity and mobility

    All hybrid units allow into the corresponding connector of the ICB controller to be mounted specialized internet circuit board for internet connection. The built-in circuit board allows a permanent internet connection to max.e from any location in the world. This option helps you/us to make adequate reaction to situations requiring fast and accurate solutions to the problem.

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  • Filters

    Filters are installed at the entrance of the unit to ensure the normal operation of the AHU and to prevent contamination of the components.
    Microcell filters are used in the units max.e-pool. These filters are made of plated micro-glass paper and spaced with hot melt adhesive beads, which are uniformly positioned to deliver optimum airflow.

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Learn more about what are the main advantages of our hybrids
  • For Investors
  • For designers/consultants
  • For installing companies

  • Initial investment cost reduction
  • Installed electricity power reduction
  • Lower operating (energy) costs
  • Saves space 
  • Absence of "defrost" mode and maintains continuous working of the unit
  • Easy maintenance – only one unit
  • Internet monitoring
  • 100% test in factory conditions
  • Low sound parameters
  • Selection software is available
  • Saving time during the process of design
  • Flexibility when there is lack of space
  • Fast and easy calculations for yearly operation (energy) costs
  • Absence of "defrost" mode
  • Easy installation (needs only duct connections and power supply)
  • BMS connection via different protocols
  • Settings via internet
  • No need for refrigeration work

Capital Cost Comparison

Hybrid AHU with implemented heat pump automation and control system

Traditional Systems
  • AHU with DX/water section
  • Outside mounted air-cooled heat pump
  • Boiler for the water systems – for working on very low outside temperatures
  • Pipes, fastenings, isolation, etc.
  • Pumps (for water systems)
  • Extra Labor
  • Common automation and controlling system
  • Higher installed power electricity capacity – higher costs for wiring
  • Higher BMS costs – two or more systems
  • More space for installation

Technical data

All max.e units are subject of continuing improvement and future development! Following its policy of continuous improvement, Damvent Ltd. reserves the right to make any further changes without the need to inform its customers and partners! Damvent shall not be responsible for any direct or indirect losses, expenses, costs, or damages of whatsoever nature, arising out of or resulting from the use of any technical data, drawing or selection software available on this website.

AHU Type min/max airflow [m3/h] max.e3 pool-02 1000/2000 max.e3 pool-03 2000/3200 max.e3 pool-04 2000/4000 max.e3 pool-06 4000/7000 max.e3 pool-09 5500/10000 max.e3 pool-13 9000/14500 max.e3 pool-20 13000/20000

Files to download

You can download the general overview and dimensions of the units in Revit Family, AutoCAD and PDF files.

Drawings DWG for max.e-pool
View file

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Our other products

You can download the Autocad files of the machines here.


World`s 1st single/common concept to provide Simultaneously heating, cooling and 100% fresh air (Ventilation) within ambient temperature range -30оC to +50oC with only 1 external unit (VMF).

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max.e-mini - Hybrid AHU with “2-stage thermodynamic heat recovery technology”- recovering up to 100% of the extracted heat from the room.

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max.e2 - Hybrid AHU with "2 stage thermodynamic heat recovery technology"- recovering up to 100% of the extract heat from the room.

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