Condair ME Series, ME Control Installation Manual

2579081-B EN 1901

READ AND SAVE THESE INSTRUCTIONS

INSTALLATION MANUAL

Adiabatic air humidification/air cooling system
Condair ME Control

Humidication and Evaporative Cooling

Thank you for choosing Condair

Installation date (MM/DD/YYYY):

Commissioning date (MM/DD/YYYY):

Site:

Model:

Serial number:

Contact

Condair Ltd.
2740 Fenton Road, Ottawa, Ontario K1T3T7
TEL: [phone], FAX: [phone]
EMAIL: [e-mail], WEBSITE: www.condair.com

Proprietary Notice

This document and the information disclosed herein are proprietary data of Condair Ltd. Neither this document, nor
the information contained herein shall be reproduced, used, or disclosed to others without the written authorization
of Condair Ltd., except to the extent required for installation or maintenance of recipient's equipment.

Liability Notice

Condair Ltd. 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 Ltd.

Copyright Notice

© Condair Ltd., All rights reserved.

Technical modications 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 8

3.1 Inspection of the 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 Condair ME Control (internal installation) 10

4.1.2 Typical installation Condair 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 15

4.3 Mounting the hydraulic module 28

4.3.1 Mounting the hydraulic module (internal installation) 28

4.3.2 Mounting the hydraulic module (external installation) 29

4.4 Mounting the wall feed through plates 32

4.5 Water installation 36

4.5.1 Notes on water installation 36

4.5.2 Water installation (internal installation) 39

4.5.3 Water installation (external installation) 40

4.5.4 Mounting the control unit 41

4.5.5 Notes on positioning the control unit 41

4.5.6 Recommended access requirements of the control unit 41

4.5.7 Mounting the control unit 42

4.6 Electrical installation 43

4.6.1 Notes on electrical installation 43

4.6.2 Wiring diagram Condair ME Control 45

4.6.3 Installation work 47

5 Appendix 52

5.1 Inlet water quality requirements 52

3Contents

1 Introduction

1.1 General

We thank you for having purchased the Condair ME Control Evaporative Humidier and Cooler
(Condair ME Control for short).

To ensure a safe, proper, and economical operation of the Condair 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. Improper use of the
Condair ME Control may result in danger to the user or third parties and/or impairment of material assets.

If you have questions after reading this documentation, please contact your Condair representative.
They will be glad to assist you.

1.2 Notes on the installation manual

Limitation

The subject of this installation manual is the Condair ME Control Evaporative Humidier 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 Condair 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 Condair 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 Condair representative.

Language versions

This installation manual is available in various languages. Please contact your Condair representative
for information.

5Introduction

2 For your safety

General

Every person working with the Condair ME Control must have read and understood the installation
manual and the operation manual of the Condair 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 only be carried out
by personnel with appropriate industry recognized qualications or training.

It is assumed that all persons working with the Condair ME Control are familiar and comply with the
appropriate local regulations on work safety and the prevention of accidents.

Intended use

The Condair 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 Condair 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 Condair 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 Condair ME Control

DANGER!
Risk of electric shock!

The Condair 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.

6 For your safety

Correct lifting and handling

Lifting or handling of components always carries an element of risk, and therefore must only be carried
out by trained and qualied personnel. Ensure that any lifting operations have been fully planned and risk
assessed. All equipment should be 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 Condair 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 Condair 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 Condair representative.

7For your safety

3 Important notes

3.1 Inspection of the 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 Condair representative within 48 hours after receipt
of the goods. Condair assumes no responsibility for any material shortages beyond this period.

– Unpack the parts/components and check for any damage.

It is particularly important that the tank, structural components, and xings (such as studs) are
inspected as damage to these items could affect the structural integrity of the system. 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 of the product, always transport the unit in its original packaging. The packaged
Condair ME unit is able to be transported by trained personnel, using an appropriate lifting/transporting
device from the underside.

WARNING!

The evaporative module must not be transported with the optional droplet separators tted.

WARNING!

It is the customer's responsibility to ensure that operators are trained in handling heavy goods and that
the operators comply with the appropriate regulations on work safety and the prevention of accidents.

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

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
Condair ME Control.

3.4 UL approved installation

In order to maintain a UL approved installation, the following installation requirements must be met,
otherwise the Condair ME system will not be approved under UL 998.

1. The Condair ME Control hydraulic unit must be installed external to the air stream in accordance
with the typical installation drawing in chapter 4.1.2.

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, stainless steel or brass.
Note: water quality should be considered when selecting an appropriate material (i.e. copper is not
suitable for RO water).

3. The Condair ME Control unit contains a large reservoir of water when in operation. Install the ME
unit where there is no risk of water damage, otherwise make provisions to contain any leakage.

4. The Condair ME Control evaporative module must have either bre or cooling media types installed.
UL 998 is not valid if the Condair ME Control evaporative module has polyester media installed.

9Important notes

4 Installation

4.1 Installation overviews

4.1.1 Typical installation Condair ME Control (internal installation)

Hydraulic module

Air ow direction

AHU drain

1

Evaporative module

2

Control unit

3

Drain vent

Water drain line

4

Electrical

isolator

5

Water supply line

1 - Mounting the evaporative module --> see chapter 4.2
2 - Mounting the hydraulic module --> see chapter 4.3
3 - Water installation --> see chapter 4.5
4 - Mounting the control unit --> see chapter 4.5.4
5 - Electrical installation --> see chapter 4.6

Fig. 1: Typical installation Condair ME Control (internal installation)

10 Installation

4.1.2 Typical installation Condair ME Control (external installation)

Air ow direction

AHU drain

1

Evaporative module

Hydraulic module

2

Drain vent

Water drain line

4

Control unit

3

Electrical

isolator

5

Water supply line

Pressure equalization

1 - Mounting the evaporative module --> see chapter 4.2
2 - Mounting the hydraulic module --> see chapter 4.3
3 - Water installation --> see chapter 4.5
4 - Mounting the control unit --> see chapter 4.5.4
5 - Electrical installation --> see chapter 4.6

Fig. 2: Typical installation Condair ME Control (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 evapora-

tive module’s weight.

– 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 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 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 evapora-

tive module.

– If the evaporative module includes the optional droplet separator cassettes for high air velocities,

then the droplet separator cassettes must be installed.

– Appropriate clearance must be available for the hydraulic modules (and associated plumbing) when

installing externally.

– For commissioning and maintenance we recommend a minimum of 600 mm (24") of free space

after the evaporative module.

WARNING!

Consideration should be given to the amount of space required after the evaporative module for
access equipment, particularly for taller systems as personnel will require safe access to the top
of the evaporative module.

– For inspection we recommend 600 mm (24") of free space before the evaporative module. If inspec-

tion access is not required before the module, a minimum clearance of 200 mm (7.9") is acceptable
provided any heater is at least 600 mm (24") away from the evaporative module.

12 Installation

Air ow direction

a

Recommended service access

min. 600 mm / 24"

Dimension "a":
ME Control (internal mounting): 272 mm / 10.7"
ME Control (external mounting): 111 mm / 4.4"

Dimension "b":
F-Type bre cassettes F75/F85/F95: 395 mm / 15.6"
C-Type bre cassettes C85/C95: 525 mm / 20.7"
Polyester cassettes P85/P95: 525 mm / 20.7"

b

Fig. 3: Positioning of the evaporative module (centre drain tank)

Recommended inspection access

600 mm / 24"

(min. 200 mm / 7.9" clearance)

13Installation

Air ow direction

a

Recommended service access

min. 600 mm / 24"

Dimension "a":
F-type bre cassettes F75/F85/F95: 395 mm / 15.6"
C-type bre cassettes C85/C95: 525 mm / 20.7"
Polyester cassettes P85/P95: 525 mm / 20.7"

Dimension "b":
F-type bre cassettes F75/F85/F95: 208 mm / 8.2"
C-type bre cassettes C85/C95: 273 mm / 10.7"
Polyester cassettes P85/P95: 273 mm / 10.7"

b

Recommended inspection access

600 mm / 24"

(min. 200 mm / 7.9" clearance)

Fig. 4: Positioning of the evaporative module (side drain tank)

CAUTION!

The ME evaporative module 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

WARNING!

A full risk assessment must be completed by suitably trained personnel prior to installing the ME unit.
There may be increased risk when installing systems that necessitate working at height.
The following risks should be considered (this list is not exhaustive, and there may be additional site
specic risks that will need to be considered):

– Electrical work
– Manual handling
– Musculoskeletal disorders
– Working at height
– Falling objects & objects dropped from higher levels
– Risks arising from the use of Mobile Elevated Work Platforms
– Risk of contact with ceilings, overhead items or asbestos roong while using access equipment
– Adverse weather conditions
– Unsuitable surface and ground
– Other equipment, machinary or supply pipework in the vicinity of the work area

Installation of the ME unit must only be carried out by trained personnel, and all installation equipment
must be checked by a skilled and competent health & safety representative.

15Installation

1. Mounting the tank upstands to the tank:

• Mounting the tank upstands supplied by Condair: x tank upstands to the tank as shown in
the gure below using the nuts (M8, AF: 13 mm) and washers supplied.

Fig. 5: Mounting the tank upstands to the tank

16 Installation

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.

• Check that the tank is lengthwise and crosswise exactly horizontal using a level.

Fig. 6: Mounting the tank

=

=

17Installation

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.

18 Installation

Fig. 7: Fix frame to tank

4. Fix cross member of frame to AHU/duct ceiling:

• Fix the cross member to the AHU/duct ceiling using appropriate xings (supplied as part of the
installation kit). Before tightening the screws (not supplied) align the vertical supports exactly
vertical using a level.

WARNING!

If the cross member is not secured to the AHU/duct ceiling there is a risk that the evaporative
module could fall over, potentially causing injury or damage.

Fig. 8: Fix cross member to AHU/duct ceiling

19Installation

5. Mount the blanking plates on the air inlet side (blanking plates available as option):

• Starting on each duct side at the bottom x the side blanking plates to the duct wall using ap­propriate xings. Before fixing make sure the side blanking plates are aligned exactly vertical
and the free end of the blanking plates touches the side 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. Also ensure
the ends of the blanking plates are touching the side blanking plates.

• Starting on one side x the lower blanking plates to the duct oor using appropriate fixings.
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. Also ensure the ends of the
lower blanking plates are touching the side blanking plates.

CAUTION!

The installer must take appropriate measures to ensure that the duct oor remains water proof
once the lower blanking plates have been xed to the duct oor.

20 Installation

Fig. 9: Mounting the optional Nordmann blanking plates on the air inlet side

6. Mounting the crossbar:

• This step must be carried out only on larger systems to prevent bending of the crossbar:
Fix the supplied crossbar support(s) to the tank using the M6 cross-head bolt and the two stop
nuts (M8, AF: 13 mm) according to the gure below.

Fig. 10: Mounting the crossbar support(s)

21Installation

• Put the cross bar on the corresponding cross bar bracket with a distance of "A" to the vertical
support (see table below). The cross bar should be positioned so that the evaporative cassettes
sit on the edge of the cross bar, and the slots in the side of the cross bar should face the air-off
side of the evaporative module as shown 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")

C85 200 mm (8")

C95 300 mm (12")

A

22 Installation

Fig. 11: Mounting the cross bar

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:

Note: The topmost evaporative cassettes will be the ones that are shortest (vertically)

• This step must only be carried out on evaporative cassettes with glass bre media: mount
the appropriate distribution cassettes onto the corresponding evaporative cassettes, by hooking
the return on the underside of the distribution cassette under the top strut of the evaporative
cassette.

• Mount the appropriate distribution heads onto the corresponding evaporative cassettes or dis­tribution cassettes respectively, by hooking the return on the underside of the distribution head
under the top strut of the cassette below. Then secure the distribution heads to the evaporative
cassettes using the locking clamps on the distribution heads.

1 2 3

Fig. 12: Mounting the distribution head assembly onto glass bre evaporative cassettes

1 2

Fig. 13: Mounting the distribution head assembly onto polyester evaporative cassettes

23Installation

9. Mount evaporative cassettes:

Note: to avoid damage to the evaporative cassettes during transit, we recommend that the evapora-

tive cassettes are tted on site.

• Before installing the evaporative cassettes sweep the interior of the tank.

• Starting with the tallest evaporative cassettes on the bottom and working up to the shortest
evaporative cassette on the top, hook the cassettes into the vertical supports. Make sure the
overlying cassettes slip properly into each other.
Note: The narrowest evaporative cassettes should be positioned near the center of the tank,
and the widest evaporative cassettes should be positioned at the right and left ends of the tank
(see Fig. 15).

24 Installation

Fig. 14: Mount evaporative cassettes

Widest

Narrowest

Tallest Shortest

Widest

1

Fig. 15: Mounting order and positioning of the evaporative cassettes

25Installation

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 separator cassettes during transit, the droplet separator cas­settes should be tted on site.

• Starting with the tallest droplet separator cassettes on the bottom, and working towards the
shortest cassettes at the top, rivet the banks of the droplet separator cassettes together using a
rivet gun with ø 3.2 mm (0.13") blind rivets. Make sure the overlying cassettes slip properly into
the subjacent cassettes.

Tallest Shortest

Fig. 16: Riveting the banks of the droplet separator cassettes together

26 Installation

• 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 aligns with evaporator cassette
metalwork.

Fig. 17: Mount the droplet separator banks

27Installation

4.3 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.

2. Then, slide the connector bore of the hydraulic module carefully onto the tank connector until it comes
to a stop.

3. With the help of a spirit level and the levelling feet on the bracket, align the hydraulic mod-
ule exactly horizontal in both planes, i.e. front to back and left to right. Then, x the hydraulic
module to the tank using the bracket, nuts (M8, AF: 13 mm) and washers supplied and tighten the
nuts.

28 Installation

Fig. 18: Mounting the hydraulic module (internal installation)

4.3.2 Mounting the hydraulic module (external installation)

Clearances to be observed

MINIMUM 300 MM (11.81")

CLEARANCE

RECOMMENDED FOR

SERVICE ACCESS

173.2 mm
(6.82")

272 mm
(10.71")

AHU WALL

MINIMUM 600 MM (23.62")

CLEARANCE

RECOMMENDED FOR

SERVICE ACCESS

DETAIL A

TYPICAL HYDRAULIC

MOUNTING POSITION

127.5 mm

10 mm

(0.39")

(5.02")

IF DRAIN EXITS THIS SIDE:

120 mm (4.72")

ELSE

25 mm (0.98")

8.5 mm
(0.33")

10 mm

(0.39")

DETAIL A

112.5 mm

(4.43 ")

300.7 mm
(11.84")

WHEN PLANNING THE INSTALLATION OF A ME CONTROL
SYSTEM (WITH EXTERNAL HYDRAULICS) THE CLEARANCE
REQUIRED (OUTSIDE THE AHU) FOR THE FOLLOWING SHOULD
BE CONSIDERED:

• DISTRIBUTION HOSES

• PRESSURE Equalization

• FEED THROUGH PLATES

• INLET ASSEMBLY

• DRAIN PLUMBING

• DRAIN TRAP

156.8 mm
(6.17")

Ø80 mm (3.15")
HOLE

HYDRAULIC MOUNTING

(4.43")

112.5 mm

284.3mm
(11.19")

IF DRAIN EXITS THIS SIDE:

120 mm (4.72")

25 mm (0.98")

BRACKET

ELSE

127.5mm

82 mm

25 mm

(5.02")

(3.23")

(0.98")

Fig. 19: Clearances to be observed when mounting the hydraulic module externally

29Installation

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 centre drain systems or ø65 mm (2.6") for side drain systems) for the
drain pipe into AHU/duct wall.

3. Lead drain pipe (ø50 mm or ø54 mm (ø2.125") as applicable) through the hole in the AHU/duct wall
and connect it to the tank using the elbow union (both supplied as part of an optional tank coupling
kit for centre drain systems) or a push-on pipe tting (supplied with side drain systems).

4. Cut drain pipe to length.
Important: the end of the drain pipe must protrude 46 mm (1.8") minimum to 70 mm (2.75") maximum
from the AHU/duct wall. Otherwise correct mounting of hydraulic module is not possible.

5. Important: De-burr leading edge of drain pipe, to avoid damage to the rubber seal, or injury.

6. Seal between the pipe and the hole in the AHU/duct wall using silicone-free sealant.

7. Apply silicone free grease (e.g. gasket grease) onto the surface of the drain pipe and onto the
surface of the rubber sealing inside the connector of the hydraulic module.

8. Then, slide the connector bore of the hydraulic module carefully onto the drain pipe until it comes to
a stop.

9. With the help of a spirit level align hydraulic module exactly horizontal. Then, x the hydraulic
module to the AHU/duct wall using appropriate xings.

50 mm / 54 mm (2.125")

46 mm - 70 mm

1.8" - 2.125"

constant

downslope

1 to max. 2%

Fig. 20: Mounting the hydraulic module (external installation, centre drain tank)

30 Installation

Tank spigot

50 mm

Push-on pipe tting to connect

tank spigot to hydraulic module

64 mm

2.52"

Fig. 21: Mounting the hydraulic module (external installation, side drain tank)

31Installation

4.4 Mounting the wall feed through plates

1. Push out or pierce the centre of grommets that will have pipes or cable passing through them. Large
grommets are for pipe work, and small grommets are for cables.
Note: on feed through plates for use with externally installed hydraulics the large grommets are
spaced to match the stage pipe spacing on the hydraulic module, with a wider spaced large grommet
at the right end for the pressure equalization pipe.

2. Using the feed through plate as a guide, mark where the pipes and cables will feed through the AHU
wall.

32 Installation

Fig. 22: Mark feed through holes

(external installation)

Fig. 23: Mark feed through holes

(internal installation)

3. Drill holes through the AHU wall for the pipes and cables. Holes should be as small as possible for
the pipe or cable passing through them, and no larger than ø12 mm (ø0.47") for the (small) cable
grommets, and ø20 mm (ø0.79") for the (large) pipe work grommets.

Fig. 24: Drill feed through holes

(external installation)

Fig. 25: Drill feed through holes

(internal installation)

33Installation

4. Feed the pipe work (see notes in chapter 4.5) and cables through the outer feed through plate, then
through the AHU wall and nally through the feed through plate on the inner side of the AHU wall.

This side of the feed
through plate must face
against the AHU/duct wall

This side of the feed through
plate must face away from
the AHU/duct wall

Fig. 26: Mounting the feed through plate

(external installation)

Fig. 27: Mounting the feed through

plate (internal installation)

5. Screw the feed through plates to the AHU wall using appropriate xings.

This side of the feed
through plate must face
against the AHU/duct wall

This side of the feed through
plate must face away from
the AHU/duct wall

34 Installation

Fig. 28: Fixing the feed through plate to the

duct wall (external installation)

Fig. 29: Fixing the feed through plate to the

duct wall (internal installation)

35Installation

4.5 Water installation

4.5.1 Notes on water installation

The layout of the water piping (supply, drain and distribution piping) depends on the system version.
Refer to the corresponding chapter for detailed information and observe the following installation notes.

– Notes on water supply

– The water supply is to be carried out according to the gures found in chapter 4.5.2 and chap-

ter 4.5.3 and the applicable local regulations for water installations. The indicated connection

specications 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.

– The water supply pressure should be between 2-5 bar (29-72.5 psi), a pressure regulator should

be installed to control the pressure if there is a risk of the pressure exceeding this range.

– The installation material must be rated for the supply pressure and certied for use in drinking

water supply systems.

– The tting that is inserted in the water inlet port of the blue hydraulic module should not be sub-

jected to horizontal force. Ensure that the exible supply hose is not under tension, and will not
be subjected to excessive vibration while the AHU is in operation.

– Regarding supply water quality see appendix.

– The wall feed through for the water supply is provided as part of the installation kit.

Important: after installation the water supply pipe has to be sealed around the feed through
using silicone-free sealant, if not using a Condair supplied feed through.

– Important! To prevent new systems being contaminated with low quality water the entire

water supply line must be ushed and tested until the supply water and the bacteria
counts, are in line with the water quality specications, before connecting it to the hy-

draulic module. For water quality requirements refer to chapter 5.1.

CAUTION!

After cutting rigid pipes any sharp edges must be deburred, as sharp edges may damage the cou­plings and seals or cause injury.

36 Installation

– Notes on water drain

– The water drain is to be carried out according to the gures found in chapter 4.5.2 and chapter

4.5.3 and the applicable local regulations for water installations. The indicated connection speci-

cations must be observed. The installation material must be supplied by the customer.

– Make sure the drain line is installed with a constant down-slope down to the funnel.

– The drain pipe must not touch the funnel, allow air gap of min 20 mm (0.8").

– Make sure the drain pipe, the drain trap and the funnel are correctly xed and easily accessible

for inspections and cleaning purposes.

– Access hole for the drain pipe through the duct/AHU must be provided by the customer.

Important: after installation seal between drain pipe and AHU/duct wall using silicone­free sealant.

– The minimum inside diameter of the drain pipe must be maintained throughout the entire length!

– The drain pipe must be vented to the interior of the duct in accordance with the gures found in

chapter 4.5.2 and chapter 4.5.3. The end of the drain pipe vent that is within the duct must be

higher than the maximum tank water level.

– Note on pressure equalization for external mounted systems

The hydraulic module must be equipped with a pressure equalization pipe connected to the interior
of the duct to ensure the water level in the hydraulic module corresponds with the water level in the
tank inside the duct (see gure in chapter 4.5.3.

37Installation

– Notes on distribution piping

– The distribution piping is to be carried out according to the gures found in chapter 4.5.2 and

chapter 4.5.3 and the applicable local regulations for water installations. The indicated connec-

tion specications and connection layout must be observed.

– The distribution piping is made of 0.625" exible plastic hoses (supplied with internally installed

systems) or stainless steel pipe/rigid plastic pipes (which can be supplied as part of an optional
external installation kit).

– Make sure the distribution hoses have a constant downslope (no sagging) to the hydraulic module

and are not kinked over the entire length.

General notes on installation of the hoses (Internal Installation)

– Use the supplied 0.625" exible plastic hoses only. For hygienic reasons do not use other hoses

(except products supplied by your Condair distributor).

– When cutting hoses use an appropriate cutting tool providing straight, kink-free cuts.

CAUTION!

After cutting the hoses any sharp edges must be deburred otherwise the couplings may be
damaged.

– The hoses must be free of kinks and other damage (longitudinal scratches or misshaped ends,

in particular).

– When cutting hoses ensure at least 25 mm (1") is added to the required length, to ensure the

hoses can be fastened correctly (down to the stop) in the push-t couplings.

– Make sure the hoses are not kinked and pay attention to the mini mum bend radius of 100 mm (4").

– Do not lead hoses past hot system components (max. ambient temperature is 60 °C/140 °F).

– After installation verify correct fastening of all hoses. Correctly mount ed hoses can not be re-

moved without pressing the locking ring.

CAUTION!

In order to avoid damage caused by leaking water during operation, all hoses must be correctly
secured against accidently pulling out.

38 Installation

4.5.2 Water installation (internal installation)

Stages

(box rows)

2

3

4

5

Connection layout

distribution hoses

2 1

4 2 1 3 5

2 1 3

4 2 1 3 5

4 2 1 3

4 2 1 3 5

4 2 1 3 5

4 2 1 3 5

Distribution hoses ø0.625"

with constant slope

(no sagging)

Water supply

push-t connector

2...5 bar

Feed through
(optional kit)

Shut-off valve (supplied) with

compression connector ø0.625"

Drain pipe ø1.125" with constant

downslope 1...2 % (not supplied)

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.
100 mm (4") for 1000 Pa duct pressure).

Fig. 30: Water installation (internal installation)

Drain pipe vent (mandatory, not sup­plied), highest point of vent tube must
be above max. water level of tank

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)

Open funnel (not supplied)
Important: the drain pipes must not touch the
funnel - allow air gap of min 20 mm (0.8").
The minimum inner diameter of the drain line
after the funnel must be at least ø40 mm.

39Installation

4.5.3 Water installation (external installation)

Stages

(box rows)

2

3

4

5

Connection layout

distribution hoses

2 1

4 2 1 3 5

2 1 3

4 2 1 3 5

4 2 1 3

4 2 1 3 5

4 2 1 3 5

4 2 1 3 5

Distribution hoses ø0.625"

Feed through

(supplied)

Drain pipe vent (mandatory,
not supplied), highest point
of vent tube must be above
max. water level of tank

constant slope

(no sagging)

Shut-off valve (supplied) with
compression connector ø0.625"

Pressure equalization
pipe (supplied)

2...5 bar

Water supply

push-t connector

Drain pipe ø1.125" with constant

downslope 1...2 % (not supplied)

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.
100 mm (4") for 1000 Pa duct pressure).

Fig. 31: Water installation (external installation)

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)

Open funnel (not supplied)
Important: the drain pipes must not touch the
funnel - allow air gap of min 20 mm (0.8").
The minimum inner diameter of the drain line
after the funnel must be at least ø40 mm.

40 Installation

4.5.4 Mounting the control unit

min. 0.6 m - max. 1.90 m

4.5.5 Notes on positioning the control unit

Please observe the following notes when positioning the Condair ME control unit:

– The control unit can be mounted directly outside to the AHU/air duct or to a wall or stand (not sup-

plied).

– 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 the Condair ME Control is equipped with a 10 m (32.8’) multi-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.

– The control unit is protected according to IP21. Make sure the control unit is installed in a drip-proof

location and the admissible ambient conditions are complied with (see technical data in the opera­tion manual to the Condair ME Control).

– The power supply to the control unit must be equipped with an electrical isolator (not supplied) tted

within 1 m (39") for purposes of maintenance and emergencies. When positioning the control unit
make sure the electrical isolator can be mounted within that range.

4.5.6 Recommended access requirements of the control unit

0.6 m

23.6"

min. 0.4 m

min. 15.7"

190 mm

7.5"

min. 23.6" - max. 74.8"

min. 200 mm

min. 7.9"

17.7"

450 mm

315 mm

12.4"

min. 200 mm

min. 7.9"

max. 1.0 m
max. 39.4"

Fig. 32: Recommended access requirements of the control unit

41Installation

4.5.7 Mounting the control unit

Important: if multiple systems have been supplied to a site, ensure that the serial number on the control

panel corresponds to the serial number marked on the hydraulic module and the evaporative module.

315

)

"

52.5
")

(2.1

")

64.5

300

(2.5")

(11.8")

450

52.5

(2.1

(17.7")

(12.4

210

(8.3

")

A

Open

position

Closed

position

B

A

Open

position

B

Closed

position

Fig. 33: Mounting the control unit of Condair 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.

2. Fix the wall supports to the wall using appropriate xings. Before tightening the xings adjust the
wall supports horizontally using a level.

3. Move the locking hooks on the back of the control unit to open position (see detail "A" in Fig. 33).

4. Hang up the control unit onto the wall supports.

5. Move the locking hooks on the back of the control unit to closed position (see detail "B" in Fig. 33)
in order to x the control unit to the upper wall support.

42 Installation

4.6 Electrical installation

4.6.1 Notes on electrical installation

DANGER!
Risk of electric shock!

The control unit contains 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 isolated from the mains before commencing any installation work.

WARNING!

The electronic components inside the control unit are very sensitive to electrostatic discharge.
Before carrying out installations work inside the control unit, appropriate measures must be taken

to protect the electronic components against damage caused by electrostatic discharge (ESD
protection).

– All work concerning the electrical installation must be performed only by skilled and qualied

technical personnel (e.g. electrician or technicians with appropriate training) authorized by
the owner. It is the owner’s responsibility to verify proper qualication of the personnel.

– The electrical installation must be carried out according to the wiring diagram (see chapter 4.6.2),

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 led into the control unit via the cable feed throughs on the bottom side of the

control unit. The mains cable must be led into the control unit via the cable opening equipped with
the cable gland on the right side.

Cable gland power supply

Cable feed throughs control wiring

Fig. 34: Cable feed throughs control units

43Installation

– All cables from the hydraulic module mounted inside the AHU/air duct must be led 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.

– Observe and maintain maximum cable length and required cross section per wire according to local

regulations.

– The mains supply voltage must match the respective voltage stated on the rating plate.

44 Installation

4.6.2 Wiring diagram Condair ME Control

D.LVL

K2

X5

A

A

B

B

C

D

Hydraulic Module

X4

1

234

5

6

7

8

91011

12

13

14

16

24VDC

230VAC

T1 – T4

L

N

24VDC

230VAC

CS2

FAN

5

6

7

8

9

PE

N

X7

J2

J6

J10

J12

CR2032

BAT

D–

–

AIRT+
AIRT–
SHIELD

+

GND

GNDD+D–

1 2 3

4 5 6

7 8

9 10

J14

Error

Service

Running

Unit On

24V+

GND

24V IC

GND

GND

D+

JP/TR

Shield

Tmp bu
Tmp bk
Cnd wh
Cnd bn

–

–

+

+

GND

GND

J4

3V

J7

SD

A2A1

24V E

GND

GND

24V E

GND
24V E
LEAK
24V E
CS1
24V E
LVL DP
24V E

FQ+
GND
N FQ2
N FQ1
ERR FQ
24V P

5V P
24V P
PS5
PS4
GND

24V P
GND

L/24V P
N/GND
PE

DOSP+
DOSP–
PE
UV+
UV–
PE
PMP L
PMP N
PE
PE

X13X14X15.1X15.2X16

F2 (630 mAT)

B4

X11 X12

X20

X9X8 X10

F1 (6.3 AT)

H1

CS1

X7

RS485

RJ45

Ethernet

LS2

USB

LS1

B7

Y

B8

24/10 V

TMP

GND

HUM

24V E

Enable

J1

JP4: 24V

J2

JP5: 10V

J3

SC2

X1X2

SC1

24V 3

SF

X19

24V 2

24V 1
GND
GND
GND

24V SCB

X3X4

24V SCA
24V P
24V P

GND

Y5
Y6
Y7
Y8
Y9

Y10
Y1
Y2

24V P

Y11
Y4
Y3

24V P
PS1
PS2
PS3

X5

LEVEL/T

GND

B3K1B2

min.

B5

°C

B9

B1

Control unit

Q

N

NL

PE NL

NF

S3

NL1

NL1

F3

L N

D.PUMP U.V. SUPPLY

1 2 L N L N

F4

UV

M

PE L

100...240 V/1~/50..60 Hz

M1

B6

Fig. 35: Wiring diagram Condair ME Control

45Installation

Legend wiring diagram Condair ME Control

A1 Driver board
A2 Control board
B1 Ventilation interlock
B2 Max. humidity monitor
B3 Air ow monitor
B4 Temperature and conductivity measuring
B5 Sensor temperature and conductivity measuring
B6 Level sensor dosing pump (option)
B7 Demand or humidity/temperature signal
B8 External On/Off switch (external enable)
B9 Air temperature monitoring duct (option)
BAT Backup battery (CR2032, 3V)
CS1 Current sensor (UV lamp)
CS2 Current sensor (pump fault detection option)

Note: wires must pass through the sensor in the direction shown

D.LVL Terminal level switch dosing liquid tank
D.PUMP Terminal dosing pump
F1 Fuse mains supply (6.3 A slow acting)
F2 Fuse 10/24 VDC supply(630 mA slow acting)
F3 Internal fuse mains supply (6.3 A slow acting)
F4 External fuse mains supply (10 A slow acting)
FAN Internal cooling fan (large systems only)
H1 Remote operating and fault indication board (option)
J1 Cable bridge if no external On/Off switch is connected
J2 Cable bridge demand signal (for commissioning only)
J3 Cable bridge if no safety chain is connected
J4 Jumper for activating the terminating resistor for Modbus network (Jumper must be tted,

if Condair ME is the last unit in the Modbus network)

J7
JP4 Jumper tted= 24 V on X16 (JP5 removed)
JP5 Jumper tted= = 10 V on X16 (JP4 removed)
JP/TR Jumper tted on the last driver board
K1 External safety chain
K2 Cable harness from hydraulic module
LS1 Leakage monitoring board (option)
LS2 Sensor leakage monitoring (option)
M1 Dosing pump (option)
NF Mains lter
Q Electrical isolator
S3 On /Off switch control unit
SD Memory card
SF Snap ferrite (wrap cable 3 times through ferrite)
SUPPLY Terminal mains supply voltage
T1...T4 24V power supply (quantity varies with system size)
UV UV lamp (option)
U.V. Terminal UV lamp
X4 Terminal cable harness hydraulic module
X7 Not used
X5 Terminal current sensor (pump fault detection option)

Jumper tted: Modbus communication via RS 485 interface (J6)

46 Installation

4.6.3 Installation work

Note: for the connection of the available options please refer to the addendum manual of the corre­sponding option.

Control signal (Y)

Note: the control settings must be done via the control software of the Condair ME Control. Please
refer to the operation manual of the Condair ME Control.

JP5: 10V

JP4: 24V

X16

24 V
TMP
HUM
GND
24V E
Enable

External continuous humidity or temperature con­troller

An external continuous humidity or temperature controller
is to be connected to the contacts "HUM" (+) and "GND"
(–) of the terminal block "X16" on the driver board in ac­cordance with the wiring diagram. The admissible signal
values can be found in the technical data table in the
operation manual. The connecting cable must either be

24 V - voltage supply

fed through the rectangular cable feed through or a free
cable gland into the control unit.

Control unit

JP5: 10V

JP4: 24V

X16

Control unit

24/10V
TMP
HUM
GND
24V E
Enable

–

rh

24 V

P/PI

B7

24 V - voltage supply

–

rh

24 V

Y

HUM

B7

Note: If 24V supply is used for the external controller
Jumper "JP4: 24V" must be set and Jumper "JP5: 10V"
must be removed.

The shielding of the control signal must be connected
to terminal "GND".

Caution! If the shielding of the control signal is already
connected to a po ten tial or a grounded conductor,
do not connect it to terminal "GND".

Humidity sensor

A humidity sensor is to be connected to the contacts
"HUM" (+) and "GND" (–) of the terminal block "X16" on
the driver board. The admissible signal values can be
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
into the control unit.

Note: If 24V supply is used for the humidity sensor
Jumper "JP4: 24V" must be set and Jumper "JP5: 10V"
must be removed.

The shielding of the control signal must be connected
to terminal "GND".

Caution! If the shielding of the control signal is already
connected to a po ten tial or a grounded conductor,
do not connect it to terminal "GND".

47Installation

Control unit

JP5: 10V

JP4: 24V

X16

JP5: 10V

JP4: 24V

X16

24/10V
TMP
HUM
GND
24V E
Enable

24/10V
TMP
HUM
GND
24V E
Enable

–

Y

TEMP

B7

T

24 V

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
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
into the control unit.

24 V - voltage supply

Note: If 24V supply is used for the temperature sensor
Jumper "JP4: 24V" must be set and Jumper "JP5: 10V"
must be removed.

The shielding of the control signal must be connected
to terminal "GND".

Caution! If the shielding of the control signal is already
connected to a po ten tial or a grounded conductor,
do not connect it to terminal "GND".

24 VDC On/Off humidistat

A 24 VDC On/Off humidistat is to be connected to the
contacts "24V" and "HUM" of the terminal block "X16"
on the driver board. The connecting cable must either
be fed through the rectangular cable feed through or a
free cable gland into the control unit.

Note: for the 24 VDC On/Off control jumper "JP5: 10V"
must be removed and Jumper "JP4: 24V" must be set.

Control unit

ON/Off

B7

The shielding of the control signal must be connected
to terminal "GND".

Caution! If the shielding of the control signal is already
connected to a po ten tial or a grounded conductor,
do not connect it to terminal "GND".

48 Installation

External safety circuit

X1

J2

SC2

SC1

K1

Control unit

To guarantee the safety of the humidication/cooling
system, monitoring the operation by means of a safety
circuit "K1" is an absolute requirement.

To accomplish this, the potential-free contacts of ex­ternal moni t or ing devices (e.g. ventilation interlock "B1",
safety high limit humidistat "B2", airow monitor "B3", etc.)
are connected in series to the contacts "SC1" and
"SC2" of the terminal block "X1" on the driver board
in accordance with the wiring diagram. The connecting
cable must either be fed through the rectangular cable
feed through or a free cable gland into the control unit.

B1

External enable

J1

X16

Control unit

B3

B2

24/10V
TMP
HUM
GND
24V E
Enable

If, for whatever reason, no external monitoring devices
are connected, a cable bridge "J2" must be installed on
the contacts "SC1" and "SC2" of the terminal block "X1".

Do not apply any extraneous voltage to contacts "SC1"
and "SC2" via the contacts of the external monitoring
devices.

The cross-section of the connecting cable must comply
with the applicable local regulations (minimum 1 mm2).

The potential-free contact of an external enable switch
is connected to the contacts "24 V E" and "Enable"
of the terminal block "X16" on the driver board in ac­cordance with the wiring diagram. The connecting cable
must either be fed through the rectangular cable feed
through or a free cable gland into the control unit

If no external enable switch is connected, a cable bridge
"J1" must be installed on the contacts "24V E" and "En­able" of the terminal block "X16".

CAUTION! Do not apply any extraneous voltage to
terminals via the enable switch.

S2

49Installation

Connecting the multi-core inter-connecting cable from the hydraulic module

X5X4X7

K2

123456789101112131415

16

The multi-core inter-connecting cable "K2" from the

1 2 3 4 5 6 7 8 9 10 11 12 13 14

X4

1 2 3 4 5 6 7 8 9 10 11 12 13 14

hydraulic module is to be connected to terminal "X4"
according to the numbering label on terminal "X4". The
multi-core inter-connecting cable must be fed through
the rectangular cable feed through into the control unit.

The 10 m inter-connecting cable has to be cut to length

Control unit

K2

on site.

Once the multi-core inter-connecting cable from the hydraulic module has been cut to the required
length, set all the potentiometers on the distribution board to the number that corresponds to the length
of the inter-connecting cable ("K2") in metres.

Note: Potentiometer 4 is only present on systems over 3 m tall.

Interconnecting
cable length
(meters)

Potentiometer 1 Potentiometer 2Potentiometer 3

Potentiometer 4
(if applicable)

50 Installation

Connecting the remote operating and fault indication (option)

H1

The optional remote operating and fault indication board
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":

Error

Service

Running

1 2 3

4 5 6

7 8

Unit On

9 10

This relay is activated when the set service interval
has expired.

– "Running" (Humidication/Cooling):

This relay closes as soon as the Condair ME is hu-

Control unit

midifying/cooling.

– "Unit on":

This relay closes as soon as the voltage supply to
the control unit of the Condair ME is switched on.

The connecting cable must either be fed through the
rectangular cable feed through or a free cable gland into
the control unit.

The maximum contact loading is 250V/8A.

Appropriate suppressor modules are to be used for the
switching of relays and miniature contactors.

Mains voltage supply

CAUTION! Before connecting the mains voltage sup­ply, make sure the voltage indicated on the rating

F3

plate meets the local line voltage. Otherwise, do not
connect the control unit.

L N

Connect mains voltage supply 100...240 V/1~/50...60 Hz

SUPPLY

Control unit

in accordance with the wiring diagram, to the terminal
block "SUPPLY" in the control unit. The mains supply
cable must be led into the control unit via the cable gland
on right side on the bottom of the control unit.

F4

PE L

N

100...240 V/1~/50..60 Hz

The installation of the fuse F4 (10A, slow acting), the
electrical isolator "Q" (all pole disconnecting device

with a minimum contact clearance of 3 mm/0.12") and

Q

a fault current protection switch with 30 mA trigger cur­rent (by client) in the mains supply line are mandatory.

The electrical isolator must be mounted in direct proximity
of the control unit (max. distance 1 m/39.37") and must
be easily accessible in a height between 0.6 m/23.62"
and 1.9 m/74.8" (recommended: 1.7 m/66.93").

The cross-section of the mains cable must comply with the
applicable local regulations (min. 1.5 mm2/0.0023 sq.in.).

51Installation

5 Appendix

5.1 Inlet water quality requirements

Condair recommends that the Condair ME must be connected to a clean, wholesome (drinking water

quality) mains water supply. For areas of hard water and to minimise scale build up the water supply
may be treated by a reverse osmosis system (RO).

Reverse Osmosis

For Condair ME systems supplied with RO water it is recommended that the system is operated within
the following parameters. The use of RO water fed tanks and reservoirs is only permitted as part of a
managed and hygiene monitored water system and should form part of the water system risk assessment.

System Conductivity

Condair ME Control > 5 μS cm-1 at 20 °C (68 °F)

Other Water Supplies

There is a growing demand to utilise sustainable water sources to help overcome scarcity challenges
and recycle water. It is possible to use high-quality, treated efuent for non-wholesome applications.
The following gives guidance on reclaimed water quality that may be acceptable for use within the Con­dair ME. "Efuent 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 Condair 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.

Below are example water conditions that would allow a Condair ME to operate within specication.

Parameter Content in supply water Concern

Temperature < 20 °C (68 °F) Warm water favours growth of bacteria

Aluminium - No specic concerns

Ammonium < 0.50 mg/l Odour passed to air
Calcium < 300 mg/l Scale formation
Chloride < 300 mg/l Corrosion of stainless steel
Colour None Not directly a concern
Copper < 1 mg/l Deposits and corrosion stimulation
Conductivity < 650 μS cm-1 at 20°C (68 °F) Total hardness and scale formation.

pH 6.5 to 9.5 Acid or Alkali damage to equipment.

Iron < 0.5 mg/l

Manganese < 0.1 mg/l Deposit formation

Nitrate - No specic concerns

Nitrite - No specic concerns

Odour Acceptable to users Smell passed to air

Sulphate < 250 mg/l No specic comments

Sodium - No specic concerns

Total organic carbon - No specic concerns

Deposit formation on oxidation and a critical support
role in Legionella growth.

52 Appendix

Parameter Content in supply water Concern

Turbidity < 5 NTU No specic concerns

Colony count 22°C < 1000 cfu/ml Indicator of contaminated water supply

Coliform bacteria < 10 cfu/100 ml Indicator of poor water quality

Legionella bacteria < 50 cfu/1000 ml Risk of Legionella

Pseudomonas species < 10 cfu/100 ml Indicator of slime forming potential

DANGER!

Failure to ensure the quality of the supply water may endanger the health of individuals exposed to
the ME system, the air from the AHU/air duct, or the water from the ME system. Poor supply water
quality may also encourage the growth of micro-organisms (including the bacterium which causes
Legionnaire’s disease).

Controlled Substances

DANGER!

Many of the following controlled substances could present a risk to health; for example vinyl chloride
is highly toxic, ammable and carcinogenic and could be evaporated off the evaporative matrix from
contaminated water and passed to the airow. Therefore it is important to note that any supply water
coming from complex waste water which may contain the following contaminates should be carefully
risk assessed by a water treatment specialist.

Controlled substances

Clostridium perfringens (including spores)

Acrylamide

Antimony

Arsenic
Benzene
Benzo(a)pyrene
Boron
Bromate
Cadmium
Chromium
Cyanide
1,2-dichloroethane
Epichlorohydrin
Fluoride
Lead
Mercury
Nickel
Pesticides
Polycyclic aromatic hydrocarbons
Selenium
Tetrachloroethene and Trichloroethene
Trihalomethanes
Vinyl chloride

Water Monitoring

The Condair ME water system must be monitored for hygiene as part of the maintenance programme.

53Appendix

Notes

Warranty

Condair Inc. and/or Condair Ltd. (hereinafter collectively referred to as THE COMPANY), warrant for a
period of two years after installation or 30 months from manufacturer’s ship date, whichever date is earlier,
that THE COMPANY’s manufactured and assembled products, not otherwise expressly warranted, are
free from defects in material and workmanship. No warranty is made against corrosion, deterioration, or
suitability of substituted materials used as a result of compliance with government regulations.

THE COMPANY’s obligations and liabilities under this warranty are limited to furnishing replacement
parts to the customer, F.O.B. THE COMPANY’s factory, providing the defective part(s) is returned freight
prepaid by the customer. Parts used for repairs are warranted for the balance of the term of the warranty
on the original humidier or 90 days, whichever is longer.

The warranties set forth herein are in lieu of all other warranties expressed or implied by law. No liability
whatsoever shall be attached to THE COMPANY until said products have been paid for in full and then
said liability shall be limited to the original purchase price for the product. Any further warranty must be
in writing, signed by an ofcer of THE COMPANY.

THE COMPANY’s limited warranty on accessories, not of the companies manufacture, such as controls,
humidistats, pumps, etc. is limited to the warranty of the original equipment manufacturer from date of
original shipment of humidier.

THE COMPANY makes no warranty and assumes no liability unless the equipment is installed in strict
accordance with a copy of the catalog and installation manual in effect at the date of purchase and by
a contractor approved by THE COMPANY to install such equipment.

THE COMPANY makes no warranty and assumes no liability whatsoever for consequential damage
or damage resulting directly from misapplication, incorrect sizing or lack of proper maintenance of the
equipment.

THE COMPANY makes no warranty and assumes no liability whatsoever for damage resulting from
freezing of the humidier, supply lines, drain lines, or steam distribution systems.

THE COMPANY retains the right to change the design, specication and performance criteria of its
products without notice or obligation.

U.S.A.
826 Proctor Avenue
Ogdensburg, NY 13669

CANADA
2740 Fenton Road
Ottawa, Ontario K1T 3T7

TEL: [phone]
FAX: [phone]

EMAIL: [e-mail]
WEBSITE: www.condair.com