Related Manuals for Stulz DAH
Summary of Contents for Stulz DAH
- Page 1 DAH Series Ducted Air Humidifier GEN2 Installation, Operation and Maintenance Manual Ultrasonic Humidification Installation, Operation and Maintenance Manual...
- Page 2 STULZ Air Technology Systems, Inc. (STULZ). This document contains confidential and proprietary information of STULZ Air Technology Systems, Inc. Distributing or photocopying this document for external distribution is in direct violation of U.S. copyright laws and is strictly prohibited without the express written consent of STULZ.
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Page 3: Table Of Contents
Drain and Overflow Assembly ......................4 Temperature Sensor ........................5 Solid State Relay ........................... 5 Level Controller ..........................5 Booster Fan (Optional DAH-24/30 Only) ..................6 Mounting Rack (Optional) ......................7 Installation ............................... 8 Receiving the Equipment ........................8 Site Preparation ............................ 8 Mounting and Placement ........................ - Page 4 Drawings ..............................27 Unit Component Layout Drawing of Humidifier (Exploded View) ............27 DAH-04/16 - Typical Wiring Diagram for Modbus Version ............28 DAH-04/16 - Typical Wiring Diagram for Stand-Alone Version ........... 29 DAH-24/30 - Typical Wiring Diagram for Stand-Alone Version ........... 30 DAH-24/30 - Typical Wiring Diagram for Stand-Alone Version ...........
- Page 5 Series GEN 2 Ultrasonic Humidifier IOM Manual Nomenclature DRH-04-S Number of Transducers (Blank) = Ultra Series Ducted Air Ducted Air 04, 08, 12, 16, Control Humidifier Humidifier 24, 30 S = Stand Alone...
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Page 6: Introduction
AHU or mounted in the air distribution ductwork. Any use beyond this is deemed to be not intended. STULZ is not liable for any damage resulting from improper use. The system is designed to be installed indoors unless otherwise noted on the equipment nameplate. -
Page 7: Figure 1. Ultrasonic Humidifier Model Dah-16
Do not attempt to make repairs without the proper tools. NOTE: STULZ offers no warranty protection on humidification systems using controls not provided by STULZ. CAUTIONS It is essential that De-ionized (DI) or Reverse Osmosis (RO) water be used as the supply water source to maintain full warranty coverage. -
Page 8: Specifications
Series GEN 2 Ultrasonic Humidifier IOM Manual Specifications Type DAH Series Ultrasonic Humidifier Model Model DAH-04 DAH-08 DAH-012 DAH-16 DAH-24 DAH-30 Nebulizing capacity, lb/h 10.6 15.8 21.1 30.8 39.6 Qty. of ultrasonic nebulizers/unit Power source, VDC Rated power consumption, W Weight, lb 15.4... -
Page 9: General Design
fine mist to be delivered into the room by the laminar airflow of an AHU fan. DAH humidifiers may be mounted in the air distribution ductwork or rack mounted in the AHU. For large AHU applications with low AHU air velocity, ultrasonic humidifier models DAH-24 and DAH-30 may be equipped with an optional booster fan to propel the mist out. -
Page 10: Temperature Sensor
Series GEN 2 Ultrasonic Humidifier IOM Manual outlet. The drain valve solenoid is controlled by the Level Controller to drain water from the tank via the drain outlet. If the water level in the tank exceeds the height of the overflow pipe, the excess water is diverted to the drain outlet. -
Page 11: Booster Fan (Optional Dah-24/30 Only)
Booster Fan (Optional DAH-24/30 Only) DAH Series Ultrasonic Humidifiers are to be installed in air handlers or air ducts designed with a terminal velocity of 450 to 750 FPM across the humidifier so the mist is readily eliminated by the pressure drop caused by the air passing over the mist guide. -
Page 12: Mounting Rack (Optional)
Series GEN 2 Ultrasonic Humidifier IOM Manual Mounting Rack (Optional) A multi-tier mounting rack can be provided. This enables the assembly of 1 to 5 ultrasonic units together for installation in an AHU or in an air duct. The mounting rack (Figure 2) is designed to support the total weight of the humidifiers mounted to it. It establishes the optimal spacing between units to ensure efficient operation. -
Page 13: Installation
We are not liable for any equipment damage while in transit. We can assist in the claim filing process with the freight carrier. Should any such damage be present, notify Product Support by fax (301) 620-1396, telephone (888) 529-1266 or E-mail (parts@stulz- ats.com).prior to attempting any repairs. - Page 14 Series GEN 2 Ultrasonic Humidifier IOM Manual the overall area of the duct because they lower the available area and raise the air velocity. If air velocity exceeds 750 FPM. The duct cross sectional area must be increased so the face velocity falls within the recommended range (Figure 4 and Figure 5).
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Page 15: Mounting And Placement
Series GEN 2 Ultrasonic Humidifier IOM Manual Mounting and Placement Ultrasonic humidifiers are designed for mounting to a flat surface. Ensure the mounting surface is capable of supporting the weight of the unit. Weight estimates can be found on the installation drawing provided with your unit. -
Page 16: Figure 5. Duct Mounting - Vertical Arrangement
Series GEN 2 Ultrasonic Humidifier IOM Manual VERTICAL ARRANGEMENT SIDE VIEW See Note NOTE: Provide access panel sufficient for units to be removed. ISOMETRIC VIEW Figure 5. Duct Mounting — Vertical Arrangement CASCADE ARRANGEMENT SIDE VIEW NOTE: Provide access panel sufficient for units to be See Note removed. -
Page 17: Supply And Drain Piping
Series GEN 2 Ultrasonic Humidifier IOM Manual Supply and Drain Piping The Ultrasonic Humidifier will require a field-installed water supply line and overflow drain line. Refer to the piping diagram provided with your unit for details. For the water supply, use DI or RO water. The water supply to the humidifier cannot be taken directly from the public water service. -
Page 18: Main Power And Control Wiring
All wire sizes listed are for stranded, THHN or NTW wire only. (Do not use solid conductor wire.) For distances over 75 feet, contact Product Support for assistance by fax (301) 620-1396, telephone (888) 529-1266 or E-mail (parts@stulz-ats.com). In addition to the above power wires, humidifiers controlled by the Ultra-Series control box use RJ45/CAT5 data communication cables, daisy chained from the humidifier(s) to the control box. -
Page 19: Connecting Humidifier(S) To Control Box
As a standard, GEN2 Ultrasonic humidifiers are equipped with a twist lock power connector and two RJ45 ports for data communication. The Ultrasonic Humidifier control box will also be equipped with an RJ45 port for data communication. DAH Series Ultrasonic Humidifiers are designed to be installed in an AHU or in discharge ductwork. -
Page 20: Single Humidifier
Series GEN 2 Ultrasonic Humidifier IOM Manual Single Humidifier Once the Ultrasonic Humidifier and control box are installed, the total 48VDC wire length and wire size (AWG) should be determined using the table below. A junction box (not provided) is necessary in the AHU or ductwork to make the connection between the field-installed 48VDC power wiring and the factory provided humidifier power cable. -
Page 21: Operation
This allows water to flow to the humidifier. Perform a manual drain cycle to flush any particulates from the tank using the system controller (see STULZ Ultra-Series Controller IOM Manual OUU0078). Set the humidity setpoint to the desired humidity level. -
Page 22: Precautions
Series GEN 2 Ultrasonic Humidifier IOM Manual Atomized mist is visible from the mist outlet. Check the humidifier parts, supply water piping and drain piping for signs of leaking water. Check to see that the mist diffusion is good and no obstacles are directly exposed to the mist. CAUTION Do not block the outlet of the mist;... -
Page 23: Maintenance
Testing insulation resistance and dielectric withstand voltage should be avoided because the humidifier incorporates sensitive electronic parts. When parts are replaced, genuine STULZ parts must be used. Contact Product Support by fax (301) 620- 1396, telephone (888) 529-1266 or E-mail (parts@stulz-ats.com) for assistance. -
Page 24: Maintenance Items And Tools
Series GEN 2 Ultrasonic Humidifier IOM Manual Maintenance Items and Tools Item Cycle Required Tools Routine Maintenance Check water tank Once a month (or as required) if interior, mist outlet environment is dusty or water supply and electrical parts. quality is poor. Visually inspect water Inspect/clean every 3 months. -
Page 25: Electrical Parts
Series GEN 2 Ultrasonic Humidifier IOM Manual Electrical Parts Stop the humidifier. Set the control box disconnect switch to Off. Close the water supply valve. Drain the water tank. NOTE: Do not to splash water on the electrical parts. Loosen the mist guide cover mounting screws from the top of the humidifier and remove it (Photo 1). -
Page 26: Float Switches
Series GEN 2 Ultrasonic Humidifier IOM Manual Float Switches 1. Perform steps 1 to 3 in the Electrical Parts section. 2. Loosen and remove the float panel mounting screws (2 pieces, Photo 6). NOTE: Don’t let the screws drop into the tank 3. -
Page 27: Troubleshooting And Repair
Series GEN 2 Ultrasonic Humidifier IOM Manual Troubleshooting and Repair Should any issues occur, see the troubleshooting and repair tables below to resolve the issue. WARNING Turn off power when undertaking any repairs. Check the humidifier and the surrounding area. Issue Cause Checking... - Page 28 10,000 to 15,000 hours as the point of reference. If the cause cannot be identified, contact Product Support. at (888) 529-1266 or email TechnicalSupport@stulz- ats.com. If the humidification system is supplied with a water conductivity sensor (optional), ensure the sensor is operating...
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Page 29: Common Repairs And Parts Replacement
Series GEN 2 Ultrasonic Humidifier IOM Manual Common Repairs and Parts Replacement In preparation for replacing parts, first see Electric Parts Strainer/Flow Regulator and follow steps 1 to 4. Inlet Fitting Preparation for Repairs (Removal of Water Tank) Review A.1 Layout Drawing of Humidifier (Exploded View) for Supply Tubing an overview of the humidifier’s main parts. -
Page 30: Temperature Sensor On Water Tank
Series GEN 2 Ultrasonic Humidifier IOM Manual Temperature Sensor on Water Tank The temperature sensor is mounted on the front of the tank near the float switches. Carefully cut the wire tie holding the sensor cable and remove the nylon screw holding the sensor in place. Remove the sensor and save the mica pad and nylon screw to mount the new sensor (Photo 15). -
Page 31: Replacing A Nebulizer Print Plate
Series GEN 2 Ultrasonic Humidifier IOM Manual Replacing a Nebulizer Print Plate Referring to Preparation for Repairs (Removal of Water Tank) section. steps 1 - 5, Preparation for Repairs, place the water tank on a well-lit, padded work surface. Using a 5.5 mm nut driver, remove the print plate mounting nuts (2 pieces) and remove the plate. -
Page 32: Drain Solenoid Valve
Series GEN 2 Ultrasonic Humidifier IOM Manual Outlet Elbow Drain Solenoid Valve 1. To replace the drain solenoid valve, remove the water tank and lay it on its side. 2. Using a 5.5 mm nut driver, remove the nuts holding the two valve outlet adapters. -
Page 33: Product Support
If it is determined that the part may be an issue a replacement part will be sent via UPS ground. If the customer requests that warranty part(s) be sent by any other method than UPS ground the customer is responsible for the shipping charges. If you do not have established credit with STULZ you must give a freight carrier account number. - Page 34 When returning defective part(s) complete the Return Material Authorization (RMA) number and the address label received with the replacement part. Purchase Order Number Date of Order STULZ Stated Part Price Customer Billing Address Shipping Address Customer’s Telephone and Fax Numbers...
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Page 35: Obtaining Spare And Replacement Parts
Fax: (301) 620-2606 Phone: (888) 529-1266 E-mail: parts@stulz-ats.com Quotes are given for specified listed parts for a specific unit. We accept Visa and MasterCard. We may extend credit to its customers; a credit application must be prepared and approved (this process could take one week). -
Page 36: Drawings
Series GEN 2 Ultrasonic Humidifier IOM Manual Drawings Unit Component Layout Drawing of Humidifier (Exploded View) The numbers in the drawing above coincide with the item numbers listed below. Electric Box Cover Mounting Foot Power Connector Hole For Drain Stub Lock Nuts Drain Stub Mist Guide Cover... -
Page 37: Dah-04/16 - Typical Wiring Diagram For Modbus Version
Series GEN 2 Ultrasonic Humidifier IOM Manual DAH-04/16 - Typical Wiring Diagram for Modbus Version... -
Page 38: Dah-04/16 - Typical Wiring Diagram For Stand-Alone Version
Series GEN 2 Ultrasonic Humidifier IOM Manual DAH-04/16 - Typical Wiring Diagram for Stand-Alone Version... -
Page 39: Dah-24/30 - Typical Wiring Diagram For Stand-Alone Version
Series GEN 2 Ultrasonic Humidifier IOM Manual DAH-24/30 - Typical Wiring Diagram for Stand-Alone Version... -
Page 40: Dah-24/30 - Typical Wiring Diagram For Stand-Alone Version
Series GEN 2 Ultrasonic Humidifier IOM Manual DAH-24/30 - Typical Wiring Diagram for Stand-Alone Version... - Page 41 Series GEN 2 Ultrasonic...
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