Enervent Fenix 60 User manual

FENIX

PLANNING, INSTALLATION AND

OPERATION INSTRUCTIONS

Kipinätie 1, 06150 BORGÅ FINLAND

Phone +358 207 528 800, fax +358 207 528 844

www.enervent.fi

2006_1

OVERVIEW

MODEL

Before you begin reading, confirm the model of your appliance.

These instructions cover the following models:

Fenix 60

Fenix 85

Fenix 120

____________________________________________________________

EXPLANATION OF THE MARKS AND NUMBERS

60 Fan efficiency 105 W

85 Fan efficiency 130 W

120 Fan efficiency 185 W

All models are equipped with a built-in electrical heater 1000 W.

On all models the duct connections are Ø 160 mm.

Inside the air handling unit there is a sticker with the model details . Fill in below this data

to have it for future reference e.g when you require spare filters.

INTRODUCTION

All Fenix ventilation units have been designed for continuous year round use. In Finland

the Enervent appliances have been installed in small premises and detached houses for

over 20 years. The popularity of the appliances is increasing year by year. Using

knowledge gained over the years, it has been possible to make the Fenix range more and

more user-friendly.

The Fenix range is the result of long-term product development. It is extremely versatile

and variable.

With the help of this manual it is possible to install the Fenix unit with common functions

yourself. We recommend that installation of ventilation units with special functions and

extra equipment be carried out by a qualified electrictian.

If in doubt, we recommend that a qualified ventilation engineer performs the installation

work.

Before any maintenance on the appliance is carried out, please read the warning on the

next page!

GU AR AN TE E

Enervent Oy Ab provides a two (2) year product guarantee on the Fenix range. The

guarantee covers the repair work with the necessary spare parts. Repair work will be

carried out at the factory premises in Porvoo, Finland or as agreed.

The guarantee is not valid if the unit has been incorrectly installed, poorly maintained or

mechanical damage has resulted from improper use. This guarantee does not

compensate for losses indirectly caused by the use of the appliance, troubleshooting,

reinstallation after the repair or transportation.

Retain the receipt as proof of purchase, and for the start date of the guarantee period.

 
4 
TABLE OF CONTENTS 
 OVERVIEW.......................................................................................................2 
MODEL .........................................................................................................................2 
EXPLANATION OF THE MARKS AND NUMBERS.....................................................2 
INTRODUCTION...........................................................................................................3 
G UAR A NTE E ................................................................................................................3 
TABLE OF CONTENTS................................................................................................4 
WARNING.....................................................................................................................5 
OPERATING PRINCIPLE.............................................................................................5 
 
PLANNING........................................................................................................6 
PLANNING OF THE DUCT SYSTEM...........................................................................6 
EXHAUST AIR CLASSIFICATION OF LIVING AREAS...............................................8 
TARGET VALUES FOR AIR FLOWS...........................................................................9 
KITCHEN VENTILATION..............................................................................................9 
 
INSTALLATION........................................................................................10 
INSTALLATION PARTS.............................................................................................10 
STANDARD PARTS .........................................................................................10 
EXTRA EQUIPMENT........................................................................................10 
ADDITIONAL EQUIPMENT ..............................................................................10 
INSTALLATION..........................................................................................................11 
FENIX DIMENSION DRAWING (WALL MOUNTING), LEFT HANDED.....................13 
FENIX DIMENSION DRAWING (CEILING MOUNTING), LEFT HANDED.................15 
CHANGING THE HANDEDNESS...............................................................................16 
HEAT INSULATION OF THE DUCT SYSTEM...........................................................18 
 
OPERATION..................................................................................................19 
 
MAINTENANCE..........................................................................................20 
TO BE OBSERVED DURING OPERATION...............................................................21 
HEAT RECOVERY EFFICIENCY ...............................................................................21 
FAILURE SEARCH AND TROUBLE SHOOTING......................................................22 
 
TECHNICALDATA................................................................................23 
CHARACTERISTICS FENIX 60..................................................................................23 
FAN EFFICIENCY RATES FENIX 60.........................................................................24 
CHARACTERISTICS FENIX 85..................................................................................25 
FAN EFFICIENCY RATES FENIX 85.........................................................................26 
CHARACTERISTICS FENIX 120................................................................................27 
FAN EFFICIENCY RATES FENIX 120.......................................................................28 
T ECHN IC AL D AT A LT R-3-EC AND LTR-3-ECE.......................................................29 
 
WIRINGDIAGRAMS............................................................................30 
WIRING DIAGRAM.....................................................................................................30 
 
 
EU DECLARATION OF CONFORMITY .....................................................................31 
 
 
 

WARNING

After opening the service hatch, wait for two (2) minutes before starting any maintenance

work! Although the unit’s power supply is cut when the hatch is opened, the fans still rotate

and the electrical heater is still hot for a while.

There are no user-serviceable parts within the control panel, contact a service technician

for service and repairs of this part of the unit.

Check the cause of any fault before restarting the unit!

OPERATING PRINCIPLE

The Fenix ventilation unit is based on recuperative heat recovery. This is achieved with a

cross flow plate heat exchanger through which the supply air and the exhaust air flow.

Heat from the exhaust air is tranfered through an aluminium plate to the supply air.

The efficiency varies from 52 % to 64 %, depending on the proportion and volume of

supply air and exhaust air (the heat from the supply air fan is taken into account).

Thanks to its high efficiency, the Fenix saves heating energy at the same time as it

provides excellent indoor air quality; therefore it pays for itself in a relatively short time.

PLANNING

PLANNING OF THE DUCT SYSTEM

It is recommended that the task of dimensioning the duct system is given to a professional

engineer.

The ducts must be large enough, min. Ø 100 mm diameter (approx 4”) to allow a

sufficiently low air speed. In particular the outside feed and the waste air ducts need to be

large. The size of the outside air duct, waste air duct and the outside air grille must be Ø

160 mm diameter (approx 8”). Do not fit an insect net behind the grille.

Use only approved materials, such as galvanised spiral-weld or plastic pipe, for the duct

system. Air valves which are suitable for mechanical ventilation must be used. Air valves

with a diameter of 100 mm or larger are to be used for supply and exhaust air.

The outside air should be taken, if possible, from the north side of the building or from a

shady place where temperature variations are moderately small.

The waste air should be led out about 90 cm above the roof ridge. Use insulated factory

made fittings. A cover or cowl must be installed on the end of the waste air duct to prevent

rain water from entering the duct system.

To enable duct cleaning, a sufficient number of access hatches should be placed in the

duct system. The access hatch locations should be marked, for example on the roof

trusses, to make finding them easier.

The exhaust air valves should be placed in the following locations: Toilet, kitchen,

washroom, bathroom, en-suite, clothing storage room, cleaning cupboard and utility room.

The supply air valves should be placed in the following locations: bedroom, living room,

separate dining recess, hobby room, dressing room and sauna. We recommend that a

supply air valve is installed in the innermost corner of the sauna. The air flow from the

valve should be directed above the stove.

The air from a room with supply air will flow through gaps under the doors or “free flow”

door grilles to areas with exhaust air. Normally a 20 mm gap under the door is sufficient,

except in the sauna where a 100 mm gap is required. Additional supply air can be ducted

directly to wood-burning fireplaces (in the sauna) from the outside. The duct must be

closable.

Garages or workshops must not be connected into the ventilation equipment of the house;

they should have their own extractor system or independent heat recovery unit.

The cooker extractor hood should not be connected into the house ventilation system.

(Excess steam and grease will cause blockage of the heat exchanger).

A fan assisted drying cabinet can be connected indirectly to the exhaust valve (drying

cabinet - valve attachment) which allows air from both the room and the cabinet to exhaust

from the same valve. The volume through the exhaust air valve has to be at least 12 l/s.

Silencers. A silencer 900 mm long is recommended for the exhaust duct, a silencer 600 or

900mm long is recommended for the supply air duct.

Distances between waste air and fresh air openings. Usually fresh air is taken from a

north facing wall and the waste air is led out from the roof or opposite wall.

Other methods are acceptable, so long as they fall within the guidelines laid out by the

Building Regulations (Example: D2: Finland 2003, extract shown below), or in accordance

with your local directives and regulations governing indoor climate and building ventilation.

The diagram shows how to determine the distance between the outside feed into the

house and the waste from the house.

Waste air - fresh air feed,

in the horizontal plane.

Waste air above

the fresh air feed,

in the vertical plane.

Waste air below

the fresh air feed,

in the vertical plane.

Measurements are in meters

246 8 10 12 14 16 18 20

cl 1 and 2

cl 3

cl 4 under 0,3m³/s

cl 2

cl 4 under 1,5m³/s

cl 4 under 3,0m³/s

cl 4 under 6,0m³/s

cl 4 under 0,3m³/s

cl 4 under 1,5m³/s

cl 4 under 3,0m³/s

cl 4 under 6,0m³/s

EXHAUST AIR CLASSIFICATION OF LIVING AREAS

The leading of waste air from a building is based on the following, exhaust air

classification

Class 1 Exhaust air which contains few impurities. The impurities are mainly from

people or structures. Air is suitable for return air and transfer air.

Class 2 Exhaust air which contains some impurities. The air is not used as return air of

other premises but can be lead for example to the toilet and washing room as

transfer air.

Class 3 Exhaust air from premises where high humidity, processes, chemicals and

smells essentially lower the quality of exhaust air. The air is not used as return

air or transfer air.

Class 4 Exhaust air which contains ill-smelling or unhealthy impurities considerably

more than the acceptable contents of the indoor air. The air is not used as

return air or transfer air.

Examples of exhaust air class of living areas

Class 1 Office rooms and small adjoining storage spaces, customer service and

teaching premises, meeting and business premises which are non-odorous.

Class 2 Living rooms, dining recesses, coffee kitchens, shops, warehouses of office

buildings, dressing rooms and restaurant premises where smoking is forbidden.

Class 3 Toilets, washing rooms, saunas, apartment kitchens, distribution and teaching

kitchens, copying premises of drawings.

Class 4 Professionally used fume cupboards, grilles and target exhaust air from

kitchens, car garages and driving tunnels, handling rooms of paints and solvent,

dirty wash laundries, store rooms of waste food, chemical laboratories, smoking

rooms, hotel and restaurant premises where smoking is permitted.

(Finland's building regulations D2 2003)

TARGET VALUES FOR AIR FLOWS

Target values for air flows in the living areas.

EXTRACT AIR

Kitchen 20 l/s

Bathroom 15 –17 l/s

Toilet 10 –12 l/s

Clothing room 3 –4 l/s

Hobby room 0,7 l/s, m²

Dressing room 2,0 l/s, m²

Washroom 15 –17 l/s

Cleaning cupboard 4,0 l/s, m²

Utility room 15 –17 l/s

SUPPLY AIR

Living room 8 –17 l/s 0,5 l/s, m²

Bedroom 5 –8 l/s 0,7 l/s, m²

Sauna 8 –17 l/s 2,0 l/s, m²

Separate dining recess 0,5 l/s, m²

Hobby room 0,7 l/s, m²

Dressing room 2,0 l/s, m²

KITCHEN VENTILATION

A normal cooker hood is installed over the kitchen stove. The hood should be used only

when cooking. It is still necessary to install an extract vent, connected into the general

ventilation system. The extract air volume should be 20 l/s. The cooker hood should not be

connected to the Fenix ventilation unit.

If needed the cooker hood can be connected to the Fenix ventilation unit exhaust air duct,

for instance in high-rise buildings where it is difficult to install a separate duct for the

cooker hood. Use of separate cooker hood or a combination of a cooker hood and an

extractor is recommended to ensure sufficient suction effect.

INSTALLATION

I NS T AL L AT I ON P AR T S

STAND ARD PARTS

1. Fenix ventilation unit

2. Wall mounting bracket

3. MCC control panel

EXTRA EQUIPMENT

4. Spare filter EU5

ADDITIONAL EQUIPMENT

5. Mounting plate for ceiling installation

6. Fine filter EU7 cassette

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