Company HX Series Installation Manual

Free return installation (non-ducted
return air): The furred down area must
be completely sealed (except return
air grille) to ensure that all return air is
pulled from the conditioned space and
not from other areas of the building
structure.
Access must be provided for ser-
vicing the unit. If this access is
provided by a removable ceiling
panel, ample space must be allowed
for removal of the blower panels and to
provide access to electrical and
plumbing controls. While most fan
coil units are U.L. Listed for installa-
tions with zero clearance to combus-
tible materials, reference should be
made to the marking on the particular
unit being installed where specific in-
formation regarding clearances is pro-
vided.
HX - HYX - HXX SERIES HORIZONTAL
FAN COIL UNITS
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
GENERAL
The manufacturer assumes no re-
sponsibility for equipment installed in
violation of any code requirement.
These instructions give information
relative to the installation of these fan
coil units only. For other related
equipment refer to the proper instruc-
tions.
Material in this shipment has been
inspected at the factory and released
to the transportation agency in good
condition. When received, a visual
inspection of all cartons should be
made immediately. Any evidence of
rough handling or apparent damage
should be noted on the delivery receipt
and the material inspected in the pres-
ence of the carrier’s representative. If
damage is found, a claim should be
filed against the carrier immediately.
FAN COIL UNIT
The installer must adhere strictly to
all local and national code require-
ments pertaining to the installation of
this equipment. These units are de-
signed for installation in a horizontal
position above a dropped ceiling.
****** WARNING ******
Unit must not be operated
during building construction
due to excessive airborne dust
and debris. The unit must not
be operated under any
circumstances without an air
filter in place.
AIR DISTRIBUTION
DUCTS
All duct work must be installed in
accordance with National Fire Protec-
tion Association Codes 90A and 90B.
Ducts should be adequately insulated
to prevent condensation during the
cooling cycle and to minimize heat
loss during the heating cycle. All
return air must be filtered to prevent
L239 08/10
****** WARNING ******
Extreme caution must be
taken that no internal damage
will result if screws or holes are
drilled into the cabinet.
**WARNING TO INSTALLER, SERVICE PERSONNEL AND OWNER**
Altering the product or replacing parts with non authorized factory parts voids all warranty or implied warranty
and may result in adverse operational performance and/or a possible hazardous safety condition to service
personnel and occupants. Company employees and/or contractors are not authorized to waive this warning.
Current Maintenance Program is available at www.firstco.com under "Product Information".