Carrier FEM4X Installation Instructions Manual

FEM4X, FEM4P, REM4X, REM4P
FAN COILS
NOTE: Read the entire instruction manual before starting the installation.
SAFETY LABELING AND SIGNAL WORDS
DANGER, WARNING, CAUTION AND NOTE
The signal words DANGER, WARNING, CAUTION, and NOTE are
used to identify levels of hazard seriousness. The signal word DANGER
is only used on product labels to signify an immediate hazard. The signal
words WARNING, CAUTION and NOTE will be used throughout this
manual and other manuals that may apply to the product.
DANGER - immediate hazards which WILL result in severe personal
injury or death.
WARNING - hazards or unsafe practices which could result in severe
personal injury or death.
CAUTION - hazards or unsafe practices which may result in minor
personal injury or product or property damage.
NOTE - used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
SIGNAL WORDS ON PRODUCT LABELING
Signal words are used in combination with colors and/or pictures on
product labels.
WARNING
!
DEATH, PERSONAL INJURY, AND/OR PROPERTY
DAMAGE HAZARD
Failure to carefully read and follow this warning could result in
equipment malfunction, property damage, personal injury and/or death.
Installation or repairs made by unqualified persons could result in
equipment malfunction, property damage, personal injury and/or death.
The information contained in this manual is intended for use by a
qualified service technician familiar with safety procedures and
equipped with the proper tools and test instruments.
Installation must conform with local building codes and with the
National Electrical Code NFPA70 current edition.
introduction
Models FEM4X, FEM4P, and REM4X are for R-410A refrigerant and
can be used for upflow, horizontal left or right, and downflow
applications (accessory kit required for downflow). These units leave the
factory compliant with low leak requirements of less than 2% cabinet
leakage rate at 0.5 inches W.C. and 1.4% cabinet leakage rate at 0.5
inches W.C. when tested in accordance with ASHRAE 193 standard.
FEM4P models are available for system sizes 1-1/2 - 4 tons (18,000 -
48,000 BTUH) nominal cooling capacity. FEM4P use a refrigerant
piston metering device with an ECM.
FEM4X and FXM models are available for system sizes 1-1/2 - 5 tons
(18,000 - 60,000 BTUH) nominal cooling capacity. All models use an
ECM motor and have a factory-installed and appropriately sized hard
shut-off TXV metering device and are for R-410A refrigerant ONLY.
REM4X models are available for system sizes 1-1/2 through 5 tons
(18,000 - 60,000 BTUH) nominal cooling capacity. All models use an
ECM motor and have a factory-installed and appropriately sized hard
shut-off R-410A TXV metering device used for R-410A refrigerant
ONLY.
Installation Instructions
FEM and REM models require a field supplied air filter. Factory
approved electric heater packages are available in sizes 3kW through
30kW. See Product Specification literature for available accessory kits.
LOCATION
Select the best position which suits the installation site conditions. The
location should provide adequate structural support, space in the front of
the unit for service access, clearance for return air and supply duct
connections, space for refrigerant piping connections and condensate
drain line connections. If heaters are being installed make sure adequate
clearance is maintained from supply duct work.
NOTE: If the door gasket is damaged or missing, the unit may not meet
the ASHRAE 193 standard for cabinet air leakage. Contact your supplier
and order kit #1191140.
Nuisance sweating may occur if the unit is installed in a high humidity
environment with low airflow. On these installations a wrap of 2"
(51mm) fiberglass insulation with a vapor barrier is recommended.
NOTE: Internal filter can be accessed from separate filter door. If the
filter can NOT be easily accessed, a remote filter is recommended. Refer
to ACCA Manual D for remote filter sizing.
WARNING
!
FIRE HAZARD
Failure to maintain proper clearances could result in personal injury,
death, and/or property damage.
When heaters are installed, maintain clearances from combustible
materials as specified on unit rating plate. Do NOT use plastic lined or
combustible flexible ducting within 36 inches of the supply end of the
fan coil.
HEATER PACKAGES
Factory approved, field installed, UL listed heater packages are available
from the equipment supplier. See unit rating plate for a list of factory
approved heaters. Heaters that are not factory approved could cause
damage which would not be covered under the equipment warranty.
POSITION UNIT
Unit can stand or lie on floor, or hang from ceiling or wall. Allow space
for wiring, piping, and servicing unit.
!
PRODUCT OR PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in property damage.
A field fabricated auxiliary drain pan, with a separate drain is
REQUIRED for all installations over a finished living space or in any
area that may be damaged by overflow from a restricted main drain
pan. In some localities, local codes require an auxiliary drain pan for
ANY horizontal installation.
CAUTION