Zehnder Rittling ComfoAir E 350 Benutzerhandbuch

Cooling Ventilation FilteringHeating

ComfoAir E350

Manual for the installer

2 - EN

Foreword

Please read this manual carefully before operating

the unit.

With the help of this manual, you can install, commission

or carry out maintenance on the ComfoAir E in a safe

and optimal manner. The ComfoAir E is hereinafter

referred to as the “unit”. As the unit is subject to

continuous development and improvement, your unit

may differ slightly from the descriptions in this manual.

The following symbols are used in this manual:

Symbol Meaning

Point of attention.

Risk of compromised performance or

damage of the ventilation system.

Risk of personal injury.

CHANGED

SAME

Questions

Contact the importer if you have any questions or wish

to order a new manual or new ﬁlters. Contact details:

Information given in the Instructions for the user.

General information about the ventilation system.

Warranty and liability conditions

EC declaration of conformity.

Replacing ﬁlters in the unit.

Cleaning the valves and/or grilles in the ventilation system.

Use of the display on the unit.

Information given in the Manual for the service engineer.

Maintenance procedures.

Malfunction procedures.

Available service parts.

Extensive technical data.

This manual has been compiled with the utmost care. The publisher cannot be held liable for any damage caused as a

result of missing or incorrect information in this document.

Zehnder Group Sales International • Zehnder Group Deutschland GmbH

Almweg 34 · 77933 Lahr · Germany

T +49 78 21 586-392 •· F +49 78 21 586-406

sales.international@zehndergroup.com • www.international.zehnder-systems.com

EN - 3

Contents

Foreword .....................................................................................................................................................................................2

1 Safety instructions ........................................................................................................................................................................4

2 Installation conditions ....................................................................................................................................................................4

3 Transport and unpacking...............................................................................................................................................................5

4 Technical speciﬁcations.................................................................................................................................................................6

4.1 Conﬁguration of the unit ........................................................................................................................................................7

4.2 Connection diagram .............................................................................................................................................................8

4.3 Dimension sketch ...............................................................................................................................................................10

5 Installation procedures ................................................................................................................................................................11

5.1 Wall mounting.....................................................................................................................................................................11

5.2 Floor mounting ...................................................................................................................................................................12

5.3 Installation of the condensation drain ...................................................................................................................................12

5.4 Installation of the air ducts ...................................................................................................................................................13

6 Commissioning procedures ........................................................................................................................................................14

6.1 Overview of the display .......................................................................................................................................................14

6.2 Service menu .....................................................................................................................................................................15

6.3 Programming air speciﬁcations ............................................................................................................................................16

6.4 RF controls.........................................................................................................................................................................17

6.5 Explanation of VENTILATION SETTINGS menu .....................................................................................................................18

6.6 Explanation of REPLACE FILTER warning .............................................................................................................................18

6.7 Explanation of ALTITUDE menu............................................................................................................................................18

6.8 Explanation of TEMPERATURE menu ..................................................................................................................................18

6.9 Explanation of FANS menu..................................................................................................................................................18

6.10 Explanation of UNIT SPECIFICATION menu .........................................................................................................................19

6.11 Explanation of the BALANCE SETTING menu.......................................................................................................................19

6.12 Explanation of ANALOGUE 0-10 V menu (standard) and RF SETTING (optional) ....................................................................19

6.13 Explanation of the PREHEATER menu .................................................................................................................................19

6.14 Explanation of the SYSTEM TEST menu ..............................................................................................................................20

6.15 Explanation of RESTORE TO FACTORY SETTINGS menu ....................................................................................................20

6.16 Explanation of control methods............................................................................................................................................20

7 Available accessories..................................................................................................................................................................21

8 Available controls........................................................................................................................................................................22

9 Quick installation guide ...............................................................................................................................................................23

4 - EN

1 Safety instructions

■Always comply with the safety regulations

in this document. Failure to comply with the

safety regulations, instructions, warnings

and comments may lead to personal injury

or damage to the unit.

■Always observe the local building,

safety and installation guidelines of the

municipality, utility companies or other

authorities;

■Always connect air ducts with a minimum

length of 900 mm to the unit before

connecting the power supply to prevent

contact with the rotating fans.

■After installation, all parts that could lead

to personal injury are safely out of reach

behind the casing. The ComfoAir cannot be

opened without using tools.

■It is not permitted to modify the unit or

any of the speciﬁcations contained in this

document. This may result in personal injury

or reduced ventilation system performance.

■Installation, commissioning and

maintenance must be carried out by a

certiﬁed person or company, unless stated

otherwise. If this work is carried out by

unauthorised persons, it may result in

personal injury or reduced performance of

the ventilation system.

■Always unplug the power cord before

starting any work on the unit. Using the

unit with the casing open may result in

personal injury. In this case, make sure

that no conductive or rotating parts can be

touched.

■Static charge can damage the electronics.

When working with electronics, always take

protective measures to prevent electrostatic

discharge, such as wearing an antistatic

wristband.

■If the power cord is damaged, it must be

replaced by the manufacturer, the service

engineer or a qualiﬁed person to avoid

risks.

2 Installation conditions

■Connect the unit to a 230 V~ 50 Hz power supply.

Any other mains connection will damage the unit;

■The unit is designed for use in residential areas only.

The unit is not suitable for commercial use, e.g. in

swimming pools or saunas. Installation in an industrial

environment can damage the unit;

■Check whether the installation area will remain within

the permissible temperature range throughout the

year.

The permissible temperature of the installation area is

given in the section “Technical speciﬁcations”;

■Zehnder recommends that the unit is not installed in

spaces with higher-than-average humidity (such as

a bathroom or toilet). This prevents the formation of

condensation on the outside of the unit.

■Check whether the electrical installation can

cope with the maximum capacity of the unit. The

maximum capacity is given in the section “Technical

speciﬁcations”.

■Check whether the installation area of the unit has

sufﬁcient room for the following aspects:

- The air duct system including dampening material

around the unit;

- Carrying out maintenance activities in front of the

unit (at least 1 m);

- The condensation drain below the unit;

- Wiring additional options (optional);

- The power connection of the unit.

4 - EN EN - 5

3 Transport and unpacking

The permissible storage and transport

temperature

is -20°C to +50°C.

Treat the unit with care during transport

and unpacking. Make sure the packing material is

disposed of in an environmentally friendly manner.

Checking the delivery

Contact your supplier immediately in case of damage

or an incomplete delivery. The delivery should at least

include:

■The unit: check the identiﬁcation plate to ensure that

you have received the correct unit type.

■Mounting bracket;

■Documentation;

■Connector set;

■Protective cover;

■Condensation drain adapter 32 mm pipe;

■Condensation drain sealing cap.

Information available on the identiﬁcation plate

Extension Meaning

ComfoAir E Product family name

350 Maximum airﬂow: 350 m3/h.

R The dwelling side is installed at the factory as

standard on the right-hand side of the unit.

L The dwelling side is installed at the factory as

standard on the left-hand side of the unit.

VL/VR The unit is supplied by the factory with a preheater

Check the unit type carefully. The location of the air

ducts cannot be changed in the ﬁeld.

6 - EN

4 Technical speciﬁcations

ComfoAir E350

Performance

Minimum airﬂow if preheater on 100 m3/h

Minimum airﬂow if preheater off 50 m3/h

Maximum airﬂow 350 m3/h

Heat efﬁciency level191%

Electrical connection details

Maximum performance/power without preheater2120 W 1.03 A

Maximum performance/power with preheater21580 W 7.38 A

Power supply 230 V ± 10%, single phase, 50 Hz

Cos φ0.34 - 0.51

Mechanical connection details

Dimensions of air connection (Ø) Internal: 160 mm

External: 190 mm

Dimensions of condensation drain (Ø) 32 mm

Material speciﬁcations

Casing Coated sheet steel

Inner surface EPP and ABS

Heat exchanger Polystyrene

General

Temperature range during transport and storage -20°C to +50°C

Temperature range moved air -15°C to +50°C

Temperature range of installation area >8°C (is not a range)

Relative humidity of installation area <90% (non-condensing)

IP classiﬁcation IP 41

ISO classiﬁcation B

Weight 50 kg

Filter class ISO Coarse and ISO ePM1 according to ISO 16890 (G4/F7)

ComfoAir E350

m3/h

Pst

cos φ

SFP

Wh/m3

Lw, supply

dB(A)

Lw, return

dB(A)

Lw, casing

dB(A)

1 150 25 22 0.38 0.15 49 36 34

2 200 50 36 0.42 0.18 53 40 38

3 245 50 46 0.44 0.19 56 42 41

4 250 100 59 0.46 0.24 59 44 43

5 300 100 73 0.47 0.24 62 47 46

6 350 100 90 0.48 0.26 65 49 49

7 250 150 71 0.47 0.28 61 46 45

8 300 150 86 0.48 0.29 63 48 48

9 350 150 104 0.49 0.30 66 51 50

0,17

0,22

0,27

46 49

100

150

200

250

0 50 100 150 200 250 300 350

Pst (Pa)

Qv (m³/h)

ComfoAir E 350

SFP (Wh/m³) Lw (dB[A]) qv_max

SFP in Wh/m³ calculated based on the details as per

EN13141-7: 2010

Cos φwith preheater deactivated

Lw in dB(A) reference 10ˉ¹² W

Casing radiation measured according to ISO 3741: 2010

Supply and extract air noise measured according to ISO

5135: 1997 (values are corrected for muzzle reﬂection)

1According to EN13141-7:2010

2At -15°C and maximum airﬂow.

EN - 7

4.1 Conﬁguration of the unit

B C

Identiﬁcation Part

A Identiﬁcation plate with all important details of the unit (not illustrated).

B Inscription with the air connections on the protective cover of the display.

C Power cable with 230 V plug (not illustrated).

D 2 adjustment caps.

E Input for connecting a bathroom switch.

F 4 connections for the air ducts.

G 2 condensation drains to drain the condensation of the warm extract air

H Front plate

I Main PCB behind the front plate and protective cover of the display.

J Touchscreen display for readout and programming of the unit.

K 0-10 V input

8 - EN

4.2 Connection diagram

Key: Meaning

Code Meaning Code Right-hand unit Left-hand unit

PE Green / Yellow B1 BYPASS MOTOR 11 extract air BYPASS MOTOR 20 outdoor air

N / BU Blue B11 BYPASS MOTOR 20 outdoor air BYPASS MOTOR 11 extract air

L / BK Brown or black M1 FAN 22 supply air FAN 12 exhaust air

WH White M11 FAN 12 exhaust air FAN 22 supply air

RD Red S1 RH + TEMP SENSOR 11 extract air RH + TEMP SENSOR 20 outdoor air

VT Violet S11 RH + TEMP SENSOR 20 outdoor air RH + TEMP SENSOR 11 extract air

GN Green S2 PRESSURE SENSOR 22 supply air PRESSURE SENSOR 12 exhaust air

YE Yellow S22 PRESSURE SENSOR 12 exhaust air PRESSURE SENSOR 22 supply air

GY Grey S3 RH + TEMP SENSOR 22 supply air RH + TEMP SENSOR 12 exhaust air

DISPLAY Display S33 RH + TEMP SENSOR 12 exhaust air RH + TEMP SENSOR 22 supply air

RF RF PCB S4 n/a TEMP SENSOR 21 outdoor air after

preheater

VV Preheater S44 TEMP SENSOR 21 outdoor air after

preheater

n/a

C1 0-10 V input

C2 Bathroom switch

C3 n/a

C4 Malfunction / dirty ﬁlter alert

(LED SAI Flash)

Output voltage at malfunction /

alert = 5 V

SA 0-3V

EP N L

*230V 50Hz

Switch

Schalter

Junction box

Externe Anschlussdose

Interrupteur

Boite de raccordement

Flash SAI 1-3V

EP N L M H

M H

261

542

*230V 50Hz

Switch

Schalter

Interrupteur

Junction box

Externe Anschlussdose

Boite de raccordement

Gelb/Grün

Blau

Braun

Schwarz

Grau

Jaune/Vert

Bleu

Brun

Noir

Gris

L *

M *

H *

Yellow/green

Blue

Brown, low preset

Black, middle preset

Grey, high preset

SA 1-3V

EP N L M H

*230V 50Hz

Switch

Schalter

Interrupteur

Junction box

Externe Anschlussdose

Boite de raccordement

A control panel must always be connected to operate the unit!

* Unplug the unit from the wall outlet to disconnect it from the power supply.

If the unit does not have a plug, use a switch according to EN 60335-1 (with switch-off

of all poles and 3 mm overvoltage category III).

8 - EN EN - 9

Front view of main PCB

10 - EN

4.3 Dimension sketch

10 - NL

4.3 Maatschets

850

235

725

490

123

560

160

190

280,5

265

250

100

180

200

CA300 CA400

Above view

Frontal view

Below view

Side view

Maßskizzen

10 - NL

4.3 Maatschets

850

235

725

490

123

560

160

190

280,5

265

250

100

180

200

CA300 CA400

10 - NL

4.3 Maatschets

850

280

725

490

123

560

160

190

280,5

265

250

100

180

200

CA300 CA400

Top view

Front view

Bottom view

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