Nortec NH Series installation manual Probable Cause Corrective Action

Page 68

 

 

Probable Cause

 

Corrective Action

 

 

 

 

 

 

1.

The driver board is damaged.

1.

Replace the driver board.

 

2.

Controller is not configured correctly.

2.

Verify that the humidifier is a double unit.

 

 

 

3.

Check that the driver board ribbon cable is connected

 

 

 

 

to the main board.

 

 

 

 

 

 

1.

The master unit is not configured correctly.

1.

Verify configuration settings for the units.

 

2.

Is the RJ12 cable damaged?

2.

Replace the RJ12 cable.

 

3.

Is an incorrect RJ12 cable used?

3.

Replace with correct cable.

 

4.

J2 ports on driver boards are not connected.

4.

Check all connections to the processor board.

 

 

 

 

The electronics of the main PCB have diagnosed the main

Reset humidifier and monitor display. If Error reoccurs

 

PCB (itself) as defective.

within one minute of resetting the unit, the problem is with

 

 

 

the main PCB. If the Error is not repeated, the primary

 

 

 

power to the unit is suspect.

 

 

 

 

 

 

1.

Current measurement core loose on driver board?

1.

Connect CT core.

 

2.

Primary wire not looped through CT core?

2.

Interrupt main power and rewire CT core.

 

3.

High water sensor plug is on an electrode pin.

3.

Install high water plug on shrouded pin.

 

 

 

 

 

 

1.

Is the drain stuck open?

1.

Clean drain valve or replace.

 

2.

Check system backpressure.

2.

Install fill cup extension kit if required.

 

3.

Is the water supply closed?

3.

Open water supply.

 

4.

Drain leaking?

4.

Clean drain valve.

 

 

 

 

 

 

1.

Is the water supply closed?

1.

Open water supply.

 

2.

Is the drain leaking?

2.

Clean drain valve.

 

3.

Check the system backpressure.

3.

Clean drain valve or replace.

 

 

 

4.

Install fill cup extension kit if required.

 

 

 

 

 

 

1.

Is the drain blocked?

1.

Clean the drain line.

 

2.

Is the cylinder filling too fast?

2.

Replace the fill valve.

 

3.

Was the wrong fill valve supplied?

3.

Replace the fill valve.

 

4.

Is there scale in the cylinder?

4.

Rinse the cylinder.

 

5.

Is the water too conductive?

5.

Change water supply.

 

6.

Is the wrong cylinder supplied?

6.

Install the correct type of cylinder.

 

7.

Is the cylinder spent?

7.

Replace the cylinder.

 

 

 

 

 

 

1.

Is the drain blocked?

1.

Clean the drain line.

 

2.

Is the drain restricted?

2.

Clean the drain line.

 

3.

Is the cylinder filling too fast?

3.

Replace the fill valve.

 

4.

Was the wrong fill valve supplied?

4.

Replace the fill valve.

 

5.

Is there scale in the cylinder?

5.

Rinse the cylinder.

 

6.

Is the water too conductive?

6.

Change the water supply.

 

7.

Was the wrong cylinder supplied?

7.

Install correct cylinder type.

 

 

 

 

 

 

1.

Is the drain blocked?

1.

Clean the drain line.

 

2.

Is the drain restricted?

2.

Clean the drain line.

 

3.

Is the cylinder filling too fast?

3.

Replace the fill valve.

 

4.

Was the wrong fill valve supplied?

4.

Replace the fill valve.

 

5.

Is there scale in the cylinder?

5.

Rinse the cylinder.

 

6.

Is the water too conductive?

6.

Change the water supply.

 

 

 

 

 

 

1.

Is the drain blocked?

1.

Clean the drain line.

 

2.

Is the drain restricted?

2.

Clean the drain line.

 

3.

Is the cylinder filling too fast?

3.

Replace the fill valve.

 

4.

Was the wrong fill valve supplied?

4.

Replace the fill valve.

 

5.

Is there scale in the cylinder?

5.

Rinse the cylinder.

 

6.

Is the water too conductive?

6.

Change the water supply.

 

 

 

 

 

10-40

Page 61 2008-08-28

Page 67 Page 69
Image 68
Page 67 Page 69
Contents SeriesTM 2522381-C2008-08-28 Revision Number Date Date Put ManualTable of Contents Warranty List of Figures List of Tables 2008-08-28 Introduction Nhtc PRE-INSTALLATION PackagingHumidifier Box Preinstallation Equipment Verification Typical Nhtc Installation Sheet 1 Typical Nhtc Installation Sheet 2 This page Intentionally Left Blank Installation Humidifier Installation LocationMounting with Keyholes Mounting with Wall BracketSteam Runs and Condensate Returns Water Supply LineDrain Line Drain Water from Humidifier can be Very HOT Clearances and Operating Conditions Drain Water and Supply Connection 30+ Copper Tube Inch MED-L Tubing 1.125 inch OD 10-10 10-10 Nominal Tube Standard 90degree Standard 45 degree Diameter Side Outlet TeeSteam Outlet Steam InletPrimary Voltage Supply Wiring Primary Voltage Supply Wiring to Humidifier Control WiringDemand Signal Controls Installation ElectricalOn/Off Control Guidelines and Low Voltage Terminal Strip Nortec Control Guidelines and Wiring Optional Optional Outdoor Temperature Reset Function Setpoint Versus Outdoor TemperatureNetworking Nhtc Humidity Transducer Signal InstallationNortec Online Installation Nortec Humidity Transducer Guidelines and Wiring Optional Networking NHTCs Optional Nortec OnLine Installation Guidelines Optional Operation Nhtc Nhtc ComponentsHumidifier START-UP Basic Steam Production MethodNHTC/NHPC Components Item Number Component Name DescriptionIf loose or frayed Humidifier Start-Up Basic Steam Production Method Software Flow Chart with Definitions Software Initial SELF-TESTSelf-Test Messages SELF-HELPSoftware Flow Chart Sheet 1 Software Flow Chart Sheet 2 Software Flow Chart Sheet 3 Software Flow Chart Sheet 4 Software Flow Chart Sheet 5 Software Flow Chart Sheet 6 Software Flow Chart Sheet 7 Signal Light Status System Messages and LightsDouble Unit Operation Yellow Green RedStatus Messages with LED State Nhtc Display Message LED state System ActionSymptom Diagnosed Probable Cause Corrective Action SAM-e Operation Steam DistributionSteam Distributor Operation Blower Pack Operation and Adjustments Digital Transducer Operation Controls and Remote Communication OptionalDigital Control Operation Nortec Links 2 Operation Nortec Online OperationThis page Intentionally Left Blank Maintenance Procedures Extended SHUT-DOWN When to Replace the Steam CylinderNH Electrode Steam Humidifiers Components of the Steam Cylinder Cylinder ComponentsHOW to Remove the Steam Cylinder Cylinder Removal ProcedureMandatory Cleaning of the Drain Valve Drain Valve MaintenanceHOW to Install the Replacement Cylinder Cylinder Replacement ProcedureTroubleshooting Starting Point Troubleshooting NH Electrode Steam HumidifiersPreparation Troubleshooting Symptoms System What to Check WhyTroubleshooting Distributors Ensuring a Demand SignalProcedure Check Why and HowBlower Packs Troubleshooting Digital ON/OFF Humidistat Sensor CalibrationNH System Messages REDProbable Cause Corrective Action E17 Req off current Contactor is open? W27 Safety loop instability Verify that the RH setpoint is less than the RH high limit Term Definition 10V Digital Humidistat Sensor CalibrationTerm Definitions Technical Humidifier Control Information Wiring and TerminalsController and Sensor Specifications NH Wiring NHTC/NHPC Double Unit Wiring DiagramNHTC/NHPC Wiring Diagram Check Lists PRE-NORTEC Online Start UP Checklist WiringPRE-NORTEC Links START-UP Checklist Humidifier Mandatory PRE-START UP Checklist WiringPower Water QualityHumidifier Mandatory START-UP Checklist and Quick Reference START-UP ProcedurePreliminary RemarksCylinder Replacement Procedure Periodic Maintenance Checklist and Quick Reference page 1When to Replace the Cylinder Periodic Maintenance Checklist and Quick Reference page 2 Extended ShutdownSpare Parts and Exploded Views ASD, BSD, CSD DistributorNH Series Humidifier Spare Parts NHTC/NHPC Plumbing Compartment Exploded View and Spare PartsNHTC/NHPC Plumbing Part List Model10-50Page 79 NHTC/NHPC Plumbing Part List Fillcup Extension KIT NHTC/NHPC10-50 10-50Page 81 NHTC/NHPC Electrical Parts List Three Phase This page Intentionally Left Blank Warranty Cylinder Replacement Date MM/DD/YYYY Walter Meier Climate USA Inc

NH Series specifications

The Nortec NH Series stands as a remarkable line of heating and cooling equipment designed specifically for commercial and industrial applications. Renowned for its efficiency, reliability, and innovation, the NH Series is engineered to meet the demanding needs of various environments, including hospitals, educational institutions, and office buildings.

One of the standout features of the Nortec NH Series is its modular design. This flexibility allows for easy integration into existing systems, making it an ideal choice for both new installations and upgrades. The modular setup not only enhances space efficiency but also allows users to scale the system according to their specific requirements. This adaptability is essential for facilities looking to optimize their HVAC systems without extensive renovations.

The NH Series incorporates advanced technologies that set it apart in the market. It employs high-efficiency heat exchangers made from durable materials that provide exceptional thermal performance. These heat exchangers facilitate rapid heat transfer while maintaining energy efficiency, lowering operational costs. Additionally, the unit features variable-speed fans that adjust airflow according to real-time demands, contributing to quieter operation and further energy savings.

Another noteworthy characteristic of the NH Series is its intelligent control system. The integrated controls offer user-friendly interfaces and compatibility with building management systems. This enables operators to monitor and adjust settings remotely, enhancing operational efficiency and ensuring optimal indoor climate conditions.

Furthermore, the Nortec NH Series is designed with sustainability in mind. It complies with stringent environmental regulations and utilizes eco-friendly refrigerants, reducing the overall carbon footprint of the facility. This commitment to sustainability resonates with businesses looking to enhance their green credentials while maintaining a comfortable environment.

In summary, the Nortec NH Series exemplifies innovation in HVAC technology, combining modular design, high-efficiency heat exchangers, variable-speed fans, intelligent controls, and sustainable practices. These features make it a top choice for professionals seeking reliable and efficient heating and cooling solutions for a variety of commercial applications. With the Nortec NH Series, users can achieve significant energy savings, enhanced comfort, and a positive impact on the environment.
Top Page Image Contents