Compact P Air9

Total indoor climate solution combining the Compact P with an outdoor air heat pump, which can be connected to a central heating system.


The Compact P Air9 has the same functions, benefits and options as the Compact P but can further be used to exploit outdoor air to heat the home.

When you install a Compact P Air9, your home will become self-sufficient in sustainable energy and it will no longer be necessary to use other sources of energy, such as district heating, oil or gas, to heat your home. The Compact P Air9 is the eco-friendly choice for anyone who wishes to exploit sustainable sources of energy to heat their homes and at the same time reap the benefits in the form of lower heating bills and a good, healthy indoor climate.

The system is equipped with an outside air heat pump, Air9 Compact, which, in contrast to the system itself, is set up outside. The heat pump absorbs the energy in the outside air and coverts this energy into heat that is used to heat water in your central heating system, which is then pumped to the radiators or underfloor heating in your home.

The Compact P Air9 solution can reduce your heating bill by up to 50%. For each kW power used by the outside air heat pump, you get up to four times as much heat in return.

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.


  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.

Compact P AIR 9 has the same benefits and functions as Compact P, but also has an integrated air/water heat pump, with connection to waterborne underfloor heating or lowtemperature radiators for central heating.

The solution consists of an integrated interior section in Compact P, as well as an exterior section that is easy to connect.

AIR 9 is delivered with a reversible heat pump, which also makes the unit capable of cooling.

AIR 9 is very silent and can be placed without disturbing it surroundings. During summer, when only hot sanitary water is needed, the fan is limited, reducing the noise level. This limit occurs when the outdoor temperature exceeds 15 °C and limiting the compressors output to a maximum off 60 %. These criterias can be set individually.

Technical specifications Compact P AIR 9

Dimensions (inside part) (W x D x H) - Integrated in Compact P 550 x 300 x 1.100 mm
Weight (inside part) 55 kg
Control CTS 700
Dimensions (outside part) (W x D x H) 962 x 542 x 1.301 mm
Weight (outside part) 125 kg
Supply voltage (inside part) 400/230V 2L+ N+PE, 50Hz
PMAX (inside part) 6,1 kW
Fuse size (inside part) 16 A
Standby electricity consumption 2,5 W
Supplementary electrical heating 2 x 3 kW
Buffer tank(integrated) 50 L

Sound output level

Technical specifications Compact P AIR 9

Design pressure (central heating) 4 bar
Opening pressure safety valve (central heating) 2,5 bar
Expansion vessel (central heating) 8 Liter
Booster expansion vessels 0,5 bar G
Max. air volume 3.400 m3/h
Variable compressor 30 - 100 %
Tightness class fan IP54
Supply voltage (outside part) 400/230V 2L+ N+PE, 50Hz
PMAX (outside part) 3.300 W
Fuse size (outside part) 16 A
Rated output, (max/min) A-Pump 31/99 W
Rated output, (max/min) A-Pump 0,2/0,63 A
Condenser pressure loss (central heating) 15 kPa/0,42 l/s
Central heating connection 3/4”
Refrigerant R410A
Refrigerant filling 3,4 kg
Pressostat low pressure (on/off) 2,2/3,4 bar G
Pressostat high pressure (on/off) 42/33 bar G
Operating temperatures -22 °C → 50 °C
Central heating, flow temperature 25 °C → 45 °C
Connection dimension 1”
Heat output PH with variable compressor at 7°C/35°C, according to EN 14511:2012 (max. 5400 RPM) 8,4 kW
Heat output PH with variable compressor at 2°C/35°C, according to EN 14511:2012 (max. 5400 RPM) 6,7 kW
Heat output PH with variable compressor at -7°C/35°C, according to EN 14511:2012 (max. 5400 RPM) 5,7 kW
Heat output PH with variable compressor at -15°C/35°C, according to EN 14511:2012 (max. 5400 RPM) 4,5 kW
Heat output PH with variable compressor at 7°C/45°C, according to EN 14511:2012 (max. 5400 RPM) 7,8 kW
Heat output PH with variable compressor at -7°C/45°C, according to EN 14511:2012 (max. 5400 RPM) 5,4 kW
SCOP testet according to EN 14825:2012* 5,11
Pdesign (tout - 10°C) 5,21 kW
*SCOP (Seasonal COP) is for ”low temperature use, average climate, defined flow, reversible”
All measurements are in mm

The Compact P is controlled by its CTS 700 touch panel, which provides a wide range of functions, including menucontrolled operation, weekprogrammes, 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.

18 Connection 1”
19 Flexihose 1”
20 Shut-off valve
21 P1 circulation pump 130 mm
23 Supplementary electrical heating 2 x 3 kW
24 Temperature sensor T18 (centralvarme)
25 Flexihose 10 mm
26 Automatic control vent
27 Expansion tank 8 litre
28 Manometer
29 Safety valve 2,5 bar
31 P2 circulation pump
33 Connection 3/4”
34 Connection 3/4”
37 Feed cock
39 Shut-off valve
43 3-way valve
44 Temperature sensor T21
45 Temperature sensor T22
50 Temperature sensor evaporator
52 Temperature sensor T16
53 Temperature sensor T17

Functional overview CTS 700 control panel

Functional overview  



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).  +


Model AIR 9
Air-to-water heat pump Yes
Water-to-water heat pump No
Brine-to-water heat pump No
Low-temperature heat pump Yes
Equipped with a supplementary heater Yes
Heat pump combination heater No


Temperature control  
Model CTS700
Class 2
Contribution to seasonal space heating energy efficiency 2%


Item Symbol Value Unit   Item Symbol Value Unit
Rated heat output (*) Prated 5,21 kW   Seasonal space heating
energy efficiency
ŋs 206 %
*Declared capacity for heating for part load at indoor temperature 20 °C and outdoor temperature of Tj   Declared capacity for heating for part load at indoor temperature 20 °C and outdoor temperature of Tj
Tj = -7 °C Pdh 4,79 kW   Tj = -7 °C COPd 3,20  
Tj = +2 °C Pdh 2,88 kW   Tj = +2 °C COPd 4,95  
Tj = +7 °C Pdh 1,90 kW   Tj = +7 °C COPd 6,53  
Tj = +12 °C Pdh 2,12 kW   Tj = +12 °C COPd 9,69  
Tj = bivalent temperature Pdh 5,21 kW   Tj = bivalent temperature COPd 2,83  
Tj = operation limit temperature Pdh 0     Tj = operation limit temperature COPd 0  
For air-water-heating pumps Tj = -15 °C (if TOL < -20 °C) Pdh       For air-water-heating pumps Tj = -15 °C (if TOL < -20 °C) COPd    
Bivalent temperature Tbiv -10     For air-to-water heat pumps:
Operation limit temperature
  -22 °C
Cycling interval capacity for heating Pcych       Cycling interval efficiency      
Degradation co-efficient Cdh 0,94-0,99     Heating water operating limit
WTOL 45 °C
Power consumption in modes other than active mode   Supplementary heater
Off mode POFF 0,01     Rated heat output Psup 6 kW
Thermostat off-mode PTO 0,005            
Standby mode PSB 0,01     Type of energy input Electrical    
Crankcase heater mode PCK 0            
Other items          
Capacity control Variabel kompressor Variabel indendørs vandflow   For air-to-water heat pumps:
Rated air flow rate, outdoors
  3000 m3/h
  Variabel indendørs temperatur regulering   For water-/ brine-water heat pumps: Rated brine or water flow rate, outdoor heat exchanger     m3/h
Sound power level, outdoors LWA 46 dB          
Emissions of nitrogen oxides QHE 1464 kWh          


Data sheet


DWG drawing

3D files

If you want to convert STEP files to Revit, do the following:
Import the STEP file to Autocad, export it as a 3D DWG file and then import the file into Revit.

Installation instruction

Software manual

User Manual

Conversion to Touch display