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Nortec ME Series Installation Manual

Adiabatic air humidification /air cooling system
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READ AND SAVE THESE INSTRUCTIONS
INSTALLATION MANUAL
Adiabatic air humidification/air cooling system
Nortec ME Control
Humidification and Evaporative Cooling

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  • Page 1 READ AND SAVE THESE INSTRUCTIONS INSTALLATION MANUAL Adiabatic air humidification/air cooling system Nortec ME Control Humidification and Evaporative Cooling...
  • Page 2 Thank you for choosing Nortec Installation date (MM/DD/YYYY): Commissioning date (MM/DD/YYYY): Location ref.: Model: Serial number: Manufacturer Condair Plc Artex Avenue, Rustington, Littlehampton, West Sussex. BN16 3LN (UK) TEL: +44(0)1903 850 200 FAX: +44(0)1903 850 345 www.condair.co.uk Proprietary Notice This document and the information disclosed herein are proprietary data of Condair Plc. Neither this document, nor the information contained herein shall be reproduced, used, or disclosed to others without the written authorization of Condair Plc, except to the extent required for installation or maintenance of recipient's equipment.

  • Page 3: Table Of Contents

    Product designation / Which model do you have UL approved installation Installation Installation overviews 4.1.1 Typical installation Nortec ME Control (internal installation) 4.1.2 Typical installation Nortec ME Control (external installation) Mounting the evaporative module 4.2.1 Notes on positioning the evaporative module 4.2.2...

  • Page 4: Introduction

    Further information on options and accessories can be obtained in the respective instructions. This installation manual is restricted to the installation of the Nortec ME Control and is meant for well trained personnel being sufficiently qualified for their respective work.
  • Page 5 If the documentation gets mislaid, please contact your Nortec representative. Language versions This installation manual is available in various languages. Please contact your Nortec representative for information. Introduction...

  • Page 6: For Your Safety

    For safety and warranty reasons any action beyond the scope of this manual must be carried out only by qualified personnel authorised by the manufacturer. It is assumed that all persons working with the Nortec ME Control are familiar and comply with the ap- propriate local regulations on work safety and the prevention of accidents.
  • Page 7 Preventing unsafe operation All persons working with the Nortec ME Control are obliged to report any alterations to the unit that may affect safety to the owner without delay and to secure such systems against accidental power-up.

  • Page 8: Important Notes On Installation

    The packaged Nortec ME unit may be carried by fork lift from the underside, but caution should be exer- cised to ensure that the load is balanced before lifting. Refer to the rating plate for weights and measures.

  • Page 9: Product Designation / Which Model Do You Have

    Note: water quality should be considered when selecting an appropriate material (i.e. copper is not suitable for RO water). 3. The Nortec ME Control unit contains a large reservoir of water when in operation. Install the ME unit where is no risk of water damage, otherwise make provisions to contain any leakage.

  • Page 10: Installation

    3 - Water installation --> see chapter 4.4 – Water installation 4 - Mounting the control unit --> see chapter 4.4.4 – Mounting the control unit 5 - Electrical installation --> see chapter 4.5 – Electrical installation Fig. 1: Typical installation Nortec ME Control (internal installation) Installation...

  • Page 11: Typical Installation Nortec Me Control (External Installation)

    3 - Water installation --> see chapter 4.4 – Water installation 4 - Mounting the control unit --> see chapter 4.4.4 – Mounting the control unit 5 - Electrical installation --> see chapter 4.5 – Electrical installation Fig. 2: Typical installation Nortec ME Control (external installation) Installation...

  • Page 12: Mounting The Evaporative Module

    Mounting the evaporative module 4.2.1 Notes on positioning the evaporative module The design and dimensioning of the AHU/air duct as well as the location of the evaporative module inside the duct are determined, recorded and set compulsory when planning the entire system. Prior to installation, however, make sure the following criteria have been taken into consideration: –...
  • Page 13 – For inspection, commissioning and maintenance we recommend a minimum free space of 600 mm (24") before and after the evaporative module. Air flow direction 395 mm / 15.6" Recommended service access Recommended service access 600 mm / 24" 600 mm / 24" (min.

  • Page 14: Installation Procedure Evaporative Module

    1. Mounting the tank upstands to the tank: • Mounting the tank upstands supplied by Nortec: fix tank upstands to the tank as shown in the figure below using the nuts (M8, AF: 13 mm) and washers supplied. Do not tighten the nuts.
  • Page 15 2. Mounting the tank: • Insert the tank into the AHU/air duct. WARNING! Use an appropriate lifting device or handle the tank with the help of another person to posi- tion it inside the duct. It is the customer's responsibility to ensure that operators are trained in handling heavy goods and to enforce the relevant lifting regulations.
  • Page 16 3. Fix frame to the tank: • Fix the vertical supports to the tank using the nyloc nuts (M6, AF: 10 mm) and M6 washers. Then, align the vertical supports exactly vertical using a level and tighten the nuts. • Fix the cross member to the vertical supports using the nyloc nuts (M6, AF: 10 mm) and M6 washers.
  • Page 17 4. Fix cross member of frame to AHU/duct ceiling: • Fix the cross member to the AHU/duct ceiling using appropriate fixings. Before tightening the screws align the vertical supports exactly vertical using a level. Fig. 7: Fix cross member to AHU/duct ceiling Installation...
  • Page 18 The installer must take appropriate measures to ensure that the duct floor remains water proof once the lower blanking plates has been fixed to the duct floor. Fig. 8: Mount the Nortec supplied blanking plates on the air inlet side Installation...
  • Page 19 Mounting the cross bar: • Put the cross bar on the corresponding cross bar bracket with a distance of “A” to the vertical support (see table below). Type evaporative cassette Dimension A (according to rating plate) (nominal) 100 mm (4") 150 mm (6") 200 mm (8") 200 mm (8")
  • Page 20 7. Mount optional submerged UV, if applicable: If your system is equipped with the submerged UV mount UV bulb assembly to the cross bar and the junction box to the tank in accordance with the separate manual for this option. 8.
  • Page 21 9. Mount evaporative cassettes: Note: to avoid damage to the evaporative cassettes during transit, we recommend that the evapo- rative cassettes are fitted on site. • Before installing the evaporative cassettes sweep the interior of the tank. • Starting with the tallest evaporative cassettes on the bottom hook the cassettes into the vertical supports.
  • Page 22 10. Mount the droplet separator cassettes (this step must only be carried out, if your system is equipped with a droplet separator): Note: to avoid damage to the droplet seperator cassettes during transit, we recommend that the droplet seperator cassettes are fitted on site. •...
  • Page 23 • Hook the lower separator brackets into the cross bar. • Then, starting on one side mount one separator bank after the other, align it and secure it with the upper separator brackets. Make sure separator metalwork slots into evaporator cassettes. Fig.

  • Page 24: Mounting The Hydraulic Module

    Mounting the hydraulic module The mounting procedure of the hydraulic module depends on whether or not the hydraulic module is mounted internal or external to the duct. 4.3.1 Mounting the hydraulic module (internal installation) 1. Apply silicone free grease (e.g. gasket grease) onto the surface of the tank connector and onto the surface of the rubber sealing inside the connector of the hydraulic module.

  • Page 25: Mounting The Hydraulic Module (External Installation)

    4.3.2 Mounting the hydraulic module (external installation) Clearances to be observed MINIMUM 25 mm (0.98") DETAIL A CLEARANCE TYP. HYDRAULIC MOUNTING BRACKET Ø80 mm (3.1.5") HOLE 173.17 mm 156.83 mm (6.82") (6.17") MINIMUM CLEARANCE OF 300 mm (11.81") REQUIRED 325 mm 310 mm (12.80") (12.20")
  • Page 26 Mounting procedure 1. Mark position of the hole for the drain pipe feed through on the AHU/duct wall. Important: when mounted the drain pipe must have a downslope of 1 to max. 2 % towards the AHU/duct wall. 2. Drill hole ø55 mm (2.2") for the drain pipe into AHU/duct wall. 3.

  • Page 27: Water Installation

    General notes on installation of the hoses – Use the supplied black plastic hoses ø15 mm (0.625") only. For hygienic reasons do not use other hoses (except products supplied by your Nortec distributor). – When cutting hoses use an appropriate cutting tool providing straight, kink-free cuts.

  • Page 28: Water Installation (Internal Installation)

    – Notes on water supply – The water supply is to be carried out according to the figures found in chapter 4.4.4 – Mount- ing the control unit and 4.4.3 – Water installation (external installation) and the applicable local regulations for water installations. The indicated connection specifications must be observed. The installation material must be supplied by the customer. – The installation of a shut-off valve in the supply line is mandatory and should be made as close as possible to the hydraulic module. – Regarding supply water quality see appendix. – The installation material must be pressure-proof and certified for use in drinking water supply systems. – The wall feed through for the water supply must be done by the customer. Important: after installation the water supply pipe has to be sealed around the feed through using silicone-free sealant.
  • Page 29 4.4.2 Water installation (internal installation) Stages Connection layout (box rows) distribution hoses Distribution hoses ø15 mm (0.625") constant slope (no sagging) 2...5 bar Water supply push-fit connector ø15 mm (0.625") Feed throughs (supplied) Shut-off valve (supplied) Drain pipe vent (mandatory, not sup- Drain pipe ø28 mm (1.125") plied), highest point of vent tube must with constant downslope be above max. water level of tank 1...2 % (not supplied) Drain trap (not supplied) Drain trap height: Allow a height of 25 mm (1") for every 250 Pa of duct pressure (e.g. 100 mm (4") for 1000 Pa duct pressure) AHU drain with drain trap (not supplied) Drain trap height: Allow a height of 25 mm (1") for every 250 Pa of duct pressure (e.g. Open tundish (not supplied) 100 mm (4") for 1000 Pa duct pressure).

  • Page 30: Water Installation (External Installation)

    4.4.3 Water installation (external installation) Stages Connection layout (box rows) distribution hoses Distribution hoses ø15 mm (0.625") constant slope (no sagging) Pressure equalisation pipe (mandatory, not supplied) Feed through (supplied) Shut-off valve (supplied) 2...5 bar Drain pipe vent (mandatory, not supplied), highest point of vent tube must be above max.

  • Page 31: Mounting The Control Unit

    The control unit should ideally be positioned as close to the evaporative module as possible for ease of servicing and maintenance. Note: the hydraulic module of Nortec ME Controls is equipped with a 5 m (16.4’) 14-core electrical inter-connecting cable for connection to the control unit. Make sure the control unit is mounted within the range of the inter-connecting cable.

  • Page 32: Mounting The Control Unit

    ( 8 . 1 " ) ( 2 . Fig. 19: Mounting the control unit of Nortec ME Controls Mounting procedure: 1. Mark the attachment points for the upper and lower wall support at the desired position with the help of a level.

  • Page 33: Electrical Installation

    The electrical installation must be carried out according to the wiring diagrams (see chapter 4.5.2 – Wiring diagram Nortec ME Control), 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 34 – All cables from the hydraulic module mounted inside the AHU/air duct must be lead via appropriate cable gland(s) out of the AHU/air duct. – Ensure cables are secured in such a way that the insulation is not damaged by sharp edges and so that they do not create a trip hazard.

  • Page 35: Wiring Diagram Nortec Me Control

    4.5.2 Wiring diagram Nortec ME Control Installation...
  • Page 36 Legend wiring diagram Nortec ME Control Driver board Control board Ventilation interlock Max. humidity monitor Air flow monitor Temperature and conductivity measuring Sensor temperature and conductivity measuring Level sensor dosing pump (option) Demand or humidity/temperature signal External On/Off switch (external enable)

  • Page 37: Installation Work

    Control signal (Y) Note: the control settings must be done via the control software of the Nortec ME Control. Please refer to the operation manual of the Nortec ME Control. External continuous humidity or temperature con-...
  • Page 38 Temperature sensor A temperature sensor is to be connected to the contacts “TMP” (+) and “GND” (–) of the terminal block “X16” on the driver board. The admissible signal values can be 24/10V found in the technical data table in the operation manual. The connecting cable must either be fed through the rectangular cable feed through or a free cable gland 24V E...
  • Page 39 External safety circuit To guarantee the safety of the humidification/cooling system, monitoring the operation by means of a safety circuit “K1” is an absolute requirement. To accomplish this, the potential-free contacts of ex- ternal moni t or ing devices (e.g. ventilation interlock “B1”, safety high limit humidistat “B2”, airflow monitor “B3”, etc.) are connected in series to the contacts “SC1”...
  • Page 40 1 2 3 4 5 6 9 10 – “Running” (Humidification/Cooling): This relay closes as soon as the Nortec ME is hu- midifying/cooling. Control unit – “Unit on”: This relay closes as soon as the voltage supply to the control unit of the Nortec ME is switched on.
  • Page 41 Mains voltage supply CAUTION! Before connecting the mains voltage sup- ply, make sure the voltage indicated on the rating plate meets the local line voltage. Otherwise, do not connect the control unit. Connect mains voltage supply 100...240 V/1~/50...60 Hz in accordance with the wiring diagram, to the terminal SUPPLY block “SUPPLY”...

  • Page 42: Appendix

    “Effluent treated water”, must be treated by an appropriate water treatment method and risk assessed to ensure it is safe and suitable for use in the Nortec ME unit. It is the responsibility of the user to ensure that the water supply system is part of a managed, hygiene monitored water system, risk assessed and complies with the local regulations and bylaws.
  • Page 43 Bromate Cadium Chromium Cyanide 1,2-dichloroethane Epichlorohydrin Fluoride Lead Mercury Nickel Pesticides Polycyclic aromatic hydrocarbons Selenium Tetrachloroethene and Trichloroethene Trihalomethanes Vinyl chloride Water Monitoring The Nortec ME water system must be monitored for hygiene as part of the maintenance programme. Appendix...
  • Page 48 CONSULTING, SALES AND SERVICE: U.S.A. 826 Proctor Avenue Ogdensburg, NY 13669 CANADA 2740 Fenton Road Ottawa, Ontario K1T 3T7 TEL: 1.866.NORTEC1 FAX: 613.822.7964 EMAIL: nortec@humidity.com WEBSITE: www.humidity.com...

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