Nortec Steam Humidifiers manual Introduction, Resdelux Operation, Control Installation

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current) across terminals 1 and 2 on the low voltage control terminal.

Caution: This is the “common” wire from the transformer that is connected to the ground. It will short on/off control loop if it touches a grounded metal surface.

A - Wall or Duct Mounted Control On/Off Humidistat: Wired to close when there is a drop in humidity and open when the setpoint is reached. Set to desired % RH.

B - Duct Mounted Safety High Limit On/Off Humidistat (if used): Wired to close when there is a drop in humidity and open when the safety setpoint is reached. Set to approximately 85% RH as a safety to help prevent saturation and wetting in the duct (not required when using blower pack kit).

C - Duct Mounted Safety Air-Proving On/Off Switch (if used): Wired to close when sensing air flow and open when no air flow is sensed. Used as a safety to prevent saturation of the duct when there is no air flow (not required when using blower pack kit).

Figure #14

External Wiring Of On/Off Controls

 

A

 

 

B

 

 

C

 

External

1

2

Internal

 

 

1.NORTEC offers various versions of A, B and C to suit each application. In general, A is essential for in space applications, C is essential for induct applications, whereas B is highly recommended in ducted applications.

2.Field wiring from the humidistat to the humidifier and between devices should be a minimum of 18 AWG and kept as short as possible.

3.Low voltage control terminal strips are provided in the electrical compartment. Internal sides are factory wired. External sides are for field wiring. (See Figure #14).

4.Each humidifier is supplied with a wiring diagram inside.

Control Installation

1.Wall Humidistat: Mount any wall humidistat (control or high limit) over the standard electrical box at a height similar to a typical thermostat. Any wall humidistat should be in a location representative of overall space being humidified and not in the path of the blower pack or air supply grille. Do not mount on an outside wall where temperature fluctuation can affect the control response.

2.Duct Humidistat: Mount the duct humidistat In a location representative of overall air humidity, (usually the return duct). Do not mount it directly in front of the steam distributor or in a turbulent or mixing zone. Mount it where the air’s humidity and temperature are uniform and representative of spaces being humidified.

3.High Limit Duct Stat: Mount the duct high limit humidistat downstream of the steam distributors far enough that, under normal humidity and air flow conditions, steam will have been fully absorbed (typically at least 10 feet). It must be located to sense high humidity only when uniform and representative air is over-humidified or approaching saturation.

4.Duct Air Proving Switch: Mount the duct air-proving switch so that it is able to sense air flow or lack of it. Wire it to close when air flow is sensed and open when air flow fails.

5.Check operation of all on/off controls before starting the humidifier.

Note: For wiring interface with a fan, see wiring diagram provided on page 13. Steam humidifier will turn on fan when increase in humidity is required.

OPERATION

INTRODUCTION

The NORTEC RESDELUX humidifier 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 and low waste of water and electricity.

RESDELUX OPERATION

When the humidifier is first turned on, the controller starts with a self test procedure, which takes about 10 seconds. The test consists of activating for a short time the drain valve, fill valve, and power relays. The sound of the working solenoids is an indication of

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Contents Installation, Operation Maintenance Troubleshooting Guide Table Of Contents Page Humidifier Configuration InstallationPRE-INSTALLATION Checkpoint Receiving & Unpacking EquipmentSteam Distributor Nozzle in duct location MinBlower Pack Connection Steam Hose InstallationCondensate Hose supplied Cabinet Mounting of the Blower PackRemote Mounting of the Blower Pack Table #1 Clearances of Remote Mounted Blower PackWater Supply Line PlumbingDrain Line Electrical LOW Voltage Control Wiring and InstallationControl Wiring Electrical Requirements for Permanently Connected ResdeluxIntroduction Control InstallationOperation Resdelux OperationWhen to Replace the Steam Cylinder MaintenanceManual Capacity Adjustment Steam CylinderHOW to Remove the Steam Cylinder HOW to Install the Replacement CylinderMandatory Cleaning of the Drain Valve Extended ShutdownTroubleshooting Diagnostic Procedures TroubleshootingProcedures and Terms Used Diagnosing L1 N Transformer Spare Parts List and Exploded View Resdelux Item Number Part Number Description21a 21b 21c 13a 13d 13e 13b 13c 11b 11a 12 12a 14a Periodic Maintenance Checklist Inspect, Check, Clean, and Adjust all items listedLimited Warranty MTH/DAY/YR

Steam Humidifiers specifications

Nortec Steam Humidifiers are recognized for their robust performance and reliability in providing precise humidity control for various applications. These advanced humidification systems utilize state-of-the-art technology to ensure optimal indoor air quality in commercial, industrial, and institutional environments. One of the standout features of Nortec Steam Humidifiers is their ability to produce high-quality steam through an efficient and consistent process.

The humidifiers employ a direct steam generation method, which allows for rapid humidity delivery and precise control over output levels. This is particularly beneficial in settings such as hospitals, laboratories, and manufacturing facilities, where specific humidity levels are critical for operational success. The steam produced is free from impurities and is ideal for various applications, including protecting sensitive equipment, preserving materials, and enhancing comfort for occupants.

Another notable characteristic of these humidifiers is their compact design. Nortec Steam Humidifiers are engineered to occupy minimal space while maintaining high productivity. Furthermore, they are equipped with advanced controls and monitoring systems that enable users to customize settings according to their specific needs. This includes options for modulating steam output according to the changing requirements of the environment.

The humidifiers also feature a user-friendly interface, allowing for easy adjustment and monitoring of system performance. High-precision sensors measure humidity levels accurately, ensuring that the output is consistently matched to the desired set point. Nortec Steam Humidifiers are designed with energy efficiency in mind, using innovative technologies to minimize energy consumption while maximizing steam output.

In terms of maintenance, Nortec provides easy access to key components, ensuring that routine checks and servicing can be completed efficiently. The use of advanced materials in the construction of humidifiers contributes to their durability and long operational lifespan. Integration with building management systems is also possible, allowing for seamless operation within a larger environmental control strategy.

In summary, Nortec Steam Humidifiers stand out in the market due to their innovative technologies, precise humidity control, energy efficiency, and ease of maintenance. These features make them an ideal choice for a wide array of humidification needs, ensuring excellent air quality and comfort in any setting. With their commitment to quality and reliability, Nortec continues to be a leader in the humidification industry.
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