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INSTALLATION INSTRUCTIONS
INTRODUCTION
Models FEM4X, FEM4P, REM4X, REM4P are for R--410A
refrigerant and can be used for upflow, horizontal left or
right, and downflow applications (accessory kit required for
downflow).
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 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.
REM4P models are available for system sizes 2 through 4
(24,000 -- 48,000 BTUH) tons and REM4X models are
available for system size 5 tons (60,000 BTUH) nominal
cooling capacity. All models use an ECM integral
electronically commutated motor for efficiency. The 2
through 4 ton models use a piston metering device, the 5 ton
model uses a TXV metering device.
All models require a field supplied air filter. Factory approved
electric heater packages are available in sizes 5kW 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.
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 com-
bustible 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.
See Clearances
2
REQUIRED CLEARANCES - - ALL MODELS inches
No
Heaters
With
Heaters
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.
!
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.
Figure 1
2 SCREWS
REAR CORNER
BRACKET
Specifications are subject to change without notice.
Fan Coils: FEM4X, FEM4P, REM4X, REM4P
(mm)
From Supply Duct
From First 3 feet of Supply Duct to
From Supply Duct to Combustibles
CAUTION
Modular Unit Assembly
BLOWER BOX
2 SCREWS
COIL BOX
All Sides
0
0
All Sides
0
1 (25)
Combustibles
0
after 3 feet
2 SCREWS
496 01 5502 03
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