Vent-Axia LoWatt HR204 Скачать руководство пользователя страница 23 | Manualshive

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Vent-Axia LoWatt HR204 Скачать руководство пользователя страница 23

23

Replace fan

(section 11.4)

YES

Re-align

fan

either fan rotate

when powered?

Replace speed

select PCB.

NO

NO

NO

Are fans

free to

rotate?

Is the

fan fouling

on inlet

ring?

YES

Note

NO

YES

Did this solve
the problem?

YES

Does

Swap the problem

fan's connection to

the drive PCB with

the other fan's drive

PCB.

YES

NO

Does the

same fan fail to

run?

Replace

Replace problem

drive PCB

Replace fan

drive PCBs.

NO

YES

Did this solve
the problem?

Replace fans

FINISH

If the either fan does not rotate, check the entire
system and unit for correct installation. Check all
ducting outside and terminals for blockages.

The drive PCB can sense if the fan is not rotating.
When this happens, it will shut off the power to the
motor to prevent overheating. It will try powering the
motor again every few seconds until the problem is
resolved. This is characterised by the impeller jerking
every few seconds.

problem fan

12.0 Fault Finding

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Содержание LoWatt HR204

Страница 1: ...Please leave these instructions with the user Whole House Ventilation System with Heat Recovery User Installation Servicing Instructions LoWatt HR204 ABC...

Страница 2: ...ation 3 0 General Layout 4 0 Technical Data 5 0 Appliance Operation 6 0 Installation Requirements 7 0 Installation 8 0 Wiring Diagrams 9 0 Commissioning 10 0 Maintenance 11 0 Changing Components 12 0...

Страница 3: ...nd phase complies with the rating label 5 The LoWatt HR204 should only be used in conjunction with the appropriate Vent Axia accessories 6 When the LoWatt HR204 is used to remove air from a room conta...

Страница 4: ...st Out Fresh Air In Hot Stale Air In Warm Air Out Applicable only to products installed and used in the United Kingdom For details of the Guarantee outside of the United Kingdom contact your local sup...

Страница 5: ...upplied out to dry rooms 1 2 8 10 9 11 15 6 7 14 4 13 5 12 Fig 2 3 1 Heat exchanger 2 Fan fresh air in 3 Rating label 4 Fuse 5 Speed select PCB 6 Accessory switch connection 7 Dip switch for speed sel...

Страница 6: ...ed 6 10 13 21 35 56 75 Duct connections Condensate connection Electrical supply External fuse rating Internal fuse rating Filtration Appliance must be connected to an earthed supply Fig 4 SAP Appendix...

Страница 7: ...5 The unit has six speeds One of the lowest five can be selected for normal speed One of the top 3 can be selected for boost speed The performance curve chart gives the ventilation rates at each fan s...

Страница 8: ...boost Switch NBSW N m or al Bo t os Humidity Sensor HS6 Normal boost Pull Cord Switch PCSW CMSM control TIM2 timer The LoWatt HR204 can only be connected to external controls with an uncommitted rela...

Страница 9: ...ents must also be sited away from other flue terminals ventilators etc on the outside of the dwelling In addition there shall be adequate ventilation of the kitchen when a cooker hood is used at the s...

Страница 10: ...drawn back into the house 2 The duct work system should be sized and installed to minimise the pressure loss along it 3 Using larger diameter pipes and keeping the number of bends and fittings used t...

Страница 11: ...Minimum Front Clearance for servicing 250 280 Clearances HR205 Minimum Side Clearance MVHR 24 Minimum Side Clearance MVHR 24 Minimum Top Clearance for servicing 200 300 Minimum Front Clearance for se...

Страница 12: ...200 Minimum Side Clearance 5 Minimum Side Clearance 5 Clearances HR204 Minimum Bottom Clearance 100 Minimum Front Clearance for servicing 250 280 Clearances HR205c Minimum Side Clearance MVHR 24 Minim...

Страница 13: ...y until it discharges into the drain Fig 11 Remove bottom cover panel to access the fan speed settings condensate connection Condensate rear exit shown Side View Front Rear Condensate drain 15mm Rear...

Страница 14: ...set to the appropriate speed as determined by air flow required and duct system pressure see page 7 2 To change the speed settings of the fans change the position of the dip switches on the PCB The 5...

Страница 15: ...al Boost Switch NBSW or Pull Switch PCSW Common Boost Normal L Fan air out Fan air in SPEED SELECT 1 2 L N 1 2 3 4 5 6 7 8 Normal Boost 1 2 3 4 5 4 5 6 ON MOTOR CONTROL A B MOTOR SUPPLY A B 220 240V 5...

Страница 16: ...MOTOR SUPPLY A B 220 240V 50Hz MOTOR B CONTROL P C B MOTOR A CONTROL P C B CHASSIS N 16 8 0 Wiring Diagrams Fig 14 LoWatt HR204 Wiring CMSM controller CMSM Controller L N L Live in Neutral in Live to...

Страница 17: ...0 Wiring Diagrams 1 2 Fig 15 L Fan air out Fan air in SPEED SELECT 1 2 L N 1 2 3 4 5 6 7 8 Normal Boost 1 2 3 4 5 4 5 6 ON MOTOR CONTROL A B MOTOR SUPPLY A B 220 240V 50Hz MOTOR B CONTROL P C B MOTOR...

Страница 18: ...d adjust until the system is correctly balanced Note If the flow rates have been achieved with all the louvres nearly closed it may be possible to reduce the fan speed and re adjust the louvre setting...

Страница 19: ...seal Fig 17 The following cleaning and disinfection routine should be conducted every 6 months to maintain the efficiency and hygiene of the unit It should be carried out by a suitably qualified pers...

Страница 20: ...PPLIANCE Fig 18 4 Make a note of the connections between PCBs and motors 5 Disconnect the motor cables mains cable and boost switch cable Remove chassis and PCBs completely 6 Replace PCBs as necessary...

Страница 21: ...e to the fan 5 Remove the bracket and re fit to the new fan 6 Re assemble with the new fan in reverse order ensuring the cable does not foul the fan motor Check the electrical installation for earth c...

Страница 22: ...uit and Resistance to Earth Ensure all external controls are operating and are set to normal running Ensure that a mains electrical supply is available to the unit Refer to diagrams below to identify...

Страница 23: ...problem drive PCB Replace fan drive PCBs NO YES Did this solve the problem Replace fans FINISH If the either fan does not rotate check the entire system and unit for correct installation Check all du...

Страница 24: ...372737 Heat exchanger seals 4 off 372739 Outer door cover assembly Optional extras 370254 Humidity sensor HS6 370495 Normal boost switch NBSW 370278 Normal boost pull cord switch PCSW 2 3 4 5 6 7 8 9...

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