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HUMIDIFIER

WWW.CLEANCOMFORT.COM

Return Air

Return Air

Drain

Drain

Clean Comfort High Efficiency  

Media or Electronic Air Cleaner

Warm Air

Warm Air

Warm Air

DOWN FLOW

UP FLOW

IO-HE12-A

10/13

HE12 

Evaporative Bypass Humidifier 

Precaution: 

The installer should be an experienced service 

technician. DISCONNECT ELECTRICAL POWER  

BEFORE BEGINNING INSTALLATION. Do not 

install where temperatures fall below  

32° F / 0° C or where plenum temperatures 

exceed 150° F / 66° C. When wiring into a  

multi-speed blower circuit see Step 6. 

Installation: 

The humidifier may be mounted with the  

6˝ outlet to the right or left by inverting the 

cabinet and reversing the positions of the  

side panel. The humidifier may be mounted  

on the supply or return air plenum with  

equal efficiency.

FOR INSTALLATION ON A VERTICAL PLENUM 

SURFACE OF ANY FORCED AIR FURNACE 

Additional Materials That May Be Necessary: 

1.  1/4˝ diameter plastic supply tubing  

(or 1/4˝ copper supply tubing for hot  

water applications). 

2.  6˝ diameter galvanized by-pass pipe  

(provided with “B” models, which include    

a bypass kit). 

3.  18 Gage electrical wire and wire nuts 
4.  Current sensing relay (part number HEP-GA50 

suggested) or air pressure proving switch 

(part number HEP-12500 suggested). 

5.  #8 self piercing sheet metal screws. 

Proprietary Notice 

This document and the information disclosed herein are 

proprietary data of Daikin North America LLC. Neither this 

document nor the information contained herein shall be 

reproduced, used, or disclosed to others without the written 

authorization of Daikin North America LLC except to the 

extent required for installation or maintenance of recipient’s 

equipment. 

Liability Notice 

Daikin North America LLC does not accept any liability for 

installations of humidity equipment installed by unqualified 

personnel or the use of parts/components/equipment that 

are not authorized or approved by Daikin. 

Copyright Notice 

Copyright 2013, Daikin North America LLC All rights reserved. 

Typical Installation For Bypass Humidifiers

Important: 

  HVAC Installer:

 Read and save these instructions. This guide to be left with equipment owner. 

Equipment Owner:

 

Fill out and send  

  in the product registration card to register this product.

 

Product registration is required to get the benefits of the warranty, 

 

  except  that failure by residents of California or Quebec to register the products will not diminish their warranty rights.

See the full warranty text at your dealer or at the end of this document.

Summary of Contents for HE12

Page 1: ... number HEP GA50 suggested or air pressure proving switch part number HEP 12500 suggested 5 8 self piercing sheet metal screws Proprietary Notice This document and the information disclosed herein are proprietary data of Daikin North America LLC Neither this document nor the information contained herein shall be reproduced used or disclosed to others without the written authorization of Daikin Nor...

Page 2: ...ide top side in first then slide chassis down Level chassis and install center screws If by pass pipe installs to opposite side of chassis bend clip on chassis remove side discharge and reinstall discharge to opposite side of chassis Install remaining four corner screws Corner Screw Corner Screw Corner Screw Corner Screw Attach by pass pipe to humidifier here Corner Screw Corner Screw 2 4a Connect...

Page 3: ...be followed by compression sleeve 9 Insert tube into valve fully and tighten nut 10 Turn on water supply and check for leaks 4b 5 6 7A 7D Electronic Humidistat 7A To furnace control board 24 volts 7B To constant power using 24V transformer and pressure switch 7C To furnace control board 115 volts with 24V transformer 7D To constant power using 24V relay and current sensing relay 7E 7H Manual Humid...

Page 4: ...r than one heating season 4 In areas where the supply water for the humidifier contains a high mineral content OR if the solenoid valve fails to operate the solenoid and the strainer screen should be in spected and descaled To do this disconnect the 1 4 water supply line from the solenoid valve Carefully pull the strainer screen part number HEP GA19 from the valve HE12MB Models shipped to Canada a...

Page 5: ...ITY TOO HIGH DURING COLD WEATHER EXCESSIVE HUMIDITY MAY CAUSE CONDENSATION ON WINDOWS OR IN WALLS REFER TO RECOMMENDED SETTINGS AS DESCRIBED IN THE HUMIDISTAT OWNERS MANUAL 1 Verify water supply is on 2 Verify metering orifice is not obstructed Very hard water with high mineral content may restrict the metering orifice in as little as one heating season Replace metering orifice if restricted part ...

Page 6: ...R H 30 R H 15 1 2 13 3 4 13 1 4 8 7 8 9 1 2 Footnote If plenum temperature is less than 120 F 49 C the amount of humidity delivered to the home will be less than the GPD specification shown above HUMIDIFIER PACKAGED COMPONENT ACCESSORIES Model HE12A includes Humidifier components HEP GA10 Vapor pad HEP GA4040 solenoid assembly Integral Bypass Damper Accessories HEP GFX3 Automatic Digital Humidista...

Page 7: ...sistance Failure by California or Quebec residents to register the Product does not diminish their warranty rights How to Obtain Service Contact the contractor from whom you purchased the Products s or Contact Daikin using the information below What Daikin Will Do If the Product s covered by this limited warranty are not as warranted and you notify Daikin of such failure during the term of the lim...

Page 8: ...______________________________________________ Address 2 _____________________________________________________________________________ City _______________________________ State __________________ Zip Code ___________________ Phone ________________________________________________________________________________ Email ________________________________________________________________________________ ...

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