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Nortec NH Series Page 64, 10-40, NH System Messages cont, NHTC Display Message, LED state

Models: NH Series

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Table 3. NH System Messages (cont)

NHTC Display Message	LED state	System Action	Symptom Diagnosed

W27: Safety loop instability	YEL	The safety loop is interrupting	A security control is causing the safety
		humidifier operation.	loop to switch on and off too rapidly.

W28: demand signal instability	YEL	The demand signal is swinging	The demand signal is unstable.
		from low demand to high
		demand too quickly.

W29: limit signal instability	YEL	The limit signal is swinging from	The limit signal is unstable.
		low demand to high demand too
		quickly and the humidifier
		cannot respond.

W30: Modbus remote disable	YEL	The humidifier is being	The humidifier has been disabled by a
		controlled via the network, not	network message.
		locally.

W43: Keep warm active	YEL	This is a customer selectable	The humidifier is in standby mode.
		feature to keep the cylinder	The cylinder may energize at any
		water warm.	time.

W44: Demand signal short	YEL	The cylinder automatically	The demand signal is cycling on and
cycling		reduces the humidifier output to	off too frequently.
		stabilize operation.

W45: safety loop short cycling	YEL	The cylinder automatically	The demand signal is cycling on and
		reduces the humidifier output to	off too frequently.
		stabilize operation.

W46: RH high warning	YEL	An alarm indication is	RH levels higher than the limit set
		generated.	have been detected. The humidifier
			should not be operational with this
			warning activated.

W47: RH low warning	YEL	The humidifier is operating and	RH levels lower than the limit set have
		an alarm indication is	been detected. The humidifier should
		generated.	be operational with this warning
			activated.

W49: wrong cylinder installed	YEL	An alarm indication is	The cylinder installed is not the
		generated.	recognized type for the humidifier.

E50: Modbus Timeout	RED	Systems shuts down.	Time window for Modbus has elapsed.

10-40

Page 64 2008-08-28

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Nortec NH Series Page 64, 10-40, NH System Messages cont, NHTC Display Message, LED state, System Action

Contents

NHTC / NHPC ELECTRODE STEAM HUMIDIFIER 2522381-CInstallation Manual NH SeriesTMCOPYRIGHT NOTICE SPECIFICATION LABEL LOCATIONPROPRIETARY NOTICE LIABILITY NOTICE2008-08-28 TABLE OF CONTENTS10-10INSTALLATION PROCEDURES 10-30MAINTENANCE PROCEDURES10-50TECHNICAL 10-40TROUBLESHOOTINGWARRANTY 2008-08-28Figure LIST OF FIGURES2008-08-28 2008-08-28 LIST OF TABLES10-10INSTALLATION PROCEDURE 10-40TROUBLESHOOTING2008-08-28 Page 1 10-00 INTRODUCTION10-00 Page 2 10-00Figure 1. NHTC A.RECEIVING & UNPACKING EQUIPMENT 1.PRE-INSTALLATIOND. ACCESSORIES BOX 2.PACKAGINGFigure 3. Distributor Box 10-00Figure 2. Humidifier Box Figure 4. SAM-eDistributor BoxA.GENERAL 3.PREINSTALLATION EQUIPMENT VERIFICATION10-00 Page 6 Figure 6. Typical NHTC Installation Sheet 1 of10-00 Page 7 Figure 7. Typical NHTC Installation Sheet 2 of10-00 Page 8 THIS PAGE INTENTIONALLY LEFT BLANK10-00 Page 9 10-10 INSTALLATION10-10 C.MOUNTING WITH WALL BRACKET 1.HUMIDIFIER INSTALLATIONA.LOCATION B.MOUNTING WITH KEYHOLESF. STEAM RUNS AND CONDENSATE RETURNS D.WATER SUPPLY LINEE.DRAIN LINE DRAIN WATER FROM HUMIDIFIER CAN BE VERY HOTFigure 3. Mounting with Mounting Bracket 10-10Figure 1. Clearances and Operating Conditions Figure 2. Mounting with KeyholesPage 13 10-10Figure 4. Drain Water and Supply Connection Table 1. Maximum Recommended Length of Steam Line 10-10Page 15 10-10Page 16 10-10Dispersion Method 10-10Page 18 Figure 7. Primary Voltage Supply Wiring10-10 G.ELECTRICAL 1Primary Voltage Supply Wiring to HumidifierH.CONTROL WIRING bDemand Signal Controls InstallationPage 20 10-10Page 21 10-10Page 22 I.OPTIONAL OUTDOOR TEMPERATURE RESET FUNCTIONFigure 10. Setpoint Versus Outdoor Temperature 10-1010-10 J.HUMIDITY TRANSDUCER SIGNAL INSTALLATIONL.NORTEC ONLINE INSTALLATION K.NETWORKING NHTCPage 24 10-10Page 25 10-10Figure 12. Networking NHTCs Optional Page 26 10-10Page 27 10-20 OPERATION10-20 C.BASIC STEAM PRODUCTION METHOD 1.NHTCA.NHTC COMPONENTS B.HUMIDIFIER START-UP10-20 TableNHTC/NHPC Components Page 29Item Number Table 1. NHTC/NHPC Components contPage 30 10-20Page 31 Figure 5. Capacity Setting and Cylinder LifeFigure 3. Humidifier Start-Up Figure 4. Drain Rate Versus Water10-20 Figure 6. Basic Steam Production MethodPage 32 G.SELF-HELP F.SOFTWARE FLOW CHART WITH DEFINITIONSE.SOFTWARE INITIAL SELF-TEST Table 2. Self-TestMessages10-20 Figure 7. Software Flow Chart Sheet 1 ofPage 34 10-20 Figure 7. Software Flow Chart Sheet 2 ofPage 35 10-20 Figure 7. Software Flow Chart Sheet 3 ofPage 36 10-20 Figure 7. Software Flow Chart Sheet 4 ofPage 37 10-20 Figure 7. Software Flow Chart Sheet 5 ofPage 38 10-20 Figure 7. Software Flow Chart Sheet 6 ofPage 39 10-20 Figure 7. Software Flow Chart Sheet 7 ofPage 40 Page 41 Table 3. Signal Light StatusH.SYSTEM MESSAGES AND LIGHTS I.DOUBLE UNIT OPERATIONNHTC Display Message Table 4. Status Messages with LED StatePage 42 10-20Probable Cause Page 43Symptom Diagnosed 10-20C.BLOWER PACK OPERATION 2.STEAM DISTRIBUTIONA.STEAM DISTRIBUTOR OPERATION B.SAM-eOPERATION10-20 Figure 10. Blower Pack Operation and AdjustmentsFigure 9. SAM-eOperation Page 45B.DIGITAL TRANSDUCER OPERATION NORTEC DOES NOT RECOMMEND USING THE DRY RELAY3.CONTROLS AND REMOTE COMMUNICATION OPTIONAL A.DIGITAL CONTROL OPERATIONFigure 12. Difference from Setpoint in Relation to Demand SignalD.NORTEC LINKS 2 OPERATION E.NORTEC ONLINE OPERATIONTHIS PAGE INTENTIONALLY LEFT BLANK Page 4810-20 Page 49 10-30 MAINTENANCE PROCEDURES10-30 VOLTAGE COMPONENTS AND WIRING. ACCESS SHOULD BE MAINTENANCE PROCEDURESA. MAINTENANCE DISCONNECT MAIN POWER BEFORE ANY SERVICING10-30 D.COMPONENTS OF THE STEAM CYLINDERFigure 1. Cylinder Components Page 5110-30 E.HOW TO REMOVE THE STEAM CYLINDERFigure 2. Cylinder Removal Procedure Page 5210-30 F.MANDATORY CLEANING OF THE DRAIN VALVEFigure 3. Drain Valve Maintenance Page 5310-30 G.HOW TO INSTALL THE REPLACEMENT CYLINDERFigure 4. Cylinder Replacement Procedure Page 54Page 55 10-40 TROUBLESHOOTING10-40 SHOULD BE DONE BY QUALIFIED PERSONNEL C.NHTC/NHPC 1.TROUBLESHOOTING NH ELECTRODE STEAM HUMIDIFIERSA.PREPARATION B.STARTING POINTSystem Table 1. Troubleshooting SymptomsPage 57 10-40CAN REMAIN VERY HOT DURING THE TROUBLESHOOTING 2. TROUBLESHOOTING DISTRIBUTORS3.SAM-eTROUBLESHOOTING Table 2. Ensuring A Demand SignalA.PROCEDURE 4.BLOWER PACKS TROUBLESHOOTING5.DIGITAL ON/OFF HUMIDISTAT SENSOR CALIBRATION Page 5910-40 Table 3. NH System MessagesPage 60 Symptom DiagnosedCorrective Action Page 6110-40 Probable Cause10-40 Table 3. NH System Messages contPage 62 Symptom DiagnosedCorrective Action Page 6310-40 Probable CauseTable 3. NH System Messages cont Page 64Symptom Diagnosed 10-40Corrective Action Page 6510-40 Probable CauseA.PROCEDURE 6.0-10VDIGITAL HUMIDISTAT SENSOR CALIBRATIONTable 4. Term Definitions Page 66Page 67 10-50 TECHNICAL10-50 Page 68 1.WIRING AND TERMINALSTable 1. Controller and Sensor Specifications A.HUMIDIFIER CONTROL INFORMATION10-50 B.NH WIRINGFigure 1. NHTC/NHPC Double Unit Wiring Diagram Page 6910-50 Figure 2. NHTC/NHPC Wiring DiagramPage 70 B. PRE-NORTECLINKS START-UPCHECKLIST A.PRE-NORTECONLINE START UP CHECKLIST WIRING3 Controls Wired 4 Start-UpProcedureUnit type: _______ C. HUMIDIFIER MANDATORY PRE-STARTUP CHECKLISTWIRING POWERPage 73 2.START-UPPROCEDURE1.PRELIMINARY RemarksPage 74 WHEN TO REPLACE THE CYLINDERCYLINDER REPLACEMENT PROCEDURE MANDATORY CLEANING OF THE DRAIN VALVE10-50 HOW TO INSTALL THE REPLACEMENT CYLINDEREXTENDED SHUTDOWN Page 75Figure 4. SAM-eExploded View and Spare Parts 3.SPARE PARTS AND EXPLODED VIEWSA.ASD, BSD, CSD DISTRIBUTOR B.SAM-eSPARE PARTS10-50 C.NH SERIES HUMIDIFIER SPARE PARTSPage 77 Table 2. NHTC/NHPC Plumbing Part List Table 2. NHTC/NHPC Plumbing Part List cont 10-50 Page 7910-50 Page 8010-50 Page 81 Table 3. NHTC/NHPC Electrical Parts List10-50 Table 3. NHTC/NHPC Electrical Parts List contPage 82 THIS PAGE INTENTIONALLY LEFT BLANK Page 8310-50 WARRANTY Walter Meier Climate USA Inc Cylinder Replacement Date MM/DD/YYYYU.S.A CANADA