Armstrong World Industries EHU-701 START-UP Procedure for Armstrong Series EHU-700 Humidifiers

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START-UP PROCEDURE FOR ARMSTRONG SERIES EHU-700 HUMIDIFIERS

The following steps should be performed on all newly installed Series EHU-700 Humidifiers to ensure that the humidifier and the entire humidification system functions correctly.

Figure 14-1

BEFORE TURNING ON THE POWER

1)Examine the wiring and the components in the electrical compartment.

2)Check for any loose wires or quick- connect terminals that may have been pulled loose.

3)Using a screwdriver, TIGHTEN ALL SCREW TERMINALS on the power supply terminal block, ground lug, and contactor (Figure 14-1).

 

Make sure all steam generator tank

 

connections are tight. Remember, a

 

loose joint is a HOT joint and could be a

Current

fire hazard!

Transformers

 

4)

Locate the low voltage terminal block

 

(Figure 14-1).

Low Voltage Terminal Block

Contactors

Power Supply Terminal Block

Verify that an airflow switch is connected between terminals 9 and 15 or that there is a jumper installed. If an airflow switch is installed, ensure that there is airflow.

Verify that a high limit stat is connected between terminals 10 and 14 or that a jumper is installed.

5)Turn on the water supply - Check for leaks.

TURN ON POWER AT THE CIRCUIT BREAKER

6)The following should happen:

a)The Demand Mode and Tank Off lights will be illuminated. The stat demand will be displayed.

b)If the stat demand displayed is greater than 35%, the Tank Off light will go out and a few seconds later the Fill Light will go on. The unit will begin to fill.

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Contents Installation and Maintenance Metal Tools Away from These Areas Table of Contents Check Local Codes PRE-INSTALLATIONCheck Shipment Site SelectionWater Total Mounting the Humidifier InstallationElectrical Service Wiring Important Please observe the followingWater Fill Supply Connect DrainPressure in duct is high, see Figure Control Wiring Control Humidistat10 Ft Wall Mounted Control HumidistatHigh Limit Duct Humidistat Airflow SwitchDuct Mounted Control Humidistat Audible Alarm Generator aInstrument Panel Turn on Power AT the Circuit Breaker START-UP Procedure for Armstrong Series EHU-700 HumidifiersBefore Turning on the Power Page Page Troubleshooting Guide Monitoring Stat Demand Operational GuidelinesTank Contactor Operation Monitoring Current Monitoring % PowerManual Drain Mode Automatic Drain OperationC02 Tank Needs Cleaning EHU-700 DiagnosticsDiagnostic Display Messages C00 Normal Operation C01 High WaterC06 Fill System Failure C04 High Limit CircuitC05 Drain System Failure C07 Overcurrent FailureC09 I/O Diagnostics General When Water Conductivity is TOO LOWWater Quality and Treatment for EHU Series Humidifiers Remedy When Water Conductivity is TOO HighResults RemediesSteam Generator Parts Valves and Mechanical Parts Electrical Parts EHU-700 Parts List Steam Generator Maintenance MaintenanceRecommended Maintenance Schedule To 2 Days After Start UP Month to 1 YearTank Removal and Replacement ALL Models Steam Generator Chemical Cleaning Procedure Page Tank DISASSEMBLY, CLEANING, and Electrode Replacement Models EHU-703 and 704, Single and Three PhaseDrain System Failure Model EHU-701, Single and Three PhaseFill and Drain System Repair Fill System Failure Humidistat Data Autocal ProcedureSpecifications Sensor Failure ProtectionDimensions Sensor CharacteristicsHumidity SET Point Reset by Outside Temperature AIR Supply High Limit Humidity SensorApplication Example Humidistat model number H270-69-13-10-31Dimensional Information

EHU-701, EHU-700 Series, EHU-704, EHU-703 specifications

Armstrong World Industries has long been a leader in the ceiling and wall solutions industry, and its EHU-700 Series exemplifies the commitment to innovation and quality. The EHU-700 Series, which includes models such as the EHU-703, EHU-704, and EHU-701, is designed for a variety of commercial applications, combining aesthetic appeal with superior performance characteristics.

One of the key features of the EHU-700 Series is its exceptional acoustic control. The panels are crafted using advanced sound-absorbing materials that effectively reduce noise levels in busy environments. This makes them ideal for areas such as offices, schools, and healthcare facilities, where quietness can significantly enhance productivity and comfort. The EHU-700 Series has been rigorously tested and certified to meet stringent industry standards, ensuring its effectiveness in noise reduction.

Additionally, these ceiling panels are designed with durability in mind. Made from high-quality components, the EHU-700 Series is resistant to moisture and staining, making them suitable for spaces exposed to humidity, such as kitchens and restrooms. This resilience ensures that the panels maintain their aesthetic appeal over time, reducing maintenance costs for facility managers.

The EHU-700 Series also incorporates Armstrong's innovative technologies to enhance ease of installation and flexibility. The panels feature a lightweight design, allowing for straightforward handling and installation. Compatibility with various grid systems ensures that the EHU-700 Series can be easily integrated into existing architectural designs, providing a seamless finish.

Another significant aspect of the EHU-700 Series is its commitment to sustainability. Armstrong World Industries emphasizes eco-friendly manufacturing processes and materials, allowing architects and builders to achieve green building certifications, such as LEED. The use of recyclable materials in the panel composition reflects a commitment to reducing the environmental footprint.

In summary, the EHU-700 Series, including the EHU-703, EHU-704, and EHU-701 models, showcases Armstrong World Industries' dedication to quality and innovation. With unparalleled acoustic performance, durability, installation convenience, and sustainability, these ceiling panels are ideal for a wide array of commercial environments, proving to be a valuable investment for modern architectural needs. Their combination of functionality and design ensures that they meet the demands of today's dynamic spaces.
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