Condair RM Series User manual

Steam humidifier
Condair RM
2598538-0 EN 2002
OPERATION MANUAL
Humidication and Evaporative Cooling

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 maintenance 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 operation manual 5
2 For your safety 7
3 Product Overview 9
3.1 Models overview 9
3.2 Identication of the unit 10
3.3 Construction of the Condair RM steam humidier 11
3.4 Functional description 12
3.5 System overview Condair RM 13
4 Operation 14
4.1 First-time commissioning 14
4.2 Display and operating elements 15
4.3 Commissioning after an interruption of operation 16
4.4 Notes on operation 17
4.5 Inspections during operation 17
4.6 Taking the unit out of operation 18
5 Working with the Display 19
5.1 Home screens 19
5.1.1 Home screens 19
5.1.1.1 Home screens with activated "External control" 19
5.1.1.2 Homescreens with humidity sensor and activated internal controller 20
5.2 Function of the warning triangle 21
5.3 Navigation elements 21
5.4 Conguration of the control software 22
5.4.1 Accessing the main menu 22
6 CongurationofCondairRMcontrolsoftware 24
6.1 Conguration procedures 24
6.1.1 Conguration procedure for humidity control via an external humidity controller 24
6.2 Settings in the "Service" menu 28
6.3 Settings in the "Engineering" menu 29

4Contents
7 Maintenance 33
7.1 Important notes on maintenance 33
7.2 Maintenance intervals 34
7.3 Maintenance list 36
7.4 Removing and installing components for maintenance 37
7.4.1 Preparing the Condair RM for the removal of components 37
7.4.2 Removal and installation of the steam tank 37
7.4.3 Removal and installation of the lling cup, the level unit and the water hoses 42
7.4.4 Removal and installation of the drain pump 44
7.4.5 Removal and installation of the inlet valve 45
7.4.6 Removal and installation of the steam tank receptacle 46
7.5 Notes on cleaning the unit components 47
7.6 Notes on cleaning agents 49
7.7 Replacing the optional lter cartridge 50
7.8 Resetting the maintenance counter 53
8 Fault elimination 54
8.1 Important notes on fault elimination 54
8.2 Fault indication 55
8.3 Malfunction list 56
8.4 Resetting the fault indication 62
8.5 Replacing the fuses and backup battery in the control unit 63
9 Taking out of service/Disposal 65
9.1 Taking out of service 65
9.2 Disposal/Recycling 65
10 Productspecication 66
10.1 Performance data / Fuses "F6" voltage supply 66
10.2 Operating data 66
10.3 Connections/Dimensions/Weights 67
10.4 Certicates 67

5Introduction
1 Introduction
1.1 To the very beginning
We thank you for having purchased the Condair RMsteamhumidier.
The Condair RM steam humidier incorporates the latest technical ad van ces and meets all recognized
safety standards. Nevertheless, improper use of the Condair RM 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 RM 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 humidication 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 operation manual
Limitation
The subject of this operation manual is the Condair RMsteamhumidierinitsdifferentversions.
Options and accessories are only described insofar as this is necessary for proper operation of the equip-
ment. Further information on options and accessories can be obtained in the respective instructions.
This operation manual is restricted to the commissioning, operation,maintenance and troubleshoot-
ing of the Condair RM steam humidier and is meant for welltrainedpersonnelbeingsufciently
qualiedfortheirrespectivework.
This operation manual is supplemented by various separate items of documentation (e.g. installation
manual, spare parts list, etc.), which are included in the delivery as well. Where necessary, appropriate
cross-references are made to these publications in the operation manual.

6Introduction
Symbols used in this manual
CAUTION!
The catchword "CAUTION" used in conjunction with the caution symbol in the circle designates notes
in this operation manual that, if neglected, may cause damage and/or malfunction of the unit or
damage to property.
WARNING!
The catchword "WARNING" used in conjunction with the general caution symbol designates safety
and danger notes in this operation manual that, if neglected, may cause injury to persons.
DANGER!
The catchword "DANGER" used in conjunction with the general caution symbol designates safety and
danger notes in this operation manual that, if neglected, may lead to severe injury or even death
of persons.
Safekeeping
Please safeguard this operation manual in a safe place, where it can be immediately accessed. If the
equipment changes hands, the documentation must be passed on to the new operator.
If the documentation gets misplaced, please contact your Condair representative.
Language versions
This 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 Condair RM must have read and understood the Condair RM operation
manual and installation manual before carrying out any work.
Knowing and understanding the contents of the operation manual and installation manual is a basic
requirement for protecting personnel against any kind of danger, to prevent faulty operation, and to
operate the Condair RM safely and correctly.
All icons, signs and markings applied to the components of the Condair RM must be observed and kept
in readable state.
Qualicationofpersonnel
All work described in this 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 Condair RM are familiar and comply with the appropriate
regulations on work safety and the prevention of accidents.
The Condair RM steam humidier may not be used by persons (including children) with reduced physi-
cal, sensory or mental abilities or persons with lacking experience and/or knowledge.
Children must be supervised to make sure that they do not play with the Condair RM steam humidier.
Intended use
The Condair RMsteamhumidierisintendedexclusivelyforairhumidicationinHVACsystems
viaasteamdistributorapprovedbyCondairwithinspeciedoperatingconditions. 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 Condair RM becoming dangerous and will void any warranty.
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 Condair RMsteamhumidier
DANGER!
Dangerofelectrichazard!
The Condair RM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 RM out of operation as described in chapter
4.6 (switch off the unit, disconnect it from the mains and stop the water supply) and secure the unit
against inadvertent power-up.
WARNING!
Hotwatervapour-Dangerofscalding!
The Condair RM 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 system during operation (steam lines, steam
distributor, etc.). If the steam system is leaky set the Condair RM immediately out of operation as
described in chapter 4.6. Correctly seal the steam system before putting the unit into operation again.
WARNING!
Danger of burning!
During operation the components of the steam system (steam tank, steam distributor, 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 RM out of operation
as described in chapter 4.6, then wait until the components have cooled down sufciently thus pre-
venting danger of burning.
Preventing unsafe operation
If it is suspected that safe operation is no longer possible, the Condair RM should immediately be
shut down and secured against accidental power-up according to chapter 4.6. This can be the case
under the following circumstances:
– if the Condair RM is damaged
– if the electrical installations are damaged
– if the Condair RM is no longer operating correctly
– if connections and/or piping are not sealed
All persons working with the Condair RM must report any alterations to the unit that may affect safety
to the owner without delay.
Prohibitedmodicationstotheunit
Nomodicationsmustbeundertaken on the Condair RM without the express written consent of
Condair Group AG.
For the replacement of defective components use exclusively original accessories and spare parts
available from your Condair representative.

9Product Overview
3 Product Overview
3.1 Models overview
Steam humidiers Condair RM are available with different heating voltages and steam capacities
ranging from 2 kg/huptoamaximumof8kg/h.
Model
Condair RM
Max.steamcapacity
in kg/h
PNmax.
in kW
Heatingvoltage
2 2 2.0
230 V/1~/50...60 Hz
4 4 3.5
6 6 5.0
8 8 6.5
6 6 5.0 400 V/3~/50...60 Hz
8 8 6.5
Key model designation
Example:
Condair RM 8
Product designation
Max. steam capacity in kg/h

10 Product Overview
3.2 Identicationoftheunit
The identication of the unit is found on the specication label:
Type designation Serial number (7 digits) Month/Year
Heating voltage
Maximum steam capacity per unit
Admissible water supply pressure
Power consumption heating
Field with certication symbols
Fig. 1: Location of the specication label
Condair Group AG, Gwattstrasse 17, 8808 Pfäfkon SZ, Switzerland
Type: Condair RM 8 Serial No: XXXXXXX 01.20
Heating voltage: 230 V/1~/50-60 Hz Heating power: 6.5 kW 28.3 A
Steam capacity: 8 kg/h
Water press.: 100..1000kPa (1..10 bar)
Engineered in Switzerland, Made in Germany

11Product Overview
1Water supply connector G 3/4"
2Inlet valve
3Water supply hose
4 Drain pump
5Water drain connector ø30 mm
6 Water ll and drain hose
7 Level unit
8Drain hose
9Filling cup
10 Condensate connector ø10 mm (back to steam tank)
11 Condensate connector ø10 mm (to drain)
12 Steam outlet connector ø30 mm
13 24 V power supply
14 Heating elements
15 Pressure equalizing hose
16 Steam tank
17 Coupling sleeve
18 Level hose
19 Pump hose
20 Manual drain hose
21 Unit switch
22 Status LED
23 Display
24 Specication label
25 RM control board
26 Terminals voltage supply ("L1", "L2", "L3" and "PE")
27 Heating contactor
28 Terminals voltage supply ("N")
29 Over temperature switch
Fig. 2: Construction Condair RM steam humidier
3.3 Construction of the Condair RMsteamhumidier
1
2
3
6
4
5
7
9
11
12
10
8
20
19
18
13
15
14
25
27
26
28
13
21
17
16
24
29
23
22

12 Product Overview
3.4 Functional description
The Condair RM steam humidier is an atmospheric steam humidier. It operates on the resistance
heating principle and is designed for indirect humidication via a steam distributor in venti lating and
air-conditioning systems.
Water supply
The water is supplied via a lter valve (accessory "Z261") to the steam humidier. It reaches the steam
tank via the level controlled inlet valve and the open lling cup.
Note: The open lling 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.
Level regulation
The water level in the steam tank is continuously monitored with the level unit. If the water level reaches
a preset level (due to the evaporation process) the level unit supplies a signal to the controller. This
opens the inlet valve and the steam tank is lled up. When the preset operating level is reached, the
level unit supplies another signal to the controller to close the inlet valve.
The pressure equalizing pipe connected to steam tank and the level unit ensures that the water levels
are the same in the steam tank and the level unit.
Steam generation regulation
The steam is produced in the steam tank by one or several resistance heating elements. The integrated
continuous controller or an external controller controls the steam production in steps from 0 to 100 %.
Alternatively the Condair RM can be controlled also via an On/Off controller.
Flushing
The evaporation process increases the concentration of minerals in the water of the steam tank. A suitable
volume of water must be ushed out of the steam tank from time to time and replaced by fresh water to
ensure that this concentration does not exceed a specic value unsuitable for operation.
The Condair RM consists of the following two forms of ushing:
– Automaticushingtakes place as soon as the water in the steam tank exceeds the upper operat-
ing level (e.g. by foaming of the water).
– Flushing dependent on water quality.
Automatic or water quality dependent ushing takes place depending on the water quality and the op-
erating data. If the lowest operating level is reached during the ushing process, the inlet valve remains
open until the water level in the steam tank has reached the normal working level again. If the lowest
operating level is not reached, the inlet valve is closed.

13Product Overview
KS10 DS60
Z261
DV61
1
2
3
4
5
6
13
21
12
11
10
7
9
17
14
16
15
20
18
19
8
Condair RO-A pure water
system (shown scaled
down), details see sepa-
rate manual
3.5 System overview Condair RM
1Steam humidier
2 Condensate connector ø10 mm (to drain)
3 Condensate connector ø10 mm (back to steam tank)
4 Steam outlet connector ø22 mm
5 Water drain connector ø30 mm
6 Water supply connector G 3/4"
7 Water supply line (by others)
8 Filter cartridge (accessory)
9 Manometer (recommended, by others)
10 Filter valve (accessory "Z261")
11 Open funnel with water trap (by others)
12 Drain hose (by others)
13 Electrical isolator voltage supply
14 Steam hose (accessory "DS60")
15 Condensate hose (accessory "KS10)
16 Steam distributor (accessory "DV61-...)
17 Air ow monitor (by others)
18 Maximum humidistat
19 Humidity controller or humidity sensor (supply air control)
20 Humidity controller or humidity sensor (extract air control)
21 Pure water system Condair RO-A (separate product)
Fig. 3: System overview Condair RM
Return Duct
Supply duct

14 Operation
4 Operation
The Condair RM steam humidier may be commissioned and operated only by persons familiar with the
Condair RM steam humidier and adequately qualied. It is the owner’s responsibility to verify proper
qualication of the personnel.
4.1 First-time commissioning
The rst-time commissioning must always be done by a service technician of your Condair representative
or a well trained and authorised person of the customer. Therefore the current manual does not provide
detailed information on this procedure.
The following steps are carried out upon rst-time commissioning in the specied order:
• Inspecting the steam humidier for correct installation.
• Inspecting the electrical installation
• Inspecting the water installation
• Inspecting the steam installation
• Flushing and deaerating the water supply line
• Determining the carbonate hardness of the supply water (by measurement or from the local water
supplier)
• Conguring the control software of the Condair RM via the RM Display (see chapter 6.1).
• Carrying out test runs including checking of the control and monitoring devices.
• Filling out the commissioning record.

15Operation
4.2 Display and operating elements
External electrical isolator for voltage supply (not includ ed in the
delivery, must be install ed in the mains supply line)
Display
Status LED
– green: Condair RM is humidifying
– green pulsing: Condair RM is in standby operation
– yellow: Warning present or maintenance due
– red: Fault present
Unit switch
Fig. 4: Display and operating elements
DANGER!
Risk of electric shock!
After switching off the unit switch, there is still live voltage inside the control compartment of the Condair
RM.Therefore,beforeopeningtheunitthesteamhumidiermustbealwaysseparatedfrom
the mains supply/supplies via the electrical isolator(s).

16 Operation
4.3 Commissioning after an interruption of operation
The following description outlines the start up procedure after an interruption of operation (e.g. after
servicing the steam humidier). It is assumed that rst-time commissioning has been carried out prop-
erly by the service technician of your Condair representative and the Condair RM has been congured
accordingly.
1. When putting the steam humidier into operation after work has been carried out on the steam sys-
tem, the operating personnel must check whether the steam pipe is open over the entire length.
WARNING!
Danger of scalding!
Asteamlinethatisreducedincrosssectionorcompletelyclosedwillcauseanexcessive
increase in pressure in the steam tank when the unit is operating and could lead to the risk
of scalding accidents!
2. Examine the steam humidier and installation for possible damage.
DANGER!
A damaged unit or systems with damaged installations may present danger to human life
or cause severe damage to material assets.
Therefore: Damaged systems and/or systems with damaged or faulty installations must not be
operated.
3. Relocate the unit cover and lock it with the retaining screw.
4. Open the lter valve / shut-off valve in the water supply line.
5. Switch on the electrical isolator in the mains supply line.
6. Switch on the unit switch of the steam humidier.
The Condair RM carries out an automatic system test (initialising). If a malfunction is detected during
the system test, the status LED indicates a "Warning" (LED lights yellow) or "Fault" (LED lights red).
If the is successful, the steam tank lls up and a function check on the level unit is carried out.
Note: If a malfunction is detected during the function check on the level unit, the status LED indicates
a "Warning" (LED light yellow) or "Fault" (LED light red).
If the function check on the level unit is successful, the Condair RM will be in normal operating
mode and the LED blinks green. As soon as a steam demand is present or the humidifying opera-
tion is started manually, the heating current is switched on, the status LED lights green and steam
is produced after a short time.

17Operation
4.4 Notes on operation
After 24 hours in standby operation (no humidity demand), the steam tank is emptied automatically. The
steam tank remains empty and is not lled until a steam demand is present or the humidifying operation
is started manually.
If, during operation, it is recognized that consistently foaming occurs in the steam tank, the carbonate
hardness setting of the inlet water should be increased. As a result, the steam tank of the Condair RM
is drained more frequently and thus the foam formation is counteracted.
4.5 Inspections during operation
During operation the Condair RM and the humidication system have to be inspected weekly. On this
occasion check the following:
• the water and steam installations for any leaks.
• the steam humidier and the other system components for correct xing and any damage.
• the electric installation for any damage.
If the inspection reveals any irregularities (e.g. leakages, error indication) or any damaged components take
the Condair RM out of operation as described in chapter 4.6. Then, contact your Condair representative.

18 Operation
4.6 Taking the unit out of operation
In order to take the Condair RM steam humidier out of operation (e.g. for maintenance purpose), per-
form the following steps:
1. If maintenance work on the water system of the Condair RM is to be carried out, the steam tank
must be emptied. Proceed as follows:
a. Switch off the Condair RM via the unit switch.
b. Wait 5 seconds, then switch the Condair RM on again. If the drain pump starts, wait 60 seconds
until the steam tank has been emptied. If the drain pump does not start automatically within 10
seconds (e.g. because of a pump failure), drain the steam tank manually via the manual drain
hose (see step 5).
2. Close the shut-off valve in the water supply line.
3. Switch off the Condair RM via the unit switch (if not yet switched off).
4. Disconnect Condair RM from the mains: Switch off the electrical isolator in the mains supply line
and secure switch in "Off" position against accidentally being switched on, or clearly mark the switch.
5. If you have to carry out work on the water system: Loosen the retaining screw on the unit cover,
remove the unit cover, then drain (residual) water from the steam tank into an empty bucket via the
manual drain hose (position of the drain hose, see Fig. 2).
WARNING!
Danger of burning!
The water in the steam tank can be hot (up to 95 °C). There is danger of burning when
draining the steam tank via the manual drain hose shortly after steam has been produced.
Prevention: wear isolating gloves and be careful when draining the water via the manual drain hose.

19Working with the Display
5 Working with the Display
5.1 Homescreens
After switching on the Condair RM and the automatic system test the steam humidier is in normal
operating mode and the Homescreen is shown. The appearance of the Home screen depends on the
conguration of the control software.
5.1.1 Homescreens
5.1.1.1 Homescreenswithactivated"Externalcontrol"
Externalcontrolenabled,Timerdisabled.
Warning triangle (function see chapter 5.2)
Navigation elements (see chapter 5.3)
Operating status eld
Current demand in % of the maximum steam capacity
Current steam production in % of the maximum steam capacity
0.0 %
Standby
0.0 %
ExternalcontrolandTimerenabled.
Note: In timer mode, steam can only be produced if a timer is active and a demand signal from the external
controller is present, otherwise the unit is in standby mode.
0.0 %
0.0 %
Mo 10:00
Standby
Warning triangle (function see chapter 5.2)
Navigation elements (see chapter 5.3)
Operating status eld.
Current demand in % of the maximum steam capacity.
WeekTimer: Set starting time (weekday/time of day) with timer controlled
humidifying operation.
Note: By pressing this button you access the settings window for determining
the starting time.
Note: After the humidifying operation has started the remaining time until the
end of the humidifying operation is displayed.
Current steam production in % of the maximum steam capacity.

20 Working with the Display
5.1.1.2 Homescreenswithhumiditysensorandactivatedinternalcontroller
Internal controller enabled, Timer disabled.
Warning triangle (function see chapter 5.2)
Navigation elements (see chapter 5.3)
Operating status eld
Current measured humidity in the air duct/room in % of the relative humidity
Current setpoint in% of the relative humidity
40.9 %
HVAC
60.0 %
Internal controller and Timer enabled.
Note: In timer mode, steam can only be produced if a timer is active and a demand signal from the internal con-
troller is present, otherwise the unit is in standby mode.
40.9 %
60.0 %
Mo 10:00
HVAC
Warning triangle (function see chapter 5.2)
Navigation elements (see chapter 5.3)
Operating status eld.
Current measured humidity in the air duct/room in % of the relative humidity
WeekTimer: Set starting time (weekday/time of day) with timer controlled
humidifying operation.
Note: By pressing this button you access the settings window for determining
the starting time.
Note: After the humidifying operation has started the remaining time until the
end of the humidifying operation is displayed.
Current setpoint in% of the relative humidity