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To the user of PURE Humidifier Co.’s Electric Humidifiers 

 

We at PURE Humidifier Co. thank you for choosing one of our quality products.  PURE Humidifier Co. 
humidifiers are simple to install, operate, and maintain.  However, they must be maintained to provide maximum 
operating efficiency. 

 

PLEASE READ AND FOLLOW ALL   INSTRUCTIONS CAREFULLY. PROPER OPERATION AND HUMIDITY 
CONTROL IS POSSIBLE ONLY WITH PROPER INSTALLATION AND MAINTENANCE.   

 
To ensure proper installation of this product, it must be installed by qualified HVAC and electrical contractors, 
and must be in compliance with local, state, federal, and governing codes.  If installed improperly this product 
may cause damage to property, severe personal injury, or death as a result of electric shock, burns, and/or fire. 
 

High chloride content in

 

boiler steam condensate carryover can cause chloride stress cracking and 

chloride pitting in stainless components.  Chloride stress corrosion cracking (CSCC) and chloride 
pitting of stainless steel components is not covered by warranty.   Do not use hydrochloric acid 
descalers or bleach to clean the tank.  Consult the factory if you are unsure about which chemical 
descaler to use. 

 

 

The PURE Humidifier Co. Warranty 
 

PURE Humidifier Co. guarantees its products to be free from defects in material and workmanship for a period of 
two years from the date of shipment; provided the product is properly installed, serviced, and put into the service 
for which it was intended. 

 

PURE Humidifier Co. is obligated under the terms of this warranty to the repair or replacement of the defective 
part(s), excluding any labor charges, or to refund the purchase price at our option.  PURE Humidifier Co. 
assumes no obligation for incidental or consequential damages.  The above provisions are in lieu of all other 
guarantees, obligations, liabilities or warranties, expressed or implied. 

Table of Contents 

 
 
Introduction 1 
Non-Wetting Distance Charts 

Mounting Instructions 

Component Identification 

Header & Bracket Support Detail 

Installation Tips/Controls 

Troubleshooting 7 
Maintenance 8 
 

Introduction 

Summary of Contents for INSTY-PAC

Page 1: ...gravity to an open drain condensate cannot be elevated 4 Each condensate connection must have it s own steam trap Condensate connections cannot be combined together to a common steam trap 5 A common...

Page 2: ...cking CSCC and chloride pitting of stainless steel components is not covered by warranty Do not use hydrochloric acid descalers or bleach to clean the tank Consult the factory if you are unsure about...

Page 3: ...70 80 85 Relative Humidity Leaving Relative Humidity Leaving Relative Humidity Entering Relative Humidity Entering Non Wetting Distance With a Insty Pac Tube Assembly Having 6 Centers The above is ba...

Page 4: ...wall for the supply connection If the alternate horizontal condensate drain connection is supplied cut a 1 1 16 diameter hole through the AHU or duct wall for the drain connection see Fig 3 3 Install...

Page 5: ...supply inlet 5 Duct plate condensate 1 6 Tube support bracket 1 per tube bank 7 Flexible connector 1 per tube 1 NPT valve connection 4 2 6 3 Fig 2 Tube drain connection 3 4 NPT Header drain connection...

Page 6: ...g bracket welded to header Notes 1 Center the multiple injection tube assembly in the duct height 2 The injection tubes should be mounted level within the duct or AHU 3 Install injection tubes with th...

Page 7: ...g VAV high limit humidistat is required A minimum velocity of 300 feet per minute is required to avoid saturation and excessive fog travel Controls Fan Interlock Switch PURE Humidifier Co recommends t...

Page 8: ...ure 5 Undersized humidifier 6 Automatic control valve not opening fully A Pneumatic valve operator leaking air B Valve stem sticking Humidifier Discharges Water 1 Faulty drainage A Return line pressur...

Page 9: ...is not leaking air b the valve closes off tightly c the stem packing is not leaking steam Valve Electric Should be inspected annually to confirm that the stem packing is not leaking and that the valv...

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Page 12: ...11 141 Jonathan Blvd North Chaska MN 55318 Tel 952 368 9335 Fax 952 368 9338 www purehumidifier com...

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