Company HX Series Installation Manual

****** 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
failure, personal injury and
property damage.
NOTE: If a Condensate Overflow
Shut-off Switch, that is designed to
be installed 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 be-
tween 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 screws for tightness and ensure
that the blower wheels rotates freely
and quietly.
• Check that the refrigerant coil con-
nections and piping have been leak
checked and insulated as required.
Start-up and Maintenance
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. All ac-
cess panels and filters must be in
place before operation of the units.
Fan
The fan should be inspected and
cleaned, in conjunction with mainte-
nance of the motor and bearings. It is
important to keep the wheels 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.
With DC motors, high voltage
power is applied at all times.
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.
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.
• Cleaning with low pressure com-
pressed air.
• Flushing or rinsing with water (a
detergent is advisable for greasy sur-
faces).
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
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.
**MAINTENANCE UPDATES**
For a current copy of the
Maintenance Program log on
to www.firstco.com and
look under "Product Informa-
tion"
****** WARNING ******
R-410a systems operate at
much higher pressures than
systems using former refrig-
erants. Use only equipment
certified for use with R-410a.
BRUSHLESS DC MOTOR CONNECTIONS
IF SO EQUIPPED
****** WARNING ******
R-410a can become combustible if
mixed with air at elevated temperatures
and/or pressures. Property damage, per-
sonal injury or death could result if this
warning is ignored.
YEL
RED
WHT
YEL
BLK
GRN
ORG
24 VAC CLASS 2
MOTOR SPEED
LEADS
SEE WIRING
DIAGRAM
DC FAN
MOTOR
HIGH
VOLTAGE