HCWB3 − By-Pass Humidifier / / Page 2
FEATURES
CONTROLS
Manual Humidistat - HCWB3-12 and HCWB3-17
Can be horizontally mounted on wall or duct.
Provides manual control of room relative humidity.
Wired in series with the humidifier water solenoid
valve.
Adjustable setting.
Automatic Humidifier Control - HCWB3-12A and
HCWB3-17A
Wall or duct mounted.
Automatic or manual mode control. Manual Mode label
(with resistor to bypass outdoor temperature sensor)
are furnished to indicate when humidistat is installed in
Manual Mode.
Senses indoor relative humidity and outdoor
temperature. Includes outdoor temperature sensor
for use with automatic control option and resistor for
manual control setting.
Adjusts humidity setpoint to provide optimum humidity
levels within the space.
Adjustable setting.
WATER SUPPLY
Consists of supply tubing, orifice, distribution tray,
cleanable/replaceable internal strainer and 24 volt
brass water solenoid valve with stainless steel seat.
Drain
1/2 in. drain fitting at bottom of cabinet.
1/2 in. ID plastic tubing must be field provided.
Unused water from the evaporator pad is drained from
the unit to help remove mineral deposits left from the
evaporative process.
Distribution Tray
Reservoir and unique polyester liner provides even
water distribution across the evaporator media pad for
optimal performance.
Tray and support frame removable for cleaning or
replacement.
Evaporator Media Pad
Provides large evaporation capacity.
Pad and support frame removable for cleaning or
replacement.
Annual pad replacement recommended.
Saddle Valve
All necessary fittings furnished as standard equipment.
Field installs in the water supply line
OPTIONAL ACCESSORIES
Installation Kit (Canada Only)
Kit contains: 6 in. dia. duct ring flange, 2.5 ft. of 6
in. dia. galvanized steel flexible duct, 10 ft. of 1/4 in.
OD polyethylene water feed tube, 15 ft. of 1/2 in.
ID clear nylon drain tube, 10 ft. of 2-conductor 18
AWG thermostat wire, one hose clamp, two plastic
compression sleeves, and two plastic compression
ferrules.
MAINTENANCE SUPPLIES
Replacement Media
Recommended annual replacement of media pad.
See Specifications table for catalog number.
SPECIFICATIONS
Model No.
With Manual Humidistat Control
HCWB3-12
HCWB3-17
With Automatic Humidifier Control
HCWB3-12A
HCWB3-17A
Capacity - 120°F plenum temperature, 0.20 in. w.c. static pressure drop
12 US gallons per day
17 US gallons per day
Water Feed Rate (gallons per hour @ 50 PSI water pressure)
3
3
Evaporator pad size - H x W x D - in.
9-1/2 x 9-5/8 x 1-11/16
13 x 10 x 1-11/16
Connections
Plenum H x W - in.
9-1/2 x 9-1/2
12-3/4 x 10
By-Pass Duct - in.
6 round
6 round
Water supply
1/4 in. compression
1/4 in. compression
Drain
1/2 in. I.D.
1/2 in. I.D.
Electrical characteristics
24V
24V
Shipping Data - lbs. (1 package)
8
9
MAINTENANCE SUPPLIES - MUST BE ORDERED EXTRA
Replacement Media
X2660
X2661
OPTIONAL ACCESSORIES - MUST BE ORDERED EXTRA
Installation Kit (Canada Only)
21N85
21N85
