Kair KHRV150/12RH Fault Diagnosis And F.a.q

Single room heat recovery ventilator, pullcord & humidistat

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Installation & maintenance instructions manual (12 pages)

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Kair Single Room

Heat Recovery Ventilator

Model:

KHRV150/12RH - Pullcord & Humidistat

Fault Diagnosis and F.A.Q

This is a step-by-step guide to resolving any issues your unit may have before getting in contact with

your installation company. Follow the guide from start to finish unless otherwise instructed.

www.kair.co.uk

Contents

Page

Content

2 - 4

Fault Diagnosis

Does the unit have power?

Does the unit manually boost?

Does the unit boost based on relative humidity?

Is my light sensor set up correctly?

5 - 11

Frequently asked questions

How do I clean the filters in my unit?

5 & 6

Cleaning the rear filters

Tell me more about the inside of my transformer

8 & 9

I've snapped my thumb wheel off my unit

10 & 11

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Summary of Contents for Kair KHRV150/12RH

Page 1: Table Of Contents
Kair Single Room Heat Recovery Ventilator Model: KHRV150/12RH - Pullcord & Humidistat Fault Diagnosis and F.A.Q This is a step-by-step guide to resolving any issues your unit may have before getting in contact with your installation company. Follow the guide from start to finish unless otherwise instructed.
Page 2: Does The Unit Have Power
Does the unit have power? ON = Main power. ON = Manual boost override. OFF = Automatic humidity control. Pullcord for manual boost control. Turn anticlockwise towards 20 to increase sensitivity (Fan on boost for longer). Turn clockwise towards 90 to decrease sensitivity (Fan on boost for shorter time).
Page 3: Does The Unit Manually Boost
Does the unit manually boost? Assuming the unit has been correctly installed, your transformer should have a red or green ‘power on’ light, depending on the model. To indicate the unit is in trickle mode, the transformer should have its ‘manual boost on’ light off. If both lights are on, pull the pull cord so that the ‘manual boost on’...
Page 4: Does The Unit Boost Based On Relative Humidity
Does the unit boost based on relative humidity? Assuming the unit has been correctly installed, your transformer should have a red or green ‘power on’ light, depending on the model. To indicate the unit is in trickle mode the transformer should have its ‘manual boost on’...
Page 5: Frequently Asked Questions
Frequently asked questions Cleaning the front filters The pictures below are shown with a demonstration unit. Once you are able to reach the main fan unit, open the front filter cover by gently pulling each cover in the direction marked by the arrow.
Page 6 The main casing can then be gently removed completely from the wall ensuring that the external cowl and smaller 125mm separator tube are not damaged or disturbed. Remove the larger filters from the sides of the unit situated between the rear fan and aluminium heat exchange unit. Care should be taken to ensure that they are not damaged or torn.
Page 7: Tell Me More About The Inside Of My Transformer
Proper maintenance will allow the fans to perform at their maximum efficiency to control the humidity levels within the room in which they are fitted. Proper maintenance will also prevent the fans switching to boost mode more frequently than is absolutely necessary. Washing the filters will also ensure a constant clean air supply.
Page 8: I've Snapped My Thumb Wheel Off My Unit
What is the light level sensor adjuster? This is the rheostat we used to adjust the amount of light the light sensor requires to go into boost mode. The sensor is factory set in the OFF position as this is preferred for most installations.
Page 9 Screw the tamperproof screw into the plastic with the tamperproof screw driver. Thread the screw into the broken spindle until attached. Do not remove the screw until you are certain it is secure to the plastic spindle. Pull out the screw bit and the broken spindle should follow with some gentle force.
Page 10: Other Frequently Asked Questions
Other Frequently Asked Questions The night sensor used to work but doesn't now - what's gone wrong? Light levels change with the seasons. Changing light bulbs or curtains can also have an effect. Ideally your night sensor should be adjusted twice a year for lighter or darker months. See our video guide for adjusting the night sensor.
Page 11 Can I slow down the unit? Put the fuse in the slow position. See page 7 What thickness of wall/length of ducting l can I install the unit into? Up to 2 metres for mildly affected rooms, using the 1m extension kits we supply. How do you drill through a metre thick wall? With a long drill bit.
Page 12 08451 66 22 50 Web: www.kair.co.uk Email: info@kair.co.uk Address: 6 Chiltonian Industrial Estate, Manor Lane, Lee, London SE12 0TX As part of our policy of continuous product development, Kair reserves the right to alter specifications without notice. Page Version: 20130731...