TECHNICAL SPECIFICATION

Transcription

1 Vallox 50SE EFFECT E Code A VALLOX DIGIT SED ELECTONIC CONTOLLE WITH LCD DISLAY LV TECHNICAL SECIFICATION ODELS: L LV L LV Supply and extract air ventilation with heat recovery Silent operation Energy-efficient unit; high-efficiency cross-counter flow heat recovery cell and integrated direct current fans Electronic DIGIT SED control Week clock control as a Standard feature Humidity control (Option) Carbon dioxide control (Option) aintenance reminder Summer / winter automation Fireplace / booster switch function at the controller Good filtering Fixed air flow measurement outlets The LV model is especially designed for use with ground heat systems. Silencing unit (option) Electrical connection 30 V, 50 Hz, 5.9 A Class of protection I 34 Fans Extract air Supply air 0.75 kw 0.76 A 0.75 kw 0.76 A 46 dm 3 /s (00 a) 30 dm 3 /s (00 a) Heat recovery Cross-counter flow cell, >80 % Heat recovery bypass Summer / winter automation 0,3 A reheating unit (Standard) ost-heating unit (Option) LV reheating unit (Standard) ost-heating unit (Option) Electric, 000 W Electric, 000 W or VKL water radiator 5,9 A LV heating / cooling radiator unit VKL water radiator or electric 000 W Filters Weight Supply air Extract air G4 and F7 G4 0 kg Ventilation adjustment Options - control via control panel - week clock control - CO and %H control (Option) Options - CO sensor - %H sensor - filter guard (supply and/or extract air) - LON converter - ostheateing VKL water radiator for LV-model - Electric post-heating unit for LV unit - Silencer element

2 DIENSIONS AND AIN ATS Dimensions and duct outlets model LV radiator (liquid-circulating preheating) lead-throughs LV model 4 B A 4 A 3 B 3 odel VKL radiator (liquid-circulating post-heating) lead-throughs A B 4 DIGIT SED ELECTONIC CONTOLLE WITH LCD DISLAY A 3 B ain parts Options odel L Inner diameter of female outlets ø 00 mm Outdoor air to the unit Extract air from the dwelling 3 Supply air to the dwelling 4 Exhaust air out A eturn water/liquid B Supply water/liquid Weight of unit 0 kg 3 5 Extract air fan Supply air fan reheating radiator (electric 000 W or liquid, standard) Heat recovery cell 6 Outdoor air filter F Outdoor air filter G4 Extract air filter G4 Summer / winter damper Safety switch easurement outlets Control panel DIGIT SED ost-heating radiator electric 000 W or water Carbon dioxide sensor Humidity sensor LON converter Filter guard (supply and/or extract air)

3 EFOANCE Air volumes SULY / EXTACT AI VOLUES DC FANS a SF = Input power (total) (W) Air flow (max.) (dm 3 /s) = Extract air fan = Supply air fan SF (Specific Fan ower) guideline value <.5 (kw/m 3 /s) At a lower total pressure, SF will be smaller at this speed. ED and SD are examples of pressure losses in supply and extract ducts SF =,5 kw/m 3 /s easuring points after the connection outlet. Fan curves indicate the total pressure available for duct losses. Supply air Extract air ressure loss in ducts. Total pressure Sound values Adjustment position Air flow (dm 3 /s) 63 edium 5 frequency 50 of the octave 500 band, Hz L W, db L WA, db(a) Adjustment position Air flow (dm 3 /s) Volume flow rate L pa, db(a) Sound power level from the ventilation unit to supply air ducts by octave band Lw, db 5 ADJUSTENT OSITION / AI FLOW A-weighted sound pressure level db (A) coming from the unit through the envelope in rooms where the unit has been installed (0 m sound absorption) ADJUSTENT OSITION / AI FLOWS (supply / extract) /63 80/83 09/09 40/ Sound power level from the ventilation unit to extract air ducts by octave band Lw, db ED SD ADJUSTENT OSITION / AI FLOW ECOENDED OEATING ANGE SF = kw/m 3 /s dm 3 /s S Fan speeds Extract air flow (dm 3 /s) Note! When the system is being adjusted, post-heating must be selected (winter setting). E The total input power of the fans W

4 Note! During installation, circa 70 mm mounting space is needed above the silencing part. EFOANCE/VALLOX SILENCE UNIT The pipes of the LV radiator are not included in the delivery VKL radiator lead-throughs Air flows SULY/EXTACT AI VOLUES WITH SILENCE UNIT The silencer unit decreases both supply and extract air flow by to 3% (cf. supply/extract air volume curve on page 3). 93 min Sound values for silencer unit + 50 Effect SE Adjustment position Air flow (dm 3 /s) 63 edium 5 frequency of 50 the octave 500 band, Hz L W, db L WA, db(a) Sound power level by octave band in supply air ducts after the silencer unit L w (db) ADJUSTENT OSITION/AI FLOW Sound power level by octave band in extract air ducts after the silencer unit LW L w (db) ADJUSTENT OSITION/AI FLOW A-weighted sound pressure level db (A) coming from the unit through the envelope in the rooms where the unit has been installed (0m sound absorption) Adjustment position Air flow (dm 3 /s) L pa, db(a) ADJUSTENT OSITION/AI FLOWS (supply/extract) /50 57/63 65/7 76/8 85/9 00/07 4/4 6/

5 3 4 Start button With this button, you switch the unit on and off. When the indicator is lit, the unit is on. Carbon dioxide adjustment With this button, you set carbon dioxide adjustment on and off. When the indicator is lit, the adjustment is on. Humidity adjustment With this button, you set humidity adjustment on and off. When the indicator is lit, the adjustment is on. ost-heating ress this button to switch post-heating on and off. reheating also switches on. When the indicator is lit, post-heating is on. The summer function is active when the indicator is not lit. Control can be controlled with a control panel coming with the unit (3 at most) and with Optional CO (5 at most) and %H sensors ( at most). Fan speeds of the unit can be controlled via remote monitoring with a voltage signal. In case of disturbances, a potential-free relay contact signal is issued. With an Optional VALLOX LON converter, the whole operation of the unit can be controlled via remote monitoring. Week clock control The week clock in the control panel of the unit can be used to programme the desired fan power Option ( 8) for each hour in the day. Control panel Scrolling up With this button, you can scroll the displays upward. Scrolling down With this button, you can scroll the displays downward. Increase button With this button, you can increase values. Decrease button With this button, you can decrease values. CONTOL ANEL Keyboard 3 C 0:0 Fan speed (3). Supply air temperature ( C). ost-heating is on. Time. Filter guard alert. aintenance reminder alert. Fireplace / booster switch on. The fireplace / booster switch is activated in this display by simultaneously pressing down the + and buttons for seconds. Week clock control on. 3 C ain display 0:0 Fan speed can be changed in this display with the + and buttons ounting, removing and wiring of control panel The control panel is wired straight from the electrical connection box. The control panel can also be connected in series with a CO sensor or another control panel. (See External electrical connections on page 8). Control panel addresses If two or more control panels are connected to the system, the addresses of the control panels need to be changed. E.g. 3 control panels. Connect the first control panel to the unit and change its address to 3. Connect the second control panel to the unit and change its address to. Connect the third control panel and make sure that its address is. If control panels have the same address, they go to bus fault state. 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. aneelin osoite anel address 5

6 OUNTING THE CONTOL ANEL AND SENSOS Surface mounting of control panel A control panel is mounted on the wall or on a -part instrument box. Width Height Depth 90 mm 0 mm 3 mm Wiring A B Electronics board of control panel Cable: NOAK x x 0.5 mm mm NOTE! Faulty coupling of the (+) wire destroys the control panel! = orange = + = white = } ca. VDC 3 = orange = A 4 = white = B 5 = metal = signal ground ounting and wiring of humidity sensor The sensor is wired straight from the electrical connection box of the unit. Surface mounting Base plate of sensor Wiring Electronics board of %H sensor S + HUIDITY SENSOS When mounting two or more humidity sensors, connect them to the terminal block of the connection box by connecting the first humidity sensor to %H, in place of the resistor 6K8 in the terminal block (remove the resistor in this case), and the second humidity sensor to %H. See the electrical diagram. Cable: x 0,5 mm ounting and wiring of carbon dioxide sensor The CO sensor is connected directly from the connection box of the unit, or in series with another CO sensor or control panel (see External electrical connections on page 8). Surface mounting 4 Wiring A B Cable: NOAK x x 0.5 mm mm CABON DIOXIDE SENSOS Carbon dioxide sensors are connected individually. When the first carbon dioxide sensor has been connected to the system, the unit is switched on. After this, the unit gives the sensor an address. Follow the same steps for other carbon dioxide sensors NOTE! Faulty coupling of the (+) wire destroys the carbon dioxide sensor! = orange = + = white = } ca. VDC 3 = orange = A 4 = white = B 5 = metal = signal ground Base plate of the CO sensor Electronics card of the CO sensor (model may vary) 6

7 INTENAL CONNECTION DIAGA, integrated fans S E H L TK T T K L L V = Supply fan = Extract fan = Direct-current transformer with protective voltage coil = Interference suppressor = Earthed cord = Safety switch = Overheating protector 70 C (automatic reset) = Heating radiator safety thermostat 30 C (reset, switch the unit off) = Choke = reheating radiator = ost-heating radiator = Water radiator thermostat valve = Damper motor = Temperature sensors = Auxiliary resistor 6.8 kohm TE DS = Supply air duct filter guard (option) DS = Extract air duct filter guard (option) V = Solenoid valve = Circulation pump Wire colours: BU = blue BN = brown BK = black GNYE = yellow-green DS DS TE 4 (EXTACT AI) TE 3 (OUTDOO AI) TE (SULY AI) TE (EXHAUST AI) H CELL OTHEBOAD S S S S G N D -+ AB DS FAULT EOTE %H %H BOOSTE SIGNAL CONTOL SWITCH 0-0 V DC S + S GND + S + S D C T D C + S S S L N NC S-485 BUS - A B F3 30 V 0 V 6 V 0 V U3 U H L N V K TK LV L L L N L3 N NC 3 W W GND L4 N4 L N GNYE BU L BN BU BN BN BU 30 C 70 C 30 C T L T T L 70 C T V Water radiator actuator T BN YE BU BU BU BU GNYE GNYE BK BN BN YE BU BU BU BU GNYE GNYE BK BN C 7

8 EXTENAL ELECTICAL DIAGA LonWorks-FT0 BLACK = WHITE = B OANGE = A WHITE = - OANGE = + LON CONVETE OTION A B + - A B A B + - A B NOAK xx NOTE! Faulty coupling of the + wire DESTOYS THE CONTOL ANEL. CONTOL ANEL ONE O OE INCLUDED AS STANDAD NOTE! Faulty coupling of the + wire DESTOYS THE SENSO. CO -SENSO ONE O OE OTION S + S + THE FIST HUIDITY SENSO IS CONNECTED TO ELACE THE 6k8 ESISTO. NOAK xx VDC HUIDITY SENSO %H (OTION) HUIDITY SENSO %H (OTION) EOTE CONTOL The short-circuit wire has to be removed before connection. x0.5 x0.5 x0.5 FAULT SIGNAL AX A, 4 VDC (OTENTIAL-FEE CONTACTS) x0.5 FIELACE SWITCH Button switch (self-resetting contact) x0.5 x0,5 DS FAULT SIGNAL FAN CONTOL %H %H S-485 BUS BOOSTE S + S GND + S + S SWITCH + - A B L L L N SOLENOID VALVE CICULATION U VALLOX 50 EFFECT SE lug connection 6 A when the unit is equipped with electric pre- and post-heating.8 m from top of the unit 8

9 FILTEING, HEAT ECOVEY, HEATING Filtering Efficient filtering of outdoor air (G4 + F7) prevents harmful particles from entering the ductwork and rooms via the unit. Good filtering of extract air (G4) diminishes the contamination of the unit and ensures efficient heat recovery and extract air fan operation. Clogging of the supply/ extract air filters can be monitored by equipping the unit with a pressure difference switch. Heat recovery and heating With efficient heat recovery most of the heat from contaminated extract air can be transmitted to outdoor air coming inside. The efficiency of the heat recovery cell is circa 80%. If outdoor air does not get sufficiently warm in the heat recovery cells, it can be heated with a water or electric post-heating unit. The unit features an automatic heat recovery bypass function, which eliminates needless heating of outdoor air during summer. Antifreezing The automatic antifrost function of the heat recovery cell intermittently stops the supply air fans when the temperature of exhaust air goes under the set threshold value. In order to minimise momentary stoppages of the supply air fans the unit is also equipped with an electric preheating unit or a liquid-circulating preheating radiator (LV). Electric preheating unit (standard equipment) In unit ower.0 kw, 4.3 A LV radiator heating power ( W) The outdoor temperature starting preheating is set at the control panel. The value set must be lower than that of the liquid coming from the ground collector. Ethylene glycol 5% ti = - C (supply air temperature) Vn = dm 3 /s (liquid volume flow rate) LV heating/cooling preheating unit (Standard) In LV unit LV radiator cooling power ( W) Supply air temperature is chosen at the control panel. Because of the risk of humidity damage supply air temperature in a duct with no condensation insulation should not go below C in hot weather. Ethylene glycol 5% ti = 5 C (supply air temperature) elative humidity H 50% Vn = dm 3 /s (liquid volume flow rate) Temperature of air leaving the radiator C dm 3 /s 50 dm 3 /s 70 dm 3 /s Air flow dm 3 /s Temperature of air leaving the radiator C dm 3 /s 50 dm 3 /s Airflow dm 3 /s Geothermal liquid temperature C Geothermal liquid temperature C LV radiator pressure loss in liquid circulation (LV radiator causes a small pressure loss also in air flow.) Ethylene glycol 5% 35 ressure loss Δp ka ,0 0,04 0,06 0,08 Liquid flow dm 3 /s Temperature of geothermal liquid leaving radiator C Cooling of geothermal liquid of LV radiator Ethylene glycol 5% Flow dm 3 /s Air coming in - C Air coming in -30 C Temperature of geothermal liquid coming to radiator C Air flows dm 3 /s 9

10 OST-HEATING Electric post-heating unit (option equipment) Option in and 50 Effect SE LV units. ower.0 kw, 4.3 A. Water post-heating unit (option equipment) erformance of the water post-heating radiator (VKL) in and LV ti = 3 C (temperature of air coming to the radiator) tv = 50 C (temperature of water coming to the radiator) ti = 3 C (temperature of air coming to the radiator) tv = 30 C (temperature of water coming to the radiator) Total power of the radiator kw Water flow dm 3 /s dm 3 /s 35 dm 3 /s 95 dm 3 /s Total power of the radiator kw Water flow dm 3 /s dm 3 /s 60 dm 3 /s 35 dm 3 /s Cooling of water in the radiator C Cooling of water in the radiator C ti = 3 C (temperature of air coming to the radiator) tv = 35 C (temperature of water coming to the radiator) VKL water radiator pressure loss in water circulation.5 Water flow dm 3 /s Defined for 00% water Total power of the radiator kw dm 3 /s 60 dm 3 /s 35 dm 3 /s Total pressure loss ka Cooling of water in the radiator C Water flow dm 3 /s 0

11 CONTOL DIAGA/ Electric post-heating unit CONTOL DIAGA, electric post-heating unit DISTIBUTION ANEL 6 A LUG 30V 50Hz EOTE ONITOING CONTOL CENTE OF THE OETY ALA OEATION STATUS CONTOL EASUEENT ADJUSTENT LON CONVETE VALLOX 50 EFFECT SE INTENAL ELECTICAL AND CONTOL CONNECTIONS TE TE3 SILENCE SILENCE UNIT SILENCE TE4 G4 G4 T T DS T L OST-HEATING UNIT, ELECTIC ESSUE DIFFEENCE SWITCH T T EHEATING UNIT, ELECTIC F 7 L H FG TE DS ESSUE DIFFEENCE SWITCH S CO H %H %H BOOSTE SWITCH/ FIELACE SWITCH CABON DIOXIDE SENSO (5 AT OST) CONTOL ANEL (3 AT OST) HUIDITY SENSO VENTILATION ZONE B arts list Code Name Technical data Standard / (factory settings in parentheses) Option CO Carbon dioxide sensor, 5 at most Adjustment range ppm (900) Option Carbon dioxide control Adjustment range...5 min. (0) G4 Filter Supply air, extract air Standard F7 Filter Supply air Standard FG Damper motor H bypass automation, 4 V, W, 8 Nm Standard H Control panel, 3 at most User interface Standard L reheating unit Electric radiator kw Standard L ost-heating unit Electric radiator kw Option H Heat recovery cell Cross-counter flow, efficiency = 80% Standard DS ressure difference switch Adjustment range a (30) Option ressure guard on the supply air side DS ressure difference switch Adjustment range a (30) Option ressure guard of the extract air filter Extract air fan DCqv = 40 dm 3 /s (50 a) Standard Code Name Technical data Standard / Option (factory settings in parentheses) %H Humidity sensor, at most Automatic / Adjustment range...99% (99) Option Humidity control Adjustment range...5 min. (0) TE Temperature sensor, Exhaust air temperature Standard H antifreeze, Adjustment range C (H bypass) preheating control Adjustment range 6 +5 C (preheating) TE Temperature sensor Supply air temperature Standard TE3 Temperature sensor Outdoor air temperature Standard TE4 Temperature sensor Extract air temperature Standard T Supply air fan DC qv=30 dm 3 /s (50 a) Standard T Heating unit overheat protection Automatic + 70 C included in L and L T Heating unit overheat protection anual reset +30 C included in L and L S Fireplace / booster switch function Functions as either a fireplace or booster switch Option (fireplace switch) LON LON converter emote monitoring control Option

12 DESCITION OF OEATION / Electric post-heating unit Control of operation ower supply to the unit can be controlled with a contactor in the distribution panel if needed, e.g. with a timer programme. After starting, the unit first operates at base fan speed. After that power is adjusted based either on the measurement data from air quality sensors and/or on manual control at the control panel. Fan speed adjustment anual control Fan speed of the ventilation unit is controlled in 8 steps at control panel H. Week clock control The fan power of the ventilation unit is controlled in 8 steps using the week clock in control panel H. The week clock can be used to programme the desired fan power option and the setpoint for supply air temperature for each day of the week and each hour in the day. Carbon dioxide and humidity control The fan power of the ventilation unit is controlled in multiple steps depending on load and based on the measurement results of the air quality sensors (CO and %H sensors) located in the ventilation zone. The aim is to keep carbon dioxide and/or humidity content below the threshold set at control panel H. It is also possible to select an automatic search for the humidity content threshold at control panel H. One or more modes of control may be used simultaneously the mode demanding boosting is the dominant one. Fan speed varies depending on load between the base and maximum fan speeds. The base and maximum fan speeds can be set at the desired level at the control panel. Voltage signal control The fan power of the ventilation unit is controlled in 8 steps with a voltage signal of VDC. However, fan power cannot be raised above the set maximum fan speed. Voltage signal control is used to control base fan speed. This means that fan speed can be raised when necessary, but not lowered, by the manual, CO and %H controls. Voltage signal values Voltage values for each fan speed: 0 0,0...,5 VDC,75...,5 VDC,75...3,5 VDC 3 3,75...4,5 VDC 4 4,75...5,5 VDC 5 5,75...6,5 VDC 6 6,75...7,5 VDC 7 7,75...8,5 VDC 8 8,75...0,00 VDC Supply air temperature Supply air temperature can be controlled with either constant temperature control or cascade control. Supply air constant temperature control The control unit directs the operation of post-heating unit L on the basis of the measurement data given by temperature sensor TE, aiming at keeping supply air temperature at the temperature value set on control panel H ( ºC). Supply air cascade control The control unit directs the operation of post-heating unit L on the basis of the measurement data given by extract air sensor TE4, aiming at keeping extract air temperature at the temperature value set on control panel H ( ºC). Heat recovery bypass Heat recovery is enabled whenever post-heating has been switched on. Automatic heat recovery bypass is active whenever post-heating has been switched off and outdoor temperature is more than the set threshold value (to be set between ºC). In this case, the control unit directs the operation of damper motor FG on the basis of measurement results given by outdoor temperature sensor TE3 and extract air temperature sensor TE4. The aim is to get as cool supply air to the ventilation zone as possible. However, heat recovery is on whenever outdoor temperature is below the threshold set, or whenever outdoor air is warmer than extract air. Heat recovery antifreeze The control centre of the unit controls the operation of preheating unit L on the basis of the measurement data given by temperature sensors TE and TE3, thus preventing freezing alerts and the intermittent stopping of supply air fan T. If the capacity of preheating unit L is not sufficient, the control centre keeps stopping supply air fan T on the basis of the measurement data of temperature sensors TE and TE3, thus preventing the H cell from freezing. As soon as the risk passes, the fan restarts automatically. The threshold temperature ( C) and the difference area (...0 C) for antifreeze can be set at the control panel H. When fan T stops, power supply from radiator L is stopped and postheating radiator L continues to heat. For preheating to work, its threshold temperature has to be set by at least one degree higher than the threshold temperature controlling the stopping of the fan. Temperatures are adjusted at control panel H. Heating unit overheat protection Overheat protection thermostats T and T monitor the surface temperature of heating units L and L. When surface temperature exceeds the threshold, overheat protection is triggered and power supply to the heating unit is stopped. Overheat protection T is reset automatically, whereas overheat protection TS is reset by switching the unit off. Alarms ressure difference switches DS and DS monitor the pressure difference of the supply and exhaust air sides. If the pressure difference rises too high because of dirty filters or clogged ducts, an alarm will be issued. This is indicated by a symbol ( ) in the main display of the control panel. If the unit is not equipped with pressure difference switches, the symbol ( ) appearing in the main display of the control panel reminds of the need for maintenance of the unit. The reminder interval can be set between...5 months. The factory setting is 4 months. This function is active all the time. The fault signal relay in the unit gives potential-free alarm indications on the following fault conditions. Alarm of high carbon dioxide content (> 5000 ppm) switches the relay at -second intervals. In other fault situations, such as sensor faults, the contacts of the relay close. Booster or fireplace switch function The booster or fireplace switch function of the ventilation unit is controlled either at control panel H and/or separate switch S, which can be connected to the connection box of the unit. The mode of operation of the switch is selected at control panel H. The booster switch function raises fan speed to the set maximum fan speed for 45 minutes. The fireplace switch stops the extract air fan for 5 minutes and produces overpressure in the ventilation zone. LON remote monitoring control can be implemented with a VALLOX LON converter. See a separate brochure.

13 CONTOL DIAGA/ Water-circulating post-heating unit ADJUSTENT DIAGA, water post-heating unit DISTIBUTION ANEL 0 A LUG 30V 50Hz EOTE ONITOING CONTOL CENTE OF THE OETY ALA OEATION ODE CONTOL EASUEENT ADJUSTENT LON CONVETE VALLOX 50 EFFECT SE INTENAL ELECTICAL AND CONTOL CONNECTIONS TE TE3 SILENCE UNIT SILENCE SILENCE G4 TE4 V G4 Ljp DS ESSUE DIFFEENCE SWITCH F 7 T L OST-HEATING UNIT, WATE Ljm S CO H %H %H T T ELECTIC EHEATING UNIT L H FG TE DS ESSUE DIFFEENCE SWITCH BOOSTE SWITCH /FIELACE SWITCH CABON DIOXIDE SENSO (5 AT OST) CONTOL ANEL (3 AT OST) HUIDITY SENSO VENTILATION ZONE arts list VKL Code Name Technical data Standard / (factory settings in parentheses) Option CO Carbon dioxide sensor, 5 at most Adjustment range ppm (900) Option Carbon dioxide control Adjustment range...5 min. (0) G4 Filter Supply air, extract air standard F7 Filter Supply air Standard FG Damper motor H bypass automation, 4 V, W, 8 Nm Standard H Control panel, 3 at most User interface Standard L reheating unit Electric radiator kw Standard L ost-heating unit Water radiator Option H Heat recovery cell Cross-counter flow, efficiency = 80% Standard DS ressure difference switch Adjustment range a (30) Option ressure guard on the supply air side DS ressure difference switch Adjustment range a (30) Option ressure guard of the extract air filter Extract air fan DC DCqv = 40 dm 3 /s (50 a) Standard V Water radiator thermostat valve Standard Code Name Technical data Standard / (factory settings in parentheses) Option %H Humidity sensor, at most Automatic / Adjustment range...99% (99) Option Humidity control Adjustment range...5 min. (0) TE Temperature sensor, Exhaust air temperature Standard H antifreeze, Adjustment range C (H bypass) preheating control Adjustment range 6 +5 C (preheating) TE Temperature sensor Supply air temperature Standard TE3 Temperature sensor Outdoor air temperature Standard TE4 Temperature sensor Extract air temperature Standard T Supply air fan DC qv=30 dm 3 /s (50 a) Standard T Heating unit overheat protection Automatic + 70 C included in L T Heating unit overheat protection anual reset +30 C included in L S Fireplace / booster switch function Functions as either a fireplace or booster switch Option (fireplace switch) LON LON converter emote monitoring control Option 3

14 DESCITION OF OEATION / Water-circulating post-heating unit Control of operation ower supply to the unit can be controlled with a contactor in the distribution panel if needed, e.g. with a timer programme. Upon starting, the unit first operates at base fan speed. After that power is adjusted based either on the measurement data from air quality sensors and/or on manual control at the control panel. Fan speed adjustment anual control Fan speed of the ventilation unit is controlled in 8 steps at control panel H. Week clock control The fan power of the ventilation unit is controlled in 8 steps using the week clock in control panel H. The week clock can be used to programme the desired fan power option and the setpoint for supply air temperature for each day of the week and each hour in the day. Carbon dioxide and humidity control The fan power of the ventilation unit is controlled in multiple steps depending on load and based on the measurement results of the air quality sensors (CO and %H sensors) located in the ventilation zone. The aim is to keep carbon dioxide and/or humidity content below the threshold set at control panel H. It is also possible to select an automatic search for the humidity content threshold at control panel H. One or more modes of control may be used simultaneously the mode demanding boosting is the dominant one. Fan speed varies depending on load between the base and maximum fan speeds. The base and maximum fan speeds can be set at the desired level at the control panel. Voltage signal control The fan power of the ventilation unit is controlled in 8 steps with a voltage signal of VDC. However, fan power cannot be raised above the set maximum fan speed. Voltage signal control is used to control base fan speed. This means that fan speed can be raised when necessary, but not lowered, by the manual, CO and %H controls. Voltage signal values Voltage values for each fan speed: 0 0,0...,5 VDC,75...,5 VDC,75...3,5 VDC 3 3,75...4,5 VDC 4 4,75...5,5 VDC 5 5,75...6,5 VDC 6 6,75...7,5 VDC 7 7,75...8,5 VDC 8 8,75...0,00 VDC Supply air temperature Supply air temperature can be controlled with either constant temperature control or cascade control. Supply air constant temperature control The control unit directs the operation of post-heating unit L on the basis of the measurement data given by temperature sensor TE, aiming at keeping supply air temperature at the temperature value set on control panel H ( ºC). Supply air cascade control The control unit directs the operation of post-heating unit L on the basis of the measurement data given by extract air sensor TE4, aiming at keeping extract air temperature at the temperature value set on control panel H ( ºC). Heat recovery bypass Heat recovery is enabled whenever post-heating has been switched on. Automatic heat recovery bypass is active whenever post-heating has been switched off and outdoor temperature exceeds the setpoint (to be set between C). In this case, the control unit directs the operation of damper motor FG on the basis of measurement results given by outdoor temperature sensor TE3 and extract air temperature sensor TE4. The aim is to get as cool supply air to the ventilation zone as possible. However, heat recovery is on whenever outdoor temperature is below the threshold set, or whenever outdoor air is warmer than extract air. Heat recovery antifreeze The control centre of the unit controls the operation of preheating unit L on the basis of the measurement data given by temperature sensors TE and TE3, thus preventing freezing alerts and the intermittent stopping of supply air fan T. If the capacity of preheating unit L is not sufficient, the control centre keeps stopping supply air fan T on the basis of the measurement data of temperature sensors TE and TE3, thus preventing the H cell from freezing. As soon as the risk passes, the fan restarts automatically. The threshold temperature ( C) and the difference area (...0 C) for antifreeze can be set at control panel H. When fan T stops, power supply from radiator L stops and the actuated valve V of post-heating radiator L starts to open and remains open. For preheating to work, its threshold temperature has to be set by at least one degree higher than the threshold temperature controlling the stopping of the fan. Temperatures are adjusted at control panel H. Heating unit overheat protection Overheat protection thermostats T and T monitor the surface temperature of heating unit L. When surface temperature exceeds the threshold, overheat protection is triggered and power supply to the heating unit is stopped. Overheat protection T is reset automatically, whereas overheat protection T is reset by switching the unit off. Water radiator freezing protection Based on the measurement data of outdoor temperature sensor TE3 (outdoor air < 0 C) and supply air temperature sensor TE (supply air <7 C), the control centre of the unit stops fans T and and leaves valve V open, thereby decreasing the freezing risk in water circulating heating unit L. A freezing alert appears in the display of the control panel. The fans restart automatically as soon as the risk of freezing passes (supply air > 0 C). Alarms ressure difference switches DS and DS monitor the pressure difference on the supply and extract air sides. If the pressure difference rises too high because of dirty filters or clogged ducts, an alarm will be issued. This is indicated by a symbol ( ) in the main display of the control panel. If the unit is not equipped with pressure difference switches, the symbol ( ) appearing in the main display of the control panel reminds of the need for maintenance of the unit. The reminder interval can be set between and 5 months. The factory setting is 4 months. This function is always active. The fault signal relay in the unit gives potential-free alarm indications on the following fault conditions: When the antifreeze function of the water-circulating radiator is on, the contacts of the the relay open and close at 0-second intervals. Alarm of high carbon dioxide content (> 5000 ppm) switches the relay at -second intervals. In other fault situations, such as sensor faults, the contacts of the relay close. Booster or fireplace switch function The booster or fireplace switch function of the ventilation unit is controlled either at control panel H and/or separate switch S, which can be connected to the connection box of the unit. The mode of operation of the switch is selected at control panel H. The booster switch function raises fan speed to the set maximum fan speed for 45 minutes. The fireplace switch stops the extract air fan for 5 minutes and produces overpressure in the ventilation zone. LON remote monitoring control can be implemented with a VALLOX LON converter. See a separate brochure. 4

15 DISTIBUTION ANEL 0 A LUG CONTOL DIAGA/LV radiator/post-heating water CONTOL DIAGA LV/water-circulating post-heating radiator unit 30V 50Hz EOTE ONITOING CONTOL CENTE OF THE OETY ALA OEATION ODE CONTOL EASUEENT ADJUSTENT LON CONVETE VALLOX 50 EFFECT SE LV INTENAL ELECTICAL AND CONTOL CONNECTIONS TE TE3 SILENCE SILENCE UNIT SILENCE TE4 G4 V DS ESSUE DIFFEENCE SWITCH F 7 T G4 L OST-HEATING UNIT, LIQUID V Ljp Ljm S CO H %H %H H BOOSTE SWITCH / FIELACE SWITCH CABON DIOXIDE SENSO (5 AT OST) EHEATING UNIT, LIQUID L FG TE DS ESSUE DIFFEENCE SWITCH CONTOL ANEL (3 AT OST) HUIDITY SENSO VENTILATION ZONE arts list LV with water-circulating post-heating radiator Code Name Technical data Standard/ (factory settings in parentheses) Option CO Carbon dioxide sensor, 5 at most Adjustment range ppm (900) Option Carbon dioxide control Adjustment interval 5 min (0) G4 Filter Supply air, extract air Standard F7 Filter Supply air Standard FG Damper motor Automatic heat recovery bypass Standard 4 V, W, 8 Nm H Control panel, 3 at most User interface Standard L reheating unit Liquid radiator Standard L ost-heating unit Liquid radiator Option H Heat recovery cell Counter-current, efficiency = 80% Standard DS ressure difference switch Adjustment range a (30) Option ressure guard on supply air side DS ressure difference switch Adjustment range a (30) Option ressure guard on extract air side Extract air fan DC qv = 40dm 3 /s (50 a) Standard %H Humidity sensor, at most Automatic/Adjustment range 99% (99) Option Humidity control Adjustment interval 5 min. (0) Code Name Technical data Standard/ (factory settings in parentheses) Option TE Temperature sensor, Exhaust air temperature Standard H cell antifreeze Adjustment range C (H) TE Temperature sensor Supply air temperature Standard TE3 Temperature sensor, Outdoor air temperature Standard preheating control Adjustment range C (preheating) TE4 Temperature sensor Extract air temperature Standard T Supply air fan DC qv = 30 dm 3 /s (50a) Standard V Water radiator thermostat valve Standard V Solenoid valve Not included in delivery l Circulation pump Not included in delivery S Fireplace/booster switch function Either fireplace or booster switch Option function (fireplace switch) can be selected. LON LON converter emote monitoring control Option 5

16 CONTOL DIAGA/LV radiator/post-heating electric CONTOL DIAGA LV/electric post-heating radiator unit DISTIBUTION ANEL 0 A LUG 30V 50Hz EOTE ONITOING CONTOL CENTE OF THE OETY ALA OEATION ODE CONTOL EASUEENT ADJUSTENT LON CONVETE VALLOX 50 EFFECT SE LV INTENAL ELECTICAL AND CONTOL CONNECTIONS TE TE3 SILENCE SILENCE UNIT SILENCE TE4 G4 V DS ESSUE DIFFEENCE SWITCH T F 7 G4 L T T OST-HEATING UNIT, ELECTIC S CO H %H %H H BOOSTE SWITCH / FIELACE SWITCH CABON DIOXIDE SENSO (5 AT OST) EHEATING UNIT, LIQUID L FG TE DS ESSUE DIFFEENCE SWITCH CONTOL ANEL (3 AT OST) HUIDITY SENSO VENTILATION ZONE B arts list LV with electric post-heating radiator Code Name Technical data Standard/ (factory settings in parentheses) Option CO Carbon dioxide sensor, 5 pcs Adjustment range a (900) Option Carbon dioxide control Adjustment interval 5 min. (0) G4 Filter Supply air, extract air Standard F7 Filter Supply air Standard FG Damper motor Automatic heat recovery bypass Standard 4 V, W, 8 Nm H Control panel, 3 at most User interface Standard L reheating unit Liquid radiator Standard L ost-heating unit Electric radiator, 000 W Option H Heat recovery cell Counter-current, efficiency = 80% Standard DS ressure difference switch Adjustment range a (30) Option ressure guard on supply air side DS ressure difference switch Adjustment range a (30) Option ressure guard on extract air side Extract air fan DC qv = 40dm 3 /s (50 a) Standard %H Humidity sensor, at most Automatic/Adjustment range 99% (99) Option Humidity control Adjustment interval 5 min. (0) Code Name Technical data Standard/ (factory settings in parentheses) Option TE Temperature sensor, Exhaust air temperature Standard H cell antifreeze Adjustment range C (H) TE Temperature sensor Supply air temperature Standard TE3 Temperature sensor, Outdoor air temperature Standard preheating control Adjustment range C (preheating) TE4 Temperature sensor Extract air temperature Standard S Supply air fan DC qv = 30 dm 3 /s (50 a) Standard T Electric heating unit Automatic + 70 C Included in L overheat protection T Electric heating unit anual reset +30 C Included in L overheat protection V Solenoid valve Not included in delivery l Circulation pump Not included in delivery T Fireplace/booster switch Either fireplace or booster switch function Option function (fireplace switch) can be selected. LON LON converter emote monitoring control Option 6

17 Control of operation ower supply to the unit can be controlled with a contactor in the distribution panel if needed, e.g. with a timer programme. Upon starting, the unit first operates at minimum power. After that power is adjusted based either on the measurement data from air quality sensors and/or on manual control at the control panel. Fan speed adjustment anual control Fan speed of the ventilation unit is controlled in 8 steps at control panel H. Week clock control The fan power of the ventilation unit is controlled in 8 steps using the week clock in control panel H. The week clock can be used to programme the desired fan power option and the setpoint for supply air temperature for each day of the week and each hour in the day. Carbon dioxide and humidity control The fan power of the ventilation unit is controlled in multiple steps depending on load and based on the measurement results of the air quality sensors (CO and %H sensors) located in the ventilation zone. The aim is to keep carbon dioxide and/or humidity content below the threshold set at control panel H. It is also possible to select an automatic search for the humidity content threshold at control panel H. One or more modes of control may be used simultaneously the mode demanding boosting is the dominant one. Fan speed varies depending on load between the base and maximum fan speeds. The base and maximum fan speeds can be set at the desired level at the control panel. Voltage signal control The fan power of the ventilation unit is controlled in 8 steps with a voltage signal of VDC. However, fan power cannot be raised above the set maximum fan speed. Voltage signal control is used to control base fan speed. This means that fan speed can be raised when necessary, but not lowered, by the manual, CO and %H controls. Voltage signal values Voltage values for each fan speed: 0 0,0...,5 VDC,75...,5 VDC,75...3,5 VDC 3 3,75...4,5 VDC 4 4,75...5,5 VDC 5 5,75...6,5 VDC 6 6,75...7,5 VDC 7 7,75...8,5 VDC 8 8,75...0,00 VDC Supply air temperature Supply air temperature can be controlled with either constant temperature control or cascade control. Supply air constant temperature control The control unit directs the operation of post-heating unit L on the basis of the measurement data given by temperature sensor TE, aiming at keeping supply air temperature at the temperature value set at control panel H ( ºC). The cooling function of the LV radiator starts when the post-heating radiator has been switched off and supply air temperature exceeds the setpoint for supply air. Supply air cascade control The control unit directs the operation of post-heating unit L on the basis of the measurement data given by extract air sensor TE4, aiming at keeping extract air temperature at the temperature value set at control panel H ( ºC). DESCITION OF OEATION / LV radiator Heat recovery bypass Heat recovery is always active when post-heating is switched on. Automatic heat recovery bypass is active when post-heating is switched off and outdoor temperature exceeds the threshold set (can be set at C). However, heat recover is always active when outdoor temperature is less than the threshold set. Heat recovery antifreezing Controlling preheating in a liquid-circulating LV radiator is different from that in an electric preheating radiator. The liquid radiator switches on based on the measurement data from outdoor air temperature sensor TE3. The control centre of the unit starts the pump and opens the solenoid valve when post-heating is on and outdoor air temperature goes below the setpoint for preheating. The setpoint must be lower than the temperature of the liquid coming from the ground collector. If the capacity of preheating unit L is not sufficient, the control centre keeps stopping supply air fan T on the basis of the measurement data on temperature sensor TE, thus preventing the heat recovery cell from freezing. As soon as the risk passes, the fan restarts automatically. The threshold temperature ( C) and the difference area (...0 C) for antifreezing can be set at control panel H. Heating unit overheat protection (electric post-heating unit) Overheat protection thermostats T and T monitor the surface temperature of heating unit L. When surface temperature exceeds the threshold, overheat protection is triggered and power supply to the heating unit is stopped. Overheat protection T is reset automatically, whereas overheat protection T is reset by switching the unit off. Water radiator freezing protection Based on the measurement data of outdoor temperature sensor TE3 (outdoor air < 0 C) and supply air temperature sensor TE (supply air <7 C) the control centre of the unit stops fans T and and leaves valve V open, thereby decreasing the freezing risk in water circulating heating unit L. A freezing alert appears in the display of the control panel. The fans restart automatically as soon as the risk of freezing passes (supply air > 0 C). Alarms ressure difference switches DS and DS monitor the pressure difference on the supply and extract air sides. If the pressure difference rises too high because of dirty filters or clogged ducts, an alarm will be issued. This is indicated by a symbol ( ) in the main display of the control panel. If the unit is not equipped with pressure difference switches, the symbol ( ) appearing in the main display of the control panel reminds of the need for maintenance of the unit. The reminder interval can be set between...5 months. The factory setting is 4 months. This function is always active. The fault signal relay in the unit gives potential-free alarm indications on the following fault conditions: When the antifreeze function of the water-circulating radiator is on, the contacts of the the relay open and close at 0-second intervals. Alarm of high carbon dioxide content (> 5000 ppm) switches the relay at -second intervals. In other fault situations, such as sensor faults, the contacts of the relay close. Booster or fireplace switch function The booster or fireplace switch function of the ventilation unit is controlled either at control panel H and/or separate switch S, which can be connected to the connection box of the unit. The mode of operation of the switch is selected at control panel H. The booster switch function raises fan speed to the set maximum fan speed for 45 minutes. The fireplace switch stops the extract air fan for 5 minutes and produces overpressure in the ventilation zone. LON remote monitoring control can be implemented with a VALLOX LON converter. See a separate brochure. LV ADIATO CONTOL OST-HEATING OFF OST-HEATING ON TEEATUE SETTING ) 0 C ) INSTUCTIONS FO USE AND AINTENANCE: INSTUCTIONS FO USING CONTOL ANEL 3..6 ) INSTUCTIONS FO USE AND AINTENANCE: INSTUCTIONS FO USING CONTOL ANEL EHEATING SETOINT TEEATUE ) 7 C SULY AI TEEATUE > 0 C SULY AI TEEATUE < 0 C OUTDOO AI TEEATUE < 7 C OUTDOO AI TEEATUE > 7 C COOLING ON COOLING OFF EHEATING ON EHEATING OFF 7

18 INSTALLATION INSTUCTIONS A B E D C A Duct outlets B easurement outlets C Base plate D Nameplate E Lead-in seals Location of condensing water connection odel L in the figure Location of the ventilation unit The unit is mounted indoors, in a place where temperature does not fall below +0 C. The unit is mounted in a place where the sound pressure level coming through the envelope is not acoustically disturbing (storerooms, corridors, technical rooms, and in some cases rooms where people spend time). The unit is equipped with an adjustable base. If the unit is mounted on the wall, attention needs to be paid to the weight of the unit (0 kg) and to vibration isolation. The unit is splash protected (I 34) and can thus also be mounted in a damp room. Electrical connections The unit has a plug connection. The electrical connection box of the unit is located inside the unit next to the connection outlet of the exhaust air ductwork. The cables to be connected to the unit are wired through the lead-in seals located next to the connection outlet of the exhaust air ductwork. Installation emove the door of the unit (latches on top edge). emove the cover of the electrical connection box ( screws 3.5 x 9.5). ount and connect necessary cables to the terminal block as specified in the connection instructions. These instructions include the internal and external electric diagrams. Channel outlets of the unit The unit is equipped with four ø00 external connection outlets. Necessary connecting pieces (e.g. inner or bent connectors) can be attached to external connection outlets. Fix the ducts steadily and tightly to the relevant outlets. (NOTE! Unit models L/). Implement duct insulation if needed as defined in the ventilation plan. Air flow measurement outlets The fixed measurement outlets are located behind the nameplate. Via the measurement outlets, the total pressure of the supply and extract air ductwork can be measured with a differential pressure instrument. ressure readings and the unit s air volume tables (p. 3) show volume air flows at various adjustment positions. The red measurement hose is on the pressure side and the black hose on the suction side of the fan. Condensing water connections The delivery includes a water seal. With a pipe connected to the water seal, water condensing from extract air can be led to a floor drain (not straight to the drain). The pipe must not rise after the water seal. As the condensing water connection is located in the middle of the unit, the unit has to be mounted level with the horizontal. ipe connections If the unit is equipped with a liquid-circulating post-heating or LV preheating /cooling unit, it is connected to the liquid circuit using a plastic or copper pipe with a recommended inner diameter of mm. The outer diameter of the the LV radiator s plastic pipes coming from the unit is mm. Note! When using a plastic pipe pay attention to the temperature stability of the pipe! LV radiator is connected to plastic pipes. When needed, the connections can be reached by taking the heat recovery cell away. The following figures describe different ways of connecting the LV radiator and the VKL post-heating radiator. NOTE! WATE-CICULATING OST-HEATING ADIATO INCLUDES A CONTOL VALVE. 8

19 ADIATO CONNECTIONS Connection of LV preheating/cooling radiator to the ground collector of ground-source heat pump V Y I Y Circulation pump Because of the risk of condensing the pump should be suitable for pumping liquid that is colder than the ambient temperature (e.g. agna 5-60). When choosing a circulation pump, take into account the pressure loss in the whole system. Solenoid valve The valve has to be suitable for the liquid in the ground collector (for example ELV05006, Stig Wahlström). Non-return valve Stop valve Air bleeder Air bleeder is placed after the pump and at the highest point in the network. Non-return valve The pressure loss of the valve has to be lower than that of the heat pump. V I Y Y HEAT U ALWAYS IAILY FOLLOW THE CONNECTION LAN EAED BY THE HVAC LANNE O THE HEAT U ANUFACTUE. LV CICUIT See the adjoining example of connecting an LV unit to the ground collector. The supply pipe of the LV circuit is connected to the pipe returning from the collector. eturn Supply The liquid returning from the LV circuit is taken to the return pipe of the ground collector. GOUND COLLECTO If the internal pressure losses of the heat pump in the ground collector are known to be high, it is recommended to bypass the heat pump. The liquid then circulates when the heat pump is stopped. In this case the pressure loss of the bypass non-return valve has to be lower than that of the heat pump. When the requirements for starting the heating or cooling function are met, the control function of the unit opens the solenoid valve (V) and starts the pump (). The components of the LV circuit mentioned in the diagram are not included in the delivery. Observe the freeze resistance of the liquid used in the ground collector. The connection pipes of the LV radiator have to insulated against condensation. If the heat pump has an open expansion tank, it must be situated at the highest point of the network. Note! Because of the risk of humidity damage, supply air temperature in a duct with no condensation insulation should not go below C. Connection of LV preheating/cooling radiator to ground collector made for the radiator K Circulation pump Because of the risk of condensing the pump should be suitable for pumping liquid that is colder than the ambient temperature (e.g. agna 5-60). When choosing a circulation pump, take into account the pressure loss in the whole system. V Solenoid valve The valve has to be suitable for the liquid in the ground collector (for example ELV05006, Stig Wahlström). I Air bleeder Air bleeder is placed after the pump and at the highest point in the network. U ipe of ground collector (for example plastic pipe 3/0 00 m) VV elief valve ressure gauge K Diaphragm expansion tank L Connector Stop valve The LV radiator is connected to the pipe returning from the ground collector and going to the LV circuit. When the requirements for starting the heating or cooling function are met, the control function of the unit opens the solenoid valve (V) and starts the pump (). The components of the LV circuit mentioned in the diagram are not included in the delivery. The radiator has Ø mm plastic pipes () coated with an oxygen diffusion barrier. Observe the freeze resistance of the liquid used in the ground collector. The connection pipes of the LV radiator have to insulated against condensation. Note! Because of the risk of humidity damage, supply air temperature in a duct with no condensation insulation should not go below C. VV V I L U eturn Supply GOUND COLLECTO 9