First Co UC - Vertical front return with electric heat - Manual (Page 3)

Figure 3
DETAIL OF WALL PANEL FRAME
INSTALLATION
INSTALLED UNIT
TOP VIEW
Figure 2
2 X 4
WALL STUD
SCREW
DRY WALL
WALL PANEL
FRAME
NOTE: If a Condensate Overflow Shut-
off Switch, that is designed to be in-
stalled in the drain line, is used in
place
of a secondary drain line, then the cut-off
switch should be located in the primary
drain line between the fan coil unit and
the P-trap.
OPERATION AND
MAINTENANCE
Pre-start Check
• Check that supply voltage matches
nameplate data.
• Ensure that the unit is properly
grounded.
• With power off, check blower wheel
set screw for tightness and ensure that
the blower wheel rotates freely and qui-
etly.
• Install all panels and disconnect.
• Install any filters which may have
been removed during the installation
process.
Start-up and Maintenance
Before start-up, all of the components
should be given a thorough check. Opti-
2 X 4
WALL STUD
SUCTION
LINE
LIQUID
LINE
DRY WALL
UC WALL PANEL FRAME
(PANEL ASSEMBLY IS
ORDERED SEPARATELY)
CROSS MEMBER
(ON EDGE)
THERMOSTAT WIRING
POWER
SUPPLY
WIRING
****** 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 warran-
ties and liability for equip-
ment failure, personal injury
and property damage.
****** WARNING ******
On units with plastic drain
pans the drain connections
must be made hand tight only.
Condensate drain lines must be in-
stalled with adequate slope away from
the unit to assure positive drainage.
Since the drain pan is located on the
suction side of the blower, a negative
pressure exists at the drain pan and a
minimum trap of 1-1/2 inches must be
provided in the drain line to assure
proper drainage. mal operation of this equipment requires
cleanliness. Often after installlation of
this equipment additional construction
activities occur. 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 vibration.
Motor
Check motor connections to ensure
that they are secure and made in accor-
dance with the wiring diagram.
Caution: High efficiency
brushless DC motors are wired with
power applied at all times (X13 for ex-
ample), see illustration in figure 5.
Low voltage thermostat demand will
control its use.
The blower motor should be cleaned
annually.
Coil
Any dust or other contaminants which
accumulate on the heat transfer sur-
faces interferes with the air flow and
impairs heat transfer. The coil must be
kept clean by any of the following meth-
ods.
• Cleaning with low pressure com-
pressed air.
• Flushing or rinsing with water (a deter-
gent is advisable for greasy surfaces).
Filter
The air filter should be cleaned or re-
placed every 30 days or more frequently
if severe conditions exist. Always re-
place the filter with the same type as
originally furnished.
Drain Piping
The drain should always be:
• Connected or piped to an acceptable
disposal point sloped away from the
unit at least 1/8" per foot.
• Checked before summer operation.
• Periodically checked during summer
operation.
Preventative Maintenance
To achieve maximum performance
and service life of each piece of equip-
ment a formal schedule of regular main-
tenance should be established and
maintained by a licensed contractor.