Compact P

Specifications & Technical Data

The Compact P is a combined ventilation and heating system that provides your house with ventilation, heat recovery and production of domestic hot water (DHW).

The Compact P ensures a daily air exchange with the removal of dust particles, smells and excess humidity in exchange for a pleasant and healthy indoor climate. When it is hotter inside than outside the house, a built-in bypass makes sure to let cool air directly into the house.If you want a total solution that covers central heating of the house as well, you should choose a Compact P solution with an outdoor air or ground source heat pump. Compact P is, as only one out of a few compact systems in the world, passive house certified due to its high efficiency. The certification means that the Compact P is certified for passive housing without any additional documentation ever being needed. 



Consumer profile, water heater L (large)
Energy efficiency class A
Energy efficiency for water heating – average climate 94 %
Annual electricity consumption – average climate 1081 kWh/annum
Temperature settings on the thermostat 10 – 65 °C
Sound power level LWA 57 dB(A)
The water heater can function outside peak load periods (Smart-grid) No
Guidelines for assembly, installation and maintenance See installation instructions
Energy efficiency for water heating – cold climate 94 %
Energy efficiency for water heating – warm climate 94 %
Annual electricity production – cold climate 1081 kWh/annum
Annual electricity consumption – warm climate 1081 kWh/annum


Compact P is an energy-efficient total indoor climate solution for all types of low-energy buildings, single-family homes, flats and small office areas in commercial leases with a ventilation requirement of up to 300 m3/h.

Compact P recovers the energy from the extracted air using a highly efficient counter flow heat exchanger. The remaining energy that is not utilised by the counter flow heat exchanger is used by the heat pump to produce hot water, and to further heat the supply air.

The heat pump has a reversible cooling circuit, which means that, in the summer, the unit can cool the supply air by up to 10 °C. Due to the low air exchange, the cooling does not function as an air conditioning system. On cooling, the supply air is dehumidified, which gives a more pleasant indoor climate than is possible with an ordinary ventilation unit without a heat pump.

Compact P is also offered in a Polar version with a built-in preheating element to frost proof the counterflow heat exchanger.

Dimensions (WxDxH) 900 x 610 x 2,065 mm
Weight 202 kg
Plate type casing Aluzinc steel plate, white powder coating RAL9016
Heat exchanger type Polystyrene counterflow heat exchanger
Fan type EC, constant rotation
Filter class Standard G4
Duct connections Ø 160 mm
Condensate drain PVC, Ø 20×1.5 mm
External leakage < 1.4% (*1)
Internal leakage < 1.1% (*2)
Supply voltage 230 V (±10 %), 50/60 HZ
Max. input/power 2.2 kW/ 9.6 A (*3) // 3.4 kW/14.8 A (*4)
Tightness class IP31
Standby power 3 W
Ambient temperature -20/+40 °C

Ecodesign/ERP data

Fan data
Motordata (optimalt driftspunkt)
* 1    At ± 250 Pa and 265 m3/h according EN 308/EN 13141-7.
* 2    At ± 100 Pa and 265 m3/h according EN 308/EN 13141-7.
* 3    Input without heating element (accessory).
* 4    Input Compact Polar
1: Fresh air
2: Supply air
3: Extract air
4: Discharge air


The Compact P is controlled by its CTS 700 touch panel, which provides a wide range of functions, including menu-controlled operation, week programmes, time-controlled filter monitor, fan speed adjustment, temperature control, error messages etc. The CTS 700’s factory settings are default settings that can be adapted to operating needs and requirements, to achieve optimum operation and utilisation of the system. Operating instructions for CTS 700 can be found in the separate user guide supplied with the system.
Functional overview CTS 700 control panel
Functional overview  +Standard -Accessories
3 levels The control function is divided into 3 levels: User / Installer / Factory with various options at each level.  +
Weekly plan There is an option for you to set your own weekly programme.  +
User option 1 This allows you to override the operating mode in the main menu via an external potential-free contact or PIR sensor.  +
User option 2 This allows you to override the operating mode in the main menu via an external potential-free contact or PIR sensor. User option 2 has a higher priority than user option 1. +
User option 2 out When user option 2 is used, at the same time an output signal is given. +
Alarms The alarm list is featuring all alarms. +
Datalog Opportunity for datalog.
Filter monitor Filter monitor with timer (factory setting of 90 days). Adjustable to 30/90/180/360 days.  +
100% Bypass Bypassing the outdoor air reduces heat recovery, enabling the desired supply air temperature to be maintained spring, summer and autumn. +
Air quality Allows you to choose whether to switch humidity sensors and/or CO2 sensors on and off.  +/-
Humidity control Allows you to set a higher or lower ventilation step in the case of high/low air humidity.  +
CO2 control Allows you to set a higher or lower ventilation step in the case of a high/low CO2-level.
Air exchange Allows you to select a low ventilation step in the case of low outside temperatures and air humidity. +
Night setback A possibility to set back the ventilation and temperature a night. +
Defrost function Temperature-based automatic function for defrosting the heat exchanger. +
Frostprotection In case of failing heating system, the unit is turned off to avoid further cooling with a risk of the water heating coil frost bursting. +
Temperature control Allows you to select the temperature sensor which will control the unit.
•     TExt External room temperature sensor
•     T3 EXHAUST (extract air)
– +
Air volume Allows you to set the ventilation flow stepless from 20 to 100 %. In four steps. +
Summer/Winter operation The unit automatically changes to summer or winter operation. +
Legionella control It is possible to choose a weekday or a day during the month, where the sanitary hot water temperature reaches 65 °C, for example between 1 and 6 o´clock. +
Fire alarm This allows you to connect fire-detecting thermostats, smoke detectors and other fire alarm contacts. In case of an alarm, smoke dampers are closed and the unit stops. +
Joint alarm Outlet for joint alarm. +
Cooling Via bypass or heat pump. The heat pump has a reversible circuit, which means that the units circuit is  reversed and the unit cools, rather than heating, the supply  air. It is possible to choose whether the unit is to run a higher or highest ventilation stage during cooling. Via a weekly plan night cooling can be set up. +
External heating element •     Temperature sensor T7 is an supply air sensor
•     Integrated frost protection for external water heating element
•     Motorised valve and circulation pump control unit
External electric heating element •     Temperature sensor T7 is an supply air sensor
•     Overheating protection
External network It is possible to connect the unit to an external network. +
Reset Allows you to restore the factory settings.  +
Language Option for setting the relevant language (Danish/German/English).  +


Top Cover
To cover the ducting over the unit, Nilan offers a top cover in white-varnished aluzinc (RAL 9016).
Extra heat exchanger of 0.7 m2 in the hot water tank, which can be connected to an approximately 3 m2 solar heating system, or other heat sources.
With a CO2-sensor installed, the ventilation speed can be pre-programmed with CTS 602 to run at a higher ventilation steps when CO2 reaches high level in the extract air. CO2-level is programmable.
Pollen filter F7
A pollen filter class F7 can be fitted in the unit. The pollen filter is fitted with the G4 plate filter.
EM Box
An EM-box allows heat recovery from the air from the range hood and thereby helps to heat the supply air. The EM-box is equipped with a steel filter which efficiently cleans the range hood air of fat particles and thereby protects the system.  
Electrical heating surface
incl. regulation
When you fit an electrical heating surface, you can raise the fresh air temperature to the desired level at any time. The electrical heating surface is supplied ready to fit into the fresh air duct and, for easy fitting, the device is pre-fitted with all the required sensors.  
Water heating element incl. regulation (duct mounted)
The supply temperature can always be raised to the required level using a water heating element. The water heating element is designed to be built into the duct and must be connected to the primary heating supply. Supplied with two-way adjustment valve, temperature sensor and frost thermostat.


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