W4.311016
Swegon reserves the right to alter specifications.
www.swegonhomesolutions.com
Installation, operation and maintenance instructions
for design engineers, installation engineers and service personnel
Contents
2
Important information ............................................. 3
1. General description ............................................... 4
1.1 Enclosure .........................................................................4
1.2 Fans .................................................................................4
1.3 Filter ................................................................................4
1.4 Heat exchanger ................................................................4
1.5 Temperature ....................................................................4
1.6 Protective safety functions ...............................................5
2. Installation ............................................................. 6
2.1 Ventilation unit’s installation site ......................................6
2.1.1 Wall mounting ..............................................................6
2.1.2 Ceiling mounting ..........................................................6
2.2 Condensate discharge ......................................................7
2.3 Ducts ...............................................................................8
2.4 Sealing around duct penetration collars ...........................8
2.5 Electric and control cables ................................................8
2.6 Bypass for kitchen ............................................................9
2.7 Installation of the Smart control panel ............................10
2.8 To connect water pipes in the Econo model ...................10
3. Commissioning .................................................... 11
3.1 To set the airflows ..........................................................11
3.1.1 Setting the fan speeds ................................................11
3.2 Smart functions .............................................................11
3.2.1 Selection of Smart functions .......................................12
3.2.2 Automatic Home/Away/Boost system ..........................12
3.2.3 Automatic humidity system .........................................12
3.2.4 Automatic air quality system .......................................12
3.2.5 Cooker hood function .................................................12
3.3 Sensor ...........................................................................13
3.4 Control functions with optional items of equipment ......13
3.5 Remote supervision (DDC) ..............................................13
3.6 Damper motors ..............................................................13
3.7 Re-heater (not Econo) ....................................................13
3.8 Anti-freeze protection ....................................................13
3.9 Restoring factory settings ...............................................13
3.10 To change the service code ..........................................14
3.11 Use ..............................................................................14
4. Service .................................................................. 14
4.1 Service reminder ............................................................14
4.2 To open the ventilation unit ...........................................14
4.3 Filters .............................................................................14
4.4 Heat exchanger ..............................................................14
4.5 Fans ...............................................................................14
4.6 Other servicing ...............................................................15
5. Alarms and troubleshooting .............................. 16
5.1 Alarms ...........................................................................16
5.2 Troubleshooting .............................................................16
6. List of components ............................................. 18
7. Technical data ...................................................... 19
7.1 Fan capacities (EN 13141-4) ...........................................19
7.1.1 W4 .............................................................................19
7.1.2 W4 Econo ...................................................................19
7.2 Outputs of the components ...........................................20
7.3 Acoustic data .................................................................20
7.4 Econo, pressure loss in water-heated air heaters .............22
7.5 Econo, sizing of the water-heated air heater ..................22
7.6 Electrical wiring diagram ................................................23
7.6.1 W4 .............................................................................23
7.6.2 Control functions with accessories ..............................24
7.6.3 Supervision (DDC) .......................................................25
7.7 Control diagram ............................................................26
7.7.1 W4 .............................................................................26
7.7.2 W4 Econo ...................................................................27
7.8 Dimensions ....................................................................28
7.9 Weights .........................................................................28
7.10 Ventilation unit codes ..................................................29
7.11 Accessories for installation ...........................................29
8. Commissioning form ........................................... 30
Warranty conditions ............................................... 31
EC Declaration of Conformity ................................ 32
Summary of Contents for CASA W4 Smart
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