enervent Piccolo User Manual

Ventilation unit with heat recovery

Planning, installation and operational instructions manual

Before installing and operating this unit,

please read this manual thorougly, and retain it for future reference.

www.enervent.

PICCOLO

Enervent Piccolo

2

TABLE OF CONTENTS

TABLE OF CONTENTS

OVERVIEW

TYPE MARKING 3
TYPE DESCRIPTION 3
FOREWORD 4
WARNING 4
OPERATING PRINCIPLE 4
DUCT HEAT INSULATION 5
KITCHEN VENTILATION 5

INSTALLATION
EQUIPMENT 5
INSTALLATION 6
DRAINING THE VENTILATION UNIT 10

USER GUIDE

STARTING THE UNIT 11
ABOUT VENTILATION 11
SUPPLY AND EXTRACT AIR CALIBRATION 12
USING AND CONTROLLING THE UNIT 13
HEAT RECOVERY DEFROSTING FUNCTION 14

MAINTENANCE

MAINTENANCE 15
BELT REPLACMENT 16
TROUBLE SHOOTING 17

TECHNICAL INFORMATION

TECHNICAL INFORMATION 17
HEAT RECOVERY EFFICIENCY RATE 18
DIMENSION DRAWINGS 19
CHARACTERISTIC CURVES 26
SOUND DATA 27
CONTROL CHART 30
WIRING DIAGRAMS 31

DECLARATION OF CONFORMITY 34

QUICK GUIDE TO THE VENTILATION UNIT AND COOKER HOOD

Copyright Enervent 2011. All rights reserved.

3

Enervent® Piccolo EN 2011_1

OVERVIEW

TYPE MARKING

Inside the ventilation unit is a type shield. Fill in the type shields data here to have it easily available when it is needed, e.g.
when buying new lters.

This manual covers the following units:

Enervent Piccolo eco ECE-ON

Enervent Piccolo eco ECE-OFF

Enervent Liggolo eco ECE

ilmastointilaite
ventilation unit

TYYPPI/TYPE:

SRJ.NRO/SERIAL NO:

W/ V/ HZ / A:

ENERVENT OY AB
KIPINÄTIE 1 06150 PORVOO
TEL [phone] FAX [phone]

TYPE DESCRIPTION

P

P

Piccolo

ON-models

The unit is on the wall.
The cooker hood is mounted
on the ventilation unit.

Piccolo

OFF-models

Cable 8 x 1.5 mm²

The unit is on the wall.
The cooker hood and the unit are
connected with a duct.

Unit mounted hanging from the ceiling.
The cooker hood and the unit are
connected with a duct.

Liggolo

P

Cable 8 x 1.5 mm²

P

Ener vent Piccolo eco ECE-ON

Unit frame Alternating

current fans

Control

Piccolo The unit is mounted on the wall.
Liggolo A lying version of Piccolo.
eco Ventilation unit with direct current fans.
ECE Ventilation unit with ECC05 control and 800 W electrical after heater.
ON The cooker hood is mounted directly on the unit.
OFF The unit and cooker hood are connected with a duct and can hence even be installed in separate
spaces.

Installation alternative

4

OVERVIEW

FOREWORD

All Enervent ventilation units are designed and manufactured for use all year round. In Finland the ventilation units have
been installed in houses and other spaces for over 20 years and their popularity is increasing each year. Because of the
knowledge and experience we have amassed during the years we can now manufacture more energy ecient and user
friendly ventilation units. The Enervent gr unit series is the result of a long product development. All unitsin the series are
very versatile and exible.

A unit with basic functions can be installed, by your self, with the help of this manual, but certain special functions and the
extra equipment should be connected by an electrician. We recommend that the installation is performed by a qualied
ventilation engineer.

WARNING

After opening the maintenance hatch wait two (2) minutes before starting the maintenance
work! The fans rotate for a while even after the power is cut and the ECE-model electical hea­tercan be searing hot. There are no user-serviceable parts inside the control panel or inside the
electrical cabinet, leave the service of these parts to a professional. It is important during trou­bleshooting not to turn on the power to the unit before being assured as to what the problem is.

OPERATING PRINCIPLE

The ventilation units are based on regenerative heat recovery. This is achieved with a rotating heat exchanger through
which incoming air and exhaust air ow in opposite directions. Aluminium foils within the heat exchanger transfer heat
from the exhaust air to the supply air. A characteristic of the regenerative heat exchanger is its high rate of heat recovery
(or eciency).

Enervent Piccolo and Liggolo units are linked with a cooker hood. The cooker hood is linked to the unit either directly or
with a duct. The air from the cooker hood is, with the help of the extract air fan, lead past the heat exchanger directly into
the exhaust air.

The eciency varies from 75 % to 85 %, depending on the proportion of supply air and exhaust air (the heat from the
supply air fan is taken into account). Thanks to their high eciency, the units save heating energy at the same time as they
provide excellent indoor air quality; therefore they pay themselves back in a relatively short time.

5

Enervent® Piccolo EN 2011_1

INSTALLATION

KITCHEN VENTILATION

The general ventilation in the kitchen is taken care of with a extract air vent in the ceiling.

DUCT HEAT INSULATION

Examples of dierent insulation alternatives:

1. Exhaust air duct in warm spacing (indoors, no insulation).

2. Supply air duct between ventilation unit and terminal equipment.

3. Waste air and outside air duct in warm spacing (indoors).

4. Exhaust air duct in the ceiling insulation.

5. All ducts in a cold attic. Outside air and waste air ducts must not be assembled directly above the steam
barrier. Both ducts require an insulation layer of 100 mm thick mineral wool.

1.

2.

isolation 20 mm
vapour proof surface

4.

5.

isolation
100 mm

3.

isolation 80 mm
vapour proof surface

EQUIPMENT

The Enervent Piccolo (eco) ECE unit delivery includes:

1. Enervent Piccolo (eco) ECE ventilation unit

2. Attachment brackets for kitchen cabinet integration laminate

3. Standard cooker hood

The Enervent Liggolo (eco) ECE unit delivery includes:

1. Enervent Liggolo (eco) ECE ventilation unit

2. Standard cooker hood

6

INSTALLATION

PICCOLO-MODELS:

Piccolo must be installed in a warm space (over +5°C) like a utility room or a laundry but not a garage (separate re area).
The unit can also be installed in the kitchen if the cooker hood is fastened in the unit.

If the unit is used to ventilate an area with a swimming pool, the unit must be drained. There is a drain outlet in the bot­tom of the unit (1/4” inner thread). At the time of delivery, the outlet is plugged.

PHASES OF INSTALLATION:

N.B.! To reduce the weight of the unit you can remove the heat recovery wheel before mounting the unit.

1. Mark and cut the holes into the ceiling.

2. Draw the ducts through the holes to the required height. The gaps between duct and steam barrier are then
sealed, with for instance ventilation tape.

3. Attach two suspension screws at an appropriate hight at a distance of 500 mm from each other. The unit has two
suspension ears. Make sure the wall material can bear the units weight. NOTE! If the cooker hood is directly at­ tached to the unit, the distance between the grease lter and the stove must be at least 500 mm*.

4. Lift the unit onto the wall and thighten the screws.

5. Connect the ducts to the tubes on top of the unit. It is recommended that silencers be installed to the extract
air and supply air ducts.

6. If the unit’s condensation drain is to be used, connect a pipe between the drain outlet and the nearest oor
drain or water trap of a sink. Connecting the unit directly into the sewage system is not allowed.

* NOTE! Make sure the distance satisfys the stove manufacturers and local authorities demands.

LiGGOLO-MODELS:

Liggolo must be installed in a warm space (over +5°C) like a utility room or a laundry but not a garage (separate re area).

If the unit is used to ventilate an area with a swimming pool, the unit must be drained. There is a drain outlet in the bot­tom of the unit (1/4” inner thread). At the time of delivery, the outlet is plugged.

PHASES OF INSTALLATION:

N.B.! To reduce the weight of the unit you can remove the heat recovery wheel before mounting the unit.

1. Mark and cut the holes into the ceiling.

2. Draw the ducts through the holes to the required height. The gaps between duct and steam barrier are then
sealed, with for instance ventilation tape.

3. Attach suspension screws at an appropriate place in the ceiling. The unit has four suspension ears. Make sure the
ceiling material can bear the units weight.

4. Lift up the unit to the ceiling and thighten the screws.

5. Connect the ducts to the tubes on top of the unit. It is recommended that silencers be installed to the extract
air and supply air ducts.

6. If the unit’s condensation drain is to be used, connect a pipe between the drain outlet and the nearest oor
drain or water trap of a sink. Connecting the unit directly into the sewage system is not allowed.

THE COOKER HOOD

Removal of the exhaust air from the cooker hood shall be done in accordance
to logal regulations. The exhaust air must not be lead into smoke canals that
are used as exhaust of cobustion gases from gas/wood stoves, wood/oil
burners.

Mounting the connection cu with damper:
The connection cu is inside the cooker hood when delivered.

The damper shaft A is put in the loop beneathe the damper lid, g 1.
Make sure the clutches get beneath the sheet metal edge.
The cu will snap in place.

INSTALLATION

1

7

Enervent® Piccolo EN 2011_1

INSTALLATION

NOTE WHEN YOU INSTALL PICCOLO ON-MODELS:

500/650

101

460.25

Mounting the cabinet integration laminate:

8

INSTALLATION

NOTE WHEN YOU INSTALL PICCOLO OFF-MODELS:

Some preparations need to be done on the cooker hood if it is not mounted on the unit.

90°

1.

2.

3.

1. Place the rubber lead through in the gap.

2. Bend the cover plate 90° along the perfora­ tion.

3. Place the cover plate on the hole in the
cooker hood and fasten it with the screws.

2

3

Installing the cooker hood

The cooker hood can be placed under the cup boards or embeded, g

2. Connect the cooker hood with a Ø 125 mm duct or hose. NOTE! When
using a hose, it must be installed straightened closest to the connection,
g 3.

9

Enervent® Piccolo EN 2011_1

INSTALLATION

NOTE WHEN YOU INSTALL LIGGOLO MODELS:

J.T 01/10/2008 1:7

KATTOMALLI ASENNUSKUVA 002

1A

C:

Paino kg

HyvMuuttPvmMuutosNo

LehtiMuutosPiir no

Nimitys

SuhdePvmFileHyvTarkPiirt

ValmisteOsan nimitysKplOsa

EN ISO 13920-AE

YLEISTOLERANSSIT

Hitsatut rakenteet:

Koneistetut osat:

ISO 2768-MK

LIGGOLO

INSTALLATION PICTURE

E-mail: [e-mail]

Tel. [phone]
Fax. [phone]

Kipinätie1, 06150 Porvoo

DIN 571
8x60
4 pcs

Ceiling attachment

Ceiling

Foamed plastic 5mm

Rubber plate

Rubber plate +
Metal plate

J.T 01/10/2008 1: 7

KATTOMALLI ASENNUSKUVA 003

1A

C:

Paino kg

HyvMuuttPvmMuutosNo

LehtiMuutosPiir no

Nimitys

SuhdePvmFileHyvTarkPiirt

ValmisteOsan nimitysKplOsa

EN ISO 13920-AE

YLEISTOLERANSSIT

Hitsatut rakenteet:

Koneistetut osat:

ISO 2768-MK

LIGGOLO RIGHT

INSTALLATION PICTURE

E-mail: [e-mail]

Tel. [phone]
Fax. [phone]

Kipinätie1, 06150 Porvoo

Ceiling

~80mm

~45mm

Condense water drain

10

INSTALLATION

DRAINING THE VENTILATION UNIT

All Enervent Piccolo units must be drained. The condense water drain must not be directly connected to a sewer! The con­dense water should be led in a falling, at least Ø15 mm pipe, through a water lock to a oor drain or such. The pipe must
at all times lie lower than the bottom of the ventilation unit. There must not be any longer horizontal sections on the pipe
and there mustn’t be more than one water lock. If the unit is equipped with more than one condense water draines, each
one must have a water lock of its own.

There is under pressure in the ventilation unit. We recommend a hight dierence of (A) 75 mm, or at least the under pres­sure divided with 10 in millimeters (i.e. 500 Pa under pressure -> 50 mm), between the unit drain and the water lock drain.
We recommend that the hight of backwater in the water lock (B) is 50 mm, or at least the under pressure divided with
20 in millimeters (i.e. 500 Pa under pressure -> 25 mm hight of backwater). Over pressure is prevailing in a duct coil. We
recommend the hight dierence (A) between the duct coil drain and the water lock drain is 25 mm. The water lock hight
of backwater (B) must be 75 mm, or at least the under pressure divided wit 10 in millimeters (i.e. 500 Pa under pressure ->
50 mm). The water lock must be lled with water before starting up the unit. The water lock might dry up if water is not
accumulated in it. If this happens, ait might get into the pipe and hinder water from entering the water lock, which might
result in an irritating ”bubbling” sound.

The size of the condense water drain is 1/4” (inner thread) in all Piccolo units.

A

B

11

Enervent® Piccolo EN 2011_1

USER GUIDE

USER GUIDE

STARTING THE UNIT

Before the unit is ready for use the following installations should take place:

- Assemble the unit and the cooker hood as stated in the chapter Installation in this manual. Check with a water
level to make sure that the unit is level, this is crucial for the drainage to work.

- Connect the drainage outlet with its own hose to an outow supplied with a water lock.

- Install the ducts (also for the cooker hood) and the silencers.

- Assemble the terminals on to the ducts.

- Provide the outside air duct with an outside air grating (N.B! the grating must not be provided with an insect net
because it is dicult to keep clean!)

- Make the roof pass-through. We recommend the use of a factory made, insulated roof pass-through.

- Insulate the ducts as instructed.

- Provide the unit with the appropriate power supply

Open the units maintenance hatch with the key provided when all the above mentioned installation work is done. Check
that the unit is clean on the inside, that there are no spare parts inside the unit and that the lters are clean. Close the
maintenance hatch carefully.

ABOUT VENTILATION

The ventilation unit should never be switched o. It is important to always ventilate with a high enough eect! If the ven­tilation is insucient the humidity indoors becomes too high and condensation can appear on, for instance, all the win­dows. A relative humidity of 40 - 45 % indoors is recommended (room temperature of 20 - 22°C). At these levels condensa­tion will not form and the humidity will be at a healthy level. The humidity of a room can be measured with a hygrometer.
When the humidity rises above 45 % one should increase the ventilation and when the humidity goes lower than 40 % one
should lower the ventilation.

Check regularly that the lters are not dirty! During winter the exhaust lter become dirtier more quickly than the supply
air lter. As a result of this the airow lessens, which leads to lowered humidity indoors. This also leads to lower temperatu­res. Check the lters each month! At each lter inspection, check that the heat exchanger is functioning correctly, meaning
check that it is rotating. Cover both the outside air intake and the waste air outtake if the unit is not to be used for a longer

period. This way you stop moist from condensing on e.g. the fans electric motors.