Condair 2582302-D EL Series Installation guide

Condair 2582302-D EL Series Installation guide
2582302_D_EN_1812_Nortec-EL_IM
IMPORTANT! Read and save these instructions. This manual to be left with the equipment.
NORTEC
INSTALLATION MANUAL
Electrode Steam Humidifier
Nortec EL-Series
Humidification and Evaporative Cooling
Thank you for choosing Condair
Installation date (DD/MM/YYYY):
Commissioning date (DD/MM/YYYY):
Site:
Model:
Serial number:
Proprietary Notice
This document and the information disclosed herein are proprietary data of Condair Ltd. Neither this document, nor
the information contained herein shall be reproduced, used, or disclosed to others without the written authorization
of Condair Ltd., except to the extent required for installation, operation or maintenance of the customer's equipment.
Liability Notice
Condair Ltd. does not accept any liability due to incorrect installation, maintenance or operation of the equipment,
or due to the use of parts/components/equipment that are not authorized by Condair Ltd.
Copyright Notice
Copyright 2018, Condair Ltd, All rights reserved.
Technical modification rights reserved.
Contents
1
1.1
1.2
Introduction
Before You Start!
General
5
5
5
2
For Your Safety
7
3
3.1
3.2
Receiving and Storage
Inspection
Storage and Transportation
9
9
9
4
4.1
4.2
4.3
4.4
4.5
Product Overview
General Description
Models Overview
Model Designation
Options
Accessories
11
11
12
12
13
14
5
5.1
5.2
5.2.1
5.2.2
5.3
5.4
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.5
5.5.1
5.5.2
5.5.2.1
5.5.2.2
5.5.3
5.5.3.1
5.5.4
5.6
5.6.1
5.6.2
5.6.3
5.7
5.7.1
5.7.2
Installation
General
Installation Overview
Typical Installation for Duct Humidification
Typical Installation for Direct Room Humidification
Site Requirements
Mounting the Humidifier
Location and Clearances
Standard Mounting
Mounting Using Optional Mounting Bar
Mounting to OSHPD Seismic Requirements
Mounting Checklist
Steam Line Connections
Steam Distribution Using the Air Handling Unit
Steam Distribution Using the Blower Pack
Placement of Humidifier
Remote-Mounted Blower Pack
Best Practices for Installing Steam and Condensate Lines
Common Steam and Condensate Line Installation Mistakes
Steam Connections Checklist
Water Connections
Water Connections Overview
Water Connection Requirements
Water Connections Checklist
Humidity Control Systems
Control Device Locations
Permissible Control Signal Inputs
15
15
16
16
18
19
20
20
22
24
26
28
28
28
28
28
29
30
38
39
40
40
42
42
43
43
43
Nortec EL
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Contents
3
4
5.8
Electrical Connections
5.8.1
General
5.8.2
Wiring Diagrams
5.8.2.1
Nortec EL Steam Humidifier, Steam Cylinder A
5.8.2.2
Nortec EL Steam Humidifier, Steam Cylinder B (Large Units Only)
5.8.3
External Connections
5.8.3.1
3-Phase Power Supply Connection
5.8.3.2
Single-Phase Power Supply Connection
5.8.3.3
External Safety Chain
5.8.3.4
Modulating Demand or Humidity Signal
5.8.3.5
Ohmic Humidity Controller (Passive)
5.8.3.6
24V On/Off Humidistat
5.8.3.7
External On/Off Input
5.8.3.8
Dual Steam Cylinders Control Wiring
5.8.3.9
Remote Relay PCB Connections
5.8.3.10
Accessory Relay PCB Connections
5.8.3.11
Modbus Connection
5.8.4
Connecting Multiple Units Using Linkup
5.8.5
Maximum External Fuse
5.8.6
Electrical Connections Checklist
44
44
45
45
47
48
48
49
50
51
52
53
53
54
55
56
57
58
59
61
6
6.1
6.2
Product Specifications
Weights
Dimensions
63
63
64
A
A.1
Appendix
Installation Checklist
69
69
B
B.1
B.1.1
B.1.2
Appendix
Commissioning Checklist
Pre-Start-Up Checklist
Performance Checklist
71
71
71
74
Contents
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
1
Introduction
1.1
Before You Start!
Thank you for purchasing the Nortec EL steam humidifier.
The Nortec EL steam humidifier incorporates the latest technical advances and meets all recognized
safety standards. Never-the-less, improper use of the Nortec EL steam humidifier may result in danger
to the user or third parties, and/or damage to property.
To ensure safe, proper and economical operation of the Nortec EL steam humidifier, observe and comply
with all information and safety instructions contained in this manual, as well as all relevant documentation of components of the installed humidification system.
If you have additional questions, contact your local Condair representative. They will be glad to assist you.
1.2
General
Limitations
The subject of this manual is the Nortec EL steam humidifier. The various options and accessories
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 restricted to the installation of the Nortec EL steam humidifier, and is intended for well
trained personnel who are suitably qualified for their respective tasks.
Symbols Used in This Manual
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 specific 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 specific
danger symbols may also be used in place of the general symbol.
Nortec EL
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Introduction
5
Other Related Publications
This installation manual is supplemented by other publications such as the operation and maintenance
manual, spare parts list, etc., which are included in the delivery of the equipment. Where necessary,
appropriate cross-references to these publications have been added in this manual.
Storage of Manual
Keep this manual in a place where it is safe and readily accessible. If the equipment is moved to another
location, make sure that the manual is passed on to the new user.
If the manual is lost or misplaced, contact your local Condair representative for a replacement copy.
.
6
Introduction
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Nortec EL
2
For Your Safety
General
Every person who is tasked with the installation of the Nortec EL steam humidifier must read and understand this manual before performing any work. Knowing and understanding the contents of the installation manual and the operation and maintenance manual 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 Nortec EL steam humidifier must be observed and kept in
a readable state.
Personnel Qualifications
All procedures described in this manual must only be performed by personnel who are adequately qualified, 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 qualified personnel authorized by Condair.
All personnel working with the Nortec EL steam humidifier must be familiar with, and comply with the
appropriate regulations on workplace safety and prevention of accidents.
Intended Use
The Nortec EL steam humidifier is intended exclusively for air humidification using a Condair-approved
steam distributor or blower pack within specified operating conditions (refer to the Operation and
Maintenance Manual 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.
Dangers that may arise from the Nortec EL steam humidifier:
DANGER!
Risk of electric shock!
The Nortec EL steam humidifier is mains powered. Live parts may be exposed when the door
panels are removed. Touching live parts may cause severe injury or even death.
Prevention: The Nortec EL steam humidifier must be connected to the mains only after all installation work has been completed, checked for correct workmanship, and the door panels are installed
and fastened securely.
WARNING!
Risk of severe burns from exposure to hot steam vapors!
The Nortec EL steam humidifier uses hot steam vapors for humidification. Bare skin exposed to hot
steam vapors can result in severe burns.
Prevention: Avoid contact with hot steam. Or, wear appropriate personal protective equipment
when working near steam vapors.
Nortec EL
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For Your Safety
7
Preventing Unsafe Operation
All personnel working with the Nortec EL steam humidifier must immediately report to the customer any
alterations to the unit that may affect safety, and secure the humidifier against accidental power-up.
Modifications to the Unit Prohibited
Modifications are not permitted on the Nortec EL steam humidifier without the express written consent
of Condair.
8
For Your Safety
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Nortec EL
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 on the rating label to ensure that it is suitable for your installation. Refer to
Figure 3 on page 13.
3.2
Storage and Transportation
Storage
Store the Nortec EL steam humidifier 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: 41 to 104 °F (5 to 40 °C)
–– Room humidity: 10 to 75% RH
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 packaging where possible.
Nortec EL
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Receiving and Storage
9
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10
Receiving and Storage
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Nortec EL
4
Product Overview
4.1
General Description
The Nortec EL steam humidifier is an advanced electrode steam humidifier with state-of-the-art features.
It has an integrated controller which not only controls the humidifier, but also allows the humidifier to be
connected to a building automation system, or an off-line computer, so it can be controlled and monitored remotely.
The Nortec EL steam humidifier comes in three different housing sizes depending on the steam capacity. Refer to Figure 1. These units can range from 5 lb/h (2.2 kg/h) to 200 lb/h (91 kg/h) – refer to "Models
Overview" on page 12. Models with steam capacity up to 100 lb/h (45 kg/h) can also be ordered with a
built-on blower pack. The large models, with steam capacity from 150 lb/h (68 kg/h) to 200 lb/h (91 kg/h),
are equipped with dual steam cylinders – each with its own dedicated driver board.
The dedicated driver boards in the large models allow the steam cylinders to be configured to operate in
series, in parallel or independent mode. Two separate sets of control signals are needed for independent mode of operation. In series mode, the output capacity of steam cylinder "A" is configured to 0-50%
of humidifier demand, and steam cylinder "B" to 50-100% of humidifier demand. In parallel mode, the
output capacity of each steam cylinder is configured to 0-100% of humidifier demand.
In addition, up to six integrated controllers (for a maximum of 12 steam cylinders) can be set up in a
"main-extension" configuration using the Linkup system to satisfy large humidification needs.
3
2
4
1
Figure 1: Nortec EL Steam Humidifier Model Sizes
1
2
3
4
Nortec EL
Small model, steam cylinder "A" only
Medium model, steam cylinder "A" only
Large model, steam cylinder "B"
Large model, steam cylinder "A"
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Product Overview
11
4.2
Models Overview
The Nortec EL steam humidifier is available in different sizes (S, M and L) with different heating voltages
and steam capacities as shown in Table 1 below.
Table 1: Nortec EL Steam Humidifier Models
110120V/1~
208V/1~
220240V/1~
277V/1~
380415V/1~
440480V/1~
550600V/1~
208V/3~
220240V/3~
380V/3~
440480V/3~
550600V/3~
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
lb/h
(kg/h)
005
5
(2.2)
–
–
–
–
–
–
–
–
–
–
–
010
–
10
(4.5)
10
(4.5)
10
(4.5)
10
(4.5)
10
(4.5)
10
(4.5)
–
–
–
–
–
020
–
20
(9)
20
(9)
20
(9)
20
(9)
20
(9)
20
(9)
20
(9)
20
(9)
20
(9)
20
(9)
20
(9)
030
–
–
–
–
–
–
30
(13.6)
30
(13.6)
30
(13.6)
30
(13.6)
30
(13.6)
050
–
–
–
–
–
–
50
(22.7)
50
(22.7)
50
(22.7)
50
(22.7)
50
(22.7)
075
–
–
–
–
–
–
75
(34)
75
(34)
75
(34)
75
(34)
75
(34)
100
–
–
–
–
–
–
90
(41)
100
(45)
100
(45)
100
(45)
100
(45)
150*
–
–
–
–
–
–
150
(68)
150
(68)
150
(68)
150
(68)
150
(68)
200*
–
–
–
–
–
–
180
(82)
200
(91)
200
(91)
200
(91)
200
(91)
Housing
Size
Nortec EL
Model
S
M
L
* These models have two steam cylinders.
4.3
Model Designation
The specification label on the side (and the underside) of the Nortec EL steam humidifier shows its model
number, serial number and ratings – refer to Figure 3 on page 13. The breakdown of the model number
is shown in Figure 2. For other details of the specification label refer to the Operation and Maintenance
Manual.
Nortec EL Space 100 480V/3~
Product series:
Model:
Blank = Duct
Space = with Blower Pack
RM
= with power for remote-mounted Blower Pack
Steam capacity (lb/h):
Heating voltage and phase:
Figure 2: Model Breakdown
12
Product Overview
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
LISTED
+80,',),(5
;
MODEL: XXXXXXXXXXXXXXXXXXXXXXXX
S/N: XXXXXXX
VOL TS: XXXXXXXXXXXX PHASE:
AMPS: XXXXX
XXXXXXXXX
KW :
HZ:
MAX:
XXX AMPS
Circuit Protection
XXXX
XXXXXX
DATE: XXXXXXXXX
MADE IN CANADA
XXXXXXXX B
Figure 3: Nortec EL Steam Humidifier Specification Label
4.4
Options
Table 2 shows the list of options for the Nortec EL steam humidifier. Contact your Condair representative
for details.
Table 2: Nortec EL Options
Option
Nortec EL
Application
Mounting bar
Provides two mounting bars which fit into each other for wall mounting. One bar is fastened
to the humidifier, the other bar is fastened to the wall. The unit can be hung onto the wall by
engaging the two mounting bars. Note: The unit can also be wall mounted (without this option) using the keyhole cutouts on the back of the humidifier housing.
Mounting rack
Stand-alone rack for mounting the Nortec EL steam humidifier.
Remote fault indication PCB
(printed circuit board)
Printed circuit board with relay contacts for connecting remote status displays for “Unit On”,
“Steam”, “Error” and “Service”.
Accessory relay PCB
(printed circuit board)
Printed circuit board with relay contacts for connecting other accessories such as fans and
supply water flushing valves.
Internal primary fusing
Optional internal fuse for heating voltage power supply. Only available as a factory-installed
option. Note: This is not a substitute for a dedicated external disconnect switch.
Fill cup extension
Kit for extending the fill cup so the humidifier can accommodate backpressure of up to
10 in H20 (2.49 kPa).
Extreme drain water cooling
Kit for cooling drain water to less than 120°F (49°C) before it is discharged into the drain.
Foam detection kit
Kit for extending the ability of the humidifier to handle a wider range of water supply quality.
BACnet MSTP BTL
PCB to provide BTL certified BACnet MSTP. This option also enables full Master functionality
when using BACnet MSTP.
BACnet IP BTL
PCB to provide BTL certified BACnet IP.
LonWorks board
Supplementary board to connect the Nortec EL to a building management system using
LonWorks.
Remote blower pack power
kit
When a remote blower pack is being installed with the humidifier, this option provides a
transformer, fusing, and a terminal block inside the humidifier to provide power to the remote
blower pack. Without this option, a separate 110-120V supply must be provided for the
remote blower pack.
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Product Overview
13
4.5
Accessories
Table 3 shows the list of accessories for the Nortec EL steam humidifier. Contact your Condair representative
for details. To install and operate the accessories, refer to the instructions supplied with the accessories.
Table 3: Nortec EL Accessories
Accessory
14
Application
Steam distributor
Steam distribution system for use in an air duct.
SAM-e steam distribution
manifold
Steam distribution system for use in an air duct where reduced absorption distance is required.
Blower pack, built-on or
remote
For direct room humidification or use in conditioned spaces without a built-in air distribution
system. The Nortec EL Space model has a blower pack mounted directly, the EL RM model
has power for a remote-mounted blower pack (blower pack ordered as an accessory).
Digital or analog control
humidistat with either On/Off
or modulating operation
Input device used to meter the output of the humidifier based on the sensed relative humidity.
The humidistat can be installed in the conditioned space that is being humidified, or within
the duct.
Digital RH transducer
Input device used to communicate the relative humidity in a conditioned space or a duct to
the humidifier.
Digital or analog high limit
humidistat with either On/Off
or modulating operation
Input device used to limit the output of the humidifier by either shutting it down or throttling it
down when the humidity in the duct approaches the high limit.
Air proving switch
Input device to ensure that humidification only occurs when air is moving through the duct.
Outdoor temperature sensor
Input device used to communicate the outdoor temperature to the humidistat so that it can
lower the setpoint value during cold weather to prevent condensation on exterior windows/
surfaces.
Product Overview
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Nortec EL
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.
Observe and comply with all local and national codes dealing with water, steam and electrical installations.
Condair does not accept any liability for installation of humidification equipment by unqualified personnel,
or the use of equipment/parts that are not authorized by Condair.
Personnel Qualifications
All installation work must be performed only by licensed personnel authorized by the customer. It is the
customer’s responsibility to verify qualifications of the personnel.
Safety
Observe the following safety precautions:
DANGER!
Risk of electric shock!
The humidifier is mains powered. Live parts may be exposed when the door panels are open.
Touching live parts may cause severe injury or even death.
Prevention: The humidifier 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.
CAUTION!
Risk of damage to internal components from electrostatic discharge (ESD)!
The electronic components inside the humidifier 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 ANSI/ESD-S20.20.
Nortec EL
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Installation
15
5.2
Installation Overview
The Nortec EL humidifier can use a steam distributor to distribute steam through air ducts – refer to
Figure 4. The humidifier can also use a blower pack to distribute steam directly into a conditioned space
– refer to Figure 5 on page 18.
5.2.1
Typical Installation for Duct Humidification
2, 3
ft
. 10
)
(3m
min
)
-3m
in.
13
Bn
or m
0
8-1
.4
ft (2
1, 2
4
12
10
11
9
5
6
8
7
Figure 4: Typical Installation for Duct Humidification
16
Installation
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Nortec EL
Legend:
1 High limit On/Off humidistat (external safety chain)
2 Humidity sensor or modulating humidistat (used for control of space in return duct, or high limit in supply duct)
3 On/Off humidistat (used for humidity control)
4 Steam line (see Note 1 below)
5 Electrical disconnect, high voltage supply
6 Drain line (see Note 2 below)
7 Air gap with optional trap (see Note 3 below)
8 Water supply (see Note 4 below)
9 Condensate line (see Note 5 below)
10 Steam distributor (see Note 6 below)
11 Air proving switch (external safety chain)
12 Supply air duct
13 Return air duct
Note 1: The steam line should be as short as possible – the maximum length varies depending on unit
capacity and material used (refer to Table 6 on page 32). The steam line should have adequate upslope
(minimum 10°) /downslope (minimum 2°), without restrictions and with a condensate trap at the lowest
point. Steam traps are required every 15 ft (5 m) for long runs. The steam line must rise a minimum of
12 in (30 cm) straight up before running to the steam distributor. The minimum bend radius for steam
hose is 12 in (30 cm), or 5× the internal diameter for rigid pipes. Refer to Table 6 on page 32 for steam
line recommendations.
Note 2: The drain line should have a minimum internal diameter of 7/8 in (22 mm), with a constant
minimum downslope of 1 in/48 in (1.2°) to the funnel, and must not touch the sides or bottom of funnel.
Note 3: The air gap and trap should be located to the left of the humidifier, as shown. A 2-1/2 in to 7/8 in
(63.5 mm to 22 mm) reducer is ideal (option P/N 2522172). The hose must not touch the bottom of the
funnel.
Note 4: Water supply should be potable drinking water, with conductivity of 150-1200 micro-siemens/
cm (0-12 gpg). The water supply line should have a minimum diameter of 1/2 in (13 mm) with a shutoff
valve. An optional 5 μm filter is also recommended. Water temperature should be 34-104°F (1-40°C).
Pressure should be surge-free and regulated to 30-80 psig (207-550 kPa).
Note 5: Condensate drain line from the steam distributor should have a constant minimum downslope
of 1 in/48 in (1.2°), with no restrictions and a minimum trap height of 8 in (200 mm). The trap should be
located a minimum of 12 in (30 cm) below the steam distributor.
Note 6: The distance from the steam distributor to any obstruction or transition in the duct should be
equal to the calculated absorption distance Bn or a minimum of 8-10 ft (2.4-3 m) if Bn is not known. For
details refer to the installation manual for the relevant steam distribution system. The absorption distance
can be obtained using Condair HELP. The steam distributor capacity must equal or exceed the maximum
capacity of the humidifier.
Nortec EL
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Installation
17
5.2.2
Typical Installation for Direct Room Humidification
1
2
12
3
11
5, 6
4
7
10
8
9
Figure 5: Typical Installation for Direct Room Humidification
1
2
3
4
5
6
7
8
9
10
11
12
Blower pack, remote-mounted
Steam line (see Note 1 below)
Blower pack, built-on
High level On/Off humidistat (external safety chain)
Humidity sensor or humidistat (used for control of space humidity or high limit)
On/Off humidity control
Electrical disconnect, high voltage supply
Drain line (see Note 2 below)
Air gap with optional trap (see Note 3 below)
Water supply (see Note 4 below)
Condensate drain line (routed to floor drain, see Note 5 below)
Condensate drain connection through fill cup to steam cylinder (for remote blower pack)
Note 1: The steam line should be as short as possible – the maximum length varies depending on unit
capacity and material used (refer to Table 6 on page 32). The steam line should have adequate upslope
(minimum 10°) /downslope (minimum 2°), without restrictions and with a condensate trap at the lowest
point. Steam traps are required every 15 ft (5 m) for long runs. The steam line must rise a minimum of
12 in (30 cm) straight up before running to the steam distributor. The minimum bend radius for steam
hose is 12 in (30 cm), or 5× the internal diameter for rigid pipes. Refer to Table 6 on page 32 for steam
line recommendations.
18
Installation
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Nortec EL
Note 2: The drain line should have a minimum internal diameter of 7/8 in (22 mm), with a constant minimum downslope of 1 in/48 in (1.2°) to the funnel, and must not touch the side or bottom of the funnel.
Note 3: The air gap and trap should be located to the left of the humidifier, as shown. A 2-1/2 in to 7/8 in
(63.5 mm to 22 mm) reducer is ideal (option P/N 2522172). The hose must not touch the bottom of the
funnel.
Note 4: Water supply should be potable drinking water, with conductivity of 150-1200 micro-siemens/
cm (0-12 gpg). The water supply line should have a minimum diameter of 1/2 in (13 mm) with a shutoff
valve. An optional 5 μm filter is also recommended. Water temperature should be 34-104°F (1-40°C).
Pressure should be surge-free and regulated to 30-80 psig (207-550 kPa).
Note 5: For remote-mounted blower pack, the condensate line can be routed to either an external drain
or to the fill cup of the humidifier. The condensate drain line from the blower pack should have a constant
minimum downslope of 1 in/48 in (1.2°), with no restrictions and a minimum trap height of 4 in (100 mm).
The trap should be located a minimum of 12 in (300 mm) below the condensate port on the blower pack.
5.3
Site Requirements
In preparation for installation of the Nortec EL steam humidifier, make sure that the following site requirements are satisfied. Report any discrepancies to the site engineer.
Steam and Condensate Lines:
When choosing the location of the humidifier, install it as close as possible to the steam distributor
to minimize heat loss through the steam line.
When possible, install the humidifier below the steam distributor. Make sure that the selected location permits proper routing of steam and condensate lines as described in "Best Practices for Installing
Steam and Condensate Lines" on page 30.
Mounting
Allow adequate clearances around the humidifier for ease of maintenance. Although the
Nortec EL steam humidifier requires no side clearance, Condair recommends minimum clearances
of 6 in (150 mm) on the side. A 24 in (610 mm) clearance between the humidifier and the ground is
required. Observe all local and national installation codes. Condair is not responsible for any installation code violations.
Do not mount the humidifier on hot surfaces, or surfaces that can freeze, or near vibrating components, or on the floor. In addition, the mounting surface must be able to withstand temperatures of
140-158°F (60-70°C) that can be generated during operation of the humidifier.
The humidifier should be mounted on a wall or other suitable surface that offers a sufficiently high
load-bearing capacity. Refer to Table 15 on page 63 for operating weights.
The Nortec EL steam humidifier should be installed in a drip-proof location within buildings, where
the ambient temperature is 41-104°F (5-40°C) and the relative humidity is 5-95% (non-condensing).
Water Supply
The water supply to the humidifier must be cold potable drinking water, and not reverse osmosis
(RO) or deionized (DI) water. The water quality requirements are listed in Table 4 below.
Table 4: Water Quality Requirements
Conductivity
(μS/cm)
Hardness
(gpg)
Silica
(ppm)
Alkalinity
(pH)
150-1200*
0-12
0-4
7-7.5
0-3
4-14
* Default humidifier configuration supports approximately 330-670 μS/cm.
The water supply should have a minimum flow rate of 0.9 gpm (3.3 L/min), and should be pressure
regulated to 30-80 psig (207-550 kPa), with spike pressure limited to 120 psig (827 kPa).
The water supply should be filtered to 5 μm (optional, but recommended).
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19
Water temperature should be 34-104°F (1-40°C).
The diameter of the water supply piping should be minimum 1/2 in (13 mm), and must have a 1/2 in
NPT female end.
The water supply line should be made of copper, stainless steel or plastic certified for drinking water
systems.
A shutoff valve and a union fitting must be supplied in the water supply line for ease of maintenance.
The water supply should be free of additives such as corrosion inhibitors, disinfectants, etc., which
may affect the performance of the humidifier. If using softened or partially softened water, contact
your Condair representative for assistance.
Drainage
The humidifier should be connected to a dedicated building drain (recommended) with a minimum
drainage rate of 2.3 gal/min (8.7 L/min) per steam cylinder. For safety reasons, drain water from the
humidifier should not empty into a sink used by personnel. The drain line must allow free and easy
draining. A restricted drain can cause water in the humidifier to over-concentrate and result in poor
operation, or cause water to back up at the air gap funnel.
The building drain pipe should be made of either copper or stainless steel (minimum DIN 1.4301)
so it can handle drain water temperatures up to 212 °F (100 °C).
The space in which the humidifier is to be installed should have a floor drain. However, if a floor drain
is not available, a leakage monitoring device must be installed (by others) to permit interruption of
the water supply in case of a leakage.
Power Supply
The power supply to the humidifier should be adequate to match the full voltage and current draw
shown on the specification label of the humidifier.
The power supply must have an external dedicated fused disconnect switch. The fusing must not
exceed the maximum circuit protection indicated on the specification label. Refer to Figure 3 on page 13.
5.4
Mounting the Humidifier
Refer to "Site Requirements" on page 19 for the location and mounting requirements for the
Nortec EL steam humidifier.
5.4.1
Location and Clearances
The location of the humidifier depends largely on the steam distribution system. For the required minimum
clearances for a Nortec EL steam humidifier with a built-on blower pack refer to "Placement of Humidifier" on
page 28; or refer to the blower pack manual for a remote-mounted blower pack.
For all other steam distribution systems refer to Figure 6. The clearance dimensions shown are for reference only, and are suggested clearances for ease of maintenance. Consult local and national installation
codes. Condair does not accept responsibility for violations of the installation codes.
20
Installation
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Nortec EL
min. 12 in
(300 mm)
0 in m)
(0 m
D
0 in m)
(0 m
min
(91 . 36 i
5m n
m)
W
min. 24 in
(610 mm)
H
Figure 6: Nortec EL Humidifier Suggested Clearances
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5.4.2
Standard Mounting
Locate the Nortec EL humidifier according to "Location and Clearances" on page 20, and install it on the
mounting surface as follows:
1. Locate 2×4 wooden studs or equivalent support in the mounting surface, and mark the attachment
points “A” and “B” at the desired position with the help of a level. For small or medium housing refer
to Figure 7. For large housing refer to Figure 8 on page 23.
Dimension
X
A
A
Y
Housing Size
Small
Medium
X
12.0 in
(305 mm)
16.0 in
(406 mm)
Y
17.56 in
(446 mm)
20.71 in
(526 mm)
B
B
1
Figure 7: Standard Mounting, Small or Medium Housing
1
22
Installation
Lag bolt, 1/4×2 in (×4)
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
Dimension
X
Large
X
16.0 in
(406 mm)
Y
16.75 in
(426 mm)
A
X
Housing Size
A
A
B
B
Y
B
1
Figure 8: Standard Mounting, Large Housing
1
Lag bolt, 1/4×2 in (×6)
2. Install 1/4×2 in lag bolts (supplied by others) at attachment points "A". Use longer screws if going
through drywall or other structural material into the mounting surface. Allow the heads of the screws to
extend 0.25 in (5 mm) from the mounting surface so that the humidifier can be installed on the bolts.
3. Remove the door panels from the humidifier.
WARNING!
Heavy object – risk of injury!
The small humidifier weighs 45 lb (20 kg), and the large humidifier weights 120 lb (54 kg).
Prevention: Use an appropriate lifting device, or request assistance to raise the humidifier into
position.
4. Carefully raise and install the humidifier onto the installed lag bolts.
5. Align the humidifier with the help of a level, then tighten the lag bolts.
6. Install additional lag bolts (supplied by others) into the mounting surface at attachment points “B”,
and fasten securely.
7. Reinstall the door panels, and fasten them securely.
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23
5.4.3
Mounting Using Optional Mounting Bar
Locate the Nortec EL humidifier according to "Location and Clearances" on page 20, and install it on the
mounting surface as follows using the optional mounting bar. Mounting bars are a factory-installed option.
If ordered, the corresponding bars and bumpers will be riveted/installed to the housing at the factory.
1. Locate 2×4 wooden studs or equivalent support in the mounting surface, and mark the attachment
points “A” at the desired position with the help of a level. For small or medium housing refer to Figure 9.
For large housing refer to Figure 10 on page 25.
Dimension
X
X
1
X
Housing Size
Small
Medium
6.0 in
(152 mm)
8.0 in
(203 mm)
2
A
3
A
A
4
Figure 9: Optional Mounting, Small or Medium Housing
1
2
3
4
24
Installation
Mounting bar
Flat washer (×3)
Lag bolt, 1/4×2 in (×3)
Screw, M6×10 (×1), supplied
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Nortec EL
Dimension
X
1
Housing Size
Large
16.0 in
(406 mm)
X
A
2
3
X
A
A
4
Figure 10: Optional Mounting, Large Housing
1
2
3
4
Mounting bar
Flat washer (×3)
Lag bolt, 1/4×2 in (×3)
Screw, M6×10 (×1), supplied
2. Align the holes in the mounting bar with the marks for the attachment points "A", and install the
mounting bar on the mounting surface with 1/4×2 in lag bolts and flat washers (supplied by others).
Use longer bolts if going through drywall or other structural material into the mounting surface. Level
the mounting bar before tightening the lag bolts.
3. Remove the door panels from the humidifier.
WARNING!
Heavy object – risk of injury!
The small humidifier weighs 45 lb (20 kg), and the large humidifier weights 120 lb (54 kg).
Prevention: Use an appropriate lifting device, or request assistance to raise the humidifier into
position.
4. Carefully raise the humidifier into position, and hang it on the mounting bar.
5. Secure the humidifier to the mounting bar with the M6×10 screw (supplied), and fasten securely.
6. Reinstall the door panels, and fasten them securely.
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25
5.4.4
Mounting to OSHPD Seismic Requirements
The Nortec EL is certified to OSHPD seismic requirements in its standard configuration (reference OSP0225-10); no additional kits are required. The humidifier must be mounted as per the instructions in this
section in order to fulfill the seismic requirements.
Locate the Nortec EL humidifier according to "Location and Clearances" on page 20, and secure it to doublelayered 3/4 in (20 mm) thick plywood (or equivalent) as follows:
1. Secure the double-layered 3/4 in (20 mm) plywood sheets to the selected mounting surface.
2. Mark the attachment points “A” and "B" at the desired position on the plywood sheets (or equivalent)
with the help of a level. For small or medium housing refer to Figure 11. For large housing refer to
Figure 12 on page 27.
3. Install 3/8×2 in grade B5 (or equivalent) lag bolts and flat washers (supplied by others) at attachment
points "A". Allow the heads of the screws to extend 0.25 in (5 mm) from the mounting surface so that
the humidifier can be installed on the bolts.
Dimension
X
A
Housing Size
Small
Medium
X
12.0 in
(305 mm)
16.0 in
(406 mm)
Y
17.56 in
(446 mm)
20.71 in
(526 mm)
A
B
Y
B
3
2
1
Figure 11: Optional Seismic Mounting, Small or Medium Housing
1
2
3
26
Installation
Lag bolt, 3/8×2 in, grade B5 (×4)
Flat washer (×4)
3/4 in (20 mm) double-layer plywood sheet (or equivalent)
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Nortec EL
Dimension
X
A
X
Housing Size
Large
X
16.0 in
(406 mm)
Y
16.75 in
(426 mm)
A
A
B
B
Y
B
3
2
1
Figure 12: Optional Seismic Mounting, Large Housing
1
2
3
Lag bolt, 3/8×2 in, grade B5 (×6)
Flat washer (×6)
3/4 in (20 mm) double-layer plywood sheet (or equivalent)
4. Remove the door panels from the humidifier.
5. Enlarge the mounting holes in the rear of the cabinet to accommodate the 3/8×2 in lag bolts.
WARNING!
Heavy object – risk of injury!
The small humidifier weighs 45 lb (20 kg), and the large humidifier weights 120 lb (54 kg).
Prevention: Use an appropriate lifting device, or request assistance to raise the humidifier into
position.
6. Carefully raise and install the humidifier onto the installed lag bolts.
7. Align the humidifier with the help of a level, then tighten the lag bolts.
8. Install additional grade B5 (or equivalent) lag bolts and flat washers (supplied by others) into the
plywood sheet (or equivalent) at attachment points “B”, and fasten securely.
9. Reinstall the door panels, and fasten them securely.
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27
5.4.5
Mounting Checklist
Check the following to ensure that the humidifier has been mounted correctly:
Unit installed in the correct location (according to "Location and Clearances" on page 20)?
Mounting surface stable, and capable of supporting the full operating weight of the humidifier?
Unit level?
Unit fastened securely?
5.5
Steam Line Connections
Steam generated by the Nortec EL humidifier is not pressurized, but is delivered at atmospheric pressure.
It can be distributed directly into a conditioned space with a built-on or remote-mounted blower pack,
or into an AHU (air handling unit) using Condair steam distributors or Condair SAM-e steam distribution
manifold.
Read "Best Practices for Installing Steam and Condensate Lines" on page 30 before installing steam lines.
5.5.1
Steam Distribution Using the Air Handling Unit
For placement of the steam distributor or SAM-e steam distribution manifold in the air handling unit, as
well as best practices and installation procedures, refer to their installation manuals.
5.5.2
Steam Distribution Using the Blower Pack
5.5.2.1
Placement of Humidifier
Figure 13 on page 29 and Table 5 show the minimum clearances required for installation of a
Nortec EL steam humidifier with a built-on blower pack.
Table 5: Minimum Clearances
Blower Pack
Capacity
5 lb/h
10 lb/h
(2.3 kg/h) (4.5 kg/h)
20 lb/h
(9 kg/h)
30 lb/h
50 lb/h
75 lb/h
100 lb/h
(13.6 kg/h) (22.7 kg/h) (34.0 kg/h) (45.4 kg/h)
Low Speed
Dimension "A" (minimum), Low speed
9 in
(0.23 m)
18 in
(0.46 m)
Dimension "B" (minimum), Low speed
75 in
(1.91 m)
86 in
(2.19 m)
174 in
(4.42 m)
12 in
(0.31 m)
189 in
(4.81 m)
248 in
(6.3 m)
48 in
(1.22 m)
84 in
(2.14 m)
153 in
(3.89 m)
218 in
(5.54 m)
High Speed
Dimension "A" (minimum), High speed
6 in
(0.16 m)
60 in
(1.53 m)
71 in
(1.81 m)
Dimension "B" (minimum), High speed
12 in
(0.31 m)
Dimension "C" (minimum)
90 in
(2.3 m)
Dimension "D" (suggested)
12 in
(0.31 m)
132 in
(3.36 in)
30 in
(0.77 m)
Note:
The values in Table 5 are based on the following nominal conditions: 72°F (22˚C), 40% RH.
Blower pack should not be installed near cold surfaces or where dew point may be reached.
Higher humidity or lower room temperature (compared to nominal conditions stated above) will require increased clearances.
28
Installation
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Nortec EL
D
D
B
A
C
Figure 13: Clearance Requirements for Nortec EL Humidifier with Built-on Blower Pack
5.5.2.2
Remote-Mounted Blower Pack
For the installation requirements and installation procedure for the remote-mounted blower pack, refer
to the blower pack manual.
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5.5.3
Best Practices for Installing Steam and Condensate Lines
Condair recommends that you observe the following best practices for installing atmospheric steam
lines and condensate lines. Refer to Figure 16, Figure 17, Figure 18 and Figure 19 for installation examples.
Steam Lines
–– Use rigid steam pipes made of copper (MED Type-L) or stainless steel (minimum DIN 1.4301) exclusively, and use steam hoses for short distances only. Use original steam and condensate hoses
from your local Condair representative. Steam and condensate lines made of any other materials
may adversely affect the operation of the unit, and will void the warranty. Refer to Table 6 on page 32
for details.
WARNING!
Excessive backpressure can result in serious injury or damage to equipment!
Excessive backpressure in the steam line may affect the proper functioning of the humidifier,
and may also cause unexpected release of hot steam vapors. Bare skin exposed to the hot
steam vapours can result in severe burns.
Prevention: Minimize the length of the steam line and the number of bends, as the backpressure
can rise approximately 0.12 in H2O for every foot (100 Pa for every meter) of steam line, and
every 90° elbow.
–– The length of the steam line should be kept as short as possible – refer to Table 6 on page 32 for
details. Avoid 90° bends, or use long radius elbows. Minimum bend radius is 12 in (300 mm) for
steam hoses, and 5× the internal diameter for rigid steam pipes. Exceeding the maximum length
can affect performance of the unit and may void the warranty. Backpressure in the line combined
with duct static pressure must not exceed 5.5 in H2O (1.37 kPa) and 10 in H2O (2.49 kPa) with the
optional fill cup extension.
Note: With oversized steam lines the maximum length can be extended. Use Condair steam hose
for short distances only. When calculating the total equivalent length, refer also to Table 7 on page 32
for equivalent length of common fittings.
IMPORTANT! When determining the length and routing of steam lines, allowances must be
made for thermal expansion. If a steam hose is used, allowances must be made for shrinkage
in the length of the hose due to aging.
–– Do not decrease the diameter of the steam line, as it increases the backpressure in the line and
also allows condensation of the steam. If that is unavoidable, install a Condair steam line reducer at
the connection to the steam distributor only, and install a condensate line just before the restriction.
Contact your local Condair representative for details of the reducer.
–– If necessary, increase the diameter of the steam line on the downslope and install a condensate
trap at the lowest point.
–– Do not combine steam lines except at the steam distributor. Use a Condair adaptor specifically designed for that purpose, and only if the humidifier steam cylinders operate in parallel.
–– If using blower packs with large Nortec EL humidifiers, do not connect the output from both steam
cylinder to a single blower pack. Each blower pack has a maximum capacity of 100 lb/h (45 kg/h).
–– The steam line from the humidifier must lead straight upwards for a minimum of 12 in (300 mm)
before continuing on to the steam distribution system.
–– The steam line must have a constant minimum upslope of 2 in/12 in (10°), or a constant minimum
downslope of 1/2 in/12 in (2°), as shown in Figure 14 on page 31.
–– Use short lengths of steam hose to connect the steam line to the humidifier or steam distributor.
Secure the steam hoses with clamps.
30
Installation
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Nortec EL
CAUTION!
Do not over-tighten the hose clamp on the steam hose. Maximum torque for 7/8 in (22 mm)
clamps is 12 in·lbs (135 N·cm), and 16 in·lbs (180 N·cm) for 1-3/4 in (45 mm) clamps.
Minimum Upslope
12 in
(300 mm)
Minimum Downslope
2 in
(50 mm)
10
½ in
(12 mm)
o
2
o
12 in
(300 mm)
Figure 14: Steam Line Slope
–– To minimize formation of condensation and maximize efficiency, the steam lines made of rigid pipes
(copper or stainless steel) must be insulated with a minimum of 1 in (25 mm) of pipe insulation over
its entire length.
–– The weight of the steam line must be supported so there is no load on the humidifier.
WARNING!
Risk of severe burns from exposure to hot steam vapours!
Restrictions in the cross-section of the steam line will cause excessive backpressure in the
steam cylinder when the unit is operating, which may cause unexpected release of hot steam
vapors. Bare skin exposed to the hot steam vapours can result in severe burns.
Prevention: Observe the following:
Nortec EL
•
Upon completion of the installation, purge the steam line to remove any contaminants and
installation materials.
•
If using a steam hose make sure there are no kinks in the hose. A heated hose is more likely
to kink.
•
To prevent condensate pockets, the steam line must not sag. If necessary, support the steam
line with pipe clamps, trough, or wall brackets, and install a condensate drain at the lowest
point in the steam line.
•
Do not install a shutoff valve (e.g. a manually operated shutoff valve, solenoid valve, etc.) in
the steam line.
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Installation
31
Table 6: Steam Line Recommendations
Steam Line
Nortec EL
Model
Maximum
Equivalent
Length
MED-L
Copper
Pipe
Diameter
005
7 ft
(2 m)
3/4 in
(20 mm)
010
12 ft
(3.5 m)
020
17 ft
(5 m)
030
22 ft
(6.5 m)
050
43 ft
(13 m)
075
100
47 ft
(14 m)
150*
200*
50 ft
(15 m)
Over-sized Steam Line**
Stainless Steel
(min. DIN 1.4301)
Pipe Diameter
Maximum
Equivalent
Length
MED-L
Copper
Pipe
Diameter
Stainless Steel
(min DIN 1.4301)
Pipe Diameter
Steam
Losses***
7/8 in
× 0.049 wall
14 ft
(4 m)
1 in
(25 mm)
1-1/8 in
× 0.049 wall
0.06 lb/h/ft
(0.09 kg/h/m)
(22 mm
× 1.25 mm wall)
24 ft
(7 m)
(29 mm
× 1.25 mm wall)
34 ft
(10 m)
44 ft
(13 m)
1-1/2 in
(40 mm)
1-3/4 in
× 0.065 wall
86 ft
(26 m)
94 ft
(28 m)
(45 mm
× 1.65 mm
wall)
1-1/2 in
(40 mm)
2 in
(50 mm)
1-3/4 in
× 0.065 wall
100 ft
(30 m)
2 in
× 0.065 wall
0.11 lb/h/ft
(0.18 kg/h/m)
(50 mm
× 1.65 mm
wall)
2 in
(50 mm)
(45 mm
× 1.65 mm wall)
2 in
× 0.065 wall
(50 mm
× 1.65 mm
wall)
Steam Hose
005030
10 ft
(3 m)
P/N 1328810 – 7/8 in (22 mm)
0.1 lb/h/ft
(0.15 kg/h/m)
050200
10 ft
(3 m)
P/N 1328820 – 1-3/4 in (45 mm)
0.15 lb/h/ft
(0.22 kg/h/m)
Notes:
* Use a single steam line for each steam cylinder. Do not combine lines except at a distributor, and only if using the humidifiers in parallel.
** The over-sized lines may require a reducer at the humidifier and the steam distributor.
*** Based on 1 in (25 mm) insulated copper pipe.
Table 7: Approximate Equivalent Length of Atmospheric Steam Line Fittings
32
Installation
Nominal
Tube Size
in (mm)
Standard 90°
Elbow
ft (m)
45° Elbow
ft (m)
Side-outlet
Tee
ft (m)
0.75-0.875
(19-22)
2 (0.6)
1 (0.3)
4 (1.2)
1.5-1.75
(38-45)
3.5 (1.1)
1.75 (0.5)
7 (2.1)
3 (76)
5 (1.5)
2.5 (0.8)
11 (3.4)
4 (102)
8 (2.4)
4 (1.2)
15 (4.6)
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
Condensate Lines
–– The condensate drain line from the steam distributor must have a constant minimum downslope of
1 in/48 in (1.2°), with a minimum trap height of 8 in (200 mm), and may be connected to the fill cup
port on the top of the humidifier, or to the building floor drain with condensate cooler as required. The
condensate trap must be at least 12 in (300 mm) below the condensate port on the steam distribution system or the "T" connector in the steam line. Refer to Figure 15.
Minimum Upslope
12 in
(300 mm)
Minimum Downslope
2 in
(50 mm)
10
½ in
(12 mm)
o
2
o
12 in
(300 mm)
Figure 15: Condensate Drain Lines
WARNING!
Risk of severe burns from hot fluids or steam!
The condensate lines may be filled with hot fluids or steam. Bare skin in contact with hot fluids
or steam can result in severe burns.
Prevention: Never plumb the condensate lines to empty into a sink used by personnel. Always
connect the lines to a drain according to applicable national and local plumbing codes.
–– Condensate lines must also be installed at all low points and at vertical transitions in the steam
line. The condensate drain lines should always connect to full-size "T" connectors in the steam line.
Install full-size "T" connectors for condensate drain lines at all transitions from vertical to horizontal.
–– For a steam line that is longer than 15 ft (4.5 m) up to the maximum recommended length, install
condensate lines and traps at regular intervals. The maximum distance between the condensate
traps for long runs is 15 ft (4.5 m).
–– Use 3/8 in (9.5 mm) condensate hose, or 3/8 in (9.5 mm) stainless steel pipe or 1/4 in (6.5 mm)
copper pipe for traps in the condensate lines.
–– Make sure that the condensate lines allow proper flow.
–– Do not over-tighten the hose clamps on the condensate lines.
IMPORTANT! Before starting up the unit, prime the traps in the condensate lines with water.
An online-sign.com production
Nortec EL
sign ref st151432911270
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Installation
33
B
C
D
A
Figure 16: Installation Example – Steam Distributor 20 in (500 mm) Above Humidifier
A
B
C
D
34
Installation
Steam line must run minimum 12 in (300 mm) vertically before continuing on to the steam distributor.
All condensate traps must be minimum 12 in (300 mm) below the condensate outlet on the steam distributor, and condensate lines
must have a constant minimum downslope of 1 in/48 in (1.2°).
The steam line must not exceed the length specified in Table 6 on page 32. The minimum bend radius is 12 in (300 mm) for a steam
hose, or 5× the internal diameter for rigid steam pipes.
Condensate traps must have a minimum height of 8 in (200 mm).
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
C
A
D
B
E
C
A
C
D
D
B
B
F
Figure 17: Installation Example – Steam Distributor Less Than 20 in (500 mm) Above Humidifier
A
B
C
D
E
F
Nortec EL
Steam line must run minimum 12 in (300 mm) vertically before continuing on to the steam distributor.
All condensate traps must be minimum 12 in (300 mm) below the condensate outlet on the steam distributor or the steam line.
The steam line must not exceed the length specified in Table 6 on page 32. The minimum bend radius is 12 in (300 mm) for a steam
hose, or 5× the internal diameter for rigid steam pipes.
Condensate traps must have a minimum height of 8 in (200 mm).
Obstacle
Condensate line must connect into a full-size "T" connector installed at the lowest point in the steam line.
2582302_D_EN_1812_Nortec-EL_IM
Installation
35
B
C
D
E
A
Figure 18: Installation Example – Rigid Steam Pipe With Insulation
A
B
D
Steam line must run minimum 12 in (300 mm) vertically before continuing on to the steam distributor.
All condensate traps must be minimum 12 in (300 mm) below the condensate outlet on the steam distributor, and condensate lines
must have a constant minimum downslope of 1 in/48 in (1.2°).
The steam line must not exceed the length specified in Table 6 on page 32. The minimum bend radius is 12 in (300 mm) for a steam
hose, or 5× the internal diameter for rigid steam pipes.
Condensate traps must have a minimum height of 8 in (200 mm).
E
Steam line must have a minimum of 1 in (25 mm) of pipe insulation over its entire length.
C
36
Installation
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
C
B
A
D
A
E
Figure 19: Installation Example – Remote-Mounted Blower Pack
A
B
C
D
E
Nortec EL
Steam line must run minimum 12 in (300 mm) vertically before continuing on to the blower pack.
All condensate traps must be minimum 12 in (300 mm) below the condensate outlet on the blower pack.
The steam line must not exceed the length specified in Table 6 on page 32. The minimum bend radius is 12 in (300 mm) for a steam
hose, or 5× the internal diameter for rigid steam pipes.
Condensate traps must have a minimum height of 4 in (100 mm).
Steam line must have upslope (minimum 10°) /downslope (minimum 2°), and condensate line must constant minimum downslope of
1 in/48 in (1.2°).
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Installation
37
5.5.3.1
Common Steam and Condensate Line Installation Mistakes
Some common steam and condensate line installation mistakes are shown in Figure 20.
2
2, 3
4, 6
1
7
4
5
2, 3
7
Figure 20: Common Steam and Condensate Line Installation Mistakes
1
2
3
4
5
6
7
38
Installation
The condensate trap is located less than the required minimum 12 in (300 mm) below the steam distributor.
The minimum bend radius of 12 in (300 mm) for the steam hose (or 5× the internal diameter for rigid pipes) is not maintained.
No condensate trap is installed at the vertical transition.
The minimum slope for steam and condensate lines is not maintained.
The steam line does not run straight up for the required minimum 12 in (300 mm) before continuing on to the steam distributor.
On long steam line runs, condensate traps are required every 15 ft (4.5 m), and must connect into full-size "T" connectors in the steam
line. A condensate trap must also be installed a minimum of 12 in (300 mm) below the steam line.
Steam lines must not merge or reduce in diameter except at the steam distributor (only through a Condair adaptor), and must have a
condensate line just before the restriction.
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Nortec EL
5.5.4
Steam Connections Checklist
Check the following to ensure that the steam connections for the humidifier have been installed correctly:
Steam Line
Observed all best practices?
Steam line exceed maximum length specified in Table 6 on page 32?
Minimum bend radius of 12 in (300 mm) for steam hose, or 5× internal diameter for rigid pipes
maintained?
Steam line sized correctly?
Backpressure in the line combined with duct static pressure exceed 5.5 in H2O (1.37 kPa), or
10 in H2O (2.49 kPa) with the optional Fill Cup Extension?
Steam lines run straight up from the humidifier steam outlet for at least 12 in (300 mm) before bend?
Steam line have a constant minimum upslope of 2 in/12 in (10°), or a constant minimum downslope
of 1/2 in/12 in (2°)?
Steam lines do not reduce in diameter except, if required, at the steam distributor, and condensate
line installed just before the restriction?
Steam lines do not merge except at the steam distributor through a Condair adaptor?
Steam line does not sag or kink? Supported adequately? Any low points in line without condensate
trap?
If a steam hose is used, is it attached securely with clamps? Clamps secure without crushing steam
line?
Allowances for thermal expansion during operation, and shortening of the hose due to aging taken
into consideration?
Condensate Line
Local codes on drain water temperature requirements have been satisfied?
Condensate line from the steam distributor condensate port connected to the humidifier fill cup port,
or the drain?
Condensate lines installed at all low points, and at vertical transitions in the steam line?
Condensate lines in the steam line always connect to full-size "T" connectors?
Condensate traps have a minimum loop height of 8 in (200 mm) and installed at least 12 in (300 mm)
below the "T" connector or steam distributor?
Condensate traps from the blower pack have a loop height of 4 in (100 mm), and 2 in (50 mm) from
the steam adaptor (for units with small steam adaptors)?
All condensate lines have a constant minimum downslope of 1 in/48 in (1.2°)?
Maximum distance between the condensate traps on long runs is 15 ft (4.5 m)?
Condensate traps primed with water?
Nortec EL
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Installation
39
5.6
Water Connections
Refer to "Site Requirements" on page 19 for the water supply and drain requirements.
Read "Water Connection Requirements" on page 42, and perform the water connections as shown in Figure 21
on page 40 and Figure 22 on page 41.
5.6.1
Water Connections Overview
11
10
9
4
5
8
7
1
6
5
3
2
4
Figure 21: Water Supply and Drain Connections, Small and Medium Units
1
2
3
4
5
6
7
8
9
10
11
40
Installation
Drain canal (outlet un-threaded), 1-3/16 in (30 mm) O.D.
Hose clamp (supplied)
Flexible bent hose (supplied)
Drain line, minimum 7/8 in (22 mm) I.D. (not supplied)
Water supply line, minimum 1/2 in (13 mm) (not supplied)
Adaptor, 3/4 BSPP to 1/2 in NPT (supplied)
Fill valve (3/4 in BSPP plastic threads)
Air gap and optional trap (not supplied)
Shutoff valve (not supplied)
Filter, 5 μm (optional, but recommended)
Union fitting (not supplied)
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Nortec EL
11
4
10
9
5
8
1
1
7
6
5
3
2
4
Figure 22: Water Supply and Drain Connections, Large Units
1
2
3
4
5
6
7
8
9
10
11
Nortec EL
Drain canal (outlet un-threaded), 1-3/16 in (30 mm) O.D.
Hose clamp (supplied)
Flexible bent hose (supplied)
Drain line, minimum 7/8 in (22 mm) I.D. (not supplied)
Water supply line, minimum 1/2 in (13 mm) (not supplied)
Adaptor, 3/4 BSPP to 1/2 in NPT (supplied)
Fill valve (3/4 in BSPP plastic threads)
Air gap and optional trap (not supplied)
Shutoff valve (not supplied)
Filter, 5 μm (optional, but recommended)
Union fitting (not supplied)
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Installation
41
5.6.2
Water Connection Requirements
Water and drain connections must meet the following requirements:
–– All water supply and drain connections are to be installed to local plumbing codes.
–– For ease of maintenance, a water shutoff valve and union fitting must be installed in the supply line
before the humidifier.
–– The water supply piping should have a minimum diameter of 1/2 in (13 mm), with a 1/2 in NPT female
end. The piping material should be made of copper, stainless steel or plastic certified for drinking
water systems.
CAUTION!
Risk of damage to the plastic threads!
The threads on the fill valve are made of plastic.
Prevention: Hand-tighten the NPT adaptor to the fill valve.
–– The (optional but recommended) water filter must be installed as close as possible to the humidifier.
–– The air gap funnel should have a minimum diameter of 2-1/2 in (64 mm).
–– The air gap and optional trap should be located away from the control cabinet to keep any rising
steam from damaging the electrical components in the cabinet.
–– The drain piping should have a minimum internal diameter of 7/8 in (22 mm).
–– The flexible bent hose exiting the humidifier should be connected to a drain line with a minimum
internal diameter of 7/8 in (22 mm) and secured with clamps.
–– The drain line should be as short as possible, and have a constant minimum downslope of 1 in/48 in
(1.2°) to the funnel without touching its sides or bottom. Use stainless steel or copper pipe to handle
temperatures up to 212°F (100°C).
–– Drain lines from large humidifiers with dual steam cylinders must empty into separate open air gap
funnels before connecting to the drain. Combined drain line minimum 1.5 in (38 mm) ID.
–– Upon completion of installation, flush the water supply and drain lines to clear out any debris in the
lines. Check the strainer in the fill valve to ensure it is clear of all debris.
5.6.3
Water Connections Checklist
Check the following to ensure that the water connections for the humidifier have been installed correctly:
Shutoff valve and union fitting installed in supply line?
Water supply piping minimum 1/2 in (13 mm) diameter, and made of copper, stainless steel or plastic
certified for drinking water systems?
Optional 5 μm water filter installed in the supply line close to the humidifier?
Water supply temperature 34-104°F (1-40°C)?
Water supply surge-free and pressure regulated to 30-80 psig (207-550 kPa)?
Leak-free water supply line?
Air gap funnel has a minimum diameter of 2-1/2 in (64 mm)?
Air gap funnel and any other drain located away from the control cabinet in the humidifier?
Drain lines have a minimum internal diameter of 7/8 in (22 mm)?
Drain line have a constant minimum downslope of 1 in/48 in (1.2°) to funnel without touching its
sides or bottom?
Drain lines from large humidifiers with dual steam cylinders empty into separate open air gap funnels
before connecting to the drain? Combined drain line minimum 1.5 in (38 mm) ID?
All debris flushed from supply and drain lines?
42
Installation
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Nortec EL
5.7
Humidity Control Systems
5.7.1
Control Device Locations
The following schematic describes a potential system setup with respect to control devices. Refer to
Figure 23.
Δp
φ
φ
max
φ
3
1
2
1
Figure 23: System Setup Schematic
1
2
3
On/Off humidistat, modulating humidistat, or humidity sensor
On/Off high limit humidistat, modulating humidistat, or humidity sensor
Air proving switch
Notes:
5.7.2
•
Humidity sensors and humidistats (1) can be modulating or On/Off. Preferred location is in the return
duct, as the supply air is well mixed with the room air at this location. Avoid placing near discharge
diffuser, near doorways, in sunlight, or in airflow “dead-zones”.
•
Locate the high limit humidistat or humidity sensor (2) downstream of the humidifier’s distributor so that
it can sense a duct that is over-humidified. Recommended setting is 85% RH. Locate it downstream
of the distributor – at least 5x the absorption distance away. If the absorption distance is not known,
locate it at least 10 feet (3 m) downstream from the distributor. Can be a humidistat (modulating or
On/Off), or a humidity sensor.
•
Locate the air proving switch (3) in the same duct as the humidifier’s distributor so that it can sense
air flow (or lack thereof).
Permissible Control Signal Inputs
Table 8 shows the different permissible control signal inputs the Nortec EL steam humidifier can handle.
Table 8: Permissible Control Signal Inputs
Humidity Control with External Controller Control Signals
Humidity Control with Internal PI
Controller Humidity Sensor Signals
Digital Inputs (via Modbus,
BACnet IP/MSTP slave)
0-5 VDC (potentiometer 135-10kΩ)
1-5 VDC
0-10 VDC
2-10 VDC
0-20 VDC
0-16 VDC
3.2-16 VDC
0-20 mA
4-20 mA
0-5 VDC (potentiometer 135-10kΩ)
1-5 VDC
0-10 VDC
2-10 VDC
0-20 VDC
0-16 VDC
3.2-16 VDC
0-20 mA
4-20 mA
Standard
BACnet IP, BACnet MSTP (slave),
Modbus
Optional
BACnet IP (BTL), BACnet MSTP (Master, BTL), Lonworks
Humidistat (24 V On/Off)
Nortec EL
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Installation
43
5.8
Electrical Connections
Refer to the specification label in Figure 3 on page 13 for the electrical requirements.
Install the electrical connections according to the wiring diagram(s) (Figure 24 on page 45, and Figure 25
on page 47, as applicable) and the instructions for "External Connections" on page 48.
For connecting multiple Nortec EL steam humidifiers, refer to "Connecting Multiple Units Using Linkup" on page 58.
5.8.1
General
Safety
The electrical installation work requires removal of the door panels in the humidifier. Observe the
following safety precautions:
DANGER!
Risk of electric shock!
The humidifier is mains powered. Live parts may be exposed when the door panels are
open. Touching live parts may cause severe injury or even death.
Prevention: The humidifier 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.
CAUTION!
Electrostatic discharge (ESD)!
The electronic components inside the humidifier 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 ANSI/ESD-S20.20.
44
Installation
•
All electrical installation work must be performed only by a licensed electrician authorized by the
customer. It is the customer’s responsibility to verify qualifications of the personnel.
•
The electrical installation must be performed according to the wiring diagrams in this manual,
the instructions in this section, as well as applicable national and local codes.
•
All cables must lead into the unit, via appropriate cable glands or grommets, and be properly
supported.
•
Make sure the cables are secured, and do not rub on any components or become a tripping hazard.
•
Observe national and local codes for maximum cable length and required wire sizes for cables.
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
Wiring Diagrams
5.8.2.1
Nortec EL Steam Humidifier, Steam Cylinder A
CYLINDER
A
Y
}
To transformer
(primary side)
To Level Sensor
QC2
R
R
Connector
X4
B
To Level Sensor
QC1
Module A (Three Phase)
Dual Contactor
X0
}
Y
B
To Current Sensor
T3 T2 T1
L3 L2 L1
B
Note (A) interconnected to
Module B if double unit
s s s s s s
R
Y
T3 T2 T1
L3 L2 L1
R
Y
B
Steam Cylinder
Primary
Fuse
Option
Main Contactors
L3 L2 L1
5.8.2
Cylinder with Dual Contactor
Cylinder with Single Contactor
ON/OFF
Switch
R
B
Transformer
1
Blower Pack
Connection
L1 N
1
NSW L1SC NSW L1SW L1SW
INLET
CONTA. SPARE/DRAIN
F3 4AT
B
MAIN SUPPLY
L1 N SC1 SC2 PE PE
X1
1
NSW L1SC
O
R
Y
BL
R
1
LEVEL SENS.
Module A (One Phase)
(120/277/347)
X0
SEC
24Vac
X2
MODULE B
P N P1 PE
X7
INLET CONT. SPARE DRAIN
1
BL
R
O
1A
O
R
G
120V
O
R
B
B
Blower Pack
Connection
L1 N
}
Note (B)
interconnected
to terminal X1
of Driver Board B
(Double unit
wiring only)
B
1A
s
BL
1A
Two or Three Phase 208/240/480/600 BP
G
120V
Single Phase 277/347 BP
R
R
L1 N
2A
s
SC OK
F1 1AT
B
Blower Pack
Connection
B
PWR IC
RS4852
24V GND
GND D+
T1
SPARE2 SPARE1
1
1
B R
D-
GND D+
X15
X14
X13
1
R
1
R
R
R
1
B
Y
R
Y
R
B
R
Y
B
R
R
1
JP1
10V
RS4851
24V
JP3
LOW 24V GND
LEVEL
SW1
HWS
DRIVER
BOARD
A
CONT. SIGN. LIM. SIGN. BLOWER ON/OFF
V+ IN GND IN GND 24V IN 24V IN
X8
X12
X9
X11
COMM
HB OK
R
Optional Blower Pack Power Supply Connection
D-
B
9
8
7
6
5
4
3
2
1
Blower Pack
N.O.
Air Proving
+
CURRENT SENSOR
L1 N
Fill
Drain
1
s
QC2
3
X0
Primary
Fuse
Option
PRI
s
QC1
2
Single Phase 120 BP
NOTE:
Set SW1 to 0 fo r
driver boar d A
Module A (One Phase)
(208/240/480/600)
s
4
X5
X4
X6
L3 L2 L1
T2 T1
L2 L1
R
B
B
X0
To transformer
(primary side)
Connector
X4
Y
R
Module A (Three Phase)
Single Contactor
s s
Steam Cylinder
T3 T2 T1
L3 L2 L1
R
To Level Sensor
QC2
To Level Sensor
QC1
SWITCH
}
Y
L1SW N L1FU
R
1
B
Y
To Current Sensor
Main
Contactor
B
R
Y
B
}
B
Primary
Fuse
Option
s s s
Steam Cylinder
R
Note (A) interconnected to
Module B if double unit
L2 L1
Broken lines 3 phase
6 wire unit
GND
+ 10 Vdc
(+) Limit Signal
(+) Control Signal
(-) Signals
Loop
Security
1
G Y GY BR GY B
Note (C) Connects to Terminal X14 of Driver Board B (if double unit)
J21
JP8
JP11
JP7
-
GND +
J6
JP4
-
1 2 3 4
INTEGRA TED CONTROL
(IC) BOARD
J17 DISPLAY
J18 DISPLAY
J23 USB
J10
Steam Unit ON
9 10
Analog Out
1 2
(ETHERNET)
J15
J16
BAT
- GND +
CR2032
J12
J14
Driver B
F1
100mA
Service
5 6 7 8
H1 Fault Remote Board
24V GND GND +
Error
1 2 3 4
Sensor Supply
Max. 60mA
Sim Card
Main unit
Driver A
J19 COMM PORT
3.3V 5V GND RD TD
J3 ACC
J2 RFB
GY Y G R B
J22 LED
Figure 24: Wiring Diagram - Nortec EL Humidifier, Steam Cylinder A (Module A)
Nortec EL
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Installation
45
Legend:
F1 Internal fuse, driver board (1A, slow-acting)
F3 Internal fuse, driver board (4A, slow-acting)
JP4 Jumper for activating the termination resistor for Modbus or BACnet MSTP network.
J6 Modbus connector (RS485 interface)
JP7 Jumper for activating Modbus or BACnet MSTP communication via connector J6.
JP8 Termination, Linkup system
J10 Linkup connector
K1 Main contactor, supply voltage
LV Low voltage terminal strip A
SW1 Rotary switch, module identification (Module A: 0)
X0 Terminal block, supply voltage
46
Installation
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Nortec EL
5.8.2.2
Nortec EL Steam Humidifier, Steam Cylinder B (Large Units Only)
Figure 25 shows the wiring diagram for large humidifiers with a second steam cylinder (usually referred
to as Cylinder B).
Figure 25: Wiring Diagram - Nortec EL Humidifier, Steam Cylinder B (Module B)
F1 Internal fuse, driver board (1A, slow-acting)
F3 Internal fuse, driver board (4A, slow-acting)
K1 Main contactor, supply voltage
LV Low voltage terminal strip B
SW1 Rotary switch, module identification (Module B: 1)
Nortec EL
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Installation
47
5.8.3
External Connections
The different external connections to the Nortec EL steam humidifier are discussed below.
5.8.3.1
3-Phase Power Supply Connection
Figure 26 shows the 3-phase power supply connections for the Nortec EL steam humidifier.
IMPORTANT! The optional internal fuse is not a substitute for an external fuse. A dedicated
external fused disconnect switch must be installed, and the fuse rating must not exceed the
maximum circuit protection indicated on the specification label – refer to Figure 3 on page 13.
s s s
L3 L2 L1
X0
All wiring must be in accordance with national and local electrical codes.
2
External
3
1
Figure 26: 3-Phase Power Supply Connections
1
2
3
48
Installation
External fused disconnect switch
Terminal block, power supply (X0)
Optional internal primary fuse
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
5.8.3.2
Single-Phase Power Supply Connection
Figure 27 shows the single-phase power supply connections for the Nortec EL steam humidifier.
IMPORTANT! The optional internal fuse is not a substitute for an external fuse. A dedicated
external fused disconnect switch must be installed, and the fuse rating must not exceed the
maximum circuit protection indicated on the specification label – refer to Figure 3 on page 13.
s s s
L3 L2 L1
X0
All wiring must be in accordance with national and local electrical codes.
2
External
3
1
Figure 27: Single-Phase Power Supply Connections
1
2
3
Nortec EL
External fused disconnect switch
Terminal block, power supply (X0)
Optional internal primary fuse
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Installation
49
5.8.3.3
External Safety Chain
The external safety chain consists of potential-free contacts of the external monitoring devices (for example, high limit humidistat, air proving switch, etc.) which are connected in series to terminal points "1"
and "2" on the low voltage terminal strip. Refer to Figure 24 on page 45 and Figure 28.
If the blower pack is installed, then connect it to terminal points "8" and "9" on the low voltage terminal
strip. Make sure that no other wires are connected to these terminal points. If using multiple blower
packs, make sure that they are connected in series.
Note: Interrupting the external safety chain disconnects power from the contactor and fill valve, and is
intended as a safety precaution. To control the humidifier with an on/off humidistat refer to "External On/
Off Input" on page 53 for details.
IMPORTANT! Install a jumper between terminal points "8" and "9" on the low voltage terminal
strip if the blower pack is not used.
IMPORTANT! A high limit humidistat is highly recommended to prevent over-humidification and
potential damage to property.
IMPORTANT! Install a jumper between terminal points "1" and "2" on the low voltage terminal
strip if no external On/Off devices are connected to the safety chain – not recommended.
The connecting cables must lead into the control cabinet through a cable gland or grommet.
CAUTION!
Risk of damage to internal components!
Prevention: DO NOT apply voltage to low voltage terminal strip terminal points "1" and "2"
through the contacts of the external On/Off devices.
5
LV
9
8
+
7
6
5
4
3
2
1
1
4
φ
Δp
External
max
3
2
Figure 28: External Safety Chain Connections
1
2
3
4
5
50
Installation
Blower pack
High limit humidistat – highly recommended
Air proving switch
Jumper (installed if no devices connected to safety chain – not recommended)
Jumper (installed if the blower pack is not used)
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
5.8.3.4
Modulating Demand or Humidity Signal
Connect an external humidity sensor input or direct demand modulating input to terminal points "3" and
"4" in the low voltage terminal strip. Refer to Figure 24 on page 45 and Figure 29. The permissible control
signal input values are shown in Table 8 on page 43.
Do not connect multiple modulating signals to the same modulating input on the humidifier. If necessary,
a second modulating signal can be connected to terminal point "5" and "3", using terminal point "3" as
common. Make sure that Control Channels is set to "Dual" in the control software to utilize the second
modulating signal – refer to the Operation and Maintenance Manual.
Alternately, transducer signals or demand signals can be written to the humidifier via a valid digital communication protocol. Set Source to "Modbus", "BACnet IP", "BACnet MSTP" or "Lonworks".
The signal cable must lead into the control cabinet through a cable gland or grommet. If a shielded signal
cable is used, connect the shielding to terminal point "3".
CAUTION!
If the shielding of the signal is already connected to a potential or a grounded conductor, do not
connect it to terminal point "3".
LV
9
8
7
6
External
5
4
3
2
1
1
2
Figure 29: Modulating Demand or Humidity Signal Connection
1
2
Nortec EL
Modulating demand or humidity sensor signal
Modulating demand or humidity sensor signal (additional)
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Installation
51
5.8.3.5
Ohmic Humidity Controller (Passive)
If a passive 135-10kΩ ohmic humidity controller is used, connect the signal cable to the terminal points
3", "4" and "6" in the low voltage terminal strip. Refer to Figure 24 on page 45 and Figure 30. The permissible control signal input values are shown in Table 8 on page 43.
The signal cable must lead into the control cabinet through a cable gland or grommet.
IMPORTANT! When connecting an ohmic humidity controller, jumper JP1 on the driver board
must be set to 10V (so that output of terminal point "6" is 10V), and Signal Type must be set to
"0-10V" in the control software. Refer to the Operation and Maintenance Manual.
LV
9
8
7
6
External
24V
JP1
10V
5
4
3
2
1
1
Figure 30: Ohmic Humidity Controller Connection
1
52
Installation
Ohmic humidity controller, 135-10kΩ
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Nortec EL
5.8.3.6
24V On/Off Humidistat
If a 24V On/Off humidistat is used, connect the signal cable to the terminal points "4" and "6" in the low
voltage terminal strip. Refer to Figure 24 on page 45 and Figure 31.
The signal cable must lead into the control cabinet through a cable gland or grommet.
IMPORTANT! When connecting a 24V On/Off humidistat, jumper JP1 on the driver board must
be set to 24V (so that terminal point "6" will output 24VDC), and Control Mode must be set to
"On/Off" in the control software. Refer to the Operation and Maintenance Manual.
LV
9
8
7
6
External
24V
JP1
10V
5
4
3
2
1
1
Figure 31: 24V On/Off Humidistat Connection
1
24V On/Off humidistat
5.8.3.7
External On/Off Input
The humidifier can also be controlled by an external On/Off input through connector X11 on the driver
board – refer to Figure 24 on page 45.
The signal cable must lead into the control cabinet through a cable gland or grommet
Enable Input must be set to "On" in the control software to use this input signal – refer to the Operation
and Maintenance Manual.
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Installation
53
5.8.3.8
Dual Steam Cylinders Control Wiring
The dual steam cylinders in the large model Nortec EL steam humidifier can be configured to operate
in series, in parallel, or independently – by setting Dual Cylinder Mode in the controls software. Refer
to the Operation and Maintenance Manual.
In series or parallel mode, all the control signals are wired to low voltage terminal strip A. Connections
are made to terminal strip A in the same way as for a single cylinder unit. In addition, a jumper wire must
be installed between the terminal points "2" in the low voltage terminal strips A and B. Refer to Figure 32.
The independent mode is used to control humidity in two separate zones, each with its own separate
set of control signals. Connections are made as shown for single cylinder units but with independent
connections to each terminal strip. All the control signals from Zone A are connected to low voltage terminal strip A, and signals from Zone B are connected to low voltage terminal strip B. Refer to Figure 33.
1
2
1
2
LV
LV
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
External
3
Inputs
Figure 32: Dual Steam Cylinders Control Wiring, Series/Parallel Mode
1
2
3
Low voltage terminal strip A
Low voltage terminal strip B
Jumper wire (for parallel or series mode only)
1
2
1
2
LV
LV
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
External
Inputs - Zone A
Inputs - Zone B
Figure 33: Dual Steam Cylinders Control Wiring, Independent Mode
1
2
54
Installation
Low voltage terminal strip A, Zone A
Low voltage terminal strip B, Zone B
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
5.8.3.9
Remote Relay PCB Connections
The optional remote relay PCB (printed circuit board) on the Nortec EL steam humidifier has the following four potential-free relay contacts for remote display of humidifier status and fault conditions. Refer
to Figure 34 for the relevant terminal contacts.
Error – this relay can be wired to open (NC) or close (NO) when a fault is detected by the humidifier
controls.
•
Service – this relay is activated when the set maintenance interval elapses. It can be wired to open
(NC) or close (NO) when a service warning appears on the touchscreen panel of the humidifier and
the status LED turns yellow in color.
Note: The way this relay handles system warnings (all warnings or service warnings only) can
be configured in the control software – refer to the Remote Fault Board tab in the Operation and
Maintenance Manual.
•
Steam – this normally open (NO) relay closes when the control board detects a current draw and
production of steam.
•
Unit on – this normally open (NO) relay closes when the humidifier has power, and the On/Off switch
is in the On position.
F1
1
2
1
2
3
100mA
4
J2 on Control Board
Analog Out
•
Service
Steam Unit ON
INTERNAL
H1
1 2 3 4 5 6 7 8 9 10
Sensor Supply
Max. 60mA
Error
EXTERNAL
Figure 34: Remote Relay PCB Connections
The remote relay PCB connects to the connector J2 on the Nortec EL control board.
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Installation
55
5.8.3.10 Accessory Relay PCB Connections
The optional accessory relay PCB on the Nortec EL steam humidifier has the following four potentialfree relay contacts that can be used to control other accessory devices. Refer to Figure 35 for the relevant
terminal contacts.
Flush A – this normally open (NO) relay can be wired to activate or deactivate the optional valve for
flushing the water supply line for steam cylinder A.
•
Flush B – this normally open (NO) relay can be wired to activate or deactivate the optional valve for
flushing the water supply line for steam cylinder B.
•
Fan Activate B – this normally open (NO) relay can be wired to activate or deactivate an external
fan of the AHU (air handling unit) connected to steam cylinder B.
•
Fan Activate A – this normally open (NO) relay can be wired to activate or deactivate an external fan
of the AHU connected to steam cylinder A.
F1
1
2
1
2
3
100mA
4
J3 on Control Board
Analog Out
•
Flush B
Fan B
Fan A
1 2 3 4 5 6 7 8 9 10
Sensor Supply
Max. 60mA
Flush A
INTERNAL
EXTERNAL
Figure 35: Accessory Relay PCB Connections (Optional)
The accessory relay PCB connects to the connector J3 on the Nortec EL control board.
56
Installation
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
5.8.3.11 Modbus Connection
The Nortec EL steam humidifier comes standard with a Modbus communications interface, which can
be used to remotely control its output or monitor its operation.
Refer to Figure 36 and connect the Modbus communication cable to the Nortec EL steam humidifier as
follows:
1. Connect a Modbus cable to the connector J6 on the Nortec EL control board. Refer to Table 9 for
Modbus cable requirements, and Table 10 for communication parameters. Contact your Condair representative if assistance is needed to change the default communication parameters.
Note: The jumper JP7 on the control board must be installed to activate Modbus or BACnet MSTP
communication via RS485 interface (J6). If the jumper is not installed, no communication will take
place through J6.
JP11
Ethernet
TD RD GND 5V 3.3V
COMM PORT
J19
BAT
JP7
J21
GND GND 24V
J23
CR2032
USB
J3 ACC J2 RFB
JP8
J12 J14
J22
J6
-
-
ACC
GND
+
+
JP4
-
CONTROL BOARD
J10
GND
+
SIM Card
Main Unit
J6
-
J2
J3
+
RFB
2. Install the jumper JP4 on the control board if the Nortec EL steam humidifier is the first or last unit in
the network. Termination is generally not required if the network is less than 3280 ft (1000 m) in length.
J17
J18
DISPLAY
DISPLAY
LED
GND
JP4
JP7
Figure 36: Modbus Connection on Nortec EL steam humidifier
JP4 Jumper for activating the termination resistor for Modbus or BACnet MSTP network
J6 Modbus connector (RS485 interface)
JP7 Jumper for activating Modbus or BACnet MSTP communication via RS485 interface (J6)
Table 9: ModBus Cable Requirements
BMS Protocol
Modbus
Signal Type
Recommended Cable
EIA-485, 2-wire
18-24 AWG shielded, twisted
pair, 120Ω *
Maximum Distance from
Condair humidifier to BMS
2200 ft (670 m)
* Connect humidifiers in a daisy chain to the Modbus RTU. Ground shield at on end only – either at the BMS or the humidifier.
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Installation
57
Table 10: Modbus Communication Parameters
Parameter
Signal type
Software Adjustable Range
EIA-485
–
Transmission mode
RTU
–
Baud rate
9600
110, 300, 600, 1200, 2400, 4800,
9600, 19200, 38400, 57600, 76800
or 115200
Data bits
8
–
Stop bits
1
–
Parity
5.8.4
Default
Even
Odd, Even, None
Address
10
1-247
Time out
300 s
1-300 s
Connecting Multiple Units Using Linkup
The integrated controller in the Nortec EL steam humidifier allows up to six integrated controllers (for a
maximum of 12 steam cylinders) to be connected in a "main-extension" configuration using Condair's
Linkup system. All the humidifiers within this setup must share the same location, and all linked units
will be controlled by one set of control signals connected to the main unit.
Refer to Figure 37 and connect multiple unit using Linkup as follows:
1. Connect all control signals for the entire Linkup configuration to the low voltage terminal strip A in
the main unit.
2. Install a jumper wire between the terminal points "1" and "2" in the low voltage terminal strip on all
extension units.
3. Connect a multi-strand twisted pair shielded cable (18-24 AWG, 120 Z) between the J10 connectors
on the control board of each Nortec EL steam humidifier in the Linkup system.
IMPORTANT! Do not reverse polarity.
4. Install the termination jumper JP8 in the control board of the last extension unit in the Linkup system.
5. Finally, refer to the Operation and Maintenance Manual to set up the multi-unit configuration in the
control software.
58
Installation
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
RFB
ACC
CONTROL BOARD
RFB
ACC
-
+
-
+
-
+
-
ACC
+
CONTROL BOARD
JP11
BAT
JP7
J2
J3
CR2032
J6
J10
GND
JP8
JP4
SIM Card
Main Unit
J12 J14
GND
GND GND 24V
JP11
BAT
JP7
CR2032
J10
-
-
CONTROL BOARD
GND GND 24V
+
J12 J14
GND
JP8
JP4
SIM Card
Main Unit
+
CR2032
J10
GND
-
BAT
JP7
J6
+
JP11
J2
J3
-
GND GND 24V
+
J12 J14
JP8
JP4
SIM Card
Main Unit
GND
-
J10
GND
+
J6
-
J2
J3
3
2
+
RFB
1
GND
JP8
LV
LV
LV
9
8
9
8
9
8
7
6
7
6
7
6
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
All inputs
5
4
4
Figure 37: Multi-Unit Linkup Connections
1
2
3
4
5
5.8.5
Main unit (all control signals to unit)
Extension unit #1 (no control signals to unit)
Extension unit #X (no control signals to unit)
Jumper (on all extension units)
Termination jumper, JP8 (only on last unit in Linkup chain)
Maximum External Fuse
Table 11: Maximum External Fusing, Nortec EL Duct Single-Phase
Maximum External Disconnect (A)
–
–
–
–
–
–
–
–
–
–
13.5
20
3.7
9.0
15
3.7
7.8
15
3.7
6.2
15
Nortec EL Duct 020
–
–
–
7.5
36.0
45
7.5
31.2
40
7.5
27.0
35
7.5
18.0
25
7.5
15.6
20
7.5
12.5
20
Nortec EL Duct
030-200
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Maximum Current (A)
–
3.7
Maximum Output (kW)
Maximum External Disconnect (A)
–
20
Maximum Current (A)
–
15.6
Maximum Output (kW)
Maximum External Disconnect (A)
–
3.7
Maximum Current (A)
–
25
Maximum Output (kW)
–
18.0
Maximum Current (A)
–
3.7
Maximum Output (kW)
–
–
Maximum Current (A)
20
–
Maximum Output (kW)
15.6
–
2582302_D_EN_1812_Nortec-EL_IM
Maximum External Disconnect (A)
550-600V/1~
1.9
Maximum Current (A)
Maximum External Disconnect (A)
440-480V/1~
Nortec EL Duct 010
Maximum Output (kW)
Maximum External Disconnect (A)
380-425V/1~
Maximum External Disconnect (A)
277V/1~
Maximum Current (A)
220-240V/1~
Nortec EL Duct 005
Model
Nortec EL
208V/1~
Maximum Output (kW)
110-120V/1~
Installation
59
Table 12: Maximum External Fusing, Nortec EL Duct 3-Phase
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Nortec EL Duct 005
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Nortec EL Duct 010
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Nortec EL Duct 020
7.5
20.8
25
7.5
18.0
25
7.5
10.4
15
7.5
9.0
15
7.5
7.2
15
Nortec EL Duct 030
11.2
31.1
40
11.2
27.0
35
11.2
15.6
20
11.2
13.5
20
11.2
10.8
15
Nortec EL Duct 050
18.7
51.9
70
18.7
45.0
60
18.7
26.0
35
18.7
22.5
30
18.7
18.0
25
Nortec EL Duct 075
28.1
77.9
100
28.1
67.5
90
28.1
39.0
50
28.1
33.7
45
28.1
27.0
35
Nortec EL Duct 100
33.7
93.4
125
37.4
90.0
125
37.4
52.0
70
37.4
45.0
60
37.4
36.0
45
Nortec EL Duct 150
56.1 155.7 200
56.1 135.0 175
56.1
78.0
100
56.1
67.5
90
56.7
54.0
70
Nortec EL Duct 200
67.3 186.9 250
74.8 180.0 225
74.8 104.1 150
74.8
90.0
125
74.8
72.0
90
Model
Maximum Current (A)
550-600V/3~
Maximum Output (kW)
440-480V/3~
Maximum External Disconnect (A)
380-415V/3~
Maximum Current (A)
220-240V/3~
Maximum Output (kW)
208V/3~
Table 13: Maximum External Fusing, Nortec EL Space Single-Phase
Maximum Current (A)
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Nortec EL Space
005
2.0
16.8
25
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Nortec EL Space
010
–
–
–
3.9
18.7
25
3.9
16.2
25
3.9
14.0
20
3.9
9.4
15
3.9
8.1
15
3.9
6.5
15
Nortec EL Space
020
–
–
–
7.6
36.7
50
7.6
31.8
40
7.6
27.5
35
7.6
18.4
25
7.6
15.9
20
7.6
12.7
20
Nortec EL Space
030-200
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Model *
Maximum Output (kW)
550-600V/1~
Maximum External Disconnect (A)
440-480V/1~
Maximum Current (A)
380-415V/1~
Maximum Output (kW)
277V/1~
Maximum External Disconnect (A)
220-240V/1~
Maximum Current (A)
208V/1~
Maximum Output (kW)
110-120V/1~
* Space or RM (remote blower pack powered by the humidifier) configuration
60
Installation
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
Table 14: Maximum External Fusing, Nortec EL Space 3-Phase
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Maximum Output (kW)
Maximum Current (A)
Maximum External Disconnect (A)
Nortec EL Space 005
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Nortec EL Space 010
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Nortec EL Space 020
7.7
21.5
30
7.7
18.6
25
7.7
10.8
15
7.7
9.3
15
7.7
7.4
15
Nortec EL Space 030
11.5
31.9
40
11.5
27.6
35
11.5
16.0
20
11.5
13.8
20
11.5
11.0
15
Nortec EL Space 050
19.0
52.6
70
19.0
45.6
60
19.0
26.4
35
19.0
22.8
30
19.0
18.2
25
Nortec EL Space 075
28.3
78.6
100
28.3
68.1
90
28.3
39.4
50
28.3
34.1
45
28.3
27.2
35
Nortec EL Space 100
33.9
94.2
125
37.7
90.6
125
37.7
52.4
70
37.7
45.3
60
37.7
36.2
50
Model *
Maximum Current (A)
550-600V/3~
Maximum Output (kW)
440-480V/3~
Maximum External Disconnect (A)
380-415V/3~
Maximum Current (A)
220-240V/3~
Maximum Output (kW)
208V/3~
* Space or RM (remote blower pack powered by the humidifier) configuration
5.8.6
Electrical Connections Checklist
Check the following to ensure that the electrical connections for the humidifier have been installed correctly:
Power supply meet the voltage and current requirements shown on the specification label (Figure 3
on page 13)?
Power supply have an external dedicated fused disconnect?
All wiring done according to the wiring diagram and instructions in this manual?
All cables fastened securely?
All cables free of tension and pass through cable glands or grommets?
Electrical installation meet the applicable national and local codes?
All door panels closed and fastened securely?
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Installation
61
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62
Installation
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
6
Product Specifications
6.1
Weights
Table 15: Weights
Model
Nortec EL
Nortec EL Space
Nortec EL
Small
Medium
Large
Net weight
45 lb
(21 kg)
85 lb
(39 kg)
120 lb
(55 kg)
Operating weight
65 lb
(30 kg)
150 lb
(68 kg)
245 lb
(112 kg)
Net weight
83 lb
(38 kg)
123 lb
(56 kg)
–
Operating weight
103 lb
(47 kg)
188 lb
(85 kg)
–
2582302_D_EN_1812_Nortec-EL_IM
Product Specifications
63
6.2
Dimensions
6.83
(173.5)
2x 0.31
(8.0) ø
2.82
(71.7)
0.87
(22.0) ø
7.62
(193.5)
4.88
(123.8)
16.54
(420)
0.28
(7)
19.69
(500)
14.33
(364)
A
3.16
(80.2)
12
(304.8)
12
(304.8)
1.37
(35)
2.28
(57.6)
2.12
(54)
26.4
(670.5)
2.28
(57.6)
2.12
(54)
3.25
1.75 (82.4)
(44.7)
8.54
(217)
A
0.59
(15)
2.25
(57)
Optional mounting
bar shown
1.73
(44)
3.81
(97)
G 3/4"
2
(51)
8.32
(211.5)
1.22
(31) ø
Figure 38: Nortec EL Steam Humidifier, Small Housing
Dimensions are in inches, and values in brackets are in millimeters.
64
Product Specifications
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
7.16
(181.8)
2x 0.31
(8.0) ø
6.44
(163.5)
2.43
(61.8)
A
3.25
(82.4)
1.75
(44.7)
9.13
(232)
A
30.71
(780)
3.48
(88.5)
16.0
(406.5)
16.0
(406.5)
1.37
(35)
2.43
(61.8)
0.59
(15)
2.12
(54)
2.43
(61.8)
2.12
(54)
20.87
(530)
0.28
(7)
22.83
(580)
14.33
(364)
7.62
(193.5)
1.78
(45.0) ø
2.25
(57)
Optional mounting
bar shown
3.81
(97)
G 3/4"
1.73
(44)
2
(51)
12.66
(321.5)
1.22
(31) ø
Figure 39: Nortec EL Steam Humidifier, Medium Housing
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Product Specifications
65
20.5
(520.5)
16.5
(418.8)
6.44
2.43 (163.5)
(61.8)
A
A
A
3.25
(82.4)
1.75
(44.7)
9.13
(232)
A
4x 0.31
(8.0) ø
7.04
(178.8)
2x 1.78
(45.0) ø
10.37
(263.5)
0.28
(7)
39.37
(1000)
4.6
(117)
16.0
(406.5)
16.0
(406.5)
2.75
(70)
0.59
(15)
2.12
(54)
23.23
(590)
30.71
(780)
16.0
(406)
6.46
(164)
21.09
(535.8)
4.21
(107)
Optional mounting
bar shown
3.81
(97)
2x G 3/4"
1.73
(44)
2
(51)
12.67
(321.5)
16.06
(408)
2x 1.22
(31) ø
26.71
(678.5)
Figure 40: Nortec EL Steam Humidifier, Large Housing
66
Product Specifications
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
20.9
(530)
14.4
(365)
12
(304.8)
1.37
(35)
16.5
(418)
15.8
(400)
0.5
(12)
2.12
(54)
3.16
(80)
19.69
(500)
35.2
(893)
Drain connection
1.18 (30) ø
13.0
(329)
Primary power
9.0
(229)
3.6
(91)
Fill connection
½ NPT
1.6
(40)
14.5
(369)
2.8
(72)
Figure 41: Nortec EL Space Steam Humidifier, Small Housing
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Product Specifications
67
20.9
(530)
15.7
(400)
16.0
(406.5)
1.37
(35)
2.2
(56)
16.5
(418)
16.3
(415)
2.12
(54)
3.48
(89)
0.5
(12)
22.83
(580)
39.5
(1003)
14.9
(380)
Drain connection
1.18 (30) ø
Primary power
1.3
(32)
9.1
(232)
3.6
(91)
Fill connection
½ NPT
18.9
(479)
2.4
(62)
Figure 42: Nortec EL Space Steam Humidifier, Medium Housing
68
Product Specifications
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
A
Appendix
A.1
Installation Checklist
The following is a consolidated installation checklist that can be used in the commissioning of the unit:
Mounting
Unit installed in the correct location (according to "Location and Clearances" on page 20)?
Adequate clearance for servicing unit?
Mounting surface stable, and capable of supporting the full operating weight of the humidifier?
Unit level?
Unit secured properly?
Steam Line
Observed all best practices?
Steam line exceed maximum length specified in Table 6 on page 32?
Minimum bend radius of 12 in (300 mm) for steam hose, or 5× internal diameter for rigid pipes
maintained?
Steam line sized correctly?
Backpressure in the line combined with duct static pressure exceed 5.5 in H2O (1.37 kPa), or
10 in H2O (2.49 kPa) with the optional Fill Cup Extension?
Steam lines run straight up from the humidifier steam outlet for at least 12 in (300 mm) before bend?
Steam line have a constant minimum upslope of 2 in/12 in (10°), or a constant minimum downslope
of 1/2 in/12 in (2°)?
Steam lines do not reduce in diameter except, if required, at the steam distributor, and condensate
line installed just before the restriction?
Steam lines do not merge except at the steam distributor through a Condair adaptor?
Steam line does not sag or kink? Supported adequately? Any low points in line without condensate
trap?
If a steam hose is used, is it attached securely with clamps? Clamps secure without crushing steam
line?
Allowances for thermal expansion during operation, and shortening of the hose due to aging taken
into consideration?
Condensate Line
Local codes on drain water temperature requirements have been satisfied?
Condensate line from the steam distributor condensate port connected to the humidifier fill cup port,
or the drain?
Condensate lines installed at all low points, and at vertical transitions in the steam line?
Condensate lines in the steam line always connect to full-size "T" connectors?
Condensate traps have a minimum loop height of 8 in (200 mm) and installed at least 12 in (300 mm)
below the "T" connector or steam distributor?
Condensate traps from the blower pack have a loop height of 4 in (100 mm) and 2 in (50 mm) from
the steam adapter (for units with small steam adaptor)?
All condensate lines have a constant minimum downslope of 1 in/48 in (1.2°)?
Maximum distance between the condensate traps on long runs is 15 ft (4.5 m)?
Condensate traps primed with water?
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Appendix-A
69
Water Connections
Shutoff valve and union fitting installed in supply line?
Water supply piping minimum 1/2 in (13 mm) diameter, and made of copper, stainless steel or plastic
certified for drinking water systems?
Optional 5 μm water filter installed in the supply line close to the humidifier?
Water supply temperature 34-104°F (1-40°C)?
Water supply surge-free and pressure regulated to 30-80 psig (207-550 kPa)?
Leak-free water supply line?
Air gap funnel has a minimum diameter of 2-1/2 in (64 mm)?
Air gap and any other drain located away from the control cabinet in the humidifier?
Drain lines have a minimum internal diameter of 7/8 in (22 mm)?
Drain line have a constant minimum downslope of 1 in/48 in (1.2°) to funnel without touching its
sides or bottom?
Drain lines from large humidifiers with dual steam cylinders empty into separate open air gap funnels
before connecting to the drain? Combined drain line minimum 1.5 in (38 mm) ID?
All debris flushed from supply and drain lines?
Electrical Connections
Power supply meet the voltage and current requirements shown on the specification label (Figure 3
on page 13)?
Power supply have an external dedicated fused disconnect?
All wiring done according to the wiring diagram and instructions in this manual?
All cables fastened securely?
All cables free of tension and pass through cable glands or grommets?
Electrical installation meet the applicable national and local codes?
All door panels closed and fastened securely?
70
Appendix-A
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
B
Appendix
B.1
Commissioning Checklist
The Nortec EL steam humidifier must always be commissioned for the first time by a service technician from
your local Condair representative, by a Condair employee, or by personnel who are well trained and authorized
by the customer. It is the customer's responsibility to verify the qualifications of personnel.
The intent of the commissioning checklist is to verify that the humidification system has been installed according
to the installation manual.
Commissioning of the Nortec EL steam humidifier consists of two steps – an inspection of the site services and
the installation prior to start-up, and performance tests of the unit. Complete the "Pre-Start-Up Checklist" below and
"Performance Checklist" on page 74. Enter all notes and exceptions in the space provided on page 75. Retain this
copy in the installation manual, and submit a copy of the completed forms to your local Condair representative.
B.1.1
Pre-Start-Up Checklist
Inspect the site services and the installation, and fill out the form below. Note: When filling out the form leave
the checkbox un-checked if the item does not apply, or if the requirement is not satisfied.
Serial Number:
Model:
Tag:
Capacity:
Customer/Job:
Voltage and Phase:
Condair representative:
Customer
Address:
Site Ambient Conditions
Ambient temperature:
(Permissible range – 41-104 °F (5-40 °C))
Ambient humidity level:
(Permissible range – 5-95% RH, non-condensing)
Site Water Supply
Well water
City water
Softened water
(Not recommended for EL series)
Reverse osmosis (RO)
(Not permitted for EL series)
De-ionized water (DI)
(Not permitted for EL series)
Refer to Table 4 on page 19 for water quality requirements. Note: Run the water for approximately five minutes before performing the tests:
Site Water Quality
Measurement*
Conductivity (μS/cm):
Hardness (gpg):
Silica (ppm):
Chlorides (ppm):
pH level:
* Test sample must be collected as close as possible to the fill valve in the humidifier, so that the sample reflects the characteristics of the supply water entering the unit.
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Appendix-B
71
Site Water Supply, continued...
Humidifier Mounting
Note: For units with dual steam cylinders, check water supply to
each fill valve.
Refer to Figure 6 on page 21 for clearances.
Water supply pressure meets requirement:
(Permissible range – 30-80 psig (207-550 kPa)
Select checkbox, or enter measurement, as appropriate).
Water supply pipe sized correctly:
(Minimum 1/2 in (13 mm) diameter required).
Water supply temperature meets requirement:
(Permissible range – 34-104 °F (1-40 °C)
Select checkbox, or enter measurement, as appropriate).
Non-combustible mounting surface?
(Withstand temperatures 140-158 °F (60-70 °C))
Unit level?
Front clearance:
Left side clearance:
Right side clearance:
Ground clearance:
Overhead clearance:
Water supply piping material:
(Copper, stainless steel or plastic certified for drinking
water systems permitted).
Filter installed close to humidifier:
Steam Line(s)
Shutoff valve and union fitting installed:
Note: For units with dual steam cylinders, check steam line connected to each cylinder.
(5 μm – optional, but recommended)
No pressure surges:
(Surge protection device must be installed, if necessary).
All debris flushed from supply line:
No leakages in supply line:
Steam line diameter meets requirement:
(Refer to Table 6 on page 32 for steam line diameter).
Steam line piping material meets requirement:
(Copper (MED Type-L) or stainless steel (minimum DIN
1.4301) required).
Type of insulation:
Drainage
Humidifier drain pipe diameter meets
requirement:
Slope of steam line meets requirement:
(Minimum constant upslope of 2 in/12 in (10°), or minimum constant downslope of 1/2 in/12 in (2°) required).
(Must handle temperatures to 212 °F (100 °C)).
Steam line rises straight up minimum
12 in (300 mm) before first bend:
Steam lines do not reduce in diameter or
merge, except at steam distributor:
No restrictions/kinks in steam line:
Drain pipe sloped adequately:
Steam line fully supported, with no sags:
(Minimum 7/8 in (22 mm) diameter required).
Humidifier drain piping material meets
requirement:
(Minimum downslope of 1 in/48 in (1.2°) to air gap
funnel).
Air gap funnel size meets requirement:
(Minimum 2-1/2 in (64 mm) diameter required).
Drain pipe does not touch sides or bottom of air gap funnel:
Air gap funnel location does not permit
any rising steam to enter control cabinet:
Separate air gap funnels (for large units
with dual cylinders), and combined drain
size meets requirement:
All debris flushed from steam line:
Backpressure meets requirement:
(Maximum permissible static pressure and backpressure in steam line – 5.5 in H2O (1.37 kPa); or 10 in H2O
(2.49 kPa) with the optional fill cup extension)
Duct static pressure:
(Enter static pressure (if available), and if
positive or negative pressure).
(Drain lines from large units must empty into separate
open air gap funnels before connecting to the drain.
Combined drain line minimum 1.5 in (38 mm) ID).
Drainage rate if building drain meets
requirement:
(Minimum 2.3 gal/min (8.7 L/min) per steam cylinder
required).
Building drain piping material meets
requirement:
(Only copper or stainless steel permitted).
72
Appendix-B
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
Steam Line Condensate Drains
Controls
Note: Make sure all condensate drains meet these requirements.
Note: If control devices are installed, enter their locations below;
otherwise leave empty.
Slope of all condensate lines meets
requirement:
(Minimum constant downslope of 1 in/48 in (1.2°)
required).
Condensate lines connect to full-size Tee
connectors:
Diameter of condensate traps meets
requirement:
(Minimum 9 in (200 mm) required).
Condensate trap drop meets requirement:
Humidity controls location:
High limit switch location:
(Minimum 3× absorption distance from the distributor
required).
(Minimum 12 in (300 mm) below condensate Tee and
steam distributor required).
Condensate traps installed at all low
points, and horizontal-to-vertical transitions in steam line:
Condensate traps installed at regular
intervals on long runs exceeding 15 ft
(4.5 m):
Condensate lines have individual traps
before emptying into a common drain:
Condensate lines connect to:
Air proving switch location:
(Humidifier or drain)
No restrictions/kinks in condensate line:
All debris flushed from condensate line:
Condensate cooling installed, (if required
by local code):
All condensate traps primed:
Electrical Power Connections
Power supply meets voltage and current
requirements shown on specification
label:
Dedicated external fused disconnect
switch installed to local code:
(Fusing must not exceed the maximum current rating
shown on specification label).
Dedicated external non-fused disconnect
switch (if installed) located in vicinity of
humidifier:
Phase-to-phase voltage measurements:
All contactor screws torqued properly:
(Refer to label on contactor for correct torque value).
Proper grounding:
(Green wire must be connected to GND in the supply)
All wiring and connectors fastened
securely:
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Appendix-B
73
B.1.2
Performance Checklist
Complete the performance tests after inspecting the site services and the installation, then fill out the form below. Note: When filling out the form leave the checkbox un-checked if the item does not apply, or if the requirement is not satisfied. Enter all notes and exceptions in the space provided on page 75.
Preliminary
Distribution System
Note: For commissioning the distribution system itself, refer
to the individual commissioning checklist for the distribution
system.
Pre-start-up checklist completed:
Gas leakage test inside unit completed:
SAM-e
Check for water leaks inside unit completed:
Mini-SAM-e
Steam cylinder seated properly in its
base:
Blower Pack
Condensate trap inside the unit primed:
ASD/BSD/CSD
(Nortec GS CS/NX models only).
All access panels installed and fastened
securely:
Model:
Number of XSD units:
Distance to obstruction:
Start-Up
(Minimum 1× absorption distance required from the
distributor to first obstruction (coil/bend ) downstream).
Shutoff valve in water supply line open:
Distance to filter:
(Minimum distance between the distributor and filter
downstream – 1.5-2× absorption distance for class C
filter, and 2.5-3× absorption distance for sub-micron
particle filter).
Fill tests completed successfully:
Ignition safety shutoff test completed
successfully:
Manual gas shutoff valve open:
On/Off switch set to the On position:
Software version:
Controls
Select the type of signal input connected
to the channels of the low voltage terminal strip #1:
(Enter setpoint value (if applicable) in the field below
the checkbox).
CH 1:
CH 2:
On/Off:
If a second set of inputs is connected to
the channels of the low voltage terminal
strip #2 (on dual cylinder units running in
independent mode only), select the type
of signal input connected to the terminal
strip #2:
Demand Humidistat
On/Off Humidistat
Transducer
Digital Controls
Demand Humidistat
On/Off Humidistat
Transducer
Digital Controls
(modulating)
(modulating)
(modulating)
(modulating)
(Enter setpoint value (if applicable) in the field below
the checkbox).
CH 1:
CH 2:
On/Off:
Control signal configuration in the software matches inputs connected to unit:
74
Appendix-B
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
Controls, continued...
Sensed humidity less than setpoint value
(if transducer is used):
Security loop closed:
(On a dual cylinder unit running in series or parallel
mode, a jumper must be installed between the pins '2"
in the two low voltage terminal strips).
Blower pack loop closed:
Humidifier responds to control signal
interruption:
Notes
Enter notes and exceptions in the space below.
Notes:
Commissioned by:
Commissioning Date:
Company:
Clear
Form
Print
Form
Save
Form
To print the completed forms (if using an electronic version of the manual), select the Print Form button above. In the Print dialog box that
appears, select the page numbers under Pages to Print, and the Fit option under Page Sizing & Handling. Click Print.
To save the completed electronic forms, first select the Save Form button above, and select "Adobe PDF" from the Printer drop-down list in
the dialog box. Then select the page numbers, and click Print. Finally, enter a file name in the dialog box, and click Save.
Nortec EL
2582302_D_EN_1812_Nortec-EL_IM
Appendix-B
75
76
Appendix-B
2582302_D_EN_1812_Nortec-EL_IM
Nortec EL
Warranty
Condair Inc. and/or Condair Ltd. (hereinafter collectively referred to as THE COMPANY), warrant for a period
of two years after installation or 30 months from manufacturer’s ship date, whichever date is earlier, that
THE COMPANY’s manufactured and assembled products, not otherwise expressly warranted, are free from
defects in material and workmanship. No warranty is made against corrosion, deterioration, or suitability of
substituted materials used as a result of compliance with government regulations.
THE COMPANY’s obligations and liabilities under this warranty are limited to furnishing replacement parts
to the customer, F.O.B. THE COMPANY’s factory, providing the defective part(s) is returned freight prepaid
by the customer. Parts used for repairs are warranted for the balance of the term of the warranty on the
original humidifier or 90 days, whichever is longer.
The warranties set forth herein are in lieu of all other warranties expressed or implied by law. No liability
whatsoever shall be attached to THE COMPANY until said products have been paid for in full and then
said liability shall be limited to the original purchase price for the product. Any further warranty must be in
writing, signed by an officer of THE COMPANY.
THE COMPANY’s parts or materials that are considered consumables, including but not limited to: cylinders,
filters, nozzles, membranes, media, gaskets, O-rings, etc. are NOT covered by the warranty.
THE COMPANY makes no warranty and assumes no liability unless the equipment is installed in strict
accordance with a copy of the catalog and installation manual in effect at the date of purchase and by a
contractor approved by THE COMPANY to install such equipment.
THE COMPANY makes no warranty and assumes no liability whatsoever for consequential damage or damage resulting directly from misapplication, incorrect sizing or lack of proper maintenance of the equipment.
THE COMPANY makes no warranty and assumes no liability whatsoever for damage resulting from freezing
of the humidifier, supply lines, drain lines, or quality of the water used.
THE COMPANY retains the right to change the design, specification and performance criteria of its products
without notice or obligation.
THE COMPANY’s limited warranty on accessories, not of the companies manufacture, such as controls,
humidistats, pumps, etc. is limited to the warranty of the original equipment manufacturer from date of
original shipment of humidifier.
Extended Warranty
Extended warranties are available to purchase under the conditions listed above.
CONSULTING, SALES AND SERVICE:
U.S.A.
835 Commerce Park Drive,
Ogdensburg, NY 1366-2209
CANADA
2740 Fenton Road
Ottawa, ON, K1T 3T7
Tel: 1.866.667.8321
Fax: 613.822.7964
Email: [email protected]
Website: www.condair.com
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