Air Star Comfort 20 / 30 - Air Star AB

Air Star Comfort 20/30 

Fresh air with HEAT RECOVERY 

Air Star Comfort 20 / 30 

User Manual

Contents Air Star Comfort 20/30 

Picking list 3 

Technical data 3 

Comfort 20 3 

Comfort 30 3 

Use 4-5 

Safety precautions 4 

Comfort 20/30 4 

Opening and closing front door 4 

Setting air change rate 5 

Setting temperature 5 

LEDs 5 

Assembly 6-8 

Location of ventilator Comfort 20/30 6 

Equipment & tools 6 

Components 6 

Safety precautions 7 

Fixed installation 7 

Work sequence for assembly directly on wall 7 

Work sequence for assembly recessed in wall 8 

Maintenance 9-10 

Opening ventilation unit 10 

Removing and installing ventilator 10 

Cleaning the ventilator 10 

Replacing the filter 10 

Assembly drawing 11 

Warranty & complaints 12 

User Manual 2 Version 1.6

Picking list Air Star Comfort 20/30 

1 x Air Star Comfort 20/30 with 1.4 m 

power cable. 

1 x Spiro pipe, ø 100 mm, L = 200 mm 

1 x door opener 

1 x edge strip 

2 x supply air filters 

2 x exhaust air filters 

(Not pictured) 

Technical data 

Comfort 20 Comfort 30 

Air change rate m 3 : 16-32 m 3 

Air change rate l/s: 4.44-8.89 l/s 

Rated power: 

825 W 

Mains connection: 230-240 V 

Fans (run alternately): 10-25 W 

Heating element: 0-800 W 

Air change rate m 3 : 20-48 m 3 

Air change rate l/s: 5.56-13.33 l/s 

Rated power: 

830 W 

Mains connection: 230-240 V 

Fans (run alternately): 10-30 W 

Heating element: 0-800 W 


Use 


Safety precautions 

• Be sure to unplug the power cord to the ventilator before you handle it. 

• Remember that the electrical coil and heat exchanger may be hot after use. 

• Always wait 15 minutes therefore after shutdown before you open the ventilator. 

Ventilator Comfort 20/30 

1 

2 3 

1. Holes for door opening 

2. Communication window 

3. Exhaust air duct 

4. Supply air duct 

4 

1 

Opening and closing front door 

Use the supplied door opener to open the ventilator, push it down in the hole (1) for the door 

opening. To turn off the ventilator properly, press until you hear a click. Make sure the power 

cord is positioned in the slot at the bottom of the door and that it is not pinched when the 

door is closed. 

Användarhandbok User Manual 4 4 Version 1.6 1.5

Use 


Setting air change rate 

Adjust the air change rate as required using the top control. The scale above 

the control is adjusted to suit the area the room unit is intended for. The 

minimum value for the scale corresponds to an air change rate of 16 m 3 /h for 

Comfort 20, and 20 m 3 /h for Comfort 30. The maximum value corresponds to 

an air change rate of 32 m 3 /h for Comfort 20, and 48 m 3 /h for Comfort 30. You 

can use the remote control (option) to make the air change settings. 

Note: Do you have problems with radon or allergies? If so, contact a radon ad 

viser who can provide information on the degree of ventilation you need. 

Setting temperature 

To set the temperature you need a thermometer. Place the thermometer 

in an arbitrary place in the room. Regulate the temperature on the ventilator 

using the control. Fine-tune for about 1-2 days until the temperature is 

reached. 

Note: In a room that is > 10 m 2 the unit alone cannot maintain 20 0 C during the winter 

months. 

You can use the remote control (option) to make the temperature settings. The minimum 

value for the scale corresponds to about 10 0 C and the maximum value is about 26 0 C. 

LEDs 

At the top of the ventilator there is a black communication window with a LED behind it that 

lights to indicate various activities and events: 

• A green glowing LED indicates that the heating element is turned on. 

• A green flashing LED means communication with the remote control. 

• A red flashing LED means you are updating a setting on the unit. 

Användarhandbok User Manual 55 Version 1.61.5

Assembly 


Air Star Comfort 20/30 can be installed in two ways. Recessed into the wall is the preferred method 

in environments with high demands on aesthetics, and where the wall structure requires this. Directly 

on the inside of the interior wall provides the simplest installation and has the same function. Page 11 

features a drawing of the outer box with all dimensions. The dimensions of the outer box are 290 x 340 

mm; add 10-15 mm for the insulation when mounting the Comfort 20/30 recessed into the wall. 

Location of ventilator Comfort 20/30 

Before mounting the unit, determine the location. Please note the following points before starting the 

installation: 

• Make sure that there is nothing on the outside of the building where the ventilation grill is to be 

installed. 

• Take the wall studs into account. 

• Locate the power lines. 

• Do not place the ventilator so that it ends up behind furniture or anything that reduces the air 

change rate. 

• For high placement of the ventilator, the top of the outer box should be at least 10 cm from the 

ceiling, bearing in mind the unit draws in air from above and in order to ensure access to open 

the door with the door opener. 

• Remember that in order to open the door properly, you need to make sure you have at least a 

10 cm gap to the nearest wall. 

• The length of the Spiro pipe must be no more than 1 metre. 

• Try placing the ventilator under or at the side of a window. 

• The bottom edge of the outer box should be 20-30 cm above the floor. 

• Make sure the power cord is long enough to lift the ventilator from the outer box. 

• Mount high up in a shower room and basement. 

Equipment & tools 

Stud finder 

Folding rule 

Spirit level 

Driller 

Drill Ø12-15mm 

Tiger saw 

Hammer 

Respiratory protection 

Vacuum cleaner 

Components 

Outer box 

Spiro pipe 

Ventilation unit 

Heat exchanger cassette 


Assembly 



• The unit must not be placed under an electric socket! 

• The ventilator must not be covered. Overheating risk! 

• Do not place the ventilation unit behind furniture or in any other manner that reduces 

circulation throughout the room. 

• Wear respiratory protection when you install the ventilator recessed in concrete walls. 

• A maximum of three units should be connected to a single fuse block 10A. 

• It is recommended not to add any additional load to the same fuse group. 

Fixed installation 

• For fixed installation (no plug), an all-pole switch must be mounted before the unit 

by a qualified electrician. 

Warning! 

• In order to avoid overheating, do not cover the heater. 

• The heater must not be located immediately bellow a socket outlet. 

Work sequence for assembly directly on wall 

1. Place the outer box against the wall and plot the circular bushing on the outer box’s back piece, 

adjusting the hole to the sleeve diameter and depth (sleeve dimensions Ø 123 mm and 41 mm 

deep). Drill the remainder of the holes with Ø 100 mm + 10-15 mm of insulation. 

2. Drill and cut the opening for the wall bushing. Remember that the Spiro pipe must not be longer 

than 1 m horizontally. 

3. Measure and cut the pipe to the correct length. Insert and secure the Spiro pipe. The black rubber 

seal on the pipe must be facing the outer box sleeve. 

4. Installation of the outer box. Start by drilling four attachment holes in the box’s back piece. Use a 

screw (and plug, if needed) suited for the wall. 

Use vibration damping material between the attachment points on the box and the wall. Ensure 

that the vibration damping material is not compressed too much and loses its function. (Risk of 

structure-borne sound in the wall). Push the Spiro pipe into the outer box sleeve. 

5. Clean the inside of the outer box before putting the ventilator in place. Carefully slide the unit 

so that the ventilator sleeve goes into the slot on the outer box sleeve. 

6. Connect the plug to the wall socket. 

Comfort 20/30 is now installed and ready for operation. Go to chapter: Use for setting the unit. 


Assembly 


Work sequence for assembly recessed in wall 

1. The ventilation unit must be mounted horizontally. Mark the dimensions on the wall. 

Outer box dimensions are width: 290 and height: 340 mm. Add 10-15 mm for insulation. 

2. Drill a hole with a diameter 12-15 mm in each corner. Check the wall studs and any 

wires. Stagger the placement if necessary. 

3. Cut with tiger saw. Deepen the recess to a depth suited to the wall structure. The outer 

box depth is 204 mm. The maximum recommended recess depth is 180 mm. 

4. Important! Calculate the holes for the outer box so that there is room for at least 30 mm 

of insulation between the exterior wall and the back of the outer box. 

5. Separate the ventilator from the outer box. Now slide the outer box into the opening and 

align with a spirit level. 

6. Mark the location of the Spiro pipe on the remaining exterior wall using a circular bushing 

on the outer box’s back piece. Adapt the holes to suit the sleeve diameter and depth. 

(Sleeve dimensions Ø 123 mm and 41 mm deep). The remainder of the holes are drilled 

with Ø 100 mm + 10-15 mm of insulation around the Spiro pipe. 

7. Now remove the outer box and drill the holes for the Spiro pipe. 

8. Measure and cut the Spiro pipe to the correct length. Insert and fix the pipe in the proper 

position, the black rubber seal on the pipe should be facing the outer box sleeve. Finish by 

insulating around the pipe. 

9. Installation of the outer box can be made with screw attachment or by fixing with sealing 

foam. 

10. Slide in the outer box and press the Spiro tube into the outer box sleeve. Make sure the 

outer box is horizontal and vertical. Attach using a wooden wedge. At the screw attach 

ments, drill attachment holes in the outer box at the locations corresponding to the wall 

structure. 

11. Screw or join the outer box to the wall so that it is secure. The screw attachment is always 

used with vibration damping material between the outer box and the wall. Make sure 

that the vibration damping material is not compressed too much and loses its function. 

(Risk of structure-borne sound in the wall). 

12. Insulate around the outer box, and finish by fitting the cover frame (option). Before the 

assembly of the exterior wall grill, check that insulation has been placed around the pipe. 

13. Clean the inside of the outer box before putting the ventilator in place. Carefully slide the 

unit so that the ventilator sleeve goes into the slot on the outer box sleeve. Connect the 

plug to the wall socket. 

Comfort 20/30 is now installed and ready for operation. Go to chapter: Use for 

setting the unit. 


Maintenance 


7 

1 

Ventilator 

2 

3 

4 

5 

1. Motor compartment 

2. Front cover 

3. Control for air change rate 

4. Control for temperature 

5. Connection for door cable 

6. Outlet for power cable 

7. Exhaust air duct 

8. Supply air duct 

8 

6 


• Before cleaning the ventilator, ensure that it is not connected to the mains. 

• The ventilator has a heating element. Wait about 15 minutes after the ventilator has 

been disconnected before starting to clean. 

• Be sure to wear respiratory protection for protection against dust. 

• The ventilator must not be rinsed with water. 

Warning! 

• If the power cord is damaged, it must be replaced by the manufacturer, its service 

agent or similarly qualified persons in order to avoid any hazards. 


Maintenance 


Opening the ventilation unit 

Unplug the power cord. When you need to open the ventilation unit, it is recommended to grip the top of 

the front cover (2) and pull it towards you. There is a joint at the bottom edge that secures the front door 

so that it cannot be removed. To close, just lift the cover and press it to its original position. 

Removing and installing the ventilator 

Open the ventilation unit’s front door as instructed on page. 4. Now grip the top of the front cover (2) and 

gently pull it out. 

Cleaning the ventilator 

Open the door of the Comfort 20/30 by pushing at the same time as inserting the door opener into the 

hole at the top of the door. Carefully disconnect the cable connection from the door. Open the cover on 

the ventilator by gripping the top and pulling towards you. Remove the heat exchanger cassette. Vacuum 

or dust inside the ventilator, cover and the heat exchanger cassette. 

For thorough cleaning, you may want to remove the unit from the outer box. Before refitting the ventilator 

in the outer box, this should also be cleaned. 

Replacing the filter 

1. 2. 3. 4. 

To obtain the best efficiency, the supply air and exhaust air filters need to be replaced regularly, at least 

twice a year. If the units are placed in a very dirty environment, the filters must be replaced more often. 

When the front cover on the ventilation unit is opened, for the Comfort models this is done by 

inserting the accompanying red needles into the small hole on the left side, on top of the ventilator cover. 

1. An exhaust air filter is located on the top edge of the front. 

2. Remove it from the Velcro strip and replace it with a new one. 

3. Grip the top edge of the ventilator, fold down the front of the ventilation unit and remove the heat exchanger. 

4. Lift the cover and grill to access the supply air filter. 

It is a good idea to use a vacuum cleaner and vacuum the corrugated board in the heat exchanger, and vacuum 

and wipe the exposed parts of the unit with a damp cloth. This increases the unit’s life span considerably! 

Note: Make sure the cover on the heat exchanger cassette is facing upwards when refitting in the ventilation unit. 

• Standard filter BG/160-65, not cleanable. 

• Dust filter EG/150-65, not cleanable. 

• Pollen filter EF/300-45, not cleanable. (Only available as option). 


Assembly drawing 


For the holes, add 10-15 mm to the external dimensions for insulation. 

297 

340 

Ø 122,5 

41 

204 

204 

81,5 

290 


Warranty & complaints 


Warranty 

Air Star gives a 5 year factory warranty on its products to private individuals. 

For businesses and public institutions, a two-year warranty applies. 

For the warranty to be valid, maintenance must be carried out, i.e. changing 

the filter and cleaning performed in compliance with the instructions in the 

manual. If maintenance is neglected or filters have been replaced with models 

that are not genuine parts, the warranty is void. 

A receipt or invoice must always be presented in connection with warranty 

matters. 

Complaints 

In order to claim that goods are defective (concerning transportation damage, 

see below), the business customer must file a complaint with Air Star AB immediately, 

although no later than 30 days from the invoice date and return the 

items in some way. A consumer (individual) must report the defect within a 

reasonable time after the defect has been identified. 

Business customers must check all goods on arrival to verify that the goods 

are flawless. If the complaint is received after 10 days, Air Star AB reserves 

the right in relation to the business customer to determine if the defect is to 

be corrected. In relation to a consumer (individual), Air Star AB will correct the 

defect at its own expense, if this can be done without unreasonable cost or inconvenience 

to Air Star AB. In all other matters we refer you to the Consumer 

Purchases Act. See also below regarding responsibility for defects. 

For claims, the customer must contact Air Star AB’s customer service by 

telephone +46 60-15 39 10, e-mail to info@airstar.se, stating order and invoice 

number and the reason for the complaint. A consumer (individual) should 

use a prepaid way bill provided by Air Star AB for the return of the goods. The 

goods should be submitted within 14 days from the receipt of the way bill. 

When returning the goods, the invoice and order slip along with a description 

of the defect, preferably in detail, must accompany the goods. Returns must 

be returned in their original packaging, well packed in packaging approved 

by the Post Office (e.g. brown corrugated cardboard). Any transport damage 

resulting from inadequate packaging will be charged to the customer. Air Star 

AB reserves the right to inspect the goods and charge a testing fee of SEK 

350 plus VAT if the goods are shown not to be defective and the claim is not 

accepted. 

Friskluft med VÄRMEÅTERVINNING 

Air Star AB 

Montörvägen 10, SE-853 50 Sundsvall sweden 

Tel 060-15 39 10 fax 060-15 39 11 

www.airstar.se 

12

Air Star Comfort 20 / 30 - Air Star AB

Create successful ePaper yourself

Delete template?

Save as template?