HOMEOWNER’S MANUAL
MODEL HUM
HUMIDIFIERS
Model HUMBBLFP1025-A--
Fan-Powered Humidifier
Model HUMBBLBP2018-A--
Bypass Humidifier
Model HUMBBSFP1016-A--
Fan-Powered Humidifier
Model HUMBBSBP2017-A--
Bypass Humidifier
NOTE TO
INSTALLER:
Model HUMBBWTR2019-A--
Water-Saver Bypass Humidifier
This manual
must be
left with the
equipment user.
REFRESHING MOISTURE
. . . AS NA TURE INTENDED
Congratulations on your excellent choice
and sound inv estment in this addition to
your home comfort system.
Y our humidifier represents both the latest
in engineering development and the culmination of many years of experience
from one of the most reputable manufacturers of comfort systems.
Your ne w unit is among the most ener gyefficient and reliable home humidifiers
available today. To assure its dependability , spend a few minutes now with this
booklet. Learn about the operation of
your humidifier and the small amount of
maintenance it takes to keep it operating
at peak efficiency.
With minimal care, your humidifi er will
provide you and your family with moist,
spring-fresh air—from season to season
and year to year .
Y OUR HOME HUMIDIFIER
YOUR HOME CAN BE DRIER
THAN DEATH VALLEY
During the heating season, your home
can become uncomfortably dry. This is
because cold winter air holds very little
moisture. When outdoor air is warmed to
average room temperature, its relative
humidity falls to ev en lower lev els. Refer
to Table 1 for a comparison of the levels
of relative humidity for a few sample
environments.
T able 1—Relative Humidity
Comparison
HEATED HOME
RECOMMENDED
RELATIVE
HUMIDITY
35% 25% 23% 5-15%
Parched air can cause the wood used in
the construction of your house and furnishings to dry, crack, and split. Draperies and upholstery may age prematurely .
Annoying static electric shock and cling
are more prevalent. Your throat, nasal
passages, sinuses, and skin are more
susceptible to irritating dryness. Y ou may
even ha ve to set the thermostat higher
than otherwise necessary—just to feel
warm.
MOISTURE MAKES A
REFRESHING DIFFERENCE
Proper humidity control can alleviate
problems caused by excessive dryness.
Furnishings and fabrics take on a more
SAHARA
DESERT
DEATH
VALLEY
HEATED HOME
AVERAGE
lustrous appearance. Houseplants thriv e.
Static electricity is significantly reduced
in a properly humidified home. Your family will breathe more easily and find relief
from the cool, drafty feeling commonly
experienced in overly dry homes. The additional moisture supplied by your humidifier may enable you to reduce the
temperature setting on your thermostat—
without any loss of indoor comfort.
HOW Y OUR HUMIDIFIER
WORKS
Y our humidifi er adds water molecules to
the air inside your home. Although the
rate of humidification is variable, it may
exceed one-half gallon of water per hour .
That’s a health y drink for a dry household. The typical process of humidification begins when water flo ws through the
humidifier valve and soaks the large
evaporator pad. Hot, dry air from the furnace passes through the pad and absorbs
the water . Then, this moisture-laden air is
distributed throughout the house via the
ductwork. See Fig. 1, 2, and 3.
EVAPORATOR
PAD
DRY
AIR
HUMIDIFIED
AIR
DRAIN
Fig. 1
DRY
AIR
HUMIDIFIED
AIR
Fig. 2
TYPICAL
INSTALLATIONS
Fig. 3
—2—
OPERA TING YOUR
HUMIDIFIER
Your new humidifier is designed to operate as part of your home heating system.
It will perform at maximum efficienc y
if these recommendations are
followed:
•
The humidifier is controlled by a humidistat. Adjust the humidistat setting
according to the outside temperature.
Refer to T able 2 as a general guide. If after
several days, the air in your home seems
too moist, lower the humidistat setting.
Condensation on single-pane windows
indicates excessiv e moisture. If the air is
too dry , increase the setting. Dry throat
and nasal passages indicate dry air .
•
All models come with a humidistat.
Continuous blower operation provides for
constant humidification. It may also contribute to greater personal comfort
because continuous blower operation
minimizes temperature differences
throughout the home. Furthermore, a
system equipped with an electronic air
cleaner offers the added benefit of fulltime air filtration.
•
Supply- and return-air grilles should
not be blocked by items such as drapes,
furniture, and toys. Restricted airflow
reduces the efficiency of the humidifi er,
as well as that of the whole comfort
system.
•
The humidifier unit must be properly
maintained on a regular basis.
STARTUP PROCEDURES
1. Open the saddle valve on the
water supply line. (See Fig. 4.) Set
humidistat to the desired relative
humidity . (See Fig. 5 and Table 2.)
2. Turn the furnace on and adjust the
thermostat to a high temperature
setting. Be sure that the furnace
blower is operating.
3. Check to see if water is flowing into
the humidifier .
Table 2—
Humidistat Settings
RECOMMENDED
OUTSIDE
TEMPERATURE
(°F)
–20 15
–10 20 (LOW)
–0 25
10 30
20 35
30 40 (MED)
HUMIDISTAT
SETTING
(% RELATIVE
HUMIDITY)
Fig. 4—Saddle Valve
HUMIDISTAT
Fig. 5
•
On a Model HUMBBLBP or Model
HUMBBLFP humidifier, loosen the
thumbscrew that holds the distrib utor
cover to the top of the cabinet. Lift up the
distributor cover slightly to make certain
that water is flowing from the solenoid
valve into the distrib utor pan. Do not lift
the cover of f the cabinet more than 1 in.
when water is flowing. (See Fig. 6 or 7
according to the model you own.)
bly in place. Check to see if water is flo wing from the solenoid valve into the
distributor pan. (See Fig. 9.)
•
On a Model HUMBBWTR unit, look
through the window on front of the unit to
see that the evaporator pad is rotating and
water is flowing. (See Fig. 10.)
The Model HUMBBWTR is controlled
by a float valve. Turning off the furnace
will not affect the water flow until float
level is achieved. (See Fig. 11.)
SOLENOID VALVE
DISTRIBUTOR COVER
DISTRIBUTOR PAN
EVAPORATOR PAD
CABINET
BOTTOM ACCESS PANEL
Fig. 7—
Model HUMBBLFP1025-A--
DUCT HOUSING
CABINET
INLET
RECTIFIER
DRAIN
SOLENOID VALVE
DISTRIBUTOR PAN
EVAPORATOR PAD
SIDE ACCESS DOOR
SHUTDOWN PROCEDURES
To shut down your humidifier, close the
saddle valve on the w ater line. Then turn
off the humidistat. When set to the OFF
position, the humidistat shuts off the
electrical power to the solenoid v alve on
the humidifier .
NOTE: If your home comfort system in-
cludes cooling, be sure the water supply
to your humidifier is
turned off
during
the cooling season. Close the damper
located in the bypass duct if one is
installed. If your humidifier is a Model
HUMBBWTR, drain and clean the water
pan as described in cleaning procedures.
PERFORMING ROUTINE
MAINTENANCE
With the proper maintenance and care,
your humidifier will operate economically and dependably. Maintenance can
be accomplished easily by referring to
the following directions. Ho wever,
before performing any maintenance,
consider these important safety
precautions:
•
DISCONNECT ALL ELECTRICAL POWER T O THE HUMIDIFIER
AND FURNACE BEFORE PERFORMING ANY SERVICE OR
MAINTENANCE TO AVOID PERSONAL INJURY.
BEARING RETAINER
SOLENOID VALVE
DISTRIBUTOR COVER
DISTRIBUTOR PAN
EVAPORATOR PAD
CABINET
BOTTOM ACCESS
PANEL
Fig. 6—
Model HUMBBLBP2018-A--
•
On a Model HUMBBSBP humidifier ,
gently pull the latch that secures the
access door. Remove the door. Check to
see if water is flowing from the solenoid
valve into the e vaporator pad. (See Fig. 8.)
•
On a Model HUMBBSFP humidifier ,
open the side door or the front cover . If the
front cover is opened, hold the pad assem-
Fig. 8—
Model HUMBBSBP2017-A--
CABINET
FRONT COVER
SCREWS (4)
SIDE ACCESS DOOR
PAD ASSEMBLY
Fig. 9—
Model HUMBBSFP1016-A--
4. Turn off the furnace. When the
blower stops, look into the humidifier to make sure the water is not
flowing into the unit.
5. Replace the cover assembly and
fasten securely.
6. Now, turn the furnace on and set
the thermostat for desired room
temperature.
CABINET
PAD
PAN
Fig. 10—
Model HUMBBWTR2019-A--
NOTE: THERE MAY BE MORE
THAN 1 ELECTRICAL DISCONNECT SWITCH.
•
ALTHOUGH SPECIAL CARE HAS
BEEN T AKEN T O MINIMIZE SHARP
EDGES IN THE CONSTR UCTION OF
YOUR HUMIDIFIER, BE EXTREMELY CAREFUL WHEN HANDLING
PARTS OR REA CHING INTO THE
UNIT TO AVOID PERSONAL INJURY.
Your humidifier has been designed for
easy disassembly to simplify cleaning
and servicing. Your unit must be kept
clean to maintain its efficiency.
—3—