nor-tec ME Series User manual

2579081 EN 1412
Humidication and Evaporative Cooling
READ AND SAVE THESE INSTRUCTIONS
INSTALLATION MANUAL
Adiabatic air humidification/air cooling system
Nortec ME Control

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: [phone]
FAX: [phone]
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 modications reserved

3Contents
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 Control (internal installation) 10
4.1.2 Typical installation Nortec ME Control (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 module 24
4.3.1 Mounting the hydraulic module (internal installation) 24
4.3.2 Mounting the hydraulic module (external installation) 25
4.4 Water installation 27
4.4.1 Notes on water installation 27
4.4.2 Water installation (internal installation) 28
4.4.3 Water installation (external installation) 30
4.4.4 Mounting the control unit 31
4.4.5 Notes on positioning the control unit 31
4.4.6 Mounting the control unit 32
4.5 Electrical installation 33
4.5.1 Notes on electrical installation 33
4.5.2 Wiring diagram Nortec ME Control 35
4.5.3 Installation work 37
5 Appendix 42
5.1 Inlet water quality requirements 42

4Introduction
1 Introduction
1.1 General
We thank you for having purchased the Nortec ME Control Evaporative Humidier and Cooler (Nortec
ME Control for short).
The Nortec ME Control incorporates the latest technical ad van ces and meets all recognized safety
standards. Nevertheless, improper use of the Nortec ME Control 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 Control, 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 humidication 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 Control Evaporative Humidier and
Cooler. The various options and accessories are only described insofar as is necessary for proper
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 Control and is meant for well
trained personnel being sufciently qualied 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 specication details with
your Nortec representative.
The installation manual is supplemented by various separate items of documentation (such as the opera-
tion manual), which are included in the delivery as well. Where necessary, appropriate cross-references
are made to these publications in the installation manual.

5Introduction
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.

6For your safety
2 For your safety
General
Every person working with the Nortec ME Control must have read and understood the installation manual
and the operation manual of the Nortec ME Control 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.
Qualication of personnel
All work described in this installation manual may only be carried out by specialists who are well
trained and adequately qualied 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 qualied 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.
Intended use
The Nortec ME Control is intended exclusively for air humidication and air cooling in AHU's or air
ducts within the specied operating conditions (see operation manual Nortec ME Control). 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 Control 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 Control
DANGER!
Risk of electric shock!
The Nortec ME control unit (and the optional submerged UV system) contain live mains voltage.
Live parts may be exposed when the control unit (or the terminal box of the optional submerged
UV system) 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 classi-
ed 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.

7For your safety
Correct lifting and handling
Lifting or handling of components must only be carried out by trained and qualied 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 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.
Prohibited modications to the unit
No modications must be undertaken on the Nortec ME Control 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.

8Important notes on installation
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
specication (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 exer-
cised 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.

9Important 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 Control.
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 Control hydraulic unit must be installed external to the air stream in accordance with
the typical installation drawing in chapter 4.1.2 – Typical installation Nortec ME Control (external
installation).
2. All interconnecting piping and connections between the evaporative module and the hydraulic unit,
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).
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.

10 Installation
4 Installation
4.1 Installation overviews
4.1.1 Typical installation Nortec ME Control (internal installation)
1 - Mounting the evaporative module --> see chapter 4.2 – Mounting the evaporative module
2 - Mounting the hydraulic module --> see chapter 4.3 – Mounting the hydraulic module
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)
3
4
5
1
2
Evaporative module
Hydraulic module
Water supply line
Water drain line
Control unit
Electrical
isolator
Air ow direction
AHU drain
Drain vent

11Installation
4.1.2 Typical installation Nortec ME Control (external installation)
1 - Mounting the evaporative module --> see chapter 4.2 – Mounting the evaporative module
2 - Mounting the hydraulic module --> see chapter 4.3 – Mounting the hydraulic module
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)
1
2
5
3
4
Evaporative module
Hydraulic module Water supply line
Water drain line
Control unit
Electrical
isolator
Air ow direction
AHU drain
Pressure equalisation
Drain vent

12 Installation
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 sufciently high and must be lled with water prior to commis-
sioning, 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 sufciently 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 will result.
– An even air ow over the full cross section of the evaporative module must be guaranteed. If
necessary, rectiers 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 mm (24") 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 module (and associated plumbing) when
installing externally.

13Installation
– For inspection, commissioning and maintenance we recommend a minimum free space of 600 mm
(24") before and after the evaporative module.
Air ow direction
Recommended service access
600 mm / 24"
(min. 200 mm / 7.9")
Recommended service access
600 mm / 24"
a395 mm / 15.6"
Dimension “a”:
ME Control (internal mounting): 272 mm (10.7")
ME Control (external mounting): 111 mm (4.4")
Fig. 3: Positioning of the evaporative module
CAUTION!
The ME 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.

14 Installation
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.
Fig. 4: Mounting the tank upstands to the tank

15Installation
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.
• 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 to. When adjusted, tighten the leveling nuts.
Fig. 5: Mounting the tank
==

16 Installation
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. Then, tighten the nuts.
Fig. 6: Fix frame to tank

17Installation
4. Fix cross member of frame to AHU/duct ceiling:
• Fix the cross member to the AHU/duct ceiling using appropriate xings. Before tightening the
screws align the vertical supports exactly vertical using a level.
Fig. 7: Fix cross member to AHU/duct ceiling

18 Installation
5. Mount the blanking plates on the air inlet side (blanking plates available as option):
• Starting on each duct side on the bottom x the side blanking plates to the duct wall using ap-
propriate xings. Before fixing make sure the side blanking plates are aligned exactly vertical
and the free end of the blanking plates touches the middle of the corresponding vertical support.
• Starting on one side x the upper blanking plates to the duct ceiling using appropriate xings.
Before fixing make sure the upper blanking plates are aligned exactly perpendicular to the duct
walls and the free ends of the blanking plates touch the cross member of the frame.
• Starting on one side x the lower blanking plates to the duct oor using welding studs, washers
and nuts. Before fixing make sure the lower blanking plates are aligned exactly perpendicular
to the duct walls and the free ends of the blanking plates touch the tank wall.
CAUTION!
The installer must take appropriate measures to ensure that the duct oor remains water proof
once the lower blanking plates has been xed to the duct oor.
Fig. 8: Mount the Nortec supplied blanking plates on the air inlet side

19Installation
6. 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
(according to rating plate)
Dimension A
(nominal)
F75 100 mm (4")
F85 150 mm (6")
F95 200 mm (8")
P85 200 mm (8")
P95 300 mm (12")
Fig. 9: Mounting the cross bar
A
Note: On larger systems the supplied
crossbar support(s) must be installed as
shown to prevent bending of the cross bar!

20 Installation
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. Mount distribution head assembly to the topmost evaporative cassettes:
• This step must only be carried out on evaporative cassettes with glass bre media: mount the
appropriate distribution cassettes onto the corresponding evaporative cassettes. Then, x the
distribution cassettes to the evaporative cassettes using the plastic rivets supplied.
• Mount the appropriate distribution heads onto the corresponding evaporative cassettes or dis-
tribution cassettes respectively. Then, x the distribution heads to the evaporative cassettes or
distribution cassettes respectively using the plastic rivets supplied.
Evaporative cassettes with glass bre Evaporative cassettes with polyester
Fig. 10: Mount distribution head assembly to the topmost evaporative cassettes