Mh series evaporative humidifier / cooler (7 pages)
Summary of Contents for Nortec NHRS Series
Page 1
Manual No. H-104 2008-02-18 NHRS Series RESISTIVE ELEMENT STEAM HUMIDIFIER Engineering Manual...
Page 2
PROPRIETARY NOTICE This document and the information disclosed herein are proprietary data of WALTER MEIER LTD. Neither this document nor the information contained herein shall be reproduced used, or disclosed to others without the written authorization of WALTER MEIER LTD., except to the extent required for installation or maintenance of recipient’s equipment.
LED. This ensures correct operation of the drain pump and reading of the floats by the micro-computer (7) Then, relying on feedback from the signal received by the humidifier, the internal controller will ensure operation of the contactors to power heating elements.
This allows the unit to easily interface with a Building Automation System. For more accuracy, the set-point is controlled at the humidifier and the integrated controller can accept a direct transducer signal. The accuracy of the humidifier to changing conditions will be dependant on the accuracy of the signal.
Each time a NORTEC NHRS humidifier is started, it automatically undergoes a self-test. It checks the correct operation of the PC board and other components including the fill valve and drain pump. The humidifier will display system faults with the alphanumeric display and the indicator lights.
The NHRS can be used with stainless steel distributors or SAM-e manifolds for short absorption distance. The distance between the humidifier and the steam distribution system should not exceed 15 feet for accurate humidity control. Refer to the Steam Distribution Engineering Manual (Form #XX-232) or the H.E.L.P.
1. HUMIDIFIERS A. GENERAL Work Included NORTEC NHRS Resistive Element steam humidifier[s] as indicated on drawing[s] and as indicated on schedule[s]. Complete and operable humidification system [which meets applicable building codes]. Equipment start-up and project inspection by qualified factory trained representative.
Revise locations and elevations to suit field conditions and to ensure proper humidifier operation. XXXXX OR XXXXX Coordinate location and installation of humidifier in the space it serves with the electrical, mechanical, and plumbing contractors. B. PRODUCTS RESISTIVE STEAM HUMIDIFICATION SYSTEM NORTEC MODEL NHRS Packaged unit, wall mounted, electric steam generating system, suitable for use with potable, De-Ionized (DI), and Reverse Osmosis (RO) water.
Examine ducts, air-handling units, and conditions for compliance with requirements for installation tolerances and other conditions affecting performance. Examine roughing-in for piping systems to verify actual locations of piping connections before humidifier installation. Proceed with installation only after unsatisfactory conditions have been corrected. INSTALLATION Install humidifiers and steam dispersion panels per manufacturers’...
Page 22
Seal humidifier dispersion-tube duct penetrations with flange. Install with required clearance for service and maintenance. TESTING System verification testing is part of the commissioning process. Verification testing shall be performed by the Contractor and witnessed and documented by the Commissioning Authority. Refer to section 01810, Commissioning, for system verification tests and commissioning requirements.
C. MODULATING TRANSDUCER 1509858 – 2-10 VDC wall sensor with digital display, controlled through the humidifier via the LCD display, the sensor can accurately read relative humidity set-points between 0-100%. The digital display will show the current space condition along with the magnitude of the transducer signal being sent to the humidifier.
150-4561 - This feature allows the water temperature in the tank to be maintained at 160ºF (70ºC) for quick response from the unit upon a call for humidity. REMOTE FAULT INDICATION PACKAGE 150-8069 - This option provides four relays to monitor the humidifier remotely. Relays are: Steam Production...
F.O.B. THE COMPANY’s factory, providing the defective part(s) is returned freight prepaid by the customer. Parts used for repairs are warranted for the balance of the term of the warranty on the original humidifier or 90 days, whichever is longer.
Page 26
U.S.A. Walter Meier (Climate USA) Inc. 826 Proctor Avenue Ogdensburg, NY 13669 TEL: 1-866-NORTEC-1 EMAIL: northamerica.climate@waltermeier.com WEBSITE: www.humidity.com CANADA Walter Meier (Climate Canada) Ltd. 2740 Fenton Road Ottawa, ON K1T 3T7 TEL: 1-866-NORTEC-1 FAX: (613) 822-7964 Authorized Agent:...