Condair MD Series Installation and operation manual

2600799-A EN 2011
Humidication and Evaporative Cooling
INSTALLATION AND COMMISSIONING
INSTRUCTIONS
Condair HumiLife – the efcient ERV solution
Condair MD
MD-EL-H
MD-FB-H
MD-WW-H
MD-HW-H

Thank you for choosing Condair
Please enter the system data listed below during commissioning.
Installation date (DD/MM/YYYY):
Commissioning date (DD/MM/YYYY):
Installation site:
Model:
Serial number:
Water treatment cartridge size:
Water preparation bypass stage setting:
Supply water hardness at the installation site:
Supply water pH value at the installation site:
Proprietary rights
This document and the information disclosed herein are proprietary data of Condair Group AG. These operating
instructions (including extracts hereof) may not be reproduced or passed on, nor may the contents thereof be used
or passed on to any third party without the written permission of the manufacturer. Any infringements are punish-
able and entail a liability for damages.
Liability
Condair Group AG is not liable for any damages incurred as a result of poorly executed installation, improper
operation or the use of components or equipment not approved by Condair Group AG.
Copyright notice
© Condair Group AG, all rights reserved
Subject to technical alterations

3Table of Contents
Table of Contents
1 Introduction 5
1.1 First things rst! 5
1.2 Notes on installation and commissioning instructions 5
2 For your safety 7
3 Product overview 9
3.1 Model overview 9
3.2 Product labelling 9
3.3 System overviews 10
3.3.1 Condair MD MD-EL-H variant system overview 10
3.3.2 Condair MD MD-HW-H variant system overview 11
3.3.3 Condair MD MD-FB-H variant system overview 12
3.3.4 Condair MD MD-WW-H variant system overview 13
3.4 Scope of delivery 14
3.5 Options 15
3.6 Accessories 15
4 Checking delivery/storage and transport 16
4.1 Checking delivery 16
4.2 Storage and transport 16
5 Installation overview 17
5.1 Safety instructions for the installation work 17
5.2 Installation overviews 18
5.2.1 Condair MD MD-EL-H variant installation overview 18
5.2.2 Condair MD MD-HW-H, MD-FB-H and MD-WW-H variants installation overview 19
5.3 Requirements for the installation room 20
5.4 Humidier unit mounting 21
5.4.1 Instructions for positioning the humidier unit 21
5.4.2 Insert the base panel and attach the adapters 24
5.4.3 Attach humidier housing to ceiling or wall 25
5.5 Hydraulic unit mounting 29
5.5.1 Instructions for positioning the hydraulic unit 29
5.5.2 Hydraulic unit mounting 29
5.6 Create hose connections between hydraulic unit and humidier unit 31
5.7 Installation of the fresh water supply and water drain 32
5.7.1 Fresh water supply 32
5.7.1.1 Water drain requirements 32
5.7.1.2 When is a water treatment device required? 33
5.7.1.3 Installation of fresh water supply 34
5.7.2 Water drain 35

4Table of Contents
5.8 Installing the heating water or hot water for MD-HW-H, MD-FB-H and MD-WW-H variants 36
5.8.1 Heating water installation for the MD-HW-H variant 36
5.8.2 Heating water installation for the MD-FB-H variant 38
5.8.3 Hot water installation for the MD-WW-H variant 40
5.9 Positioning and installation of the sensors 42
5.9.1 Positioning sensors 42
5.9.1.1 Installation of the humidity and temperature sensor as well as the max. humidistat 43
5.9.1.2 Mounting the airow monitor 43
5.10 Electrical installation 44
5.10.1 Notes on electrical installation 44
5.10.2 Condair MD wiring diagram for external connections 45
5.10.3 Connection work for external connections 46
5.10.3.1 Connection of humidity and temperature sensor 46
5.10.3.2 Connection of external controller 0-10 V 46
5.10.3.3 Connection of the max. humidistat in the supply air duct 46
5.10.3.4 Connecting the air ow monitor 47
5.10.3.5 Humidier unit leak sensor connection 47
5.10.3.6 Connection to the remote operation and fault signalling PCB (option) 48
5.10.3.7 Connection of oor leak sensor (option) 48
5.10.3.8 Mains connection (mains socket) 49
5.10.4 Cable entry 49
6 Initial commissioning 50
6.1 Notes on initial commissioning 50
6.2 Initial commissioning procedure 50
7 Product specications 68
7.1 Technical data of the hydraulic unit 68
7.2 Technical data of humidier unit 69
7.3 CE Declaration of Conformity 70
8 Appendix 71
8.1 Dimensional drawing of humidier unit 71
8.2 Dimensional drawings of adapters 71
8.3 Dimensional drawing of hydraulic unit 72

5Introduction
1 Introduction
1.1 First things rst!
Thank you for choosing the Condair MD.
The Condair MD has been built using state-of-the-art technology and in accordance with the latest safety
regulations. However, improper use of the Condair MD may put users and/or third parties at risk and/or
may also cause damage to material assets.
Please observe and comply with all information and safety instructions in this documentation and in the
instructions to the components built into the humidier system to ensure safe, proper and cost-efcient
operation of the Condair MD.
Should you have any questions after reading these instructions, please contact your local Condair
partner. We will be happy to assist.
1.2 Notes on installation and commissioning instructions
Delimitations
These installation and commissioning instructions deal with the different variants of Condair
MD. Options and accessories are only described insofar as is necessary for proper operation. Please
see the relevant instructions for additional information on the options and accessories.
The information in these installation and commissioning instructions are restricted to installation and
commissioning of the Condair MD and are aimed at correspondingly trained specialist staff that
has been adequately trained for the corresponding activity.
These installation and commissioning instructions are supplemented by various separate documenta-
tion (quick installation instructions, operating instructions, spare parts list, etc.), which are also included
in the scope of delivery. Where necessary, these installation and commissioning instructions may refer
to these publications.

6Introduction
Symbols used in this manual
CAUTION!
The signal word "CAUTION" together with the hazard symbol in a circle indicates information provided
in this documentation which, if ignored, could lead to damage and/or the failure of the device or
other equipment.
WARNING!
The signal word "WARNING", together with the general hazard symbol, indicates safety and hazard
information given in this documentation which, if ignored, could lead to injury to people.
DANGER!
The signal word "DANGER", together with the general hazard symbol, indicates safety and hazard
information given in this documentation which, if ignored, could lead to serious injury or even death
to people.
Storage
Please keep these installation and commissioning instructions in a safe place where they can be ac-
cessed at all times. If the product changes owner, the installation and commissioning instructions must
be handed over to the new operator.
If these installation and commissioning instructions are lost, please contact your Condair partner.
Language versions
These installation and commissioning instructions are available in various languages. For more informa-
tion, please contact your Condair partner.

7For your safety
2 For your safety
General information
Any persons assigned to installing the Condair MD must have read and understood the installation and
commissioning instructions as well as the operating instructions of the Condair MD before starting work
on the unit.
An understanding of the content of these installation and commissioning instructions and the operating
instructions is a basic prerequisite for protecting personnel from danger, avoiding improper installation
and operating the device safely and properly.
All pictograms, signs and labelling applied to the Condair MD must be observed and kept in a clearly
legible condition.
Personnel qualications
All actions described in these installation and commissioning instructions may be performed by trained
and adequately qualied specialist personnel authorised by the operator only.
Furthermore, for safety and warranty reasons, interventions may only be undertaken by specialist per-
sonnel authorised by Condair.
It is assumed that all persons entrusted to work on the Condair MD are familiar with and abide by the
regulations on occupational health and safety and accident prevention.
Intended use
The Condair MD is exclusively intended for duct air humidication together with Energy Recover
Ventilation (ERV) within the specied operating conditions. Any other use without the written
permission of Condair is deemed to be improper use and can render the Condair MD hazardous. Any
unintended use shall render guarantee claims void.
Intended use also includes the following: observing all information contained in this documentation
(particularly all safety and hazard warnings).

8For your safety
Danger that may arise from the device:
DANGER!
Risk of electrocution
The hydraulic unit of the Condair MD operates using mains voltage. If the hydraulic unit is open,
users may come into contact with live parts. Touching live parts may cause severe injury or death.
For this reason: Do not connect the Condair MD hydraulic unit to the power supply until all installation
work has been completed, all installations have been checked for correct operation and the hydraulic
unit has been correctly closed and locked again.
Warning!
System contamination hazard
If the Condair MD is switched off following initial commissioning, there is a risk of the fresh
water supply pipe and the internal water system becoming contaminated, as the water system
is then no longer being ushed regularly.
For this reason: Once the Condair MD has been commissioned for the rst time, it must no longer be
switched off and must be operated either in "humidier mode" or in "standby mode". This will ensure
that the water system is purged at regular intervals, and any contamination is counteracted.
Avoidance of hazardous operating conditions
All persons entrusted to work on the Condair MD are obliged to report to the appropriate ofce or person
representing the operator on any changes to the system that affect safety, and secure the Condair MD
against being switched on accidentally.
Unauthorised modications to the device
No additions or modications must be made to the Condair MD without the written permission of Condair.
When replacing any defective components on the unit, use only genuine accessories and spare parts
provided by your Condair partner.
Exclusively use consumables provided by Condair that have been listed in the spare parts list to service
the Condair MD.

9Product overview
Condair Group AG, Gwattstrasse 17, 8808 Pfäfkon SZ, Switzerland
Type: Condair MD Serial no.: XXXXXXX 11.19
Voltage: 230V/1~/50-60Hz El. output: 800.0 VA 3.4 A
Humidier output: 2 kg/h
Water pressure: 1.5 to 5 bar, <30°C Code: MD-EL-H
Engineered in Switzerland, made in Germany
3 Product overview
3.1 Model overview
The Condair MD is available in four different variants with a humidication output of 2 kg/h for installation
in horizontal ventilation ducts (H).
– EL: heating up the humidication water with integrated, electrical heating.
– HW: heating up the humidication water using the integrated heat exchanger connected to a hot
water system of a heating system.
– FB: heating up the humidication water using the integrated heat exchanger connected to a oor/
wall-based heating or a convection circuit.
– WW: Heating up humidier water using the integrated heat exchanger connected to the hot water
system (heated drinking water or heated waste water).
Variant Humidication output 1) Heating type
MD-EL-H
2 kg/h 1)
Electrical heating element integrated into the water
tank of the hydraulic unit
MD-HW-H Heating water circuit (35°C to 60°C) without recir-
culation pump
MD-FB-H Floor/wall-based heating circuit or convection circuit
(29°C to 60°C) with recirculation pump
MD-WW-H Hot water circuit (45°C to 60°C) without recircula-
tion pump
1) The stated humidication output is the maximum value, measured at an air throughput rate of 180
m3/h. The effective humidication output depends on the heating source output, the condition of the
supply air and the adjusted humidity setpoint. The output has been veried by Fraunhofer Institute
for Solar Energy Systems (ISE), Freiburg, Germany.
The functionality of all basic models can be enhanced using various options. Different accessories and
consumables are also available.
3.2 Product labelling
The type plate features the product labelling:
Type designation Serial number (7 digits)
Production date,
month/year
Connection voltage
Maximum humidication output
Permissible water connection pressure
Electrical output
Field with test marks
Variant code

10 Product overview
3.3 System overviews
3.3.1 Condair MD MD-EL-H variant system overview
Fig. 1: Condair MD MD-EL-H variant system overview
3
4 5
8
10
6 7
9
13
12
11
2
1
Supply air
Extract air
On-site
installation
1Shut-off valve, fresh water supply (by others)
2Water treatment (optional)
3Drain funnel with siphon (by others)
4 Fresh water supply connection G 3/4" (ET)
5 Drain connection ø40 mm
6Humidier unit supply
7Humidier unit return
8 Hydraulic unit
9Air ow monitor (supply air)
10 Max. humidistat (supply air)
11 Humidier unit
12 Humidity and temperature sensor (Extract air)
13 Energy recovery ventilation (ERV), by others
RO HS reverse osmosis
system or decarboniser
Water treatment (optional)

11Product overview
3.3.2 Condair MD MD-HW-H variant system overview
Fig. 2: Condair MD MD-HW-H variant system overview
M
17
3
4 5 14 15
8
16
1
2
10
6 7
9
13
12
11
Existing heating system (e.g.
buffer storage) with a supply
temperature of 35°C to at max.
60°C
On-site
installation
Supply air
Extract air
1Shut-off valve, fresh water supply (by others)
2Water treatment (optional)
3Drain funnel with siphon (by others)
4 Fresh water supply connection G 3/4" (ET)
5 Drain connection ø40 mm
6Humidier unit supply
7Humidier unit return
8 Hydraulic unit
9Air ow monitor (supply air)
10 Max. humidistat (supply air)
11 Humidier unit
12 Humidity and temperature sensor (Extract air)
13 Energy recovery ventilation (ERV), by others
14 Heating water supply connection G 1/2" (IT)
15 Heating water return connection G 1/2" (IT)
16 Shut-off valve, return (by others)
17 Shut-off/check valve, supply (by others)
RO HS reverse osmosis
system or decarboniser
Water treatment (optional)

12 Product overview
3.3.3 Condair MD MD-FB-H variant system overview
Fig. 3: MD-FB-H ERV air humidier variant system overview
17
3
4 5 14 15
16
M
8
10
6 7
9
13
12
11
2
1
Existing underoor/wall heating
or convector circuit with a sup-
ply temperature of 29°C to at
max. 60°C
Supply air
Extract air
1Shut-off valve, fresh water supply (by others)
2Water treatment (optional)
3Drain funnel with siphon (by others)
4 Fresh water supply connection G 3/4" (ET)
5 Drain connection ø40 mm
6Humidier unit supply
7Humidier unit return
8 Hydraulic unit
9Air ow monitor (supply air)
10 Max. humidistat (supply air)
11 Humidier unit
12 Humidity and temperature sensor (Extract air)
13 Energy recovery ventilation (ERV), by others
14 Heating water supply connection G 1/2" (IT)
15 Heating water return connection G 1/2" (IT)
16 Shut-off valve, return (by others)
17 Shut-off/check valve, supply (by others)
On-site
installation
RO HS reverse osmosis
system or decarboniser
Water treatment (optional)

13Product overview
3.3.4 Condair MD MD-WW-H variant system overview
Fig. 4: Condair MD MD-WW-H variant system overview
17
3
4 5 14 15
16
M
8
10
6 7
9
13
12
11
1
2
Existing hot water tank with a
supply temperature of 45°C to
at max. 60°C
Supply air
Extract air
1Shut-off valve, fresh water supply (by others)
2Water treatment (optional)
3Drain funnel with siphon (by others)
4 Fresh water supply connection G 3/4" (ET)
5 Drain connection ø40 mm
6Humidier unit supply
7Humidier unit return
8 Hydraulic unit
9Air ow monitor (supply air)
10 Max. humidistat (supply air)
11 Humidier unit
12 Humidity and temperature sensor (Extract air)
13 Energy recovery ventilation (ERV), by others
14 Heating water supply connection G 1/2" (IT)
15 Heating water return connection G 1/2" (IT)
16 Shut-off valve, return (by others)
17 Shut-off/check valve, supply (by others)
On-site
installation
RO HS reverse osmosis
system or decarboniser
Water treatment (optional)

14 Product overview
3.4 Scope of delivery
Condair MD is supplied with:
Material Condair scope of delivery
EL-H FB-H HW-H WW-H
Humidier unit
Humidier housing 2 kg/h x x x x
Humidier insert 2 kg/h x x x x
Adapters ventilation duct incl. seals x x x x
Screws and wall plugs for wall installation x x x x
Hydraulic unit
Hydraulic unit 2 kg/h with power cable and ø40/ø32 mm re-
duction screw connection for water drain connection xxxx
Control Components
Humidity/temperature sensor for duct installation incl. connect-
ing cable
xxxx
Max. humidistat for duct installation incl. connecting cable x x x x
Air ow monitor for duct installation incl. connecting cable x x x x
Connection cable for sensors x x x x
Connecting cable leakage sensor humidier unit x x x x
Installation set
"Large" installation set (all necessary hoses, insulation hoses,
hose connectors, etc.) for establishing the hydraulic connec-
tions between the hydraulic unit and humidier unit
xxxx

15Product overview
3.5 Options
The following options are available for Condair MD:
Option Description
Remote operation and fault signalling PCB (RFI)
Remote operation and fault signalling PCB for
installation in the hydraulic unit. The remote opera-
tion and fault signalling PCB has four potential-free
relay contacts for the remote display of the following
operating states: "Device switched on", "Device
humidied", "Service due" and "Error".
Leakage monitoring room Leakage monitoring for rooms without oor drain
consisting of oor sensor and connection cable.
Heating element (for MD-FB-H variant only)
Heating element with cable for installation in the
water tank of the hydraulic unit for the MD-FB-H
unit variant at supply temperatures below 29°C.
Note: The minimum supply temperature when using
the additional heating element must be at minimum
27°C. If you have any questions, please contact
your Condair partner.
Humidier unit lter Air lter for installation in the humidier unit.
Condair RO-HS reverse osmosis system External reverse osmosis system for supplying
reverse osmosis water to the Condair MD.
Decarboniser
Decarboniser (resin lter) for removing the miner-
als dissolved in the water for supplying water with
reduced mineral content to the Condair MD.
3.6 Accessories
The following accessories are available for the Condair MD:
Accessories Description
Adapters ventilation duct
Adapters for humidier unit incl. seal. The adapters
are available with different connection diameters:
DN125, DN160 or DN180.
Service kit
Service kit for descaling/disinfection of Condair
MD. The service kit includes: A dosing bottle with
quick coupling, a funnel, a container with descaler
granules and a bottle with 1 l disinfectant.

16 Checking delivery/storage and transport
4 Checking delivery/storage and transport
4.1 Checking delivery
Following receipt of the delivery:
– Check the packaging for damage.
Any damage must be immediately reported to the transport company.
– Use the delivery note to check whether all components have been delivered.
Report missing components to your Condair partner within 48 hours. Condair Group AG assumes
no responsibility for missing material beyond this period.
– Remove the components from their packaging and check them for any damage. Notify the transport
company immediately should you nd any damaged parts/components.
WARNING!
For hygiene reasons, the humidier insert packaging may only be opened before the humidier
insert is installed.
– Check, according to the device data on the type plate, whether the supplied components are suitable
for installation at the installation location.
4.2 Storage and transport
Storage
The Condair MD components must be stored in the original packaging in a place secured against drip-
ping water under the following conditions until installation:
– Room temperature: 5 to 40°C
– Room humidity: 10 to 75% RH (non-condensing)
Transport
Where possible, always transport the device and components in the original packaging and use a suit-
able means of transport or suitable lifting device.
WARNING!
The customer is responsible for ensuring that staff are trained on handling heavy goods and are aware
of and adhere to the relevant provisions on occupational safety and accident prevention.
Packaging
Keep the original packaging for later use.
If the packaging should be disposed of, follow local environmental protection guidelines. Recycle the
packaging material wherever possible.

17Installation overview
5 Installation overview
5.1 Safety instructions for the installation work
Personnel qualications
All installation work may be carried out by qualied, trained personnel only. It is the responsibility of the
operator to check the qualications.
General information
All information in these installation and commissioning instructions for installation of the device as well
as for water and electrical installation must be observed and complied with.
All local regulations for the installation of the water and electrical systems must be observed and adhered to.
Safety
For some of the installation work, the unit covers must be removed. It is therefore essential to note the
following:
DANGER!
Risk of electrocution!
The hydraulic unit of the Condair MD operates using mains voltage. If the hydraulic unit is open,
users may come into contact with live parts. Touching live parts may cause severe injury or death.
For this reason: Do not connect the hydraulic unit to the mains until all installation work has been
completed, all installations have been checked for correct operation and the hydraulic unit has been
correctly closed and locked again.
CAUTION!
Electronic components on the inside of the Condair MD hydraulic unit are very sensitive to
electrostatic discharge.
For this reason: To protect the electronic components, measures must be taken against damage
due to electrostatic discharge (ESD protection) when the hydraulic unit is open for installation work.

18 Installation overview
5.2 Installation overviews
5.2.1 Condair MD MD-EL-H variant installation overview
Fig. 5: Condair MD MD-EL-H variant installation overview
Max. humidistat
Humidity and temperature sensor
Air ow monitor
Service uid connection JG ø10 mm
Humidier unit return connection JG ø10 mm
Humidier unit supply connection JG ø10 mm
Drain connection ø40 mm
Drain funnel with
siphon
Supply connection G 3/4" (ET)
Drain pipe ø40 mm (min. slope 15%)
by others
by others
Mains socket
(230V/50Hz,
10 A slow-blow, FI 30 mA)
Minimum distance for service
liquid lling
min. 300 mm
300 mm
288 mm
610 mm
425 mm
min. 200 mm min. 300 mm
Free access: at min. 800 mm
Free access: at min. 800 mm
min. 200 mmmin. 350 mm
Extract air
Supply air
Shut-off valve
1.5 to 5.0 bar
8 to 30 °C
Max. hose length 3 m
(hoses with a continuous slope of at
min. 15% routed to the hydraulic unit)
Max. cable length 5 m
Water treatment (optional)
Condair RO-HS
Reverse Osmosis System
Decarboniser
50% scaled
50% scaled

19Installation overview
5.2.2 Condair MD MD-HW-H, MD-FB-H and MD-WW-H variants installation overview
Fig. 6: Condair MD MD-HW-H, MD-FB-H and MD-WW-H variants installation overview
Max. humidistat
Humidity and temperature sensor
Air ow monitor
Service uid connection JG ø10 mm
Humidier unit return connection JG ø10 mm
Humidier unit supply connection JG ø10 mm
Drain connection ø40 mm
Drain funnel with
siphon
Supply connection G 3/4" (ET)
Drain pipe ø40 mm (min. slope 15%)
by others
by others
Mains socket
(230V/50Hz,
10 A slow-blow, FI 30 mA)
Minimum distance for service
liquid lling
min. 300 mm
300 mm
288 mm
610 mm
425 mm
min. 200 mm min. 300 mm
Free access: at min. 800 mm
Free access: at min. 800 mm
min. 200 mm
min. 350 mm
Extract air
Supply air
Shut-off valve
1.5 to 5.0 bar
8 to 30 °C
Max. hose length 3 m
(hoses with a continuous slope of at
min. 15% routed to the hydraulic unit)
Max. cable length 5 m
Heating or hot water installation (by others)
For details see Section 5.8
Heating or hot water return
Heating or hot water supply
Water treatment (optional)
Condair RO-HS
Reverse Osmosis System
Decarboniser
50% scaled
50% scaled

20 Installation overview
5.3 Requirements for the installation room
The humidier unit and the hydraulic unit have been designed for installation in protected indoor spaces.
Please note the following regarding the requirements for the installation site:
– The humidier unit must be installed together with the hydraulic unit in a utility room that has been
protected against unauthorised access.
– The installation room must have a oor drain connected to the on-site wastewater pipe.
Note: If there is no oor drain, the installation of the optional "leakage monitoring" is recommended.
– The room temperature must be between +7°C and +30°C all year round and the humidity between
15% rH and 50% rH (non-condensing) and the room must be ventilated.
– There must be a sufciently large, free ceiling or wall surface at the installation location for mounting
the humidier unit and a sufciently large, free wall surface for mounting the hydraulic unit.