Nortec NH Series installation manual Symptom Diagnosed Probable Cause Corrective Action

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Symptom Diagnosed

Probable Cause

Corrective Action

 

 

 

 

 

Unit is awaiting a demand or

This is normal when there is no need for

Normal Operation

 

control signal.

humidity. If you believe there is a need for

 

 

 

humidity, and the unit should not be idle,

 

 

 

refer to troubleshooting

 

 

 

 

 

 

The unit is now boiling water in

This is normal when there is a need for

Normal Operation

 

the cylinder and filling as

humidity. If you believe there is no need for

 

 

necessary.

humidity, and the unit should idle, refer to

 

 

 

troubleshooting

 

 

 

 

 

 

This is not a fault or warning. It

Manual drain switch has been activated.

Press Manual Drain button again to

 

is an indication that the manual

 

stop the drain action.

 

drain switch has been activated.

 

 

 

 

 

 

 

Safety loop circuit (terminal 1

One or more of the safety devices is open

Determine which device is preventing

 

and 2) is open.

as the result of a device failure, improper

continuity of the safety loop circuit, and

 

 

installation or an unsafe condition has been

verify that it is functioning properly and

 

 

detected.

is properly installed and calibrated.

 

 

 

 

 

Water has reached the top of

1. Normal on start-up with a new cylinder

If foaming is determined to be the

 

the cylinder and has activated

or a cylinder that has been completely

cause of the high water indication,

 

the high water sensor. This is

drained because of an extended off

consult your local representative about

 

not an error or fault, but is

period. This condition can last several

possible adjustment and/or a foam

 

normal on start-up and at the

hours until the water in the cylinder has

detection kit. If not foaming, consider it

 

end of a cylinder life span.

concentrated or the electrodes can no

normal operation unless water level is

 

 

longer provide rated capacity or

not at the top of the cylinder.

 

 

adjusted capacity. Water level

 

 

 

automatically rises to meet the demand.

 

 

 

2. Foaming can also cause an invalid high

 

 

 

water indication.

 

 

 

 

 

 

Keep Warm feature is enabled

Unit is entering the Keep Warm cycle. The

Normal for unit with Keep Warm setting

 

and proceeding to a Keep Warm

unit has been inactive for a given period

activated.

 

Cycle.

and is keeping the water warm.

 

 

 

 

 

 

Electronics have determined

The cylinder must be replaced with the

When ordering a new cylinder, quote

 

cylinder is spent. Within the next

same type and model.

the model number presently installed in

 

72 hours the humidifier will stop.

 

the humidifier.

 

 

 

 

 

Electronics have determined

The cylinder must be replaced with the

When ordering a new cylinder, quote

 

that the cylinder is spent.

same type and model.

the model number presently installed in

 

 

 

the humidifier.

 

 

 

 

 

The electronics has detected

The unit has detected a foaming condition

The unit will initiate corrective action on

 

foaming within the cylinder (only

within the cylinder.

its own.

 

for units with the optional Foam

 

 

 

Detection Package).

 

 

 

 

 

 

10-20

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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 Mounting with Keyholes Humidifier InstallationLocation 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 Steam Outlet Nominal Tube Standard 90degree Standard 45 degree DiameterSide Outlet Tee Steam InletPrimary Voltage Supply Wiring Demand Signal Controls Installation Primary Voltage Supply Wiring to HumidifierControl Wiring 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 Humidifier START-UP NhtcNhtc Components Basic Steam Production MethodNHTC/NHPC Components Item Number Component Name DescriptionIf loose or frayed Humidifier Start-Up Basic Steam Production Method Self-Test Messages Software Flow Chart with DefinitionsSoftware Initial SELF-TEST 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 Double Unit Operation Signal Light StatusSystem Messages and Lights 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 WhyProcedure Troubleshooting DistributorsEnsuring a Demand Signal 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 Power Humidifier Mandatory PRE-START UP ChecklistWiring Water QualityPreliminary Humidifier Mandatory START-UP Checklist and Quick ReferenceSTART-UP Procedure 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.