Installation Instructions
Direct Expansion
Fan Coil Unit
FF1D
A98329
Fig. 1--FF1D Unit
NOTE: Read the entire instruction manual before starting the installation.
This symbol -_ indicates a change since the last issue.
SAFETY CONSIDERATIONS
hnproper installation, adjustment, alteration, service, maintenance, 02"use can cause explosion, fire, electrical shock, or other conditions which may
cause personal injury or property damage. Consult a qualified installer, service agency, distributor or branch for information or assistance.
Qualified installer or agency must use factory authorized kits or accessories. Refer to individual instructions packaged with kits or accessories
when installing.
Follow all safety codes. Wear safety glasses and work gloves. Read these instructions thoroughly and follow all warning or cautions attached to
the unit. Consult local building codes and National Electrical Code (NEC) for special requirements. Recognize safety information. This is the
safety alert symbol z_ • When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION and NOTE. These words are used with the safety alert symbol. DANGER
identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal
injury or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.
INTRODUCTION
FFID Fan Coils are designed with application flexibility in mind and are suitable for closet and flush mount installations. The FF1D is available
in bare box or with _actory-installed heat and disconnect. It is also available with or without a factory installed TXV. Units are used indoors as
the air handler for split-system heat pumps or air conditioners. Units are available in 18,000, 24,000, and 30,000 Btuh nominal cooling capacities.
(See Fig. i.)
Form: IM-FF1D-03 Cancels: IM-FF1D-02 Printed in U.S.A. 6-02 Catalog No. 63FF-1D4
REFRIGERANT -_
NOTE" LINES ENTRY ,X
1. SERIES DESIGNAT!ON IS _ '
THE 14TH POSITION _3_"
OF UNIT MODEL NUMBER. zp
15 3/I6"_ I
2 3/4"'1_ __'11- 8 1/4""1_ 1-'-4 3/16" 7/8""-I_
t
3
o
TOP VIEW
22 1/8""""""'"
i-.,,,-113A6".-=-I-.,,,_10 1A6"..-_
It" ",1
LOW VOLTAGE ENTRY
( 7/8" DIA. HOLE)
7/8" DIA. HOLE
2 13A6"
.___1 eAG"
/-- BLOWER, CONTROL AND
ELECTRIC HEATER
ACCESS PANEL
TUBE
LIQUID TUBE
UNIT CONNECTION SIZES
SUCTION, 018,024,030 - 3/4"I.D. SWEAT
LIQUID, 3/8" ID. SWEAT
CONDENSATE, 3/4" NPT
5 _s
SIDE VlEW
1
24 1/16"
_ _ FILTER MEDIA
PRIMARY DRAIN
FRONT VIEW
----11 1A6'_.- I
4
PATCH PLATE I_--[J_ _-_
FAN CO L BASE "-/I
Fig. 2--Dimensional Drawing of FFID with Power Disconnect
Factory-installed heaters and field-installed heaters are available in 5 , 7.5 , and llkw sizes. The coil is equipped with sweat-type connections
and is vapor-charged with dry nitrogen. The casing is fully insulated to meet applications in conditioned space. Additional insulation is required
if the unit is installed in unconditioned space.
Units are designed for upflow applications only. Local codes may limit this free-air-return type unit to installation in single-level applications.
When electric heater is not needed, a factory approved accessory cooling control package is required. See instructions packaged with accessory
for installation procedures.
/
BOTTOM VIEW
A98336
z_x WARNING: Before installing or servicing unit, always turn off all power to unit. There may be more than 1 disconnect
switch. Turn off accessory heater power if applicable. Electrical shock can cause personal injury or death.
INSTALLATION
PROCEDURE 1--CHECK EQUIPMENT
Unpack unit and move to final location. Remove carton, taking care not to damage unit. Inspect equipment for damage prior to installation. File
claim with shipping company if shipment is damaged or incomplete. Locate rating plate on unit. It contains information needed to properly install
unit. Check rating plate to be sure unit matches job specifications. A front access panel is provided, which permits access to blower assembly and
electrical controls for removal and servicing.
NOTE: Note: Minimum clearance of 21 in. is required in fi'ont of access panel for servicing only. Installation clearance from combustible
materials is 0 in. from cabinet and supply-air duct (plenum included). Leave room for condensate pan and refrigerant line connection. (See Fig.
2 and 4.)
2