Condair RH Series User manual

Humidication and Evaporative Cooling
2600951-B EN 2104
INSTALLATION AND
OPERATION MANUAL
Steam humidier
Condair RH

Thank you for choosing Condair
Installation date (MM/DD/YYYY):
Commissioning date (MM/DD/YYYY):
Site:
Model:
Serial number:
Proprietary Notice
This document and the information disclosed herein are proprietary data of Condair Group AG. Neither this docu-
ment, nor the information contained herein shall be reproduced, used, or disclosed to others without the written
authorisation of Condair Group AG, except to the extent required for installation or service of recipient's equipment.
Liability Notice
Condair Group AG 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 authorised by Condair Group AG.
Copyright Notice
© Condair Group AG, All rights reserved.
Technical modications reserved

3Contents
Contents
1 Introduction 5
1.1 To the very beginning 5
1.2 Notes on the installation and operation manual 5
2 For your safety 7
3 Checking the delivery / storage and transport 10
3.1 Checking the delivery 10
3.2 Storage and Transportation 10
4 Product overview 11
4.1 Model overview 11
4.2 Product designation 11
4.3 Construction of the Condair RH steam humidier 12
4.4 Functional description 13
4.5 System overviews 14
4.5.1 System overview Condair RH-VS 14
4.5.2 System overview Condair RH-DS 15
4.5.3 System overview Condair RH-DV 16
4.6 Accessories 17
5 Installation 18
5.1 Safety instructions for installation work 18
5.2 Placement and installation of the steam humidier 19
5.2.1 Placement of the steam humidier 19
5.2.2 Mounting the steam humidier 22
5.3 Water installation steam humidier 26
5.3.1 Overview water installation 26
5.3.2 Notes on water installation 27
5.4 Installing the steam and condensate lines 28
5.5 Electrical installation 28
5.5.1 Notes on electrical installation 28
5.5.2 Wiring diagram Condair RH 30
5.5.3 Installation work external connections 31
5.5.3.1 Connection of the maximum humidistat "B1" and the optional air ow monitor "B2"
to the external safety loop 31
5.5.3.2 Connection of the humidity sensor (A1) 32
5.5.3.3 Connecting the voltage supply to the Condair RH 3.6 33
5.6 Checking the installation of the Condair RH steam humidier 34

4Contents
6 Operation 36
6.1 Initial commissioning 36
6.2 Display and operating elements 36
6.2.1 Overview display and operating elements 36
6.2.2 Functions of the display and operating elements 37
6.3 Commissioning after an interruption of operation 38
6.4 Notes on operation 39
6.4.1 Inspections during operation 39
6.4.2 Perform cylinder draining 39
6.5 Decommissioning 40
6.6 Operation of the Condair RH via the HumiLife app 41
6.6.1 Download the HumiLife app 41
6.6.2 Connect the HumiLife app to the Condair RH 41
6.6.3 Operation of the HumiLife app 45
7 Maintenance 47
7.1 Important notes on maintenance 47
7.2 Maintenance intervals 48
7.3 Maintenance list for annual maintenance 48
7.4 Maintenance of the Condair RH 49
7.4.1 Replacement of the steam cylinder 49
7.4.1.1 Removal of the steam cylinder 49
7.4.1.2 Installation of the steam cylinder 50
7.4.2 Removal and installation of the components of the Condair RH for maintenance 51
7.4.2.1 Removal and installation of the cover of the internal water system 51
7.4.2.2 Removal and installation of the drain valve 52
7.4.2.3 Removal and installation of the inlet valve 54
7.4.2.4 Removal and installation of the ll cup and the hoses 55
7.4.3 Notes on cleaning the unit components 56
7.4.4 Notes on cleaning agents 57
8 Fault elimination 58
8.1 Important notes on fault elimination 58
8.2 Fault indication on the Condair RH 59
8.3 Fault indication in the HumiLife app 59
8.4 Malfunction lists 60
8.4.1 Warning list 60
8.4.2 Error list 61
9 Taking out of service/Disposal 63
9.1 Taking out of service 63
9.2 Disposal/Recycling 63
10 Productspecications 64
10.1 Technical data 64
10.2 Dimensional drawing Condair RH 65

5Introduction
1 Introduction
1.1 To the very beginning
We thank you for having purchased a CondairRHsteamhumidier.
The Condair RH steam humidier incorporates the latest technical ad van ces and meets all recognized
safety standards. Nevertheless, improper use of the Condair RH steam humidier may result in danger
to the user or third parties and/or damage to property.
To ensure a safe, proper, and economical operation of the Condair RH steam humidier, 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 corresponding steam humidica-
tion system.
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 and operation manual
Limitation
ThesubjectofthisinstallationandoperationmanualistheCondairRHsteamhumidierinits
different versions. The steam distribution units, options and accessories are only described insofar as
this is necessary for proper installation and operation of the equipment. Further information on options
and accessories can be obtained in the respective instructions.
This installation and operation manual is restricted to the installation, commissioning, operation,
maintenance and troubleshooting of the steam humidier Condair RH and is meant for well trained
personnelbeingsufcientlyqualiedfortheirrespectivework.
This installation and operation manual is supplemented by various separate items of documentation
(e.g. spare parts list), which are included in the delivery as well. Where necessary, appropriate cross-
references are made to these publications in the installation and operation manual.

6Introduction
Denitions
CAUTION!
The catchword "CAUTION" used in conjunction with the caution symbol in the circle designates notes
in this installation and operation manual that, if neglected, may cause damage and/or malfunction
of the unit or damage to property.
WARNING!
The catchword "WARNING" used in conjunction with the general caution symbol designates safety and
danger notes in this installation and operation manual that, if neglected, may cause injury to persons.
Instead of the general hazard symbol, other specic hazard symbols can also be used.
DANGER!
The catchword "DANGER" used in conjunction with the general caution symbol designates safety and
danger notes in this installation and operation manual that, if neglected, may lead to severe injury
or even death of persons. Instead of the general hazard symbol, other specic hazard symbols can
also be used.
Safekeeping
Please safeguard this installation and operation manual in a safe place, where it can be immediately
accessed. If the steam humidication system changes hands, the documentation must be passed on
to the new operator.
If the installation and operation manual gets misplaced, please contact your Condair representative.
Language versions
This installation and operation manual is available in other languages. Please contact your Condair
representative for information.

7For your safety
2 For your safety
General
Every person working with the steam humidication system must have read and understood this instal-
lation and operation manual before carrying out any work.
Knowing and understanding the contents of this installation and operation manual is a basic requirement
for protecting personnel against any kind of danger, to prevent faulty installation and operation, and to
operate the Condair RH steam humidier safely and correctly.
All icons, signs and markings applied to the Condair RH steam humidier must be observed and kept
in readable state.
Qualicationofpersonnel
All work described in this installation and operation manual may only be carried out by specialists
whoarewelltrainedandadequatelyqualiedandareauthorizedbythecustomer.
For safety and warranty reasons any action beyond the scope of this manual must be carried out only
by qualied personnel authorised by Condair.
It is assumed that all persons working with the steam humidication system are familiar and comply with
the appropriate regulations on work safety and the prevention of accidents.
The Condair RH can be used by children aged 8 years and over and by persons with reduced physical,
sensory or mental capabilities or a lack of experience and knowledge if they are supervised or have
been instructed in the safe use of the device and understand the resulting dangers. Children are not
allowed to play with the device. Cleaning and user maintenance must not be carried out by children
without supervision.
Intended use
TheCondairRHsteamhumidierisintendedexclusivelyforairhumidicationinacontrolled
residential heat recovery ventilation system (HRV) via a steam distribution unit approved by
Condairwithinthespeciedoperatingconditions(seeSection 10.1). Any other type of application,
without the written consent of Condair, is considered as not conforming with the intended purpose and
may lead to the steam humidication system becoming dangerous.
Operation of the equipment in the intended manner requires that all the information contained in this
installation and operation manual are observed (in particular the safety instructions).

8For your safety
Dangerthatmayarisefromthesteamhumidicationsystems
DANGER!
Dangerofelectrichazard!
TheCondairRHsteamhumidierismainspowered.Livepartsmaybeexposedwhentheunit
is open. Touching live parts may cause severe injury or danger to life.
Prevention: Before carrying out any work set the Condair RH out of operation as described in Section
6.5 (switch off the unit, disconnect it from the mains and stop the water supply) and secure the unit
against inadvertent power-up.
DANGER!
Dangerofelectrichazard!
If the main cable of the Condair RH is damaged, it must be replaced by the manufacturer, his
customermaintenanceorasimilarlyqualiedpersoninordertoavoidhazards.
WARNING!
Hot water vapour - Danger of scalding!
The Condair RH produces hot water vapour. There is danger of scalding when coming in con-
tact with hot water vapour.
Prevention: Do not carry out any work on the steam humidication system during operation (steam
lines, steam distribution unit, etc.). If the steam humidication system is leaky set the Condair RH im-
mediately out of operation as described in Section 6.5. Correctly seal the steam humidication system
before putting the unit into operation again.
WARNING!
Danger of burning!
During operation the components of the steam system (steam cylinder, steam lines, etc.) get
very hot (up to 100 °C). There is danger of burning when touching the hot components.
Prevention: Before carrying out any work on the steam system set the Condair RH out of operation
as described in Section 6.5, then wait until the components have cooled down sufciently thus pre-
venting danger of burning.
WARNING!
High humidity can promote the growth of biological organisms and thereby endanger the
health of people.
Prevention: To prevent this, the duct or steam distribution unit into which the steam is blown must be
cleaned regularly in accordance with the applicable hygiene guidelines.
CAUTION!
The device must not be operated with a DC voltage supply.

9For your safety
Preventing unsafe operation
All persons working with the Condair RH must report any alterations to the unit that may affect safety to
the owner without delay, to shut down the Condair RH and to secure it against accidental power-up.
Prohibitedmodicationstotheunit
Nomodicationsmustbeundertaken on the Condair RH without the express written consent of Condair.
For the replacement of defective components use exclusively original accessories and spare parts
available from your Condair representative.

10 Checking the delivery / storage and transport
3 Checking the delivery / storage and transport
3.1 Checking the delivery
The Condair RH is delivered together with the corresponding steam distribution unit as a complete pack-
age. Please refer to the information on the scope of delivery in the installation and operating instructions
of the corresponding steam humidication system.
After receiving:
– Inspect shipping boxes for damage.
Any damages of the shipping boxes must be reported to the shipping company without delay.
– Check packing slip to ensure all parts has been delivered.
All material shortages are to be reported to your Condair supplier within 48 hours after receipt of the
goods. Condair Group AG assumes no responsibility for any material shortages beyond this period.
– Unpack the parts/components and check for any damage.
If parts/components are damaged, notify the shipping company immediately.
– Check whether the components are suitable for installation on your site according to the unit data
stated on the specication label.
3.2 Storage and Transportation
Storing
Until installation store the Condair RH in its original packaging in a protected area meeting the following
requirements:
– Room temperature: 5 ... 40 °C
– Room humidity: 10 ... 75 %rh
Transportation
For optimum protection always transport the Condair RH and components in their original packaging
and use appropriate lifting/transporting devices.
Packaging
If the packaging is to be disposed of, observe the local regulations on waste disposal. Please recycle
packaging where possible.

11Product overview
4 Product overview
4.1 Model overview
Model Condair RH
RH 1.8 RH 3.6
Max. steam capacity 1.8 kg/h 3.6 kg/h
Heating voltage 230V/1~/50-60Hz
Integrated P/PI controller 
Admissible control signals 0-10V, 2-10V, 0-20mA, 4-20mA
Operating parameters congurable via HumiLife app
4.2 Product designation
The identication of the unit is found on the specication label (for the location of the specication label,
see unit overview):
Condair Ltd. 2740 Fenton Road, Ottawa, Ontario K1T3T7, Canada
Type: RH-EU 1.8kg/h Serial-No: XXXXXXX 04/2020
Heating voltage: 230V1~/50-60Hz El. Power: 1.5 kW 12 A
Steam capacity: 2 kg/h Contr.volt.: AC 200-240V/50-60Hz
Water press.: 100..1000 kPa (1..10 bar)
Engineered in Canada, Made in Canada
Type designation Serial number (7 digits)
Production
Month/Year
Heating voltage
Maximum steam capacity
Admissible water supply pressure
Power consumption
Control voltage
Field with certication symbols

12 Product overview
4.3 ConstructionoftheCondairRHsteamhumidier
1Unit door
2Cover control compartment
3Cover internal water system
4 Water supply hose
5Water overow hose
6Water ll hose
7 Steam cylinder sealing
8 Steam cylinder
9Drain pan
10 Water inlet valve
11 Drain valve
12 Cable feedthrough
13 LED's operating status
14 Specication label
15 On/Off switch
16 Driver board
17 Steam connection unit
18 Steam outlet connection
19 Fill cup
Fig. 1: Construction of the Condair RH steam humidier
17
18 17
16
15
13
14
1
4
5
6
19 19
2
12
11
3
8
7
109

13Product overview
4.4 Functional description
The Condair RH steam humidier is an atmospheric steam generator. It operates on the electrode heat-
ing principle and is designed for duct air humidication via the Condair VS, Condair DS or Condair DV
steam distribution unit in a residential heat recovery ventilation system (HRV).
Water supply
The water is supplied via a lter valve (accessory "Z261") to the steam humidier. It reaches the steam
cylinder via the inlet valve and the open ll cup.
Note: the open ll cup is designed in such a way, that the supply water is separated from the unit water.
That means, that no unit water can ow back into the supply water line.
Steam generation
Any time steam is requested, the electrodes are supplied with voltage via the main contactor. Simultane-
ously, the inlet valve opens and the water enters the steam cylinder from the bottom via the ll cup and
lling hose. As soon as the electrodes come in contact with the water, current begins to ow between the
electrodes, generating heat and increasing the water evaporation rate. The more of the electrode surface
area that is exposed to conductive water, the higher the current consumption and thus steam production.
Upon reaching the requested steam capacity, the inlet valve closes. If the steam generation decreases
below a certain percentage of the required capacity, due to lowering of the water level (e.g. because of
the evaporation process or drainage), the inlet valve opens until the required capacity is available again.
If the required steam capacity is lower than the actual output, the inlet valve is closed until the desired
capacity is achieved by lowering of the water level (evaporation process).
Level monitoring
A maximum level sensor, provided in the steam cylinder, detects when the cylinder water level is at the
maximum. When the sensor comes in contact with water, the inlet valve will close after a short delay.
Drainage
As a result of the evaporation and rell process, the conductivity of the water increases due to an escalat-
ing mineral concentration. Eventually, an inadmissibly high current consumption would take place if this
concentration process were permitted to continue. To prevent this concentration from reaching a value,
unsuitably high for the operation, a certain amount of water is perio dically drained from the cylinder and
replaced by fresh water.
Control
The steam production is controlled via the internal continuous Proportional (P) / Proportional-Integral
(PI) controller.
Steam distribution
The steam produced by the Condair RH steam humidier is distributed in the duct air via the steam
distribution units Condair VS, Condair DS or Condair DV installed in the supply air duct.

14 Product overview
4.5 System overviews
4.5.1 System overview Condair RH-VS
A1
B1
Condair VS
Condair RH
B2
Humidity sensor
Steam hose (DS22)
Filter valve (accessory Z261)
or
Shutoff-valve and lter 125 µm
Water supply line
(PEX reinforced hose- G 3/4"/G 3/4")
2...6 bar
4...30 °C
125 -1250 µS/cm
Drain hose,
innner diameter ø22 mm
Open funnel with trap
(by others)
Ventilation unit
HRV
Mains socket
230 V/1~/50-60 Hz
(by others)
Mains cable
(RH 1.8 only) 1)
Insulation hose EcoTherm
Air ow monitor
(external safety loop)
Maximum humidistat
(external safety loop)
Insulation
(slotted fabric hose)
Condensate hose KS10
(ø8/ø12 mm)
1) The Condair RH 3.6 is supplied without a mains
cable and must be connected to the mains via an
electrical isolator.
Fig. 2: System overview Condair RH-VS (Example)

15Product overview
4.5.2 System overview Condair RH-DS
Condair RH
A1
B1
B2
Condair DS
Humidity sensor
Air ow monitor, optional
(external safety loop)
Drain hose,
innner diameter ø22 mm
Maximum humidistat
(external safety loop)
KWL
Open funnel with trap
(by others)
Open funnel with trap
(by others)
Steam hose (DS22)
Insulation hose EcoTherm
Mains socket
230 V/1~/50-60 Hz
(by others)
Mains cable
(RH 1.8 only) 1)
Condensate hose KS10
(ø8/ø12 mm)
Insulation (slotted
fabric hose)
Filter valve (accessory Z261)
or
Shutoff-valve and lter 125 µm
Water supply line
(PEX reinforced hose- G 3/4"/G 3/4")
2...6 bar
4...30 °C
125 -1250 µS/cm
Steam hose (DS22)
Insulation hose EcoTherm
1) The Condair RH 3.6 is supplied without a mains
cable and must be connected to the mains via an
electrical isolator.
Fig. 3: System overview Condair RH-DS (Example)

16 Product overview
4.5.3 System overview Condair RH-DV
B2
Condair DV
Condair RH
A1
B1
KWL
Humidity sensor
Steam hose (DS22)
Insulation hose
EcoTherm
Drain hose,
innner diameter ø22 mm
Maximum humidistat,
(external safety loop)
Open funnel with trap
(by others)
Open funnel with trap
(by others)
Mains socket
230 V/1~/50-60 Hz
(by others)
Mains cable (RH 1.8 only) 1)
Condensate hose KS10 (ø8/ø12 mm)
Air ow monitor, optional
(external safety loop)
Insulation (slotted fabric hose)
Filter valve (accessory Z261)
oder Absperrhahn und Filter 125 µm
Water supply line
(PEX reinforced hose- G 3/4"/G 3/4")
2...6 bar
4...30 °C
125 -1250 µS/cm
1) The Condair RH 3.6 is supplied without a mains
cable and must be connected to the mains via an
electrical isolator.
Fig. 4: System overview Condair RH-DV (Example)

17Product overview
4.6 Accessories
Accessory unit mounting
Condair RH
RH 1.8 RH 3.6
Ceiling bracket RH 1x
Accessory for water installation
Condair RH
RH 1.8 RH 3.6
Filter valve 1x Z261
Accessory steam installation
Condair RH
RH 1.8 RH 3.6
Steam hose DS22
Insulation hose for steam hose EcoTherm
Condensate hose KS10
Insulation hose for condensate hose Slotted fabric hose
Accessory humidity control
Condair RH
RH 1.8 RH 3.6
Duct humidity sensor CDC
Duct Maximum humidistat CHD-S
Duct air ow monitor CDA-S

18 Installation
5 Installation
5.1 Safety instructions for installation work
Personnelqualications
All mounting and installation work may be performed only by suitably trained, adequately qualied person-
nel who are authorised by the operator. It is the responsibility of the operator to check the qualication.
General notes
Strictly observe and comply with all information given in the present installation manual regarding the
mounting of the unit and the installation of water, steam and electricity.
Observe and comply with all local regulations dealing with water, steam and electrical installations.
Safety
For some of the installation work, the device covers of the Condair RH must be removed. Therefore
make sure to observe the following safety notes:
DANGER!
Danger of electric shock
If the Condair RH is opened, live parts can be touched, which can lead to serious injuries or
death.
Prevention: Before starting any work on the Condair RH, make sure that the unit is disconnected from
the power supply, the water supply is closed and that the unit is secured against inadvertent starting up.
CAUTION!
Theelectroniccomponentsinsidethesteamhumidieraresensitivetoelectrostaticdischarge.
Prevention: Before starting any work on the electrical equipment of the unit measures must be taken
against damage from electrostatic discharge (ESD protection).

19Installation
5.2 Placementandinstallationofthesteamhumidier
5.2.1 Placementofthesteamhumidier
Minimum clearances, unit dimensions and weights
265 mm
≥500 mm
≥200 mm
≥200 mm *
*
≥600 mm
*
*
467 mm
175 mm
* recommended minimum clearances
Note: For the installation of the steam humidier
between the pipes of the HRV ventilation unit, there
must be a minimum clearance of 300 mm between
the pipes.
Net weight 8.6 kg
Operating weight 11.8 kg
Fig. 5: Minimum clearances, unit dimensions and weights

20 Installation
Notes on locating the unit
The positioning of the Condair RH depends largely on the location of the steam distribution unit. To
ensure proper functioning of the steam humidier and to obtainanoptimalefciency, the following
points must be considered and observed when choosing the location for the steam humidier:
– Install the steam humidier so that:
– the length of the steam hose is kept as short as possible (max.4m),
– the minimum bend radius (Rmin= 250 mm) and the minimum upslope and downslope of 10 %
of the steam hose from the steam humidier to the steam distribution unit are maintained.
– The steam humidier is designed for wall mounting or, with the ceiling bracket available as an acces-
sory, for mounting on a ceiling in protected interiors. Make sure that the construction (wall, ceiling,
etc.) to which the humidier is to be mounted, offers a sufcientload-bearingcapacity (take notice
of the weight information, see Fig. 5), and is suitable for the installation.
Fig. 6: Example: Wall and ceiling mounting Condair RH