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NOTE: Read the entire instruction in manual applicable to
specific unit before starting the installation. This symbol →
indicates a change since the last issue.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause personal injury or property damage.
Consult a qualified installer, service agency, distributor, or branch
for information or assistance. The qualified installer or agency
must use factory-authorized kits or accessories when modifying
this product. Refer to the individual instructions packaged with the
kits or accessories when installing.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for brazing operations. Have fire extinguisher
available. Read these instructions thoroughly and follow all
warnings or cautions attached to the unit. Consult local building
codes and National Electrical Code (NEC) for special require-
ments.
Recognize safety information. This is the safety-alert symbol
.
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies hazards which
could result in personal injury or death. CAUTION is used to
identify unsafe practices which would result in minor personal
injury or product and property damage.
WARNING: Before installing or servicing system, al-
ways turn off main power to system. There may be more
than 1 disconnect switch. Turn off accessory heater
power if applicable. Electrical shock can cause personal
injury or death.
CAUTION: Unit must not be installed where freezing
temperatures could occur. Do not install unit on the
furnace or fan coil jacket. Do not install unit where ends
of cooling coil could restrict airflow to the humidifier.
Condensation damage could occur if home has closed-
off, unheated rooms.
INSTALLATION OF HUMBBLBP2018-A--
BYPASS HUMIDIFIER
Bryant’s HUMBBLBP2018-A-- bypass humidifier can be installed
on either the supply or return plenum of a forced-air system. This
unit requires an external bypass duct between the supply- and
return-air ductwork.
It is recommended to install the humidifier where it can be easily
serviced. If this humidifier is installed with a central cooling
system the bypass duct must have a shutoff damper to close during
the cooling season. Always install humidifier downstream of an
electronic air cleaner.
→ Humidifiers
A98361
MODEL HUMBBLFP1025-A--
FAN-POWERED
HUMIDIFIER
MODEL HUMBBSFP1016-A--
FAN-POWERED
HUMIDIFIER
MODEL HUMBBWTR2019-A--
WATER-SAVER
BYPASS HUMIDIFIER
MODEL HUMBBLBP2018-A--
BYPASS HUMIDIFIER
MODEL HUMBBSBP2017-A--
installation and
start-up instructions
HUMIDIFIERS AND
HUMIDISTAT
Cancels: II 912D-56-3 II HUM-56-1
7-98
HUM
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