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19 

 

V. 3.1-300317 

brookvent.co.uk 

 

5.0 Electrical Connections/ Wiring 

IMPORTANT 

All the electrical connections must be carried out by a qualified electrician. Installations 
and wiring must conform to current IEE regulations (UK), local or appropriate 
regulations (applying to other countries). 

 

Electrical Details:

 

 

 

Voltage:

 

230 V AC ~

 

 
Fuse rating:

 

5 A

 

 
Warning:

 

This unit must be earthed. 

 

Please Note: The core cable from the mains power supply must be connected to a fixed 
wiring  installation,  via 

a  5  amp

  fused  isolator,  as  to  comply  with  current  IEE  wiring 

regulations. 
 
A switch or circuit breaker must be used in the power supply circuit. It should be in close 
proximity to the HRV unit and should be clearly marked as the disconnecting device for 
the HRV Unit. 
 
Connecting to mains:  

The aircycle 3.1 unit comes pre-wired with 2m length of 4-core cable, which should be 
connected  into  a fan-isolation  switch.  In  turn  a 3-core mains  cable  should  be  used  to 
connect to a 

5A fused spur

, which should be located close to the unit. The unit should 

never be connected to a plug outlet. 
 

Green/Yellow = Earth 
Brown  

= Live 

Black    

= Neutral 

Grey   

= Switch    

 
The grey switch wire is used to boost the system. When a live 230v signal is applied, the 
Auto Boost function will be triggered. 

 

 
 
 
 
 

Summary of Contents for Aircycle 3.1

Page 1: ...nance user manual Applicable to the following aircycle 3 1 models PRODUCT CODE DESCRIPTION AS 90 0301 WIN 01 aircycle 3 1 c w Integral Humidistat Wall or Floor Mount AS 90 0301 WINS 01 aircycle 3 1 c w Integral Humidistat Summer Bypass Wall or Floor Mount PERFORMANCE UNRIVALLED ...

Page 2: ...ead this manual fully prior to installing the MVHR unit 1 0 Introduction 2 2 0 Safety 3 3 0 Specifications Dimensions mm 5 4 0 Installation 10 5 0 Electrical Connections Wiring 19 6 0 Controls and Settings 21 7 0 Maintenance 26 8 0 User Operation 32 9 0 Trouble Shooting 34 10 0 Customer Support 35 ...

Page 3: ...works best in new homes which are extremely airtight and have high efficiency ratings These dwellings require a high level of fresh air to ensure a healthy living environment The system works by drawing stale air from wet rooms such as Bathrooms WC s and Kitchens recovering up to 93 of the heat from this air using a highly efficient heat exchanger before expelling waste air from the home Simultane...

Page 4: ...t parts This guarantee does not affect your statutory right as a consumer Brookvent operate a policy of continuous innovation and improvement and thus reserve the right to alter product specifications and appearances without notice 2 0 Safety The following information must be read carefully to ensure safe installation and operation of the Brookvent HRV system 2 1 General Safety Do not use this app...

Page 5: ...ility of the Occupant Replacement of the filters as per the recommended required interval Cleaning the valves in the rooms regularly to prevent blockage To ensure that the system is functioning properly on a regular basis To use manual boost switches where provided to prevent build up of pollutants or mould growth IMPORTANT Dirty or clogged filters may cause inadequate ventilation in the home whic...

Page 6: ...5 V 3 1 300317 brookvent co uk 3 0 Specifications Dimensions mm FRONT SIDE TOP ...

Page 7: ...6 V 3 1 300317 brookvent co uk 3 1 Duct Connections ...

Page 8: ...h Yellow Green 230v Switched Live Boost Grey Plug and play components for easy maintenance Controls Independent fan speed control Trickle and boost settings for each fan Single 230v boost input Light switch humidistat PIR etc Boost over run timer adjustable between 0 15 min In built humidity sensor Boost activation Variable 60 100 RH factory set 70 Frost protection factory set at 5 degrees Celsius...

Page 9: ...chen 2 Wet Room 21 0 37 93 YES Kitchen 3 Wet Room 27 0 40 92 YES Kitchen 4 Wet Room 33 0 46 92 YES Kitchen 5 Wet Room 39 0 53 91 YES Kitchen 6 Wet Room 45 0 62 91 YES Kitchen 7 Wet Room 51 0 75 90 YES Exhaust Terminal Configuration Airflow Rate l s 100 Variable Specific Fan Power W l s Heat Exchange Efficiency Energy Savings Trust Best Practice Compliance Kitchen 1 Wet Room 21 0 41 93 YES Kitchen ...

Page 10: ... 38 2 37 8 36 6 28 8 16 2 12 6 20 9 43 1 36 1 21 6 60 Case Radiated 41 3 55 4 48 3 44 3 36 5 28 6 19 9 21 1 56 6 45 6 28 1 Inlet 47 2 51 9 53 9 51 8 45 8 41 4 30 4 27 9 58 2 52 3 37 8 Extract 39 2 44 3 48 1 41 7 35 4 26 1 15 1 21 3 50 7 43 2 28 7 80 Case Radiated 44 4 58 52 3 50 39 4 34 5 26 5 23 5 59 7 50 32 5 Inlet 48 9 59 8 61 6 58 7 53 2 50 1 40 7 38 1 65 5 59 7 45 2 Extract 40 3 49 2 53 1 47 ...

Page 11: ...9 36 5 60 3 53 7 39 2 85 Case Radiated 250 48 6 57 4 62 5 60 3 48 8 43 2 36 6 29 6 65 5 59 4 41 9 Inlet 54 5 66 3 62 5 68 8 57 1 53 3 48 1 50 3 71 7 66 9 52 4 Extract 54 2 58 4 57 6 55 1 47 9 43 6 36 8 33 3 62 9 55 5 41 0 Case radiated sound at 3m is calculated based on Hemi spherical propagation Inlet and Extract sound at 3m is calculated based on uniform line source 4 0 Installation It is import...

Page 12: ...the unit using suitable screw fixings One bracket will be secured to the back of the unit as shown in Fig 1 the second bracket should be secured to the mounting surface as shown in Fig 2 Please ensure the brackets are level The unit can then be set onto the mounting surface with the lip of each bracket intersecting as shown in Fig 3 Ensure the system is level when fully mounted Fig 1 Fig 2 Fig 3 ...

Page 13: ...loor Mount The unit should be mounted on the Floor on a stable level surface Ensure the condensate connection at the bottom of the unit can be fitted to allow a minimum 5 degree fall to the internal drainage point Waterless Dry Trap Not Incl ...

Page 14: ...hroughout the dwelling this will assist in keeping pressure losses to a minimum A minimum straight vertical run of 750mm should also be used directly off each spigot where possible based on CISBE guidance Where it is not possible to continue throughout the dwelling in rigid 150mm diameter round pipe due to the void spaces available a conversion to rigid 220mm x 90mm flat rectangular ducting is rec...

Page 15: ...m dining room etc Air valves should be locked upon commissioning so that they are tamper proof Duct designs layouts should always be adhered to if provided The Domestic Compliance Guide Eng and Wales 2010 or relevant equivalent dependent upon local guidelines should be adhered to in terms of installation practices ...

Page 16: ...e to prevent the back flow of air into the HRV unit from the waste discharge system It is imperative that there is a gravitational fall from the unit to the discharge point ensuring that the water drains from the unit A minimum fall of 5 Degrees should be ensured throughout Drainage piping connections should be insulated if located in cold roof spaces NB Dry trap Not Incl must be fitted with a 10 ...

Page 17: ...left of the system as required for specific property types where required Step 1 Isolate the unit from the mains and ensure all supply circuits are disconnected Step 2 Disconnect the mains from the fused spur Inverted Front Standard Front A Filter Cassette B PCB Module C M10mm x 25mm Washer D M10mm x 16mm Screw E Wall Mount Plate F Blank Cable Panel ...

Page 18: ...mount bracket E Step 7 Pull the fan cables and sensor cables through the unit and connect the leads to their colour coded lead on the PCB module B Step 8 Push the PCB module B into the case and secure using the M10 screws D and washers C Step 9 Place the filters A back into the unit from the face of the unit marked INVERTED Step 10 On the face of the unit marked STANDARD fit the wall mounting brac...

Page 19: ...nsure that the screw holes line up to the inserts Step 5 With the duct connectors now fitted to the side of the unit the top plugs need to be fitted to the top of the unit There will be 4 of these in each box Step 6 On each side of the top plug there is a ring the ring on each side is a different diameter to the other The larger diameter fits in the centre holes and the smaller diameter fits in th...

Page 20: ...th current IEE wiring regulations A switch or circuit breaker must be used in the power supply circuit It should be in close proximity to the HRV unit and should be clearly marked as the disconnecting device for the HRV Unit Connecting to mains The aircycle 3 1 unit comes pre wired with 2m length of 4 core cable which should be connected into a fan isolation switch In turn a 3 core mains cable sho...

Page 21: ...20 V 3 1 300317 brookvent co uk 5 1 Wiring Schematic 5 2 Colour code for internal wiring connectors ...

Page 22: ... for the supply and extract fans within the unit These separate speed options allow one speed to be set for normal day to day operation I e Trickle and an increased speed to be set I e Boost that operates only when the Grey switch wire is triggered by a 230v boost signal such as a Wall Switch or Passive Infrared PIR Sensor If the Boost for either fan is required to be set it should always be set h...

Page 23: ...ces the total extract boost rate DO NOT ADJUST THE VALVES Commissioning is carried out to ensure that the required air flows are achieved throughout the property The volume airflow at each point should be measured using a suitably calibrated Airflow Meter anemometer this is should be fitted with an adapter hood to ensure all air is captured and measured by the device For the required airflow rates...

Page 24: ...24l s is achieved through the extract valves Do not adjust the valves only adjust the control on the unit Turn the Supply Boost down until the whole dwelling Boost rate i e 29l s is achieved through the Supply valves Do not adjust the valves only adjust the control on the unit 6 3 Humidity Control This potentiometer control is located on the front of the unit and can be adjusted by hand and can be...

Page 25: ...tat feature in the aircycle 3 1 The 15min boost over run timer control is located on the front of the unit and can be adjusted by hand and can be set between 0 mins and 15 mins by rotating the control clockwise to increase the over run timing 6 5 Frost Protection This is an automatic factory setting that causes the supply fan to turn off for 5 minutes every hour when it senses temperatures below t...

Page 26: ...ally responsive solenoid which operates on a linear scale between 20 Degrees Celsius No Summer Bypass and 27 Degrees Celsius Full Summer Bypass gradually increasing the amount of air directed around the Heat Recovery Core as the temperature of the extract air from the home rises thus comfortably regulating the indoor air temperature during warmer months This feature is factory set automatic and re...

Page 27: ...els required 7 1 Filter Replacement The filters of this HRV unit will usually need to be changed every 6 12 months depending on occupancy use and the type of environment the dwelling is located in I e urban rural and their associated levels of airborne pollutants It is recommended that the filters are checked every 6 months Replacement filters can be purchased online at brookvent co uk To change t...

Page 28: ...m with the MVHR heat exchange core removed Step 2 Remove the front door panel via its 4 screws Step 3 Remove both filters Step 4 Remove the heat exchanger from the unit by pulling the plastic strip running across the front of the heat exchanger Step 5 Carefully remove any dust from the heat exchanger with a household vacuum cleaner Do not attempt the clean the heat exchanger with any fluids Step 6...

Page 29: ...ing and remove the scroll assembly This Whole assembly should be returned to Brookvent Step 6 Place the new scroll assembly in the recess in the case and ensure the holes line up with the screw insert Fix the scroll assembly to the case Step 7 Re plug the connectors they are two different types so they cannot be mixed up Step 8 Re fit the end panel Step 9 fit the side plugs the long plug always fi...

Page 30: ...front of the heat exchanger Step 5 Plug the new sensor in place and screw it to the case care should be taken when handling the new sensor to avoid Electro static discharge damaging the sensor ensure you are earthed when handling Step 6 Carefully reinsert the heat exchange core into the unit Step 7 Reinsert both filters change if necessary and replace the front door ensuring all four screws are se...

Page 31: ...crew it to the case care should be taken when handling the new sensor to avoid Electro static discharge damaging the sensor ensure you are earthed when handling Step 7 Carefully reinsert the heat exchange core into the unit Step 8 Reinsert both filters change if necessary and replace the front door ensuring all four screws are securely fastened Also ensure the filter tabs on the front of the unit ...

Page 32: ...ssembly Step 3 Unplug all the leads the connectors are all marked to match up with their corresponding internal connections Step 4 Feed the mains cable from the replacement assembly through the unit and out the through the hole in the back plate Step 5 Connect all the cables back up ensuring to connect each cable to the correctly marked connector Step 6 Replace the assembly in the pocket and secur...

Page 33: ... this air using a highly efficient heat exchanger before expelling the waste air outside the home Simultaneously fresh air is drawn into the home filtered and warmed by the recovered heat and supplied into the habitable rooms such as bedrooms dining rooms and living rooms How your system is configured upon installation will influence how it can be operated at the user level Please ensure to refer ...

Page 34: ...boost the system meaning that when the occupier enters the room and turns the on the light the system is triggered into boost mode This is typically used in sanitary accommodation and bathrooms A double pole switch should be used The items detailed above are examples of the types of Automatic Control Options that are typically used in conjunction with the Brookvent aircycle 3 1 8 2 Typical Manual ...

Page 35: ...ified electrician 3 Check that the 5 amp fuse has not tripped blown This should only be completed by a qualified electrician 4 Check that all the spindles are in the full power position fans can take a few seconds to start up The system is constantly in Boost mode New houses can be quite damp with items drying out this can cause the inbuilt humidistat to activate Turning the internal humidistat up...

Page 36: ... and we will be more than happy to assist you Brookvent Brook House Dunmurry Industrial Estate Dunmurry Belfast Northern Ireland BT17 9HU T 44 0 28 9061 6505 It is important to retain this manual and make a copy available to any person using or working with maintaining the system Brookvent operate a policy of continuous innovation and improvement and thus reserve the right to alter product specifi...

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