Nortec EL005, EL020, EL030, EL050, EL075 Installation Manual

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INSTALLATION MANUAL

Electrode Steam Humidifier Nortec EL Series

2582302_C_EN_1611

Humidication and Evaporative Cooling

IMPORTANT! Read and save these instructions. This manual to be left with the equipment.

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Thank you for choosing Nortec

Installation date (DD/MM/YYYY):

Commissioning date (DD/MM/YYYY):

Site:

Model:

Serial number:

Manufacturer

Nortec Humidity Ltd. 2740 Fenton Road, Ottawa, ON, Canada K1T 3T7 Tel. 1.866.NORTEC1, Fax 613.822.7964 nortec@humidity.com, www.humidity.com

Proprietary Notice

This document and the information disclosed herein are proprietary data of Nortec Humidity Ltd. Neither this document, nor the information contained herein shall be reproduced, used, or disclosed to others without the written authorization of Nortec Humidity Ltd., except to the extent required for installation, operation or maintenance of the customer's equipment.

Liability Notice

Nortec Humidity 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 Nortec Humidity Ltd.

Technical modication rights reserved.

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iiiContents

Nortec EL

2582302_C_EN_1611

Contents

1 Introduction 1

1.1 Before You Start! 1

1.2 General 1

2 For Your Safety 3

3 Receiving and Storage 5

3.1 Inspection 5

3.2 Storage and Transportation 5

4 Product Overview 7

4.1 General Description 7

4.2 Models Overview 8

4.3 Model Designation 8

4.4 Options 9

4.5 Accessories 10

5 Installation 11

5.1 General 11

5.2 Installation Overview 12

5.2.1 Typical Installation for Duct Humidication 12

5.2.2 Typical Installation for Direct Room Humidication 14

5.3 Site Requirements 15

5.4 Mounting the Humidier 16

5.4.1 Location and Clearances 16

5.4.2 Standard Mounting 18

5.4.3 Mounting Using Optional Mounting Bar 20

5.4.4 Mounting to OSHPD Seismic Requirements 22

5.4.5 Mounting Checklist 24

5.5 Steam Line Connections 24

5.5.1 Steam Distribution Using the Air Handling Unit 24

5.5.2 Steam Distribution Using the Blower Pack 24

5.5.2.1 Placement of Humidier 24

5.5.2.2 Remote-Mounted Blower Pack 25

5.5.3 Best Practices for Installing Steam and Condensate Lines 26

5.5.3.1 Common Steam and Condensate Line Installation Mistakes 34

5.5.4 Steam Connections Checklist 35

5.6 Water Connections 36

5.6.1 Water Connections Overview 36

5.6.2 Water Connection Requirements 38

5.6.3 Water Connections Checklist 38

5.7 Humidity Control Systems 39

5.7.1 Control Device Locations 39

5.7.2 Permissible Control Signal Inputs 39

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iv Contents

2582302_C_EN_1611 Nortec EL

5.8 Electrical Connections 40

5.8.1 General 40

5.8.2 Wiring Diagrams 41

5.8.2.1 Nortec EL Steam Humidier, Steam Cylinder A 41

5.8.2.2 Nortec EL Steam Humidier, Steam Cylinder B (Large Units Only) 43

5.8.3 External Connections 44

5.8.3.1 3-Phase Power Supply Connection 44

5.8.3.2 Single-Phase Power Supply Connection 45

5.8.3.3 External Safety Chain 46

5.8.3.4 Modulating Demand or Humidity Signal 47

5.8.3.5 Ohmic Humidity Controller (Passive) 48

5.8.3.6 24V On/Off Humidistat 49

5.8.3.7 External On/Off Input 49

5.8.3.8 Dual Steam Cylinders Control Wiring 50

5.8.3.9 Remote Relay PCB Connections 51

5.8.3.10 Accessory Relay PCB Connections 52

5.8.3.11 Modbus Connection 53

5.8.4 Connecting Multiple Units Using Linkup 54

5.8.5 Maximum External Fuse 55

5.8.6 Electrical Connections Checklist 57

6 ProductSpecications 59

6.1 Weights 59

6.2 Dimensions 60

A Appendix i

A.1 Installation Checklist i

B Appendix iii

B.1 Commissioning Checklist iii B.1.1 Pre-Start-Up Checklist iii B.1.2 Performance Checklist vi

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1Introduction

Nortec EL

2582302_C_EN_1611

1 Introduction

1.1 Before You Start!

Thank you for purchasing the Nortec EL steam humidier.

The Nortec EL steam humidier incorporates the latest technical advances and meets all recognized safety standards. Never-the-less, improper use of the Nortec EL steam humidier may result in danger to the user or third parties, and/or damage to property.

To ensure safe, proper and economical operation of the Nortec EL steam humidier, observe and comply with all information and safety instructions contained in this manual, as well as all relevant documentation of components of the installed humidication system.

If you have additional questions, contact your local Nortec representative. They will be glad to assist you.

1.2 General

Limitations

The subject of this manual is the Nortec EL steam humidier. 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 humidier, and is intended for well trained personnel who are suitably qualied 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 specic warning symbols may also be used in place of the general symbol.

DANGER!

The word "DANGER" in conjunction with the general danger symbol is used to provide safety instructions that, if neglected, may cause severe injury to personnel or even death. Other specic danger symbols may also be used in place of the general symbol.

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2 Introduction

2582302_C_EN_1611 Nortec EL

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 Nortec representative for a replacement copy.

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3For Your Safety

Nortec EL

2582302_C_EN_1611

2 For Your Safety

General

Every person who is tasked with the installation of the Nortec EL steam humidier 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 humidier must be observed and kept in a readable state.

PersonnelQualications

All procedures described in this manual must only be performed by personnel who are adequately qualied, well trained and are authorized by the customer.

For safety and warranty reasons, any activity beyond the scope of this manual must only be performed by qualied personnel authorized by Nortec.

All personnel working with the Nortec EL steam humidier must be familiar with, and comply with the appropriate regulations on workplace safety and prevention of accidents.

Intended Use

The Nortec EL steam humidier is intended exclusively for air humidication using a Nortec-approved steam distributor or blower pack within specied operating conditions (refer to the Operation and Maintenance Manual for details). Any other type of application, without the express written consent of Nortec, 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humidier:

DANGER! Risk of electric shock!

The NortecELsteamhumidier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 humidier must be connected to the mains only after all installa-

tion 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 humidier uses hot steam vapors for humidication. 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.

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4 For Your Safety

2582302_C_EN_1611 Nortec EL

Preventing Unsafe Operation

All personnel working with the Nortec EL steam humidier must immediately report to the customer any alterations to the unit that may affect safety, and securethehumidieragainstaccidentalpower-up.

ModicationstotheUnitProhibited

Modicationsarenotpermitted on the Nortec EL steam humidier without the express written consent

of Nortec.

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5Receiving and Storage

Nortec EL

2582302_C_EN_1611

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 Nortec representative within 48 hours of receipt of the goods. Nortec 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 9.

3.2 Storage and Transportation

Storage

Store the Nortec EL steam humidier in its original packaging inside a protected area that meets the following requirements until it is installed, or if it needs to be stored for an extended period of time:

– Room temperature: 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.

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6 Receiving and Storage

2582302_C_EN_1611 Nortec EL

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7Product Overview

Nortec EL

2582302_C_EN_1611

4 Product Overview

4.1 General Description

The Nortec EL steam humidier is an advanced electrode steam humidier with state-of-the-art features. It has an integrated controller which not only controls the humidier, but also allows the humidier 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 humidier 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 8. 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 congured 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 congured to 0-50% of humidier demand, and steam cylinder "B" to 50-100% of humidier demand. In parallel mode, the output capacity of each steam cylinder is congured to 0-100% of humidier demand.

In addition, up to six integrated controllers (for a maximum of 12 steam cylinders) can be set up in a "main-extension" conguration using Nortec's Linkup system to satisfy large humidication needs.

Figure 1:

Nortec EL Steam Humidier Model Sizes

1 Small model, steam cylinder "A" only 2 Medium model, steam cylinder "A" only 3 Large model, steam cylinder "B" 4 Large model, steam cylinder "A"

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8 Product Overview

2582302_C_EN_1611 Nortec EL

4.2 Models Overview

The Nortec EL steam humidier 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 Humidier Models

Housing

Size

Nortec EL

Model

110-

120V/1~

208V/1~

220-

240V/1~

277V/1~

380-

415V/1~

440-

480V/1~

550-

600V/1~

208V/3~

220-

240V/3~

380V/3~

440-

480V/3~

550-

600V/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)

S 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)

030 – – – – – – 30

(13.6)30(13.6)30(13.6)30(13.6)30(13.6)

M 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)

L 150* – – – – – – 150

(68)

150

(68)

150

(68)

150

(68)

150

(68)

200* – – – – – – 180

(82)

200

(91)

200

(91)

200

(91)

200

(91)

* These models have two steam cylinders.

4.3 Model Designation

The specication label on the side (and the underside) of the Nortec EL steam humidier shows its model number, serial number and ratings – refer to Figure 3 on page 9. The breakdown of the model number is shown in Figure 2. For other details of the specication label refer to the Operation and Maintenance Manual.

Figure 2:

Nortec EL 100 400V/3~Space

Product series:

Steam capacity (lb/h):

Model:

Blank = Duct Space = with Blower Pack RMBP = with power for remote-mounted Blower Pack

Heating voltage and phase:

Model Breakdown

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9Product Overview

Nortec EL

2582302_C_EN_1611

Figure 3:

Circuit Protection

MADE IN CANADA

HUMIDIFIER

LISTED

205X

MODEL:

VOLTS: AMPS: KW:

MAX:

XXXXXXXXXXXXXXXXXXXXXXXX

S/N:

XXXXXXX

XXXXXXXXXXXX

PHASE:

XXXX

HZ:

XXXXXX

XXXXX

XXXXXXXXX

XXX

DATE:

XXXXXXXXX

XXXXXXXX B

AMPS

Nortec EL Steam Humidier Specication Label

4.4 Options

Table 2 shows the list of options for the Nortec EL steam humidier. Contact your Nortec representative

for details.

Table 2: Nortec EL Options

Option Application

Mounting bar Provides two mounting bars which t into each other for wall mounting. One bar is fastened

to the humidier, 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 humidier housing.

Mounting rack Stand-alone rack for mounting the Nortec EL steam humidier.

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 ushing 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 ll cup so the humidier 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 humidier to handle a wider range of water supply quality.

BACnet MSTP BTL PCB to provide BTL certied BACnet MSTP. This option also enables full Master functionality

when using BACnet MSTP.

BACnet IP BTL PCB to provide BTL certied BACnet IP.

LonWorks board Supplementary board to connect the Nortec EL to a building management system using

LonWorks.

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10 Product Overview

2582302_C_EN_1611 Nortec EL

Option Application

Remote blower pack power kit

When a remote blower pack is being installed with the humidier, this option provides a transformer, fusing, and a terminal block inside the humidier to provide power to the remote blower pack. Without this option, a separate 110-120V supply must be provided for the remote blower pack.

4.5 Accessories

Table 3 shows the list of accessories for the Nortec EL steam humidier. Contact your Nortec representative

for details. To install and operate the accessories, refer to the instructions supplied with the accessories.

Table 3: Nortec EL Accessories

Accessory 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 humidication or use in conditioned spaces without a built-in air distribution system. The EL Space model has a blower pack mounted directly, the EL RMBP 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 humidier based on the sensed relative humidity. The humidistat can be installed in the conditioned space that is being humidied, or within the duct.

Digital RH transducer Input device used to communicate the relative humidity in a conditioned space or a duct to

the humidier.

Digital or analog high limit humidistat with either On/Off or modulating operation

Input device used to limit the output of the humidier 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 humidication 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.

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11Installation

Nortec EL

2582302_C_EN_1611

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.

Nortec does not accept any liability for installation of humidication equipment by unqualied personnel, or the use of equipment/parts that are not authorized by Nortec.

PersonnelQualications

All installation work must be performed only by licensed personnel authorized by the customer. It is the customer’s responsibility to verify qualications of the personnel.

Safety

Observe the following safety precautions:

DANGER! Risk of electric shock!

The Nortechumidier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 Nortec humidier must be connected to the mains only after all installation work

has been completed, checked for correct workmanship, and the door panels are closed and fastened securely.

CAUTION! Risk of damage to internal components from electrostatic discharge (ESD)!

Theelectroniccomponentsinsidethehumidier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.

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12 Installation

2582302_C_EN_1611 Nortec EL

5.2 Installation Overview

The Nortec EL humidier can use a steam distributor to distribute steam through air ducts – refer to

Figure 4. The humidier can also use a blower pack to distribute steam directly into a conditioned space

– refer to Figure 5 on page 14.

5.2.1 TypicalInstallationforDuctHumidication

Figure 4:

min. 10 ft (3m)

B or min. 8-10 ft (2.4-3m)

1, 2

2, 3

Typical Installation for Duct Humidication

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13Installation

Nortec EL

2582302_C_EN_1611

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 28). 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 28 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 humidier, as shown. A 2-1/2 in to 7/8 in (63.5 mm to 22 mm) reducer is ideal (Nortec 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 lter 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 B

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 Nortec HELP. The steam distributor capacity must equal or exceed the maximum capacity of the humidier.

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14 Installation

2582302_C_EN_1611 Nortec EL

5.2.2 TypicalInstallationforDirectRoomHumidication

Figure 5:

5, 6

Typical Installation for Direct Room Humidication

1 Blower pack, remote-mounted 2 Steam line (see Note 1 below) 3 Blower pack, built-on 4 High level On/Off humidistat (external safety chain) 5 Humidity sensor or humidistat (used for control of space humidity or high limit) 6 On/Off humidity control 7 Electrical disconnect, high voltage supply 8 Drain line (see Note 2 below) 9 Air gap with optional trap (see Note 3 below) 10 Water supply (see Note 4 below) 11 Condensate drain line (routed to oor drain, see Note 5 below) 12 Condensate drain connection through ll cup to steam cylinder (for remote blower pack)

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15Installation

Nortec EL

2582302_C_EN_1611

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5: For remote-mounted blower pack, the condensate line can be routed to either an external drain or to the ll cup of the humidier. 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 8 in (200 mm). The trap should be located a minimum of 12 in (30 cm) below the condensate port on the blower pack.

5.3 Site Requirements

In preparation for installation of the Nortec EL steam humidier, make sure that the following site requirements are satised. Report any discrepancies to the site engineer.

SteamandCondensateLines:

 When choosing the location of the humidier, install it as close as possible to the steam distributor

to minimize heat loss through the steam line.

 When possible, install the humidier below the steam distributor. Make sure that the selected loca-

tion permits proper routing of steam and condensate lines as described in "Best Practices for Installing

Steam and Condensate Lines" on page 26.

Mounting

 Allow adequate clearances around the humidier for ease of maintenance. Although the

Nortec EL steam humidier requires no side clearance, Nortec recommends minimum clearances of 6 in (150 mm) on the side. A 24 in (610 mm) clearance between the humidier and the ground is required. Observe all local and national installation codes. Nortec is not responsible for any installation code violations.

 Do not mount the humidier on hot surfaces, or surfaces that can freeze, or near vibrating compo-

nents, or on the oor. 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 humidier.

 The humidier should be mounted on a wall or other suitable surface that offers a sufciently high

load-bearing capacity. Refer to Table 15 on page 59 for operating weights.

 The Nortec EL steam humidier 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 humidier 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 humidier conguration supports approximately 330-670 μS/cm.

 The water supply should have a minimum ow 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 ltered to 5 μm (optional, but recommended).

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16 Installation

2582302_C_EN_1611 Nortec EL

 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 certied for drinking water

systems.

 A shutoff valve and a union tting 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 humidier. If using softened or partially softened water, contact your Nortec representative for assistance.

Drainage

 The humidier 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 humidier 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 humidier 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 humidier is to be installed should have a oor drain. However, if a oor 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 humidier should be adequate to match the full voltage and current draw

shown on the specication label of the humidier.

 The power supply must have an external dedicated fused disconnect switch. The fusing must not

exceed the maximum circuit protection indicated on the specication label. Refer to Figure 3 on page 9.

5.4 MountingtheHumidier

Refer to "Site Requirements" on page 15 for the location and mounting requirements for the Nortec EL steam humidier.

5.4.1 Location and Clearances

The location of the humidier depends largely on the steam distribution system. For the required minimum clearances for a Nortec EL steam humidier with a built-on blower pack refer to "Placement of Humidier" on

page 24; 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. Nortec does not accept responsibility for violations of the installation codes.

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17Installation

Nortec EL

2582302_C_EN_1611

Figure 6:

0 in (0 mm)

min. 24 in

(610 mm)

min. 12 in

(300 mm)

min. 36 in

(915 mm)

0 in (0 mm)

Nortec EL Humidier Suggested Clearances

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18 Installation

2582302_C_EN_1611 Nortec EL

5.4.2 Standard Mounting

Locate the Nortec EL humidier according to "Location and Clearances" on page 16, 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 19.

Figure 7:

Standard Mounting, Small or Medium Housing

1 Lag bolt, 1/4×2 in (×4)

Dimension

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)

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19Installation

Nortec EL

2582302_C_EN_1611

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 humidier can be installed on the bolts.

3. Remove the door panels from the humidier.

WARNING! Heavy object – risk of injury!

Thesmallhumidierweighs45lb(20kg),andthelargehumidierweights120lb(54kg).

Prevention: Use an appropriate lifting device, or request assistance to raise the humidier into

position.

4. Carefully raise and install the humidier onto the installed lag bolts.

5. Align the humidier 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.

Dimension

Housing Size

Large

X 16.0 in

(406 mm)

Y 16.75 in

(426 mm)

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20 Installation

2582302_C_EN_1611 Nortec EL

5.4.3 Mounting Using Optional Mounting Bar

Locate the Nortec EL humidier according to "Location and Clearances" on page 16, 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 21.

Figure 9:

Optional Mounting, Small or Medium Housing

1 Mounting bar 2 Flat washer (×3) 3 Lag bolt, 1/4×2 in (×3) 4 Screw, M6×10 (×1), supplied

Dimension

Housing Size

Small Medium

X 6.0 in

(152 mm)

8.0 in

(203 mm)

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21Installation

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2582302_C_EN_1611

Figure 10:

Optional Mounting, Large Housing

1 Mounting bar 2 Flat washer (×3) 3 Lag bolt, 1/4×2 in (×3) 4 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 at 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 humidier.

WARNING! Heavy object – risk of injury!

Thesmallhumidierweighs45lb(20kg),andthelargehumidierweights120lb(54kg).

Prevention: Use an appropriate lifting device, or request assistance to raise the humidier into

position.

4. Carefully raise the humidier into position, and hang it on the mounting bar.

5. Secure the humidier to the mounting bar with the M6×10 screw (supplied), and fasten securely.

6. Reinstall the door panels, and fasten them securely.

Dimension

Housing Size

Large

X 16.0 in

(406 mm)

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22 Installation

2582302_C_EN_1611 Nortec EL

5.4.4 Mounting to OSHPD Seismic Requirements

The Nortec EL is certied to OSHPD seismic requirements in its standard conguration (reference OSP0225-10); no additional kits are required. The humidier must be mounted as per the instructions in this section in order to fulll the seismic requirements.

Locate the Nortec EL humidier according to "Location and Clearances" on page 16, 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 23.

3. Install 3/8×2 in grade B5 (or equivalent) lag bolts and at 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 humidier can be installed on the bolts.

Figure 11:

Optional Seismic Mounting, Small or Medium Housing

1 Lag bolt, 3/8×2 in, grade B5 (×4) 2 Flat washer (×4) 3 3/4 in (20 mm) double-layer plywood sheet (or equivalent)

Dimension

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)

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23Installation

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2582302_C_EN_1611

Figure 12:

Optional Seismic Mounting, Large Housing

1 Lag bolt, 3/8×2 in, grade B5 (×6) 2 Flat washer (×6) 3 3/4 in (20 mm) double-layer plywood sheet (or equivalent)

4. Remove the door panels from the humidier.

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humidierweighs45lb(20kg),andthelargehumidierweights120lb(54kg).

Prevention: Use an appropriate lifting device, or request assistance to raise the humidier into

position.

6. Carefully raise and install the humidier onto the installed lag bolts.

7. Align the humidier with the help of a level, then tighten the lag bolts.

8. Install additional grade B5 (or equivalent) lag bolts and at 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.

Dimension

Housing Size

Large

X 16.0 in

(406 mm)

Y 16.75 in

(426 mm)

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24 Installation

2582302_C_EN_1611 Nortec EL

5.4.5 Mounting Checklist

Check the following to ensure that the humidier has been mounted correctly:

 Unit installed in the correct location (according to "Location and Clearances" on page 16)?

 Mounting surface stable, and capable of supporting the full operating weight of the humidier?

 Unit level?

 Unit fastened securely?

5.5 Steam Line Connections

Steam generated by the Nortec EL humidier 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 Nortec steam distributors or Nortec SAM-e steam distribution manifold.

Read "Best Practices for Installing Steam and Condensate Lines" on page 26 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Humidier

Figure 13 on page 25 and Table 5 show the minimum clearances required for installation of a

Nortec EL steam humidier with a built-on Nortec blower pack.

Table 5: Minimum Clearances

Blower Pack

Capacity

5 lb/h

(2.3 kg/h)

10 lb/h

(4.5 kg/h)

20 lb/h

(9kg/h)

30 lb/h

(13.6 kg/h)

50 lb/h

(22.7 kg/h)

75 lb/h

(34.0 kg/h)

100 lb/h

(45.4 kg/h)

Low Speed

Dimension "A" (minimum), Low speed 9 in

(0.23 m)

18 in

(0.46 m)

75 in

(1.91 m)

86 in

(2.19 m)

174 in

(4.42 m)

189 in

(4.81 m)

248 in

(6.3 m)

Dimension "B" (minimum), Low speed 12 in

(0.31 m)

48 in

(1.22 m)

84 in

(2.14 m)

High Speed

Dimension "A" (minimum), High speed 6 in

(0.16 m)

60 in

(1.53 m)

71 in

(1.81 m)

132 in

(3.36 in)

153 in

(3.89 m)

218 in

(5.54 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)

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.

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25Installation

Nortec EL

2582302_C_EN_1611

Figure 13: Clearance Requirements for

Nortec EL Humidier 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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26 Installation

2582302_C_EN_1611 Nortec EL

5.5.3 Best Practices for Installing Steam and Condensate Lines

Nortec 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) ex-

clusively, and use steam hoses for short distances only. Use original steam and condensate hoses from your local Nortec 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 28 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 humidier, 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 28 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 ll cup extension.

Note: With oversized steam lines the maximum length can be extended. Use Nortec steam hose for short distances only. When calculating the total equivalent length, refer also to Table 7 on page 28 for equivalent length of common ttings.

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 Nortec steam line reducer at the connection to the steam distributor only, and install a condensate line just before the restriction. Contact your local Nortec 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 Nortec adaptor specically de-

signed for that purpose, and only if the humidier steam cylinders operate in parallel.

– If using blower packs with large Nortec EL humidiers, 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 humidier 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 27.

– Use short lengths of steam hose to connect the steam line to the humidier or steam distributor.

Secure the steam hoses with clamps.

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27Installation

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2582302_C_EN_1611

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.

Figure 14:

12 in (300 mm)

2 in (50 mm)

12 in (300 mm)

½ in (12 mm)

Minimum Upslope Minimum Downslope

Steam Line Slope

– To minimize formation of condensation and maximize efciency, 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 humidier.

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:

• 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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28 Installation

2582302_C_EN_1611 Nortec EL

Table 6: Steam Line Recommendations

Model

Steam Line Over-sizedSteamLine**

Steam

Losses***

Maximum

Equivalent

Length

MED-L

Copper

Pipe

Diameter

Stainless Steel

(min. DIN 1.4301)

Pipe Diameter

Maximum

Equivalent

Length

MED-L

Copper

Pipe

Diameter

Stainless Steel

(min DIN 1.4301)

Pipe Diameter

EL005 7 ft

(2 m)

3/4 in

(20 mm)

7/8 in

× 0.049 wall

(22 mm

× 1.25 mm wall)

14 ft

(4 m)

1 in

(25 mm)

1-1/8 in

× 0.049 wall

(29 mm

× 1.25 mm wall)

0.06 lb/h/ft

(0.09 kg/h/m)

EL010 12 ft

(3.5 m)

24 ft

(7 m)

EL020 17 ft

(5 m)

34 ft

(10 m)

EL030 22 ft

(6.5 m)

44 ft

(13 m)

EL050 43 ft

(13 m)

1-1/2 in

(40 mm)

1-3/4 in

× 0.065 wall

(45 mm

× 1.65 mm

wall)

86 ft

(26 m)

2 in

(50 mm)

2 in

× 0.065 wall

(50 mm

× 1.65 mm

wall)

0.11 lb/h/ft

(0.18 kg/h/m)

EL075 EL100

47 ft

(14 m)

94 ft

(28 m)

EL150* EL200*

50 ft

(15 m)

1-1/2 in

(40 mm)

1-3/4 in

× 0.065 wall

(45 mm

× 1.65 mm wall)

100 ft

(30 m)

2 in

(50 mm)

2 in

× 0.065 wall

(50 mm

× 1.65 mm

wall)

Nortec Steam Hose

EL005-

EL030

10 ft

(3 m)

P/N 1328810 – 7/8 in (22 mm) 0.1 lb/h/ft

(0.15 kg/h/m)

EL050-

EL200

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 humidiers in parallel. ** The over-sized lines may require a reducer at the humidier and the steam distributor.

*** Based on 1 in (25 mm) insulated copper pipe.

Table 7: Approximate Equivalent Length of Atmospheric Steam Line Fittings

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)

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29Installation

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2582302_C_EN_1611

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 ll cup port on the top of the humidier, or to the building oor 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.

Figure 15:

12 in (300 mm)

2 in (50 mm)

12 in (300 mm)

½ in (12 mm)

Minimum Upslope Minimum Downslope

Condensate Drain Lines

WARNING!

Riskofsevereburnsfromhotuidsorsteam!

The condensate lines may be lled with hot uids or steam. Bare skin in contact with hot uids 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) Nortec 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 ow.

– 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.

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30 Installation

2582302_C_EN_1611 Nortec EL

Figure 16:

Installation Example – Steam Distributor 20 in (500 mm) Above Humidier

A Steam line must run minimum 12 in (300 mm) vertically before continuing on to the steam distributor. B 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°).

C The steam line must not exceed the length specied in Table 6 on page 28. The minimum bend radius is 12 in (300 mm) for a steam

hose, or 5× the internal diameter for rigid steam pipes.

D All condensate traps must have a minimum height of 8 in (200 mm).

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31Installation

Nortec EL

2582302_C_EN_1611

Figure 17:

Installation Example – Steam Distributor Less Than 20 in (500 mm) Above Humidier

C The steam line must not exceed the length specied in Table 6 on page 28. The minimum bend radius is 12 in (300 mm) for a steam

hose, or 5× the internal diameter for rigid steam pipes. D All condensate traps must have a minimum height of 8 in (200 mm). E Obstacle F Condensate line must connect into a full-size "T" connector installed at the lowest point in the steam line.

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32 Installation

2582302_C_EN_1611 Nortec EL

Figure 18:

Installation Example – Rigid Steam Pipe With Insulation

must have a constant minimum downslope of 1 in/48 in (1.2°).

C The steam line must not exceed the length specied in Table 6 on page 28. The minimum bend radius is 12 in (300 mm) for a steam

hose, or 5× the internal diameter for rigid steam pipes.

D All 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.

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33Installation

Nortec EL

2582302_C_EN_1611

Figure 19:

Installation Example – Remote-Mounted Blower Pack

A Steam line must run minimum 12 in (300 mm) vertically before continuing on to the blower pack. B All condensate traps must be minimum 12 in (300 mm) below the condensate outlet on the blower pack.

C The steam line must not exceed the length specied in Table 6 on page 28. The minimum bend radius is 12 in (300 mm) for a steam

hose, or 5× the internal diameter for rigid steam pipes. D All condensate traps must have a minimum height of 8 in (200 mm). E 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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34 Installation

2582302_C_EN_1611 Nortec EL

5.5.3.1 Common Steam and Condensate Line Installation Mistakes

Some common steam and condensate line installation mistakes are shown in Figure 20.

Figure 20:

2, 3

4, 6

2, 3

Common Steam and Condensate Line Installation Mistakes

1 The condensate trap is located less than the required minimum 12 in (300 mm) below the steam distributor. 2 The minimum bend radius of 12 in (300 mm) for the steam hose (or 5× the internal diameter for rigid pipes) is not maintained. 3 No condensate trap is installed at the vertical transition. 4 The minimum slope for steam and condensate lines is not maintained. 5 The steam line does not run straight up for the required minimum 12 in (300 mm) before continuing on to the steam distributor. 6 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.

7 Steam lines must not merge or reduce in diameter except at the steam distributor (only through a Nortec adaptor), and must have a

condensate line just before the restriction.

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35Installation

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2582302_C_EN_1611

5.5.4 Steam Connections Checklist

Check the following to ensure that the steam connections for the humidier have been installed correctly:

Steam Line

 Observed all best practices?

 Steam line exceed maximum length specied in Table 6 on page 28?

 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 humidier 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 Nortec 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 satised?

 Condensate line from the steam distributor condensate port connected to the humidier ll 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?

 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?

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5.6 Water Connections

Refer to "Site Requirements" on page 15 for the water supply and drain requirements.

Read "Water Connection Requirements" on page 38, and perform the water connections as shown in Figure 21

on page 36 and Figure 22 on page 37.

5.6.1 Water Connections Overview

Figure 21:

Water Supply and Drain Connections, Small and Medium Units

1 Drain canal (outlet un-threaded), 1-3/16 in (30 mm) O.D. 2 Hose clamp (supplied) 3 Flexible bent hose (supplied) 4 Drain line, minimum 7/8 in (22 mm) I.D. (not supplied) 5 Water supply line, minimum 1/2 in (13 mm) (not supplied) 6 Adaptor, 3/4 BSPP to 1/2 in NPT (supplied) 7 Fill valve (3/4 in BSPP plastic threads) 8 Air gap and optional trap (not supplied) 9 Shutoff valve (not supplied) 10 Filter, 5 μm (optional, but recommended) 11 Union tting (not supplied)

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2582302_C_EN_1611

Figure 22:

Water Supply and Drain Connections, Large Units

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2582302_C_EN_1611 Nortec EL

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 tting must be installed in the supply line

before the humidier.

– 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 certied for drinking water systems.

CAUTION! Risk of damage to the plastic threads!

Thethreadsonthellvalvearemadeofplastic.

Prevention: Hand-tighten the NPT adaptor to the ll valve.

– The (optional but recommended) water lter must be installed as close as possible to the humidier.

– 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 exible bent hose exiting the humidier 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 humidiers 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, ush the water supply and drain lines to clear out any debris in the

lines. Check the strainer in the ll 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 humidier have been installed correctly:

 Shutoff valve and union tting installed in supply line?

 Water supply piping minimum 1/2 in (13 mm) diameter, and made of copper, stainless steel or plastic

certied for drinking water systems?

 Optional 5 μm water lter installed in the supply line close to the humidier?

 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 humidier?

 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 humidiers 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 ushed from supply and drain lines?

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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.

Figure 23:

max

Δp

System Setup Schematic

1 On/Off humidistat, modulating humidistat, or humidity sensor 2 On/Off high limit humidistat, modulating humidistat, or humidity sensor 3 Air proving switch

Notes:

• 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 airow “dead-zones”.

• Locate the high limit humidistat or humidity sensor (2) downstream of the humidier’s distributor so that

it can sense a duct that is over-humidied. 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 humidier’s distributor so that it can sense

air ow (or lack thereof).

5.7.2 Permissible Control Signal Inputs

Table 8 shows the different permissible control signal inputs the Nortec EL steam humidier can handle.

Table 8: Permissible Control Signal Inputs

Humidity Control with External Con-

troller 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 (Mas-

ter, BTL), Lonworks

Humidistat (24 V On/Off)

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2582302_C_EN_1611 Nortec EL

5.8 Electrical Connections

Refer to the specication label in Figure 3 on page 9 for the electrical requirements.

Install the electrical connections according to the wiring diagram(s) (Figure 24 on page 41, and Figure 25

on page 43, as applicable) and the instructions for "External Connections" on page 44.

For connecting multiple Nortec EL humidiers, refer to "Connecting Multiple Units Using Linkup" on page 54.

5.8.1 General

Safety

The electrical installation work requires removal of the door panels in the humidier. Observe the following safety precautions:

DANGER! Risk of electric shock!

The Nortechumidierismainspowered.Livepartsmaybeexposedwhenthedoorpan- els are open. Touching live parts may cause severe injury or even death.

Prevention: The Nortec humidier must be connected to the mains only after all installation

work has been completed, checked for correct workmanship, and the door panels are closed and fastened securely.

CAUTION! Electrostatic discharge (ESD)!

Theelectroniccomponentsinsidethehumidier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.

• All electrical installation work must be performed only by a licensed electrician authorized by the customer. It is the customer’s responsibility to verify qualications 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.

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5.8.2 Wiring Diagrams

5.8.2.1 NortecELSteamHumidier,SteamCylinderA

Figure 24:

PEPESC2SC1NL1

INLET

SPARE/DRAIN

CONTACT.

CONT. SIGN.

GNDINV+

24V

10V

CONT.

DRAIN INLET

L1FU

L1SW

LEVEL SENS.

MAIN SUPPLY

MODULE B

PEP1NP

LIM. SIGN.

GNDIN

F3 4AT

SPARE

SWITCH

L1SC NSWL1SC NSWL1SW NSWL1SW

F1 1AT

COMM

HB OK

JP3

JP1

LEVEL

LOW 24V GND

CURRENT SENSOR

SC OK

HWS

BLOWER

IN24V

ON/OFF

IN24V

SPARE1 SPARE2

On/Off

Switch

Drain

Fill

D+GND D-

GND24V

D+GND D-

RS4852RS4851PWR IC

PRI

N.O. Blower Pack Air Proving switch

24 VAC

Sec. Loop

GND

CH 1

CH 2

10 VDC

GND

J16

J15

JP11

JP8

JP4

JP7

DISPLAY

ACC

RFB

TD RD GND

3.3V

COMM PORT

USB

DISPLAY

J22 LED

ETHERNET

SIM Card Main unit

CR2032

BAT

GND

J10

J12

GND

-+ GND

J14

GND

24V

SW1

Primary

Fuse

Option

Main Contactors

Main

Contactor

Steam Cylinder

Broken lines 3-phase

6-wire unit

Cylinder with Dual Contactor

Cylinder with Single Contactor

To Level Sensor

QC2

To Level Sensor

QC2

To Level Sensor

QC1

To Current Sensor

ModuleA(Three Phase)

Single Contactor

ModuleA(Three Phase)

Dual Contactor

Module A(Single Phase)

L1L2

DriverA

Driver B

QC1

QC2

To transformer (primary side)

Transformer

X13

X14

X15

X12

X11

To Connector

DRIVER

BOARD A

CONTROL BOARD

CYLINDER-A

To Level Sensor

QC1

Main

Contactor

SEC

24 VAC

YG GY

BGY

J19

J21

J17

J18

J23

J2J3

432121

Analog Out

100mA

Sensor Supply

Max. 60mA

Unit ON

Steam Service

Error

Remote BoardFault (option)

1 2

3 4 5 6 7 8

432121

Analog Out

100mA

Sensor Supply

Max. 60mA

FanA

Fan B

Flush B

FlushA

Accessory Board (option)

1 2

3 4 5 6 7 8

To Module B (double unit only)

To Terminal X1 in Module B (double unit only)

To Terminal X14 in Driver Board B (double unit only)

Wire Colors: R Red YYellow B Black BL Blue BR Brown GY Grey G Green O Orange

To Module B (double unit only)

Blower Pack Power Supply (for Space and RMBP units)208-600 V

110-120 VAC

slow blow

BP Loop

Wiring Diagram - Nortec EL Humidier, Steam Cylinder A (Module A)

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2582302_C_EN_1611 Nortec EL

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 identication (Module A: 0)

X0 Terminal block, supply voltage

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5.8.2.2 NortecELSteamHumidier,SteamCylinderB(LargeUnitsOnly)

Figure 25 shows the wiring diagram for large humidiers with a second steam cylinder (usually referred

to as Cylinder B).

Figure 25:

PEPESC2SC1NL1

INLET

SPARE/DRAIN

CONTACT.

CONT. SIGN.

GNDINV+

24V

10V

CONT.

DRAIN INLET

L1FU

L1SW

LEVEL SENS.

MAIN SUPPLY

MODULE B

PEP1NP

LIM. SIGN.

GNDIN

F3 4AT

SPARE

SWITCH

L1SC NSWL1SC NSWL1SW NSWL1SW

F1 1AT

COMM

HB OK

JP3

JP1

LEVEL

LOW 24V GND

CURRENT SENSOR

SC OK

HWS

BLOWER

IN24V

ON/OFF

IN24V

SPARE1 SPARE2

Drain

Fill

D+GND D-

GND24V

D+GND D-

RS4852RS4851PWR IC

SW1

Primary

Fuse

Option

Main Contactors

Main

Contactor

Steam Cylinder

Broken lines 3-phase

6-wire unit

Cylinder with Three Phase Dual Contactor

Cylinder with Three Phase Single Contactor

To Level Sensor

QC2

To Level Sensor

QC1

To Current Sensor

QC1

QC2

X13

X14

X15

X12

X11

To Connector

DRIVER

BOARD B

CYLINDER-B

YG GY

Connects to Terminal X1 in Driver Board A

Connects to Terminal X15 in Driver Board A

Wire Colors: R Red YYellow B Black BL Blue BR Brown GY Grey G Green O Orange

Connects to Module A(Terminal Block X0)

GND

24Vac

N.O. Blower Pack Air Proving switch

Blower Pack Power Supply (for Space and RMBP units)208-600 V

110-120 VAC

slow blow

NL NL

RRR

24 VAC

Sec. Loop

GND

CH 1

CH 2

10 VDC

GND

BP Loop

Wiring Diagram - Nortec EL Humidier, 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 identication (Module B: 1)

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5.8.3 External Connections

The different external connections to the Nortec EL steam humidier 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 humidier.

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 specication label – refer to Figure 3 on page 9.

All wiring must be in accordance with national and local electrical codes.

Figure 26:

External

L1L2L3

3-Phase Power Supply Connections

1 External fused disconnect switch 2 Terminal block, power supply (X0) 3 Optional internal primary fuse

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5.8.3.2 Single-PhasePowerSupplyConnection

Figure 27 shows the single-phase power supply connections for the Nortec EL steam humidier.

All wiring must be in accordance with national and local electrical codes.

Figure 27:

External

L1L2L3

Single-Phase Power Supply Connections

1 External fused disconnect switch 2 Terminal block, power supply (X0) 3 Optional internal primary fuse

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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 41 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 ll valve, and is intended as a safety precaution. To control the humidier with an on/off humidistat refer to "External On/

Off Input" on page 49 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-humidication 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.

Figure 28:

max

Δp

External

7 6

5 4 3 2

External Safety Chain Connections

1 Blower pack 2 High limit humidistat – highly recommended 3 Air proving switch 4 Jumper (installed if no devices connected to safety chain – not recommended) 5 Jumper (installed if the blower pack is not used)

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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 41 and Figure 29. The permissible control signal input values are shown in Table 8 on page 39.

Do not connect multiple modulating signals to the same modulating input on the humidier. 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 humidier 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".

Figure 29:

External

7 6

5 4 3 2

Modulating Demand or Humidity Signal Connection

1 Modulating demand or humidity sensor signal 2 Modulating demand or humidity sensor signal (additional)

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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 41 and Figure 30. The permissible control signal input values are shown in Table 8 on page 39.

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.

Figure 30:

External

JP1

10V24V

7 6

5 4 3 2

Ohmic Humidity Controller Connection

1 Ohmic humidity controller, 135-10kΩ

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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 41 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.

Figure 31:

External

JP1

10V24V

7 6

5 4 3 2

24V On/Off Humidistat Connection

1 24V On/Off humidistat

5.8.3.7 External On/Off Input

The humidier can also be controlled by an external On/Off input through connector X11 on the driver board – refer to Figure 24 on page 41.

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.

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5.8.3.8 Dual Steam Cylinders Control Wiring

The dual steam cylinders in the large model Nortec EL steam humidier can be congured 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.

Figure 32:

External

Inputs

LV LV

Dual Steam Cylinders Control Wiring, Series/Parallel Mode

1 Low voltage terminal strip A 2 Low voltage terminal strip B 3 Jumper wire (for parallel or series mode only)

Figure 33:

External

Inputs - Zone A Inputs- Zone B

LV LV

Dual Steam Cylinders Control Wiring, Independent Mode

1 Low voltage terminal strip A, Zone A 2 Low voltage terminal strip B, Zone B

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5.8.3.9 Remote Relay PCB Connections

The optional remote relay PCB (printed circuit board) on the Nortec EL steam humidier has the following four potential-free relay contacts for remote display of humidier 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 humidier

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 humidier and the status LED turns yellow in color. Note: The way this relay handles system warnings (all warnings or service warnings only) can be congured 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 humidier has power, and the On/Off switch is in the On position.

Figure 34:

INTERNAL

EXTERNAL

432121

Analog Out

Sensor Supply

Max. 60mA

Unit ON

SteamServiceError

12345678910

100mA

J2 on Control Board

Remote Relay PCB Connections

The remote relay PCB connects to the connector J2 on the Nortec EL control board.

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2582302_C_EN_1611 Nortec EL

5.8.3.10 Accessory Relay PCB Connections

The optional accessory relay PCB on the Nortec EL steam humidier 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 ushing 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 ushing 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.

Figure 35:

INTERNAL

EXTERNAL

432121

Analog Out

Sensor Supply

Max. 60mA

FanA

Fan BFlush BFlush A

12345678910

100mA

J3 on Control Board

Accessory Relay PCB Connections (Optional)

The accessory relay PCB connects to the connector J3 on the Nortec EL control board.

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5.8.3.11 Modbus Connection

The Nortec EL steam humidier 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 humidier 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 Nortec rep- resentative 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.

2. Install the jumper JP4 on the control board if the Nortec EL steam humidier is the rst or last unit in the network. Termination is generally not required if the network is less than 3280 ft (1000 m) in length.

Figure 36:

COMM PORT

JP11

JP8

JP4

JP7

DISPLAY

LED

BAT

+-+-+-

J17

J18

J22

J23

J21

J19

GND GND GND GND 24V

CR2032

GND 5V

3.3V

RDTD

SIM Card Main Unit

USB

Ethernet

J3 ACC J2 RFB

CONTROL BOARD

JP4

JP7

GND

ACC RFB

J12 J14J10

J2 J3

Modbus Connection on Nortec EL steam humidier

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 Signal Type Recommended Cable

Maximum Distance from

NortechumidiertoBMS

Modbus EIA-485, 2-wire 18-24 AWG shielded, twisted

pair, 120Ω *

2200 ft (670 m)

* Connect humidiers in a daisy chain to the Modbus RTU. Ground shield at on end only – either at the BMS or the humidier.

Page 58

54 Installation

2582302_C_EN_1611 Nortec EL

Table 10: Modbus Communication Parameters

Parameter Default Software Adjustable Range

Signal type 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 Even Odd, Even, None

Address 10 1-247

Time out 300 s 1-300 s

5.8.4 Connecting Multiple Units Using Linkup

The integrated controller in the Nortec EL steam humidier allows up to six integrated controllers (for a maximum of 12 steam cylinders) to be connected in a "main-extension" conguration using Nortec's Linkup system. All the humidiers 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 conguration 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 humidier 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 conguration in the control software.

Page 59

55Installation

Nortec EL

2582302_C_EN_1611

Figure 37:

LV LV LV

7 6

5 4 3 2

7 6

5 4 3 2

7 6

5 4 3 2

All inputs

JP11

JP8

JP4

JP7

BAT

+-+-+-

GND GND GNDGND 24V

CR2032

SIM Card Main Unit

CONTROL BOARD

ACC RFB

J12 J14J10

J2 J3

JP11

JP8

JP4

JP7

BAT

+-+-+-

GND GND GNDGND 24V

CR2032

SIM Card Main Unit

CONTROL BOARD

ACC RFB

J12 J14J10

J2 J3

JP11

JP8

JP4

JP7

BAT

+-+-+-

GND GND GNDGND 24V

CR2032

SIM Card Main Unit

CONTROL BOARD

ACC RFB

J12 J14J10

J2 J3

JP8

GND

J10

Multi-Unit Linkup Connections

1 Main unit (all control signals to unit) 2 Extension unit #1 (no control signals to unit) 3 Extension unit #X (no control signals to unit) 4 Jumper (on all extension units) 5 Termination jumper, JP8 (only on last unit in Linkup chain)

5.8.5 Maximum External Fuse

Table 11: Maximum External Fusing, Nortec EL Duct Single-Phase

Model

110-120V/1~ 208V/1~ 220-240V/1~ 277V/1~ 380-425V/1~ 440-480V/1~ 550-600V/1~

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)

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)

EL Duct 005 1.9 15.6 20 – – – – – – – – – – – – – – – – – –

EL Duct 010 – – – 3.7 18.0 25 3.7 15.6 20 3.7 13.5 20 3.7 9.0 15 3.7 7.8 15 3.7 6.2 15

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

EL Duct 030-200 – – – – – – – – – – – – – – – – – – – – –

Page 60

56 Installation

2582302_C_EN_1611 Nortec EL

Table 12: Maximum External Fusing, Nortec EL Duct 3-Phase

Model

208V/3~ 220-240V/3~ 380-415V/3~ 440-480V/3~ 550-600V/3~

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)

Maximum Output (kW)

Maximum Current (A)

Maximum External Disconnect (A)

EL Duct 005 – – – – – – – – – – – – – – –

EL Duct 010 – – – – – – – – – – – – – – –

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

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

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

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

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

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

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

Table 13: Maximum External Fusing, Nortec EL Space Single-Phase

Model*

110-120V/1~ 208V/1~ 220-240V/1~ 277V/1~ 380-415V/1~ 440-480V/1~ 550-600V/1~

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)

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)

EL Space 005 2.0 16.8 25 – – – – – – – – – – – – – – – – – –

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

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

EL Space 030-200 – – – – – – – – – – – – – – – – – – – – –

* Space or RMBP (remote blower pack powered by the humidier) conguration

Page 61

57Installation

Nortec EL

2582302_C_EN_1611

Table 14: Maximum External Fusing, Nortec EL Space 3-Phase

Model*

208V/3~ 220-240V/3~ 380-415V/3~ 440-480V/3~ 550-600V/3~

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)

Maximum Output (kW)

Maximum Current (A)

Maximum External Disconnect (A)

EL Space 005 – – – – – – – – – – – – – – –

EL Space 010 – – – – – – – – – – – – – – –

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

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

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

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

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

* Space or RMBP (remote blower pack powered by the humidier) conguration

5.8.6 Electrical Connections Checklist

Check the following to ensure that the electrical connections for the humidier have been installed correctly:

 Power supply meet the voltage and current requirements shown on the specication label (Figure 3

on page 9)?

 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?

Page 62

58 Installation

2582302_C_EN_1611 Nortec EL

This page intentionally left blank

Page 63

59Product Specications

Nortec EL

2582302_C_EN_1611

6 ProductSpecications

6.1 Weights

Table 15: Weights

Model Small Medium Large

EL 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)

EL Space Net weight 83 lb

(38 kg)

123 lb

(56 kg)

–

Operating weight 103 lb

(47 kg)

188 lb

(85 kg)

–

Page 64

60 Product Specications

2582302_C_EN_1611 Nortec EL

6.2 Dimensions

Figure 38: Nortec EL Steam Humidier

(123.8)

6.83

(173.5)

2.82

(71.7)

0.87

(22.0) ø

8.54

(217)

3.25

(82.4)

1.75

(44.7)

14.33 (364)

0.28 (7)

16.54 (420)

26.4 (670.5)

2.25 (57)

2.12

(54)

3.16

(80.2)

(304.8)

1.37 (35)

2.28

(57.6)

(304.8)

2.28

(57.6)

1.22

(31) ø

8.32

(211.5)

(51)

1.73

(44)

3.81

(97)

19.69

(500)

7.62 (193.5)

2.12

(54)

4.88

G 3/4"

2x 0.31

(8.0) ø

0.59

(15)

Optional mounting

bar shown

, Small Housing

Dimensions are in inches, and values in brackets are in millimeters.

Page 65

61Product Specications

Nortec EL

2582302_C_EN_1611

Figure 39:

G 3/4"

2x 0.31

(8.0) ø

7.16

(181.8)

6.44

(163.5)

2.43

(61.8)

9.13

(232)

3.25

(82.4)

1.75

(44.7)

1.78

(45.0) ø

14.33 (364)

0.28 (7)

20.87 (530)

30.71

(780)

0.59

(15)

2.25 (57)

2.12

(54)

1.37 (35)

16.0

(406.5)

3.48

(88.5)

22.83

(580)

7.62 (193.5)

2.12

(54)

2.43

(61.8)

16.0

(406.5)

2.43

(61.8)

1.22

(31) ø

(51)

1.73

(44)

3.81

(97)

12.66

(321.5)

Optional mounting

bar shown

Nortec EL Steam Humidier, Medium Housing

Page 66

62 Product Specications

2582302_C_EN_1611 Nortec EL

Figure 40:

2x G 3/4"

4x 0.31

(8.0) ø

2.43

(61.8)

6.44

(163.5)

16.5

(418.8)

20.5

(520.5)

9.13

(232)

3.25

(82.4)

1.75

(44.7)

7.04

(178.8)

21.09

(535.8)

0.28 (7)

30.71

(780)

16.0

(406)

39.37

(1000)

2.12

(54)

0.59

(15)

4.21

(107)

16.0

(406.5)

16.0

(406.5)

4.6

(117)

2.75 (70)

23.23

(590)

10.37

(263.5)

6.46

(164)

2x 1.78

(45.0) ø

2x 1.22

(31) ø

3.81

(97)

1.73

(44)

26.71

(678.5)

16.06 (408)

(51)

12.67

(321.5)

Optional mounting

bar shown

Nortec EL Steam Humidier, Large Housing

Page 67

63Product Specications

Nortec EL

2582302_C_EN_1611

Figure 41:

14.4 (365)

16.5 (418)

0.5 (12)

35.2 (893)

15.8 (400)

Drain connection

1.18 (30)

13.0 (329)

9.0

(229)

Fill connection ½ NPT

1.6

(40)

Primary power

3.6

(91)

2.8

(72)

14.5

(369)

20.9

(530)

3.16 (80)

(304.8)

1.37 (35)

19.69

(500)

2.12

(54)

Nortec EL Space Steam Humidier, Small Housing

Page 68

64 Product Specications

2582302_C_EN_1611 Nortec EL

Figure 42:

16.3 (415)

Drain connection

1.18 (30)

Fill connection ½ NPT

20.9

(530)

15.7

(400)

16.5

(418)

2.2

(56)

39.5

(1003)

0.5

(12)

14.9

(380)

1.3

(32)

Primary power

9.1

(232)

3.6

(91)

2.4

(62)

18.9

(479)

1.37 (35)

16.0

(406.5)

3.48 (89)

22.83

(580)

2.12

(54)

Nortec EL Space Steam Humidier, Medium Housing

Page 69

iAppendix-A

Nortec EL

2582302_C_EN_1611

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 16)?

 Adequate clearance for servicing unit?

 Mounting surface stable, and capable of supporting the full operating weight of the humidier?

 Unit level?

 Unit secured properly?

Steam Line

 Observed all best practices?

 Steam line exceed maximum length specied in Table 6 on page 28?

 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 humidier 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 Nortec 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 satised?

 Condensate line from the steam distributor condensate port connected to the humidier ll 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?

 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?

Page 70

ii Appendix-A

2582302_C_EN_1611 Nortec EL

Water Connections

 Shutoff valve and union tting installed in supply line?

 Water supply piping minimum 1/2 in (13 mm) diameter, and made of copper, stainless steel or plastic

certied for drinking water systems?

 Optional 5 μm water lter installed in the supply line close to the humidier?

 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 humidier?

 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 humidiers 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 ushed from supply and drain lines?

Electrical Connections

 Power supply meet the voltage and current requirements shown on the specication label (Figure 3

on page 9)?

 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?

Page 71

iiiAppendix-B

Nortec EL

2582302_C_EN_1611

B Appendix

B.1 Commissioning Checklist

The Nortec EL humidier must always be commissioned for the rst time by a service technician from your local Nortec representative, by a Nortec employee, or by personnel who are well trained and authorized by the customer. It is the customer's responsibility to verify the qualications of personnel.

The intent of the commissioning checklist is to verify that the humidication system has been installed according to the installation manual.

Commissioning of the Nortec EL humidier 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 vi. Enter all notes and exceptions in the space provided on page vii. Retain this

copy in the installation manual, and submit a copy of the completed forms to your local Nortec representative.

B.1.1 Pre-Start-UpChecklist

Inspect the site services and the installation, and ll out the form below. Note: When lling out the form leave the checkbox un-checked if the item does not apply, or if the requirement is not satised.

SerialNumber: Tag:

Model: Capacity: VoltageandPhase:

Customer/Job: Nortec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 15 for water quality requirements. Note: Run the water for approximately ve 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 ll valve in the humidier, so that the sample reects the characteristics of the supply water entering the unit.

Page 72

iv Appendix-B

2582302_C_EN_1611 Nortec EL

SiteWaterSupply,continued...

Note: For units with dual steam cylinders, check water supply to

each ll valve.

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).

Water supply piping material:

(Copper, stainless steel or plastic certied for drinking water systems permitted).

Filter installed close to humidier:

(5 μm – optional, but recommended)

Shutoff valve and union tting installed:

No pressure surges:

(Surge protection device must be installed, if necessary).

All debris ushed from supply line:

No leakages in supply line:

Drainage

Humidier drain pipe diameter meets requirement:

(Minimum 7/8 in (22 mm) diameter required).

Humidier drain piping material meets requirement:

(Must handle temperatures to 212 °F (100 °C)).

Drain pipe sloped adequately:

(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:

(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).

HumidierMounting

Refer to Figure 6 on page 17 for clearances.

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:

Steam Line(s)

Note: For units with dual steam cylinders, check steam line connected to each cylinder.

Steam line diameter meets requirement:

(Refer to Table 6 on page 28 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:

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).

Steam line rises straight up minimum 12 in (300 mm) before rst bend:

Steam lines do not reduce in diameter or merge, except at steam distributor:

No restrictions/kinks in steam line:

Steam line fully supported, with no sags:

All debris ushed 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 ll cup extension)

Duct static pressure:

(Enter static pressure (if available), and if positive or negative pressure).

Page 73

vAppendix-B

Nortec EL

2582302_C_EN_1611

Steam Line Condensate Drains

Note: Make sure all condensate drains meet these requirements.

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:

(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:

(Humidier or drain)

No restrictions/kinks in condensate line:

All debris ushed 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 specication label:

Dedicated external fused disconnect switch installed to local code:

(Fusing must not exceed the maximum current rating shown on specication label).

Dedicated external non-fused disconnect switch (if installed) located in vicinity of humidier:

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:

Controls

Note: If Nortec control devices are installed, enter their locations below; otherwise leave empty.

Nortec humidity controls location:

Nortec high limit switch location:

(Minimum 3× absorption distance from the distributor required).

Nortec air proving switch location:

Page 74

vi Appendix-B

2582302_C_EN_1611 Nortec EL

B.1.2 Performance Checklist

Complete the performance tests after inspecting the site services and the installation, then ll out the form below. Note: When lling out the form leave the checkbox un-checked if the item does not apply, or if the requirement is not satised. Enter all notes and exceptions in the space provided on page vii.

Distribution System

Note: For commissioning the distribution system itself, refer to the individual commissioning checklist for the distribution system.

SAM-e

Mini-SAM-e

Blower Pack

ASD/BSD/CSD

Model:

Number of XSD units:

Distance to obstruction:

(Minimum 1× absorption distance required from the distributor to rst obstruction (coil/bend ) downstream).

Distance to lter:

(Minimum distance between the distributor and lter downstream – 1.5-2× absorption distance for class C lter, and 2.5-3× absorption distance for sub-micron particle lter).

Preliminary

Pre-start-up checklist completed:

Gas leakage test inside unit completed:

Check for water leaks inside unit completed:

Steam cylinder seated properly in its base:

Condensate trap inside the unit primed:

(Nortec GS CS/NX models only).

All access panels installed and fastened securely:

Start-Up

Shutoff valve in water supply line open:

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 eld below the checkbox).

Demand Humidistat

(modulating)

On/Off Humidistat

Transducer

(modulating)

Digital Controls

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:

(Enter setpoint value (if applicable) in the eld below the checkbox).

Demand Humidistat

(modulating)

On/Off Humidistat

Transducer

(modulating)

Digital Controls

CH 1:

CH 2:

On/Off:

Control signal conguration in the software matches inputs connected to unit:

Page 75

viiAppendix-B

Nortec EL

2582302_C_EN_1611

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:

Humidier responds to control signal interruption:

Notes

Enter notes and exceptions in the space below.

Notes:

Commissioned by: Commissioning Date:

Company:

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, rst 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 le name in the dialog box, and click Save.

Page 76

viii Appendix-B

2582302_C_EN_1611 Nortec EL

Page 77

Warranty

Nortec Humidity Inc. and/or Nortec Humidity 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 (with the exception of the cylinder), 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, provided that the defective part(s) is returned freight prepaid by the customer. The replacement parts are warranted for the balance of the term of the warranty on the original humidier 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 ofcer of THE COMPANY.

THE COMPANY’s limited warranty on accessories, not manufactured by the COMPANY, such as controls, humidistats, pumps, etc., is limited to the warranty of the original equipment manufacturer from date of original shipment of humidier.

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 to the humidier, supply lines, drain lines, or steam distribution systems caused by freezing.

THE COMPANY reserves the right to change the design, specications and performance criteria of its products without notice or obligation.

Page 78

U.S.A.

835 Commerce Park Drive, Ogdensburg, NY 1366-2209

CANADA

2740 Fenton Road Ottawa, ON, K1T 3T7

Tel: 1.866.NORTEC1 Fax: 613.822.7964

Email: nortec@humidity.com Website: www.humidity.com

Consulting, Sales and Service: