5.Field-wiring connections for modulation control are to be made to external side of terminals 26, 28, 30 and 32 on humidifier’s control terminal strip.

Always refer to the external control’s wiring diagram factory supplied with each NORTEC modulation control option.

6.Varying dc Voltage Modulation Signal Powered by Others: NHMC/NHP Series humidifier can be factory configured to accept the following vdc signals: 0-3 vdc, 0-10 vdc, 0-16 vdc, 0-20 vdc, 1-5 vdc or 2-10 vdc. Wire according to NORTEC supplied external wiring diagram that comes with each modulation option. To share the signal with more than one humidifier, wire in parallel to each humidifier. If a different signal is desired consult factory.

7.Varying dc milliAmp (mA) Modulation Signal Powered by Others: NHMC/NHP Series humidifier can be factory-configured to accept a standard dc mA signal, if pre-specified. Wire according to NORTEC supplied external wiring diagram that comes with each modulation option. Choose from 0-20 dc mA or 4-20 dc mA. To share the signal with more than one humidifier consult factory.

8.Varying Resistance (￿) Modulation by Others: NHMC/NHP Series humidifiers can be factory configured to power a 3-wire varying resistance modulation humidistat by others, if pre-specified. Wire according to NORTEC supplied external wiring diagram that comes with each modulation option. Choose from 0-135￿, 0-500￿or up to

0-1000￿. To share the signal with more than one humidifier consult factory.

OPTIONAL MODULATION (CONTINUOUS CONTROL) PACKAGES BY NORTEC

1.Modulation (continuous control) “packages” are offered as accessories by NORTEC. Power supply comes from inside NHMC/NHP Series humidifiers.

Figure #11

Generalized Modulation Wiring

Varies With Each

Modulation Option

See NORTEC Supplied

AExternal Wiring Diagram

B

C

External

 

 

 

 

 

 

 

 

8

10

32

30

28

26

 

Internal

 

 

 

 

 

 

 

 

 

 

 

_

y

+

z

NHMC/NHP

 

 

 

 

 

2.NORTEC provides the humidity set point circuitry and sensor(s) for wall or duct mounting or both (only applies to NHMC. NHP is only capable of single channel continuous control modulating) as

pre-selected when ordering the option. NORTEC offers several packages for NHMC/NHP Series humidifiers. Wire according to NORTEC supplied external wiring that comes with each optional modulation package.

3.Optional modulation packages without modulating safety high limit can use on-off safety high limit. Refer to on-off controls section.

4.All versions can use on-off safety air proving switch. Refer to on-off controls section.

OPERATION

INTRODUCTION

The NORTEC NH Series humidifier is a completely new design based on up-to-date technology. The NHB is designed to provide clean steam humidification at an economical price. It utilizes NORTEC’s patented electronic Auto-Adaptive internal control system for high efficiency, low waste of water and electricity.

The NHP and NHMC utilize NORTEC’s patented P+I Auto-Adaptive control for greater control of the space humidity. Both the NHP and NHMC use a micro-computer control system for greater flexibility. The NHMC has a liquid crystal display (LCD) to indicate system messages, display RH and temperature. The NHMC can accept dual modulation signals and is NORTEC’s most advanced model.

LAYOUT AND FUNCTION

The NH Series humidifiers consist of a plumbing and an electric compartment. In every case there is at least one steam distributor (SD) for installation in air ducts or blower packs (built on: BOBP, remote mounted: RMBP) for direct space humidification.

Water enters the steam cylinder through the bottom via the drain valve from the fill cup assembly when the 24 volt fill valve solenoid is energized. When water submerges the electrodes, the minerals in the water conduct current that heats the water and produces sterile steam for distribution into the air. The minerals in the water remain in the cylinder which is periodically drained to maintain optimum performance and cylinder life.

Primary electric power is applied to the electrodes in the steam cylinder when the on/off switch is pushed on and all controls options are calling. A primary to 24 volt stepdown transformer provides power to the contactor holding coil(s) via the main control board. The humidifier’s operating status is reported to the user by the green and yellow indicator lights on the front of the unit as shown in following table.

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Nortec 132-3091 manual Introduction, Layout and Function, Optional Modulation Continuous Control Packages by Nortec
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132-3091 specifications

Nortec 132-3091 is a highly regarded humidity control system designed to meet the precise needs of various industries, including pharmaceutical, healthcare, laboratories, and food processing. This system stands out due to its advanced features and technologies, making it a reliable choice for maintaining optimal humidity levels.

One of the main features of the Nortec 132-3091 is its energy-efficient operation. It incorporates innovative technologies that minimize energy consumption while delivering accurate moisture levels. The unit utilizes an intelligent control system that continuously monitors ambient conditions, adjusting output accordingly to achieve the desired humidity without excessive energy use.

Another key characteristic is its robust design, which emphasizes durability and reliability. The Nortec 132-3091 is built with high-quality materials and components, ensuring a long service life even in demanding environments. This attention to quality not only enhances performance but also reduces maintenance costs over time.

The system's versatility allows it to integrate seamlessly with various HVAC systems. It can operate as a standalone humidifier or be integrated into existing heating and cooling systems to enhance overall climate control. This flexibility makes it suitable for different applications and configurations.

User-friendly controls and an intuitive interface make the Nortec 132-3091 easy to operate and monitor. The digital display provides real-time readings of humidity levels, allowing for quick adjustments as needed. This feature is particularly beneficial in environments requiring strict humidity controls, such as cleanrooms and manufacturing processes.

Safety is a top priority with the Nortec 132-3091. The system includes multiple safety features, such as automatic shut-off and alarms, to prevent malfunction and protect sensitive materials and processes. The incorporation of advanced sensors ensures accurate readings and immediate feedback for real-time control.

Finally, the Nortec 132-3091 adheres to environmental standards and regulations, making it a sustainable choice for businesses looking to reduce their environmental footprint. Its eco-friendly refrigerants and low water consumption align with today’s sustainability goals, appealing to organizations committed to responsible operations.

In summary, the Nortec 132-3091 is a powerful and efficient humidification solution, combining advanced technology, durability, and user-friendly features. Its ability to deliver precise humidity control while minimizing energy usage makes it an excellent investment for various industries seeking optimal environmental conditions.
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