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© Airflow • We reserve the right to make changes without prior notice.

What the units include can vary depending on the sales area.

OPERATING INSTRUCTIONS FOR CONTROL PANEL

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack 

of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand 

the hazards involved. 

Children shall not play with the appliance. 

Cleaning and user maintenance shall not be made by children without supervision.

4.

Week-clock control

4.1 

Week programme programming

The week programme can be used to set the desired fan speed (base fan 

speed) and supply air temperature for each hour of the day on seven days 

a week. The week programme overrides manual adjustments.
Carbon dioxide and humidity adjustment can increase fan speed but never 

decrease it below the base fan speed set in the week programme. 

Example: Monday

It is the intention to decrease fan speed to speed 2 and supply air tempera-

ture to 17 ºC between 07:00 (7 a.m.) and 16:00 (4 p.m.). After that, fan 

speed is raised to speed 4 and supply air temperature to 20 ºC. For the 

evening, fan speed is boosted to speed 6 between 19:00 and 21:00 (7 

p.m. and 9 p.m.), after which fan speed is lowered back to 4.

4.2 

Adjusting time

5.

Factory settings

Base fan speed  

=  1

Maximum fan speed 

=  8

Carbon dioxide adjustment (CO

2

) =   900 ppm CO

2

Adjustment interval 

=   10 min

Winter parameter A 

=   9 bars 

Winter parameter B 

=   3 bars

Mode of melting 

=    heat recovery cell bypass

Maintenance reminder 

=   4 months

Cell bypass 

=   12 °C

Cascade adjustment 

=   not in use

Speed steps: 

1.  

=  31 % 

2.  

=  42 % 

3.  

=  47 % 

4.  

=  54 % 

5.  

=  59 %

6. 

=  66 % 

7.  

=  72 % 

8.  

=  100 %

Humidity level (Rh level) setting 

=   automatic

Switch type  

=   fi replace switch

Extraheater type 

=  electric radiator

3.26  

Adjusting fan on the supply air side

DC fan, supply
100%

The desired adjustment value for the 

supply air fan is selected with the + 

and – buttons. The rotation speed of 

the supply air fan can be decreased 

by decreasing the percentage.

3.27 

Adjusting fan on the extract air side

DC fan, exhaust
100%

The desired adjustment value for the 

extract air fan is selected with the + 

and – buttons.
The rotation speed of the extract air fan 

can be decreased by decreasing the 

percentage.

Move the cursor with the arrow keys and 

change values with the + and – buttons. 

Note that to exit and save when the 

programming is fi nished, move the cursor 

below the word Exit and press + or –.
Changes in fan speed (Sp.) and supply 

air temperature (Temp.) are only made 

for the hours desired; in other cases, use 

N (no change to previous).

Monday (d = 1), 07:00 (h = 7),

fan speed 2 (sp = 2), supply air 

temperature 17 °C (tmp =17). 
Move the cursor to the following hour.

Monday (d = 1), 16:00 (h = 16),

fan speed 4 (sp = 4), supply air 

temperature 20 °C (tmp = 20). 
Move the cursor to the following hour. 

Monday (d = 1), 19:00 (h = 19),

 

fan speed 6 (sp = 6), supply air 

temperature no change (tmp = N). 
Move the cursor to the following hour.

Monday (d = 1), 21:00 (h = 21),

 

fan speed 4 (sp = 4), supply air 

temperature no change (tmp = N). 
Move the cursor to the following hour.

3.28 

Fan speed level adjustment

Speed 1 level
15%

The desired fan speed level is adjusted 

from the menu. Adjustment range is 

0–100%. However, fan speeds limit 

the adjustment range as follows:

If for instance speed 3 is 30%, speed 2 cannot be increased to more 

than 29% and speed 4 cannot be decreased below 31%.
The fan stops when the setpoint is 14% or lower. The adjustment is made 

with the + and – buttons. There are 8 displays, one for each fan step.

3.29 

Moving to Operating menu

To Main menu
press + and –

To move back to the Operating menu, 

press the + and – buttons simultaneous-

ly.

Similar changes have to be made separately for each day. Finally, exit the 

programming mode by selecting Exit. If you wish, you can erase the week 

programme as indicated in Section 3.6. You can then start programming 

from the start. You can see the settings programmed by choosing a day and 

by scrolling the hours with the + or – button.

Move the cursor with the arrow keys and 

change values with the + and – buttons. 

Exit and save when the programming is 

fi nished.

Monday (D=1),

 hours 15 (H=15), minu-

tes (M=30)
Time is maintained even though there is 

a power failure. (See Section 1.1, fi gure 

items 5 and 6).

d   hr   sp    tmp   

Exit

d   hr   sp    tmp 

17 

Exit

d   hr   sp    tmp 

16 

20  Exit

d   hr   sp    tmp 

19 

Exit

d   hr   sp    tmp 

21 

Exit

Cursor 

d  Day 1…7

 

1 = Monday, 2 = Tuesday etc.

h  Hour 0…23

sp.  Fan speed 1…8

Temp Supply air temperature

 

10…30°C

Exit  Save the setting and exit

N  No change to previous hour setting

Cursor 

D  Day 1…7

 

1 = Monday, 2 = Tuesday etc.

H  Hour, 0…23

M  Minutes, 0…60

Exit  Save the setting and exit

STARTING POINT

day  hour   min

15 

30  Exit

DV145SE

Summary of Contents for DUPLEXVENT DV145SE

Page 1: ...g maintenance and technical instructions Electrical connection 230 V 50 Hz 11 9 A plug Degree of protection provided by enclosures IP34 Fans Extract air 150 dm3 s 100 Pa direct current DC Supply air 140 dm3 s 100 Pa Heat recovery Cross counter flow heat recovery cell 80 Heat recovery bypass Automatic Electric post heating unit standard 900 W 3 9 A Additional heater 1500 W 6 5 A Fans Supply air G4 a...

Page 2: ...ighest measuring result 1 to 2 carbon dioxide sensors can be connected as options to the DUPLEXVENT DV145SE unit The adjustment is switched on off and if needed the setpoint 500 2000 ppm is set at the control panel The factory setting is 900 ppm The recommended maximum carbon dioxide content in good indoor air is circa 1 000 ppm During control the control panel can be used to raise fan speed to th...

Page 3: ...months The maintenance reminder symbol is acknowledged at the main display of the control panel See the operating instructions for control panel Section 3 1 The interval can be set between 1 and 15 months at the control panel Fireplace switch function booster Fireplace switch function See the operating instructions for control panel Section 3 12 The fireplace switch stops the extract air fan for 1...

Page 4: ... can chan ge setpoints for the ventilation unit 2 3 Week clock control Week program on Week clock control can be switched on with the button and off with the button Week clock control is on when the week clock control symbol is in the main display In week clock control the base fan speed and supply air temperature of the unit are adjusted in accordance with the programme as described in Section 4 ...

Page 5: ...electric radiator is selected with the and buttons depending on the type of post heating radiator the unit is equipped with Note Choosing the wrong type of post heating may cause a faulty post heating function 3 18 Choosing additional heater for unit Extraheater type Electric rad An electric or MLV radiator is chosen according to ventilation unit type with the and buttons This unit can be used onl...

Page 6: ...ir fan can be decreased by decreasing the percentage Move the cursor with the arrow keys and change values with the and buttons Note that to exit and save when the programming is finished move the cursor below the word Exit and press or Changes in fan speed Sp and supply air temperature Temp are only made for the hours desired in other cases use N no change to previous Monday d 1 07 00 h 7 fan spe...

Page 7: ...od operation of the ventilation unit and the best filtering result The replacement interval of filters depends on dust content in ambient air It is recommended to replace fans in spring and autumn but at least once a year MAINTENANCE INSTRUCTIONS Filters Heat recovery cell Heat recovery cell When you replace the filters you are also advised to check the cleanliness of the heat recovery HR cell D a...

Page 8: ... and crank the plastic lock to the right using for instance a chisel figure 6 The fan then falls down and can be pulled out of the unit Disconnect the quick coupling of the fan conductors When needed detach the intermediate shaft of the bypass damper from the end of the partition wall figure 7 Condensing water During the heating season humidity of extract air condenses into condensing water Water ...

Page 9: ...is displayed and the unit operates at speed 1 check the fan speed Wiring fault in the carbon dioxide sensor in the control panel or in the humidity sensor or the cable is of the wrong type Contact a maintenance company The connections have to be checked and corrected if necessary 9 Freezing alert message is displayed and the unit is stopped Antifreeze of the water circulating radiator is active NO...

Page 10: ...ncy of the octave band Hz 63 41 50 56 58 59 64 67 69 35 45 49 51 51 56 58 58 125 45 53 56 59 62 65 68 71 33 43 46 49 49 54 56 59 250 50 54 57 61 63 66 68 70 24 32 37 40 40 45 47 49 500 48 53 56 59 60 63 65 68 37 43 46 48 48 52 54 56 1000 45 54 57 60 62 64 66 67 30 36 39 42 42 46 48 50 2000 35 46 50 55 58 61 64 66 22 32 34 38 38 43 45 48 4000 26 41 46 51 54 58 60 63 16 20 22 25 25 31 33 36 8000 21 ...

Page 11: ... it must be replaced by the manufacturer authorised maintenance company or other qualified person in order to avoid danger T Supply air fan P Extract air fan M1 Protective voltage transformer 230 VAC 16 VAC L Earthed cord TK Safety switch R1 Additional heating radiator 90 C and 130 C with overheat protection R2 Post heating radiator 90 C and 130 C with overheat protection M Damper motor 24 V DC Wi...

Page 12: ...e In this case remove one of the control panels and change the address of the other panel The above mentioned situation can arise in connection with the later installation of an additional control panel External electrical connection DUPLEXVENT DV145SE METAL M WHITE 2 B ORANGE 2 A WHITE 1 ORANGE 1 2 TWISTED PAIR 1 TWISTED PAIR NOTE Faulty connection of the wire DESTROYS CONTROL PANEL NOTE Faulty c...

Page 13: ... Condensing water connections The delivery includes a water seal By connecting a pipe to the water seal the water condensing from extract air can be led to a floor drain not directly to the drain The pipe must not rise after the water seal The unit has to be mounted horizontally level so that condens ing water can get freely out of the unit The minimum distance between the top of the unit and the ...

Page 14: ...What the units include can vary depending on the sales area MOUNTING Attic floor penetration plate option When an attic floor penetration plate is used the tightness of the vapour barrier has to be ensured Minimum distance to side walls is 15 mm 547 8 747 15 15 0 DV145SE ...

Page 15: ...art Code 12 G4 coarse filter 978047 13 Bypass assembly indicate if 3475900 Right or left handed 14 Damper motor 930613 15 Extract air outlet 985035 16 Protective voltage transformer 940150 17 Motherboard 949045 18 Safety switch 948370 19 Additional heater 1500 W 942220 20 Post heater 900 W R 942211 Post heater 900 W L 942210 No Part Code 21 Door assembly 3476000 22 Door latch assembly 3355900 23 N...

Page 16: ...mpliance with this requirement by an assessed and registered Competent Person should follow a Best Practice process and adopt air flow measurement Method A The Unconditional Method using a suitable UKAS certified measuring instrument Generically referred to as a Zero Pressure Air Flow Meter or Powered Flow Meter Further information on this method is detailed in NHBC Building Regulations Guidance N...

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