Carrier 24ACB Performance- User Manual

Installation Instructions

24ACB, 24ACC

Single --- Stage Comfort

t

Series Air Conditioners

with Puron

r

Refrigerant

1 --- 1/2 To 5 Nominal Tons (Sizes 18 to 60)

SAFETY CONSIDERATIONS

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. Consult a qualified installer, service agency, or your

distributor or branch for information or assistance. The qualified

installer or agency must use factory--authorized kits or accessories
when modifying this product. Refer to the individual instructions

packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,

and work gloves. Use quenching cloth for brazing operations.
Have fire extinguisher available. Read these instructions

thoroughly and follow all warnings or cautions included in

literature and attached to the unit. Consult local building codes
and current editions of the National Electrical Code ( NEC ) NFPA

70. In Canada, refer to current editions of the Canadian electrical
code CSA 22.1.

Recognize safety information. This is the safety--alert symbol

When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand

these signal words; DANGER, WARNING, and CAUTION. 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.

!

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.
Before installing, modifying, or servicing system, main

electrical disconnect switch must be in the OFF position.

There may be more than 1 disconnect switch. Lock out and

tag switch with a suitable warning label.

INSTALLATION INSTRUCTIONS

NOTE

: In some cases noise in the living area has been traced to

gas pulsations from improper installation of equipment.

1. Locate unit away from windows, patios, decks, etc. where

unit operation sound may disturb customer.

2. Ensure that vapor and liquid tube diameters are appropriate

for unit capacity.

3. Run refrigerant tubes as directly as possible by avoiding un-

necessary turns and bends.

4. Leave some slack between structure and unit to absorb vi-

bration.

5. When passing refrigerant tubes through the wall, seal open-

ing with RTV or other pliable silicon--based caulk. (See Fig.
1.)

6. Avoid direct tubing contact with water pipes, duct work,

floor joists, wall studs, floors, and walls.

7. Do not suspend refrigerant tubing from joists and studs with

a rigid wire or strap which comes in direct contact with
tubing.(See Fig. 1.)

8. Ensure that tubing insulation is pliable and completely sur-

rounds vapor tube.

9. When necessary, use hanger straps which are 1 in. (25.4

mm) wide and conform to shape of tubing insulation. (See
Fig. 1.)

10. Isolate hanger straps from insulation by using metal sleeves

bent to conform to shape of insulation.

INSULATION

VAPOR TUBE

LIQUID TUBE

OUTDOOR WALL INDOOR WALL

LIQUID TUBE

VAPOR TUBE

INSULATION

CAULK

Avoid contact between tubing and structure

NOTE:

THROUGH THE WALL

HANGER STRAP

(AROUND VAPOR

TUBE ONLY)

JOIST

1” (25.4 mm) MIN.

SUSPENSION

A94026

Fig. 1 -- Piping Installation

The outdoor unit contains system refrigerant charge for operation

with AHRI rated indoor unit when connected by 15 ft. (4.57 m) of
field--supplied or factory accessory tubing. For proper unit

operation, check refrigerant charge using charging information
located on control box cover and/or in the Check Charge section of

this instruction.

IMPORTANT

: Maximum liquid--line size is 3/8--in. OD for all

residential applications including long line.

IMPORTANT

: Always install the factory--supplied liquid--line

filter drier. If replacing the filter drier, refer to Product Data Digest
for appropriate part number. Obtain replacement filter driers from
your distributor or branch.