First Co HBC (X) - Manual (Page 4)

and wiring of the unit and may vary
from unit to unit.
4. When soldering or brazing to the
unit it is recommended to have a fire
extinguisher readily available. When
soldering close to valve packages or
other components heat shields or wet
rags are required to prevent damage.
5. When the fan coil unit is in opera-
tion components are rotating at high
speeds.
6. Units must be installed level to
ensure proper drainage and opera-
tion.
7. Check unit prior to operation to
ensure that the condensate water will
drain toward the drain connection. An
overflow drain may be required as a
back up to a clogged primary drain.
8. Be sure that the drain pan is free
from foreign material prior to start up.
9. Check filter media installation to
ensure that it is installed correctly.
Use the directional arrows or other
information on the filter to determine
the proper flow direction.
10. Ensure that the air distribution
system does not exceed the external
static rating of the unit.
OPERATION AND
MAINTENANCE
Pre-start Check
1. Check that supply voltage matches
nameplate data.
2. Ensure that the unit is properly
grounded.
3. With power off, check blower
wheel set screws for tightness and
ensure that the blower wheel(s) rotate
freely and quietly.
4. Check that coil(s), valves and pip-
ing have been leak checked and insu-
lated as required.
5. Ensure that all air has been vented
from the system.
6. Install all panels.
7. Install any filters which may have
been removed during the installation
process.
Inspection and Cleaning
Before start-up all of the compo-
nents should be given a thorough
check. Optimal operation of this
equipment requires cleanliness. Of-
ten after installation of this equipment
additional construction activities oc-
cur. Care must be taken to protect the
equipment from debris during these
construction phases.
Fan
The fan should be inspected and
cleaned, in conjunction with mainte-
nance of the motor and bearings. It is
important to keep the wheel clean in
order to avoid imbalance and vibra-
tion.
Motor
Check motor connections to en-
sure that they are secure and made in
accordance with the wiring diagram.
The blower motor should be
cleaned annually and if it has oiling
ports, it should be oiled with a good
grade of SAE 20 oil. Normally a few
drops of oil in each bearing is suffi-
cient.
****** WARNING ******
Do not touch any rotating
component with any object.
Damage to the equipment and
personal injury can occur.
****** WARNING ******
• Always wear eye protection.
• When fan coil is operating,
some components are operating
at high speeds. Personal injury
can result from touching these
items with any object
• All electrical and service
access panels must be returned
and secured in their proper place.
• Clear surrounding area of all
tools, equipment and debris.
• Check the entire unit to ensure
it's cleanliness.
****** WARNING ******
The manufacturer does NOT
WARRANT equipment sub-
jected to abuse. Metal chips,
dust, drywall tape, paint over
spray, etc. can void warranties
and liability for equipment fail-
ure, personal injury and prop-
erty damage.
Coil
Any dust or other contaminants
which accumulate on the heat trans-
fer surfaces interferes with the air flow
and impairs heat transfer. The coil
must be kept clean by any of the
following methods.
1. Cleaning with low pressure com-
pressed air.
2. Flushing or rinsing with water (a
detergent is advisable for greasy sur-
faces).
3. Prior to the water system start-up
and balancing, the chilled/hot water
systems should be flushed to clean
out dirt and debris which may have
accumulated during construction. All
unit service valves are to closed dur-
ing this process. Strainers are to be
installed in the piping mains to prevent
this material from entering the units
during normal operation.
Caution: Be sure to return valves to
their proper operating positions prior
to start-up.
Filter
The air filter should be cleaned or
replaced as often as necessary to
prevent restriction of air flow. Always
replace the filter with the same type as
originally furnished.
Drain Piping
The drain should always be:
-Connected or piped to an accept-
able disposal point sloped away
from the unit at least 1/8" per foot
-Checked before summer operation
-Periodically checked during sum-
mer operation
Note: A trap may be required per local
codes and for odor containment.
Preventative Maintenance
To achieve maximum performance
and service life of each piece of equip-
ment a formal schedule of regular
maintenance should be established
and maintained.