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Nordmann AT4 D Series Mounting Instructions

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NORDMANN
E N G I N E E R I N G
Nordmann AT4 D
Steam generator
MOUNTING INSTRUCTIONS
2559435 EN 1310

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  • Page 1 NORDMANN E N G I N E E R I N G Nordmann AT4 D Steam generator MOUNTING INSTRUCTIONS 2559435 EN 1310...

  • Page 3: Table Of Contents

    Mounting the unit 5.3.1 Notes on locating the unit 5.3.2 Mounting the steam generator 5.3.3 Inspecting the installed unit 5.4 Steam installation 5.4.1 Overview steam installation 5.4.2 Positioning/mounting the steam distributor 5.4.3 Installing the steam and condensate hose 5.4.4 Common steam and condensate line errors 5.4.5 Inspecting the steam installation 5.5 Water installation 5.5.1 Overview water installation 5.5.2 Notes on water installation 5.5.3 Inspecting the water installation 5.6 Electric installation 5.6.1 Wiring diagram Nordmann AT4 D 5.6.2 Notes on electric installation 5.6.3 Inspecting the electrical installation Product specifications 6.1 Technical data Unit dimensions...

  • Page 4: Introduction

    The steam generator Nordmann AT4 D incorporates the latest technical ad­ van ces and meets all recognized safety standards. Nevertheless, improper use of the Nordmann AT4 D may result in danger to the user or third parties and/or impairment of material assets.
  • Page 5 Please safeguard these mounting instructions in a safe place, where it can be immediately accessed. If the equipment changes hands, the documenta­ tion should be passed on to the new operator. If the documentation gets mislaid, please contact your Nordmann sup­ plier. Language versions The present mounting instructions are available in various languages.

  • Page 6: For Your Safety

    It is assumed that all persons working with the Nordmann AT4 D are fa­ miliar and comply with the appropriate regulations on work safety and the prevention of accidents.
  • Page 7 Behaviour in case of danger All persons working with the Nordmann AT4 D are obliged to report any alterations to the unit that may affect safety to the owner without delay and to secure such a unit against accidental power-up.

  • Page 8: Product Overview

    Product Overview Models overview Steam generators Nordmann AT4 D are available with different heating voltages and steam capacities ranging from 5 kg/h up to a maximum of 65 kg/h. Heating voltage ** Max. steam capacity Model Unit size in kg/h...

  • Page 9: Identification Of The Unit

    Identification of the unit The identification of the unit is found on the type plate: Type designation Serial number (7 digits) Month/Year Nordmann Engineering AG, CH-8808 Pfäffikon Heating voltage Type: AT4 D 4564 Ser.Nr.: XXXXXXX 02.10 Heating voltage: 400V / 3~ / 50...60Hz Power: 33.8 kW...

  • Page 10: Steam Generator Construction

    Steam generator construction figure shows medium unit Steam cylinder compartment Water cup Control compartment Filling and draining hose Power board Water supply hose Main contactor Overflow hose Transformer Inlet valve Drain pump Steam bath board Connecting terminals Drain cup Type plate Steam cylinder receptacle Remote operating and fault indication board (option) Drain hose (manual drain)

  • Page 11: Functional Description

    Functional description The steam generator Nordmann AT4 D is a pressureless steam generator that utilizes an electrode heating. The steam generator Nordmann AT4 D is designed for steam generation for steam baths. Steam hose Steam distributor Water cup Current sensor...
  • Page 12 Upon reaching the requested steam capacity, the inlet valve closes. If the steam generation decreases below a certain percentage of the required capacity, due to lowering of the water level (e.g. because of the evapora­ tion process or drainage), the inlet valve opens until the required capacity is available again.

  • Page 13: Humidification System Overview

    Humidification system overview DS22 DS35 Z261 125...1250 µS/cm 1...10 bar 1...40 °C Steam generator Funnel with siphon (building side) Steam connector Water drain hose (included in the delivery) Water drain connector Service switch heating voltage supply (building side) Water supply connector Service switch control voltage supply (building side) Water connection hose G 3/4"­...

  • Page 14: Options

    1xL-CVI (for mains supply with neutral lead) @-Link AT4 D Configuration according to separate documentation Gateway to connect the Nordmann AT4 D to a building management system. Two versions are available: BACnet/IP or LonWorks. Nordmann AT4 D... (400 V/3~/50...60 Hz)
  • Page 15 6564 1534 2364 3264 Temperature sensor 1xKTY Nordmann AT4 D Remote-Terminal 1 Terminal (RP) for the remote control of up to 8 steam generators Nordmann AT4 D Touch Screen Panel 1xTSP General accessories Nordmann AT4 D... 1532 2362 3262 4564...

  • Page 16: Accessory Details

    3.7.2 Accessory details 3.7.2.1 3.7.2.1 Steam distributor DDS22 ø22.5 mm ø48.5 mm max. 19 mm 3.7.2.2 3.7.2.2 Steam distributor DDL22/DDL35 ø43 mm DDL22: ø22.5 mm DDL35: ø35 mm max. 18 mm 3.7.2.3 3.8.2.3 Steam distributor W22/W35 W22: ø43 mm W35: ø61 mm W22: ø22.5 mm...

  • Page 17: Standard Delivery

    Always place the unit on its back side. Packaging Keep the original packaging of the Nordmann AT4 D for later use. In case you wish to dispose of the packaging, observe the local regulations on waste disposal. Never dispose of the packaging to the environment.

  • Page 18: Notes For The Planning Engineer

    The total amount of losses depends on the entire system and must be taken into consideration when determinating the required steam capac­ ity. If you have any questions regarding the calculation of the steam capacity please contact your Nordmann supplier.

  • Page 19: Selecting The Unit

    4.1.2 Selecting the unit Nordmann AT4 D 4564 400V3 Heating voltage ** Max. steam capacity Model Unit size in kg/h Nordmann AT4 D small medium large 1534 400V3 2364 (400 V/3~/50...60 Hz) 3264 4564 6564 400V2 (400 V/2~/50...60 Hz) 230V3 1532 (230 V/3~/50...60 Hz)

  • Page 20: Mounting And Installation Work

    Mounting and installation work Important notes for mounting and installation work Qualification of personnel All mounting and installation work must be carried out only by well quali- fied personnel authorised by the owner. It is the owner’s responsibility to verify proper qualification of the personnel. General note Strictly observe and comply with all information given in the present mounting instructions regarding the location of the unit and the installation of water,...

  • Page 21: Installation Overview

    Installation overview Temperature control min. 5 % min. 20 % – ext. AT4 D DS22 DS35 DDS22 DDL22 DDL35 G 3/4" ø 31 mm ø14/7 mm G 1/2" Heating voltage G 3/8" Z261 L1 L2 L3 Steam installation 125...1250 µS/cm 1...10 bar see chapter 5.4 1...40 °C...

  • Page 22: Mounting The Unit

    Notes on locating the unit . 1 0 m i n . 1 0 m i n 1532 2362 3262 4564 6564 1534 2364 3264 Nordmann AT4 D ... Dimensions Housing dimensions in mm Weights Net weight in kg Operating weight in kg...
  • Page 23 CAUTION! If for some reason the Nordmann AT4 D must be installed in a location without floor drain, it is mandatory to provide a leakage monitoring device to safely interrupt the water supply in case of leakage.

  • Page 24: Mounting The Steam Generator

    3. Unlock the screw of the front panel (steam side), then remove the front panel. 4. Unmount the steam cylinder (see Nordmann AT4 D operating instruc­ tions chapter 6.3.1). 5. Hang up the unit onto the wall support. Then, fix the unit to the wall support using the supplied screws “B”.

  • Page 25: Inspecting The Installed Unit

    5.3.3 Inspecting the installed unit Check the following points: Is the unit installed in the correct place (see chapter 5.3.1)? Is the supporting surface stable enough? Is the unit correctly aligned, vertically and horizontally? Is the unit properly secured (see chapter 5.3.2)? Has the front panel of the unit been relocated and correctly fixed with the screw?

  • Page 26: Steam Installation

    Steam installation 5.4.1 Overview steam installation DDS22 DDL22 DDL35 min. 5 % – KS10 min. 20 % min. 5 % – min. 20 % DS22 DS35 DDS22 DDL22 DDL35...

  • Page 27: Positioning/Mounting The Steam Distributor

    5.4.2 Positioning/mounting the steam distributor It’s the responsibility of the customer to correctly position the steam distribu­ tor in the steam bath cabin. WARNING! Hot water vapour - Danger of scalding! Shield the steam outlet of the steam distributor with corresponding meas­ ures to make sure steam bath users can not be burned by the steam flow.

  • Page 28: Installing The Steam And Condensate Hose

    5.4.3 Installing the steam and condensate hose Important! Use original steam and condensate hose from your Nordmann supplier exclusively. Other types of hoses can cause undesired operational malfunctions. Instructions for the hose layout The hose layout depends on the position of the steam distributor: –...
  • Page 29 – Steam distributor is mounted less than 500 mm above the top edge of the steam generator: min. 5 % – min. 20 % DS22 DS35 Obstacle min. 20 % min. 5 % – min. 20 % min. 20 % –...
  • Page 30 Note: If your particular installation exceeds the maximum steam hose length of 4 m contact your Nordmann representative. In any case, steam hoses longer than 4 m must be insulated in their entire length (e.g. with insulation hose “EcoTherm”).
  • Page 31 Steam line with fixed piping For steam lines with fixed piping, the same instructions apply to the laying of the piping as already described. min. 20 % min. 5 % – min. 20 % The following additional notes should be observed: –...

  • Page 32: Common Steam And Condensate Line Errors

    5.4.4 Common steam and condensate line errors 1. Steam hose not led at least 300 mm perpendicularly upwards before first bend. 2. Minimum bend radius of steam hose of 300 mm not maintained (forming of condensate). 3. Siphon of the condensate hose not at least 300 mm below the steam distributor.

  • Page 33: Inspecting The Steam Installation

    5.4.5 Inspecting the steam installation Use the following check list to ascertain that the steam installation was performed correctly: – Steam distributor Steam distributors correctly positioned and secured (screws tight­ ened)? Are the outlet orifices at right angles to the air flow direction? –...

  • Page 34: Water Installation

    Water installation 5.5.1 Overview water installation G 3/4" ø 31 mm ø14/7 mm G 1/2" ø 31 mm G 3/4" G 3/8" Z261 125...1250 µS/cm 1...10 bar 1...40 °C ≥ 40 mm G 3/8"...

  • Page 35: Notes On Water Installation

    Nordmann supplier. – Notes on water quality: – For the water supply of the Nordmann AT4 D, use exclusively un- treated drinking water. – The use of additives such as corrosion inhibitors, disinfectants, etc. is not allowed, since these additives may endanger health and affect proper operation.

  • Page 36: Inspecting The Water Installation

    5.5.3 Inspecting the water installation Check the following topics: – Water supply Has filter valve (accessory “Z261”) or shut-off valve and 5 µm water filter respectively been installed in supply line? Have admissible water pressure (1 – 10 bar) and admissible tem­ perature (1 –...

  • Page 37: Electric Installation

    Electric installation 5.6.1 Wiring diagram Nordmann AT4 D...

  • Page 38: Notes On Electric Installation

    5.6.2 Notes on electric installation Important notes – The electric installation must be carried out according to the wiring dia­ gram in chapter 5.6.1, the notes on electric installation as well as the applicable local regulations. All information given in the wiring diagram must be followed and observed.
  • Page 39 “F8” (essential requirement, fuses are to be as detailed in the fol­ lowing table) in the supply line. The supply wiring is to be fed into the unit via the clamp strap on the bottom of the unit. Heating voltage Max. steam Nordmann Nominal power Nominal Main fuses F8 capacity AT4 ..
  • Page 40 Control voltage supply CAUTION! – Before connecting, ensure that the mains voltage corresponds with the control voltage of the unit (230 V/1 50…60 Hz). – The steam generator must only be connected to a mains supply with a protective conductor. The connection to the control voltage is made in accordance with the wir­...
  • Page 41 The 0­10 V signal is con­ nected to the terminals “IN” (+) and “GND” (–) of terminal bloc “X10” on the power board. The configuration of the control signal is made via the control software of the Nordmann AT4 D.
  • Page 42 Fragrance pump M1 and M2 (230VAC) The fragrance pumps are connected to the appropriate terminals of terminal bloc “X22” on the steam bath board according to the wiring diagram. The connection layout is dependent on the operating mode (internal or external control) of the fragrance pumps.
  • Page 43 Steam bath fans M3/M4 (2­Fan mode) and M5 (1­fan mode) – 2­fan mode 2-Fan Mode FAN 1 FAN 2 1-Fan Mode EXT. TRAFO IN LIGHT SUPPLY OUT AUX1 AUX2 FAN 0VAC 18V15V FAN 0V AT4 D ext. FAN 1 FAN 2 L N PE (Exhaust) (Supply)
  • Page 44 Switch SW1 and push-buttons SW2...SW4 The switch SW1 (door switch) and the push­buttons SW2 (steam bath On/ Off), SW3 (Light 1 On/Off) and SW4 (Light 2 On/Off) are connected to the appropriate terminals of terminal bloc “X31” on the steam bath board. Note: If no door switch (SW1) is connected the terminals “DOOR”...

  • Page 45: Inspecting The Electrical Installation

    Internal control voltage supply via option CVI – Option CVI (mains supply with neutral lead): For mains voltages of 400 V/3~/50...60 Hz, 400 V/2~/50...60 Hz and 230 V/3~/50...60 Hz. The option CVI is connected according to the fol­ lowing wiring diagram. 6.3 AT MODULE B MAIN SUPPLY...

  • Page 46: Product Specifications

    1x M-CVI 1x L-CVI @Link AT4 D @Link AT4 D Accessories Filter valve 1x Z261 Nordmann AT4 D Remote Terminal Nordmann AT4 D Touch Screen Panel Temperature sensor KTY Steam distributor 1xW22 1xW35 2xW35 Fragrance pump 1xFP 240V T-piece for fragrance injection...

  • Page 47: Unit Dimensions

    Unit dimensions Nordmann AT4 D 5../8.. (Dimensions in mm) G 3/4”...
  • Page 48 Nordmann AT4 D 15../23.. (Dimensions in mm) G 3/4”...
  • Page 49 Nordmann AT4 D 32../4564/6564 (Dimensions in mm) 52.5 G 3/4”...
  • Page 50 Notes...
  • Page 51 © Nordmann Engineering Ltd., Printed in Switzerland Technical modifications reserved...
  • Page 52 Reg.No. 40002-2 NORDMANN Manufacturer: Nordmann Engineering Ltd. E N G I N E E R I N G www.nordmann-engineering.com, info@nordmann-engineering.com...

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