
READ AND SAVE THESE INSTRUCTIONSVAPORMIST® andVAPORMIST DIELECTRIC STEAM HUMIDIFIERSInstallation, OperationandMaintenance ManualFor toll-free technica
10IntroductionAfter the system has been properly installed and connectedto both electrical and water supplies, it may then be started.Start-up and che
11MAINTENANCEThe best way to determine how often your particularsystem will need maintenance is to remove the cover andinspect it after its first thre
12MAINTENANCEStandard water models (VAPORMIST, cont.)Off-season shut-down procedure1. Switch off electrical power.2. Remove enclosure.3. Shut off wate
13VAPORMIST® TROUBLESHOOTING GUIDENOTE: Probe rod corrosion or probe head material aging may cause level control system failure. This generally does n
14VAPORMIST® DI TROUBLESHOOTING GUIDEPROBLEM POSSIBLE CAUSE RECOMMENDED ACTIONHumidifier will not heat.Control transformer Reset control transformer c
15REPLACEMENT PARTSTable 15-1: Space Distribution Unit (SDU-E)Table 15-2: VAPORMIST® subpanel with SDU-E1213*Specify model size when ordering11783514
16REPLACEMENT PARTSOM-778-1 See tables on pages 17 and 18.VM ModelVMDI Model3121925673483422242820151611333231101825945133536121511272016172930232126
17REPLACEMENT PARTSTable 17-1: VAPORMIST® (see drawing on Page 16)* Specify humidifier model and serial numbers when ordering.NOTE: More replacement
18REPLACEMENT PARTSTable 17-1 continued: VAPORMIST® (see drawing on page 16)* Specify humidifier model and serial numbers when orderingNo. Descriptio
19REPLACEMENT PARTSTable 19-1: VAPORMIST® subpanel with SSROM-213-4No. Description Qty. Part No.1 Subpanel, VM99 barrier 1 1208012 Ground lug, L-35 1
2To the purchase and installerThank you for purchasing our VAPORMIST® humidifier. We have designed and built this equipment togive you complete satisf
20Form No. VM99OM-0600 Copyright © 2000 DRI-STEEM Humidifier Company Printed in U.S.A.TWO-YEAR LIMITED WARRANTYContinuous produc
3Figure 3-2: VAPORMIST DI humidifier (deionized water)The VAPORMIST DI humidifier shown here is specifically designed for use with deionized or revers
4Model Capacitylbs/hrCapacitykg/hrVapor hoseinchesVapor hoseDNVM 2-10 up to 30 up to 13.51½" hose kitwithout drainDN40 hosekit withoutdrainVM 12-
5INSTALLATIONFigure 5-1: Single-TubeMounting dispersion tube withoutcondensate drain• Connection can be made to the humidifierwith vapor hose or hard
6PIPING AND WIRINGWIRINGWater makeup piping may be of any code-approvedmaterial (copper, steel, or plastic). The final connectionsize is 1/4" NPT
7ELECTRICAL SPECIFICATIONS, CAPACITIES, DIMENSIONS AND WEIGHTSFigure 7-1: VAPORMIST® unit dimensionsTable 7-1: Electrical specifications, capacities a
8AREA-TYPE APPLICATION USING SPACE DISTRIBUTION UNITSSpace distribution units (SDUs) convert aVAPORMIST® duct humidifier into an area-typehumidifier.
9AREA-TYPE APPLICATION USING SPACE DISTRIBUTION UNITSSDU-I: Instant absorption, no visible vaporThe SDU-I (space distribution unit internal absorption
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