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E N G I N E E R I N G D A T A
Features
WARRANTY
All covered components - limited warranty for five
years in residential applications, one year in non-
residential applications.
Refer to the Lennox Equipment Limited Warranty
certificate included with the unit for additional details.
APPROVALS
Units are UL listed per ANSI/UL 998 and CSA C22.2
No.104-01.
APPLICATIONS
Applicable to most forced air installations.
Installs on the supply air plenum with a by-pass duct
from the return plenum in up-flow and horizontal
applications. Installs on the return air plenum with a
by-pass duct from the supply plenum in down-flow
applications. See Typical Applications.
Provides additional humidity to the home during the
heating season to increase comfort level.
Do not install where freezing may occur.
Humidifier, saddle valve and manual or automatic
humidifier control (depending on model) shipped in one
package.
Sequence of Operation
Humidifier will only operate when indoor blower is
operating.
When the level of moisture in the return air or living
space area drops below the set point of the humidifier
control, the water solenoid valve opens, water flows
into distribution tray and weeps down through the
evaporator pad. By-pass air flows over the evaporator
pad, increasing the humidity of the air, and then back
into the return air stream. When the humidifier control
is satisfied the water solenoid valve closes.
Model Number Identification
HCWB = Healthy Climate By-Pass Humidifier
Cabinet
Rugged, corrosion resistant molded plastic.
Humidifier is shipped for left-hand by-pass duct
connection.
For right-hand by-pass duct connection, rotate
humidifier cabinet 180º top for bottom and relocate
drain spud. See Installation Instructions for additional
details.
Built-in damper included to close off bypass duct during
summer cooling operation.
HCWB 3 - 17 A
Unit Type
Series
I N D O O R A I R Q U A L I T Y
Healthy Climate
By-Pass Humidifier
Manual Humidistat
Automatic Humidifier Control
(furnished with
standard Models)
(furnished with "A" Models)
Controls
(blank) - Manual Humidistat
A = Automatic Humidifier Control
Nominal Capacity
12 = 12 US Gallons per day
17 = 17 US Gallons per day
HCWB3
®
Bulletin No. 210543
September 2009
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Related Manuals for Healthy Climate HCWB3
Summary of Contents for Healthy Climate HCWB3
- Page 1 Model Number Identification HCWB 3 - 17 A Unit Type Controls HCWB = Healthy Climate By-Pass Humidifier (blank) - Manual Humidistat A = Automatic Humidifier Control Nominal Capacity Series 12 = 12 US Gallons per day...
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Page 2: Specifications
Electrical characteristics Shipping Data - lbs. (1 package) MAINTENANCE SUPPLIES - MUST BE ORDERED EXTRA Replacement Media X2660 X2661 OPTIONAL ACCESSORIES - MUST BE ORDERED EXTRA Installation Kit (Canada Only) 21N85 21N85 HCWB3 − By-Pass Humidifier / / Page 2... - Page 3 Left hand air inlet/outlet shown. For right-hand inlet/outlet, rotate humidifier cabinet 180º top for bottom and relocate drain to alternate location on cabinet. See Installation Instructions for additional details. Model No. HCWB3-12(A) 12-7/8 9-1/2 10-1/4 HCWB3-17(A) 15-7/8 12-3/4 10-1/2 HCWB3 − By-Pass Humidifier / Page 3...
- Page 4 Average Home = One Air Change Rate per hour: Average in construction, 15 to 20 years old on average. Tight Home = One-Half Air Change Rate per hour: Newer home with tight construction.. Also see Healthy Climate Power Humidifer HCWP3 bulletin for additional sizing conditions if needed. Visit us at www.lennox.com For the latest technical information, www.lennoxdavenet.com...
Need help?
Do you have a question about the HCWB3 and is the answer not in the manual?
Questions and answers
when do you turn humidifier unit to 'off' position? do you also turn off the water supply valve?
The Healthy Climate HCWB3 humidifier unit should be turned to the 'off' position at the end of the heating season. Yes, the water supply valve should also be turned off at that time.
This answer is automatically generated
There is a lot of water being passed through the humidifier and into the drain. I think it is far too much. What could be going on?
Excessive water drainage in the Healthy Climate HCWB3 humidifier could be caused by the following factors:
1. Clogged or Faulty Internal Strainer – A blocked or malfunctioning strainer may cause water to overflow and drain excessively.
2. Improper Water Conductivity – If the water has high mineral content, excessive mineral deposits may form, leading to improper operation and increased drainage.
3. Malfunctioning Water Solenoid Valve – A faulty brass water solenoid valve with a stainless steel seat may not regulate water flow correctly, causing too much water to enter and drain.
4. Incorrect Drain Fitting Installation – If the 1/2-inch drain fitting at the bottom of the cabinet is not installed properly, it may allow more water to drain than necessary.
5. Bypass Duct Issues – If the flexible bypass duct is not correctly installed, it may cause improper airflow and increased water drainage.
6. Evaporator Pad Issues – A worn-out or improperly seated evaporator media pad may not absorb water effectively, leading to excess drainage.
Regular maintenance, including cleaning and replacing parts when necessary, can help prevent excessive water drainage.
This answer is automatically generated