Fedders Split System Air Conditioner User Manual

Installation, Operation and Maintenance

1.5 Through 5 Ton
Split System Air Conditioner

TABLE OF CONTENTS

INTRODUCTION

NOTES TO INSTALLER ....................................................................1

RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS ................1

CODES ............................................................................................1

INSPECTION AND UNPACKING......................................................1

INSTALLATION

Clearances ..........................................................................2

Support ..............................................................................2

Exposure ............................................................................2

Proximity to Evaporator....................................................2

ELECTRICAL CONNECTIONS ..........................................................2

SERVICE VALVE CONNECTIONS

Braze Joints ..............................................................................3

Evacuation

Opening the Service Valve (Step Valve) ................................3

CONNECT REFRIGERANT PIPING ..................................................4

Precautions................................................................................4

Liquid Line Sizes

Suction Line Sizes......................................................................4

SUBCOOLING CHARGING ............................................................5

OPERATION INSTRUCTIONS ..........................................................5

MAINTENANCE INSTRUCTIONS ....................................................5

CONDENSING UNIT NOMENCLATURE ..........................................6

LIMITED W

..............................................................................1

................................................................................3

........................................................................4

ARRANTY

....................................................................7

NOTE:
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED

SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT
AND OPERATION OF THIS EQUIPMENT. READ THE ENTIRE
INSTRUCTION MANUAL THOROUGHLY BEFORE ATTEMPTING
INSTALLATION OR OPERATION.

INTRODUCTION

You have made a major investment in a fine piece of
equipment. Keep your investment sound by reading these
instructions before installing this unit. This will ensure that
the full potential of this equipment is achieved. It will also
be helpful in avoiding any needless service costs or

perational problems. Included in these instructions are

o
safety rules, installation, operation, and maintenance
instructions.

nly the highest quality components were used in the

O
construction of your unit. With proper maintenance, your
system should provide years of economical, trouble-free
service.

NOTES TO INSTALLER

The words “SHALL” and “MUST” indicate a requirement
which is essential to satisfactory and safe product
performance. The words “SHOULD” and “MAY” indicate a
recommendation or advice which is not essential and not
required but which may be useful or helpful.

Installation and service personnel are required by some
locales to be licensed. Persons not qualified SHALL NOT
install this equipment nor interpret these instructions.

This installation and maintenance manual is provided to
ensure the proper installation and the most satisfactory
performance of your equipment. The instructions contained
herein SHALL NOT be deemed to extend, modify, alter or
expand any of the representations contained in the limited
warranty.

WARNING

A QUALIFIED INSTALLER MUST PERFORM INSTALLATION AND
SERVICE.

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE,
MAINTENANCE, OR USE CAN CAUSE EXPLOSION FIRE,
ELECTRICAL SHOCK, OR OTHER CONDITIONS WHICH MAY
CAUSE DEATH, PERSONAL INJURY, OR PROPERTY DAMAGE
AND WILL VOID THE WARRANTY. REFER TO THIS MANUAL FOR
PROPER INSTRUCTIONS.

DO NOT DESTROY THIS MANUAL. PLEASE READ CAREFULLY
AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE BY A
SERVICE TECHNICIAN.

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE
VAPORS AND LIQUIDS, OR OTHER COMBUSTIBLE MATERIALS
IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.

BEFORE PERFORMING ANY WORK ON THIS EQUIPMENT,
POWER SUPPLY MUST BE TURNED OFF AT THE HOUSEHOLD
SERVICE BOX TO AVOID THE POSSIBILITY OF SHOCK, INJURY,
DAMAGE TO EQUIPMENT, OR DEATH.

CONSULT A QUALIFIED INSTALLER FOR INFORMATION OR

ANCE.

ASSIST

CODES

The installer SHALL comply with all local, state, and federal
codes and/or regulations pertaining to this type of equipment
and its installation. Such codes and/or regulations should take
precedence over any recommendations contained herein in lieu
of local codes. Installations SHALL be made in accordance with
the National Electrical Code, local codes and recommendations
made by the National Board of Fire Underwriters. Consult local
building codes and National Electrical Code (NEC) for special
requirements.

RECOGNIZE SAFETY SYMBOLS,
WORDS AND LABELS

What You Need To Know About
Safety Instructions

Warning and Important Safety Instructions appearing in
this manual are not meant to cover all possible

onditions and situations that may occur. Common

c

ense, caution and care must be exercised when

s
operating or cleaning tools and equipment.

Always contact your dealer, distributor, service agent or
manufacturer about problems or conditions you do not
understand.

This is the safety alert symbol. It is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.

DANGER

DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious
injury.

WARNING

WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury.

CAUTION

CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate
injury.

CAUTION

CAUTION used without the safety alert symbol
indicates a potentially hazardous situation which, if not
avoided, may result in property damage.

INSPECTION AND UNPACKING

A thorough inspection of the shipping container should be
made immediately upon receiving the unit. Look for any
punctures or openings, and if it appears damage has occurred,
it should be noted on the freight bill before signing. The
delivering carrier should be contacted immediately to inspect
damage, and no installation work should begin until this
inspection is completed.

Locate rating plate on unit corner panel. It contains
information needed to properly install unit. Check rating plate
to be sure unit matches job specification.

Rating plate located inside
control box cover

1

INSTALLATION
Condensing Unit Location

The condensing unit should be located outdoors as close as
possible to the evaporator. Consider the following factors:

Clearances

he air inlet should be located at least 12" from a wall or

T
other obstruction for unrestricted air flow.

he air outlet should be located so as to direct discharged

T

ir away from the building. Three feet of clearance around

a
the unit and a minimum of six feet clearance above the
unit is required to avoid recirculation of condenser
discharge air on vertical discharge models. Avoid locating
unit under low overhanging roofs.

Support

Mount the unit on a sturdy base approximately four to six
inches above the ground. In areas known for snow
accumulation, the unit should be elevated at least 18"
above the ground. A concrete slab is recommended.
Concrete slab should not contact the building foundation
to prevent possible sound or vibration transmission.

Rooftop installation is acceptable in areas of low snow
accumulations, provided the roof will support the unit and
provisions are made for water drainage and the noise or
vibration through the structure.

Exposure

Placement of the unit should be in a well-drained area, or
the unit must be supported high enough so run-off will not
enter the unit.

Avoid installations under roof overhangs without
guttering. Water draining from the roof onto the unit
could produce excessive noise and may cause ice to build
up on the coil or fan during cold weather.

Locate unit away from windows, patios, decks, etc. where
unit operation sound may disturb customer.

Do not locate where heat, lint or exhaust fumes will be
discharged on the unit (as from dryer or furnace vent).

Proximity to Evaporator

Locating the condenser as close as possible to the

evaporator will increase the system capacities by reducing

the line set refrigerant pressure drop, and will make the

ystem less susceptible to liquid migrations due to less

s

refrigerant charge.

Electrical Connections

DANGER

BEFORE PERFORMING ANY WORK ON THIS EQUIPMENT,
POWER SUPPLY MUST BE TURNED OFF AT THE HOUSEHOLD
SERVICE BOX TO AVOID THE POSSIBILITY OF SHOCK,
INJURY, DEATH OR DAMAGE TO EQUIPMENT.

WARNING

ELECTRICAL EQUIPMENT SHOULD BE INSTALLED BY A
QUALIFIED, LICENSED ELECTRICIAN. IMPROPER
ELECTRICAL HOOK-UP MAY DAMAGE EQUIPMENT, CAN
CREATE A HAZARD, CAUSE PERSONAL INJURY OR
DEATH, AND WILL VOID THE WARRANTY.

1. The installer shall check available power to make certain it
matches the unit rating plate (located inside control box
cover) and that constant voltage can be maintained to the
unit. Unsatisfactory performance would otherwise result.
The local power company should be contacted regarding
any problems or questions concerning power supply.

112

Control box cover

Opening for line
voltage conduit or cable

Opening for
low-voltage wiring

111

Rain Gutters

Three feet

clearance

Concrete slab
or preformed pad

Six feet

clearance

above the

unit

Three feet

clearance

113

Wiring diagram and rating
plate are located inside
control box cover

2. Install a line service disconnect switch within sight of the
condensing unit. The line voltage service wiring for the
condensing unit should include a fused disconnect switch.

3. Use correct wire size and fuse size. To ensure that adequate
voltage will be available at the condensing unit, the line
voltage service wiring must be of adequate size. Minimum
recommended wire ampacities and maximum fuse sizes are
listed on the unit name plate.

4. Two holes are provided in the control box.

One is for the connection of the line voltage conduit or

a.

cable. The hole is sized for 3/4" conduit.

b. One is for low-voltage wiring. (Refer to the wiring

diagram attached to electrical box cover for connection.)

5. Be sure to ground the condensing unit by securing the

ground wire to the grounding lug inside the control box.
Be sure to follow National Electrical Code and all local

6.

codes.

2