7.CONTROLS

A.GENERAL

(1)NORTEC humidifiers all accept on/off controls for their security loop. Many NORTEC humidifiers can also accept modulating or transducer signals for control (See the features section for each specific model).

CAUTION

REGARDLESS OF SELECTING ON/OFF OR MODULATING CONTROL

METHOD, NORTEC HUMIDIFIERS MUST HAVE CLOSED CIRCUIT

ACROSS ITS ON/OFF SECURITY LOOP CONTROL TERMINAL TO

OPERATE. NORTEC HIGHLY RECOMMENDS THE USE OF A HIGH

LIMIT HUMIDISTAT AND AN AIR PROVING SWITCH IN SERIES FOR

THIS FUNCTION.

B.ON/OFF CONTROLS

(1)On/Off controls are used in all NORTEC humidifier security loops. The digital humidistat can also be used as a space humidity controller. These controls include:

(a)Air Proving Switch – duct mounted, pressure differential switch, adjustable set point from 0.07 IWC to 12.0 IWC, good for positive, negative or differential pressure applications, stops humidifier if duct air pressure is not sensed. Turns humidifier off if air handler fails.

(b)Duct Mounted Digital Humidistat – control or high limit, adjustable set point from 15-90% rh with accuracy fixed at ±3% at 25°C, operating range of 0-95% rh, closes on humidity drop for control and opens on rise for high limit duct application.

(c)Wall Mounted Digital Humidistat – control or high limit, adjustable set point from 15-90% rh with accuracy fixed at ±3% at 25°C, operating range of 0-95% rh, closes on humidity drop for control and opens on rise for high limit application.

(d)On/Off Controls Supplied by Others – Can be used as long as they have a dry set of contacts capable of passing a 24-VAC, 2-A maximum signal.

C.MODULATING CONTROLS

(1)Modulating Controls are used to send a modulating demand signal to the NORTEC humidifier. Different models can accept different signals (see features section for each specific model) NORTEC supplied controllers send a 0-10 VDC demand signal. This signal can be used as a control and in some models can also be used as a modulating high limit. These controls include:

(a)Wall Mounted Digital Humidistat with Integrated Sensor – control or high limit, adjustable set point from 15-90% rh with accuracy fixed at ±3% at 25°C, outputs a 0-10 VDC signal.

(b)Wall Mounted Digital Humidistat Without Sensor – control or high limit, adjustable set point from 15-90% rh with accuracy fixed at ±3% at 25°C, outputs a 0-10 VDC signal. Requires a remote transducer sensor supplying a 2-10 VDC signal.

(c)Duct Mounted Digital Humidistat With Sensor – This package comes with both a remote sensor and a wall mounted controller without sensor. Control or high limit, adjustable set point from 15-90% rh with accuracy fixed at ±3% at 25°C, outputs a 0-10 VDC signal.

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Nortec NHTC, NHPC manual Modulating Controls
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NHPC, NHTC specifications

The Nortec NHTC (Nortec High Temperature Charging) and NHPC (Nortec High Performance Charging) systems are cutting-edge solutions designed for optimal charging management, particularly in industrial and commercial environments. These systems are engineered to meet the high demands of battery charging, ensuring efficiency, reliability, and safety.

One of the main features of the Nortec NHTC and NHPC systems is their ability to handle a wide range of battery types and chemistries. This versatility makes them suitable for various applications, including electric vehicles, renewable energy storage, and specialized industrial equipment. The systems support lithium-ion, lead-acid, and other advanced battery technologies, enabling seamless integration into existing infrastructure.

The NHTC and NHPC systems are equipped with smart charging algorithms that dynamically adjust charging parameters based on the specific needs of the battery being charged. These algorithms monitor critical factors, such as temperature, voltage, and current, ensuring optimal charging cycles that enhance battery life and performance. Additionally, these systems feature multi-stage charging processes that maximize efficiency and reduce the risk of battery degradation.

Safety is a paramount consideration in the design of the NHTC and NHPC systems. Both systems incorporate advanced safety mechanisms, including over-voltage protection, over-current protection, and thermal management features. These safeguards prevent potential hazards, ensuring the safe operation of the charging process.

Another significant characteristic of the Nortec NHTC and NHPC systems is their user-friendly interface, which simplifies operation and monitoring. The systems come with intuitive display panels that provide real-time data on charging status, battery health, and operational efficiency. Furthermore, remote monitoring capabilities allow users to track performance metrics and troubleshoot issues from anywhere, enhancing convenience and operational efficiency.

The robust design of these charging systems ensures durability in challenging environments. Nortec's NHTC and NHPC systems are built to withstand extreme temperatures and industrial conditions, making them ideal for heavy-duty applications.

In conclusion, the Nortec NHTC and NHPC systems stand out for their versatility, intelligent charging algorithms, safety features, user-friendly interface, and robust construction. They provide a comprehensive solution for modern charging needs, making them an invaluable asset in today’s fast-evolving technological landscape. With the increasing demand for efficient and reliable charging systems, Nortec’s innovations continue to pave the way for the future of battery management.
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