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   Introduction    1

1  Introduction

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

1.1  Foreword

Apart from this general chapter, this operating man-
ual consists of:
•  A section for the user,
•  A section with technical specifi cations, and …
•  A section for the installer.

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fore 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, opera-
tion and maintenance of the MTD-ERV 350. In ad-
dition, 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 notifi cation.

1.2  CE Symbol

The unit is marketed under the name MTD-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 identifi cation plate of the ComfoAir 
350.

1.3  Warranty 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 ma-
terial 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 manu-
facture of the  MTD-ERV 350. Warranty claims can be 
made only for material fl aws 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 fi lter;
•  Parts not supplied by the manufacturer are in-

stalled;

•  Unauthorised changes or modifi cations are 

made to the unit.

1.3.3   Liability

The MTD-ERV 350 has been developed and manu-
factured for use in "balanced ventilation systems". 
Use in any other way does not constitute an 'intend-
ed use' and can result in damage to the MTD-ERV
350 or in personal injury for which the manufacturer 
accepts no liability.
The manufacturer accepts no liability for damage or 
injury resulting from the following causes:

•  Failure to observe the safety, operating and 

maintenance instructions contained in this op-
erating 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.

Содержание MTD-ERV 350

Страница 1: ...MTD ERV 350 365 Installation Operating Manual...

Страница 2: ...II All rights reserved Thismanualhasbeenproducedwiththegreatestcareandattention Nevertheless thepublisheracceptsnoliabilityfordam age resulting from missing or incorrect information in this manual...

Страница 3: ...f 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 Opt...

Страница 4: ...e 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 Ma...

Страница 5: ...to the MTD ERV 350 The warranty period begins with commissioning but not later than one month after delivery This applies to ma terial replacement and does not include labour It applies only on proof...

Страница 6: ...rnings com ments 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...

Страница 7: ...Admitting the cool night air on warm days allows the room temperature in thehometobereduced Thebypassfunctionsauto matically You simply have to set your comfort tem perature See section 2 3 2 for furt...

Страница 8: ...at In this way up to 65 of the moistureisrecoveredfromtheexhaustair Thesup ply air can thus enter the rooms with an increased moisture content s a d e p p i u q e s i 0 5 3 MTD ERV e h T standard with...

Страница 9: ...r 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 TheCCEaseoperatingu...

Страница 10: ...n the bathroom light is switched on The MTD ERV 350 then re turns to the normal or originally set ventilation level as soon as the bathroom light is switched off Here again an activation and deactivat...

Страница 11: ...during cooking showering and when additional ventilation is desired to increase the ventilation level 2 Press to decrease the ventilation level Duringventilationsetbyhand theindication MAN UAL appear...

Страница 12: ...s 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 This level can be used in the summer when the windows are open The...

Страница 13: ...r Select the switching moment by pressing or Press to confirm the switching mo ment 4 Program the starting time for the desired ventilation level Press Select with or the desired time in hours 2 Instr...

Страница 14: ...nc tions In the P menus the user may only set the additional functions P1 P2 and P9 The remaining P menus P3 to P8 are re served for the installer Access to the P menus Proceed as follows 1 Press and...

Страница 15: ...your system is equippedwithasecondposition switch in the bathroom Activation delay for the bathroom switch toswitchtotheHIGHESTLEVEL x minutes after turning on the bathroom switch the MTD ERV 350 swit...

Страница 16: ...hood control active Yes 1 No 0 P97 Moisture control active Yes 1 No 0 2 12 Instructions for the User P26 Note Only for sys tems with a remote con trol switch Deactivation delay for ventilation positio...

Страница 17: ...ilation requirement Position 2 Normal Use for a normal ventilation requirement Position 3 High Use this level during cooking showering and when additional ventilation is re quired 2 Instructions for t...

Страница 18: ...part of the duct system of the ventilation system and do not belong to the MTD ERV 350 Should your ventilation system be equipped with external fil ters the monitoring of these filters must be con ne...

Страница 19: ...3 posi tion switch is used The LED lights up green once to signal that a communication has been made In the event of a malfunc tion or a Filter dirty warning both LEDs light up red three times Finall...

Страница 20: ...ction for filter clean ingorreplacementorforsomeotherurgentreason Iftheplugweretoberemovedfromtheplugsocket thedwellingwouldnolongerbemechanicallyventi latedandmoistureaswellasfungusproblemscould occu...

Страница 21: ...tions that can only be connected to the MTD ERV 350 Luxury versions Exhausting via extractor hood Post heater in duct system Sensors with 0 10 V control 2x Moisture sensor in living areas of the dwell...

Страница 22: ...x ceeding 95 in which moisture as well as heat is recovered from the exhaust air CC Ease operating unit G for reading off data and for settings PCB panel H2 with connections for the CC Ease operating...

Страница 23: ...ditionally heats the supply air after it has already been heated in the heat exchanger before it is delivered into the living rooms for further information see section 3 4 3 The balanced ventilation s...

Страница 24: ...d opens and the MTD ERV 350 switches to the Extractor hood function Ventila tion positions 1 2 or 3 can be set These ventila tion positions for the extractor hood correspond to the normal ventilation...

Страница 25: ...e also section 2 3 7 The following CO2 concentrations can be set The starting point for this CO2 control is the assumption that the outside air is generally the fresh er air The CO2 con centration can...

Страница 26: ...ERV 350 for further information see section 4 4 The installer can modify the automatic control of the geother mal heat exchanger to a slight extent in menu P61 at the CC Ease operating unit if necess...

Страница 27: ...an Position Ventilation rate Value Absent Low at Medium at High at Maximum at at Noise output exhaust air fan Position Ventilation rate Value Absent Low at Medium at High at Maximum at at MTD ERV 350...

Страница 28: ...n e V n o i t i s o P Power supply Noise output supply air fan Value Absent Low Medium High Maximum e u l a V e t a r n o i t a l i t n e V n o i t i s o P Absent Low Medium High Maximum Noise output...

Страница 29: ...25 Function of the System 3 3 6 Dimension Sketch...

Страница 30: ...nnected to a non powered extractor hood Any other type of extractor hood system would interfere with the basic function of the balanced ventilation system We recommend that silencers are installed on...

Страница 31: ...cted seealsosection4 3 2 for the connection of the condensation drain Ensure that at least 1 metre of space is left in frontoftheMTD ERV 350forlatermaintenance work NospaceisrequiredtothesidesoftheMTD...

Страница 32: ...the P menu appears on the display The P menus P1 P2 and P9 are now accessible CommissioningcanbecarriedoutwiththePmenus viatheCCEaseoperatingunit ThesePmenusallow varioussettings inparticularforventil...

Страница 33: ...u 7 Select with or the desired P sub menu e g 51 8 Press to confirm the P sub menu Making settings in the P menus The minimum and maximum values for the available setting parameters are stored in the...

Страница 34: ...ium 17 99 Normal High 50 70 P37 Setting the power in of the supply air fan in position High 18 100 Normal High 70 90 P38 Current power in of the exhaust air fan Current P39 Current power in of the sup...

Страница 35: ...ECONOMYSETTING Thislevelthusofferstheleastsafetyformaintain ing balanced ventilation During commissioning of the MTD ERV350 the preheater control can generally be left on Level 2 NOMINAL SETTING works...

Страница 36: ...tefor these data Li Re Li P58 Not yet avail able Setting the fan type 0 Standard 1 Constant volume 2 Constant pressure Note The MTD ERV 350 is set correctly at the factory Constantvolumeorconstantpres...

Страница 37: ...alogy with input 1 P84 Min setting by analogy with input 2 P85 Max setting by analogy with input 2 Max Min 0 V 10 After a complete reset the MTD ERV 350 prompts you to enter nL HL see P56 and Li Re se...

Страница 38: ...Close all windows and outside doors Close all inside doors Checkthepresenceofaircirculationsystemsin the building at least 12 cm2 per l s d e m r o f r e p t o n e r a s e r u s a e m e s e h t f I r...

Страница 39: ...ing in struction Do not install the heat exchanger yet if the fans are also to be inspected The following section describes how to remove inspect and clean the fans if necessary after the heat exchang...

Страница 40: ...ponds to roughly level 2 of a normal screw drill 4 6 2 Filter Cleaning if Preheater is Fitted The filter of the preheater if installed must be cleaned every 4 years Removethemainsplug A fromtheplugsoc...

Страница 41: ...the enthalpy sensor Caution The electrical connections must not come into contact with moisture Pay attention during installation of the heat exchanger and drain plate that the condensa tion drain is...

Страница 42: ...current 1 5 10 VDC Yes Remove the heat exchanger and the foam part of the bypass and replace the fan No Replace the PCB CAUTION Reset unit No Replace the PCB CAUTION Reset unit FiL tEr in display Remo...

Страница 43: ...st protection element due to risk of electrocution E A1 Moisture sensor registers 60 relative humidity in exhaust air Consult the user fit standard heat exchanger E A2 Cannot read out moisture sensor...

Страница 44: ...ss frost protection element malfunction Remove the filter the plastic front cover and the metal cover Then initiate the self test P76 on 1 Is the motor running Yes No Remove the motor and the cog incl...

Страница 45: ...over and the metal cover Remove the plug of frost protection element from the PCB Is the resistance of the plug of the frost protection element 300 ohm Yes Remove the heat exchanger and the frost prot...

Страница 46: ...No Replace PCB Caution Reset unit Replace temperature sensor Temp Resistance C K MIN MED MAX 10 19 570 19 904 20 242 15 15 485 15 712 15 941 18 13 502 13 681 13 861 19 12 906 13 071 13 237 20 12 339 1...

Страница 47: ...fan Ventilation ducts clogged Clean the ventilation ducts MTD ERV 350 in frost mode Too noisy Fan bearings defective Replace the fan bearings Fan settings Change the ventilation control settings Scrap...

Страница 48: ...ature sensors T1 T3 in top of unit on electronic carriage 5 Temperature sensors T2 T4 in fan casing of both fans 6 Servo motor cable for bypass and preheater 7 Heat exchanger or combined heat enthalpy...

Страница 49: ...rown Preheater Yellow Black Black White Brown White Brown White Blue Yellow Red Preheater valve Bathroom switch Enthalpy Bypass valve Green Yellow Green Yellow Green Yellow Supply air Exhaust air 4 45...

Страница 50: ...2 PC GND 12V Eb Ea GND 12V 12V Ab CCb Aa CCa GND GND Ext Comm N L1 PE Comm Basis RS232 KFB 12V RX TX ERR GND OFF BS GND GND FIE CH GND GND Tch Tge GND GND Tah 010 GND GND 010 AH Post heater Bathroom s...

Страница 51: ...own Preheater Yellow Black Black White Brown White Brown White Blue Yellow Red Bypass valve Bathroom switch Enthalpy Preheater valve Green Yellow Green Yellow Green Yellow Exhaust air Supply air 4 47...

Страница 52: ...32 PC GND 12V Eb Ea GND 12V 12V Ab CCb Aa CCa GND GND Ext Comm N L1 PE Comm Basis RS232 KFB 12V RX TX ERR GND OFF BS GND GND FIE CH GND GND Tch Tge GND GND Tah 010 GND GND 010 AH Post heater Bathroom...

Страница 53: ...28 PM Zwolle NL Commercial Register Zwolle 22293 EC Declaration of Conformity Designation of the appliance Heat Recovery Unit MTD ERV 350 Conforms to the directives Machine Safety Directive 98 37 EC C...

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Страница 56: ...MTD SOLUTIONS LTD Unit 1 Burgage Business Park Blessington Co Wicklow Ireland Tel 353 0 45 900 590 Fax 353 0 45 900 623 Email info mtd solutions com www mtd solutions com...

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