6
gasket, 1/8-- to 1/4--in. (3.2 to 6.4mm) thick, between duct, unit,
and floor.
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in property damage.
Gasket kit number KFAHD0101SLP is required for horizontal
slope coil conversion to maintain low air leak/low sweat
performance.
CAUTION
!
G. Manufactured and Mobile Home Housing Applications
1. Fan coil unit must be secured to the structure using field--
supplied hardware.
2. Allow a minimum of 24” (610 mm) clearance from access
panels.
3. Recommended method of securing for typical applications
a. If fan coil is away from wall, attach pipe strap to top of
fan coil using No. 10 self tapping screws. Angle strap
down and away from back of fan coil, remove all slack,
and fasten to wall stud of structure using 5/16--in.
(8mm) diameter lag screws. Typical both sides of fan
coil.
b. If fan coil is against wall, secure fan coil to wall stud
using 1/8--in. (3mm) thick right--angle brackets. Attach
brackets to fan coil using No. 10 self tapping screws
and to wall stud using 5/16--in. (8mm) diameter lag
screws. (See Fig. 7.)
DOWN FLOW
BASE KIT (KFACB)
UNIT AGAINST WALL
.125" (3mm)
MOUNTING BRACKET
(TYPICAL BOTH SIDES)
SECURE FAN COIL TO STRUCTURE
UNIT AWAY FROM WALL
PIPE STRAP
(TYPICAL BOTH SIDES)
OR
SECURE UNIT TO FLOOR
ANGLE BRACKET OR PIPE STRAP
4” (102mm) MAX
4” (102mm) MAX
A07567
Fig. 8 -- A--Coil
Procedure 3 — AIR DUCTS
Connect supply--air duct over outside of 3/4--in. (19mm) flange
provided on supply--air opening. Secure duct to flange with proper
fasteners for type of duct used, and seal duct--to--unit joint.
Duct connection flanges are provided on unit air discharge
connection. When using FV4C units with 20--, 24--, and 30--kW
electric heaters, maintain a 1--in. (25mm) clearance from
combustible materials to discharge plenum and ductwork for a
distance of 36 in. (914mm) from unit. Use accessory downflow
base to maintain proper clearance on downflow installations.
Use flexible connectors between ductwork and unit to prevent
transmission of vibration. When electric heater is installed, use heat
resistant material for flexible connector between ductwork and unit
at discharge connection. Ductwork passing through unconditioned
space must be insulated and covered with vapor barrier.
Ductwork Acoustical Treatment
Metal duct systems that do not have a 90
_
elbow and 10 ft (3m) of
main duct to first branch takeoff may require internal acoustical
insulation lining.
As an alternative, fibrous ductwork may be used if constructed and
installed in accordance with the latest edition of SMACNA
construction standard on fibrous glass ducts. Both acoustical lining
and fibrous ductwork shall comply with National Fire Protection
Association Standards 90A or B as tested by UL Standard 181 for
Class 1 air ducts.
Procedure 4 — ELECTRICAL CONNECTIONS
On units with a factory installed disconnect with pull--out removed,
service and maintenance can be safely performed on only the load
side of the control package.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or
death.
Field wires on the line side of the disconnect found in the fan coil
unit remain live, even when the pull--out is removed. Service and
maintenance to incoming wiring cannot be performed until the
main disconnect switch (remote to the unit) is turned off.
!
WARNING
A. Line--Voltage Connections
If unit contains an electric heater, remove and discard power plug
from fan coil and connect male plug from heater to female plug
from unit wiring harness. (See Electric Heater Installation
Instructions.)
For units without electric heat:
1. Connect 208/230v power leads from field disconnect to yel-
low and black stripped leads.
2. Connect ground wire to unit ground lug.
Check all factory wiring per unit wiring diagram and inspect
factory wiring connections to be sure none were loosened in transit
or installation.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installing or servicing system, always turn off main
power to system. There may be more than one disconnect
switch. Tag disconnect switch with a suitable warning label.
Turn off accessory heater power if applicable.
!
WARNING
FV4
C