Nortec ME Direct Feed User Manual
2579080 EN 1412
READ AND SAVE THESE INSTRUCTIONS
OPERATION 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.Nortec.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 5
1.1 General 5
1.2 Notes on the operation manual 5
2 For your safety 7
3 Product Overview 10
3.1 Model overview 10
3.2 Product designation / Which model do you have 11
3.3 Construction of the system components 12
3.3.1 Construction of the evaporative module 12
3.3.2 Construction of the hydraulic manifold 13
3.4 System overviews 14
3.4.1 Typical system Nortec ME Direct Feed (internal installation) 14
3.4.2 Typical system Nortec ME Direct Feed (external installation) 15
4 Operation 18
4.1 Important notes on operation 18
4.2 Initial commissioning 19
4.3 Display and operating elements of Nortec control units 21
4.4 Start up for daily operation 22
4.5 Notes on operation 23
4.5.1 Important notes on operation 23
4.5.2 Recommended regular checks during operation 23
4.6 Decommissioning the system 24
5 Maintenance 25
5.1 Important notes on maintenance 25
5.2 Maintenance Intervals 26
5.3 Maintenance guide 26
5.4 Dismantling and installation of components for maintenance 28
5.4.1 Dismantling and installation of the evaporative module 28
5.5 Consumables Guide 28
5.6 Health and Safety Requirements 29
5.7 Routine Water Sampling and Testing 30
5.8 Cleaning and Disinfection 31
5.9 Cleaning and Disinfection Method Statement 32
6 Fault elimination 33
6.1 Malfunction list 33
6.2 Notes on fault elimination 34
3Contents
7 Taking out of service/Disposal 35
7.1 Taking out of service 35
7.2 Disposal/Recycling 35
8 Productspecications 36
8.1 Technical data 36
9 Appendix 37
9.1 Wiring diagram Nortec ME Direct Feed with stage control 37
9.2 Wiring diagram Nortec ME Direct Feed with optional On/Off control unit 38
4 Contents
1 Introduction
1.1 General
We thank you for having purchased the NortecMEDirectFeedEvaporativeHumidierandCooler
(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 operation manual
Limitation
ThesubjectofthisoperationmanualistheNortecMEDirectFeedEvaporativeHumidierand
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 operation manual is restricted to the operation, the maintenance and troubleshooting of the
Nortec ME Direct Feed and is meant for welltrainedpersonnelbeingsufcientlyqualiedfortheir
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 operation manual is supplemented by various separate items of documentation (such as the installation manual), which are included in the delivery as well. Where necessary, appropriate cross-references
are made to these publications in the operation 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 operation 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 operation 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 operation manual that, if neglected, may lead to severe injury or even death
of persons.
Safekeeping
Please safeguard this operation manual in a safe place, where it can be immediately accessed. If the
equipment changes hands, the operation manual must be passed on to the new operator.
If the operation manual gets mislaid, please contact your Nortec representative.
Language versions
This operation manual is available in various languages. Please contact your Nortec representative for
information.
6 Introduction
2 For your safety
General
Every person working with the Nortec ME Direct Feed must have read and understood the operation
manual of the Nortec ME Direct Feed before carrying out any work.
Knowing and understanding the contents of 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 components of the Nortec ME Direct Feed must be
observed and kept in readable state.
Qualicationofpersonnel
All work described in this operation manual may only be carried out by specialists who are well
trainedandadequatelyqualiedandareauthorizedbythecustomer.
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 local regulations on work safety and the prevention of accidents.
The Nortec ME Direct Feed may not be used by persons (including children) with reduced physical,
sensory or mental abilities or persons with lacking experience and/or knowledge, unless they are supervised by a person responsible for their safety or they received instructions on how to operate the system.
Children must be supervised to make sure that they do not play with the Nortec ME Direct Feed.
Intended use
The Nortec ME Direct Feed is intended exclusively for
or air ducts within the specied operating conditions. 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
operation manual are observed (in particular the safety instructions).
airhumidicationandaircooling inAHU's
7For your safety
Danger that may arise from the Nortec ME Direct Feed
DANGER!
Risk of electric shock!
The optional Nortec ME Direct Feed 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: Before carrying out any work on the Nortec ME Direct Feed switch off the control unit,
disconnect it from the mains via the electrical isolator and secure the electrical isolator in “Off” position
against inadvertent power-up.
DANGER!
Healthriskbecauseofinadequatehygiene!
Inadequately operated and/or poorly maintained evaporative humidication/cooling systems may
endanger health. When inadequately operated and/or poorly maintained micro-organisms (including
the bacterium which causes Legionnaire’s disease) may grow in the evaporative module, the water
tank and the water system of the Nortec ME Direct Feed and may affect the air in the AHU/air duct.
Prevention: the Nortec ME Direct Feed must strictly be operated and maintained in accordance with
this manual.
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.
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.
8 For your safety
Preventing unsafe operation
If it is suspected that safe operation is no longer possible, then the Nortec ME Direct Feed should
immediately be shut down and secured against accidental power-up according to chapter 4.6 –
Decommissioning the system. This can be the case under the following circumstances:
– if the Nortec ME Direct Feed is damaged
– if the Nortec ME Direct Feed is contaminated
– if the electrical installations are damaged
– if the Nortec ME Direct Feed is no longer operating correctly
– if connections and/or piping are leaking
All persons working with the Nortec ME Direct Feed must report any alterations to the system that may
affect safety to the owner without delay.
Prohibitedmodicationstotheunit
Nomodications must be undertaken on the Nortec ME 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.
9For your safety
3 Product Overview
3.1 Model overview
The standard version includes the evaporative module (75%, 85 % or 95 % efciency depending
on the cassette type) and a hydraulic manifold without valves (for internal or external installation).
To run the standard version with a On/Off control, the system must be equipped with an On/Off control
unit and the hydraulic manifold must be equipped with a drain valve, a supply valve, and a purge valve
as minimum. All components for extending the standard version to an On/Off control system are available as options (see table below) or must be supplied by the customer.
To run the standard version with a stage control, the system must be equipped with a stage control unit
and the hydraulic manifold must be equipped with a drain valve, a supply valve, a purge valve, and the
appropriate number of stage valves as minimum. All components for extending the standard version to
a stage control system are available as options (see table below) or must be supplied by the customer.
Options On/Off control Stage control
Fibre Media
Composite non particle-releasing glass bre media with anti-microbial impregnation and A2, S2, d0 (UL Class 1) re rating.
Available in 75% (100mm), 85% (150mm) and 95% (200mm) efciencies.
Polyester Media
Robust patented synthetic media with hygroscopic impregnation and DIN
EN53483 Class F1 re rating.
Available in 85% (200mm), 95% (300mm) efciencies.
Droplet Separator
Droplet Catching matrix increasing maximum face velocity limit without droplet carry-over from 3.5 m/s (689 fpm) to 4.5 m/s (886 fpm).
Evaporative module Blanking
Kit to secure Nortec ME and prevent air-bypass within the duct / AHU.
Leak Detection
Provides additional fault indication for the Nortec ME by monitoring for standing water detected in duct / AHU.
Stage valves
Valve kit which facilitates stage control of direct feed systems using customer
controls or the ME Direct Feed Stage Control Unit.
Available in 2, 3, 4 and 5 stage versions.
Inlet, drain and purge valve
Valve kit for customers who wish to create their own basic on/off direct feed
control system.
On/Off control unit
On/Off control unit for simple control of direct feed systems which includes
timed purge function to enhance system hygiene.
Stage control unit
Stage control unit for simple analogue control of direct feed systems which
includes timed purge function to enhance system hygiene.
● ●
● ●
● ●
● ●
● ●
––– ●
● ●
● –––
––– ●
10 Product Overview
3.2 Product designation / Which model do you have
The product designation and the most important unit data (e.g. serial number, Evaporative module
product key, etc.) are found on the rating plate xed on the left side of the evaporative module and on
the right side of the control unit (if applicable).
Fig. 1: Position of rating plate
Evaporative module product key
Product idencation
ME (media evaporator)
Product version (consecutive version number):
Width evaporative module in mm
Height evaporative module in mm
Material type and efciency evaporative cassettes:
F75= Glass bre 75 %
F85= Glass bre 85 %
F95= Glass bre 95 %
P85= Polyester 85 %
P95= Polyester 95 %
Rating Plate
Example:
ME-1-0900-1125-F95
11Product Overview
3.3 Construction of the system components
3.3.1 Construction of the evaporative module
6
5
4
3
7
8
2
Air ow direction
1
1 Upstands
2 Tank connector ø54 mm (2.125")
3 Rating plate
4 Droplet separator, mandatory for face velocity
>3.5 m/s (>689 fpm)
Fig. 2: Construction of the evaporative module
9
5 Evaporative cassettes (F75, F85, F95, P85 or P95)
6 Distribution heads
7 Blanking plates (option)
8 Mounting frame for evaporative cassettes
9 Water tank
12 Product Overview
Loading...