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ProCASA Designer W3 xs Learn more

ProCASA Designer tool for system configuration definition.

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Functional Diagram (DWG) W3 xs Learn more

System functional diagram, functional description, Connection and Configuration. Use ProCASA Designer to configure functional diagram layer visibility.

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Functional Diagram (PDF) W3 xs pdf
Installation, commissioning and maintenance instruction W3 xs pdf
Instructions for use W3 xs pdf
Modbus register definition W3 xs Learn more

Modbus register addesses and info

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Declaration of conformity (Air handling unit) W3 xs pdf
Declaration of conformity (Cooker Hood) W3 xs pdf

Energy calculator

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Project
Customer
Designed by
Location
A

Default values

Supply air
Extract air
Air flow
Duct pressure
Cooker hood airflow
Learn more

Airflow can either be extracted from a seperate roof fan, or via by-pass from the AHU (selected models). In both cases without heat recovery.

usage time per day
Indoor temperature 21°C
Minimum supply air temperature (+10°C…+21°C)

*) Additional accessories may be needed

Eco-Design requirements
SEC class:
A
SEC cold / average / warm climates
 
-72.6 -36 -12.5 / kWh/a.m2
Max airflow rate
288 m3/h
Sound power level:
39 dB(A)
This unit can be equipped with:
Learn more

Central = DCV with one sensor
Local = DCV with more than one


 
Fan power and energy use EN13141-7
Supply air 31 W
Extract air 31 W
SPI 0.34 W / (m³/h)
SFP 1.23 kW / (m³/s) Learn more

Measurements made according to EN 13141-7.

Annual energy use of fans 539 kWh
 
Energy used to heat the air EN13141-7
Preheating 243 kWh
Reheating to 17 °C 75 kWh 164W peak load
Heating the supply air to 21 °C 1263 kWh Learn more

Heating the supply air is energy consumption consumed when supply air is heated to +21°C degrees.

Heating the infiltraded air to 21 °C 153 kWh Learn more

Warming of infiltrated air is energy consumption consumed when leakage air (outdoor air coming inside from cracks etc.) is heated to +21°C

Energy used to heat up ventilated air to 21°C 1733 kWh
Energy used without heat recovery 7824 kWh
Annual energy efficiency for room (21°C) 78 % Learn more

The part of the annual energy that the unit recovers up to room temperature +21°C

 
Heating the infiltraded air to 17 °C 136 kWh
Energy used to heat up ventilated air to 17 °C 318 kWh
Annual energy efficiency for AHU (17 °C) 96 % Learn more

The part of the annual energy that the unit recovers up to selected supply air temperature

 
Temperature efficiency of heat exchanger 81 % Learn more

Heat exchanger efficiency according to SFS-EN308

Temperature efficiency of air handling unit 82 % Learn more

SFS-EN13141-7 (including fans)

Acoustic data
Octave band (Hz) 63, LW 125, LW 250, LW 500, LW 1k, LW 2k, LW 4k, LW 8k, LW Lwa
Sound emmited to: dB dB dB dB dB dB dB dB dB(A)
supply air duct 73 73 66 60 56 52 48 43 64
extract air duct 61 56 53 49 38 35 27 24 50
outdoor air duct 63 59 55 49 39 35 26 23 51
exhaust air duct 74 71 65 58 53 50 46 41 62
kitchen bypass duct 75 59 52 46 43 36 28 24 52
surroundings 53 49 44 32 25 15 15 13 38
 
surroundings at -4dB sound attentuation Lpa, dB(A) 34

Finnish national regulations

E -value calculation
Energy form factor
1.7
Efficiency
97 %
Efficiency
90 %

Finnish national regulations

AHU temperature efficiency 1:1 79 % Learn more

Calculations are done according Finnish national building regulations part D3, D5:2012 and annex 122 by The Ministry of Environment

Defrost start limit 3.2 °C
Annual efficiency of the exhaust air 72 %
 
Preheating 412 kWh
Reheating to 127 kWh
Heating the supply air to 2459 kWh
Heating the infiltraded air to 299 kWh
Energy used to heat up ventilated air to 21°C 3297 kWh