DeDietrich UME 20 Installation And Service Manual
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DeDietrich UME 20 Installation And Service Manual

Multi-split air-to-air air conditioners
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Multi-split air-to-air air conditioners
: Wall-mounted: UME 20/25/35/50 – Ductable: UGE 25/35/50 –
Indoor units
Consoles: UCE 25/35/50 – UCARE cassettes 25/35/55
Outdoor units:
MUSE 40-2/MUSE 50-2/MUSE 60-3/MUSE 80-3/MUSE 100-
4/MUSE 120-5
Installation
and service
manual
20181270 CR v8-2019Page 1
EN

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Summary of Contents for DeDietrich UME 20

  • Page 1 Multi-split air-to-air air conditioners : Wall-mounted: UME 20/25/35/50 – Ductable: UGE 25/35/50 – Indoor units Consoles: UCE 25/35/50 – UCARE cassettes 25/35/55 Outdoor units: MUSE 40-2/MUSE 50-2/MUSE 60-3/MUSE 80-3/MUSE 100- 4/MUSE 120-5 Installation and service manual 20181270 CR v8-2019Page 1...

  • Page 2: Table Of Contents

    Table of contents What is R32? .................................... 3 Warning ....................................6 Safety instructions ................................... 7 Manufacturer's liability ................................9 Installer's liability ..................................9 R32 refrigerant fluid ................................10 Technical data ..................................12 Possible combinations of indoor and outdoor units ......................18 Output at the base temperature ............................

  • Page 3: What Is R32

    What is R32? R32 = Difluoromethane (Category A2L slightly flammable) R32 is the main alternative to F-gas. This fluid is interesting in that its GWP (Global Warming Potential) is just 675 T CO2 eq.  It has no effect on the ozone layer. ...
  • Page 4 o Operators and holders take all necessary measures to perform periodic leak tests, the frequency of which is determined not by the charge expressed in kg but in tonnes CO2 equivalent (T CO2 eq), and therefore by the type of fluid used. The thresholds used are now: Equipment capacity Test frequency without Test frequency with detector...
  • Page 5 Gradual reduction of the available quantity of HFC (CO2 eq) 2015 2016-2017 2018-2020 2021-2023 2024-2026 2027-2029 2030 The fluids are classified in three flammability groups (EN 378):  Group 1: non-flammable.  Group 2: low flammability (fluid concentration > 3.5 % of the room volume). ...

  • Page 6: Warning

    Warning The air conditioner uses R32, which is a flammable refrigerant fluid.  The volume of the room for use or storage must be smaller than the flammability limit.  Do not attempt to accelerate defrosting (e.g. with a thermal stripper). ...

  • Page 7: Safety Instructions

    Safety instructions Danger This appliance can be used by children aged 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they are correctly supervised or if they have been given instruction on using the appliance in complete safety and understand the hazards involved. Children must not play with the appliance.
  • Page 8 Important Never remove or cover the labels and data plates affixed to appliances. Labels and data plates must be legible throughout the entire lifetime of the appliance. Immediately replace damaged or illegible instructions and warning stickers. Important Remove the casing only to perform maintenance and repair work. Put the casing back in place after maintenance and repair work.

  • Page 9: Manufacturer's Liability

    Manufacturer's liability Our products are manufactured in compliance with the requirements of the various applicable directives. Products are delivered with the CE marking and all the necessary documents. Quality is always our primary focus, and we constantly strive to improve our products. We therefore reserve the right to change the specifications mentioned in this document.

  • Page 10: R32 Refrigerant Fluid

    R32 refrigerant fluid Emergency number: INRS/ORFILA poison control centre +330145425959 Effects harmful to health: The vapours are heavier than air and may lead to asphyxia owing to reduced oxygen levels. Liquefied gas: contact with the liquid may cause serious frost burn and eye injuries. Flammability risk as per the concentration in air.
  • Page 11 Standards and regulations: 20181270 CR v8-2019Page 11...

  • Page 12: Technical Data

    52 °C COOLING MODE MIN. 15 °C -10 ºC 30 °C 24 °C HEATING MODE MIN. -15 °C  The various models available UME 20 EH970 7722443 UME 25 EH868 7692774 UME 35 EH869 7692775 UME 50 EH870 7692776 UCE 25...
  • Page 13 * Note: This balance corresponds to approximately 5 to 6 °C cooling compared to the outdoor temperature. For a higher value, it is recommended to create a detailed balance.  Technical specifications for the indoor unit Wall-mounted: UME 20 UME 25 UME 35 UME 50 Output in cooling mode 2.20 (1.13-2.70)
  • Page 14 Ductable: UGE 25 UGE 35 UGE 50 Output in cooling mode (min./max.) 2.60 (1.50-3.55) 3.60 (1.71-3.85) 5.10 (2.50-5.80) Output in heating mode (min./max.) 2.90 (1.70-3.65) 4.00 (1.90-3.92) 5.80 (2.84-6.40) Electrical power consumption in cooling mode at nominal output Electrical power consumption in heating mode at nominal output Air flow rate (HS/MS/LS) (indoor unit) m3/h...
  • Page 15 Console: UCE 25 UCE 35 UCE 50 Output in cooling mode (min./max.) 2.80 (1.50-3.55) 3.60 (1.70-3.70) 5.3 (2.50-5.6) Output in heating mode (min./max.) 3.00 (1.60-3.81) 3.9 (2.03-4.42) 5.8 (3.03-7.03) Electrical power consumption in cooling mode at nominal output Electrical power consumption in heating mode at nominal output Air flow rate (HS/MS/LS) (indoor unit) m3/h...
  • Page 16 Technical specifications for the outdoor unit MUSE 40-2 MUSE 50-2 MUSE 60-3 Output in cooling mode (min./max.) 4.1 (1.8-4.51) 5.3 (2.0-5.83) 6.2 (2.2-6.71) Output in heating mode (min./max.) 4.8 (2.05-5.28) 5.6 (2.21-6.16) 6.6(2.39-7.26) Electrical power consumption in cooling 1.24 1.75 1.92 mode at nominal output Electrical power consumption in heating...
  • Page 17 MUSE 80-3 MUSE 100-4 MUSE 120-5 Output in cooling mode (min./max.) 7. 9 (2.3~8.69) 10.5 (2.5-11.00) 12.00 (2.77-12.7) Output in heating mode (min./max.) 8.2 (2.45~9.02) 11.00 (2.67-11.20) 13.00 (2.96-12.80) Electrical power consumption in cooling 2.46 3.92 4.32 mode at nominal output Electrical power consumption in heating 2.27 3.04...

  • Page 18: Possible Combinations Of Indoor And Outdoor Units

    Possible combinations of indoor and outdoor units MUSE 40-2 combinations Cooling capacity in kW Outdoor unit Indoor unit Room A Room B 2.05 — 2.55 — Cooling mode 3.60 — MUSE 40-2 20 + 20 2.05 2.05 20 + 25 1.83 2.27 25 + 25...
  • Page 19 MUSE 60-3 combinations Cooling capacity in kW Outdoor unit Indoor unit Room A Room B Room C 2.05 — — 2.55 — — 3.60 — — 5.30 — — 20 + 20 2.05 2.05 — 20 + 25 2.05 2.55 —...
  • Page 20 MUSE 80-3 combinations Cooling capacity in kW Outdoor unit Indoor unit Room A Room B Room C 2.05 — — 2.55 — — 3.60 — — 5.30 — — 20 + 20 2.05 2.05 — 20 + 25 2.05 2.55 —...
  • Page 21 25 + 25 + 35 2.41 2.41 3.37 25 + 35 + 35 2.16 3.02 3.02 36 + 35 + 35 2.73 2.73 2.73 MUSE 100-4 combinations Cooling capacity in kW Outdoor unit Indoor unit Room A Room B Room C Room D 2.05 —...
  • Page 22 20+35+35+35 1.68 2.94 2.94 2.94 25+25+25+25 2.63 2.63 2.63 2.63 25+25+25+35 2.38 2.38 2.38 3.36 25+25+25+50 2.07 2.07 2.07 4.30 25+25+35+35 2.18 2.18 3.07 3.07 25+35+35+35 2.01 2.83 2.83 2.83 Cooling capacity in kW Outdoor unit Indoor unit Room A Room B Room C Room D...
  • Page 23 20+25+35+50 1.70 2.10 2.93 4.27 20+35+35+35 1.78 3.07 3.07 3.07 25+25+25+25 2.75 2.75 2.75 2.75 25+25+25+35 2.50 2.50 2.50 3.49 25+25+25+50 2.18 2.18 2.18 4.45 25+25+35+35 2.30 2.30 3.20 3.20 25+35+35+35 2.12 2.96 2.96 2.96 MUSE 120-5 combinations Cooling capacity in kW Outdoor unit Indoor unit Room A...
  • Page 24 20+25+25+35 2.29 2.85 2.85 4.02 — 20+25+25+50 1.98 2.46 2.46 5.11 — 20+25+35+35 2.08 2.59 3.66 3.66 — 20+25+35+50 1.82 2.27 3.20 4.71 — 20+35+35+35 1.91 3.36 3.36 3.36 — 25+25+25+25 3.00 3.00 3.00 3.00 — 25+25+25+35 2.72 2.72 2.72 3.84 —...
  • Page 25 20 + 20 + 35 2.15 2.15 3.70 — — 20 + 20 + 50 2.65 2.65 5.40 — — 20 + 25 + 25 2.15 2.65 2.65 — — 20 + 25 + 35 2.15 2.65 3.70 — — 20 + 25 + 50 2.15 2.55...

  • Page 26: Output At The Base Temperature

    20+25+25+25+50 1.78 2.21 2.21 2.21 4.59 20+25+25+35+35 1.86 2.31 2.31 3.26 3.26 20+25+35+35+35 1.73 2.15 3.04 3.04 3.04 25+25+25+25+25 2.60 2.60 2.60 2.60 2.60 25+25+25+25+35 2.40 2.40 2.40 2.40 3.39 25+25+25+25+50 2.14 2.14 2.14 2.14 4.45 25+25+25+35+35 2.23 2.23 2.23 3.15 3.15 25+25+35+35+35...

  • Page 27: Length And Height Difference

    Length and height difference MUSE 40-2 MUSE 50-2 MUSE 60-3 MUSE 80-3 MUSE 100-4 MUSE 125-5 Max. length between L1, L2, L3, L4, L5 (m) indoor and outdoor units Max. total length L1+L2+L3+L4+L5 (m) between indoor and outdoor units Max. height difference H1, H2, H3, H4, H5 between indoor and outdoor units...

  • Page 28: Installation Of The Outdoor Unit

    ≤ P (m) No additional load Length of the An additional load is requested: > D (m) refrigerant 20 g/m x (length of the refrigerant connection (m) - P) connection Installation of the outdoor unit Ensure that the outdoor unit is securely fixed and that it can withstand strong wind (e.g. storm, hurricane). - Install the appliance according to the information contained in the table below.

  • Page 29: Installation Of The Indoor Unit

    Outdoor unit dimensions and minimum distances to be respected on installation: MUSE 40-2 2000 MUSE 50-2 2000 MUSE 60-3 2000 MUSE 80-3 2000 MUSE 100-4 2000 MUSE 120-5 2000 Dimensions for mounting feet on outdoor units: Right-hand mounting Left-hand mounting Air inlet feet feet...
  • Page 30 Wall-mounted indoor units (UME) Dimensions of wall-mounted indoor units: Height Width Width (mm) Height (mm) Depth (mm) UME20 UME25 UME35 UME50 Ensure that you respect the following requirements for installation: Distance from the ceiling Distance from Distance from the wall the wall Distance from the floor Installation of the wall-mounted indoor unit:...
  • Page 31 - Once you have checked that the wall is solid and able to bear the weight of the indoor unit, you can begin to drill holes in the wall. - Secure the support to the wall using suitable cross-headed screwdrivers. - Use a spirit level to ensure that the support is horizontal.
  • Page 32 Wall Support Refrigerant connection Condensate discharge pipe Wall bracket - It is also possible to install the indoor units using the existing perforation on the side. - Please note that it is perfectly possible to make the electrical, condensate and refrigerant connections on both sides of the unit.
  • Page 33 Condensate discharge Condensate connection 1 discharge connection 2 Rubber cap Remove the front panel of the appliance by following the instructions below: a) Open the front blade of the indoor unit (pivot it downwards) b) As shown in the figures below, remove the two protections on the front panel, then Retaining remove the two retaining screws.
  • Page 34 Location of fittings: Model UGE 25/35 UGE 50 1000 1048 air discharge Air inlet Installation examples: Indoor unit Indoor unit Air duct Air duct Air duct Air duct Air discharge grille Filter Filter Air discharge grille Air inlet grille Air inlet grille Condensate discharge: The condensate lift pump is built into UGE indoor units 1) As shown in the illustration below, the condensate discharge outlet on the indoor unit must be connected to a drain to facilitate condensate discharge...
  • Page 35 3. To connect the discharge pipe, do not apply excessive force on the drain connection of the indoor unit. 4. There is a drain hole on either side of the indoor unit; the drain hole which is not being used must be closed.
  • Page 36 Indoor unit Indoor unit Light > 1500 > 2000 Distance between 2 indoor units > 4000 Ensure that the installation configuration is able to withstand four times the weight of the indoor unit. It must not increase the noise level or vibrations. Installation of the indoor unit and grille: Refrigerant connection...
  • Page 37 Location of fittings: These products must be secured onto a structure made from wood or reinforced concrete. This structure must be firm and sturdy enough to withstand a weight of over 200 kg and able to withstand vibrations over long periods. The cassette must be suspended as shown in the diagram below: Suspension hook Product check...
  • Page 38 2. The unit is equipped with a lift pump which can pump up to 700 mm. However, when the pump is off, the water remaining in the pipe will be drained out and risks overflowing the condensate collector box, causing a water leak. 3.
  • Page 39 Console indoor units (UCE): Installation requirements: Ensure that you respect the following installation requirements during installation. Ceiling installation Installation on the ground Location of fittings: Model UCE (25/35/50) Protection Integrated hook Suspension hook with Ceiling installation: 1. This mounting system must be strong and sturdy enough to withstand a weight of over 200 kg and to be able to withstand vibrations over long periods.
  • Page 40 Side view Front view Refrigerant tube (liquid side) Refrigerant tube (gas side) Refrigerant tube (gas side) Downward slope Condensate between 1% and 2% Condensate discharge tube Refrigerant discharge tube tube (liquid side) 1. The drain pipe must be corrected insulated to prevent the formation of condensation. 2.

  • Page 41: Refrigeration Connections

    1/2" connection (largest pipe - gas refrigerant line) to the outdoor unit with a 3/8" connection. REFRIGERANT MULTI-SPLIT INDOOR UNITS ADAPTER CONNECTIONS WALL-MOUNTED — UME 20/35/35 1/4" - 3/8" 1/4" – 1/2" UME 50 CONSOLES 1/4" – 1/2" UCE 25/35/50 1 supplied DUCTABLE 1/4"...
  • Page 42  Refrigerant connection Outdoor unit Liquid pipe Taper nut Pipe Gas pipe Indoor unit Wrenches Torque wrenches Torque wrenches Connection Torque load External diameter of the pipe External diameter of the cone Torque load (N.m) (mm/inch) fitting (mm) Ø 6.35 – 1/4 14 - 18 Ø...

  • Page 43: Electrical Diagram

    Electrical diagram Only qualified professionals may carry out electrical connections, always with the power off. Earth the appliance before making any electrical connections in accordance with standard NFC 15-100 and current norms. The appliance must be supplied by a special line protected upstream by an omnipolar circuit breaker switch The cable cross-sections are given as a guide only.
  • Page 44 CONNECTION TO THE WIRED REMOTE CONTROL FOR CASSETTES - Connect the white connector to the "CN8" connector on the indoor unit's PCB, as shown in the diagram below: 20181270 CR v8-2019Page 44...
  • Page 45 CONNECTION TO THE WIRED REMOTE CONTROL FOR CONSOLES AND DUCTABLE UNITS For ductable units, the wired control is supplied as standard - Connect the wired remote control, using the cable provided, to terminal block X1, X2, X3, X4 on the indoor unit.
  • Page 46 Examples of connections between the Outdoor and Indoor units Unité extérieure MUSE 50-2 MUSE 50-2 outdoor unit Alimentation de l’unité Power supply to the extérieure MUSE Unité A Unité B Unit A Unit B MUSE outdoor unit 3G1.5 4G1.5 4G1.5 Alimentation Electric panel du tableau...
  • Page 47 Unité extérieure MUSE 80-3 MUSE 80-3 outdoor unit Alimentation de l’unité Power supply to the extérieure MUSE Unité A Unit A Unité B Unit B Unité C Unit C MUSE outdoor unit 3G2.5 4G2.5 4G2.5 4G2.5 Alimentation Electric panel du tableau power supply électrique UME indoor unit...
  • Page 48 Unité extérieure MUSE 50-2 MUSE 50-2 outdoor unit Power supply to the Alimentation de l’unité Unit A Unit B extérieure MUSE Unité A Unité B MUSE outdoor unit 3G1.5 4G1.5 4G1.5 Alimentation Electric panel du tableau power supply électrique UME indoor unit UME indoor unit Unité...
  • Page 49 MUSE 80-3 outdoor unit Unité extérieure MUSE 80-3 Power supply to the Alimentation de l’unité Unit A Unit B Unit C extérieure MUSE Unité A Unité B Unité C MUSE outdoor unit 3G2.5 4G2.5 4G2.5 4G2.5 Alimentation Electric panel du tableau power supply électrique UME indoor unit...

  • Page 50: Troubleshooting

    Troubleshooting Do not have the air conditioner repaired by an unqualified person, as there are risks associated with the electrics and R32 refrigerant fluid. Always contact a professional. Error code Problem Overcurrent protection fault Compressor supply fault (phase loss) Inverter protection module fault Room temperature sensor fault Fault on the refrigerant sensor in the OU Fault on the refrigerant sensor in the IU...
  • Page 51 8 times when the board beeps twice, the system is validated. Press 8 times  Step 4 Open the "DeDietrich" app → "Add appliance" on your mobile → Enter the WiFi name and password (BOX) 20181270 CR v8-2019Page 51...
  • Page 52  Step 5 Once configuration is complete, the air conditioner will appear in the app  Step 6 Press "appliance" to access WiFi control 20181270 CR v8-2019Page 52...

  • Page 53: Work At Height

    Work at height  To avoid the risks of working at height, follow the procedure below in the order indicated: Wherever possible, organise work, processes and equipment so as to avoid working at height (e.g. levelling mechanism, telescopic equipment, etc.) If the risk remains, note that the law requires temporary work at height to be carried out from an operating surface designed to prevent falls from height.

  • Page 54: Acoustic Integration Of Air Conditioners

    Acoustic integration of air conditioners Definitions: The acoustic performance of the following outdoor units: Acoustic performance Lw expressed in dBA: It characterises the noise emission capacity of the source independently of its environment. It allows the appliances to be compared. Sound pressure Lp expressed in dBA: This is the value perceived by the human ear, and depends on parameters such as the distance from the source, the size and the type of walls in the building.
  • Page 55 Air inlet Air inlet grille Force switch Panel Power cord Air filter Pipe protection ring Air flow orientation louvre Air filter Air flow orientation vent Removing the filter block for better access to the electrical and refrigerant connections. A: remove the shutter by sliding the clip B: Remove the panel and the display C: Remove the covers to access the Phillips-head screws 20181270 CR v8-2019Page 55...
  • Page 56 D: Remove the four Phillips-head screws E: Detach the four lugs located above the filter block F: Unit without filter block G: Filter block: 20181270 CR v8-2019Page 56...
  • Page 57 H: For better access to electrical and refrigerant connections and condensate discharge. The unit can be moved 10 cm away from the wall. Notes: Schematic diagram  Notes for cooling/heating. In cooling mode, with high relative humidity (80%), droplets of condensation may form at the air outlet of the indoor unit.
  • Page 58 Up/down switching is motorised Right/left switching is motorised too  Cleaning. To prepare for cleaning, switch off the power and wait 5 minutes before carrying out any work to avoid the risk of electric shock. Do not rinse using large amounts of water Do not use petrol, diesel or detergent type products to clean.
  • Page 59 BDR THERMEA France 57 rue de la gare Better performance F-67580 Mertzwiller Less pollution Copyright: All technical information contained in this manual, as well as any drawings and electrical diagrams supplied, remain our property and cannot be reproduced without our prior consent in writing 20181270 CR v8-2019Page 59...

This manual is also suitable for:

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