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Table of Contents
Summary of Contents for MTD MTD-ERV 350
- Page 1 ™ MTD-ERV 350 / 365 Installation & Operating Manual...
- Page 2 All rights reserved. This manual has been produced with the greatest care and attention. Nevertheless, the publisher accepts no liability for dam- age resulting from missing or incorrect information in this manual.
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Page 3: Table Of Contents
Table of Contents 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 ... - Page 4 4.7.2 Malfunction Indications on the CC Ease Display ‡ Remedy ... 38 4.7.3 Malfunctions (or Problems) without Indications ... 43 Spare Parts ... 44 Wiring Diagram: MTD-ERV 350 – LEFT-HAND Standard Version ... 45 4.10 Wiring Diagram: MTD-ERV 350 – LEFT-HAND Luxury Version ... 46 4.11...
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Page 5: Introduction
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. -
Page 6: Safety
Observe the safety precautions given in this operat- ing manual at all times. Failure to observe the safety precautions, warnings, comments and instructions can result in personal injury or damage to the MTD- ERV 350. Only an approved installer is authorised to install,... -
Page 7: Instructions For The User
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. Defi nition of Terms The MTD-ERV 350 has the following functions: •... -
Page 8: Moisture Recovery (Option)
MTD-ERV 350. This exchanger then has an ad- ditional function, i.e. recovering moisture in addition to the recovery of heat. In this way, up to 65% of the moisture is recovered from the exhaust air. -
Page 9: 3-Position Switch (Option)
Actual ventilation position (with activated extractor hood, if applicable) The CC Ease operating unit has various keys for operating and setting the MTD-ERV 350. These keys are explained below. This key is used to switch the extractor hood on or off. -
Page 10: Bathroom Switch (Option)
2.2.3 Bathroom Switch (Option) Ventilation with the MTD-ERV 350 can also be op- erated 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. -
Page 11: Reading And Setting Ventilation Level
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"... -
Page 12: Switching Extractor Hood On And Off (Option)
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 ap- pears. -
Page 13: 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. -
Page 14: Setting Additional Functions Via The P Menus
Press " – " again. Wait until the minutes, e.g. " 00 " start to – fl ash. – Select with " " or " time in minutes. – Press " " again. Wait until the ventilation symbol starts to –... - Page 15 Only for systems with a wired position switch. 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. Filter warning • Here the user can select when "FILTER tor hood switch, the MTD-ERV 350 returns to the previously set level.
- Page 16 Description Deactivation delay for ventilation position 3 (with " When " " is held depressed (> 2 sec.), the MTD-ERV 350 Note: 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.
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Page 17: Use Of The Switch(Es) (Option)
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. -
Page 18: Cleaning Or Replacing Filters
For cleaning ... You can clean the fi lters when necessary: Remove the mains plug from the plug socket. • Pull the fi lters (A) out of the MTD-ERV 350. • • Clean the fi lters (B) using a vacuum cleaner. -
Page 19: Cleaning Valves (In The Home)
(F). • Fasten the clamps (C) again. • Push the fi lters (A) back into the ComfoAir 350. Insert the plug of the MTD-ERV 350 into the • plug socket again. • Press " " to cancel the fi lter indication. -
Page 20: What To Do In The Event Of A Malfunction
MTD-ERV 350. The plug must always remain in the plug socket as long as the MTD-ERV 350 does not have to be shut down due to a serious malfunction, for filter clean- ing or replacement or for some other urgent reason. -
Page 21: Function Of The System
Function of the System This chapter describes the design of the balanced ventilation system and its function in conjunction with the MTD- ERV 350. Components of the Balanced Ventilation System The complete balanced ventilation system consists of the following components: ·... -
Page 22: Mtd-Erv 350
fi lter display (option) and the bathroom switch (option). · Identifi cation plate (I) with the data on the MTD-ERV 350 (not visible). · Condensation drain (J) for discharging the condensation from the warm exhaust air. -
Page 23: Additional Options
3.4.1. Preheater in MTD-ERV 350 All MTD-ERV 350 systems with “VV” in the device name (see identifi cation plate on the top of the MTD-ERV 350) are equipped as standard with a preheater. All other MTD-ERV 350 versions can be equipped with a pre- heater as an option. -
Page 24: Ventilation Via Extractor Hood
C. The user cannot infl uence the automatic preheater control. The installer has to modify the preheating control, for example during installa- tion of the MTD-ERV 350, in menu P52 via the CC Ease operating unit (for further information, see section 4.4). -
Page 25: Co2 Sensor* In The Home
PCB panel in the electronics casing on the top of the MTD-ERV 350 by the installer. 3.4.5. RH Sensor* in the Home A RH sensor can be connected to the MTD-ERV 350. -
Page 26: Underground Geothermal Heat Exchanger
PCB panel (extended ver- sion) of the MTD-ERV 350 as an option that can switch off the fans of the MTD-ERV 350 via a float- ing contact. By means of a pressure sensor installed in the... -
Page 27: Technical Specifi Cations
Absent Medium High Maximum Position Absent Medium High Maximum MTD-ERV 350 nL (normal Air Volume) l i t Power supply Noise output supply air fan Ventilation rate Noise output exhaust air fan Ventilation rate Value Value Function of the System... - Page 28 Maximum HE exchanger material Inner lining material Heating capacity Weight 24 Function of the System MTD-ERV 350 nL (normal Air Volume) l i t Power supply Noise output supply air fan l i t Noise output exhaust air fan l i t...
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Page 29: Dimension Sketch
Dimension Sketch Function of the System... -
Page 30: Instructions For The Installer
Instructions for the Installer This chapter describes how you have to install the MTD-ERV 350. Preconditions for Installation In order to be able to assess whether the ComfoAir 350 can be installed in a particular room, please pay attention to the following points: •... -
Page 31: Wall Mounting
Ensure that at least 1 metre of space is left in front of the MTD-ERV 350 for later maintenance work. No space is required to the sides of the MTD-ERV 350 for its proper operation. Stale air Do not install the MTD-ERV 350 with a side against a wall to avoid possible contact noise. -
Page 32: Commissioning The Mtd-Erv 350
Commissioning can be carried out with the P menus via the CC Ease operating unit. These P menus allow various settings (in particular for ventilation control) to be selected for the MTD-ERV 350. An overview of the available P menus is given below: Menu... - Page 33 Press " " and " " simultaneously for 2 seconds. Wait until the "P menu" P3 appears on the dis- play. The P menus P3 to P8 are now acces- sible. Select with " " or " " the desired P menu, e.g.
- Page 34 Menu P3 ! Set ventilation controls Sub-menu Description Setting the power (in %) of the exhaust air fan in position "Absent". Setting the power (in %) of the exhaust air fan in position "Low". Setting the power (in %) of the exhaust air fan in position "Medium".
- Page 35 Note: change only if a preheater was subsequently installed. If the MTD-ERV 350 has to be reset to the works settings via P75, a subsequently installed preheater will be reset as standard to "A • Check the presence of the preheater after a general reset via menu P75.
- Page 36 Setting the MTD-ERV 350 Type. • Li = Left-hand version. • Re = Right-hand version. Note: The MTD-ERV 350 is set correctly at the factory. • Refer also to the identifi cation plate for these data. Setting the fan type.
- Page 37 A complete reset returns all settings to the original works settings. After a complete reset, the MTD-ERV 350 prompts you to enter “nL / HL” (see P56) and “Li / Re” (see P57) again. After a complete reset, all settings in menus P2 and P3 and the existing controls P5 and P6 have to be made again.
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Page 38: Setting The Air Specifi Cations
Switch the MTD-ERV 350 (back) to ventilation • position 2. Maintenance by the Installer As installer you have to service the MTD-ERV 350 as follows: • Inspect the heat exchangers and fans • Clean the fi lter if a preheater is installed. - Page 39 • changer (F) and the drain plate (G). • Remove the bypass duct (H) on the left-hand version of the MTD-ERV 350. MTD-ERV 350 – R • Remove the bypass duct (H) on the right-hand version of the MTD-ERV 350.
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Page 40: Filter Cleaning, If Preheater Is Fitted
The fi lter of the preheater (if installed) must be cleaned every 4 years. • Remove the mains plug (A) from the plug sock- Pull the fi lters (B) out of the MTD-ERV 350. • • Remove the front plate by removing the screws (C). -
Page 41: Malfunctions
Malfunctions In the event of a malfunction in the MTD-ERV 350: • A malfunction indication normally appears on the display of the CC Ease operating unit. Not all malfunction indications appear on the CC Ease display, however, even when there is a malfunction (or problem). -
Page 42: Malfunction Indications On The Cc Ease Display ‡ Remedy
230 VAC? Do the fan Replace the PCB CAUTION: Reset unit Left-hand or right-hand version of the MTD-ERV 350? See illustration on plastic cover for location of PCB Replace the PCB CAUTION: Reset unit 350 Left: Supply fan left... - Page 43 PCB and frost protection element due to risk of electrocution Cause depends on unit connected to the MTD-ERV 350: check the connected unit. Moisture sensor registers >60% relative humidity in exhaust air. Consult the user; fit standard heat exchanger??
- Page 44 CAUTION! Avoid contact with the PCB and frost protection element due to risk of electrocution Replace the PCB CAUTION: Reset unit! Remove the motor and the cog (incl. plastic part) Is the cog defective? Replace cog 40 Instructions for the Installer A1 / A2 / A3 / A4 Temp Temperature sensor malfunction...
- Page 45 CAUTION! Avoid contact with the PCB and frost protection element due to risk of electrocution protection element from the PCB Remove the heat exchanger and the frost protection element (and also the foam part in case of right-hand version) Is the resistance of the cable of the frost protection element infinite?
- Page 46 CAUTION! Avoid contact with the PCB and frost protection element due to risk of electrocution Check temperature sensor Replace PCB Caution: Reset unit! 42 Instructions for the Installer A0 / A10 / A11 Malfunction Temperature sensor resistance; see table Resistance Replace temperature sensor Temp.
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Page 47: Malfunctions (Or Problems) Without Indications
Valves clogged Heat exchanger clogged by dirt. Heat exchanger frozen Fan dirty Ventilation ducts clogged MTD-ERV 350 in frost mode Too noisy Fan bearings defective Fan settings Scraping noise • Siphon is empty • Siphon does not seal Whistling noise •... -
Page 48: Spare Parts
Spare Parts The following table contains an overview of the spare parts available for the MTD-ERV 350. Number Part Fans (left and right) PCB panel in MTD-ERV 350. PCB panel in top-mounted casing, Basic or Luxury version. Temperature sensors T1 / T3 (in top of unit, on electronic carriage). -
Page 49: Wiring Diagram: Mtd-Erv 350 - Left-Hand Standard Version
Wiring Diagram: MTD-ERV 350 – LEFT-HAND Standard Version Supply air Blue Blue Brown Brown Blue Brown Bathroom switch Exhaust air Enthalpy Instructions for the Installer... -
Page 50: Wiring Diagram: Mtd-Erv 350 - Left-Hand Luxury Version
4.10 Wiring Diagram: MTD-ERV 350 – LEFT-HAND Luxury Version Supply air BYP/PIE T1/T3 T2/T4 VENT. BYP/PIE T1/T3 T2/T4 VENT. Exhaust air 46 Instructions for the Installer (N) Blue (L3) Brown (L2) Black (L1) Grey RJ11 RS232 Bathroom switch Comm. Basis... -
Page 51: Wiring Diagram: Mtd-Erv 350 - Right-Hand Standard Version
4.11 Wiring Diagram: MTD-ERV 350 – RIGHT-HAND Standard Version Exhaust air Blue Blue Brown Brown Blue Brown Bathroom switch Supply air Enthalpy Instructions for the Installer... -
Page 52: Wiring Diagram: Mtd-Erv 350 - Right-Hand Luxury Version
4.12 Wiring Diagram: MTD-ERV 350 – RIGHT-HAND Luxury Version Exhaust air BYP/PIE T1/T3 T2/T4 VENT. BYP/PIE T1/T3 T2/T4 VENT. Supply air 48 Instructions for the Installer (N) Blue (L3) Brown (L2) Black (L1) Grey RJ11 RS232 Bathroom switch Comm. Basis... -
Page 53: Ec Declaration Of Conformity
4.13 EC Declaration of Conformity J.E. Stork Ventilatoren B.V. are the manufacturers of the MTD-ERV 350 8028 PM Zwolle-NL Commercial Register Zwolle 22293 Designation of the appliance: Conforms to the directives Zwolle, 16 June 2007 J.E. Stork Ventilatoren B.V. E v Heuveln,... - Page 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...