Armstrong World Industries EHU-704, EHU-700 Series, EHU-703 manual Water Fill Supply, Connect Drain

Page 7

6)WATER FILL SUPPLY

Connect the unit to the building water supply (25 to 125 psig pressure). Install a shut-off valve near the humidifier. Connect the water supply to the 3/8" tube compression fitting on the fill valve adaptor.

NOTE: ORDINARY (POTABLE) TAP WATER IS RECOMMENDED. IF POTABLE WATER IS NOT AVAILABLE, CONSULT THE FACTORY (SEE "WATER QUALITY AND TREATMENT SECTION OF THIS MANUAL, PAGE 23, FOR MORE INFORMATION). DO NOT USE BRACKISH OR CONTAMI- NATED WATER.

7)CONNECT DRAIN

Connect to a suitable waste draining system. Use the clear drain hose provided and a 1" copper pipe (Figure 7-1), pitched 1"per foot. The drain water may be as hot as 160°F. Drain it where it will not present a hazard to personnel. An air gap to prevent backflow is required if drain water is required to be less than 140°F, use

of Temp-R-Drain will be required.

8)INSTALL THE STEAM DISPERSION TUBE NOTE: Please contact factory for duct applications offering high static pressures (>4"WC).

a.Verify that the proper length and type of steam dispersion tube has been selected: See Chart 7-1 for proper dispersion tube lengths. The low capacity dispersion tube (Figure 7-2) is sloped toward the generator to allow for gravity drainage.

On applications where the humidifier output capacity is greater than 40 Ibs/hr, a high capacity tube with a ½"O.D. drain tube must be used (Figure 7-3). Drain tube must have minimum 6" water seal (see Fig. 8-3).

b.Select a location on the duct that provides adequate length for vapor mixing and the shortest connection length for vapor mixing and the shortest connection length to the humidifier. Preferably the location should be 6" downstream and/or 10 feet upstream from any dampers, vanes, bends in the duct, or controllers (i.e. high limit stat). See page 10 for details. Do not install the dispersion tube into ducts in which airflow exceeds 2,000 fpm. Do not restrict airflow in ducts with a depth of 8 inches or less. Avoid placing manifold in downward, high velocity air flow as dynamic air pressure will restrict steam flow.

Figure 7-1

1" I.D. Clear Hose Supplied with Unit

Fit Hose Inside

1-1/2" Pipe

1" or Larger Copper Pipe

Chart 7-1. Selecting Proper Steam Dispersion Tube

Steam

Steam Disp.

 

 

Duct Width

 

Weight

Disp. Tube

Tube Length

 

Min.

Max.

 

 

 

Model No.

in

mm

in

 

mm

in

mm

lb

kg

D-1

12

304

11

 

279

16

406

3

1.4

D-1.5

18

457

17

 

432

22

559

3

1.4

D-2

24

609

23

 

584

34

864

4

2

D-3

36

914

35

 

889

46

1168

6

3

D-4

48

1219

47

 

1194

58

1473

8

3.6

D-5

60

1524

59

 

1499

70

1778

9

4

D-6

72

1829

71

 

1803

82

2083

10

4.5

D-7

84

2133

83

 

2108

94

2388

11

5

D-8

96

2438

95

 

2413

106

2693

12

5.5

D-9

108

2743

107

 

2718

118

2998

13

6

D-10

120

3048

119

 

3023

130

3302

14

6.4

 

 

 

 

 

 

 

 

 

 

Figure 7-2

 

 

6.00

Ø.22

L

 

 

4 Places

 

 

6.00

5.25

 

 

 

5.25

Ø1.75

 

Hole in Duct

 

 

 

 

For Steam Capacity

 

 

40 lb/hr or Less

 

Figure 7-3

 

 

6.00

Ø.22

L

2.00

R.88

4 Places

 

 

 

6.00

5.25

 

 

3.50

3.50

 

 

 

1.00

 

 

 

R.37

 

 

1.50

5.25

Hole in Duct

 

 

 

For Steam Capacity

 

 

Above 40 lb/hr

7

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Contents Installation and Maintenance Metal Tools Away from These Areas Table of Contents Site Selection PRE-INSTALLATIONCheck Shipment Check Local CodesWater Total Important Please observe the following InstallationElectrical Service Wiring Mounting the HumidifierConnect Drain Water Fill SupplyPressure in duct is high, see Figure Control Humidistat Control WiringWall Mounted Control Humidistat 10 FtDuct Mounted Control Humidistat Airflow SwitchHigh Limit Duct Humidistat Generator a Audible AlarmInstrument Panel Before Turning on the Power START-UP Procedure for Armstrong Series EHU-700 HumidifiersTurn on Power AT the Circuit Breaker Page Page Troubleshooting Guide Tank Contactor Operation Operational GuidelinesMonitoring Stat Demand Automatic Drain Operation Monitoring % PowerManual Drain Mode Monitoring CurrentC00 Normal Operation C01 High Water EHU-700 DiagnosticsDiagnostic Display Messages C02 Tank Needs CleaningC07 Overcurrent Failure C04 High Limit CircuitC05 Drain System Failure C06 Fill System FailureC09 I/O Diagnostics Water Quality and Treatment for EHU Series Humidifiers When Water Conductivity is TOO LOWGeneral Remedies When Water Conductivity is TOO HighResults RemedySteam Generator Parts Valves and Mechanical Parts Electrical Parts EHU-700 Parts List Month to 1 Year MaintenanceRecommended Maintenance Schedule To 2 Days After Start UP Steam Generator MaintenanceTank Removal and Replacement ALL Models Steam Generator Chemical Cleaning Procedure Page Models EHU-703 and 704, Single and Three Phase Tank DISASSEMBLY, CLEANING, and Electrode ReplacementFill and Drain System Repair Model EHU-701, Single and Three PhaseDrain System Failure Fill System Failure Sensor Failure Protection Autocal ProcedureSpecifications Humidistat DataSensor Characteristics DimensionsAIR Supply High Limit Humidity Sensor Humidity SET Point Reset by Outside TemperatureHumidistat model number H270-69-13-10-31 Application ExampleDimensional 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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