VPM 240 Cleanroom

VPM Cleanroom is a unique ventilation unit with heat recovery. It uses new, ground-breaking, patented technology that prevents supply air from getting into contact with extract air. It does so with great efficiency. This prevents an exchange of microorganisms such as bacteria, particles or other pollutants in the air. As a result, there can be no potential contamination of the supply air.

VPM Cleanroom is particularly suitable in relation to businesses and industries that have high requirements to hygiene, such as laboratories, operating theatres and in the food industry.  

The VPM Cleanroom unit is a compact construction, and it therefore does not take much space. The unit is delivered as an assembly-friendly modular construction, which makes it easy to install. 

Airflow (see planning data for SEL/SFP values)

Min : 800 m3/h
Max : 2850 m3/h

No contamination

VPM Cleanroom is built from individual compartments, which helps prevent contamination. Each compartment has an integral condensate tray from stainless steel and a drain for condensate water. The division of the unit into individual compartments makes access easy when carrying out maintenance and cleaning.  

No screws or blind rivets have been used in the construction of the unit, which helps prevent leakages. The control system and frequency converters are placed on the front exterior of the unit in order to keep all surfaces inside the unit as even and smooth as possible. In addition, a closing mechanism has been developed especially to avoid breaking the evenness of the inner surface of the unit. The smoothness of the surfaces helps minimise the risk of contamination or leakages. It also makes it easier to clean the unit. 

The position of the fans ensures that there is positive pressure in the clean side. That way, potential leakages inside the unit will move from clean to unclean air, and not the other way around. In other words, there is positive pressure in the supply air, and negative pressure in the extract air. The purpose is to avoid contamination and spreading of unwanted particles, and also to ensure that the laboratory is clean and the work environment safe. 

VPM Cleanroom meets the requirements and standards of the authorities with regards to clearly separated air in ventilation of laboratories and clinically clean environments. 

High level heat recovery

Traditionally, run-around heat exchangers have been used for heat recovery in ventilation of cleanrooms. Experience shows that run-around heat exchangers are 40-50 % efficient. In order for traditional units with run-around heat exchangers to meet the regulations by Ecodesign regarding heat recovery, run-around exchanger modules are now combined in series. Regulations require heat recovery of 63% in 2016 and 68% in 2018.

The new ground-breaking and patented VPM Cleanroom solution, which prevents the extract air from getting in contact with the supply air, brings the effect close to 100 %. 

Space-saving solution

The patented technology used for VPM Cleanrooms means that the unit requires less space than conventional units. This reduces expenditure on expensive square feet compared to other similar units. 

Solutions using conventional units require more space in order to meet current legislation for Ecodesign. European legislation prescribes heat recovery of 63% in 2016 and 68% in 2018.  

Since conventional units typically have a heat recovery level of 40 - 50%, it is necessary to combine several modules in order to meet the regulations. A conventional solution therefore means a bigger unit, a larger machine room and higher building costs. 

With Nilan’s VPM Cleanroom solution you will save on building costs for the machine room.

Dimensions (W x D x H) 2375 x 1016 x 1627 mm
Weight 520 kg
Plate type casing Aluzinc steel plate
Fan type Low-energy EC-ventilators with B-wheel
Filter class Standard bagfilter ISO ePM10 >60% (M5) extract air and ISO ePM1 50% (F7) fresh air
Duct connections 400 x 400 mm
Power supply 3 x 400V + N, 50 Hz
Tightness class DS/EN 1886 L1
Compressor Maneurop type: MTZ (fixed speed) / VTZ (variable speed) - depending on configuration
Refrigerant cooling heatpipe R 744 / 2,8 kg
Refrigerant cooling circuit R 407 C / 2,95 kg
Condenser/evaporator (HxW) 525 x 462 mm
Condensation capacity 5,5 l/h (25°C / 70% RH, nominal airflow)
Condensate drain PVC Ø 32 x 1,5 mm




Max Pa capacity of standard unit, Pt,ext as a function of qv, with regard to SFP-values.

SFP-values according to EN13414-7 for a standard unit with ISO ePM10 >60% (M5) & ISO ePM1 50% (F7) filters an no heating element.

* Airflow speed above evaporator is measured at meters per second.

Attention! The SFP values are measured and stated as a total value for both fans.

COP (air/air)

Heat effect factor COP [-] supply air as function of outdoor temperature [°C] and volume flow qv [m3/h].

According to EN14511, extract air = 21 °C.

Heat effect (supply air)

Heat effect Qc [W] as a function of qv 2,400 m3/h and outdoor air temperature [°C].


Cooling effect

Supply air temperature [°C] as a function of outdoor air temperature [°C] and volume flow qv 2,400 m3/h balanced flow.


Sound data

Sound data for qV = 2,400 m3/h and Pt, ext = 250 Pa according to EN 9614-2 for surfaces and EN 5136 for ducts.

Sound output level LWA drops with falling air volume and falling back pressure.

Sound output level LpA at a given distance will depend on acoustic conditions in the place of installation.

1. Fresh air
2. Supply air
3. Extract air
4. Discharge air

The CTS602 control system is an advanced control system with many settings options. The control system is supplied with factory default settings that can be adapted to the operational requirements in order to achieve best possible operation and utilisation of the unit.

The HMI Touch panel provides an overview of the current operation of the unit, and the structure of its menu makes it easy to navigate for both user and installer. There is an option for selecting between 2 front page images for the main screen.

External communication

The CTS602i control unit communicates by default with Modbus RTU RS485 communication. A CTS system using this form of communication can easily be connected to the unit.

Functions overview   + Standard
- Accessories
Alarms Description of errors indicated with alarms. Alarm log displaying the latest 16 alarms. +
Joint alarm The CTS602 control system has an output signal that is activated in the case of an alarm. It can be connected to, for example, external automation.  
Filter monitor Filter alarm with timer that can be set to 30/90/180/360 days. +
Data display An overview of the current operation with regards to temperatures, fan speed level etc. +
Week program The CTS602 control system has 3 week programs that can be set individually (the default setting is “off”). +
Humidity control Enables a higher or lower degree of ventilation at a high/low level of humidity. -
Air quality Enables you to adjust the degree of ventilation depending on the CO2 level in the air. -
Winter low You can prevent a low level of humidity in the dwelling by activating low ventilation at low outdoor temperatures. +
Temperature regulation Enables you to control the operation of the unit in accordance with the room temperature. +
Summer/winter mode You can set the unit to operate in summer or winter mode.  
Language You can choose from more than 10 languages in the control panel. +
User levels The menu in the control panel is divided into 3 user levels: User/Installer/Factory. +
User selection 1 Enables you to override the operating mode via an external potential free signal. +
Electrical after-heating element An electrical after-heating element allows you to control the supply air temperature. In this way the unit can help heat the dwelling. -
Water after-heating element A water after-heating element allows you to control the supply air temperature. In this way the unit can help heat the dwelling. -
Frost protection In order to protect a potential water after-heating element against frost damage, the unit will stop and display an alarm if the temperature in the water after-heating element becomes too low. -
Air exchange Stepless setting of four fan speed levels. The supply air and the extract air can be set individually. +
De-icing Based on temperature, this automatic function de-ices the counterflow heat exchanger if ice has formed within it. +
Room low Safety function that will cause the ventilation unit to stop if the heating system for the dwelling fails. This will prevent the unit from cooling the dwelling even further. +
External heating The ventilation unit can control an external heat supply in accordance with the current room temperature. +
External fire automation system You can connect the ventilation unit to an external fire automation system or to a fire thermostat. This will signal to the unit whether to stop or continue operation. +
Integral fire automation system The ventilation unit is available with an integral fire automation system that can control fire and smoke dampers. -
Pressure control regulator You can install a pressure sustaining regulator on the side of both the extract air and the supply air. -
Delayed start-up You can activate a delayed start-up of the fans if you install, for instance, a shut-off damper. +
Restore settings You can save the current settings and subsequently restore them if, for instance, the user has altered the settings on the unit. You can also reinstall the default settings. +
Manual operation Different functions can be tested manually. +
Energy saving function You can activate a power saving function of the operation. +
Modbus  You can set the Modbus address of the unit. The default setting is 30. +
Data logging It is possible to log the operational data of the unit every 1 - 120 min. Alarms are logged when they occur. +
Control panel You can choose from 2 different images for the main screen. +

You can find further information about all the functions in the Software and Installation instructions for the unit.


Nilan CTS 6000 enables you to control and monitor Nilan commercial ventilation units online via a computer. You can access your units from anywhere in the world. By using a weekly or annual program, the unit can be set to operate automatically with regards to e.g. operating times, room temperatures, fan speed levels and alarms. 

The CTS 6000 enables you to monitor the operating mode of the unit closely. Whoever it concerns will automatically be notified via email about all types of operational disruptions, alarms, and maintenance notifications. Operational disruptions can then quickly be dealt with and, at the same time, you will safely know when to carry out maintenance and when to plan services. 

• Online program for controlling and monitoring Nilan’s commercial ventilation units
• Controlling and monitoring unit via computer
• Automatic control via weekly or annual program
• Setting temperature control, night cooling, pressure limits, alarms, fan speed level etc.
• Historical curves for temperature, air volume, heating, and cooling requirements
• Trend curves displaying current operation of the unit
• Automatic alarm notifications via email regarding operating mode, errors and maintenance
• Connection to room thermostats and frequency converters
• Adapting user interface to different user levels

• You can control and monitor your units from anywhere in the world
• A weekly or annual program ensures detailed regulation of the indoor climate to meet the requirements of the individual building
• The automatic and intelligent control system ensures optimised operation
• Historical graphs enable you to optimise operation and the indoor climate
• Speedy diagnosis of potential operational disruptions or errors means that they can be dealt with quickly
• Better opportunity to provide remote support and therefore also to plan services
• User friendly control panel where the user interface can be adjusted according to personal preferences

You can purchase a LON/Modbus card so you can connect the unit to an external CTS system that communicates LON or Modbus.

ATTENTION! Leave plenty of free space in front of the unit. When positioning the unit, you should always consider future service and maintenance. You must be able to replace filters easily as well as fans and other components. You must leave enough space so you can clean the unit easily. When cleaning the unit, water may escape the condensate drain.
Therefore, there has to be enough space to install water traps on the condensate drains. You should also leave space for potentially installing shut-off taps on the drains.

ATTENTION! The unit must be level to enable proper drainage from the condensate trays.

Recommended service distance: 1350 mm