Инструкция по эксплуатации nordmann at4

• 31 The installation site of the steam humidier depends largely on the location of the steam distributor (see chapter 5.4). To ensure proper functioning of the steam humidier and to obtain an optimal efciency, the following points must be considered and observed when choosing the location for the steam humidier: – Install the steam humidier so that the length of the steam hose is kept as short as possible (max. 4 m) and that the minimum bend r

• Nordmann AT4 19 3.7.2 Accessory details 3.7.2.1 Steam distribution pipe DV41-…/DV71-… The steam distribution pipes are selected on the basis of the duct width (for horizontal installation) or the duct height (for vertical installation) and the capacity of the steam humidier. Important! Always select the longest possible steam distribution pipe (opti mum humidication distance). Steam distribution pipes for Nordmann AT4 1) Length (L) steam distribution pipe Duct width (B) Type DV41-.. Type DV71-.. in mm 2) in mm 41200 200 210…400 41350 71350 350 400…600 41500 71500 500 550…750 41650 71650 650 700.

• 42 – – + min. 20 % min. 20 % Ømin. 200 mm Rmin. 300 mm min. 5 % min. 300 mm max. 4 m min. 300 mm – – + – + min. 20 % min. 5 % min. 20 % min. 20 % min. 20 % Ømin. 200 mm Ømin. 200 mm Rmin. 300 mm Rmin. 300 mm max. 4 m min. 300 mm min. 300 mm – Steam distribution pipe is mounted less than 500 mm above the top edge of the humidier: Initially, the steam hose is led with an upslope of at least 20 % over a minimum height of 300 mm above the top edge of th

• 3 Contents 1 Introduction 4 1.1 To the very beginning 4 1.2 Notes on the mounting instructions 4 2 For your safety 6 3 Product Overview 8 3.1 Models overview 8 3.2 Identicationoftheunit 9 3.3 Steamhumidierconstruction 10 3.4 Functionaldescription 11 3.5 Humidicationsystemoverview 13 3.6 Options 17 3.7 Accessories 18 3.7.1 Accessoriesoverview 18 3.7.2 Accessorydetails 19 3.8 Standarddelivery 22 3.9�

• 14 System overview duct humidication (double units) 1 Steam humidier 2 Steam connector 3 Water supply connectors 4 Water drain connector 5 Water connection hose G 3/4″ G 3/8″ (included in the delivery) 6 Filter valve (accessory “Z261”) 7 Manometer (installation recommended) 8 Funnel with siphon (building side) 9 Water drain hose (included in the delivery) 10 Service switch control voltage supply (building side) 11 Service switch heating voltage

• Nordmann AT4 25 4.3 Selecting the control system The various control systems – System 1: Room humidity control System 1 is suited for direct room humidication and air condition- ing systems with mainly recirculated air. The humidity sensor or humidistat respectively is preferably located in the room itself or in the exhaust air duct. – System 2: Room humidity control with continuous limitation of the supply air humidity System 2 is suited for air conditioning systems with a large portion of supply air, low supply air tempera

• 21 3.7.2.3 Fan units FAN4 N… The fan units FAN4 N… – in combination with the steam humidiers Nor dmann AT4 – are used for direct room humidication. The fan units FAN4 N S D and FAN4 N M D are mounted directly on the humidier. The fan units FAN4 N S W, FAN4 N M W und FAN4 N L W are mounted separately above the humidier to the wall. The type and number of fan units are dependent on the steam capacity and on the type of the humidier and can be gathered from the table in chapter 3.7.1. Note: Further information on the fan units FAN4… can be found in the se

• Nordmann AT4 MOUNTING INSTRUCTIONS Steam humidier Nordmann AT4 2559419 EN 1310 NORDMANN ENGINEERING
  

• Nordmann AT4 16 System overview room humidication (double units) 125…1250 µS/cm 1…10 bar 1…40 °C 1 Steam humidier 2 Steam connector 3 Water supply connectors 4 Water drain connector 5 Water connection hose G 3/4″ G 3/8″ (included in the delivery) 6 Filter valve (accessory “Z261”) 7 Manometer (installation recommended) 8 Funnel with siphon (building side) 9 Water drain hose (included in the delivery) 10 Service switch heating voltage supply (building side) 11 Service switch heating voltage supply module A (building side) 12 Service switch h

• Nordmann AT4 17 3.6 Options Nordmann AT4… 522 524 532 534 822 824 832 834 1532 1534 2362 2364 3262 3264 4564 4662 6462 6464 6564 9064 13064 Remote operating and fault indication PCB with relay contacts for the connection of remote displays for “Operation”, “Steam”, “Fault” and “Service”. 1xRFI Overpressure set Kit for mounting the water cup to the unit cover when operating the steam humidi ers in systems with a duct air pressure of up to 10 kPa. 1xOPS 2xOPS 1xOPS 2xOPS Steam hose connector with condensate trap 1xCT.. 2xCT.. 4xCT.. Cable glan

• 57 Internal control voltage supply via option CVI or option Trafo – 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. – Option Trafo (mains supply without neutral lead): For mains voltages of 400 V/3~/50…60 Hz and 400 V/2~/50…60 Hz. The option Trafo is connected according to the following wiring diagram. PEPESC2SC1NL1 X1 F1 6.3 AT SWITCH L1FUNL1SWNSW X2 MAIN SUPPLYMODULE B PEP1NP X6 AT4 ext. M L1 N Q5 K1 XE1 F5

• Nordmann AT4 24 4.1.2 Selecting the unit Heating voltage ** Max. steam ca- pacity in kg/h Model Nordmann AT4 Unit size Single unit Double unit small medium large large 400V3 (400 V/3~/50…60 Hz) 5 534 x 8 834 x 15 1534 x 23 2364 x 32 3264 x 45 4564 x 64 6464 x 65 6564 x 90 9064 x 130 13064 x 400V2 (400 V/2~/50…60 Hz) 5 524 x 8 824 x 230V3 (230 V/3~/50…60 Hz) 5 532 x 8 832 x 15 1532 x 23 2362 x 32 3262 x 46 4662 x 64 6462 x 230V1 (230 V/1~/50…60 Hz) 5 522 x 8 822 x ** Other heating voltages on request 4.2 Selecting the options an accessories For selecting the options and accessories see chapter 3.6 and

• 23 4.1 Selecting the unit version To select the unit version the following planning steps are required: 1. Calculating the required maximum steam capacity according chapter 4.1.1 2. Selecting the unit version from the table in chapter 4.1.2 4.1.1 Calculating the maximum required steam capacity The maximum required steam capacity must be calculated based on one of the following formulas: V • ρ m D = • (x 2 — x 1 ) 1000 4 Notes for the planning engineer m D : maximum steam demand in kg/h V: volume of supply air portion per hour in m 3 /h (for indirect room humidi�

• 5 Explanation of the symbols used in this manual CAUTION! The catchword “CAUTION” designates notes in this documentation that, if neglected, may cause damage and/or malfunction of the unit or other material assets. WARNING! The catchword “WARNING” used in conjunction with the general caution symbol designates safety and danger notes in this documentation that, if neglected, may cause to injury to persons. DANGER! The catchword “DANGER” used in conjunction with the general caution symbol designates safety and d

• Nordmann AT4 28 Q5 Q6 ONOFF ONOFF Z261 B3 DV41 DV71 – – + A1 / A2 AT4 ext. SC2 SC1 B3 B2 B1 J ∆p max. XE2 + – P / PI A1 On/Off A3 GND IN V+ JP3 24V 5V XE4 140Ω…10kΩ A2 JP3 24V 5V GND IN V+ XE4 GND IN V+ XE4 GNDIN X11 + – P / PI A4 LIM. SIGN. AT4 ext. AT4 ext. AT4 ext. AT4 ext. AT4 ext. L1 L2 L3 Q5 K1 XE1 F5 L1 L2 L3 L1 L2 L3 Q5 F5 L1 N PE PE PE Q5 F5 L1 L2 PE AT4 ext. PE N L1 Q6 L1 N PE F6 XE3 DS35 DS22 KS10 min. 5 % min. 20 % 400 V/2~/50..60 Hz 400 V/3~/50..60 Hz 230 V/3~/50..60 Hz 230 V/1~/50..60 Hz 230 V/1~/50..60 Hz min. 20 % G 3/4″ G 1/2″ 125…1250 µS/cm 1…10 bar 1…40°C G 3/8″

• Nordmann AT4 56 Connection of the remote terminal (Option RP) The optional remote terminal is to be connected via a fourwire cable to the corresponding contacts of terminal block X15 on the power board of one of the humidiers. Addtional humidiers (max. to be remote controlled are connected in series via the contacts “D+” und “D–” of terminal block X15 to the humidier connected to the remote terminal using a twowire cable. The maximun cable length between the units is 50 m. Cable section 0.5 mm 2 . The termination of the remote terminal bus is establis

• 64 Notes
  

• NORDMANN ENGINEERING Reg.No. 40002-2 Manufacturer: Nordmann Engineering Ltd. www.nordmann-engineering.com, [email protected] NORDMANN ENGINEERING
  

• Nordmann AT4 43 – The steam hose should be kept as short as possible (max. 4 m) while observing the minimum bend radius of 300 mm. Important! Allow ance must be made for a pressure loss of approx. 100 Pa per meter steam hose. 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”). – Reductions in the cross section such as kinks should be avoided through out the entire length of the hose. The installation of a stop cock in the steam hose is not permissibl

• 48 5.5.2 Notes on water installation Water supply The water supply is to be carried out according to the gure found in chapter 5.5.1 and the applicable local regulations for water installations. The indicated connection specications must be observed. – The installation of the lter valve (accessory “Z261”, alternatively a shutoff valve and a 5 µm water lter can be used) should be made as close as possible to the steam humidier. – Admissible mains pressure 1.0 to 10.0 ba

• 49 5.5.3 Inspecting the water installation Check the following topics: – Water supply Has lter valve (accessory “Z261”) or shutoff valve and 5 µm water lter respectively been installed in supply line? Have admissible water pressure (1 – 10 bar) and admissible tem perature (1 – 40 °C) been observed? Does the supply capacity match the humidier and is the minimum inside diameter of the supply pipe maintained throughout the entire length? Are all c

• Nordmann AT4 47 5.5 Water installation 5.5.1 Overview water installation Z261 G 3/4″ G 1/2″ 125…1250 µS/cm 1…10 bar 1…40°C ≥ 40 mm ø 31 mm ø 14/7 mm min. 50 cm Z261 G 3/4″ G 3/4″ G 1/2″ 125…1250 µS/cm 1…10 bar 1…40°C G 3/8″ G 3/8″ ≥ 40 mm ø 31 mm ø 31 mm ø 14/7 mm min. 50 cm
  

• 9 3.2 Identicationoftheunit The identication of the unit is found on the type plate: Nordmann Engineering AG, CH-8808 Pfäfkon Typ: AT4 4564 Ser.Nr.: XXXXXXX 02.10 Heizspannung: 400V / 3~ / 50…60Hz Leistung: 33.8 kW Dampeistung: 45.0 kg/h St.Spannung: 230V / 1~ / 50…60Hz Wasserdruck: 1…10 bar Made in Switzerland Type designation Serial number (7 digits) Month/Year Heating voltage Maximum steam capacity per unit Admissible water supply pressure Power consumptio

• Nordmann AT4 63 Nordmann AT4 4662/6462/6464/9064/13064 (Dimensions in mm) 966 365 365220 16 60 640 31 G 3/4” 31G 3/4” 52 52 115 23 118 142 190 238 142 190 238 560 354 13 258258 363 43.5 203 29 30 40 29 30 325 40 42 13 42 13 26 13 191
  

• Nordmann AT4 65 Notes
  

• Nordmann AT4 29 400 V/2~/50..60 Hz 400 V/3~/50..60 Hz 230 V/3~/50..60 Hz 230 V/1~/50..60 Hz 230 V/1~/50..60 Hz Q5 Q6 A1 / A2 B3 AT4 ext. SC2 SC1 B3 B2 B1 J ∆p max. XE2 + – P / PI A1 On/Off A3 GND IN V+ JP3 24V 5V XE4 140Ω…10kΩ A2 JP3 24V 5V GND IN V+ XE4 GND IN V+ XE4 AT4 ext. AT4 ext. AT4 ext. AT4 ext. L1 L2 L3 Q5 K1 XE1 F5 L1 L2 L3 L1 L2 L3 Q5 F5 L1 N PE PE PE Q5 F5 L1 L2 PE AT4 ext. PE N L1 Q6 L1 N PE F6 FAN4 N … XE3 L1 N ONOFF ONOFF FAN4 N S … D FAN4 N M … D KS10 FAN4 N S … W FAN4 N M … W FAN4 N L … W DS80 KS10 – + – Z261 min. 20 % min. 20 % min. 20 %

• Nordmann AT4 37 before diffuser before/after lter/register before/after fan, zone exit * 2,5 x B N before aerosol lter Installation notes and dimensions The steam distribution pipes are designed for either horizontal installation (on the duct wall) or, with accessories, for vertical installation (in the duct oor). The outlet orices should always point upwards and at right angles to the airow. If possible, the steam distribution pipes should be installed on the pressure side of the duct (max. duct pressure 1500 Pa). If the steam distribution pipes are installed on the su

• 52 5.6.3 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. – All cables must be lead into the unit via the cable openings equipped with cable glands (e.g. option “CGcable gland”). The cable for the heating voltage supply must be lead into the unit from the bottom via the cable opening equipped with the cla

• 44 Steam line with xed piping For steam lines with xed piping, the same instructions apply to the laying of the piping as already described. The following additional notes should be observed: – The minimum internal diameter of the steam line (diameter depend ent on the steam humidier) should be applied over the whole length of the piping. – Use exclusively copper pipe or stainless steel (min. DIN 1.4301). – To minimize the condensate formation (=loss), the steam pipes must be insulated. – The minimum

• Nordmann AT4 20 3.7.2.2 MultiPipe steam distribution system H B The MultiPipe steam distribution system is used in ventilation ducts with a short humidication distance (for the calculation of the humidication dis tance refer to chapter 5.4.2). When ordering an MultiPipe system the duct dimension must be specied. Please consult the data in the following table. MultiPipe Number of steam connectors Max. steam capacity in kg/h 1) Duct dimensions Width B in mm Height H in mm System 1 1 32 (23) 4501500 4501650 System 2 2 65 (45) 4502200 4502200 System 4 4 130 (90)

• 41 5.4.5 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 distribution pipe: – Steam distribution pipe is mounted more than 500 mm above the top edge of the humidier: Initially, lead the steam hose with an upslope of at least 20% over a minimum height of 300 mm, th

• Nordmann AT4 26 – System 3: Supply air humidity control with continuous output limit- ation Supply air humidity control (humidity sensor installed in supply air duct) should be used only where room humidity control is impracticable for technical reasons. Such systems always require a PIcontroller. The humidity sensor (A1) is located in the supply air duct after the steam distribution pipe. The humidity sensor (A2) for the continuous output limitation is located in the supply air duct before the steam distribution pipe. Such a

• Nordmann AT4 15 System overview room humidication (single units)  1 Steamhumidier  2 Steamconnector  3 Watersupplyconnector  4 Waterdrainconnector  5 WaterconnectionhoseG3/4″-G3/8″ (includedinthedelivery)  6 Filtervalve(accessory“Z261”)  7 Manometer(installationrecommended)  8 Funnelwithsiphon(buildingside)  9 Waterdrainhose(includedinthedelivery) 10 Serviceswitchcontrolvoltagesupply(buildingside) 11 Serviceswitchheatingvoltage�

• 55 Remote operating and fault indication H1 (Option “RFI”) The optional remote operating and fault indication PCB is to be connected via a at ribbon cable to the corresponding connector on the control board. The optional remote operating and fault indication PCB contains four potentialfree relay contacts for the connection of the following operating and fault indications: – “Error”: This relay is activated if an error is present. – “Service”: This relay is activated when the set service interval has expire

• Nordmann AT4 27 5 Mounting and installation work 5.1 Important notes for mounting and installation work Qualication of personnel All mounting and installation work must be carried out only by well quali- ed personnel authorised by the owner. It is the owner’s responsibility to verify proper qualication 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, steam and electricity. Observe and comply with all local regulations dealing with w

• Nordmann AT4 46 5.4.7 Inspecting the steam installation Use the following check list to ascertain that the steam installation was performed correctly: – Steam distributors Steam distributors (steam distribution pipe or MultiPipe steam distri bution system) correctly positioned and secured (screws tightened)? Are the outlet orices at right angles to the air ow direction? – Steam hose Maximum length of 4 m? Minimum bend radius of 300 mm (5 x internal diameter with xed piping)? Have the

• Nordmann AT4 35 The calculation of the humidication distance “B N ” is dependent on several factors. For a rough estimation of the humidication distance “B N ”, the fol lowing table is useful. Recommended standard values listed in this table are based on a supplyair temperature range of 15 °C to 30 °C. The values given in bold type only apply to steam distribution pipes DV41-… and DV71-…, the values in brackets apply to the MultiPipe steam distribu- tion system. Humidity at inlet ϕ1 in %rh Length of humidication distance B N in m Humidit

• Nordmann AT4 40 5.4.4 Positioning and mounting of the fan units FAN4 N… Fan unit FAN4 N… The fan units FAN4 N S D and FAN4 N M D are mounted directly on the humidier. The fan units FAN4 N S W, FAN4 N M W und FAN4 N L W are mounted separately above the humidier to the wall. To allow the steam coming from the fan unit to spread out evenly, without condensing on obsta cles (ceilings, joists, pillars, etc.), the following minimum dimensions must be observed when selecting the location for the fan unit. FAN4 N S W FAN4 N M W FAN4

• 32 5.3.2 Mountingthehumidier a b b c BB A A Dimension Unit type 522, 524, 532, 534, 822, 824, 832, 834 1532, 1534, 2362, 2364 3262, 3264, 4564, 6564 a 204,0 mm 205.0 mm 205.0 mm b 40,0 mm 50.0 mm 52.5 mm c 150,0 mm 210.0 mm 260.0 mm b b a c d d c BB B B A A A A A Dimension Unit type 4662, 6462, 6464, 9064, 13064 a 203.0 mm b 43.5 mm c 258.0 mm d 181.5 mm
  

• Nordmann AT4 45 5.4.6 Common steam and condensate line errors 1. Steam hose not led at least 300 mm perpendicularly upwards before rst 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 distribution pipe. 4. No condensate drain installed at vertical transition. 5 . Steam hose not sloped (slope min. 20 %). 1. 2. 3. 4. 5.
  

• 58 5.6.4 Inspecting the electrical installation Check the following points: Do the supply voltages for heating and control comply with the relevant voltages given in the wiring diagram? Is the correct CF Card inserted? Are the voltage supplies (heating and control voltage) correctly fused? Are the service switches “Q..” installed in the supply lines for to the heating and control voltage? Are all components correctly connected according to the wiring d

• Nordmann AT4 50 5.6 Electric installation 5.6.1 Wiring diagram Nordmann AT4 single units REMOTE LINK UP EXTERNAL CON.CPU BOARD D+ D– GND 5V 24V X15 J2 PEPESC2SC1NL1 X1 F1 6.3 AT INLET DRAIN CONTA. L’NL’N X4 CONT. SIGN. GNDINV+ X10 JP3 L’N X3 24V 5V 5V 24V SAFETY CHAIN CONTACTORDRAININLETSC SYSTEM LEVEL SENSOR GND SWITCH L1FUNL1SWNSW X2 SC L’N X16 S1S2 LEVEL SENS. CURRENT SENSOR X5 MAIN SUPPLYMODULE B PEP1NP X6 LIM. SIGN. GNDIN EXT. SUP. 5V GND 24V X11 X14 F4 315mAT F3 315mAT J1 J9 J1 J4 J1 X1 J2 J3 J4 1 Error

• 18 3.7 Accessories 3.7.1 Accessories overview Accessories for water installation Nordmann AT4… 522 524 532 534 822 824 832 834 1532 1534 2362 2364 3262 3264 4564 4662 6462 6464 6564 9064 13064 Filter valve Z261 (1 pc. per system) Accessories for steam installation Nordmann AT4… 522 524 532 534 822 824 832 834 1532 1534 2362 2364 3262 3264 4564 4662 6462 6464 6564 9064 13064 Steam distribution pipe (Details see chapter 3.7.2) 1xDV41 1xDV71 2xDV71 4xDV71

• Nordmann AT4 53 Heating voltage supply CAUTION! Before connecting, ensure that the mains voltage corresponds with the heating voltage for the unit (see type plate). The connection to the heating voltage is made in accordance with the wir ing diagram, to the terminal block “XE1” in the control compartment. The customer is to install a service switch “Q5” (disconnecting device with a minimum contact opening of 3 mm is an essential requirement) and a fuse group “F5” (essential requirement, fuses are to be as detailed in the fol lowing table) in the supply line. The supply wiring is to be fed in

• Nordmann AT4 34 5.4 Steam installation 5.4.1 Overview steam installation DV41 DV71 – – + DS35 DS22 KS10 FAN4 N S … D FAN4 N M … D KS10 FAN4 N S … W FAN4 N M … W FAN4 N L … W DS80 KS10 – + – min. 20 % min. 20 % min. 20 % Ø min. 100 mm Ø min. 100 mm min. 5 % min. 20 % min. 20 % min. 300 mm min. 300 mm Pmax 1500 Pa Pmin -800 Pa Ømin. 200 mm Rmin. 300 mm
  

• © Nordmann Engineering Ltd., Printed in Switzerland Technical modifications reserved
  

• Nordmann AT4 30 5.3 Mounting the unit 5.3.1 Notes on locating the unit Nordmann AT4 … 522 524 532 534 822 824 832 834 1532 1534 2362 2364 3262 3264 4564 4662 6462 6464 6564 9064 13064 Dimensions Housing dimensions in mm X 388 388 468 468 563 563 966 966 563 966 966 Y 255 255 345 345 354 354 354 354 354 354 354 Z 575 575 620 620 640 640 640 640 640 640 640 Weights Net weight in kg 12 12 19 19 28 28 62 62 30 64 64 Operating weight in kg 17 17 29 29 65 65 116 116 67 116 116 min. 400 mm min. 600 mm min. 250 mm min. 400 mm min. 600 mm Z Y X
  

• Nordmann AT4 Notes
  

• Nordmann AT4 54 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 humidier 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 ing diagram, to the terminal block “XE3” in the control compartment. The customer is to install a service switch “Q6” (all pole disconnecting device with a minimum contact opening of 3 mm) and a “F6” fuse (max. 10 A slow acting) in the supply line (these are both essential requirements

• 6 2 For your safety General Every person working with the Nordmann AT4 must have read and understood the present mounting instructions before carrying out any installation work. Knowing and understanding the contents of the mounting instructions is a basic requirement for protecting the personnel against any kind of danger, to prevent faulty installation, and to install and operate the unit safely and correctly. All ideograms, signs and markings applied to the unit must be observed and kept in readable state. Qualication of

• Nordmann AT4 4 1 Introduction 1.1 To the very beginning We thank you for having purchased the steam humidier Nordmann AT4. The steam humidier Nordmann AT4 incorporates the latest technical ad van ces and meets all recognized safety standards. Nevertheless, improper use of the Nordmann AT4 may result in danger to the user or third parties and/or impairment of material assets. To ensure a safe, proper, and economical operation of the steam humidier Nordmann AT4, please observe and comply with all information and safety instructions contained in the present mounting instructions. If you

• Nordmann AT4 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. If the required steam capacity is lower than the actual output, the inlet valve is closed until the desired capacity is achieved by lowering of the water level (evaporation process). Level monitoring A sensor provided in the steam cylinder cover detects when the water level gets too high. The moment the sensor com

• Nordmann AT4 38 Positioning the steam distribution pipes in the duct In positioning the steam distribution pipes, the following dimensions should be observed: 1/2 1/2 H H 1/3 2/3 h min H 2/7 2/7 3/7 H 2/7 2/7 3/7 g min 1/3 1/3 1/3 H H 1/6 1/6 1/6 1/6 2/6 H 1/2 1/2 H 1/6 1/6 1/6 1/6 2/6 g min g min g min H 1/5 1/5 1/5 1/5 1/5 g min.= 100 mm h min.= 85 mm H min.= 250 mm H ≥400 mm H min.= 200 mm H min.= 400 mm H min.= 720 mm H min.= 350 mm H min.= 600 mm H min.= 300 mm H min.= 500 mm
  

• Nordmann AT4 60 6.2 Unit dimensions Nordmann AT4 5../8.. (Dimensions in mm) 115 26 13 164 124 255 60 575 31 G 3/4” 50 430 388 230 150 16 29 42 13 30 40 150 40 204 13
  

• 7 Danger that may arise from the unit: DANGER! Danger of electric hazard! The Nordmann AT4 is mains powered. One may get in touch with live parts when the unit is open. Touching live parts may cause severe injury or danger to life. Prevention: The Nordmann AT4 must be connected to the mains only after all mounting and installation work has been completed, all installa tions have been checked for correct workmanship and the covers has been relocated properly. Behaviour in case of danger All person

• Nordmann AT4 59 6 Product specications 6.1 Technical data Steam capacity in kg/h 5 8 15 23 32 45 46 64 65 90 130 Capacity range in kg/h 1…5 1.6…8 3…15 4,6…23 6,4…32 9…45 9,2…46 12,8…64 13…65 18…90 26…130 Nominal power in kW 3,8 6,0 11,3 17,3 24,0 33,8 2x 17,3 2x 24,0 48,8 2x 33,8 2x 48,8 Number of steam cylinder 1 1 1 1 1 1 2 2 1 2 2 Heating voltage 230V/1~/50..60Hz * Unit model 522 822 Nominal current in A 16,3 26,1 Steam cylinder type ** 522A 822A Heating voltage 400V/2~/50..60Hz * Unit model 524 824 Nominal current in A 9,4 15,0 Stea

• Nordmann AT4 10 3.3 Steamhumidierconstruction 1 Steam cylinder compartment 2 Control compartment 3 Main contactor 4 Power board 5 Connecting terminals 6 Type plate 7 Remote operating and fault indication board (option) 8 Cable openings 9 Control board with CF Card 10 Display and control unit 11 Drain key 12 Operation status indicators 13 Unit switch 14 SC pump 15 Water cup 16 Filling and draining hose 17 Water supply hose 18 Overow hose 19 Inlet valve 20 Drain pump 21 Drain cup 22 Steam cylinder receptacle 23 Drain hose (manual drain)

• Nordmann AT4 51 MODULE B PEP1NP X6 CPU BOARD J3 X25 MAINSC SYSTEM DRAIN INLET INLETDRAINSC X24 L’ N L’ N L’ N L’ N X27 MAIN X23 LEVEL SENSOR CURRENT SENSOR S1S2 LEVEL SENS. EXT. SUP. 5V GND 24V X14 REMOTE LINK UP EXTERNAL CON.CPU BOARD D+ D– GND 5V 24V X15 J2 PEPESC2SC1NL1 X1 F1 6.3 AT INLET DRAIN CONTA. L’NL’N X4 CONT. SIGN. GNDINV+ X10 JP3 L’N X3 24V 5V 5V 24V SAFETY CHAIN CONTACTORDRAININLETSC SYSTEM LEVEL SENSOR GND SWITCH L1FUNL1SWNSW X2 SC L’N X16 S1S2 LEVEL SENS. CURRENT SENSOR X5 MAIN SUPPLYMODULE B PEP1NP X6 LIM. SIGN. GNDIN EXT. SUP. 5V GND 24V X11 X14 F

• Nordmann AT4 33 Procedure 1. Mark the attachment points “A” for the wall support at the desired position with the help of a spirit level. Then, drill holes diameter: 8 mm, depth: 40 mm. 2. Insert the supplied plastic plugs, and x the wall support to the wall with the screws supplied. Before thightening the screws adjust wall support horizontally using a spirit level. 3. Unlock the screw(s) of the front panel(s) (steam side), then remove the front panel(s). 4. Unmount the steam cylinder(s) (see Nordmann AT4 operating instruc tions chapter 6.3.1). 5. Hang up the unit onto the wall support. Then, x the unit to the wall support

• 61 Nordmann AT4 15../23.. (Dimensions in mm) 60 620 31 G 3/4” 50 115 155 345 430 468 310 150 16 26 13 209 29 30 40 42 13 210 50 205 255 13
  

• Nordmann AT4 8 3 Product Overview 3.1 Models overview Steam air humidiers Nordmann AT4 are available with different heating voltages and steam capacities ranging from 5 kg/h up to a maximum of 130 kg/h. Heating voltage ** Max. steam ca- pacity in kg/h Model Nordmann AT4 Unit size Single unit Double unit small medium large large 400V3 (400 V/3~/50…60 Hz) 5 534 x 8 834 x 15 1534 x 23 2364 x 32 3264 x 45 4564 x 64 6464 x 65 6564 x 90 9064 x 130 13064 x 400V2 (400 V/2~/50…60 Hz) 5 524 x 8 824 x 230V3 (230 V/3~/50…60 Hz) 5 532 x 8 832 x 15 1532 x 23 2362 x

• Nordmann AT4 11 3.4 Functional description The steam humidier Nordmann AT4 is a pressureless steam generator that utilizes an electrode heating. The steam humidier Nordmann AT4 is designed for air humidication via a steam distributor (steam distribution pipe, fan unit or steam distribution system MultiPipe). Steam generation Any time steam is requested, the electrodes are supplied with voltage via main contactor. Simultaneously, the inlet valve opens and water enters the steam cylinder from the bottom via

• 13 ONOFF ONOFF 11 10 1 2 3 4 5 6 7 DS35 DS22 Z261 12 13 16 14 KS10 DV41 DV71 17 8 9 ONOFF ONOFF 11 10 17 1 3 5 6 7 Z261 8 2 13 4 DS35 KS10 12 14 DV71 16 9 15 MultiPipe System 1 System 2 3.5 Humidicationsystemoverview System overview duct humidication (single units) 1 Steam humidier 2 Steam connector 3 Water supply connector 4 Water drain connector 5 Water connection hose G 3/4″ G 3/8″ (included in the delivery)

• Nordmann AT4 22 3.8 Standard delivery The standard delivery includes: – Steam humidier Nordmann AT4 with water connection hose G 3/4″  G 3/8″ and water drain hose ø 31/40 mm equipped with the options ordered according to chapter 3.6, xing set, mounting instructions (this document) and operating instructions, packaged in cardboard box Unit type Dimensions packaging (L x W x D) Transport weight 522, 524, 532, 534, 822, 824, 832, 834 720 mm x 520 mm x 340 mm 14.0 kg 1532, 1534, 2362, 2364 760 mm x 600 mm x 420 mm 1

• Nordmann AT4 36 Example given: ϕ1= 30 %rh, ϕ2= 70 %rh humidication distance B N : 1,4 m (0.36 m for steam distribution system MultiPipe) Note: If the humidication distance has to be reduced for technical reasons, the amount of steam per unit must be divided between several steam distribution pipes or the steam distribution system MultiPipe must be used. If this is the case, contact your Nordmann supplier. Minimum distances to be observed To prevent the water vapour, that is emitting from the steam distribution pipe, from condensing on downstr

• 62 Nordmann AT4 32../4564/6564 (Dimensions in mm) 29 30 40 563 365 190 16 60 640 31 G 3/4” 50 115 142 190 238 510 42 13 26 13 191 354 255 13 260 52.5 205
  

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