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Troubleshooting
Specification
Install
Cylinder Replacement Procedure
Warranty
Maintenance
H.Control Wiring
Symptom Diagnosed
A.Procedure
Signal Light Status
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10-50
Page 83
2008-08-28
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Contents
NH SeriesTM
2522381-C
Installation Manual
NHTC / NHPC ELECTRODE STEAM HUMIDIFIER
LIABILITY NOTICE
SPECIFICATION LABEL LOCATION
PROPRIETARY NOTICE
COPYRIGHT NOTICE
10-30MAINTENANCE PROCEDURES
TABLE OF CONTENTS
10-10INSTALLATION PROCEDURES
2008-08-28
2008-08-28
10-40TROUBLESHOOTING
WARRANTY
10-50TECHNICAL
LIST OF FIGURES
2008-08-28
Figure
10-40TROUBLESHOOTING
LIST OF TABLES
10-10INSTALLATION PROCEDURE
2008-08-28
2008-08-28
10-00 INTRODUCTION
10-00
Page 1
10-00
Figure 1. NHTC
Page 2
2.PACKAGING
1.PRE-INSTALLATION
D. ACCESSORIES BOX
A.RECEIVING & UNPACKING EQUIPMENT
Figure 4. SAM-eDistributor Box
10-00
Figure 2. Humidifier Box
Figure 3. Distributor Box
3.PREINSTALLATION EQUIPMENT VERIFICATION
10-00
A.GENERAL
Figure 6. Typical NHTC Installation Sheet 1 of
10-00
Page 6
Figure 7. Typical NHTC Installation Sheet 2 of
10-00
Page 7
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10-00
Page
10-10 INSTALLATION
10-10
Page 9
B.MOUNTING WITH KEYHOLES
1.HUMIDIFIER INSTALLATION
A.LOCATION
C.MOUNTING WITH WALL BRACKET
DRAIN WATER FROM HUMIDIFIER CAN BE VERY HOT
D.WATER SUPPLY LINE
E.DRAIN LINE
F. STEAM RUNS AND CONDENSATE RETURNS
Figure 2. Mounting with Keyholes
10-10
Figure 1. Clearances and Operating Conditions
Figure 3. Mounting with Mounting Bracket
10-10
Figure 4. Drain Water and Supply Connection
Page 13
10-10
Table 1. Maximum Recommended Length of Steam Line
10-10
Page 15
10-10
Page 16
10-10
Dispersion Method
Figure 7. Primary Voltage Supply Wiring
10-10
Page 18
bDemand Signal Controls Installation
1Primary Voltage Supply Wiring to Humidifier
H.CONTROL WIRING
G.ELECTRICAL
10-10
Page
10-10
Page 21
Figure 10. Setpoint Versus Outdoor Temperature
I.OPTIONAL OUTDOOR TEMPERATURE RESET FUNCTION
10-10
Page 22
K.NETWORKING NHTC
J.HUMIDITY TRANSDUCER SIGNAL INSTALLATION
L.NORTEC ONLINE INSTALLATION
10-10
10-10
Page 24
10-10
Figure 12. Networking NHTCs Optional
Page 25
10-10
Page 26
10-20 OPERATION
10-20
Page 27
B.HUMIDIFIER START-UP
1.NHTC
A.NHTC COMPONENTS
C.BASIC STEAM PRODUCTION METHOD
Page 29
Table
NHTC/NHPC Components
10-20
10-20
Table 1. NHTC/NHPC Components cont
Page 30
Item Number
Figure 4. Drain Rate Versus Water
Figure 5. Capacity Setting and Cylinder Life
Figure 3. Humidifier Start-Up
Page 31
Figure 6. Basic Steam Production Method
Page 32
10-20
Table 2. Self-TestMessages
F.SOFTWARE FLOW CHART WITH DEFINITIONS
E.SOFTWARE INITIAL SELF-TEST
G.SELF-HELP
Figure 7. Software Flow Chart Sheet 1 of
Page 34
10-20
Figure 7. Software Flow Chart Sheet 2 of
Page 35
10-20
Figure 7. Software Flow Chart Sheet 3 of
Page 36
10-20
Figure 7. Software Flow Chart Sheet 4 of
Page 37
10-20
Figure 7. Software Flow Chart Sheet 5 of
Page 38
10-20
Figure 7. Software Flow Chart Sheet 6 of
Page 39
10-20
Figure 7. Software Flow Chart Sheet 7 of
Page 40
10-20
I.DOUBLE UNIT OPERATION
Table 3. Signal Light Status
H.SYSTEM MESSAGES AND LIGHTS
Page 41
10-20
Table 4. Status Messages with LED State
Page
NHTC Display Message
10-20
Page 43
Symptom Diagnosed
Probable Cause
B.SAM-eOPERATION
2.STEAM DISTRIBUTION
A.STEAM DISTRIBUTOR OPERATION
C.BLOWER PACK OPERATION
Page 45
Figure 10. Blower Pack Operation and Adjustments
Figure 9. SAM-eOperation
10-20
A.DIGITAL CONTROL OPERATION
NORTEC DOES NOT RECOMMEND USING THE DRY RELAY
3.CONTROLS AND REMOTE COMMUNICATION OPTIONAL
B.DIGITAL TRANSDUCER OPERATION
E.NORTEC ONLINE OPERATION
Relation to Demand Signal
D.NORTEC LINKS 2 OPERATION
Figure 12. Difference from Setpoint in
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10-20
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10-30 MAINTENANCE PROCEDURES
10-30
Page 49
DISCONNECT MAIN POWER BEFORE ANY SERVICING
MAINTENANCE PROCEDURES
A. MAINTENANCE
VOLTAGE COMPONENTS AND WIRING. ACCESS SHOULD BE
Page
D.COMPONENTS OF THE STEAM CYLINDER
Figure 1. Cylinder Components
10-30
Page 52
E.HOW TO REMOVE THE STEAM CYLINDER
Figure 2. Cylinder Removal Procedure
10-30
Page 53
F.MANDATORY CLEANING OF THE DRAIN VALVE
Figure 3. Drain Valve Maintenance
10-30
Page 54
G.HOW TO INSTALL THE REPLACEMENT CYLINDER
Figure 4. Cylinder Replacement Procedure
10-30
10-40 TROUBLESHOOTING
10-40
Page 55
B.STARTING POINT
1.TROUBLESHOOTING NH ELECTRODE STEAM HUMIDIFIERS
A.PREPARATION
SHOULD BE DONE BY QUALIFIED PERSONNEL C.NHTC/NHPC
10-40
Table 1. Troubleshooting Symptoms
Page 57
System
Table 2. Ensuring A Demand Signal
2. TROUBLESHOOTING DISTRIBUTORS
3.SAM-eTROUBLESHOOTING
CAN REMAIN VERY HOT DURING THE TROUBLESHOOTING
Page 59
4.BLOWER PACKS TROUBLESHOOTING
5.DIGITAL ON/OFF HUMIDISTAT SENSOR CALIBRATION
A.PROCEDURE
Symptom Diagnosed
Table 3. NH System Messages
Page 60
10-40
Probable Cause
Page 61
10-40
Corrective Action
Symptom Diagnosed
Table 3. NH System Messages cont
Page 62
10-40
Probable Cause
Page 63
10-40
Corrective Action
10-40
Page 64
Symptom Diagnosed
Table 3. NH System Messages cont
Probable Cause
Page 65
10-40
Corrective Action
Page 66
6.0-10VDIGITAL HUMIDISTAT SENSOR CALIBRATION
Table 4. Term Definitions
A.PROCEDURE
10-50 TECHNICAL
10-50
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A.HUMIDIFIER CONTROL INFORMATION
1.WIRING AND TERMINALS
Table 1. Controller and Sensor Specifications
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Page 69
B.NH WIRING
Figure 1. NHTC/NHPC Double Unit Wiring Diagram
10-50
Figure 2. NHTC/NHPC Wiring Diagram
Page 70
10-50
4 Start-UpProcedure
A.PRE-NORTECONLINE START UP CHECKLIST WIRING
3 Controls Wired
B. PRE-NORTECLINKS START-UPCHECKLIST
POWER
C. HUMIDIFIER MANDATORY PRE-STARTUP CHECKLIST
WIRING
Unit type
Remarks
2.START-UPPROCEDURE
1.PRELIMINARY
Page 73
MANDATORY CLEANING OF THE DRAIN VALVE
WHEN TO REPLACE THE CYLINDER
CYLINDER REPLACEMENT PROCEDURE
Page 74
Page 75
HOW TO INSTALL THE REPLACEMENT CYLINDER
EXTENDED SHUTDOWN
10-50
B.SAM-eSPARE PARTS
3.SPARE PARTS AND EXPLODED VIEWS
A.ASD, BSD, CSD DISTRIBUTOR
Figure 4. SAM-eExploded View and Spare Parts
C.NH SERIES HUMIDIFIER SPARE PARTS
Page 77
10-50
Table 2. NHTC/NHPC Plumbing Part List
10-50 Page 79
Table 2. NHTC/NHPC Plumbing Part List cont
Page 80
10-50
Table 3. NHTC/NHPC Electrical Parts List
10-50 Page 81
Table 3. NHTC/NHPC Electrical Parts List cont
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Page
10-50
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WARRANTY
CANADA
Cylinder Replacement Date MM/DD/YYYY
U.S.A
Walter Meier Climate USA Inc
