MTD ERV 350, ERV 365 manual Definition of Terms

Page 7

2

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 Com- fosystems. We wish you every comfort.

ing the summer months. 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 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.

Ensure that the comfort temperature in winter is not set below the tem- perature 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.

2.1.1Balanced 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 circula- tion 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.

2.1.4 Frost Protection

The MTD-ERV 350alsohasafrostprotectionsystem. This protects the heat exchanger (or the optional combined heat and moisture exchanger, see sec- tion 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 automatically activated frost protection system that

-when there is a risk of frost - temporarily reduces the supply of outside air so that condensa- tionintheexchangercannotfreeze.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.

2.1.2 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 re- covered.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 MTD- ERV 350 also offers the possibility of discharging the warmer exhaust air directly into the atmosphere without passing through 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 pre- heated before it enters the dwelling.

The bypass is used particularly on warm days dur-

2.1.5 Chimney Sweep Control

The MTD-ERV 350alsohasachimneysweepcontrol system.This is a system that prevents the MTD-ERV 350 from creating an imbalance in the ventilation system, i.e. between the supply and exhaust air. The chimney sweep control system functions auto- matically.Thissystemblocksorresetsotherventila- tion 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

Page 6 Page 8
Image 7
Page 6 Page 8
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 Available Operating Aids Moisture Recovery OptionCC Ease Operating Unit 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 SwitchesFor replacement For cleaningCleaning or Replacing Filters 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 Additional Options MTD-ERV 350 Methods of OperationPreheater in MTD-ERV 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 Air Ducts Wall MountingConnection of the Condensation Drain 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 controlMaintenance by the Installer Setting the Air SpecificationsInspection of Heat Exchanger and Fans 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.
Top Page Image Contents