Vent-Axia 14120020 User manual

HR200WK

Through the wall

Heat Recovery Ventilator

Installation and Maintenance Instructions

PLEASE READ INSTRUCTIONS IN CONJUNCTION WITH

ILLUSTRATIONS. PLEASE SAVE THESE INSTRUCTIONS

Stock Ref No:

HR200WK 14120020

IMPORTANT SAFETY

INFORMATION

PLEASE READ THESE

INSTRUCTIONS

CAREFULLY BEFORE

COMMENCING

INSTALLATION.

1. Do not install this product in

areas where the following may be

present or occur:

• Excessive oil or a grease laden

atmosphere.

• Corrosive or flammable gases,

liquids or vapours.

• Subject to direct water spray

from hoses.

• Ambient temperatures higher

than 40°C and lower than -20°C.

• Possible obstructions that may

hinder access to or removal of the

unit.

2. All wiring must be in accordance

with the current IEE wiring

regulations BS7671, or appropriate

standards of your country.

Installation should be inspected

and tested by a suitably qualified

person after completion.

3. Ensure the mains supply

(voltage, frequency and phase)

complies with the rating label.

4. The unit should be provided with

a local isolator switch fitted with a

3A fuse capable of disconnecting

all poles and having a contact

separation of at least 3mm.

5. These units must be earthed.

6. Precautions must be taken to

avoid the back-flow of gases into

the building from the open flue of

gas or other fuel-burning

appliances.

7. This appliance is not intended

for use by persons (including

children) with reduced physical,

sensory or mental capabilities, or

lack of experience and knowledge,

unless they have been given

supervision or instruction

concerning use of the appliance by

a person responsible for their

safety.

8. Young children should be

supervised to ensure that they do

not play with the appliance.

9. CAUTION: In order to avoid a

hazard due to inadvertent resetting

of the thermal cut-out, this

appliance must not be supplied

through an external switching

device, such as a timer, or

connected to a circuit that is

regularly switched on and off by

the utility.

Warnings & Safety Information

INSTALLATION GUIDANCE

1. The installer is responsible for the installation

and electrical connection of the system on site. It

is the responsibility of the installer to ensure that

the equipment is safely and securely installed

and left only when mechanically and electrically

safe.

2. All regulations and requirements must be

strictly followed to prevent hazards to life and

property, both during and after installation, and

during any subsequent servicing and

maintenance.

3. Certain applications may require the

installation of sound attenuation to achieve the

sound levels required.

4. The unit must not be connected directly to a

tumble drier.

5. The supply air must be drawn from the exterior

of the property.

6. The exhaust grille should be located at least

600mm away from any flue outlet. The inlet grille

should be located 2000mm away from any flue

outlet.

Contents

Section Page

1.0 Introduction 4

2.0 Site Requirements 5

3.0 Installation 6

4.0 Electrical 8

5.0 Maintenance 10

Disposal

This product should not be

disposed of with household waste.

Please recycle where facilities

exist. Check with your local

authority for recycling advice

Int

oduction

1.1 Description (Fig. 1)

1. The HR200WK unit is a through the wall heat

recovery ventilator for use in kitchens and utility

rooms. It is designed for installation in external

walls having a thickness up to 335mm.

2. The unit’s twin impeller and heat exchanger

arrangement simultaneously supplies and

extracts air while transferring heat from the stale

exhaust airflow to the fresh intake airflow. This

provides up to 75% heat recovery from the stale

extracted air.

3. The power consumption for the unit is 20W

trickle speed, 60W normal speed and 130W

boost speed.

4. The three selectable speeds provide

ventilation rates of 60m3/h trickle, 110m3/h

normal and 220m3/h boost.

1.2 Ancillary Equipment

1. The HR200WK unit can be used in conjunction

with a range of ancillary equipment.

Controller: A range of controllers - see section

3.1 Controllers.

Humidity sensors:

Vent-Axia Ambient Response Humidistat (563550)

Ecotronic Humidistat (563532)

Vent-Axia Humidiswitch (563501)

Normal Boost Purge switch (5108454)

Fig. 1

2.0 Site Requirement

2.1 Information

1. The unit must be sited and connected by a

suitably competent person and be in accordance

with current UK Building Regulations and I.E.E.

Wiring Regulations (BS 7671).

2. The unit is intended for permanent connection

to the mains electrical supply.

3. Wiring to the unit in the UK must be via a

switched fused spur. The switched fused spur

must have a 3mm minimum contact gap in all

poles.

Fig. 2

4. Ensure that the mains electrical supply is

compatible with the rating label attached to the

product. Warning: this appliance is class 1 and

it must therefore be earthed.

5. The unit must be sited such that the ambient

temperature will not exceed 40°C.

6. Do not site the appliance in the vicinity of

excessive levels of airborne oil or grease.

7. If the unit is installed in a room containing a

fuel burning appliance, the installer must ensure

that air replacement is adequate for both

appliances.

8. The unit must not be installed at a level below

500mm from the floor.

9. The internal grille surround must be sited at

least 125mm away from any wall or projecting

surface.

10. The external grille of the unit must be sited at

least 600mm away from any flue of gas or solid

fuel appliances. This is to avoid back flow of

gases entering the room.

11. All safety regulations and requirements must

be strictly followed to prevent hazards to life and

property both during and after installation and

during subsequent maintenance or servicing.

12. Ensure the mains electrical supply is switched

off before commencing installation or

maintenance.

Installation

CG-1-1/01

3.1 Controllers

1. The HR200WK unit can be installed in

conjunction with a number of controllers.

150VA (563538): The 150VA transformer,

when used with a trickle/boost switch (455213),

allows for a trickle and boost speed to be

selected. Only terminals providing 140V or

higher should be used as the unit will not

operate reliably bellow 140V.

Ecotronic 1.5A controller (W300310):

Provides variable speed control and on off and

auto (sensor) modes.

Normal Boost Purge Switch (5108454):

The single gang switch enables the unit to be

manually switched from permanent trickle

ventilation Normal (Low speed) to either Boost

(Medium speed) or Purge (High speed).

3.2 Initial Preparation

1. Select an approved electrical control

arrangement for the HR200WK unit

(above).

2. After considering the site requirements

(Section 2.0), select a suitable site for the unit

and controllers and work out the cable runs.

WARNING: Before deciding on the final position

for the unit, check there are no buried cables,

pipes or obstructions on the outside wall.

Cable requirements: Suitably (Basec or Har)

approved four core cable of appropriate current

carrying capacity.

3. Install the cable runs and appropriate

controllers in conjunction with a fused connection

unit. Contact gap must not be less than 3mm.

4. Working from the inside, mark out the

position of the mounting hole - 250mm wide x

250mm high.

5. Carefully cut the holes in the inner and outer

brick courses to form a suitable aperture to

receive the unit. Ensure that this is level.

NOTE: Bricks will cut more easily and

accurately if a series of holes are drilled close

together along the marked lines.

Fig. 3

3.0 Installation

3.3 Installing the Appliance

From Inside

1. Remove the grille, heat exchanger, from the

unit. Note: it is not necessary to remove the

fan assembly from the housing to carry out the

installation.

2. Slide the unit into the mounting hole and

ensure that the flange around its open end is not

held off the mounting surface by the threaded

bushes located in the flange. Remove the

housing assembly and if necessary clear the wall

to suit these bushes and the screws which will

project through them.

3. Offer the housing to the mounting hole. As the

housing is being located in the mounting hole,

feed the electrical supply cable through the entry

hole (located on the top right hand side of the

housing). Note: for the purpose of condensation

drainage a prop is fitted to the underside of the

housing to cause it to adopt a downwards tilt to

the outside wall.

4. Fix the housing assembly in the wall using suitable gap

filler between it and the mounting hole. The housing can

also be fixed to the wall through the holes in the side

using suitable wood screws and wall plugs. Make good

around the internal and external wall faces.

CAUTION: Ensure the case does not distort

during fixing and making good.

From Outside

1. Offer the frame to the housing and mark its

fixing hole positions on the external wall face.

Remove the frame and drill the wall to accept

suitable wall fixing plugs.

2. Slide the frame over the housing and seal it

against the external wall face using silicone

sealant or mastic. Fix it in position with suitable

screws.

Fig. 4

Electrical

4.1 Electrical Connections

230V 50Hz 130W max

1. Wiring must be via a 3A fused switched spur

with a 3mm contact separation in each pole. The

wiring should be suitably (Basec or Har)

approved cable of appropriate current carrying

capacity.

2. Ensure that the mains power supply is

isolated prior to installation.

3. Remove the terminal cover after unscrewing

the retaining screw.

4. Remove the appropriate amount of sheath and

insulation from the supply cable and leads.

Connect the conductors of the cable to the

appropriate terminals in accordance with the

appropriate wiring diagram (Fig. 5, 6, 7, 8, 9).

NOTE: Refer to the fitting and wiring

instructions provided with the controller used.

The wiring diagrams shown here are not a

complete list of possible combinations.

5. Position the cable in the clamp such that the

sheath is held and tighten the cable clamp nuts

to secure the cable in position.

6. Replace the terminal enclosure cover and tighten

retaining screw. Replace the heat exchanger.

7. Replace the grille surround complete with the

removable grilles and tighten the retaining screws.

8. Switch on the mains electrical supply and

check the operation of the unit.

Fig. 5

Fig. 6

Fig. 7

Electrical

Fig. 9

Fig. 8

Maintenance

5.1 Cleaning the Unit (Fig.9)

1. In addition to removing odours, providing fresh

air and recovering heat, this unit extracts airborne

impurities such as dust, dirt and grease. These

gradually build up and detract from the efficiency

and appearance of the unit.

2. To ensure optimum performance, the unit

should be cleaned every 3 to 6 months or at

periods determined by the level of contamination

experienced and according to the following

procedure.

3. Isolate the mains power supply.

4. Release the catches on either side of

the grille surround and remove the two

filter holders.

5. Remove the filter from the filter holders.

6. Remove the grille surround after unscrewing its

retaining screws. Slide out the heat exchanger.

7. Wash the grille, filter and heat exchanger in

warm water using a mild detergent and dry

thoroughly.

CAUTION: Keep water away from all electrical

components and wiring within the unit.

8. Reassemble in reverse order ensuring the

filter and heat exchanger are seated correctly.

9. Switch power supply on and check the

operation of the unit.

5.2 Inlet Blank

1. An inlet blanking plate is provided with

the unit. With this in place the HR200WK

acts as an extract only fan.

2. Release the catch for the supply

side(left side) grille and remove the grille

3. Place the inlet blanking plate between

the grille and the filter

4. Replace the grilled with the blanking

plate in place. The unit will now operate as

an extract only ventilation unit

Fig.

Inlet blanking plate

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