Envirovent Energisava250 User manual

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01 Introduction

You are about to install a product that is designed to outlast

the life-cycle of the building. Once installed the unit will operate

continuously for 5 years and beyond without a major service.

Please therefore ensure that this product is treated with care

and installed properly i.e. for the life of the building. If the unit

is mishandled you might break it! This invalidates the warranty.

And remember, if you have any problems please call our

dedicated Technical Team. We are always pleased to help and

in an emergency will come out to site quickly, completely free

of charge.

Thank you for choosing EnviroVent

The fastest growing ventilation company in the UK

HOTLINE: 0345 27 27 810

Due to our policy of continuous innovation and improvement EnviroVent

reserves the right to alter products specication and appearance without

notice.

AFTER INSTALLING THIS UNIT PLEASE PASS ONTO END USER

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02 About The Unit

The energiSava 250 is a whole house heat

recovery unit which works by continuously

extracting stale, moisture-laden air from the

“Wet Rooms” of the apartment or a house -

the kitchen, bathroom and en-suite rooms -

and ducts this to a central unit. This extracted

air passes through a high eciency counter-

ow heat exchanger before being ducted to

the outside. Fresh air is drawn into the unit

from outside, which is warmed by the heat

exchange cell and delivered into the living,

dining and bedroom areas.

EXPLODED VIEW

Drain

Spacers

Front shell

Heat recovery cell

Front cover

Mounting

plate

Wall

bracket

Spigot

Filter & Filter plugs

Fixing rods

Motor assembly

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03 Wiring Diagram

Commissioning -

Electrical Connections

The appliance must be earthed and a

double pole switch having a minimum

contact separation of 3.0mm must

be used to provide isolation for the

unit. All wiring must be completed by

a qualied electrician. This appliance

is suitable for 230V ~ 50Hz single

phase supply fused at 3 amps. The

appliance is supplied with a 4 core

mains exible cable.

If the supply cord is damaged, it must

be replaced by the manufacturer, its

service agent or similarly qualied

persons in order to avoid a hazard.

Emergency shutdown details - Unit to be isolated

from the mains by turning it o at the isolating switch.

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04 Technical Specications

Maximum Flow Rate 75 l/s (270m3/h) MAX* Protection Class IPX2

Heat Exchanger Counter Flow (Plastic) Supply Filter

Extract Filter

Fans EC (Electronically

Commutated DC) Spigot Ø 125mm

Electrical Supply 230V/1PH/50Hz Dimensions 560 x 635 x 260mm

Max Power Consumption 140W Weight 14kg

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05 Installation Instructions

IMPORTANT

Be sure to have read and understood these

instructions before beginning the installation

process.

PRE-INSTALLATION CHECK LIST

Make sure that the unit can physically t in to

the desired location.

The energiSava 250 unit should be

situated so that access for maintenance or

replacement of parts is possible. Make the

ductwork runs as short as possible. Having

the most direct route and using as few

bends as possible will reduce air resistance

and improve the eciency of the unit.

SAFETY AND RECOMMENDATIONS

• All wiring must comply with Building

Regulations and the current I.E.E. Wiring

Regulations (BS7671) or the equivalent

standards for your country. The nal

installation should be examined and tested

by a qualied electrician.

• Precautions must be taken to avoid the

back-ow of gases into the dwelling from

the open ue of gas or other fuel-burning

appliances.

• Make sure the mains supply complies with

the rating label for voltage, frequency and

phase.

• This appliance can be used by children

aged from 8 years and above and

persons with reduced physical, sensory or

mental capabilities or lack of experience

and knowledge if they have been given

supervision or instruction concerning

use of the appliance in a safe way and

understand the hazards involved. Children

shall not play with the appliance. Cleaning

and user maintenance shall not be made

by children without supervision.

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05 Installation Instructions

Control Options

Frost Protection

Boost Switch Live

Summer Bypass

Humidity Tracking

Boost - Remote Control

Control Options

Frost Protection

When the cell temperature in the unit falls below

3ºC the unit automatically warms the cell with

extracted air to prevent the formation of frost.

Boost - Switch Live

The energiSava 250 comes with Switch Live as

standard. It is an automatic function, sending

the unit to boost when the bathroom or kitchen

light is on.

Summer Bypass

The summer bypass helps reduce the air

temperature coming into the dwelling during the

summer months. It is an automatic function and

operates when the supply air temperature to the

property is above 25ºC.

Humidity Tracking

When the energiSava 250 unit senses a rise

in humidity, caused by increased moisture

generation such as through cooking or

showering, the extract and supply airows will

slowly begin to increase in direct proportion to

the increase in humidity.

It will then automatically track back down again

when humidity falls. This controls condensation

quietly and eciently.

Boost - Remote Control

The energiSava 250 unit also comes with a

remote control switch which can be used at any

time to send the unit to boost for 20 mins (see

pg 13).

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05 Installation Instructions

FIRST FIX - Installing ductwork and electrical supply

Important note: This unit is for wall or oor mount only. Ceiling mounting unit are

congured dierently and should be ordered separately.

1. Locate external terminations (supply and extract) in accordance with the latest addition of

the Domestic Ventilation Compliance Guide.

2. Ductwork within house Ø125mm - maximise duct size where possible. Make sure that

the ductwork is insulated in unheated spaces. Minimise exible duct.

3. Locate the mains supply within 1m of the location of unit. The position of the electrical

power supply or unit (a fused switched isolator) must not be mounted above or closer

than 1m to a cooker where it could be aected by excessive heat or moisture.

4. Make sure that there is room for the MVHR unit. The unit is designed to be horizontally

mounted in a kitchen or utility cupboard (on the wall). It can also be oor mounted in a loft

space with an additional*drainage kit. EnviroVent Part number KIT-CONDENSATE-ES250-2.

5. Also make sure that there is a free space at the front of the appliance for cleaning the lter

and carrying out maintenance on the appliance.

Installed example, RH unit shown.

A – No exhaust within 2m of air inlet

B – Inlet duct from atmosphere

C – Outlet duct to atmosphere

D – MVHR

E – Ducts to and from property

F – Condense Drain

Ducting Conguration

See page 9 for duct connections to

the unit/airow directions

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05 Installation Instructions

SECOND FIX - Installing the unit

1. Attach the wall bracket to a at stable

surface that is capable of bearing the

unit’s weight, 12Kg. Ensure that bracket is

positioned so that there is enough space

for the condensate drain and ducts to be

connected. Fixing kit provided.

2. Attach spacers x 2 with screws provided.

The spacers ensure that the unit tilts

forward to improve drainage. Use the

tie down cable if required to secured the

bottom of the unit.

3. Slide the unit onto the wall bracket and

attach ducting and drain.

Wall bracket

Pre xed bracket

on the back of the

energiSava 250 unit

Plugs x 5

Screws x 5

Wall t only

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05 Installation Instructions

SECOND FIX

Airow and drain tting - LH

Drains are factory tted. The units has either a LH or RH drain.

To atmosphere

From atmosphere

Extract from dwelling

Supply to dwelling

To atmosphere

From atmosphere

Extract from dwelling

Supply to dwelling

Airow and drain tting - RH

Wall

mount

Wall

mount

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