MTD ERV 350, ERV 365 manual Malfunctions or Problems without Indications

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4

4.7.3 Malfunctions (or Problems) without Indications

This section gives an overview of the malfunctions (or problems) that are not displayed on the CC Ease display.

Problem/Malfunction

Cause

Check / measure

All OFF

Supply voltage

Check the fuse on the PCB panel.

 

 

 

• If the fuse is OK, the circuit board is defec-

 

 

 

 

tive.

 

 

 

 

No supply voltage

The mains power supply has failed.

High air delivery tem-

Bypass remains closed

Lower

perature in summer

 

 

the comfort temperature.

Low air delivery tem-

Bypass remains open

Increase

perature in winter

 

 

the comfort temperature.

No or insufficient air

Filter clogged

Replace

supply, shower re-

 

 

the filters.

mains wet

Valves clogged

Clean

 

 

 

the valves.

 

Heat exchanger clogged by dirt.

Clean

 

 

 

the heat exchanger.

 

Heat exchanger frozen

Thaw

 

 

 

the heat exchanger.

 

Fan dirty

Clean

 

 

 

the fan.

 

Ventilation ducts clogged

Clean

 

MTD-ERV 350 in frost mode

the ventilation ducts.

Too noisy

Fan bearings defective

Replace

 

 

 

the fan bearings.

 

Fan settings

Change

 

 

 

the ventilation control settings.

 

Scraping noise

Install

 

•

Siphon is empty

the siphon again.

 

• Siphon does not seal

 

 

 

Whistling noise

Seal

 

•

An air leak somewhere in the system

the air leak.

 

Air flow noises

Install

 

•

Valves do not seal against duct.

the valves again.

 

•

Valves not sufficiently open

Set

 

 

 

the valves again.

Leaking condensation

Condensation drain clogged

Clean

 

 

 

the condensation drain.

 

Condensationfromexhaustductdoesnot

Check whether

 

run into drain plate

the connections are correct.

Wired 3-position

Wiring is not OK

Check the circuitry of the 3-position switch

switch does not func-

Switch is defective

using a voltmeter:

tion

 

 

•

Voltage only on N & L3:

 

 

 

 

[The fans run at position 1].

 

 

 

•

Voltage only on N & L3 & L2:

 

 

 

 

[The fans run at position 2].

 

 

 

• Voltage only on N & L3 & L1 or N & L3 & L2

 

 

 

 

& L1:

 

 

 

 

[The fans run at position 3].

Wireless 3-position

Battery is discharged

Check

switch does not func-

 

 

the battery.

tion

 

 

•

Replace the battery, if necessary.

Instructions for the Installer 43

Page 46 Page 48
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Page 46 Page 48
Contents MTD-ERV 350 All rights reserved Table of Contents Checking the Scope of Supply Foreword CE SymbolWarranty and Liability Warranty will be voided ifSymbols Used SafetySafety Precautions SafetyInstallationsandSafetyMeasuresDefinition of Terms CC Ease Operating Unit Moisture Recovery OptionAvailable Operating Aids 2 3-position Switch Option ReadingandSettingComfortTemperature Setting Date and TimeReading off the comfort temperature Bathroom Switch OptionReading off the ventilation level Setting the comfort temperatureReadingandSettingVentilationLevel Setting the ventilation levelSwitchingSupplyandExhaustAirFansOn and Off Switching Extractor Hood On and Off OptionWeekday fan position Weekend fan position Setting Ventilation ProgrammeReturn to the main window Access to the P menusMaking settings in the P menus Setting Additional Functions via the P MenusMenu P1 ! Status of the functions Menu P2 ! Set time delaysMenu P9 ! Status of the functions from menu P5 Setting Ventilation Using Bathroom Switches Use of the Switches OptionService by the User Setting Ventilation Using 3-position SwitchesCleaning or Replacing Filters For cleaningFor replacement Malfunctions Cleaning Valves in the Home2 3-positionSwitchwithMalfunctionLED On the position of the valvesWhat to Do in the Event of a Malfunction? End of Service LifeControlled Ventilation System Components of the Balanced Ventilation SystemMTD-ERV Preheater in MTD-ERV MTD-ERV 350 Methods of OperationAdditional Options Post-heater* in Duct System Ventilation via Extractor HoodRH Sensor* in the Home 4 CO2 Sensor* in the HomeUnderground Geothermal Heat Exchanger Technical Specifications Power supply Dimension Sketch Checking the Scope of Supply Preconditions for InstallationInstallation of the MTD-ERV Transport and UnpackingConnection of the Condensation Drain Wall MountingConnection of the Air Ducts MTD-ERV 350 Right Commissioning the MTD-ERVSelect a value for the parameter with or Menu P3 ! Set ventilation controls Menu P4 ! Read off the temperatures % and ppmMenu P5 ! Setting additional control functions Menu P7 ! Read off malfunctions and system information Menu P6  Setting additional control functionsExplanation Menu P8  Open-loop and closed-loop controlInspection of Heat Exchanger and Fans Setting the Air SpecificationsMaintenance by the Installer MTD-ERV 350 R MTD-ERV 350 LFilter Cleaning, if Preheater is Fitted Code Description Malfunction Indications on the CC Ease DisplayAvoid contact with the PCB Malfunction indications on the CC Ease Display à RemedyReset unit MIN MED T1 OK? A0 / A10 / A11 Problem/Malfunction Cause Check / measure Malfunctions or Problems without IndicationsNumber Part Spare PartsSupply air Wiring Diagram MTD-ERV 350 LEFT-HAND Standard VersionSupply air Wiring Diagram MTD-ERV 350 LEFT-HAND Luxury VersionWiring Diagram MTD-ERV 350 RIGHT-HAND Standard Version Wiring Diagram MTD-ERV 350 RIGHT-HAND Luxury Version EC Declaration of Conformity EC Declaration of ConformityPage

ERV 350, ERV 365 specifications

The MTD ERV 365 and ERV 350 are advanced energy recovery ventilation (ERV) systems designed to enhance indoor air quality and energy efficiency in residential and commercial buildings. These units utilize cutting-edge technologies to transfer heat and moisture between incoming and outgoing air streams, optimizing the temperature and humidity levels of the conditioned air.

One of the main features of the MTD ERV 365 is its high energy recovery efficiency. Equipped with a specially designed heat exchanger, this ERV can reclaim a significant portion of the energy from the exhaust air, reducing the heating and cooling load on HVAC systems. This results in lower energy bills and decreased environmental impact. The ERV 350 offers similar benefits but is tailored for slightly smaller spaces, making it suitable for various residential applications.

Both models are constructed with durability in mind, featuring robust housing and weather-resistant materials that ensure long-lasting performance. The MTD ERV series is designed to withstand varying environmental conditions, ensuring reliable operation in challenging climates. Additionally, noise-reduction technology minimizes operational sounds, promoting a peaceful indoor environment.

User-friendly controls are another highlight of the MTD ERV systems. They come equipped with intuitive interfaces, allowing users to easily adjust settings, monitor performance, and receive maintenance notifications. Advanced sensors provide real-time data on indoor air quality parameters, ensuring optimal operation based on the specific needs of the environment.

Installation and maintenance are made straightforward with these ERV units. They feature a compact design that facilitates integration into existing HVAC systems or new constructions. Filters are easily accessible for routine cleaning or replacement, maintaining peak performance over time.

Furthermore, both the MTD ERV 365 and ERV 350 are designed with sustainability in mind. Using materials that are recyclable and energy-efficient components contributes to a reduced carbon footprint. These ERV systems also comply with various building codes and standards, ensuring they meet industry requirements for safety and efficiency.

In summary, the MTD ERV 365 and ERV 350 are sophisticated energy recovery ventilation solutions that combine advanced technologies and user-friendly features. With high energy recovery efficiency, durable construction, and easy integration, they stand out as models for improving indoor air quality and energy efficiency in a variety of settings.
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