User Guide

ManualsBrandsNu-Calgon ManualsCommercial Food Service Water Filtration SystemsNP48PC Micromet/Carbon Cartridge

Advantages of Treating Humidifiers with

Humidi-Treat or the NP Series:

• Reducesscaleaccumulation

• Lessfrequenthumidifiercleaning

• Helpsmaintaindesigncapacity

• Onecartridgelastsafullseason

• Veryeconomical

Application:

Evaporativepowerhumidifiersusingrecirculatedwateror

rotatingevaporativesurfacesareoftentroubledwithlossof

capacityandefficiencyduetostickingsolenoidvalvesand

thebuildupoflimescaledepositsonevaporativesurfaces.

Ifunchecked,theseproblemscaneventuallycausethe

humidifiertostopoperating.

Humidifiermanufacturersrecommendperiodicinspection

and,whennecessary,removalofscaledepositsthrough

cleaning.However,thefrequentcleaningnecessaryto

maintainratedcapacitycanbeverytimeconsumingand

costly.Thisinconvenienceisoftenamplifiedinareaswhere

thesupplywaterhasaparticularlyhighcontentofdissolved

solids.Alternatively,youcansavetimeandresolveissues

createdbyscaleaccumulationbyimplementingapreventative

maintenanceprogrambymeansoffiltrationwithNu-Calgon’s

Humidi-TreatorNPSeries.Propertreatment,incombination

withableed-off(a“draining-away”orperiodicdumpof

reservoirwater),reducesscalebuildupandremovessediment

tothepointwheretheynolongerconstituteamajorproblem.

Treating Smaller Humidifiers with Humidi-Treat:

Forhumidifiersystemsusingupto25gallonsofwater

perday,scaleinhibitioncanbeaccomplishedbyinstalling

Humidi-Treatonthewaterlinethatsupplieswaterdirectly

tothehumidifier.Beforeeachheatingseason,cleanthe

padorinstallanewpadbeforeinstallingHumidi-Treat.

HowtoTreatHumidifiers

Humidi-Treat and the NP Series are two solutions that Nu-Calgon offers

to resolve common scale difficulties that develop in humidifiers.

Select the appropriate product for your humidifier based on system capacity:

• Use Humidi-Treat in humidifiers with a daily water capacity less than or equal to 25 gallons.

• Use the NP Series in humidifiers with a daily water capacity greater than 25 gallons.

Please see reverse side for product information.

Humidi-Treat Installation Steps:

1. Shutoffwater.

2. Disconnectexistingfilterorcutwaterlinewhere

filteristobeinstalled.

3. InstallwaterlinedirectlyintotheJohnGuestfitting

ateachendoftheHumidi-Treatcartridge.

Noadditionalfittingsortoolsnecessary.

4. Insureproperdirectionofwaterflowandconnect

inletandoutlet.

5. Carefullyturnonthewaterandcheckforleaks.

6. Checkthefilterafterapproximately8hoursfor

slightleaksnotvisibleduringinitialinstallation.

Nu-Calgon Service Tips 3-246

2008AltomCt.•St.Louis,MO63146•800-554-5499•www.nucalgon.com

ProductNumber:4190-02

1/4inchJohnGuestfittings

Summary of content (2 pages)

PAGE 1
Nu-Calgon Service Tips 3-246 How to Treat Humidifiers Humidi-Treat and the NP Series are two solutions that Nu-Calgon offers to resolve common scale difficulties that develop in humidifiers. Select the appropriate product for your humidifier based on system capacity: • Use Humidi-Treat in humidifiers with a daily water capacity less than or equal to 25 gallons. • Use the NP Series in humidifiers with a daily water capacity greater than 25 gallons. Please see reverse side for product information.
PAGE 2
Description of the NP Series: The NP Series Housings are constructed of polypropylene plastic. The heads are tapped with FPT connections on the inlet and outlet and they are equipped with a pressure relief button to facilitate service. The NP24DD Housing has 3/8˝ FPT connections while the NP48DD Housing has 1/2˝ FPT connections. All are designed with “outside-in” directional flow of the water, resulting in more efficient filtering. Both are rated to 125 psi maximum pressure and 80ºF maximum temperature.