Condair EL Series User manual

INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
Outdoor Steam Humidifier
Condair EL / RS
2584598-E EN 2209
Humidication and Evaporative Cooling
IMPORTANT! Read and save these instructions. This manual to be left with the equipment.

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
Condair EL/RS Outdoor 2584598-E EN 2209
Contents
1 Introduction 5
1.1 Before You Start! 5
1.2 General 5
2 For Your Safety 7
3 Receiving and Storage 9
3.1 Inspection 9
3.2 Storage and transportation 9
4 Product Overview 10
4.1 General Description 10
4.2 Model Designation 12
4.3 Models Overview 12
4.4 Options 16
4.5 Accessories 16
5 Installation 17
5.1 General 17
5.2 Installation Overview 17
5.2.1 Installation Overview Mounting on Air Handling Unit 18
5.2.2 Installation Overview Mounting on Mounting Rack 20
5.2.3 Installation Overview Mounting on Exterior Wall 22
5.3 Site Requirements 24
5.4 Mounting the Humidier 26
5.4.1 Location and Suggested Clearances 26
5.4.2 Pipe Chase Location 27
5.4.3 Air Handling Unit Mounting 28
5.4.4 Installation on a Mounting Rack 30
5.4.5 Exterior Wall Mounting 32
5.4.6 Mounting Checklist 34
5.5 Steam Line Connections 34
5.5.1 Steam Line 34
5.5.2 Steam Connections Checklist 35
5.6 Water Connections 36
5.6.1 Water and Drain Lines 36
5.6.2 Water Connections Checklist 39
5.7 Electrical Connections 40
5.7.1 EL Outdoor Cabinet Wiring Diagrams 42
5.7.2 RS Outdoor Cabinet Wiring Diagrams 45
5.7.3 Electrical Connections Checklist 47

4Contents 2584598-E EN 2209 Condair EL/RS Outdoor
6 Operation and Maintenance 48
6.1 General 48
6.2 Commissioning 48
6.3 Operating the Unit 48
6.4 Inspections During Operation 49
7 Maintenance 50
7.1 General 50
7.2 Heater and Fan 50
7.3 Steam Cylinder 51
7.4 Cleaning 51
7.4.1 Scale Management (RS-OC Units only) 51
7.4.2 Restarting After a Freeze-up 52
8 Spare Parts List 53
9 Decommissioning 59
9.1 General 59
9.2 Removal from Service for Disposal or Long-term Storage 59
9.3 Disposal/Recycling 60
10 ProductSpecications 61
10.1 Performance Data 61
10.2 Operating Data 61
10.3 Weights 61
10.4 Dimensions 62

5Introduction
Condair EL/RS Outdoor 2584598-E EN 2209
1 Introduction
1.1 Before You Start!
Thank you for purchasing the Condair EL/RS Outdoor Humidier.
The Condair EL/RS Outdoor Humidier incorporates the latest technical advances and meets recognized
safety standards. Never-the-less, improper use of the Condair EL/RS Outdoor Humidier may result in
danger to the user or third parties, and/or damage to property.
To ensure safe, proper and economical operation of the Condair EL/RS Outdoor Humidier, please
observe and comply with all information and safety instructions contained in this manual, as well as all
relevant documentation of components of the installed 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 General
Limitations
The subject of this manual is the Condair EL/RS Outdoor Humidier. It is intended as a supplement to
the Condair EL/Condair RS installation, operation and maintenance manuals. The various options and
accessories for the Condair EL/RS Outdoor Humidier may only be described in-so-far as is necessary
for proper installation and operation of the equipment. Additional information on available options and
accessories can be obtained in the instructions that are supplied with them.
This manual is intended for well trained personnel who are suitably qualied for their respective tasks.
About this Manual
This manual contains supplementary information that applies specically to the Condair EL/RS Outdoor
Humidier. The Condair EL/Condair RS manuals included with the Condair EL/RS Outdoor Humidier
shipment contain information on installation, operation and maintenance which apply to both the indoor
and outdoor models.
For information on the installation of controls, interior piping, interior wiring and steam lines refer to the
respective Condair EL/Condair RS installation manual.
The operation of the Condair EL/RS Outdoor Humidier is identical to the indoor units. Refer to the
respective Condair EL/Condair RS operation and maintenance manual for details.
The maintenance items described in this manual are specic to the outdoor model. This is in addition
to the regular maintenance that is described in the Condair EL/Condair RS operation and maintenance
manual.
All illustrations in this manual are for representation purposes only. Actual appearance may vary.

6Introduction 2584598-E EN 2209 Condair EL/RS Outdoor
Safety Warnings Usage
CAUTION!
The word "CAUTION" in conjunction with the general caution symbol is used to provide safety
instructions that, if neglected, may cause damage and/or malfunction of the unit or damage to
property.
WARNING!
The word "WARNING" in conjunction with the general warning symbol is used to provide safety
instructions that, if neglected, may cause injury to personnel. Other specic warning symbols may
also be used in place of the general symbol.
DANGER!
The word "DANGER" in conjunction with the general danger symbol is used to provide safety
instructions that, if neglected, may cause severe injury to personnel or even death. Other specic
danger symbols may also be used in place of the general symbol.
Storage of Manual
Keep this manual in a place where it is safe and readily accessible. If the equipment is moved to another
location, please ensure that it remains with the equipment.
If the manual is lost or misplaced, please contact your Condair representative for a replacement.

7For Your Safety
Condair EL/RS Outdoor 2584598-E EN 2209
2 For Your Safety
General
Every person who is tasked with the installation, operation and maintenance of the Condair EL/RS
Outdoor Humidier must read and understand this manual, as well as the respective Condair EL/Condair
RS installation, operation and maintenance manuals before performing any work. Knowing and under-
standing the contents of these manuals is a basic requirement for protecting personnel against any kind
of danger, preventing faulty operation, and operating the unit safely and correctly.
All labels, signs and marking applied to the Condair EL/RS Outdoor Humidier must be observed and
kept in a readable state.
PersonnelQualications
All procedures described in this manual must only be performed by personnel who are adequately
qualied, well trained and are authorized by the customer.
For safety and warranty reasons, any activity beyond the scope of this manual must only be performed
by qualied personnel authorized by Condair.
All personnel working with the Condair EL/RS Outdoor Humidier must be familiar with, and comply with
the appropriate regulations on workplace safety and prevention of accidents.
Intended Use
TheCondairEL/RSOutdoorHumidierisintendedexclusivelyforairhumidicationusinga
Condair-approvedsteamdistributorwithinspeciedoperatingconditions.Refertochapter 10.2
and chapter 5.3 fordetails.Anyothertypeofapplication,withouttheexpresswrittenconsentof
Condair, is considered to be NOT conforming to its intended purpose, and may lead to dangerous
operation and will void the warranty.
In order to operate the equipment in the intended manner all information contained in this manual,
in particular the safety instructions, must be observed closely.
Safety Precautions that Must be Observed
DANGER!
Risk of electric shock!
TheCondairEL/RSOutdoorHumidierismainspowered.Livepartsmaybeexposedwhenthe
door panels are opened. Touching live parts may cause severe injury or even death.
Prevention:
The Condair EL/RS Outdoor Humidier must be connected to the mains only after all installation work
has been completed, checked for correct workmanship, and the door panels are closed and fastened
securely.
Only qualied personnel should perform maintenance or repairs on the unit.
Do not service the unit while standing on wet or icy surfaces, or in wet weather.
Follow lockout procedures when servicing the unit.

8For Your Safety 2584598-E EN 2209 Condair EL/RS Outdoor
WARNING!
Risk of severe burns from contact with hot steam vapors!
The Condair EL/RS Outdoor Humidier produces hot steam vapors for humidication. Bare skin in
contact with hot steam vapors can result in severe burns.
Prevention:Never perform any work on the steam system (including the steam lines, steam distrib-
utors, etc.) while the humidier is operating. Shut down the humidier and wait for the components to
cool down before working on the steam system.
WARNING!
Risk of severe burns from contact with hot surfaces!
The components in the humidier plumbing cabinet get very hot during operation. Bare skin in contact
with hot surfaces can result in severe burns.
Prevention:Avoid contact with hot surfaces. Shut down the humidier and wait for the components
to cool down before working on the unit.
CAUTION!
Electrostatic discharge (ESD)!
The components in the control cabinet are sensitive to electrostatic discharge (ESD).
Prevention:Take appropriate measures to protect the electronic components inside the unit against
damage caused by electrostatic discharge (ESD). Refer to IEC 61340.
Preventing Unsafe Operation
All personnel working with the Condair EL/RS Outdoor Humidier must immediately report to the cus-
tomer any alterations to the unit that may affect safety, and securethehumidieragainstaccidental
power-up.
ModicationstotheUnitProhibited
ModicationsareNOTpermitted on the Condair EL/RS Outdoor Humidier without the express written
consent of Condair.

9Receiving and Storage
Condair EL/RS Outdoor 2584598-E EN 2209
3 Receiving and Storage
3.1 Inspection
After receiving the shipment, inspect the goods as follows:
– Inspect the shipping boxes for damage.
Report any shipping box damages to the shipping company without delay.
– Check the goods against the packing slip to ensure that all items have been delivered.
– Report any shortages to your Condair representative within 48 hours of receipt of the goods. Condair
does not assume responsibilities for any shortages beyond this period.
– Unpack the parts/components and check for any damage.
If parts/components are damaged, notify the shipping company immediately.
– Verify the model type, capacity and voltage on the specication label to ensure that it is suitable for
your installation site. Refer to Fig. 3.
3.2 Storage and transportation
Moving and handling the unit
The Condair EL/RS Outdoor Humidier is bolted to a shipping skid and enclosed in a packaging crate
before it is shipped from the factory. While still attached to the skid, the humidier can be lifted onto a
rooftop or other mounting location using a forklift or crane. Refer to Table 8 for weights.
CAUTION!
Risk of damage to equipment.
Prevention:Do not use handles on the unit to hoist it onto a rooftop – hoist the unit while it is still
attached to the shipping skid. Do not drop the humidier when handling the unit. Protect the unit
from damage by tethers and other lifting equipment.
Storage
Store the Condair EL/RS Outdoor Humidier in its original packaging inside a protected area that meets
the following requirements until it is installed, or if it needs to be stored for an extended period of time:
– Room temperature: 5 to 40°C
– Room humidity: 10 to 75% RH non-condensing
Transportation
For optimum protection always transport the unit and components in their original packaging, and use
appropriate lifting/transporting devices.
Packaging
Keep the original packaging of the unit/components for later use.
If the packaging needs to be disposed off, observe local regulations on waste disposal. Recycle pack-
aging where possible.

10 Product Overview 2584598-E EN 2209 Condair EL/RS Outdoor
4 Product Overview
4.1 General Description
The Condair EL/RS Outdoor Humidier is CE-declared for installation outdoors. It is housed in an en-
closure that has an IP55 rating, and comes with built-in heating, ventilation and freeze protection for the
plumbing components. The unit is intended to operate in -20 °C to +40 °C temperatures.
The Condair EL/RS Outdoor Humidier comes in three different housing sizes depending on the steam
capacity. Refer to Fig. 1. These units can range from 5 kg/h to 90 kg/h. Refer to chapter 4.3.
Small Housing,
Condair EL-OC
Medium housing,
Condair EL/RS-OC
Large housing,
Condair EL/RS-OC
Fig. 1: Condair EL/RS Outdoor Steam Humidier Model Sizes
Fig. 2 shows the major components of the Condair EL/RS Outdoor Humidier. The built-in heating sys-
tem consists of a heater that is controlled by an internal thermostat (set to 16 °C; 50% on EL units) to
maintain an appropriate operating temperature inside the enclosure. The heat control is automatic and
cannot be activated manually.
A mechanical freeze protection valve drains all the water from the steam cylinder(s), ll cup, valves, and
hoses to prevent freeze up when the temperature inside the enclosure drops below 6 °C.
During warm weather, a weather-shielded exhaust fan moves air through the enclosure to maintain an
appropriate operating temperature. The exhaust fan is automatically controlled by a thermostat, and
cannot be activated manually.
The Condair EL/RS Outdoor Humidier is also equipped with a remote fault indication board (standard,
not shown) that can be used to remotely monitor the unit.
All other features of the Condair EL/RS Outdoor Humidier are similar to the Condair EL/RS humidier.
Refer to the respective Condair EL/RS humidier manuals for details.

11Product Overview
Condair EL/RS Outdoor 2584598-E EN 2209
1
2
3
8
9
10
13
16
11
4
15
7
14
12
-A-
A
5
6
7
7
EL-OC - Small
Fig. 2: Condair EL/RS Outdoor Humidier (medium size unit shown)
1 Side door
2 Controls cabinet
3 Touchscreen display
4 Intake shroud (and lter)
5 Mechanical freeze protection valve
(RS-OC with scale tank)
6 Steam cylinder (RS-OC)
7 Heater
8 On/Off switch
9 Front door
10 Mechanical freeze protection valve
(EL-OC and RS-OC without scale tank)
11 Steam cylinder (EL-OC)
12 Mounting bracket
13 Steam outlet
14 Exhaust shroud
15 Exhaust fan (and lter)
16 Plumbing cabinet

12 Product Overview 2584598-E EN 2209 Condair EL/RS Outdoor
4.2 Model Designation
The specication label on the side of the Condair EL/RS Outdoor Humidier shows its model number,
serial number, and ratings. Refer to Fig. 3. The breakdown of the model number is shown in Fig. 4.
Condair Group AG, Gwattstrasse 17, 8808 Pfäfkon SZ, Switzerland
Type: Condair RS-OC 80 L Serial-No.: XXXXXXX 03.17
Voltage: 400V 3~ / 50...60Hz El. Power: 60.0 kW / 86.6 A
Steam capacity: 80.0 kg/h El. Power Ctrl: 1.0 kW 4.2 A
Water press.: 100..1000 kPa (1..10 bar) Contr. volt.: AC 200-240V/50-60Hz
IP55 Steam Humidier
Engineered in Switzerland, Made in Germany
Fig. 3: Condair EL/RS Outdoor Steam Humidier Specication Label
Example:
Condair EL-OC 40 M
Product Series:
EL-OC = EL Outdoor Cabinet
RS-OC = RS Outdoor Cabinet
Steam Capacity (kg/h):
Housing size:
S: Small
M: Medium
L: Large
Fig. 4: Model number Breakdown
4.3 Models Overview
The Condair EL/RS Outdoor Humidier is available in different steam capacities with options, as shown
in Table 1 and Table 2 below. Refer to chapter 4.4 for descriptions of the options.

13Product Overview
Condair EL/RS Outdoor 2584598-E EN 2209
Table 1: Condair EL Outdoor Steam Humidier Models
Heating
Voltage
Steam
Capacity
Unit
Size
Voltage
Option
Condair EL Outdoor Options
V [kg/h] S/M/L
SV,
SV/DV,
DV **
Terminal Heating Voltage Internal Control Voltage Remote Fault Indication Mounting Bar Drain Water Cooler Cleanable Cylinder LonWorks BACnet IP BACnet MS/TP Accessory Board Disconnect Mounting Brackets Enclosure Lightning
THV CVI RFI MP DWC CL LON BN-IP BN-
MSTP
ACC DC ENL
200V/1~
5
S SV
standard standard standard standard
1x
CL
1x
LON
1x
BN-IP
1x BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
230V/1~ -
240V/1~
5
S SV 1x
THV-S
standard standard standard
1x
CL
1x
LON
1x
BN-IP
1x BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
10
230V/3~
5
S
SV
1x
THV-S
standard standard standard
1x
CL
1x
LON
1x
BN-IP
1x BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
10
15
20
M1x
THV-M
24
30
200V/3~
5
S
SV
standard standard standard standard
1x
CL
1x
LON
1x
BN-IP
1x BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
20
15
20
M24
30
400V/3~ - 415V/3~
5
S
SV/DV
1x
THV-S
1x
CVI-S
standard standard standard
1x
CL
1x
LON
1x
BN-IP
1x BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
10
15
20
M1x
THV-M
1x
CVI-M
24
30
35
40
45
50
L*
standard
2x
CL
60
70
80
90

14 Product Overview 2584598-E EN 2209 Condair EL/RS Outdoor
Heating
Voltage
Steam
Capacity
Unit
Size
Voltage
Option
Condair EL Outdoor Options
V [kg/h] S/M/L
SV,
SV/DV,
DV **
Terminal Heating Voltage Internal Control Voltage Remote Fault Indication Mounting Bar Drain Water Cooler Cleanable Cylinder LonWorks BACnet IP BACnet MS/TP Accessory Board Disconnect Mounting Brackets Enclosure Lightning
THV CVI RFI MP DWC CL LON BN-IP BN-
MSTP
ACC DC ENL
440 - 500V/3~
5
S
DV
1x
THV-S
standard standard standard
1x
CL
1x
LON
1x
BN-IP
1x BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
10
15
20
M1x
THV-M
24
30
35
40
45
600V/3~
5
S
DV
1x
THV-S
standard standard standard
1x
CL
1x
LON
1x
BN-IP
1x BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
10
15
20
M1x
THV-M
24
30
35
40
45
* These models have two steam cylinders.
** SV - Single Voltage (without Trafo/CVI)
SV/DV - Single Voltage (CVI) or Double Voltage
DV - Double Voltage Only

15Product Overview
Condair EL/RS Outdoor 2584598-E EN 2209
Table 2: Condair RS Outdoor Steam Humidier Models
Heating
Voltage
Steam
Capacity
Unit
Size
Voltage
Option
Condair RS Outdoor Options
V [kg/h]
S/M//L
SV,
SV/DV,
DV **
Terminal Heating Voltage Internal Control Voltage Remote Fault Indication Mounting Bar Full Drainage Drain Water Cooler Version for RO Water LonWorks BACnet IP BACnet MS/TP Accessory Board Disconnect Mounting Brackets Enclosure Lightning
THV CVI RFI MP SV DWC VE LON BN-IP BN-
MSTP
ACC DC ENL
230V/1~ 240V/1~
5
M SV 1x
THV-S
standard standard standard standard
1x
VE
1x
LON
1x
BN-IP
1x
BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
10
230V/3~
5
M SV
standard standard standard standard
1x
VE
1x
LON
1x
BN-IP
1x
BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
10
16
20
24
30
200V/3~
16
M SV
standard standard standard standard
1x
VE
1x
LON
1x
BN-IP
1x
BN-
MSTP
1x
ACC
1x
DC
1x
ENL
20
24
30
380V/~3, 400V/3~, 415V/3~
5
M
SV/DV
1x
THV-S
1x
CVI-S
standard standard
standard
standard
1x
VE
1x
LON
1x
BN-IP
1x
BN-
MSTP
1x
ACC
1x
DC
1x
ENL
8
10
16
20
24
1x
THV-M
1x
CVI-M
30
40
50
L*
standard standard
2x
VE
60
80
"440V, 460V,
480V,
500V/3~"
10
M DV
1x
THV-S
standard standard standard standard
1x
VE
1x
LON
1x
BN-IP
1x
BN-
MSTP
1x
ACC
1x
DC
1x
ENL
16
20
30 1x
THV-M
40
600V/3~
10
M DV
1x
THV-S
standard standard standard standard
1x
VE
1x
LON
1x
BN-IP
1x
BN-
MSTP
1x
ACC
1x
DC
1 x
ENL
16
20
30 1x
THV-M
40
* These models have two steam cylinders.
** SV - Single Voltage (without Trafo/CVI)
SV/DV - Single Voltage (CVI) or Double Voltage
DV - Double Voltage Only

16 Product Overview 2584598-E EN 2209 Condair EL/RS Outdoor
4.4 Options
Table 3 shows the list of options for the Condair EL/RS Outdoor Humidier. Contact your local Condair
representative for details.
Table 3: Condair EL/RS Outdoor Humidier Options
Option Application
Terminal set heating voltage (THV) Separate optional terminals for connecting supply heating voltage to the
unit where direct connection to the main contactor (standard version) is not
permitted by local regulations.
2x Terminal set heating voltage (THV-L) Optional terminal set for separate connection of the heating voltage to each
module of the large devices (only available for the large Condair EL-OC /
RS-OC devices)
Internal Control Voltage (CVI) Optional kit that supplies internal power for control signal voltage (not avail-
able for large Condair EL-OC / RS-OC devices).
Remote Fault Indication (RFI) Printed circuit board with relay contacts to indicate operating status of humidi-
er. Board supplied standard on outdoor units.
Mounting bracket (MP) Mounting brackets to permit installation of the unit on an air handling unit or
an exterior wall. Brackets supplied standard.
Full Drainage (SV) Drain valve kit for automatically emptying the RS-OC scale tank.
Drain Water Cooling (DWC) Kit for cooling drain water to less than 60 °C before it is discharged into the
drain. Kit supplied standard in all units in Europe.
Cleanable Cylinder (CL) Option to install a cleanable cylinder in the EL-OC unit.
BACnet IP (BTL-certied board) Optional board to provide BTL-certied BACnet IP connectivity to the building
management system (BMS).
BACnet MS/TP (BTL-certied board) Optional board to provide BTL-certied BACnet MS/TP connectivity to the
BMS. This option also enables full Master functionality when using BACnet
MS/TP.
LonWorks board (LON) Optional board to provide LonWorks connectivity to the BMS.
Accessory board (ACC) Optional printed circuit board with relay contacts for connecting other acces-
sories such as fans and supply water ushing valves.
Disconnect Mounting Bracket (DC) Optional mounting bracket for installing disconnect switches on the back of a
unit that is secured to the mounting rack accessory (Table 4).
Enclosure Lighting (ENL) Optional lighting for the inside of the humidier enclosure with integrated GFI
socket.
4.5 Accessories
Table 4 shows the list of accessories for the Condair EL/RS Outdoor Humidier. Contact your local Condair
representative for details. To install and operate the accessories, please refer to the instructions supplied
with the accessories.
Table 4: Condair EL/RS Outdoor Humidier Accessories
Accessory Application
Mounting Rack Frame to permit free-standing installation of the unit.
Water inlet lter (Z261) In-line water lter (5μm) and shutoff valve.

17Installation
Condair EL/RS Outdoor 2584598-E EN 2209
5 Installation
5.1 General
Strictly observe and perform all installation tasks including the mounting of the unit and connection of
the water, steam and power supplies as described in this manual.
Comply with all local and national codes dealing with water, steam and electrical installations.
Condair does not accept any liability for installation of humidication equipment by unqualied personnel,
or the use of equipment/parts that are not authorized by Condair.
PersonnelQualications
All installation work must be performed only by licensed personnel authorized by the customer. It is the
customer’s responsibility to verify qualications of the personnel.
Safety
Observe all safety precautions noted in chapter 2.
5.2 Installation Overview
The Condair EL/RS Outdoor humidier can be installed in three different ways:
– mounted directly on a suitably reinforced vertical surface on the air handling unit (AHU), see Fig. 5
in chapter 5.2.2.
– mounted on a mounting rack, see Fig. 6 in chapter 5.2.2
– mounted on a suitable vertical surface on an exterior wall, see Fig. 7 in chapter 5.2.3.

18 Installation 2584598-E EN 2209 Condair EL/RS Outdoor
5.2.1 Installation Overview Mounting on Air Handling Unit
1
2
3
4
5
6
10
8
7
min. 380 mm
14
13
9
11
12
15
Fig. 5: Typical Installation on Air Handling Unit (medium size unit shown)
Legend:
1 Air handling unit
2 Steam outlet, connection into distributor system inside
air handling unit.
3 External fused disconnect switch (2x, supplied by others)
4 Pipe chase (drain lines). See Note 1.
5 Drain line (freeze protection valve), 9.5 mm I.D. See Note 2.
6 Drain line (main) – 30 mm I.D. See Note 2.
7 Air gap funnel (supplied by others). See Note 3.
8 Water inlet lter accessory Z261 (supplied by others)
9 Shutoff valve (supplied by others)
10 Union tting (supplied by others)
11 Pipe chase (water supply line). See note 1.
12 Water supply line (supplied by others), minimum inner
diameter 12 mm. See Note 4.
13 Mounting bar (supplied – 2x for small unit, 3x for medium/
large unit) secured to air handling unit. See Note 5.
14 Mounting bracket (2x for small unit, 3x for medium/large
unit) secured to back of humidier
15 Pressure shock absorber (recommended, supplied by
others)

19Installation
Condair EL/RS Outdoor 2584598-E EN 2209
Installation notes
Note 1: Route all drain lines through a pipe chase (recommended). Seal the pipe chase to prevent
rising steam from entering the bottom of the humidier enclosure, and to isolate the unit from
the pressure inside the building. Pipe chases are supplied by others.
Note 2: In cold climates all drain lines must be properly trace heated and insulated to prevent freezing.
Note 3: The air gap funnel should be located inside the building (recommended), as shown in Fig. 5,
and connected to a dedicated building drain (recommended) with a drainage capacity of at
least 30 l/min for an EL-OC unit and an RS-OC unit – per steam cylinder. The drain line exiting
the funnel should have a minimum inner diameter of 40 mm. The drain lines into the funnel
must not touch the sides or bottom of the funnel. In large units, separate air gap funnels must
be used for drain lines from each cylinder.
Note 4: The water supply line is connected to the device with a hose or tube with a G3/4" female thread.
It is recommended to route the line through a pipe chase. In cold climates it must be properly
trace heated and insulated to prevent freezing. To avoid pressure bumps, we recommend
installing a pressure shock absorber in the water supply line.
Note 5: The supplied mounting bars must be installed on a reasonably at vertical mounting surface
on the air handling unit. The mounting surface must be stable and suitably reinforced (strength
equivalent to 50x100 mm timber stud or 41×41×2.7 mm Unistrut® channel) to support the unit
and reduce vibrations. Ensure that the mounting surface is capable of supporting the entire
weight of the unit when it is in operation. Refer to Table 8 for weight of the unit.
This mounting arrangement is advantageous because the steam piping is shorter, thus minimizing
condensate losses and backpressure in the line. Do not install the Condair EL/RS Outdoor Humidier
in an environment where the unit is exposed to severe weather, or where the temperature drops below
-20 °C. Bracing (supplied by others) will be required for units exposed to strong winds.
Refer to chapter 5.3, and chapter 5.4.3 for mounting details. Ensure the required clearance is maintained,
refer to Fig. 8. Observe all local and national installation codes. Condair is not responsible for any instal-
lation code violations.
The water supply and all drain lines must be properly trace heated and insulated to prevent freezing.

20 Installation 2584598-E EN 2209 Condair EL/RS Outdoor
5.2.2 Installation Overview Mounting on Mounting Rack
Fig. 6:
4
5
6
10
8
7
13
11
12
9
14
1
2
3
Typical Installation on Mounting Rack (medium size unit shown)
1 External fused disconnect switch (2x, supplied by others)
2 Disconnect mounting bracket (option: DC)
3 Mounting rack (MR) accessory. See Note 1 and 7.
4 Pipe chase (drain lines). See Note 2.
5 Drain line (freeze protection valve), 9.5 mm I.D. See Note 3.
6 Drain line (main) – 30 mm I.D. See Note 3.
7 Air gap funnel (supplied by others). See Note 4.
8 Water inlet lter accessory Z261 (supplied by others)
9 Shutoff valve (supplied by others)
10 Union tting (supplied by others)
11 Pipe chase (water supply line)
12 Water supply line (supplied by others), minimum inner
diameter 12 mm. See Note 5.
13 Steam line, must maintain a constant minimum upslope/
downslope of 15% (8.5°), and must be insulated
14 Pressure shock absorber (recommended, supplied by
others)