E.SOFTWARE INITIAL SELF-TEST

 

Table 2. Self-Test Messages

 

 

Graphic Display

Explanation/Comments (What You Read)

 

 

NHTC START-UP:

The unit is beginning its bootup routine, along with powering up the EEPROM on the

INIT CYLINDER

SMART Cylinder

 

 

NHTC START-UP:

The unit reads the type of cylinder to provide maximum control of operation. If it

READING CYLINDER DATA

unable to do so it will skip the rest of the self-test and fault out.

 

 

SELF TEST CYLINDER

Unit energizes the fill valve for 1 second.

Inlet Valve

 

ESC

 

 

 

SELF TEST CYLINDER

Unit energizes the drain valve for 2 seconds.

Drain Valve

 

ESC

 

 

 

SELF TEST CYLINDER

Unit closes the contactor for 2 seconds.

Heat Cont.

 

ESC

 

 

 

SELF TEST CYLINDER

Unit activates the pump (if present) for 2 seconds.

Pump

 

ESC

 

 

 

SELF TEST CYLINDER

Unit activates the bleed valve (if present) for 2 seconds.

Bleed Valve

 

ESC

 

 

 

SELF TEST REMOTE

Unit activates the steam relay for remote fault indication package and green light.

Steam Relay

 

ESC

 

 

 

SELF TEST REMOTE

Unit activates the service relay for remote fault indication package and yellow light.

Service Relay

 

ESC

 

 

 

SELF TEST REMOTE

Unit activates the error relay for remote fault indication package and red light.

Error Relay

 

ESC

 

 

 

SELF TEST REMOTE

Unit activates the unit on relay.

Oper. Relay

 

ESC

 

 

 

F.SOFTWARE FLOW CHART WITH DEFINITIONS

(1)The flow chart in Figure 7 depicts the software logic and definitions.

G.SELF-HELP

(1)The microcomputer applies corrective actions whenever its self-diagnostics identifies a problem that it is able to correct by itself. If the corrective action is not successful then it displays a system message. If the corrective action requires a service person, then the microcomputer’s only resort is to stop the unit and display a system message. The unit never stops unless it has to.

(2)After three days of no call from either the on/off controls or the modulating controls, when active, the three-day drain active feature is automatically activated long enough to drain all water from the steam cylinder. This NORTEC feature will prolong the life of the cylinder. (User selectable, default is ON.)

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Nortec NH Series Software Initial SELF-TEST, Self-Test Messages, Software Flow Chart with Definitions, Self-Help
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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.
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