Nortec ME Direct Feed Installation
2579082 EN 1412
READ AND SAVE THESE INSTRUCTIONS
INSTALLATION MANUAL
Adiabatic air humidification/air cooling system
Nortec ME Direct Feed
Humidication and Evaporative Cooling
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.
Liability Notice
Condair Plc does not accept any liability due to incorrect installation or operation of the equipment or due to the
use of parts/components/equipment that are not authorized by Condair Plc.
Copyright Notice
Copyright 2014, Condair Plc All rights reserved.
Technical modications reserved
Contents
1 Introduction 4
1.1 General 4
1.2 Notes on the installation manual 4
2 For your safety 6
3 Important notes on installation 8
3.1 Delivery 8
3.2 Storing/Transportation/Packaging 8
3.3 Product designation / Which model do you have 9
3.4 UL approved installation 9
4 Installation 10
4.1 Installation overviews 10
4.1.1 Typical installation Nortec ME Direct Feed (internal installation) 10
4.1.2 Typical installation Nortec ME Direct Feed (external installation) 11
4.2 Mounting the evaporative module 12
4.2.1 Notes on positioning the evaporative module 12
4.2.2 Installation procedure evaporative module 14
4.3 Mounting the Hydraulic manifold 24
4.3.1 Mounting the Hydraulic manifold (internal installation) 24
4.3.2 Mounting the Hydraulic manifold (external installation) 25
4.4 Water installation 27
4.4.1 Notes on water installation 27
4.4.2 Water installation (internal installation) 29
4.4.3 Water installation (external installation) 30
4.5 Mounting the optional control unit 31
4.5.1 Notes on positioning the control unit 31
4.5.2 Mounting the optional control unit 32
4.6 Electrical installation 33
4.6.1 Notes on electrical installation 33
4.6.2 Electrical installation Nortec ME Direct Feed 35
4.6.2.1 Wiring diagram Nortec ME Direct Feed with stage control 35
4.6.2.2 Installation work Nortec ME Direct Feed with stage control 36
4.6.2.3 Wiring diagram Nortec ME Direct Feed with optional On/Off control unit 40
4.6.2.4 Installation work Nortec ME Direct Feed with On/Off control 41
5 Appendix 43
5.1 Inlet water quality requirements 43
3Contents
1 Introduction
1.1 General
We thank you for having purchased the Nortec ME Direct Feed Evaporative Humidier and Cooler
(Nortec ME Direct Feed for short).
The Nortec ME Direct Feed incorporates the latest technical ad van ces and meets all recognized safety
standards. Nevertheless, improper use of the Nortec ME Direct Feed 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 Nortec ME Direct Feed, please observe and
comply with all information and safety instructions contained in the present documentation as well as in
the separate documentations of the components installed in the humidication system.
If you have questions after reading this documentation, please contact your Nortec representative. They
will be glad to assist you.
1.2 Notes on the installation manual
Limitation
The subject of this installation manual is the Nortec ME Direct Feed Evaporative Humidier and
Cooler
operation of the equipment. 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 Direct Feed and is meant for
well trained personnel being sufciently qualied for their respective work.
Please note, some illustrations in this manual may show options and accessories which may not be
supplied as standard or available in your country. Please check availability and specication details with
your Nortec representative.
The installation manual is supplemented by various separate items of documentation (such as the operation manual), which are included in the delivery as well. Where necessary, appropriate cross-references
are made to these publications in the installation manual.
. The various options and accessories are only described insofar as is necessary for proper
4 Introduction
Symbols used in this manual
CAUTION!
The catchword “CAUTION” used in conjunction with the caution symbol in the circle designates notes
in this installation manual 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 installation manual that, if neglected, may cause injury to persons.
DANGER!
The catchword “DANGER” used in conjunction with the general caution symbol designates safety and
danger notes in this installation manual that, if neglected, may lead to severe injury or even death
of persons.
Safekeeping
Please safeguard this installation manual in a safe place, where it can be immediately accessed. If the
equipment changes hands, the documentation must be passed on to the new operator.
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.
5Introduction
2 For your safety
General
Every person working with the Nortec ME Direct Feed must have read and understood the installation
manual and the operation manual of the Nortec ME Direct Feed before carrying out any work.
Knowing and understanding the contents of the installation manual and the operation manual is a basic
requirement for protecting the personnel against any kind of danger, to prevent faulty operation, and to
operate the unit safely and correctly.
All ideograms, signs and markings applied to the unit must be observed and kept in readable state.
Qualication of personnel
All work described in this installation manual may only be carried out by specialists who are well
trained and adequately qualied and are authorized by the customer.
For safety and warranty reasons any action beyond the scope of this manual must be carried out only
by qualied personnel authorised by the manufacturer.
It is assumed that all persons working with the Nortec ME Direct Feed are familiar and comply with the
appropriate regulations on work safety and the prevention of accidents.
Intended use
The Nortec ME Direct Feed is intended exclusively for air humidication and air cooling in AHU's or
air ducts within the specied operating conditions (see operation manual Nortec ME Direct Feed). Any
other type of application, without the written consent of the manufacturer, is considered as not conforming
with the intended purpose and may lead to the Nortec ME Direct Feed becoming dangerous.
Operation of the equipment in the intended manner requires that all the information contained in this
installation manual are observed (in particular the safety instructions).
Danger that may arise from the Nortec ME Direct Feed
DANGER!
Risk of electric shock!
The optional Nortec ME control units contain live mains voltage. Live parts may be exposed
when the control unit is open. Touching live parts may cause severe injury or danger to life.
Prevention: The control unit must be connected to the mains only after all mounting and installation
work has been completed, all installations have been checked for correct workmanship and the covers
has been relocated properly.
WARNING!
Some type of evaporative material is manufactured from glass bre. Though this material is not classied as hazardous, it is recommended that Personal Protection Equipment such as gloves, protective
clothing and eye protection are used during handling to protect the user from bres or dust. If dust is
generated during handling it is recommended that respiratory protection is worn.
6 For your safety
Correct lifting and handling
Lifting or handling of components must only be carried out by trained and qualied personnel. Ensure
that the lifting operation has been properly planned and risk assessed, and that all equipment has been
checked by a skilled and competent Health & Safety representative.
It is the customer's responsibility to ensure that operators are trained in handling heavy goods and to
enforce the relevant lifting regulations.
Preventing unsafe operation
All persons working with the Nortec ME Direct Feed 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.
Prohibited modications to the unit
No modications must be undertaken
Direct Feed without the express written consent of the manufacturer.
For the replacement of defective components use exclusively original accessories and spare parts
available from your Nortec representative.
on the adiabatic air humidication/air cooling system Nortec ME
7For your safety
3 Important notes on installation
3.1 Delivery
After receiving:
– Inspect shipping boxes for damage.
Any damages to the shipping boxes must be reported to the shipping company.
– Check packing slip to ensure all parts has been delivered.
All material shortages are to be reported to your Nortec representative within 48 hours after receipt
of the goods. Nortec assumes no responsibility for any material shortages beyond this period.
– Unpack the parts/components and check for any damage.
If parts/components are damaged, notify the shipping company immediately.
– Check whether the components are suitable for installation on your site according to the product
specication (refer to model key in the operation manual).
3.2 Storing/Transportation/Packaging
Storing
Until installation store the system components in its original packaging in a protected area meeting the
following requirements:
– Room temperature: 1 ... 40 °C
– Room humidity: 10 ... 75 %rh
Transportation
For optimum protection always transport the unit in the original packaging and use an appropriate lifting/
transporting device.
The packaged Nortec ME unit may be carried by fork lift from the underside, but caution should be exercised to ensure that the load is balanced before lifting. Refer to the rating plate for weights and measures.
WARNING!
It is the customer's responsibility to ensure that operators are trained in handling heavy goods and to
enforce the relevant lifting regulations.
Packaging
Keep the original packaging of the components for later use.
In case you wish to dispose of the packaging, observe the local regulations on waste disposal. Please
recycle packaging where possible.
8 Important notes on installation
3.3 Product designation / Which model do you have
The product designation and the most important unit data are found on the rating plate xed to the
evaporative module and the control unit.
Information regarding the rating plate and the product key can be found in the operation manual of the
Nortec ME Direct Feed.
3.4 UL approved installation
In order to maintain a UL approved installation, the following installation requirements must be met,
otherwise the Nortec ME system will not be approved under UL998.
1. The Nortec ME Direct Feed hydraulic manifold must be installed external to the air stream in accordance with the typical installation drawing in chapter 4.1.2 – Typical installation Nortec ME Direct
Feed (external installation).
2. All interconnecting piping and connections between the evaporative module and the hydraulic manifold, in direct contact with the air stream must be either copper or stainless steel.
Note: water quality should be considered when selecting an appropriate material (i.e. copper is not
suitable for RO water).
9Important notes on installation
4 Installation
4.1 Installation overviews
4.1.1 Typical installation Nortec ME Direct Feed (internal installation)
Hydraulic manifold
Air ow direction
AHU drain
1
Evaporative module
2
Control unit
3
Water drain line
Electrical
isolator
4
5
Water supply line
1 - Mounting the evaporative module --> see chapter 4.2 – Mounting the evaporative module
2 - Mounting the Hydraulic manifold --> see chapter 4.3 – Mounting the Hydraulic manifold
3 - Water installation --> see chapter 4.4 – Water installation
4 - Mounting the control unit --> see chapter 4.5 – Mounting the optional control unit
5 - Electrical installation --> see chapter 4.6 – Electrical installation
Fig. 1: Typical installation Nortec ME Direct Feed (internal installation)
10 Installation
4.1.2 Typical installation Nortec ME Direct Feed (external installation)
Air ow direction
AHU drain
1
Evaporative module
Hydraulic manifold
2
Water drain line
Control unit
3
Electrical
isolator
4
5
Water supply line
1 - Mounting the evaporative module --> see chapter 4.2 – Mounting the evaporative module
2 - Mounting the Hydraulic manifold --> see chapter 4.3 – Mounting the Hydraulic manifold
3 - Water installation --> see chapter 4.4 – Water installation
4 - Mounting the control unit --> see chapter 4.5 – Mounting the optional control unit
5 - Electrical installation --> see chapter 4.6 – Electrical installation
Fig. 2: Typical installation Nortec ME Direct Feed (external installation)
11Installation
4.2 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:
– The AHU/air duct oor must be designed with a loading capacity capable of supporting the evapo-
rative module’s weight. The weight of the evaporative module can be found on the rating plate.
– In the area where the evaporative module is installed the oor of the AHU/air duct must offer a plane
support (lengthwise and crosswise).
– The evaporative module must be installed in a waterproof section of the AHU/air duct.
– Downstream, directly after the evaporative module a drain pan with provision for running water
to waste must be installed. The drain must be connected via a drain trap to the waste water line of
the building. The drain trap must be sufciently high and must be lled with water prior to commissioning, so that the drain trap is not emptied by the air pressure in the duct. The drain pan and the
drain trap must be accessible for cleaning and disinfection as part of the periodic maintenance of
the system.
– For installation and maintenance sufciently large access doors before and after the evaporative
module must be available in the AHU/air duct.
– The supply air must be ltered. We recommend to install an air lter with quality standard F7 (EU7)
or better before the evaporative module. If no air lter or an air lter with lower quality is installed an
increased maintenance requirement will result.
– An even air ow over the full cross section of the evaporative module must be guaranteed. If
necessary, rectiers or perforated plates must be installed.
– The evaporative module must be positioned on upstands (supplied) to allow to install the drain pipe
with a downslope through the side wall of the AHU/air duct.
– In case of low ambient temperature the AHU/air duct must be insulated to prevent the moist air from
condensing inside the duct.
– If the AHU is equipped with a heater, make sure it is at least 600 m (23.6") away from the evaporative
module.
– If the face velocity exceeds 3.5 m/s (689 fpm), the optional droplet separator cassettes must be
installed.
– Appropriate clearance must be available for the hydraulic manifold (and associated plumbing) when
installing externaly.
12 Installation
– For inspection, commissioning and maintenance we recommend a minimum free space of 600 mm
(24") before and after the evaporative module.
Air ow direction
a
395 mm / 15.6"
Recommended service access
600 mm / 24"
Dimension “a”:
ME Direct Feed (internal mounting): 111 mm (4.4")
ME Direct Feed (external mounting): 111 mm (4.4")
Fig. 3: Positioning of the evaporative module
Recommended service access
600 mm / 24"
(min. 200 mm / 7.9")
13Installation
4.2.2 Installation procedure evaporative module
1. Mounting the tank upstands to the tank:
• Mounting the tank upstands supplied by Nortec: x tank upstands to the tank as shown in the
gure below using the nuts (M8, AF: 13 mm) and washers supplied. Do not tighten the nuts.
14 Installation
Fig. 4: Mounting the tank upstands to the tank
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 position 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.
• Align the tank to the centre of the duct and perpendicular to the duct walls. When aligned fix tank
upstands to the duct floor.
CAUTION!
The installer must take appropriate measures to ensure that the duct oor remains water proof
once the tank upstands has been xed to the duct oor.
• Then, adjust the tank with the leveling nuts lengthwise and crosswise exactly horizontal using a
level. When adjusted, tighten the leveling nuts.
Fig. 5: Mounting the tank
=
=
15Installation
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