Echipament de Ventilatie Cu Recuperare Monocameral

8/12/2019 Echipament de Ventilatie Cu Recuperare Monocameral

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Gleaning

The Kair KH RV1 50 has two filters either side of the faceplate and these need tobe checked approx 4 times a year.

lf dirty open the filter covers in the direction indicated by the arrow, remove thefilters and wash in warm soapy water, replace when dry. There is no access tothe fan or any electricaf components during this process.

Washing the filters will ensure a constant clean air supply and reduction ofhumidity levels will substantially reduce dust mite activity, pirticularly

of benefitto anyone in the household suffering from asthma-or certain respiratoryproblems.

l(alr-ENTILAIION LITilITED

ThE KAir" KHRV1 5OI12RHHeat Recovery Ventilator

A User Guidelf you have any questions or concerns regarding your

Kair Heat Recovey Ventilator p/ease call:

Kair Ventilation Ltd: 08451 66 22 40Or

Installer:

Address:

Telephone:

Installation date:

4



Light Level Sensor

A Light Level Sensor is included to prevent the fan from switching automatically to boost at night-time. This is auseful feature particularly if the Heat Recovery Ventilator is installed in a bedroom or bed-sii accommodation,ensuring noise is kept to a minimum.

The sensor is factory set in the OFF position as this is prefened for most installations. This means that theautomatic boost feature will operate if the humidity rises during the hours of darkness. To activate the lightSensing feature, (boost inhibited during darkness) turn the adjuster fully anti-clockwise, shown on page 2.

This should be an approximate setting for most installations depending on the location of the remotetransformer/humidity assembly in the room.

Fine tuning may be required for precise operation:-

Clockwise allows boost to operate during darkness.Anti-clockwise prevents boost operating during darkness

A simple test for the conect setting is to trigger the boost feature via the humidity sensor in a darkened room.When switching the light on or off, the boost speed should cut in and out accordingly.

IMPORTANT ADDITIONAL SAFETY INFORMATION

Precautions must be taken to ensure that the siting of the fan does not cause back-flow of gases into the room from the open flue of gas or other fuel-buming appliances.

lf in doubt consult a qualafied gas appliance installer.

Heat Recovery VentilatorInstal lation Instructions

Safety First

The Heat Recovery Ventilator is a SELV (Safely Extra Low Voltage) ventilatorwhich operates at 12 volts AC.Under no circumstance s must this be connected dhectly to the mains supply Damage so caused is not covered

by the warranty. The low voltage used by the ventilator must be provided by the isolating transformer/humiditysensor supplied. A typical layout of installation is shown below.

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Note: The transformer unit (humidity sensor) should beconnected to the mains supply through a fused double

pole isolating switch maximum 5 amps.

The Heat Recovery Ventilator can be used in any room which has an outside wall open to fresh air. lt is

particularly useful in the bathroom, kitchen or laundry room where high levels of moisture are generated. lt canalso be used in the lounge, dining room or any bedroom to provide a fresh air supply to reduce dust-mite,eliminate mould growth or dampness and cond€nsation and to provide warmed fresh air.

lsolating Transformer (Humidity Sensor Unit).

The humidistat monitors the humidity in the room and automatically switches the ventilator fromcontinuous trickle speed to boost if the humidity exceeds the set point e.g. when using the shower,cooking or doing the laundry.

The humidity level can be adjusted by turning the thumbwheel (as shown on page 2) We recommendthat it is initially set to 60% which is suitable for most locations. Turning the thumbwheel clockwisedecreases the sensitivity (fan in boost for shorter time) and anticlockwise increases the sensitivity (fan in

boost for longer time), and is marker in 10olo stages.

To prevent tampering with the setting after instaflation, the thumbwheel can be removed by carefullypulling gently upwards. A blanking plate is supplied to seal the hole previously occupied by thethumbwheel.

lf installed in a shower or bathroom the transformer / humidistat must be out of reach of anyone using a

bath or shower. We strongly recommend installation by a competent electrician.

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Location of the TransformerlHumidity sensor unit

The Transformer/Humidity sensor may be mounted on the wall or ceiling.

Position the transformer/humidity unit at least 6" (150mm) from a corner to allow correct airflow over thehumidity sensor. Also, ensure the humidity sensor unit is not directly in the stream of the fresh aircoming in from the fan unit, as this wilr resutt in false sensing.

An ideal location is on the same wall, or one immediately adjacent which is in the stream of thestale/damp air being drawn into the side vents of the fan assembly.

Installation

c) You should site the ventilator close to the ceiling. This will ease the installation of the power cable andgive you the best position for air circulation.

Use the wall plate as a template, marking the core Drill hole, fixing holes and power cable entry position(which should be at the top, left of centre).

d) The ventilator is designed to be installed using a 6" (152mm) Core Drill system. The hole needs to be

angled downwards very slightly 1-2 degrees to the outside where the discharge cowlwill allow drainageoutside your home.

Drill the hole making sure that masonry does not fall and injure people or damage property below. Werecommend the Duradiamond Core Drillsystem, details of stockists available on 01324 814 035

easure the distance Xletween outside wall andhside plasterwork or tiles.

Measure the length of the hole between the outside brick face and inner plaster work. Now cut the outertube accurately to the required length. The length should be 4mm greater than the length of the hole Xbut no less than 254mm, otherwise the Heat Exchangerwill not fit. Carefully mark the tube all round andcut with a hacksaw and finish off with a file or good quality sand paper, to remove steps and swarf.

Place the tube in the hole and ensure that it slopes downwards towards the outside wall to allow anycondensation to run outwards. lf you have not achieved this you may have to pack the inside end of thetube upwards on final installation.

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Transformer / HumiditySensor Unit

Note: This part must not

be mounted in the interiorof a bath tub or showerbasin and must be sitedout of reach of a personusing a fixed bath orshower. lt should b alsosited away from anysource of water supply.

wiring lF lN DOUBT coNsuLT A QUALTFTED ELEcrRtctAN

Decide how you are going to run the wires from the transformer to the fan unit. All wiring must be inaccordance with IEE wiring regulations.

A S-amp two-core power cable is required to connect the fan assembly to the remote control.

A two core, 3-amp supply is required on the input mains connection. An earth connection is notrequired.

Pass the input and output wires through the cabte hole in the base plate of the remote control andfasten it in position. (SEE DIAGRAM ON PAGE 2). To comply with electrical safety regulations bothinput and output leads must be clamped to the unit using the saddle clamps provided.

Mains wiring for remote control and transformer:

Red or Brown wire to live terminalBlack or Blue wire to neutral terminal

Do not apply power to the transformer yet.

No earth is required to the ventilator in accordance with IEE wiring regutations for SELV circuits.

All wiring must be 1mm minimum, fixing securely to comply with IEE wiring regulations, if in doubtconsult a qualified electrician

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Outside installation of finisher ring

Place the split finisher around the hole in the outside brickwork with the split at the bottom. Use siliconmastic to secure the finisher to the wall.

This is best done from the outside but if access is not possible then the split finisher isdesigned to pass through the large tube.

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The Kai r,* KH RVl s ollzRHA User Guide

Dampness and Gondensation

We have all been made aware of environmental and ecological issues regarding

energy conservation in recent years, and encouragement has been given toinsulate our homes by installing double-glazing, loft and cavity wall insulation,and draught excluders. This has improved insulation at the cost of naturalventilation, consequently the water we generate in our day-to-day activities such

as breathing, washing, bathing, cooking eic, cannot escape so easily and manyproperties now suffer from condensation and mould groMh problems.

The Kairru KHRV150 Heat Recovery Ventilator

Your property has been chosen to be fitted with a Kair KHRV1 50 Heat RecoveryVentilator. Unlike traditional extractor fans which waste expensively producedheat the Kair KHRVl 50 contains two fans, one to extract damp stale air and the

other to replace it with fresh warmed air.

How much does it cost to run?

The KHRVl 50 is a low voltage machine (SELV) and running costs in the form ofelectricity consumption are approximately 30p per week*. However moistureladen air requires substantially rnore energy to heat and reducing moisturelevels combined with heat recovery will mean the equipment should save youmoney.

By contrast, an extractor fan used to remove the same amount of air would costan extra t2.50 per week just to rnaintain heating levels within the property**.

*Based on 90% trickle and 10% boost running ratios.

**Basedon temperatures of 20oC inside and OoC outside.

Control Features

The Remote Humidistat Unit could be described as the brains of the KHRVl 50and will control the humidity and airflows automatically. lt is also provided with arnanual override, (pull cord) which can be used to set the unit on boost andincrease the airflow as desired.

During installation the equipment can also be primed with a light sensor tooverride boost mode during the h0urs of darkness. This facility is usually offeredas an option when being installed in a bedroom.

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The ventilator runs continuously at trickle speed providing backgroundventilation. The two airflows pass through alternate layers of a highly efficientheat exchanger the incoming air collecting the transferred warmth without mixingthe airstreams. Should humidity rise above a preset level the machine will switchto boost mode rapidly exchanging the air to bring the humidity down. Havingachieved this the machine will switch back to normal trickle speed.

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Siting the Ventilator

a) Survey the property carefully and identify the best site for the ventilator. Condensation problems,dampness and mould growth are stimulated by high levels of humidity, the source of which can be the

bath/shower room, laundry room, kitchen or possibly a damp wall.

ldentlfy an area in the room with an outside wall which is clear of obstruction, both inside and out -Check for water and soil pipes, wiring and other obstructions before finalising your installation position.

b) Indicate the position of the core drill hole on the inside wall. lf possible, mark it s position on the outsidewall too. See if they look right. Remember that the Heat Recovery Ventilator is unique in that it bothextracts stale, damp air and blows in warmed fresh air. Make sure that steam from vour cooker/hob orappliance is not blown away from the fan.

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Follow the line diagram below to make the correct connections between the fan assembly and thetransformer/humidity sensor, and wall plate.

Place the fan assembly and front cover through the wall plate and push home. Apply power to thesystem and check operation. Conduct a srnoke test to ensure the extract fan is running. Check that thefront filters are in place and screw the frontcover to the wall plate with the screws provided.

NOTE: lf the unit has automatically switched to boost due to high humidity in the room, the pull cordswitch will have no effect until the humidity drops below the preset level:

IMPORTANT: The pull cord manually switches the fan unit from trickle to boost. lf the pull cord option isnot required, when the installation is cornplete remove the cord ensuring that the switch is in theTRICKLE position. This is confirmed by the LED shown on page 2, being extinguished.

The fan's continuous trickle speed has been factory set. However, if it is found that the fan is audible atthis setting, it is possible to reduce the trickle speed still further, Remove the lid of the controt box, andmove the fuse link from fast trickle to slow trickle position (see diagram below). Always replace the fusewith one of the correct type and rating.

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Inside installation of the finisher ring

Proceed as follows:

i) Push the large tube through the hole so it extends some 50mm beyond the face of the outsidewall.

ii) Apply silicon around the rear face of the split finisher -do not compress the adhesive.

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iii) Grip the finisher in your right hand, (palm uppermost) at the left hand end of the split w1h theadhesive side facing you and the split at the top. Pull back the right hand end of the split alongyour right arm with your left hand. Push the finisher right through the large tube and let it expandagain. Don t let go

With your right hand, place the inner flange on the outside of the large tube. Move your fingersin an anticlockwise direction until the finisher is pushed fully onto the tube - see below.

iv) Then, pull the tube and finisher back towards the room making sure that the split remains at thebottom. Carefully pull the finisher into the gap between tube and brickwork. Press the adhesivegently against the wall, compressing the adhesive somewhat. Then pull the tube into the roomleaving the finisher in place. Ensure that the finisher does not fall.

v) Now manipulate the finisher to expand it outwards and increase it s internal diameter as muchas possible. This will assist the re-entry of the tube. Compress the adhesive fully against thewall to hold it in position.

Fit the outside cowl to your prepared length of tube using PVC adhesive such as "Bostik" PVC Pipeweld or similar. This is available from most builder's merchants, (other types of silicon adhesive willprobably work just as well). Place the adhesive in an even layer around the inside diameter of the tubeat the end that you did not

cut.Place

the outside louvres vent on the end of the tube and allow the glueto set before handling it again Wipe off any excess adhesive on the outside of the cowl.

It is important for the correct operation that the smaller diameter tube is the correct length. This tubeconnects the extraction fan housing to the outside cowl and separates the two air streams. The correctfitting of this tube is critical to the efficient operation of the ventilator. To achieve this, whatever lengthhas been cut off the outer tube, the exact same length MUST be cut off the inner tube.

Try to cut it as evenly as possible with minimum off set. File or otherwise finish your cut end to removeany offset and swarf.

Mounted on the heat exchanger is a round plastic baffle which secures the air intake filters. Theextraction fan adjacent to these filters go€s to the outside wall. Use the PVC weld adhesive to stick thesmall tube you have cut to length onto the end flange of the extract fan and allow the adhesive to set.Protect the front cover at all times from dirt and scratches.

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k) Now fit the wall plate to the wall. The wall plate is marked top on the front face. lf the sleeve on the rearwall plate does not fit into the drilled hole, carefully open up the hole in the plasterwork until the wallplate will fit flush against the wall and is central in the drilled hole. (Use the remnant piece of largediameter tube as a template to ensure it is central). Mark out and drill the screw holes and chisel out agroove for the wiring from the cable entry hole (top left) upwards to the ceiling (or in the direction you

have determined for the transformer or rernote control). Fit screw plugs into the screw holes.

Fit the wall plate onto the open end of the large tube with the outside cowl. Measure the distance fromthe back edge of the wall plate to the other end of the tube. The tube should not extend beyond theoutside wall finisher.

Use the PVC weld adhesive to stick the wall plate to the outside tube. Ensure that the outside cowl isthe right way up (louvres pointing downwards to avoid rain ingress and the louvres are level to the wallplate). Push the outside cowl/tube/wall plate assembly into the hole in the wall. Make sure that top iscorrectly positioned and pull the four core cable through the cable hole, check that there is a smalldownwards gradient in the tube (see section f). Screw the wall plate to the plate to the wall ensuring thatit is level with the ceiling. lt is important to do this now in order to accommodate the angle of the tube inthe back of the wall plate before the qlue sets.

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Echipament de Ventilatie Cu Recuperare Monocameral

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