Healthy Climate HCWB3 User Manual

P R O D U C T S P E C I F I C A T I O N S
Model Number Identification
HCWB = Healthy Climate By-Pass Humidifier
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 upflow and horizontal
applications. Installs on the return air plenum with
a by-pass duct from the supply plenum in downflow
applications. See Typical Applications.
HCWB 3 - 17 A K
Unit Type
Series
Nominal Capacity
12 = 12 US Gallons per day
17 = 17 US Gallons per day
I N D O O R A I R Q U A L I T Y
Manual Humidistat
(furnished with standard Models)
Automatic Humidifier Control
(furnished with "A" Models)
Installation Kit
K = Installation Kit Furnished (Canada only)
Controls
(blank) = Manual Humidistat
A = Automatic Humidifier Control
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.
HCWB3
Healthy Climate
By-Pass Humidifier
Bulletin No. 210543
September 2011
Supersedes May 2011
®