Swegon CASA R3 Smart Leitfaden

R3_d_EN-t

Swegon Home Solutions

CASA®R3 Smart

Installation, commissioning and maintenance instruction

R3.051016

Swegon reserves the right to alter speciﬁcations.www.swegonhomesolutions.com

Installation, operation and maintenance instructions

for design engineers, installation engineers and service personnel

Contents

Important information ............................................. 3

1. General description............................................... 4

1.1 Enclosure .........................................................................4

1.2 Fans.................................................................................4

1.3 Filter ................................................................................4

1.4 Heat exchanger................................................................4

1.5 Temperature ....................................................................4

1.6 Protective safety functions ...............................................4

2. Installation............................................................. 6

2.1 Ventilation unit’s installation site ......................................6

2.1.1 Wall mounting..............................................................6

2.1.2 Ceiling mounting..........................................................6

2.1.3 Swegon CASA cooker hood directly connected to the

ventilation unit.................................................................7

2.1.4 Swegon CASA cooker hood separated from the

ventilation unit.................................................................8

2.2 Condensate discharge......................................................8

2.3 Ducts...............................................................................8

2.3.1 Commissioning the bypass for the kitchen ....................8

2.4 Sealing around duct penetration collars ...........................9

2.5 Electric and control cables..............................................10

2.6 Installation of the Smart control panel............................11

3. Commissioning.................................................... 12

3.1 To set the airﬂows..........................................................12

3.1.1 Setting the fan speeds ................................................12

3.2 Smart functions .............................................................12

3.2.1 Selection of Smart functions .......................................13

3.2.2 Automatic Home/Away/Boost system..........................13

3.2.3 Automatic humidity system.........................................13

3.2.4 Automatic air quality system .......................................13

3.2.5 Cooker hood function.................................................13

3.3 Sensor ...........................................................................14

3.4 Control functions with optional items of equipment ......14

3.5 Remote supervision (DDC)..............................................14

3.6 Damper motors..............................................................15

3.7 Re-heater (not Econo) ....................................................15

3.8 Anti-freeze protection....................................................15

3.9 Restoring factory settings...............................................15

3.10 To change the service code ..........................................15

3.11 Use..............................................................................15

4. Service.................................................................. 16

4.1 Service reminder ............................................................16

4.2 To open the ventilation unit ...........................................16

4.3 Filters.............................................................................16

4.4 Heat exchanger..............................................................16

4.5 Fans...............................................................................16

4.6 Other servicing...............................................................16

5. Alarms and troubleshooting.............................. 18

5.1 Alarm ............................................................................18

5.2 Troubleshooting.............................................................18

6. List of components ............................................. 20

7. Technical data...................................................... 21

7.1Fan outputs(EN 13141-4)................................................21

7.2Outputs of the components............................................21

7.3 Acoustic data.................................................................22

7.4 Electrical wiring diagram................................................23

7.4.1 Ventilation unit ...........................................................23

7.4.2 R3, CASA Jazz cooker hood and control panel............23

7.4.3 Control functions with accessories ..............................24

7.4.4 Supervision (DDC).......................................................25

7.5 Control diagram ............................................................26

7.6 Dimensions....................................................................27

7.7 Weights .........................................................................27

7.8 Ventilation unit codes ....................................................27

7.9 Accessories for installation .............................................27

8. Commissioning form........................................... 28

Warranty conditions ............................................... 29

EC Declaration of Conformity ................................ 30

R3.051016

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www.swegonhomesolutions.com

Important information

Qualiﬁed personnel only

Only qualiﬁed personnel should carry out in-

stallation, conﬁguration and commissioning.

Standards and requirements

The pertinent national standards and regula-

tions dealing with installation, conﬁguration

and commissioning must be followed if the

equipment is to operate correctly.

At the www.swegonhomesolutions.com ad-

dress (Toolbox > Find PDF) you will ﬁnd the

document “Project planning instructions for

ventilation”, in which power supply, sound,

airﬂows and duct system requirements are

presented.

Measurement and electrical work

If you carry out voltage tests, measure the

electrical insulation resistance at various

points or perform other remedial meas-

ures that could damage sensitive electronic

equipment, you must ﬁrst isolate the ventila-

tion unit from the electrical supply grid.

Surge protection

Swegon recommends that all ventilation units

equipped with Smart automatic control be

equipped with a surge protection device.

Earth fault circuit breaker

It is not certain that an earth fault circuit

breaker will operate faultlessly in combi-

nation with the ventilation unit, since the

unit's regulation and control equipment can

cause leakage currents. Comply with local

electrical safety regulations when you install

electrical equipment.

To open the ventilation unit for service

Always ensure that the ventilation unit’s

power supply has been isolated before you

open the inspection door! Wait a few min-

utes before you open the inspection door

on the ventilation unit so that the fans have

time to stop and air heaters, if ﬁtted, have

time to cool down.

There are no components inside the electri-

cal equipment cabinet that can be serviced

by the user. Leave the servicing or these

components to service personnel. Do not

restart the ventilation unit before you’ve

identiﬁed the cause of the fault and service

personnel have serviced the ventilation unit.

Drying laundry

A tumbler dryer of extract air type or a dry-

ing cabinet must not be connected to the

system due to the high moisture content in

the air it discharges. However, we recom-

mend the use of a condensing tumbler dryer

without duct connection.

Commissioning

Do not commission the ventilation unit until

all carpentry work that produces large quan-

tities of sanding dust or other impurities has

been completed.

The duct connection spigots of the ventila-

tion unit must be covered by lids while the

unit is being transported, kept in storage

and mounted at its ﬁnal location.

Make sure that the ventilation unit, ﬁlters

and ducts are clean and that there are no

loose objects in them before you commis-

sion the ventilation system.

Condensation

The surface temperature of the ventilation

unit can drop down to 12 °C during periods

of frost and depending on the moisture con-

tent of the air surrounding the unit, moisture

may condense on the surface. Consequently,

condensation should be taken into account

when choosing furnishings that are to be

installed in the vicinity of the ventilation unit.

NOTE! The manual’s original language is Finnish.

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1. General Description

The most important function of the ventilation system

is to ensure clean and fresh indoor air and to remove

moisture. The air in the home should be changed at

a continuous and sufﬁcient rate to ensure a pleasant

indoor climate and avoid damage to building elements

caused by dampness. The ventilation unit should be

stopped only while service work is in progress.

1.1 Enclosure

The ventilation unit’s enclosure class is IP 34 when the

inspection door is closed.

1.2 Fans

The Swegon CASA R3 is equipped with energy-efﬁcient

fans with EC motors, advantageous in that their speed

is variably controllable and their efﬁciency is high even

when they operate in the lower speed range. The power

supply and control cables of the fans have quick-ﬁt con-

nectors making the fans easily removable from the unit,

if required.

The fans can be controlled in four operating modes

from a Smart control panel or in three operating modes

from a compatible Swegon CASA cooker hood:

• Boost = A large airﬂow is used when the ventila-

tion requirement increases, e.g. for cooking, taking a

sauna, showering or drying laundry.

• Home = Normal airﬂow. Guarantees that there is

sufﬁcient fresh indoor air in the home, and that the

building construction is at its best.

• Away = Low airﬂow. Reduces power consumption

when the ventilation requirement in the home is

small.

• Travelling = Very low air ﬂow and lower supply air

temperature. Used when no one is present in the

home. (Can only be selected from a Smart control

panel.)

The unit’s weekly timer has four programs that can

switch in the various fan modes at the preset times.

On the unit with electric reheating, you can also select

the required temperature of the supply air. Even when

the ventilation unit is being controlled with the weekly

timer, it is always possible to change the fan mode from

a control panel or a cooker hood.

You can select an airﬂow boost time of 30, 60 or 120

minutes or continuous boost from a Smart control pan-

el. When the unit is controlled from a cooker hood, the

fan’s airﬂow boost time is 60 minutes. You can select a

damper open time of 30, 60 or 120 minutes.

1.3 Filter

The ventilation unit has class F7 ﬁne ﬁlters for the sup-

ply air and the extract air.

1.4 Heat exchanger

The ventilation unit is equipped with a rotary heat

exchanger that consists of a rotor whose aluminium

ﬁns form a large number of ducts through which the

air ﬂow passes. During the heating season, heat that is

stored in the ducts on the extract air side is emitted to

the cold air on the supply air side. The heat exchanger is

motor driven.

1.5 Temperature

The user sets the required value for minimum supply

air temperature, and the ventilation unit then strives to

reach this temperature if possible. Swegon recommends

that the supply air temperature is set between 15–20 °C

and the factory setting is 17 °C, which is sufﬁcient for

draught-free ventilation. The supply air temperature

should be 3–4 °C lower than the room temperature, so

that the supply air mixes fully with the room air.

Remember the following when setting the supply air

temperature:

• A high temperature setting will also increase the

ventilation unit’s power consumption.

• A low temperature setting, for example, 14 °C, can

cause condensation to collect in the system.

• The ventilation unit cannot cool the supply air with-

out an air cooler (duct coil), which is available as an

accessory.

R3’s intelligent summer function helps to maintain the

home’s indoor air comfort even during hot summer

days. Very economical comfort coolness can be pro-

duced almost free of charge by utilising the difference

between indoor and outdoor temperatures and the

heat exchanger intelligently. The heat exchanger takes

care of the cool indoor air during hot summer days and

cools the incoming outdoor air. At night the air passes

the heat exchanger and the home is cooled with fresh

outdoor air. This is managed by an advanced automatic

system.

1.6 Protective functions

The heat exchanger’s anti-freeze protection

R3’s reliable defrosting function guarantees continuous

and balanced ventilation in the home even during ex-

treme conditions. If there is a risk of the heat exchanger

in the unit freezing, the speed of the fans is changed

and the heated extract air prevents freezing inside the

heat exchanger.

The fans’ thermal overload protection

The fans have thermal overload cut outs, which stop

them if the temperature rises too high. The controller

also stops the fans if a serious malfunction occurs in the

ventilation unit. The protective function resets itself au-

tomatically when the temperature drops or the malfunc-

tion has been remedied.

Electric air heater

An automatic thermal overload cut-out switches off the

air heater if a fault arises. This protective device auto-

matically resets itself when the air heater has cooled

down.

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www.swegonhomesolutions.com

The overheating protection that requires manual

resetting can be reset by pressing a button located

inside the ventilation unit. The location of the button

is marked in the illustration below. When you press

the reset buttons and feel a click, the overtempera-

ture protection (thermal overload cut out) has then

been reset.

Temperature sensors

If a sensor fault is detected, the ventilation unit enters

restricted mode to prevent damage to the ventila-

tion unit. The functions related to the current sen-

sor in question are deactivated and the ventilation

unit works as well as possible. The ventilation unit’s

function returns to normal once the fault has been

corrected.

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2. Installation

2.1 Ventilation unit installation site

The temperature in the space where the unit will be

installed must be more than +10 °C. The ventilation unit

can be installed in a machine room, laundry room, store

room, etc.

The ventilation unit can also be installed in the kitchen

like a wall cabinet above the cooker and a Swegon

CASA Jazz cooker hood can be mounted directly to the

unit, i.e. connected to the duct connection spigot under

the ventilation unit.

The ventilation unit should not be secured to a wall that bor-

ders to a living room or a bedroom due to the risk of noise.

During installation, arrange electric and control cables to

make them easily accessible.

The ventilation unit can be mounted either on the wall

with a wall mounting bracket included in the supply or

on the ceiling with a ceiling mounting frame which is

available as an optional extra.

The unit should be mounted as near as possible to a wall

or ceiling. The space between the ventilation unit and the

wall/ceiling must be insulated to prevent the transmission

of sound through the wall behind the unit to the adja-

cent room.

2.1.1 Wall mounting

The wall mounting bracket is supplied together with the unit.

If the wall is composed of vertical studs and wall boards,

the wall must be reinforced with horizontal studs that

will support the weight of the unit. Swegon also recom-

mends that the wall be insulated with mineral wool or

similar insulation for preventing sound from propagat-

ing to other rooms.

1.Horizontal stud for the ventilation

unit’s mounting bracket

2.Acoustic insulation

1.Insulated wall

2.Horizontal stud

3.Wall mounting

bracket

Wall mounting bracket’s dimensions

If the wall is composed of vertical studs and wall boards,

the wall must be reinforced with horizontal studs that

will support the weight of the unit. Swegon also recom-

mends that the wall be insulated with mineral wool or

similar insulation for preventing sound from propagat-

ing to other rooms.

Screw the wall mounting ﬁrmly in horizontal posi-

tion onto the wall where a wall stud will support the

weight of the unit. Lift up the ventilation unit onto the

wall mounting bracket so that the ears on the bracket

engage in the corresponding notches at the top on the

backside of the unit.

The ventilation unit’s inspection door and heat ex-

changer can be removed to make it easier to lift the

unit. The fans can also be removed if necessary. See the

”Servicing” Section.

2.1.2 Ceiling mounting

The ventilation unit can also be mounted in a ceil-

ing mounting frame (available as an accessory) on the

ceiling.

Fasten the ceiling mounting frame in ceiling anchor

sleeves with four M8 threaded rods. The length of rods

must be adjusted so that they will be positioned approx.

15-20 mm under the inner surface of the ceiling mount-

ing frame. Install the ceiling mounting frame approx.

35-55 mm below a suspended ceiling.

The ceiling mounting frame must not be used as

part of a support structure for the ducts; the duct

support must be sufﬁcient even without the support ef-

fect provided by the ceiling mounting frame.

Fasten the locking hooks in mounting openings on the

ventilation unit’s top side by means of tension rivets.

Position the hooks so that the sharp point is facing the

rear side of the ventilation unit.

The hooks must absolutely not be secured with riv-

ets directly above the ventilation unit.

The points of the hooks face the rear part of the ventilation

unit and they are to be slipped into the unit’s notches before

you secure them with rivets.

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www.swegonhomesolutions.com

Hang the ventilation unit up in the mounting frame

so that the rear of the unit engages in the suspension

plate. Lift the ventilation unit up against the ceiling

mounting frame so that the locking hooks on both sides

engage into position. The unit is ﬁrmly secured if the

screw heads on the front part of the ceiling mounting

frame return to their original positions. The ventilation

unit can then be secured into position by screwing in

the locking screws to their end positions.

2.1.3 Swegon CASA cooker hood directly

connected to the ventilation unit

The Swegon CASA Jazz cooker hood can be mounted

directly against the ventilation unit, and in this case

the extract air duct should be connected directly to the

duct connection on the bottom of the unit. Secure the

cooker hood to the ventilation unit using the screws

supplied. The cooker hood is available in right-hand and

left-hand versions depending on the ventilation unit’s

model.

The ventilation unit can be controlled from the cooker

hood control panel.

The electric and control cables as well as the connection

for the cooker hood’s extract air are located under the

cover plates in the bottom of the unit.

1.Suspension plate

2.Locking hooks

3.Lock screw

115 m m

The fan’s

mounting screws

The kitchen airﬂow from

the cooker hood during

operation in the boosted

ﬂow mode

Acoustic insulation

The kitchen’s general

ventilation via extract air

∅125 mm

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2.2 Condensate discharge

As a rule, no condensate discharge connection is

needed under dry ambient conditions and in combina-

tion with a rotary heat exchanger. A certain humidity

load exists in homes and a condensate discharge line

should be connected to the ventilation unit, if consider-

able moisture is produced in the home.

Connect the discharge hose to the ventilation unit’s

condensate discharge connection (3/8” male threads).

The condensate must be channelled to a ﬂoor drain,

the water trap of a sink or the equivalent by means of

a tube or a pipe having an inner diameter of at least 12

mm. The tube must not be connected directly to the

sewer. The tube must not have a second water trap or

be run horizontally. The damming height of the water

trap should be at least 100 mm.

The condensate discharge connection is plugged

from the outside of the ventilation unit.Remove the

plug when you begin using the condensate discharge

connection. Check that the condensate discharge outlet

is not clogged and check its outﬂow by pouring water

on the bottom of the ventilation unit. The condensate

discharge connection is located on the rear of the unit

under the rotary heat exchanger.

The hose for removing condensed water is available

as an accessory (part number 502103). The hose has a

ready-made loop that serves as a water trap.

There is a metal water trap available as an accessory

(UVL).

2.3 Ducts

Install the ventilation ducts, sound attenuators, sup-

ply air diffusers, air intake grilles and exhaust air ducts

as shown in the ventilation drawings. To prevent the

propagation of sound, do not install the ducts directly

against structural building elements.

Insulate the ventilation ducts in order to reduce loss

of heat or cooling energy and to prevent water from

condensing on surfaces. In addition, it is advisable to

insulate the ducts to prevent the spread of ﬁre. It is of

greatest importance to insulate cold ducts without

gaps in the insulation, so that moisture cannot

condense.

2.3.1 Commissioning the bypass for the kitchen

The ventilation unit has extra duct connections for

extract air from the cooker hood on its top and bottom

sides. The extract air from the cooker hood ﬂows di-

rectly out through the unit’s extract air fan and does not

2.1.4 Swegon CASA cooker hood separated from

the ventilation unit

The compatible Swegon CASA cooker hood can be

mounted separately from the ventilation unit, and in

that case the extract air is conveyed from the cooker

hood to an extra duct connection on the upper side of

the unit. The duct between the cooker hood and the

ventilation unit must be installed in such a way that

makes it possible to clean it.

The ventilation unit can be controlled from the cooker

hood control panel.

∅100 mm

∅125 mm

The kitchen’s general

ventilation via extract

air register

The kitchen airﬂow from

the cooker hood during

operation in the boosted

ﬂow mode

Acoustic insulation

Important

The 100 mm duct connection from the ven-

tilation unit should be ﬁtted with a taper

piece for transition to 125 mm as near to

the unit as possible.

Important

Check whether the ventilation unit has

been supplied in the right-hand or left-

hand version to make certain that you are

connecting the ventilation ducts to the

correct duct connection spigots on the unit.

Check the ventilation plans to make sure

that the duct connections are correctly in-

stalled. See also the dimensional drawings

in the Section entitled: “Technical data”.

200 mm



3/8" male thread

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www.swegonhomesolutions.com

described in the Section entitled: ”Service”.

• Open the ventilation unit’s inspection door and re-

move the heat exchanger guard plates. Withdraw the

heat exchanger from the unit.

• Remove the screws of the guard plate that covers the

duct connection.

• Pull out the cover together with its insulation.

Push the heat exchanger back into the unit, secure the

guard plate with screws at its position and close the

inspection door.

2.4 To seal around duct penetration collars

It is important to the preserve the tightness of the

vapour barrier at the duct penetration collars. We

recommend the use of a mounting frame designed for

the ventilation unit (accessory, PR085YP) for sealing the

vapour barrier in the loft ceiling beams.

Cut up the openings with approx. 10 mm smaller diam-

eter than that of the ducts. Secure the mounting frame

in the ceiling with screws through the holes on the

sides. The plastic ﬁlm of the vapour barrier should either

be stretched and fastened between the mounting frame

and the structural element of the building, or be taped

tightly against the mounting frame.

The thickness of the insulation and the nature of the

surface layer of the ventilation ducts vary depending on

insulation material, climate zone and national standards

in force. For this reason, Swegon does not offer any rec-

ommendations for insulation thickness. Most manufac-

turers of insulation material offer calculation programs

for the calculation of sufﬁcient and correct insulation.

In renovation projects, it is advisable to examine the

existing ducts to determine whether they are sufﬁciently

and correctly insulated. Insulating in the right way is

necessary for the ventilation unit to operate correctly. If

the ducts are uninsulated, even across a small area,

there is a high degree of risk of condensation and

indirect damage.

pass the heat exchanger. For this reason, the kichen’s

general ventilation must not take place via the cooker

hood. On delivery, both of the duct outlets that bypass

the heat exchanger are ﬁtted with covers.

If the duct connection designed for bypass from the

kitchen is used, the duct between the cooker hood and

the unit must be installed in such a way that makes it

possible to clean it.

Dismantle the cover panel on the top of the venti-

lation unit

How to open the ventilation unit and remove the guard

plates are described in the section entitled: ”Service”.

• Open the ventilation unit’s inspection door and re-

move the guard plates in front of the heat exchanger.

• Remove the screws of the guard plate that covers the

duct connection.

• Pull out the cover together with its insulation.

• Secure the guard plates for the extract air fan and

the heat exchanger with screws at their positions and

close the inspection door. The duct connection spig-

ots are now ready for connection to ducting.

Dismantle the cover panel on the bottom of the

ventilation unit

How to open the ventilation unit as well as how to

remove the guard plates and heat exchanger are

Important

The bypass for a kitchen is intended for use

when the airﬂows from the cooker hood/

kitchen are boosted. The kitchen’s general

ventilation must take place via the extract

air duct. If the general ventilation takes

place continuously via the cooker hood, the

supply air and extract air ﬂows through the

heat exchanger will be out of balance, and

this will lower the efﬁciency and impair

the ventilation unit’s anti-freeze protection

functions during the winter.

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The maximum length of the modular cable in the system

is 40 metres. If the modular cable is lengthened within

some building element (such as a wall), the cable should

be lengthened in a ∅ 20 mm dia. tube as a precaution

in case the need should arise to replace it in the future.

When installing the unit, make sure that you provide

adequate access to the connector of each cable (loose

ones as well), e.g. for servicing and adjusting the unit, if

and when the need arises.

In multi-storey buildings, a control panel can be used as

a so-called hand-held micro terminal in conjunction with

service and installation work.

The connection of possible accessories is described in

the wiring diagram in the Section entitled: ”Technical

data”. The cables for accessories are not included in the

supply.

The supply air duct should be ﬁtted with acoustic insula-

tion along the stretch between the unit duct outlet and

the sound attenuator, so that fan sound will not be

propagated out into the room.

In general, ventilation ducts should be insulated in the

following manner:

• Insulate outdoor air ducts run through warm spaces.

• Exhaust air ducts should always be insulated in ac-

cordance with national regulations. See separate pro-

ject planning instructions (for example Fire resistance

classiﬁcation requirements).

• Insulate supply air ducts in cold spaces.

• Insulate extract air ducts in cold spaces.

• If the air inside the duct is colder than in the sur-

roundings; the insulation should be protected by a

vapour barrier.

2.5 Electric and control cables

A 1.5 m long cable with earthed plug-in contact is ﬁtted

to the ventilation unit for measuring the voltage. The

cable extends from the top of the unit. The mains plug

serves as the ventilation unit’s main switch and it should

be connected to an electric socket at an easily acces-

sible spot. For power required, see the Section entitled:

“Technical data”.

There is a modular cable for control on top of the

ventilation unit. There is a modular cable for the cooker

hood located under the cover plate at the bottom of the

ventilation unit.

Important

Even small gaps in the insulation impair the

sound attenuation and bring about a risk of

condensation and consequential damages.

Important

Before commissioning the ventilation sys-

tem, check that the ventilation unit, ﬁlters,

condensation drain and ducts are clean and

that there are no loose objects inside them.

The ventilation ducts should be cleaned

regularly and always when the home is

renovated.

Important

It is absolutely forbidden to operate the

ventilation system during the construction

period or if dust-raising work is carried out.

Before installing the unit, the ducts should

be blanked off with covers to prevent the

entry of impurities.

Important

If any further electrical wiring is required,

only a qualiﬁed electrician shall be allowed

to carry out this work.

The electric and control cables are located

on the upper side of the ventilation unit.

Make sure that the electric cable can

be connected to a wall outlet without

obstruction.

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