Manuals / Nortec / Household Appliance / Humidifier

Nortec NH Series installation manual I.Optional Outdoor Temperature Reset Function, 10-10, Page 22

Models: NH Series

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I.OPTIONAL OUTDOOR TEMPERATURE RESET FUNCTION

NOTE

Order outdoor temperature sensor separately, Part #252-0263.

(1)Each humidistat and controller is equipped with an integrated reset function that will limit the setpoint during cold weather operation. This will prevent condensation on windows and building structures. Figure 10 illustrates how the setpoint reset feature operates.

(2)This feature is enabled by removing the jumper from terminals 8 and 1 on the humidistat and wiring the outdoor temperature sensor to these terminals.

(3)When the outdoor temperature setback feature is in effect, the humidistat will normally display the calculated setpoint limit based on the outdoor air temperature. A snowflake will also be displayed to indicate cold weather operation. When any key on the controller is pressed, the LCD screen will display the customer specified setpoint for a short duration.

Figure 10. Setpoint Versus Outdoor Temperature

10-10

Page 22 2008-08-28

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Nortec NH Series I.Optional Outdoor Temperature Reset Function, 10-10, Setpoint Versus Outdoor Temperature, Page 22

Contents

Installation Manual 2522381-CNH SeriesTM NHTC / NHPC ELECTRODE STEAM HUMIDIFIERPROPRIETARY NOTICE SPECIFICATION LABEL LOCATIONLIABILITY NOTICE COPYRIGHT NOTICE10-10INSTALLATION PROCEDURES TABLE OF CONTENTS10-30MAINTENANCE PROCEDURES 2008-08-28WARRANTY 10-40TROUBLESHOOTING2008-08-28 10-50TECHNICALFigure LIST OF FIGURES2008-08-28 10-10INSTALLATION PROCEDURE LIST OF TABLES10-40TROUBLESHOOTING 2008-08-282008-08-28 Page 1 10-00 INTRODUCTION10-00 Page 2 10-00Figure 1. NHTC D. ACCESSORIES BOX 1.PRE-INSTALLATION2.PACKAGING A.RECEIVING & UNPACKING EQUIPMENTFigure 2. Humidifier Box 10-00Figure 4. SAM-eDistributor Box Figure 3. Distributor 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 THIS PAGE INTENTIONALLY LEFT BLANK10-00 Page 9 10-10 INSTALLATION10-10 A.LOCATION 1.HUMIDIFIER INSTALLATIONB.MOUNTING WITH KEYHOLES C.MOUNTING WITH WALL BRACKETE.DRAIN LINE D.WATER SUPPLY LINEDRAIN WATER FROM HUMIDIFIER CAN BE VERY HOT F. STEAM RUNS AND CONDENSATE RETURNSFigure 1. Clearances and Operating Conditions 10-10Figure 2. Mounting with Keyholes Figure 3. Mounting with Mounting BracketPage 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 H.CONTROL WIRING 1Primary Voltage Supply Wiring to HumidifierbDemand Signal Controls Installation G.ELECTRICALPage 10-10Page 21 10-1010-10 I.OPTIONAL OUTDOOR TEMPERATURE RESET FUNCTIONFigure 10. Setpoint Versus Outdoor Temperature Page 22L.NORTEC ONLINE INSTALLATION J.HUMIDITY TRANSDUCER SIGNAL INSTALLATIONK.NETWORKING NHTC 10-10Page 24 10-10Page 25 10-10Figure 12. Networking NHTCs Optional Page 26 10-10Page 27 10-20 OPERATION10-20 A.NHTC COMPONENTS 1.NHTCB.HUMIDIFIER START-UP C.BASIC STEAM PRODUCTION METHODNHTC/NHPC Components TablePage 29 10-20Page 30 Table 1. NHTC/NHPC Components cont10-20 Item NumberFigure 3. Humidifier Start-Up Figure 5. Capacity Setting and Cylinder LifeFigure 4. Drain Rate Versus Water Page 3110-20 Figure 6. Basic Steam Production MethodPage 32 E.SOFTWARE INITIAL SELF-TEST F.SOFTWARE FLOW CHART WITH DEFINITIONSTable 2. Self-TestMessages G.SELF-HELP10-20 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 H.SYSTEM MESSAGES AND LIGHTS Table 3. Signal Light StatusI.DOUBLE UNIT OPERATION Page 41Page Table 4. Status Messages with LED State10-20 NHTC Display MessageSymptom Diagnosed Page 4310-20 Probable CauseA.STEAM DISTRIBUTOR OPERATION 2.STEAM DISTRIBUTIONB.SAM-eOPERATION C.BLOWER PACK OPERATIONFigure 9. SAM-eOperation Figure 10. Blower Pack Operation and AdjustmentsPage 45 10-203.CONTROLS AND REMOTE COMMUNICATION OPTIONAL NORTEC DOES NOT RECOMMEND USING THE DRY RELAYA.DIGITAL CONTROL OPERATION B.DIGITAL TRANSDUCER OPERATIOND.NORTEC LINKS 2 OPERATION Relation to Demand SignalE.NORTEC ONLINE OPERATION Figure 12. Difference from Setpoint inTHIS PAGE INTENTIONALLY LEFT BLANK Page 4810-20 Page 49 10-30 MAINTENANCE PROCEDURES10-30 A. MAINTENANCE MAINTENANCE PROCEDURESDISCONNECT MAIN POWER BEFORE ANY SERVICING VOLTAGE COMPONENTS AND WIRING. ACCESS SHOULD BEFigure 1. Cylinder Components D.COMPONENTS OF THE STEAM CYLINDERPage 10-30Figure 2. Cylinder Removal Procedure E.HOW TO REMOVE THE STEAM CYLINDERPage 52 10-30Figure 3. Drain Valve Maintenance F.MANDATORY CLEANING OF THE DRAIN VALVEPage 53 10-30Figure 4. Cylinder Replacement Procedure G.HOW TO INSTALL THE REPLACEMENT CYLINDERPage 54 10-30Page 55 10-40 TROUBLESHOOTING10-40 A.PREPARATION 1.TROUBLESHOOTING NH ELECTRODE STEAM HUMIDIFIERSB.STARTING POINT SHOULD BE DONE BY QUALIFIED PERSONNEL C.NHTC/NHPCPage 57 Table 1. Troubleshooting Symptoms10-40 System3.SAM-eTROUBLESHOOTING 2. TROUBLESHOOTING DISTRIBUTORSTable 2. Ensuring A Demand Signal CAN REMAIN VERY HOT DURING THE TROUBLESHOOTING5.DIGITAL ON/OFF HUMIDISTAT SENSOR CALIBRATION 4.BLOWER PACKS TROUBLESHOOTINGPage 59 A.PROCEDUREPage 60 Table 3. NH System MessagesSymptom Diagnosed 10-4010-40 Page 61Probable Cause Corrective ActionPage 62 Table 3. NH System Messages contSymptom Diagnosed 10-4010-40 Page 63Probable Cause Corrective ActionSymptom Diagnosed Page 6410-40 Table 3. NH System Messages cont10-40 Page 65Probable Cause Corrective ActionTable 4. Term Definitions 6.0-10VDIGITAL HUMIDISTAT SENSOR CALIBRATIONPage 66 A.PROCEDUREPage 67 10-50 TECHNICAL10-50 Table 1. Controller and Sensor Specifications 1.WIRING AND TERMINALSA.HUMIDIFIER CONTROL INFORMATION Page 68Figure 1. NHTC/NHPC Double Unit Wiring Diagram B.NH WIRINGPage 69 10-5010-50 Figure 2. NHTC/NHPC Wiring DiagramPage 70 3 Controls Wired A.PRE-NORTECONLINE START UP CHECKLIST WIRING4 Start-UpProcedure B. PRE-NORTECLINKS START-UPCHECKLISTWIRING C. HUMIDIFIER MANDATORY PRE-STARTUP CHECKLISTPOWER Unit type1.PRELIMINARY 2.START-UPPROCEDURERemarks Page 73CYLINDER REPLACEMENT PROCEDURE WHEN TO REPLACE THE CYLINDERMANDATORY CLEANING OF THE DRAIN VALVE Page 74EXTENDED SHUTDOWN HOW TO INSTALL THE REPLACEMENT CYLINDERPage 75 10-50A.ASD, BSD, CSD DISTRIBUTOR 3.SPARE PARTS AND EXPLODED VIEWSB.SAM-eSPARE PARTS Figure 4. SAM-eExploded View and Spare 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 Page10-50 WARRANTY U.S.A Cylinder Replacement Date MM/DD/YYYYCANADA Walter Meier Climate USA Inc