Table 3. NH System Messages (cont)

NHTC Display Message

LED state

System Action

Symptom Diagnosed

 

 

 

 

 

 

E17: Req off current

RED

Humidifier interrupts operation

With no system demand, current is

 

 

 

and the fault relay is activated.

detected in the cylinder.

 

 

 

 

 

 

W18: Foam

YEL

System will activate selected

System has detected foaming and will

 

 

 

foam algorithm. (See Figure 7.)

attempt to self correct if foam mode is

 

 

 

 

active.

 

 

 

 

 

 

E18: Foam

RED

System will activate selected

System has detected foaming and will

 

 

 

foam algorithm. (See Figure 7.)

attempt to self correct if foam mode is

 

 

 

 

active.

 

 

 

 

 

 

W19: Cylinder spent

YEL

The electronics allow the

Electronics have determined cylinder

 

 

 

cylinder to be reset up to four

is spent. Within the next 72 hours the

 

 

 

times before locking out the

humidifier will stop.

 

 

 

humidifier.

 

 

 

 

 

 

 

E19: Cylinder spent

YEL, RED

Humidifier interrupts operation

Electronics have determined that the

 

 

 

and the fault relay is activated.

cylinder is spent.

 

 

 

 

 

 

W20: Conductivity too low

YEL

Humidifier will continue to

Water conductivity is determined to be

 

 

 

operate on this water supply.

less than optimum.

 

 

 

 

 

 

W23: Control sensor broken

YEL

Humidifier put on standby. After

Electronics cannot detect the control

 

 

 

a timeout period, this warning

RH sensor connected to the

 

 

 

becomes a fault.

humidifier.

 

 

 

 

 

 

E23: Control sensor broken

RED

Humidifier interrupts operation

Electronics cannot detect the control

 

 

 

and the fault relay is activated.

RH sensor connected to the

 

 

 

 

humidifier.

 

 

 

 

 

 

W24: Limit sensor broken

YEL

Humidifier put on standby. After

Electronics cannot detect the limit RH

 

 

 

a timeout period, this warning

sensor connected to the humidifier.

 

 

 

becomes a fault.

 

 

 

 

 

 

 

E24: Limit sensor broken

RED

Humidifier interrupts operation

Electronics cannot detect the limit RH

 

 

 

and the fault relay is activated.

sensor connected to the humidifier.

 

 

 

 

 

 

W25: 3-day idle drain

YEL

The humidifier drains the

This safety feature drains standing

 

activated

 

cylinder after three days of

water.

 

 

 

inactivity.

 

 

 

 

 

 

 

W26: 3-day forced drain

YEL

The humidifier drains the

This customer selected feature drains

 

activated

 

cylinder after three days of

the cylinder to remove minerals.

 

 

 

operation.

 

 

 

 

 

 

 

10-40

Page 62 2008-08-28

Page 68 Page 70
Page 69
Image 69
Nortec NH Series installation manual E17 Req off current
Page 68 Page 70

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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