Condair SH2 User manual

INSTALLATION AND OPERATING INSTRUCTIONS
Adiabatic Humidifiers
2529324 EN 1112
Condair SH2

3
Contents
1 Introduction 4
1.1 To the very beginning 4
1.2 Notes on the installation and operating instructions 4
2 For your safety 6
3 Product overview 8
3.1 Model overview 8
3.2 Product designation 8
3.3 Model “flow” 10
3.3.1 Construction model “flow” 10
3.3.2 System overview model “flow” 11
3.4 Model “flow C” 12
3.4.1 Construction model “flow C” 12
3.4.2 System overview model “flow C” 13
3.5 Model “flow SC” 14
3.5.1 Construction Model “flow SC” 14
3.5.2 System overview model “flow SC” 15
3.6 Model “REflow” 16
3.6.1 Construction model “REflow” 16
3.6.2 System overview model “REflow” 17
3.7 Model “REflow C” 18
3.7.1 Construction model “REflow C” 18
3.7.2 System overview model “REflow C” 19
3.8 Model “REflow SC” 20
3.8.1 Construction model “REflow SC” 20
3.8.2 System overview model “REflow SC” 21
3.9 Standard delivery 22
3.10 Storing/Transport/Packaging 22
4 Installation 23
4.1 Important notes on the mounting and
installation work 23
4.2 Unit mounting 23
4.2.1 Note on locating the unit 23
4.2.2 Mounting process 25
4.3 Water installation 38
4.3.1 Overviews water installation 38
4.3.2 Notes on water installation 41
4.4 Electric installation 42
4.4.1 Leading the electric cables out of the duct 42
4.4.2 Mounting the control unit SH2 43
4.4.3 Wiring diagram Condair SH2 flow C 44
4.4.4 Wiring diagram Condair SH2 flow SC 45
4.4.5 Wiring diagram Condair SH2 REflow C 46
4.4.6 Wiring diagram Condair SH2 REflow SC 47
5 Operation 48
5.1 Putting into operation 48
5.2 Adjust the volume controlling valves 48
5.3 Notes on operation 49
5.4 Taking out of operation 49
6 Maintenance 50
6.1 Important notes on maintenance 50
6.2 Maintenance intervals 51
6.3 Maintenance work 51
6.4 Dismantling and installation works 53
6.4.1 Dismantle and install the mist eliminator
and humidification boxes 53
6.4.2 Dismantle and install the UV lamp (option) 54
6.5 Resetting the maintenance indication 54
7 Malfunctions 55
7.1 Malfunction list 55
7.2 Notes on fault elimination 56
8 Taking out of service/Disposal 57
8.1 Taking out of service 57
8.2 Disposal/Recycling 57
9 Product specifications 58
9.1 Technical data 58
9.2 Unit dimensions 59

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Limitation
The subject of these installation and operating instructions is the adiabatic air humidifier
Condair SH2. The various accessories are only described insofar as this is necessary for proper
operation of the equipment. Further information on accessories can be obtained in the respective
instructions.
These installation and operating instructions are restricted to the installation, commissioning, op-
eration, servicing, and trouble-shooting of the adiabatic air humidifier Condair SH2 and is meant
for well trained personnel being sufficiently qualified for their respective work.
The installation and operating instructions are supplemented by various separate items of documenta-
tion (spare parts list, manuals for accessories, etc.). Where necessary, appropriate cross-references
are made to these publications in the installation and operating instructions.
1 Introduction
We thank you for having purchased the Adiabatic Air Humidifier Condair SH2.
The adiabatic air humidifier Condair SH2 incorporates the latest technical advances and meets all
recognized safety standards. Nevertheless, improper use of the adiabatic air humidifier Condair SH2
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 adiabatic air humidifier Condair SH2, please
observe and comply with all information and safety instructions contained in the present installation
and operating instructions as well as in the separate documentations of the components installed
in the humidification system.
If you have questions, which are not or insufficiently answered in this documentation, please contact
your Condair supplier. They will be glad to assist you.
1.2 Notes on the installation and operating instructions
1.1 To the very beginning

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Symbols used in this manual
CAUTION!
The catchword “CAUTION” designates notes in this installation and operating instructions 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 and operating instructions that, if neglected, may cause to
injury to persons.
DANGER!
The catchword “DANGER” used in conjunction with the general caution symbol designates safety
and danger notes in this installation and operating instructions that, if neglected, may lead to severe
injury or even death of persons.
Safekeeping
Please safeguard these installation and operating instructions in a safe place, where they 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 supplier.
Language versions
These installation and operating instructions are available in various languages. Please contact your
Condair supplier for information.
Copyright protection
The present installation and operating instructions is protected under the Copyright Act. Passing-on
and reproduction of the manual (or part thereof) as well as exploitation and communication of the
contents are prohibited without written permission by the manufacturer. Violation of copyright terms
is subject to legal prosecution and arises liability for indemnification.
The manufacturer reserves the right to fully exploit commercial patent rights.

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2 For your safety
General
Every person working with the Condair SH2 must have read and understood the installation and
operating instructions before carrying out any work.
Knowing and understanding the contents of the installation and operating instructions 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.
Qualification of personnel
All work (installation, operating, servicing , etc.) described in these installation and operating instruc-
tions may only be carried out by specialist who are well trained and adequately qualified and
are authorized by the customer.
For safety and warranty reasons any action beyond the scope of this manual must be carried out
only by qualified personnel authorised by the manufacturer.
It is assumed that all persons working with the Condair SH2 are familiar and comply with the ap-
propriate regulations on work safety and the prevention of accidents.
Intended use
The adiabatic air humidifier/cooler Condair SH2 are intended exclusively for air humidification/air
cooling in air ducts or monoblocs within the specified operating conditions (see chapter 9 “Prod-
uct specifications”. Any other type of application, without the written consent of your Condair sup-
plier, is considered as not conforming with the intended purpose and may lead to the Condair SH2
becoming dangerous.
Operation of the equipment in the intended manner requires that all the information in these
instructions are observed (in particular the safety instructions).

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Danger that may arise from the unit
DANGER! Danger of electric shock!
Some components of the Condair SH2 are mains powered. One may get in touch with live
parts when the control unit or the distribution boxes are open.Touching live parts may cause
severe injury or danger to life.
Prevention: Before carrying out any work set the Condair SH2 out of operation as described in
chapter 5.4 (switch off the unit, disconnect it from the mains and stop the water supply) and secure
the unit against inadvertent power-up.
WARNING!
The UV lamp used in the water treatment unit (option) emits harmful UV-C rays. If the UV
lamp is operated outside the housing, the emitted UV-C rays may damage the eyes and the
skin lasting.
Prevention: Never operate the UV lamp outside the housing.
WARNING!
Badly maintained humidifiers can endanger the health. If the unit is insufficient maintained
ill-making germs may grow in the water tub and the humidification boxes (and the mist
eliminator) of the Condair SH2 and may can affect the air passing through the humidifier.
Prevention: The Condair SH2 must be cleaned in the prescribed intervals according to the infor-
mation given in chapter 6 “Maintenance". The cleaning works must be carried out correctly and
the humidification boxes and the mist eliminator boxes must be replaced after their prescribed
lifetime has elapsed.
.
Behaviour in case of danger
If it is suspected that safe operation is no longer possible, then the Condair SH2 should immedi-
ately be shut down and secured against accidental power-up according to chapter 5.4. This can
be the case under the following circumstances:
– if the Condair SH2 is damaged
– if the Condair SH2 is no longer operating correctly
– if connections and/or piping are not sealed
– if electrical cables are defective
All persons working with the Condair SH2 must report any alterations to the unit that may affect
safety to the owner without delay.
Prohibited modifications to the unit
No modifications must be undertaken on the Condair SH2 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 supplier.

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Condair AG, CH-8808 Pfäffikon
Made in Switzerland
SH2 REflow SC
Befeuchtungsleistung = 150.0 kg/h
Fliessdruck 2...10 bar max. 45°C
REflow SC 300 1800 2000 1 150
230V 1~ / 50Hz 393 VA
XXXXXXX 03.07
3 Product overview
3.1 Model overview
The Condair SH2 is available in the two base versions “flow” with direct water system and “REflow”
with circulating water system. The following base models are available:
– Condair SH2 flow
– Condair SH2 flow C (with control unit RC and On/Off control)
– Condair SH2 flow SC (with control unit SH2 and step control)
– Condair SH2 REflow
– Condair SH2 REflow C (with control unit SH2 and On/Off control)
– Condair SH2 REflow SC (with control unit SH2 and step control)
All base models can be extended in their functions by different options. In addition there are different
accessories available for all models.
The product designation and the most important unit data are found on the rating plate:
Type designation Serial number Month/Year
Supply voltage
Humidification capacity
Admissible water supply pressure
Certificates
3.2 Product designation
Type key
Power consumption

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Example:
Condair SH2 REflow SC 300 1800 2000 0 150
Model:
flow
flow C
flow SC
REflow
REflow C
REflow SC
Depth of humidification box:
200 mm
300 mm
Order code width W
Order code height H
Mist eliminator:
No mist eliminator (can be retrofitted): 0
Mist eliminator 100 mm: 1
Mist eliminator 200 mm: 2
No mist eliminator (can not be retrofitted): 3
Humidification capacity in kg/h according layout
Type key

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2
4
5
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7
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3.3 Model “flow”
3.3.1 Construction model “flow”
1 Water connection on unit R 3/4" (outside thread)
2 Volume controlling valves (adjustable manually)
3 Water tub
4 Open drain (ø 40/34 mm)
5 Water hoses
6 Trickling hoods with distribution pipes
7 Humidification boxes
8 Mist eliminator (for air speed above humidification boxes >3.8 m/s)

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3.3.2 System overview model “flow”
Functional description
In case of a humidification/cooling request the supply valve (building side) opens and the water flows
via the pressure reducing valve (accessory), the water filter (accessory) and the manually adjustable
volume controlling valves to the distribution pipes above the humidification boxes.
The distribution pipes evenly supply the water to the entire surface of the humidification boxes where
it flows down and humidifies the air flowing through the humidification boxes.The excess water not
used for humidification flows to the water tub and then directly to the drain.
Shut-off valve
Pressure reducing valve
Water filter
Volume controlling valves
(adjustable manually)
Water tub
Open drain
Siphon (building side)
Humidification boxes
Water supply
2...10 bar
Control: via humidistat that actuates the supply valve depending on the humidification requests
Water connection unit (accessory)
Drain funnel (building side)
Supply valve (building side)

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3
1
2
4
5
6
7
8
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3.4 Model “flow C”
3.4.1 Construction model “flow C”
1 Water connection on unit R 3/4" (outside thread)
2 Volume controlling valves (adjustable manually)
3 Water tub
4 Open drain (ø 40/34 mm)
5 Water hoses
6 Trickling hoods with distribution pipes
7 Humidification boxes
8 Mist eliminator (for air speed above humidification boxes >3.8 m/s)
9 Control unit RC

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L1 N S S
NL1PE
%rH
3.4.2 System overview model “flow C”
Functional description
The “flow C” model provides On/Off control by means of the RC control unit and an external On/Off
humidistat. In case of a humidification/cooling request the supply valve opens and the water flows
via the pressure reducing valve (accessory), the water filter (accessory) and the manually adjustable
volume controlling valves to the distribution pipes above the humidification boxes.
The distribution pipes evenly supply the water to the entire surface of the humidification boxes where
it flows down and humidifies the air flowing through the humidification boxes.The excess water not
used for humidification flows to the water tub and then directly to the drain.
Shut-off valve
Pressure reducing valve
Water filter
Volume controlling valves
(adjustable manually)
Water tub
Open drain
Siphon (building side)
Humidification boxes
Water supply
2...10 bar
Control unit RC
Water connection unit (accessory)
Input:
Potential free contact 230 V
Output:
Supply valve
Humidistat 230V/2A
Drain funnel (building side)
Supply valve

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4
1
2
5
6
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3
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3.5 Model “flow SC”
3.5.1 Construction Model “flow SC”
1 Water connection on unit R 3/4" (outside thread)
2 Volume controlling valves (adjustable manually)
3 Step valves (1 to 3)
4 Water tub
5 Open drain (ø 40/34 mm)
6 Water hoses
7 Trickling hoods with distribution pipes
8 Humidification boxes
9 Mist eliminator (for air speed above humidification boxes >3.8 m/s)
10 UV water treatment (option)
11 Control unit SH2

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3.5.2 System overview model “flow SC”
Shut-off valve
Functional description
The “flow SC” model provides multistep control by means of the SH2 control unit and the step
valves (1, 2 or 3 step valves depending on the humidifier capacity). The SH2 control unit (for wall
mounting) processes analog sensor/control signals and uses them to control the step valves. This
allows multistep control (1 to 3 steps depending on the humidifier capacity) which improves control
accuracy compared to the “flow” model.
In case of a humidification/cooling request one, two or all three step valves open (depending on the
request). The water flows via the manually adjustable volume controlling valves to the distribution
pipes above the humidification boxes.
The distribution pipes evenly supply the water to the entire surface of the humidification boxes where
it flows down and humidifies the air flowing through the humidification boxes.The excess water not
used for humidification flows to the water tub and then directly to the drain.
If the “flow SC” model is equipped with the optional UV water treatment (installed in the water
supply) the water is continuously degerminated during the humidification process.
Pressure reducing valve
Water filter
UV water treatment
(option)
Step valves 1..3
Minimum
pressure switch
Volume controlling valves
(adjustable manually)
Water tub
Open drain
Siphon (building side)
Humidification boxes
Inputs Minimum pressure
Outputs
Control unit SH2
Display
Error
Humidification
Control/sensor signal analog
0...5 VDC, 1...5 VDC, 0...10 VDC
2...10 VDC, 0..16 VDC, 3.2...16 VDC,
0..20 mA, 4..20 mA
Step valves 1...3
UV water treatment
Remote indication (On, Error, Maintenance and Humidification)
Water supply
2...10 bar
Water connection unit
(standard delivery **)** installation mandatory
Drain funnel (building side)
Rinsing valve

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3.6 Model “REflow”
3.6.1 Construction model “REflow”
1 Water connection on unit R 3/4" (outside thread)
2 Level-controlled supply valve
3 Circulation pump
4 Volume controlling valves (adjustable manually)
5 Overflow
6 Drain (ø 40/34 mm)
7 Shut-off valve
8 Water tub
9 Drain line
10 Water hoses
11 Trickling hoods with distribution pipes
12 Humidification boxes
13 Mist eliminator (for air speed above humidification boxes >3.8 m/s)
CAUTION!
The circulation pump must be protected against dry operation by taking appropriate measures (by
the customer).
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3
1
10
11
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13
5
7
2
4
9
6

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3.6.2 System overview model “REflow”
Functional description
The water tub is filled up to a preset upper level via the level-controlled supply valve. When the water
level in the tub drops below a certain limit, the level-controlled supply valve opens until the upper
limit is reached again.
In case of a humidification/cooling request the circulation pump starts and supplies the water via
the manually adjustable volume controlling valves to the distribution pipes above the humidification
boxes.
The distribution pipes evenly supply the water to the entire surface of the humidification boxes where
it flows down and humidifies the air flowing through the humidification boxes.The excess water not
used for humidification flows to the water tub and is fed back to the circulation pump.
To prevent accumulation of mineral residues in the water tub, a limited amount of water is continu-
ously drained via a manually adjustable volume controlling valve and replaced with fresh water.
Water supply
2...10 bar
Shut-off valve
Pressure reducing valve
Water filter
Level-controlled
supply valve
Volume controlling valves
(adjustable manually)
Circulation pump
Overflow
Water tub
Water level
Shut-off valve
Siphon (building side)
Humidification boxes
Control:
Via humidistat switching the circulation pump on or off depending on humidification
request
Draining:
Draining is done continuously via the volume controlling valve (to the very right).
Water connection unit (accessory)
Drain funnel (building side)

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3
1
6
9
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12
2
4
7
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3.7 Model “REflow C”
3.7.1 Construction model “REflow C”
1 Water connection on unit R 3/4" (outside thread)
2 Level-controlled supply valve
3 Circulation pump
4 Overflow
5 Drain (ø 40/34 mm)
6 Drain valve
7 Volume controlling valves (adjustable manually)
8 Water tub
9 Water hoses
10 Trickling hoods with distribution pipes
11 Humidification boxes
12 Mist eliminator (for air speed above humidification boxes >3.8 m/s)
13 Control unit SH2
5

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3.7.2 System overview model “REflow C”
Water supply
2...10 bar
Stop valve
Pressure reducing valve
Water filter
Level-controlled
supply valve
Level switch
Functional description
The water tub is filled up to a preset upper level via the level-controlled supply valve. When the water
level in the tub drops below a certain limit, the level-controlled supply valve opens until the upper
limit is reached again.
The “REflow C” model provides On/Off control by means of the SH2 control unit and an external
On/Off humidistat. In case of a humidification/cooling request one, two or all three step valves open
(depending on the request). The water flows via the manually adjustable volume controlling valves
to the distribution pipes above the humidification boxes.
The distribution pipes evenly supply the water to the entire surface of the humidification boxes where
it flows down and humidifies the air flowing through the humidification boxes.The excess water not
used for humidification flows to the water tub.
To prevent accumulation of mineral residues and the formation of germs in the water tub, the tub
is completely drained periodically (interval or time controlled). Additionally further hygiene functions
can be activated: Operation-dependent draining of the water tub (conductivity or fill cycle controlled)
as well as cleaning and drying of the humidification boxes.
Volume controlling valves
(adjustable manually)
Circulation pump
Water tub
Operating level = pump immediately on / delayed off
Overflow
Drain valve
Siphon (building side)
Humidification boxes
Inputs
Control unit SH2
Display
Error
Humidification
Outputs
Operating level
Signal On/Off humidistat
Supply valve
Drain valve
Circulation pump
Remote indication (On, Error, Maintenance and Humidification)
Water connection unit (accessory)
Drain funnel (building side)
Conductivity monitoring
(option)
Conductivity (option)

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3
1
10
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13
2
4
8
7
14
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3.8 Model “REflow SC”
3.8.1 Construction model “REflow SC”
1 Water connection on unit R 3/4" (outside thread)
2 Level-controlled supply valve
3 Circulation pump
4 Overflow
5 Drain (ø 40/34 mm)
6 Drain valve
7 Step valves (1 to 3)
8 Volume controlling valves (adjustable manually)
9 Water tub
10 Water hoses
11 Trickling hoods with distribution pipes
12 Humidification boxes
13 Mist eliminator (for air speed above humidification boxes >3.8 m/s)
14 UV water treatment (option)
15 Control unit SH2
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5