MTD ERV 350, ERV 365 User Manual

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MTD-ERV 350 / 365

Installation &

Operating Manual

All rights reserved.

Thismanualhasbeenproducedwiththegreatestcareandattention.Nevertheless,thepublisheracceptsnoliabilityfordamage resulting from missing or incorrect information in this manual.

II

Table of Contents

1

INTRODUCTION.............................................................................................................................

1

 

1.1

Foreword

..................................................................................................................................

1

 

1.2 CE Symbol ...............................................................................................................................

1

 

1.3 Warranty and Liability .............................................................................................................

1

 

 

1.3.1

General.....................................................................................................................

1

 

 

1.3.2

Warranty Terms.........................................................................................................

1

 

 

1.3.3

Liability......................................................................................................................

1

 

1.4

Safety........................................................................................................................................

 

2

 

 

1.4.1

Safety Precautions....................................................................................................

2

 

 

1.4.2 Safety Installations and Safety Measures.................................................................

2

 

 

1.4.3

Symbols Used ..........................................................................................................

2

2

INSTRUCTIONS FOR THE USER ..................................................................................................

3

 

2.1

Definition of Terms.............................................................................................................

3

 

 

2.1.1

Balanced Ventilation .................................................................................................

3

 

 

2.1.2

Heat Recovery..........................................................................................................

3

 

 

2.1.3 Bypass for Free Cooling ...........................................................................................

3

 

 

2.1.4

Frost Protection ........................................................................................................

3

 

 

2.1.5

Chimney Sweep Control ...........................................................................................

3

 

 

2.1.6

Moisture Recovery (Option)......................................................................................

4

 

2.2

Available Operating Aids...................................................................................................

4

 

 

2.2.1 CC Ease Operating Unit ...........................................................................................

4

 

 

2.2.2

3-position Switch (Option) ........................................................................................

5

 

 

2.2.3

Bathroom Switch (Option) ........................................................................................

6

 

2.3

Use of the CC Ease Operating Unit ..................................................................................

6

 

 

2.3.1

Setting Date and Time ..............................................................................................

6

 

 

2.3.2 Reading and Setting Comfort Temperature ..............................................................

6

 

 

2.3.2 Reading and Setting Ventilation Level ......................................................................

7

 

 

2.3.4 Switching Extractor Hood On and Off (Option)* .......................................................

8

 

 

2.3.5 Switching Supply and Exhaust Air Fan On and Off ..................................................

8

 

 

2.3.6

Setting Ventilation Programme .................................................................................

9

 

 

2.3.7 Setting Additional Functions via the P Menus ........................................................

10

 

2.4

Use of the Switch(es) (Option)........................................................................................

13

 

 

2.4.1 Setting Ventilation Using 3-position Switch(es).......................................................

13

 

 

2.4.1 Setting Ventilation Using Bathroom Switch(es).......................................................

13

 

2.5

Service by the User..........................................................................................................

13

 

 

2.5.1 Cleaning or Replacing Filters .................................................................................

14

 

 

2.5.2 Cleaning Valves (in the Home) ...............................................................................

15

 

2.6

Malfunctions .....................................................................................................................

15

 

 

2.6.1 Malfunction indication on the CC Ease Display ......................................................

15

 

 

2.6.2 3-position Switch with Malfunction LED..................................................................

15

 

 

2.6.3 What to Do in the Event of a Malfunction? .............................................................

16

 

2.7

End of Service Life ................................................................................................................

16

Table of Contents III

3

FUNCTION OF THE SYSTEM ......................................................................................................

17

 

3.1

Components of the Balanced Ventilation System.........................................................

17

 

3.2

Controlled Ventilation System.........................................................................................

17

 

3.3

MTD-ERV 350....................................................................................................................

18

 

3.4

Additional Options ...........................................................................................................

19

 

 

3.4.1 Ventilation via Extractor Hood* ...............................................................................

19

 

 

3.4.2 Preheater in MTD-ERV 350 ...................................................................................

20

 

 

3.4.3 Post-heater* in Duct System...................................................................................

20

 

 

3.4.4 CO2 Sensor* in the Home ......................................................................................

21

 

 

3.4.5 RH Sensor* in the Home ........................................................................................

21

 

 

3.4.6 Underground Geothermal Heat Exchanger*...........................................................

22

 

 

3.4.7

Chimney Sweep Control .........................................................................................

22

 

3.5

Technical Specifications .................................................................................................

23

 

3.6

Dimension Sketch ............................................................................................................

25

4

INSTRUCTIONS FOR THE INSTALLER ......................................................................................

26

 

4.1

Preconditions for Installation .........................................................................................

26

 

4.2

Installation of the MTD-ERV 350 .....................................................................................

26

 

 

4.2.1

Transport and Unpacking........................................................................................

26

 

 

4.2.2 Checking the Scope of Supply................................................................................

26

 

4.3

Wall Mounting...................................................................................................................

27

 

 

4.3.1 Connection of the Air Ducts....................................................................................

27

 

 

4.3.2 Connection of the Condensation Drain...................................................................

27

 

4.4

Commissioning the MTD-ERV 350 .................................................................................

28

 

4.5

Setting the Air Specifications .........................................................................................

34

 

4.6

Maintenance by the Installer ...........................................................................................

34

 

 

4.6.1 Inspection of Heat Exchanger and Fans.................................................................

34

 

 

4.6.2 Filter Cleaning, if Preheater is Fitted ......................................................................

36

 

4.7

Malfunctions .....................................................................................................................

37

 

 

4.7.1 Malfunction Indications on the CC Ease Display ....................................................

37

 

 

4.7.2

Malfunction Indications on the CC Ease Display Remedy .................................

38

 

 

4.7.3 Malfunctions (or Problems) without Indications ......................................................

43

 

4.8

Spare Parts .......................................................................................................................

44

 

4.9

Wiring Diagram: MTD-ERV 350 – LEFT-HAND Standard Version .................................

45

 

4.10

Wiring Diagram: MTD-ERV 350 – LEFT-HAND Luxury Version ....................................

46

 

4.11

Wiring Diagram: MTD-ERV 350 – RIGHT-HAND Standard Version...............................

47

 

4.12

Wiring Diagram: MTD-ERV 350 – RIGHT-HAND Luxury Version ..................................

48

 

4.13

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

49

IV Table of Contents

1 Introduction

This chapter contains general information on the MTD-ERV 350.

1.1Foreword

Apartfromthisgeneralchapter,thisoperatingmanual consists of:

A section for the user,

A section with technical specifications, and …

A section for the installer.

Read this operating manual carefully before putting the unit into operation.

-User Chapters 1 to 3.

-Installer Chapter 4.

This operating manual contains all the information required for safe and optimum installation, operation and maintenance of the MTD-ERV 350. In addition, it should serve you as a reference manual during service work so that this can be carried out safely and responsibly. The unit is subject to ongoing improvement and further development. Your MTD-ERV 350 may therefore differ slightly from the descriptions in this operating manual.

NOTE:

This manual has been produced with the greatest care and attention. However, no rights can be derived from this. Furthermore, the company reserves the right to change the contents of this operating manual at any time without prior notification.

1.2CE Symbol

TheunitismarketedunderthenameMTD-ERV 350. The MTD-ERV 350 is a balanced ventilation system with heat recovery for healthy, balanced and ener- gy-saving ventilation of living premises.

The year of construction of the MTD-ERV 350 is shown on the identification plate of the ComfoAir 350.

1.3Warranty and Liability

1.3.1 General

Our “General Terms and Conditions” in their latest wording apply to the MTD-ERV 350. The warranty period begins with commissioning, but not later than one month after delivery. This applies to material replacement and does not include labour. It applies only on proof of maintenance having been performed by a specialist company in accordance with our instructions.

1.3.2 Warranty Terms

The manufacturer's warranty on the MTD-ERV 350 is for a period of 24 months after installation, but up to a maximum of 30 months after the date of manufactureofthe MTD-ERV 350.Warrantyclaimscanbe made only for material flaws and/or design errors discovered during the warranty period.In the event of a warranty claim, the MTD-ERV 350 must not be dismantled without the prior written authorisation of the manufacturer. The manufacturer's warranty covers spare parts only if these have been installed by an installer approved by the manufacturer.

The warranty will be voided if:

The warranty period has expired;

The unit is operated without filter;

Parts not supplied by the manufacturer are installed;

Unauthorised changes or modifications are made to the unit.

1.3.3Liability

The MTD-ERV 350 has been developed and manufactured for use in "balanced ventilation systems". Use in any other way does not constitute an 'intended use' and can result in damage to the MTD-ERV 350 or in personal injury for which the manufacturer accepts no liability.

Themanufactureracceptsnoliabilityfordamageor injury resulting from the following causes:

Failure to observe the safety, operating and maintenance instructions contained in this operating manual.

Installation of spare part not supplied by the manufacturer.

The responsibility for the use of such spare parts lies solely with the installer.

Normal wear.

Introduction 1

I

1.4Safety

1.4.1 Safety Precautions

Observethesafetyprecautionsgiveninthisoperatingmanualatalltimes.Failuretoobservethesafety precautions,warnings,commentsandinstructions can result in personal injury or damage to the MTDERV 350.

Only an approved installer is authorised to install, connect,commissionandservicethe MTD-ERV 350 in a way other than that described in this operating manual.

The MTD-ERV 350 must be installed in accordance with the general local building, safety and installation regulations of the responsible public utility and other relevant safety authorities (such as the GIW - Dutch Institute for Certified Builders).

Follow the safety precautions, warnings, comments and instructions given in this operating manual at all times.

Store this operating manual in the vicinity of the MTD-ERV 350 at all times during its whole service life.

The instructions on the regular cleaning and/ or changing of the filters and air inlet/outlet valves must be strictly observed

The specifications contained in this document must not be altered.

All modifications to the MTD-ERV 350 are strictly forbidden.

TheMTD-ERV 350isnotsuitableforconnection to an AC power supply.

In order to ensure that the unit is inspected at regular intervals, we recommend that the user concludes a service contract.Your supplier can provide you with the addresses of authorised installers in your vicinity.

1.4.2SafetyInstallationsandSafetyMeasures

The MTD-ERV 350 cannot be opened without the use of tools.

It must not be possible to touch the fans with your hand. An air duct must therefore be connected to the MTD-ERV 350. The minimum duct length is 900 mm.

1.4.3Symbols Used

The following symbols are used in this operating manual:

Caution!

Danger of:

-Damage to the unit, or

-Physical injury to the user, or

-Impairment of the operating of the unit

if the instructions are not correctly followed.

2 Introduction

2.Instructions for the User

This chapter describes how you should use the MTD-ERV 350.

Congratulations, you are now the owner of the MTD-ERV 350,

the heat recovery unit from Zehnder Comfosystems. We wish you every comfort.

ing the summer months. Admitting the cool night air on warm days allows the room temperature in thehometobereduced.Thebypassfunctionsautomatically.You simply have to set your comfort temperature. See section 2.3.2 for further information. The MTD-ERV 350 then maintains this temperature as closely as possible.

2.1Definition of Terms

The MTD-ERV 350 has the following functions:

Balanced ventilation.

Heat recovery.

Bypass for free cooling.

Frost protection.

Chimney sweep control.

Moisture recovery (option).

Theseterms/propertiesaredescribedinmoredetail briefly in the following sections.

2.1.1Balanced Ventilation

TheMTD-ERV350isabalancedventilationsys- tem.Thisisthemosteconomicalandbalanced form of ventilation for homes. In a balanced ventilation system, polluted air from kitchen, bathroom, toilet and possibly even store room is drawn off and replaced by an equal volume of fresh air in the living room and bedroom.Air gaps under the doors ensure good air circulation in the home.This air circulation is literally balanced.

Ensure that these gaps are not covered by, for example, rubber door seal strips or high-pile carpets. This would prevent the system from operating optimally.

2.1.2 Heat Recovery

Apartfromensuringtherightbalancebetweensup- plyandexhaustair,theMTD-ERV 350alsooffersthe advantagethattheheatfromtheexhaustairisgiven off to the fresh, generally cooler outside air.This is made possible by the integral heat exchanger. In this way, roughly 95% of the discharged heat is recovered.The supply air can enter the rooms almost at room temperature. Draughts are now a thing of the past.

2.1.3 Bypass for Free Cooling

Apart from transferring heat from the exhaust air to the fresh, generally cooler outside air, the MTDERV 350 also offers the possibility of discharging thewarmerexhaustairdirectlyintotheatmosphere withoutpassingthrough the heat exchanger.This is madepossiblebytheintegralbypass.Thebypassis an additional circulating air duct that (temporarily) interrupts the heat transfer between the exhaust air and supply air.The cool outside air is then not preheated before it enters the dwelling.

The bypass is used particularly on warm days dur-

Ensure that the comfort temperature in winter is not set below the temperature you prefer.

If the comfort temperature in winter is below the preferred temperature, it is possible for the heating to be switched on with the bypass open. That is a waste of energy.

2.1.4 Frost Protection

The MTD-ERV 350alsohasafrostprotectionsystem. This protects the heat exchanger (or the optional combined heat and moisture exchanger, see section 2.1.6) from freezing.The risk of freezing exists in the winter months with moderate to heavy frost. The MTD-ERV 350 is equipped as standard with an automaticallyactivatedfrostprotectionsystemthat

- when there is a risk of frost - temporarily reduces the supply of outside air so that condensationintheexchangercannotfreeze.Apreheatercan also be installed in the MTD-ERV 350 as an option. Thishastheadvantagethatthebalancedventilation then remains operational.The inlet of cold outside air then no longer needs to be reduced.In addition, this option offers greater comfort as the supply air is again preheated to more or less room temperature. If there is no preheater installed in your MTD-ERV 350, ask your installer about the possibilities.

2.1.5 Chimney Sweep Control

TheMTD-ERV 350alsohasachimneysweepcontrol system.ThisisasystemthatpreventstheMTD-ERV 350 from creating an imbalance in the ventilation system, i.e. between the supply and exhaust air. The chimney sweep control system functions automatically.Thissystemblocksorresetsotherventilation control systems that could possibly create an imbalance in the ventilation system and that can be automatically switched on and off by the software. One example of this is that the supply and exhaust air fans cannot be switched off separately when the chimney sweep control system is active.

The chimney sweep control system is employed in dwellings with open fire, as here air can be drawn back by the draught of the chimney. If problems occur with the smoke discharge via the draught of the chimney, this situation must on no account be caused (or exacerbated) by the MTD-ERV 350.The chimney sweep control system then interacts with the existing ventilation control systems in such a waythattheMTD-ERV 350cannot(orcannolonger) cause an imbalance in the ventilation system.

Instructions for the User 3

2

2.1.6 Moisture Recovery (Option)

In addition to the heat transfer from the exhaust air to the fresh, generally cooler outside air, the MTDERV 350 also offers the possibility of transferring part of the moisture of the exhaust air to the fresh, generally dryer outside air. This is made possible by the (optional) integral moisture exchanger. The moistureexchangerissuppliedasacombinedheat and moisture exchanger and is not installed as an additionalexchangeralongsidetheheatexchanger oftheMTD-ERV 350.Thisexchangerthenhasanadditionalfunction,i.e.recoveringmoistureinaddition to the recovery of heat.In this way, up to 65% of the moistureisrecoveredfromtheexhaustair.Thesupply air can thus enter the rooms with an increased moisture content.

The MTD-ERV 350 is equipped as standard with only a heat exchanger. The exchanger with combined heat and moisture recovery can be ordered as an option.

2.2Available Operating Aids

The MTD-ERV 350 is equipped with the following operating aids:

CC Ease operating unit of the MTD-ERV 350.

Position switch (option) for setting the ventilation levels.

Bathroom switch (option) for temporarily setting the highest ventilation level.

These operating aids are described in more detail briefly in the following sections.

2.2.1 CC Ease Operating Unit

The MTD-ERV 350isoperatedusingtheCCEaseoperating unit.

TheCCEase(=ComfortControlEase)operatingunit is installed on the wall in the living room and communicates from there with the MTD-ERV 350.

The next section describes briefly what information can be read off.

4 Instructions for the User

MTD ERV 350, ERV 365 User Manual

Day and time

Automatic or manual ventilation

Warning to replace internal (I) or external (E) Filter

Actual ventilation position (with activated extractor hood, if applicable)

Air supply and/or air exhaust OPEN or CLOSED

Geothermal heat recovery, post-heater and/or bypass on

Comfort temperature setting (also indicates whether system is heating or cooling)

TheCCEaseoperatingunithasvariouskeysforoperatingandsettingtheMTD-ERV 350.Thesekeysareexplained below.

This key is used to switch the extractor hood on or off.

-Press for less than 1 second! ON.

-Press for longer than 1 second! OFF.

This key is used to switch the supply and/or discharge of air on or off.

-Press once! SUPPLY OFF (and EXHAUST ON).

-Press twice! SUPPLY and EXHAUST OFF.

-Press three times! EXHAUST OFF (and SUPPLY ON).

-Press four times! SUPPLY and EXHAUST ON.

This key allows you to read off or set the comfort temperature. - Press for less than 1 second! READ OFF.

- Press for longer than 1 second ! SET.

This key allows you to switch from AUTO to MANUAL ventilation. - Press for less than 1 second ! Set ventilation programme.

- Press for longer than 1 second! Set date and time.

These keys allow two functions to be set:

-In AUTO ventilation Select the ventilation level.

-In MANUAL ventilation Enter the setting values.

2.2.2 3-position Switch (Option)

Ventilation with the MTD-ERV 350 can also be operated by means of a 3-position switch.

Type 1

Type 2

A3-positionswitchcanbeusedtosettheventilation levels of the MTD-ERV 350.One or more 3-position switches can be installed in a home (for example, in the kitchen). The exact version may differ slightly from the images above.The following switch types are available:

Type 1Standard 3-position switch.

Type 23-position switch with LED for mal-

function and filter indication.

Type 3Wireless 3-position switch with:

LED for malfunction and filter indication.

Auxiliary switch: position 3 is activated for a given time (2 possibilities for setting the time).

Type 3

Instructions for the User 5

2

2.2.3 Bathroom Switch (Option)

Ventilation with the MTD-ERV 350 can also be operated by means of a bathroom switch.

A bathroom switch can be used to temporarily set the highest ventilation level of the MTD-ERV 350. This switch can be installed in the bathroom, for example, for discharging excess moisture as quickly as possible after showering. As the bathroom switches can have very different designs, no switch is illustrated here.

If desired, the user can also enter an activation and deactivation delay for the bathroom switch via the CC Ease operating unit (see section 2.3.7). This allows the user to specify, for example, that the MTD-ERV 350 switches to the highest ventilation level 5 minutes after the bathroom switch is activated and then returns to the normal (or originally set) ventilation level automatically after 20 minutes.

In many cases, however, no separate bathroom switch is installed and the bathroom ventilation control is integrated into the bathroom light switch. The MTD-ERV 350 then switches automatically to the highest ventilation level when the bathroom light is switched on. The MTD-ERV 350 then returns to the normal (or originally set) ventilation level as soon as the bathroom light is switched off. Here again, an activation and deactivation delay can be set via the CCE Ease operating unit.

2.3Use of the CC Ease Operating Unit

ThefollowingfunctionscanbesetusingtheCCEase operating unit:

Reading off and setting date and time.

Reading off and setting the comfort temperature.

Reading off and setting the ventilation levels.

Switching the extractor hood on and off (option)*.

Switching the supply and exhaust air fans on and off.

Setting an individual ventilation programme.

Setting additional ventilation control functions/options in the P menus.

These functions are described in more detail briefly in the following sections.

7.Press " " briefly again.

8.Wait until the minutes, e.g. " 00 ", start to flash.

9.Select with " " or " " the correct minutes.

10 Press " " briefly again to quit the menu.

2.3.2ReadingandSettingComfortTemperature

Via the CC Ease operating unit it is possible:

ϖϖTo read off and set the comfort temperature.

The comfort temperature is the temperature at which the MTD-ERV 350:

(a)Uses the heat exchanger for heat recovery;

(b)Switches on the bypass (hence bypassing the heat exchanger) to (temporarily) interrupt the exchange of heat between the exhaust air and the supply air.

You can read off the comfort temperature, but also set the desired temperature. The MTD-ERV 350 will then automatically maintain this temperature as closely as possible after setting. The comfort temperature generally corresponds to the temperature that you have set on the room thermostat (of your central heating).

2.3.1 Setting Date and Time

Via the CC Ease operating unit it is possible:

To set the date and time.

Proceed as follows:

1.Press for two seconds on " ".

2.Wait until the day, e.g. "Sa", starts to flash.

3.Select with " " or " " the correct day.

4.Press " " briefly.

5.Wait until the hours, e.g. " 12 ", start to flash.

6.Select with " " or " " the correct hour.

Reading off the comfort temperature

Proceed as follows:

1.Press " ".

2.Waituntilthecomforttemperatureisdisplayed.

3.Press " " briefly now to quit the menu.

Without pressing the key, the menu is quit automatically after 30 seconds.

6 Instructions for the User

Setting the comfort temperature

Proceed as follows:

1.

Press for two seconds on "

".

2.

Wait until the comfort temperature, e.g." 20.0 ",

 

starts to flash.

 

3.

Select the desired comfort temperature with "

 

 

 

 

 

" or "

 

".

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Press "

" briefly now to quit the menu.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Position 1 ! Low.

- Use for a low ventilation require ment.

Position 2 ! Normal.

- Use for a normal ventilation requirement.

Position 3 ! High.

- Use this level during cooking, showering and when additional ventilation is desired..

As far as the ventilation is concerned, the MTD-ERV 350 adjusts to the highest ventilation level set in the dwelling, unless otherwise set in the automatic software control.

The ventilation level can be set as follows:

1.Press " " to increase the ventilation level.

2.Press " " to decrease the ventilation level.

2.3.3 ReadingandSettingVentilationLevel

Via the CC Ease operating unit it is possible:

To read off and set the ventilation level.

Reading off the ventilation level

The currently set ventilation level, e.g.“2”, is shown as standard on the CC Ease display.The MTD-ERV 350 normally regulates the necessary ventilation level automatically. During automatic ventilation, "AUTO" is shown on the CC Ease display.

Duringventilationsetbyhand,theindication"MANUAL" appears on the CC Ease display.

3. Press " " to quit the menu.

Setting the ventilation level

You can also set the ventilation level by hand and thusincreaseordecreasethelevel.Youhaveachoice of 4 ventilation levels. These are:

Level A ! Absent.

-Use during absence.

In level A, the dwelling is ventilated with the prescribed minimum air volume.

If level A is set on the CC Ease operating unit, the 3-position switches cannot be used.

Instructions for the User 7

2

2.3.4 Switching Extractor Hood On and Off (Option)*

Via the CC Ease operating unit it is possible: To switch the extractor hood on and off.

Proceed as follows:

4.Press for two seconds on " ".

5.Wait until the symbol for the extractor hood appears.

6.Select with " " or " " the ventilation level, e.g. “ 3”.

7.Press " " briefly to switch off the extractor hood.

After switching off the extractor hood, the symbol fortheextractorhooddisappearsagainfromtheCC Ease display.

This level can be used in the summer when the windows are open. The fresh air is then drawn into the house through the open windows and not via the supply air valves.

2.Press " " twice to

switch off the exhaust air fan (and at the same time switch on the supply air fan again).

3.Press " " three times to

switch on the supply and exhaust air fans again.

Note that by switching off the supply or exhaust air fan, you temporarily have no balanced ventilation with heat and (if installed) moisture recovery in your home.

2.3.5 SwitchingSupplyandExhaustAirFansOn and Off

Via the CC Ease operating unit it is possible:

To switch the supply air or exhaust air fan on and off.

Proceed as follows:

1.Press " " once to

to switch off the supply air fan.

Never leave the fans switched off for longer than 12 hours.

8 Instructions for the User

2.3.6 Setting Ventilation Programme

Via the CC Ease operating unit it is possible: To set an individual ventilation programme.

A standard ventilation programme was set on the MTD-ERV 350 during manufacture.

This ventilation programme offers a suitable ventilation pattern for most homes. If you wish, you can adapt this standard ventilation programme to your own ventilation requirements. For example, for a week and a weekend programme.

Weekday fan position

Weekend fan position

The ventilation programme can be set/changed as follows:

1.Press simultaneously for two seconds on " " and " ".

This functions only with ventilation set to "AUTO".

2.Wait until the day appears.

3.Program the desired days or a sequence of days.

Select the desired day/days with " " or " ".

You have the following choices:

Sequence of days: “SaSu”.

Sequence of days: “MoTuWeThFri”.

Sequence of days: “SaSuMoTuWeThFri”.

Individual days: “Sa”, “Su”, “Mo”, “Tu”, “We”, “Th” and “Fri”.

The number of the switching moment flashes in the bottom right-hand corner.

Select the switching moment by pressing " " or " ".

Press " " to confirm the switching moment.

4.Program the starting time for the desired ventilation level.

Press " ".

Select with " " or " " the desired time in hours.

Instructions for the User 9

2

Press " " again.

Wait until the minutes, e.g. " 00 " start to flash.

Select with " " or " " the desired time in minutes.

Press " " again.

Wait until the ventilation symbol starts to flash.

Select the desired ventilation level with " " or " ".

Press " " to store the switching moment.

5.Program the next ventilation programme, if required.

Then perform steps 1 to 5 for the next venti lation programme.

2.3.7Setting Additional Functions via the P Menus

Via several P menus of the CC Ease operating unit you can:

Read off the status of various ventilation functions;

Activate or deactivate time delays for various ventilation functions;

Set time delays for various ventilation functions.

In the P menus the user may:

- only set the additional functions P1, P2 and P9.

The remaining P menus P3 to P8 are reserved for the installer.

Access to the P menus

Proceed as follows:

1. Press " " and " " simultaneously.

2.Wait until "P menu" appears on the display.

3.Select the desired P menu with " " or " ", e.g. " 2 ".

4.Press " " to confirm the P menu.

5.Select the desired P sub-menu with " " or " ", e.g. " 23 ".

6.Press " " to confirm the P sub-menu.

Making settings in the P menus

The minimum and maximum values for the available ventilation functions are stored in the software.

7.Select a new value for the function with " " or " ".

8.Press " " to save the value.

9.Repeat steps 5 to 8 to

set several P sub-menus in turn in the same P menu.

Or

Return to the P menu; press once on " " and possibly start again at step 3.

Or

Return to the main window

Press " " twice.

10 Instructions for the User

Menu P1 ! Status of the functions

 

 

Ventilation functions

Sub-menu

Description

Activated / not activated

P10

Menu 20 currently active?

Yes (1) / No (0)

P11

Menu 21 currently active?

Yes (1) / No (0)

P12

Menu 22 currently active?

Yes (1) / No (0)

P13

Menu 23 currently active?

Yes (1) / No (0)

P14

[Not available]

[Not available]

P15

Menu 25 currently active?

Yes (1) / No (0)

P16

Menu 26 currently active?

Yes (1) / No (0)

P17

Menu 27 currently active?

Yes (1) / No (0)

P18

Menu 28 currently active?

Yes (1) / No (0)

P19

Menu 29 currently active?

Yes (1) / No (0)

Menu P2 ! Set time delays

 

 

Time delay values

Sub-menu

Description

Minimum Maximum

Default

 

 

 

setting

P20

Deactivation delay for extractor hood

0 Min. 180 Min.

30 Min.

(Option)*

function.

 

 

'x' minutes after pressing the extractor hood switch, the MTD-ERV 350 returns to the previously set level.

P21

Activation delay for the bathroom

0 Min.

15 Min.

0 Min.

(Option)*

switch(toswitchtotheHIGHESTLEVEL).

 

 

 

Note:

• 'x' minutes after turning on the

 

 

 

bathroom switch, the MTD-ERV 350

 

 

 

Only for systems with wired

switches to the HIGHEST LEVEL.

 

 

 

switch and only if your system is

 

 

 

 

equipped with a second position

 

 

 

 

switch in the bathroom.

 

 

 

 

P22

Deactivation delay for the

0 Min.

120 Min.

30 Min.

(Option)*

bathroom switch (to switch to the NOR-

 

 

 

Note:

MAL LEVEL).

 

 

 

• 'x' minutes after turning on the bath-

 

 

 

Only for systems with wired

room switch, the MTD-ERV 350 re-

 

 

 

switch and only if

turns to the NORMAL LEVEL.

 

 

 

your system is equipped with

 

 

 

 

a second position switch in the

 

 

 

 

bathroom.

 

 

 

 

P23

Deactivation delay

0 Min.

120 Min.

30 Min.

Note:

for ventilation position 3.

 

 

 

• Whenposition3(HIGHESTLEVEL)is

 

 

 

Only for systems with a wired

switched on briefly (< 3 seconds), the

 

 

 

position switch.

MTD-ERV 350remainsatthisposition

 

 

 

 

for the time set in this menu.

 

 

 

 

If, within the run-down time, the posi-

 

 

 

 

tion switch or the radio remote control

 

 

 

 

is activated, the MTD-ERV 350 switches

 

 

 

 

immediately to the set ventilation level.

 

 

 

 

 

 

 

 

P24

Filter warning

1 week

26 weeks

16weeks

 

• Heretheusercanselectwhen"FILTER

 

 

 

 

DIRTY" is to appear on the CC Ease

 

 

 

 

display.

 

 

 

Instructions for the User 11

2

P25

Note:

Only for systems with a remote control switch.

Deactivation delay

1 Min.

20 Min. 10 Min.

for ventilation position 3 (with " ").

When

" " is pressed BRIEFLY (< 2 sec.), the MTD-ERV 350 switches to the HIGHEST LEVEL for ‘x’ minutes and then switches back automatically to the set level.‘x’ can be set between 1 and 20 minutes.

 

 

 

 

Time delay values

Sub-menu

Description

 

Minimum

Maximum

Default

 

 

 

 

 

 

setting

P26

Deactivation delay for ventilation position 3 (with "

").

1 Min.

120 Min.

30 Min.

 

 

 

 

 

When

 

 

 

 

Note:

"

" is held depressed (> 2 sec.), the MTD-ERV 350

 

 

 

switches to the HIGHEST LEVEL for 'x' minutes and then

 

 

 

Only for sys-

 

 

 

switches back automatically to the set level.‘x’can be set

 

 

 

tems with a

 

 

 

between 1 and 120 minutes.

 

 

 

 

remote con-

 

 

 

 

 

 

 

 

 

 

trol switch.

 

 

 

 

 

 

P29

Setting the Levels for the Extractor Hood.

 

1%

99%

10%

(Option)*

 

 

 

 

 

 

When the extractor hood is switched on, the ventilation levels for the extractor hood can be set a few percent higher than the corresponding 'normal' ventilation levels.

Menu P9 ! Status of the functions (from menu P5)

 

 

Ventilation functions

Sub-menu

Description

Activated / not activated

P90

Chimney

Yes (1) / No (0)

 

sweep control active?

 

P91

Bypass open (=yes)

Yes (1) / No (0)

 

/ closed (=no)?

 

P92

Valve of the geothermal heat

Yes (1) / No (0)

(Option)*

exchanger open (=yes)

 

 

/ closed (=no)?

 

P93

Post-heater active?

Yes (1) / No (0)

(Option)*

 

 

P94

0 – 10 V control active?

Yes (1) / No (0)

(Option)*

 

 

P95

Frost protection

Yes (1) / No (0)

 

(standard or preheater) active?

 

P96

Extractor

Yes (1) / No (0)

(Option)*

hood control active?

 

P97

Moisture control active?

Yes (1) / No (0)

12 Instructions for the User

2.4Use of the Switch(es) (Option)

Leave the MTD-ERV 350 at the highest position for some time after cooking and showering to remove excess moisture and odours as quickly as possible.

If several position switches are installed in the apartment, the MTD-ERV 350 adjusts as far as the ventilation is concerned to the highest ventilation position unless other values are set in an automatic software control.

2.4.1 Setting Ventilation Using 3-position Switch(es)

A 3-position switch allows 3 ventilation levels to be set.

Position 1 Low.

-Use for a low ventilation requirement.

Position 2 Normal.

-Use for a normal ventilation requirement.

Position 3 High.

-Use this level during cooking, showering and when additional ventilation is required.

2

1 3

The CC Ease operating unit allows an additional ventilation level, the absence level, to be set in addition to these 3 ventilation levels. For further information, see section 2.3.3.

2.4.2 Setting Ventilation Using Bathroom Switch(es)

A bathroom switch allows the MTD-ERV 350 to be temporarily set to the highest ventilation level (position 3):

Actuate the bathroom switch for maximum ventilation.

Actuate the bathroom switch again to return to the normal (or previously set) ventilation level.

You can set an activation and deactivation delay for the bathroom ventilation control in P menus P21 and P22. For further information, see section 2.3.7.

The bathroom ventilation control can also be integrated into the bathroom light switch.

2.5Service by the User

As user you have to service the MTD-ERV 350 as follows:

Clean or replace the filters.

Clean the valves (in the home).

These measures are described in more detail briefly in the following sections.

If these measures are not performed (regularly), there is a danger that the ComfoAir 350 will cease to function correctly.

Instructions for the User 13

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