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8.11 Automatic defrost protection for living areas (Xcell 400 QVI model only)

Provides protection against freezing in case of a central heating failure.

If activated, the display flashes GREEN and „Frost Protection Monitoring‟ is displayed.
A temperature sensor is located on the exhaust air side of the MVHR, which monitors the exhaust air temperature.

When the temperature drops below 8ºC the MVHR switches off automatically. When the exhaust air temperature in

the MVHR increases by approx. 10% (0.8ºC), the MVHR switches on again automatically. During the initial

installation, the frost protection monitoring mode is suppressed for 90 minutes. If the exhaust air temperature is still

below 8ºC after this period has elapsed, the MVHR switches off again, the display flashes GREEN again and „Frost

Protection Monitoring‟ is displayed.

8.12 7-day timer switch (Xcell 400 QVI model only)

Refer to sections 7.6 and 7.9 for the relevant wiring diagrams.

Only one 7-Day Timer Switch may be connected to each MVHR.
Minimum size of 3-core cable to be used for switch connections: 0.5mm².
Functions of the 7-Day Timer Switch:

Off

- MVHR switched off or automatic mode, see note below

Day mode

- MVHR runs permanently on Fan speed 2

Night mode

- MVHR runs permanently on Fan speed 1

Automatic time mode

- The MVHR switches between day mode (Fan speed 2) and

night mode (Fan speed 1) according to the times set on the

timer switch.

Boost mode

- MVHR runs permanently in Boost mode (Fan speed 3)

Boost mode is also signified by an LED on the display panel.

Filter service indicator:

On the 7-Day Timer Switch there is a dial inside the front panel for setting the filter service time between 2 and 6

months. Upon expiry of the filter service period, the LED flashes to indicate the filter needs servicing i.e. cleaning or

changing.
Note:

When a 7-Day Timer Switch is connected to the MVHR along with a CO

2

Sensor and/or a Humidity Sensor, the „Off‟

position on the 7-Day Timer Switch acts as automatic mode for all controllers.

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Содержание Xcell 400 QV

Страница 1: ... Installation and Operating Instructions Xcell 400 QV Xcell 400 QVW Xcell 400 QVI Mechanical Ventilation Unit with Heat Recovery Please ensure these instructions are kept safe and accessible at all times ...

Страница 2: ...15 7 2 Automatic 3 speed switch Xcell 400 QVW model only 16 7 3 Automatic 3 speed switch CO2 sensor Xcell 400 QVW model only 17 7 4 Automatic 3 speed switch CO2 sensor up to three humidity sensors Xcell 400 QVW model only 18 7 5 Automatic 3 speed switch up to four humidity sensors Xcell 400 QVW model only 19 7 6 MVHR automatic control connection PCB Xcell 400 QVI model only 20 7 7 CO2 sensor Xcell...

Страница 3: ...iver and transmitter Xcell 400 QVI model only 35 8 15 Summer bypass Xcell 400 QVI model only 36 8 16 Defrost heater unit 36 8 17 Fan fault monitoring Xcell 400 QVW model only 36 8 18 Fan fault monitoring Xcell 400 QVI model only 36 9 Maintenance 37 9 1 Filters 37 9 1 1 Removing and re fitting the heat exchanger filters 37 9 1 2 Removing and re fitting the summer bypass filter 37 9 2 Air filter box...

Страница 4: ... signs of damage If any damage is found contact the supplier Only use original spares in order to avoid secondary damage Please ensure that all packaging materials are disposed of properly in accordance with current environmental requirements 2 Components and Materials of Construction The MVHR comprises of the following main components Item Description Outer casing Powder coated stainless steel co...

Страница 5: ...ir inlet outlet valves and the air inlet outlet grilles must be strictly observed The unit may only be connected to a 220 240V AC power supply The following applications installations are prohibited The use of excessive fat contaminated exhaust air extracting explosive gases extracting particle contaminated air extracting adhesive particulate matter Installing the MVHR outdoors Connecting extracto...

Страница 6: ... a spirit level for effective condensate drainage The mains voltage must be 220 240V 50 60 Hz If mounting on low density walls i e plaster boarded stud walls use the following fixing method Use 15mm nominal plywood backing board to connect directly to the wall internal frame stud and then mount the MVHR unit on the plywood Ensure internal thermal or sound insulation is installed inside the stud wa...

Страница 7: ... Once the MVHR has been mounted in the right or left handed orientation the Heat Exchanger Retaining Bracket supplied see picture below must be fitted to the front of the MVHR as follows Remove the Access Hatch on the front of the MVHR by turning it to the left Fit the Retaining Bracket and retaining screw supplied with the MVHR Replace the Access Hatch by turning it to the right Important The Hea...

Страница 8: ... installation the two duct connections on the right hand side are for o Extracting the used air out to atmosphere Atmosphere Discharge o Supplying the heated fresh air into the building Dwelling Supply The Xcell 400 MVHRs are manufactured for either a right or left handed installation and therefore cannot be changed on site Right handed MVHRs are available as follows o Xcell 400 QV o Xcell 400 QVW...

Страница 9: ...sitioned higher than the water surface of the water trap and that the Condensate Drain Tube ends within the water head of the water trap The Condensate Drain Tube should be checked annually and cleaned if necessary A Condensate Drain Tube Ø 20mm and 1 0m long is supplied with each MVHR The water trap must be purchased separately from a local plumbing stockist 5 7 Installation example Exhaust air f...

Страница 10: ...10 5 8 Installation dimensions 5 8 1 Right hand installation ...

Страница 11: ...11 5 8 2 Left hand installation ...

Страница 12: ...on the Fan speed selected 1 2 or 3 the Fans have a specific control voltage of between 1 7 V minimum up to a maximum of 10 0 V The control voltage for the supply air and exhaust air Fans is also adjusted via each set of three potentiometers on the PCB S1 Supply air speed 1 blue potentiometer and S1 Exhaust air speed 1 red potentiometer S2 Supply air speed 2 blue potentiometer and S2 Exhaust air sp...

Страница 13: ...r increased air exchange Note When the MVHR is being used with a Manual 2 Speed Switch Xcell 400 QV model only only speeds 2 and 3 will apply 6 5 Technical data Technical data Units Specification Voltage Frequency V Hz 220 240V 50 60 Hz Max current consumption A 2 0 Power consumption Speeds 1 2 3 W 35 85 190 Air flow rate Speeds 1 2 3 m h 150 250 350 Air flow rate at 100 Pa Static Pressure m h 410...

Страница 14: ...be connected 7 Day Timer Switch 96004AA Suitable for the Xcell 400 QVI models only Only one 7 Day Timer Switch can be used per MVHR Can be surface mounted only RF Remote Control Receiver 96006AA Suitable for the Xcell 400 QVI model only Only one RF Receiver can be used per MVHR RF Remote Control Transmitter 96007AA Suitable for the Xcell 400 QVI model only Up to six RF Transmitters can be used per...

Страница 15: ...ler Xcell 150 QV Internal Terminals Green Yellow Brown Blue Bl Bn G Y 1 Phase 220 240Vac 50 60Hz N Fuse L N E N L L Bn Bl G Y 10 V O P 0V Fused Switch Spur By Others MS2 Controller 23513AW 10V O P 0V 7 Electrical Wiring Diagrams 7 1 Manual 2 speed switch Xcell 400 QV model only ...

Страница 16: ...open Jp6 closed Jp7 open Jp8 closed Jp9 open Jp10 open Fused Switch Spur By Others AEP Ref Xcell 150 04e a Q3SP Controller 96005AA Green Yellow Brown Blue 1 Phase 220 240 Vac 50 60Hz Fuse L N E Bn Bl G Y Fused Switch Spur By Others N L 7 2 Automatic 3 speed switch Xcell 400 QVW model only ...

Страница 17: ...Jp7 open Jp8 closed Jp9 open Jp10 closed Transformer Green Yellow Brown Blue 1 Phase 220 240 Vac 50 60Hz Fuse L N E Bn Bl G Y Fused Switch Spur By Others N L AEP Ref Xcell 150 03e a QCO Controller 96003AA Q3SP Controller 96005AA 7 3 Automatic 3 speed switch CO2 sensor Xcell 400 QVW model only ...

Страница 18: ...oller 96005AA QHS Controller 96009AA QCO Controller 96003AA QHS Controller 96009AA QHS Controller 96009AA Fused Switch Spur By Others Green Yellow Brown Blue 1 Phase 220 240 Vac 50 60Hz Fuse L N E Bn Bl G Y Fused Switch Spur By Others N L AEP Ref Xcell 150 05e a 7 4 Automatic 3 speed switch CO2 sensor up to three humidity sensors Xcell 400 QVW model only ...

Страница 19: ... Controller 96005AA QHS Controller 96009AA QHS Controller 96009AA QHS Controller 96009AA QHS Controller 96009AA Fused Switch Spur By Others Green Yellow Brown Blue 1 Phase 220 240 Vac 50 60Hz Fuse L N E Bn Bl G Y Fused Switch Spur By Others N L AEP Ref Xcell 150 06e a 7 5 Automatic 3 speed switch up to four humidity sensors Xcell 400 QVW model only ...

Страница 20: ...provided Automatic controllers and sensors are powered with an input voltage of 24V DC see the relevant wiring diagrams below for the automatic controller s to be connected to the MVHR 24V DC outputs are available for bussed control e g BMS systems Output 0 AUS_0 Operating display Output 1 AUS_1 Filter display Output 2 AUS_2 Fan fault message Output 3 AUS_3 Automatic defrost protection for living ...

Страница 21: ...have been made replace the Cover Plate and secure with the four fixing screws provided Note 1 When a CO2 Sensor is connected to the PCB the link wire between RM and RM must not be removed 2 When a CO2 Sensor is connected to the PCB the link wire between EIN_0 and EIN_1 must be removed 3 After the initial installation or once the power is restored following a power loss the MVHR will only become op...

Страница 22: ...been made replace the Cover Plate and secure with the four fixing screws provided Note 1 When a Humidity Sensor is connected to the PCB the link wire between RM and RM must not be removed 2 When a Humidity Sensor is connected to the PCB the link wire between EIN_0 and EIN_1 must be removed 3 After the initial installation or once the power is restored following a power loss the MVHR will only beco...

Страница 23: ...rews provided Note 1 The Auto Zu switch on the Front Panel of the 7 Day Timer Switch is non operational when connected to the Xcell 400 QVI MVHR 2 The terminal block shown in the above wiring diagram is supplied separately with the 7 Day Timer Switch a This terminal block must be secured with suitable screws after the wiring is complete 3 When a 7 Day Timer Switch is connected to the PCB the link ...

Страница 24: ...e four fixing screws to remove the Cover Plate Ensure all cables are fitted to the PCB via the rubber grommets also located on top of the MVHR When all connections have been made replace the Cover Plate and secure with the four fixing screws provided Note 1 When a Smoke Detector is connected to the PCB the link wire between RM and RM must be removed 2 The link wire between EIN_0 and EIN_1 must onl...

Страница 25: ...gram below Push the aerial of the RF Receiver through the grommet in the cover plate place the RF Receiver inside the pocket provided and re secure the cover plate with the screws provided Move the aerial into an upright position 7 12 RF Transmitter Xcell 400 QVI model only No wiring is required for the RF Transmitter Mount the RF Transmitter on the wall in each of the required rooms Up to six RF ...

Страница 26: ...d switch Xcell 400 QV model only The terminal box for all wiring connections is situated on top of the MVHR Refer to section 7 1 for the relevant wiring diagram Only one Manual 2 Speed Switch may be connected to each MVHR Minimum size of 3 core cable to be used for switch connections 0 5mm This switch option is for manual control only and therefore none of the Xpelair automatic control accessories...

Страница 27: ...1 Moisture Protection 0 MVHR OFF Reset timer Press plus and minus keys together and hold for 2 seconds Speed 3 Speed 3 time limited only when no other controllers are used alongside the Automatic 3 Speed Switch after 1 hour the MVHR automatically switches back to Fan speed 2 Important note The On Off function which is only possible when no other controllers sensors are used alongside the Automatic...

Страница 28: ...eed speed 1 or speed 3 is manually activated on the Automatic 3 Speed Switch the CO2 Sensor is deactivated Switch points of the CO2 Sensor 1 5 V MVHR switches from speed 2 to speed 1 900 ppm 5 0 V MVHR switches from speed 1 to speed 2 1000 ppm 7 5 V MVHR switches from speed 2 to speed 3 1100 ppm 5 0 V MVHR switches from speed 3 to speed 2 1000 ppm 8 4 Humidity sensor Xcell 400 QVW model only The t...

Страница 29: ...er Automatic Normal Operation Esc Enter Off Smoke Alarm Normal Operation Esc Enter 8 5 2 Control panel main menus The picture sequence below shows how to access the main menus within the Control Panel Speed 1 Normal Operation Esc Enter Esc Enter Press and hold for 5 seconds Customer menu Esc Enter Customer menu Operational Dimensions Customer menu Esc Enter Customer menu Real time timer Customer m...

Страница 30: ...ttings are altered for a period of 120 seconds the display switches automatically to normal operation 8 5 4 Control panel filter cleaning or replacement reminder settings menu The sequence below describes how to modify the time period between reminders to clean or replace the MVHR Filters The default factory setting is 6 months Settings Esc Enter Filter time 6 months Follow the instructions above ...

Страница 31: ...play the Settings Menu on the Control Panel Use the arrow button S3 to switch from the Settings Menu to the Operational Dimensions menu Use the arrow button S3 to switch to each air temperature reading in the Operational Dimensions menu Use the arrow button S3 to check the status of the Summer Bypass i e open or closed in the Operational Dimensions menu Use the arrow button S3 to check the current...

Страница 32: ...ime timer menu Press the Enter button S2 briefly Not available on Monday or Active on Monday is displayed Three setting options are available per day automatic speed level 1 or speed level 2 Use the arrow button S3 to switch between the days of the week Exit the real time timer menu by pressing the ESC button S1 twice Note when no settings are altered for a period of 120 seconds the display switch...

Страница 33: ...MVHR Xcell 400 QVI model only Setting 1 default factory setting Jumper 1 is not selected on the display panel Automatic defrosting becomes active when the outgoing air temperature in the MVHR unit drops below around 3ºC i e there is a risk of ice The supply air Fan will be switched off for 2 hours during which only warm exhaust air will flow into the Heat Exchanger The Heat Exchanger will then be ...

Страница 34: ...ions 7 6 and 7 9 for the relevant wiring diagrams Only one 7 Day Timer Switch may be connected to each MVHR Minimum size of 3 core cable to be used for switch connections 0 5mm Functions of the 7 Day Timer Switch Off MVHR switched off or automatic mode see note below Day mode MVHR runs permanently on Fan speed 2 Night mode MVHR runs permanently on Fan speed 1 Automatic time mode The MVHR switches ...

Страница 35: ...ns 0 5mm Button I switches the MVHR to speed 1 Night speed Button II switches the MVHR to speed 2 Normal running Button III switches the MVHR to speed 3 Boost Auto button switches the MVHR to automatic mode gives the CO2 Humidity Sensors priority over speed control 15 min button switches the MVHR to boost speed for 15 minutes then returns to automatic setting 60 min button switches the MVHR to boo...

Страница 36: ...3 C the Defrost Heater Unit will switch on and warm the incoming air prior to it arriving at the MVHR to prevent ice forming within the MVHR Heat Exchanger When the incoming air temperature rises above the set temperature 0 C to 3 C the Defrost Heater Unit will switch off Note The fly screen must be cleaned regularly 8 17 Fan fault monitoring Xcell 400 QVW model only Should the supply air Fan fail...

Страница 37: ...supply 2 Remove the Access Hatch by turning it to the left 3 Remove the two Filters from the MVHR see picture above 4 Insert cleaned or new Filters into their correct positions in the MVHR a Please note the clean side of the filter is placed next to the Heat Exchanger b Filters can be cleaned by gently knocking together to remove any dust dirt 5 Replace the Access Hatch by locating and turning to ...

Страница 38: ...specialist technician as and when required depending on the level of contamination but at least every 2 years Contact details for servicing by Xpelair approved technicians can be found on the back of this booklet The cleaning procedure is as follows 1 Disconnect the MVHR from the mains supply 2 Remove the Access Hatch by turning it to the left 3 Remove the Retaining Bracket located in front of the...

Страница 39: ...y No error message on the display panel Xcell 400 QVI model only Mains supply interrupted Contact fault on Fan control or power leads Fuse has blown Mains supply fuse or Supply cord plug fuse or Main Control PCB fuse Xcell 400 QVI model only Supply air and or exhaust air Fan does not work Display is flashing GREEN Frost Protection Monitoring is displayed Xcell 400 QVI model only Exhaust air temper...

Страница 40: ...e the two G4 Filters 4 Remove the Heat Exchanger Retaining Bracket and retaining screw 5 Remove the Heat Exchanger carefully keeping it horizontal to avoid damaging the EPP housing 6 The following procedure applies to both MVHR Fans only remove faulty Fans from the MVHR a Identify the faulty Fan within the MVHR Note The upper Fan A provides the supply air and the lower Fan B provides the exhaust a...

Страница 41: ...e plastic Motor Mount is correctly orientated and is flat against the EPP housing i Secure the new Fan into place with the three retaining screws j Replace the Bell Mouth push gently into the EPP housing but ensure it is clips fully into place k Spin the blades of the new Fan to ensure that it moves freely and is not obstructed in any way If any obstruction is present the Fan has not been position...

Страница 42: ...he mains supply back on 10 The MVHR is ready to recommence operation 10 4 Installation of a replacement display PCB 1 Disconnect the MVHR from the mains supply 2 Remove the Access Hatch by turning it to the left 3 Remove the metal Front Panel by removing the sixteen screws along its four edges 4 Remove the Display PCB and disconnect the power leads of the faulty Display PCB from the Control PCB lo...

Страница 43: ...43 ...

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