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Evaporative Humidifier / Cooler Nortec MH Series 

 

Is a sustainable solution for both humidifying and cooling. Nortec’s MH series is an evaporative humidifier based on the adiabatic 
principle that results in air humidifying and cooling. Its innovative design is specifically engineered for Air Handing Units (AHU) or 
ventilation duct systems and is a perfect compliment towards GREEN/LEED building design.  

Model MHTC REflow Modulation  

The circulation pump conveys the water in the latter via EPDM plastic hoses to the spray beam located above the humidifier box. 
The water then trickles vertically through the boxes. The water not needed for humidifying flows back into the water basin where it 
is collected and recirculated for optimal water efficiency. The low-energy Nortec MH Series is an ideal design for integration into a 
central air conditioning system. 
 
Nortec MH characteristics at a glance: 
 

 

Humidifier media box made of polyester free of glass fibre with an impressed V-Profile for an efficient and healthy way 
of humidifying and cooling 

 

Simple and uncomplicated installation 

 

Low installation and operational costs for short and long-term facility cost reductions 

 

Short water basin depth made of stainless steel material with multi-sided gradients for effective drying of the 
humidifier. 

 

Water management integrated in the MH control system  unit for optimising water consumption and humidity control 

 

Operation for all water quality types: potable, softened, reverse osmosis (R/O) and fully-de-ionized (D/I) water 

 

Adiabatic evaporation cooling of over 21.5° F (12°C) can be achieved  

 

Ultra violet water treatment available  

 

 
The electronic control is an integral part of the humidifier. It enables operation free of malfunctions and optimises control accuracy 
and water consumption. 
 
The short stainless steel water tank depth will reduce on the overall footprint, saving valuable air handling real estate. There are 
lateral two guide tracks with suspension fixtures for the humidifier media boxes and mist eliminators to be easily installed. 
Integrated water management system consists of water distributors with flow regulators for setting consistent water flow volumes, 
a circulation pump, stainless steel water distribution hoods, electrical inlet valves, electrical step control valves and electronic 
control for optimum water efficiency and humidity control.  
 

 
Humidifying Media Box 

 
The core element of the MH series is the patented polyester media box located in the air duct. Dry air flows through the box, water 
flows over the hygroscopic media and the extremely large wet surface releases humidity to the air. This method enables air 
humidifying or cooling with substantially limiting the use of electrical energy.  
 
The V-Profile humidifier box consists of a polyester material with an impressed V-Profile, which enables a more intensive 
exchange of air and water. The polyester box is free of glass fibre and is fire protected in compliance with UL 900 Class 1 
certification. This not only makes it perfectly safe with regards to health, but also ensures a longer service life compared to the 
rational cellulose or fibre glass media. 

 

 

 
   V-Profile Media 

 

    

           Media Box 

Summary of Contents for MHTC

Page 1: ...is R O and fully de ionized D I water Adiabatic evaporation cooling of over 21 5 F 12 C can be achieved Ultra violet water treatment available The electronic control is an integral part of the humidifier It enables operation free of malfunctions and optimises control accuracy and water consumption The short stainless steel water tank depth will reduce on the overall footprint saving valuable air h...

Page 2: ...onic control cabinet includes electrical fusing and main power switch One two or three stage control through magnetic staging valves is available Microprocessor PI controlled analog humidity signals for flexibility Controlled flushing of the water tank in function of the filling cycles or time controlled drainage through the integrated real time clock Programmable wash cycle for cleaning the humid...

Page 3: ...ucer Sensor Controls P N 1509858 2 10V Dig Wall Humidity Sensor P N 1509857 2 10V Duct Humidity Sensor Nortec LINKS2 and Nortec Online please consult factory MHTC REflow Technical data Humidifying output see performance data Power consumption w UV 0 60 kW Power consumption w o UV 0 50 kW Primary voltage 120 1 60 V Ph Hz Control voltage 24V ac Modulation Water mains pressure 30 145 psi Water connec...

Page 4: ...4 200 mA F1 6 3 A F3 630 mA F2 1 0 A Main Switch Primary Terminal Block Internal External Drain Valve Inlet Valve Stage 1 Valve Stage 2 Valve Stage 3 Valve X6 N Stage 3 Stage 2 Stage 1 24 Vac Security Loop GND Channel 1 5 Vdc GND M Optional UV Lamp Recirculation Pump ON Active Service Fault 4 2 3 5 1 L1 N 8 9 10 11 13 12 15 14 17 16 3 4 5 7 6 1 2 10 11 9 8 14 16 17 1 2 120 24 Vac Hydraulic Unit In...

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Page 7: ...lation duct or air handling unit very quickly The media boxes can be mounted in the simplest of manners and only three connections are needed the supply inlet water valve drain water valve and all electrical control connections The REflow model incorporates a 120V single phase connection Typical MH installation Use as reference only MHTC REflow shown ...

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