BLOWER PACKS For All Atmospheric Humidifiers Installation Manual 2008-04-28 2525151-B
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. All references to the NORTEC name should be taken as referring to WALTER MEIER LTD.
TABLE OF CONTENTS Subject Page 10-00 OVERVIEW 1. OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A. B. C. D. E. BLOWER PACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 REMOTE MOUNTED BLOWER PACKS - WALL MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . 3 REMOTE MOUNTED BLOWER PACKS - STEAM LINE . . . . . . . . . . . . . . . . . . . . . . .
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1. OVERVIEW A. BLOWER PACK (1) Blower packs are an optional accessory used to directly distribute steam to localized areas or in structures that do not have a built-on air distribution system. (2) Blower packs are available factory installed (“built-on”) or for remote mounting. Remote blower packs are field piped to the humidifier. Built on Blower Packs are available with NHTC & NHPC humidifiers only.
B. REMOTE MOUNTED BLOWER PACKS – WALL MOUNTING (1) Steam and condensate line connections are on the bottom of the blower pack. The condensate connection is 3/8” and the steam lines are 7/8” or 1 ½” depending. Ensure that the knock out on the steam inlet has been removed prior to use. (2) To wall mount the Remote Blower Pack use 2 #12 x 3” long wood screws, supplied by others. These screws must be fastened securely on a 2 x 4 wood stud or equivalent support.
Figure 3. Steam Line Installation Figure 4. Steam Hose Installation Figure 5. Condensate Removal Figure 6.
(8) For electric humidifiers (NHTC & NHPC only) using a small size blower pack (<30 lbs/hr), steam lines require 7/8” O.D. (Nominal ¾”) copper tubing. For steam runs longer than 20 ft, use insulated nominal 1” copper to ensure draining of condensate. (9) When using the GS, SE, or NHRS Humidifiers with a RO / DI water supply, all steam lines should be in stainless steel. (10) Do not use plastic pipe for steam distribution or hose other than NORTEC supplied. Substitution will void warranty.
(5) For NH Series use approved wire for power connection from two pole terminal block of remote blower pack to additional two pole terminal block inside electrical section of humidifier. (6) For NH Series use approved wire to connect from ground clamp of remote mounted blower pack to ground clamp provided in the electrical section of humidifier.
Figure 7.
Figure 8. Blower Pack Spare Parts & Exploded View - Rev.
Table 1. Blower Pack Replacement Parts Item Part Number Description Qty 1a 2522064 Transformer 100VA 115V - 208, 230, 277, 460, 575V 60 Hz For all models except 380V. 1 1b 2524204 Transformer 100VA 115V - 380V, 50-60Hz For 380V models only. 1 2 2524082 Fuse, 1 amp, 600V, HCTR Slow Blow 2 3 1583126 Fuse, 1.5 amp 2 4 2522070 Relay, 30A, 115V SPDT 1 5 1073005 Thermostat (Replace 1475005 - O-ring for thermostat at same time.
Figure 9. Wiring Diagram – Blower Pack Internal Wiring / External Connections Wiring Diagram 2524117 Rev.
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WARRANTY (1) WALTER MEIER INC. and/or WALTER MEIER LTD. (hereinafter collectively referred to as THE COMPANY), warrant for a period of two years after installation or 30 months from manufacturer’s ship date, whichever date is earlier, that THE COMPANY’s manufactured and assembled products, not otherwise expressly warranted (with the exception of the cylinder), are free from defects in material and workmanship.
U.S.A. Walter Meier (Climate USA) Inc. CANADA Walter Meier (Climate Canada) Ltd. 826 Proctor Avenue Ogdensburg, NY 13669 TEL: 1-866-NORTEC-1 EMAIL: northamerica.climate@waltermeier.com WEBSITE: www.humidity.
