3
IMPORTANT SAFETY INFORMATION
INSTALLER: Please read all instructions before servicing
this equipment. Pay attention to all safety warnings and
any other special notes highlighted in the manual. Safety
markings are used frequently throughout this manual to
designate a degree or level of seriousness and should not
be ignored. WARNING indicates a potentially hazardous
situation that if not avoided, could result in personal injury
or death. CAUTION indicates a potentially hazardous
situation that if not avoided, may result in minor or moderate
injury or property damage.
WARNING:
B5 Series Air Handlers leave the factory with
a nitrogen holding charge. Use caution when
preparing coils for field connections. If repairs
make it necessary for evacuation and charging,
it should only be attempted by qualified,
trained personnel thoroughly familiar with this
equipment. Some local codes require licensed
installation service personnel to service this
type of equipment. Under no circumstances
should the equipment owner attempt to install
and/or service this equipment. Failure to comply
with this warning could result in equipment
damage, personal injury, or death.
NITROGEN
HEALTH
FLAMMABILITY
REACTIVITY
0 Minimal Hazard
1 Slight Hazard
1
0
0
WARNING:
ELECTRICAL SHOCK, FIRE OR EXPLOSION
HAZARD
Failure to follow safety warnings exactly could
result in serious injury or property damage.
Improper servicing could result in dangerous
operation, serious injury, death or property
damage.
• Beforeservicing,disconnectallelectricalpower
to air handler.
• Whenservicingcontrols,labelallwiresprior
to disconnecting. Reconnect wires correctly.
• Verifyproperoperationafterservicing.
REQUIREMENTS & CODES
WARNING:
This unit must be installed in accordance with
instructions outlined in this manual during
the installation, service, and operation of
this unit. Unqualified individuals should not
attempt to interpret these instructions or
install this equipment. Failure to follow safety
recommendations could result in possible
damage to the equipment, serious personal
injury or death.
• The installer must comply with all local codes and
regulations which govern the installation of this type
of equipment. Local codes and regulations take
precedence over any recommendations contained in
these instructions. Consult local building codes for
special installation requirements.
• Thisequipmentcontainsnitrogen gas.Installationor
servicing should only be performed by qualified trained
personnel thoroughly familiar with this type equipment.
• Allelectricalwiringmustbecompletedinaccordance
with local, state and national codes and regulations
and with the National Electric Code (ANSI/NFPA 70)
or in Canada the Canadian Electric Code Part 1 CSA
C.22.1.
• Installationofequipmentmayrequirebrazingoperations.
Installer must comply with safety codes and wear
appropriate safety equipment (safety glasses, work
gloves, fire extinguisher, etc.) when performing brazing
operations.
• When connecting refrigerant linesets together, it is
recommended that dry nitrogen be flowing through the
joints during brazing to prevent internal oxidation and
scaling.
• Install this unit only in a location and position as
specified on pages 4 & 5. This unit should be located
with consideration of minimizing the length of the supply
and return ducts. See Table 2 (page 17) and the rating
plate for proper circulating airflow data.
• Follow all precautions in the literature, on tags, and
on labels provided with the equipment. Read and
thoroughly understand the instructions provided with
the equipment prior to performing the installation and
operational checkout of the equipment.
• This air handler may be used for temporary heating
of buildings or structures under construction. See the
guidelines listed on page 4.
• Airhandlerinstallationsinaresidentialgaragemustbe
installed as specified on page 5.
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