Airflow DUPLEXVENT DV145SE Operating, Maintenance And Technical Instructions Download Page 1

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Low-energy ventilation unit with heat recovery

and demand-controlled automatic melting

1 Extract air fan

(behind protective cover)

2 Supply air fan

(behind extract air duct)

3  Outdoor air fi lter F7
4  Heat recovery cell
5  Summer/winter damper
6  Outdoor air fi lter G4
7  Extract air fi lter G4
8  Post-heating radiator

(behind extract air duct)

9 Safety switch
10 Additional heating radiator

(behind extract air duct)

11  Control panel DIGIT SED
12  Carbon dioxide sensor
13  Humidity sensor

Operating, 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 dm

/s 100 Pa

direct current (DC) Supply air 140 dm

/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 and F7

Extract air G4
Weight (with packaging) 88 kg
Ventilation power adjustment

- control panel control

and %RH control

- remote monitoring control (voltage signal)

Options

- CO

sensor

- %RH sensor

- Insulated attic ﬂ oor penetration plate

Base

TECHNICAL DATA

The fi gure shows the R model

8
2

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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