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PRESSURE DIFFERENCE
SWITCH (OPTIONAL)

WATER CIRCULATED POST-HEATING
UNIT (OPTIONAL)

ELECTRIC POST-HEATING UNIT
 (OPTIONAL))

PREHEATER (OPTIONAL)

SILENCER (OPTIONAL)

TECHNICAL SPECIFICA

TION

VALLOX Product Code:

VALLOX 252 D

3158400 L
3158410 R

DIGIT CONTROL

PANEL

CO

2

 SENSOR

(OPTIONAL)

%RH SENSOR (OPTIONAL)

LON CONVERTER
(OPTIONAL)

Supply air
Extract air

210 dm

3

/s   100 Pa

230 dm

3

/s   100 Pa

2 heat recovery cells, 

η

>70 %

Summer/winter automation
2.5kW, 11A
2.5kW, 11A
ca. 5kW
EU3
EU7
EU3
EU5

2x230W  1 A
2x230W  1 A

Fans

Heat recovery
Heat recovery bypass
Preheater
Electric post-heating unit
Water circulated post-heating unit
Filters

Filters

– Manual control (DIGIT control panel)
– CO

2

 and %RH control

– Remote monitoring control (LON)
– Remote monitoring control
   (voltage / current signal)

Ventilation adjustment options

– Silencer
– Preheater unit
– Electric post-heating unit
– Water circulated post-heating unit
– CO

2

 sensor

– %RH sensor
– Pressure difference switch
– LON converter

Options

Power supply

230V, 50 z (400 ) 13,9 A
(+ preheater 10.9 A)

Basic unit

210 kg

Weight

Protection class

IP 34

Supply air

Discharge air

Summary of Contents for 252 D-L

Page 1: ...2 5kW 11A ca 5kW EU3 EU7 EU3 EU5 2x230W 1 A 2x230W 1 A Fans Heat recovery Heat recovery bypass Preheater Electric post heating unit Water circulated post heating unit Filters Filters Manual control D...

Page 2: ...recovery most of the heat of contaminated extract air can be transmitted to outdoor air coming inside The efficiency of the heat recovery cells is approx 70 or 75 80 if supply air fan heat is taken i...

Page 3: ...collar HRC Heat Recovery Cell Fan curves indicate the total pressure available for duct losses 3 1 2 3 4 5 6 7 8 90 100 110 130 140 160 200 230 200 230 275 350 390 450 590 675 74 85 99 127 143 170 20...

Page 4: ...OSITION AIR FLOW l s LpA dB A Sound power level from VALLOX to supply air ducts by octave band Lw dB Sound power level from VALLOX to extract air ducts by octave band Lw dB Sound power level coming fr...

Page 5: ...ater entering the radiator tv 55 C Temperature of air entering the radiator ti 15 C Cooling of water in the radiator C Water flow dm3 s Total radiator capacity kW Air flow dm3 s Total pressure loss kP...

Page 6: ...ions TE3 EU 3 VALLOX 252 D TZ2 LP2 Pressure difference switch EU 5 TE2 Post heating unit electric CONVERTER LON Distribution panel 230 V 16 A RH CO 2 sensor max 5 pcs Control panel max 3 pcs Humidity...

Page 7: ...erheating protection of the heating unit The overheat protection thermostats TZ1 and TZ2 monitor the surface temperature in the LP1 and LP2 heating units If surface temperature exceeds the threshold o...

Page 8: ...H 1 RH 2 TE4 SV Ljp Ljm EU 5 S TE1 CO 2 sensor max 5 pcs Control panel max 3 pcs Humidity sensor Booster switch Fireplace switch ALARM RUNNING MODE CONTROL MEASUREMENT REGULATION REMOTE MONITORING CEN...

Page 9: ...tifreeze protection of the water radiator On the basis of the measuring data of the outdoor air temperature sensor TE3 outdoor air 0 C and of the supply air temperature sensor TE2 supply air 7 C the c...

Page 10: ...n two ways When extract air humidity is great as in the bathroom the condensing water is led via a screw type hose coupling and through the condensing water outlet water seal and hose delivered with t...

Page 11: ...ift the silencer unit on top of VALLOX 252 Make sure that the cable sleeves go through See the figure item D Mount the lead through cable tubes included in the delivery pushing them through the lead i...

Page 12: ...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 The control panel...

Page 13: ...5 mm2 CO2 sensor bottom panel CO2 sensor electronics board NOTE Faulty coupling of the wire destroys the carbon dioxide sensor 14 125 38 76 Carbon dioxide sensors Connect the carbon dioxide sensors on...

Page 14: ...on box Humidity sensors Connect any humidity sensors to the terminal board in the connection box by connec ting the first RH sensor in RH1 in place of the 6K8 resistor remove the resistor in this case...

Page 15: ...ormer 230V 4A 24V 25VA C Capacitor 6 F H1 Interference suppressor motherboard H2 Interference suppressor motherboard FG Damper motor 24V TE Temperature sensors R3 Auxiliary resistor 4 7kOhm R4 Auxilia...

Page 16: ...TER CIRCULATION the L1 and L on the terminal block are connected In this case THE PREHEATER DOES NOT NEED a separate power supply NOTE When the VALLOX 252 D unit is equipped with a PREHEATER and an EL...

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