Nortec NH Series Installation guide

Manual No. H-101

2006-09-15

NH

Series

ELECTRODE

STEAM HUMIDIFIER

Installation Manual

TM

Page ii

2006-09-15

PROPRIETARY NOTICE

This document and the information disclosed herein are proprietary data of AXAIR NORTEC LTD.

Neither this document nor the information contained herein shall be reproduced used, or disclosed to

others without the written authorization of AXAIR NORTEC LTD., except to the extent required for

installation or maintenance of recipient’s equipment. All references to the NORTEC name should be

taken as referring to AXAIR NORTEC LTD.

LIABILITY NOTICE

NORTEC does not accept any liability for installations of humidity equipment installed by unqualified

personnel or the use of parts/components/equipment that are not authorized or approved by

NORTEC.

COPYRIGHT NOTICE

RECORD OF REVISIONS

For each revision, put the revised pages in your manual and discard the superseded pages. Write the

revision number and revision date, date put in manual, and the incorporator’s initials in the applicable

columns on the Record of Revisions.

Revision

Number

Revision

Date

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In Manual By

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Revision

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In Manual By

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LIST OF EFFECTIVE PAGES

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Title

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List of Abbreviations/List of Symbols

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TABLE OF CONTENTS

Subject Page

10-00 INTRODUCTION

1. PREINSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

A. RECEIVING & UNPACKING EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2. PACKAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

A. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

B. HUMIDIFIER AND CONTROLS BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

C. DISTRIBUTOR BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

D. ACCESSORIES BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3. PREINSTALLATION EQUIPMENT VERIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

A. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

10-10 INSTALLATION PROCEDURES

1. HUMIDIFIER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

A. LOCATION & MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

B. WATER SUPPLY LINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

C. DRAIN LINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

D. STEAM RUNS AND CONDENSATE RETURNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

E. ELECTRICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

F. CONTROL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

G. OPTIONAL OUTDOOR TEMPERATURE RESET FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

H. HUMIDITY TRANSDUCER SIGNAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

I. NETWORKING NHTCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

J. NORTEC LINKS INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

K. NORTEC ONLINE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

2. STEAM DISTRIBUTORS INSTALLATION FOR THE ASD, BSD AND CSD . . . . . . . . . . . . . . . . . . . . . . . . .18

A. STEAM DISTRIBUTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

B. DISTRIBUTOR CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

C. DISTRIBUTOR LOCATIONS AND MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

D. MULTIPLE DISTRIBUTOR APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

E. LOCATION OF STEAM DISTRIBUTORS WITHIN AN AIR HANDLER . . . . . . . . . . . . . . . . . . . . . . . . .21

F. DISTRIBUTOR ABSORPTION DISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

G. TYPICAL APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

H. DISTRIBUTOR DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

3. SAM-E SHORT ABSORPTION MANIFOLD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

A. IN-DUCT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

B. OUTSIDE DUCT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

C. VERTICAL IN-DUCT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

D. DRAIN WATER COOLER OPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

4. BLOWER PACKS (BOBP, RMBP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

A. BLOWER PACKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

B. PRIMARY VOLTAGE CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

10-20 OPERATION

1. NHTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

A. NHTC COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

B. HUMIDIFIER START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

C. BASIC STEAM PRODUCTION METHOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

D. CYLINDER LIFE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

E. SOFTWARE INITIAL SELF-TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

F. SOFTWARE FLOW CHART WITH DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

G. SELF-HELP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

H. SYSTEM MESSAGES AND LIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

I. DOUBLE UNIT OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

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Subject Page

2. STEAM DISTRIBUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

A. STEAM DISTRIBUTOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

B. SAM-E OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

C. BLOWER PACK OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

3. CONTROLS AND REMOTE COMMUNICATION (OPTIONAL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

A. DIGITAL CONTROL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

B. DIGITAL TRANSDUCER OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

C. REMOTE CONNECTIONS (OPTIONAL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

D. NORTEC LINKS OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

E. NORTEC ONLINE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

10-30 MAINTENANCE PROCEDURES

1. NH ELECTRODE STEAM HUMIDIFIERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

A. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

B. WHEN TO REPLACE THE STEAM CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

C. EXTENDED SHUT-DOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

D. COMPONENTS OF THE STEAM CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

E. HOW TO REMOVE THE STEAM CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

F. MANDATORY CLEANING OF THE DRAIN VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

G. HOW TO INSTALL THE REPLACEMENT CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

10-40 TROUBLESHOOTING

1. TROUBLESHOOTING NH ELECTRODE STEAM HUMIDIFIERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

A. PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

B. STARTING POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

C. NHTC/NHPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2. TROUBLESHOOTING DISTRIBUTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

A. TROUBLESHOOTING ATMOSPHERIC DISTRIBUTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3. SAM-E TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

A. PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

4. BLOWER PACKS TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

A. PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

5. DIGITAL ON/OFF HUMIDISTAT SENSOR CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

A. PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

6. 0-10V DIGITAL HUMIDISTAT SENSOR CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

A. PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

10-50 TECHNICAL

1. WIRING AND TERMINALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

A. HUMIDIFIER CONTROL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

B. OPTIONAL WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

C. NH WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2. CHECK LISTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

A. PRE-NORTEC ONLINE START UP CHECKLIST WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

B. PRE-NORTEC LINKS START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

C. HUMIDIFIER MANDATORY PRE-START UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

D. HUMIDIFIER MANDATORY START-UP CHECKLIST AND QUICK REFERENCE . . . . . . . . . . . . . . . .8

E. PERIODIC MAINTENANCE CHECKLIST AND QUICK REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . .9

3. SPARE PARTS AND EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

A. ASD, BSD, CSD DISTRIBUTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

B. SAM-E SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

C. NH SERIES HUMIDIFIER SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

WARRANTY

10-00

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LIST OF FIGURES

Figure Page

10-00 INTRODUCTION

Figure 1. NHTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Figure 2. Humidifier Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Figure 3. Distributor Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Figure 4. SAM-e Distributor Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Figure 5. Remote Mounted Blower Pack Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Figure 6. Typical NHTC Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

10-10 INSTALLATION PROCEDURES

Figure 1. Clearances and Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Figure 2. Mounting with Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Figure 3. Water Drain and Supply Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Figure 4. Steam Run and Condensate Return Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Figure 5. Primary Voltage Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Figure 6. On-Off Control Guidelines and Low Voltage Terminal Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Figure 7. NORTEC Control Guidelines and Wiring (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Figure 8. Setpoint Versus Outdoor Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Figure 9. NORTEC Humidity Transducer Guidelines and Wiring (Optional) . . . . . . . . . . . . . . . . . . . . . . . . .14

Figure 10. Networking NHTCs (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Figure 11. NORTEC Links Installation Guidelines (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Figure 12. NORTEC OnLine Installation Guidelines (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Figure 13. Levelling the Distributor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Figure 14. Single Steam Distributor Installation – Minimum Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Figure 15. Multiple Distributor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Figure 16. Cutting Duct For Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Figure 17. Best Location for Multiple Steam Distributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Figure 18. Roof Top Units 2-20 Tons – Typical Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Figure 19. Small Units On Residential Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Figure 20. SAM-e Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Figure 21. Steam Tube Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Figure 22. Top Steam Tube Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Figure 23. Adjustable Mounting Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Figure 24. Typical SAM-e Duct Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Figure 25. Outside Duct Mounting Cover Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Figure 26. Vertical Duct Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Figure 27. Drain Water Cooler Option Installation with SAM-e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Figure 28. NH Series Humidifier With Built-On Blower Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Figure 29. NH Series With Remote Mounted Blower Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

10-20 OPERATION

Figure 1. NHTC Components (Front View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Figure 2. NHTC Components (Side View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Figure 3. Humidifier Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Figure 4. Drain Rate Versus Water Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Figure 5. Capacity Setting and Cylinder Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Figure 6. Basic Steam Production Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Figure 7. Software Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Figure 8. Steam Distributor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Figure 9. SAM-e Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Figure 10. Blower Pack Operation and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Figure 11. NORTEC Digital Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Figure 12. Difference from Setpoint in Relation to Demand Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Figure 13. Duct and Wall Mounted Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Figure 14. NORTEC OnLine Status Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

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Figure Page

10-30 MAINTENANCE PROCEDURES

Figure 1. SMART Cylinder Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Figure 2. Cylinder Removal Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Figure 3. Drain Valve Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 4. Cylinder Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

10-50 TECHNICAL

Figure 1. NORTEC Links Supplementary Wiring (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Figure 2. NORTEC OnLine Supplementary Wiring (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Figure 3. NHTC/NHPC Double Unit Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Figure 4. NHTC/NHPC Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Figure 5. Distributor Exploded View and Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Figure 6. SAM-e Exploded View and Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Figure 7. NHTC/NHPC Plumbing Compartment Exploded View and Spare Parts . . . . . . . . . . . . . . . . . . . . .12

Figure 8. NHTC/NHPC Electrical Compartment Exploded View and Spare Parts . . . . . . . . . . . . . . . . . . . . .15

LIST OF TABLES

Table Page

10-10 INSTALLATION PROCEDURES

Table 1. Maximum Recommended Length of Steam Runs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Table 2. Steam Line Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Table 3. Recommended Material and Size for Steam Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Table 4. Recommended Condensate Line at Distributor(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Table 5. Equivalent Length Elbow and T-Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Table 6. Humidifier and Distributor Inlet/Outlet Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Table 7. Ceiling and Frontal Clearances for Blower Packs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

10-20 OPERATION

Table 1. NHTC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Table 2. Self-Test Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Table 3. Signal Light Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Table 4. Status Messages with LED State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Table 5. NHTC NORTEC Links Variable Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

10-40 TROUBLESHOOTING

Table 1. Troubleshooting Symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Table 2. Ensuring A Demand Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Table 3. NH System Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Table 4. Term Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

10-50 TECHNICAL

Table 1. Controller and Sensor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Table 2. NHTC/NHPC Plumbing Part List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Table 3. NHTC/NHPC Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

LIST OF ABBREVIATIONS

Term Definition Term Definition

Page viii

2006-09-15

Caution is an operation or maintenance

procedure or condition that can cause

damage to the equipment.

Danger is an operation or condition that

can cause an extreme, violent and

continuous hazard to life.

Warning is an operation or maintenance

procedure or condition that can cause

injury or death.

Electrical work to be carried out by a

licenced electrician.

Plumbing work to be carried out by a

licenced plumber.

Specifies the tools that are required.

°C degrees Celsius

°F degrees Fahrenheit

AHU air handling unit

ASD Model A Steam Distributor

BMS Building Management

System

BOBP Built-On Blower Pack

BP blower pack

BSD Model B Steam Distributor

C/C cooling coil

cm centimeter

CSD Model C Steam Distributor

dia. diameter

DWC drain water cooler

DWSP drain water sump pump

FOB Free on board

ft feet, foot

ft/min feet per minute

GND ground

GPG grains per gallon

H/C heating coil

hout humidity out

Hz hertz

I/O input/output

in. inch

kg/h kilogram per hour

lbs/hr pounds per hour

LCD liquid crystal display

LED light emitting diode

m meter

m/min meters per minute

mA milliamps

max. maximum

min. minimum

mm millimetre

mV millivolt

NH NORTEC Humidifier

NHPC NORTEC Humidifier Partial

Control

NHTC NORTEC Humidifier Total

Control

NPT National Pipe Thread

OD outside diameter

Otemp outside temperature

PCB printed circuit board

psig pounds-force per square inch gauge

rh relative humidity

RMBP Remote Mounted Blower

Pack

SAM-e Short Absorption

Manifold-enhanced

SD Steam distributor

UNC Unified coarse thread

VA volt ampere

VAC volts alternating current

VDC volts direct current

WC water column

LIST OF SYMBOLS

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10-00

INTRODUCTION

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Figure 1. NHTC

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INTRODUCTION

1. PREINSTALLATION

A. RECEIVING & UNPACKING EQUIPMENT

(1) Check packing slip to ensure ALL material has been delivered.

(2) All material shortages are to be reported to NORTEC within 48 hours from receipt of

goods. NORTEC assumes no responsibility for any material shortages beyond this

period.

(3) Inspect shipping boxes for damage and note damages on shipping waybill accordingly.

(4) After unpacking, inspect equipment for damage and if damage is found, notify the

shipper promptly.

(5) All NORTEC products are shipped on an FOB factory basis. Any and all damage,

breakage or loss claims are to be made directly to the shipping company.

2. PACKAGING

A. GENERAL

(1) The equipment packaging is standardized in that each box in the shipment will always

have the same contents. The following paragraphs identify the contents of each box.

B. HUMIDIFIER AND CONTROLS BOX

(1) The typical equipment found in the humidifier and controls box is shown in Figure 2.

The contents of the box are listed on the box. If controls are ordered they will be listed

and small accessories that fit into the box will also be listed on the box.

C. DISTRIBUTOR BOX

(1) Depending on the equipment ordered any of the following distributor box configurations

may be received:

(a) For equipment received if an ASD, BSD, CSD distributor(s) is ordered refer to

Figure 3.

(b) For equipment received if a SAM-e distributor is ordered refer to Figure 4.

(c) For equipment received if a RMBP is ordered refer to Figure 5.

D. ACCESSORIES BOX

(1) Additional accessories such as DWC, DWSP, Filter, and Fill cup extension kits are

shipped in a separate box. Smaller accessories that would fit in the humidifier box are

put in the humidifier box and the box is identified as containing such.

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2006-09-15

Figure 3. Distributor Box

Figure 4. SAM-e Distributor Box Figure 5. Remote Mounted Blower Pack Box

Figure 2. Humidifier Box

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3. PREINSTALLATION EQUIPMENT VERIFICATION

A. GENERAL

(1) Ensure that available voltage and phase corresponds with humidifier voltage and

phase as indicated on humidifier’s specification label.

(2) Ensure that the dedicated external fuse disconnect is of sufficient size to handle the

rated amps as indicated on the specification label. Refer to local codes.

(3) Report any discrepancy immediately to the site engineer.

(4) Location and mounting is described in Chapter 10-10.

(5) Typical installation (See Figure 6.) shows the references to the appropriate chapter of

the manual.

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Figure 6. Typical NHTC Installation (Sheet 1 of 2)

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Figure 6. Typical NHTC Installation (Sheet 2 of 2)

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10-10

INSTALLATION

PROCEDURES

10-10

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INSTALLATION PROCEDURES

1. HUMIDIFIER INSTALLATION

A. LOCATION & MOUNTING

(1) NH Series humidifiers are designed to mount on a suitable wall or vertical surface. Do

not sit on floor due to clearances required for plumbing, electrical, and control

entrances. The clearance dimensions shown in this manual are for reference only and

are the minimum required for maintenance of the humidifier. Local and National Codes

should be consulted prior to final location and installation of the humidifier. NORTEC

cannot accept responsibility for installation code violations. (See Figure 1.)

(2) If possible, DO NOT locate humidifier any further than absolutely necessary from

steam distributor location as net output will be reduced as a result of heat loss through

steam line. (Refer to Engineering Manual, H-100, Chapter 10-10.)

(3) Wall mounting bracket provided should be securely attached horizontally with open

edge upwards, using field-supplied fasteners. (See Figure 2.)

(4) If humidifiers are mounted on a roof, a thermostatically ventilated weatherproof cabinet

should be used. Consult factory.

B. WATER SUPPLY LINE

(1) All water supply and drain line connections should be installed in accordance with local

plumbing codes.

(2) For installation details see Figure 3.

Figure 1. Clearances and Operating Conditions

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2006-09-15

C. DRAIN LINE

CAUTION

DRAIN WATER FROM HUMIDIFIER CAN BE VERY HOT.

(1) The drain line should not end in a sink used frequently by personnel, or where plumbing

codes prohibit it. Route to a floor drain or equivalent for safety reasons.

(2) For installation details see Figure 3.

D. STEAM RUNS AND CONDENSATE RETURNS

(1) Tables 1 through 5 indicate what material and recommended length to use when

installing atmospheric steam lines. The lengths mentioned are equivalent feet and

therefore the full length of tubing with the addition of equivalent feet of elbows and tees.

(2) Figure 4 illustrates the guidelines for installation, routing and trapping of steam runs

and condensate returns.

(3) Table 6 indicates steam outlet size of humidifier and steam inlet size of distributors.

Figure 2. Mounting with Mounting Bracket

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Figure 3. Water Drain and Supply Connection

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Nortec NH Series Installation guide

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