Carrier Infinity 24VNA0 User manual

Owner’s Manual
A Note About Safety
Any time you see this symbol in manuals, instructions and on the
unit, be aware of the potential for personal injury.
WARNING signifies hazards that could result in personal injury or
death.
CAUTION is used to identify unsafe practices which could 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.
About Your Air Conditioning System
Our products are designed, tested and built in accordance with US
Department of Energy standardized procedures and other standards;
however, actual operating results and efficiencies may vary based on
manufacturing and supplier tolerances, equipment configuration,
operating conditions and installation practices.
Identifying Your System
Your new Carrier cooling system is what we call a ”split system.” It has
an outdoor unit and an indoor unit connected to each other with copper
tubing called refrigerant lines. Each of these units has a rating plate with
the model and serial number on it. You will need these numbers when
calling an authorized Carrier dealer about your system.
Using Your New Carrier System
Your Carrier air conditioning system is controlled by a wall-mounted
Infinity Control installed inside your home. See the Infinity Control
Homeowner Guide for more details on system operation.
Infinity Variable Speed Operation
You may notice your system runs for longer periods of time. This
system is designed to meet the cooling needs of the home at a wide range
of conditions. Your indoor temperature will remain more consistent with
fewer drafts, better humidity control, enhanced comfort and enhanced
energy efficiency.
Cooling Your Home
For cooling operation, make sure the System or Mode control is set to
the appropriate mode, then adjust the Temperature control to your
desired setting. Finally, use the Fan control to select Automatic or On
(runs continuously).
Operation Under Extreme Conditions
Your air conditioner will run as long as necessary to maintain the indoor
temperature selected on your Infinity Control or thermostat. On
extremely hot days, your air conditioner will run for longer periods at a
time than on moderate days. Your system will also run for longer
periods of time under the following conditions:
• Frequent opening of exterior doors
• Operating laundry appliances
• Taking hot showers
• More than the usual number of people present in the home
• More than the normal number of electric lights in use
• Drapes or blinds are open on the sunny side of the home
Sound
Your new variable speed air conditioner is different from most cooling
systems. Because this is a variable speed system, it is designed to operate
at varying speeds depending on the temperature and humidity
conditions. You may notice the sound coming from the outdoor unit
changing from time to time depending on the weather conditions. The
higher speed produces a higher sound. This change of speed allows the
system to operate more efficiently and maintain comfortable conditions
inside the home as the outdoor temperature rises. These sound
variations are normal and do not represent a problem with your system.
ROUTINE MAINTENANCE
24VNA0
Infinity®Variable Speed Air Conditioner
with Greenspeed® Intelligence
2 to 5 Nominal Tons
WARNING
!
PERSONAL INJURY, DEATH AND / OR PROPERTY
DAMAGE HAZARD
Failure to follow this warning could result in personal injury, death or
property damage.
Improper installation, adjustment, alteration, service, maintenance, or
use can cause explosion, fire, electrical shock, or other conditions
which may cause personal injury, death and/or property damage.
Consult a qualified Carrier installer for assistance.
The qualified installer or service agency must use factory-authorized
kits or accessories when modifying this product.
Read and follow all instructions and warnings, including labels shipped
with or attached to unit before operating your new air conditioner.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Before installing, modifying, or servicing system, make certain the
main electrical disconnect switch is in the OFF position.
There may be more than 1 disconnect switch. Lock out and tag switch
with a suitable warning label.
NOTE: There may be more than one electrical disconnect switch.
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal injury.
Although special care has been taken to minimize sharp edges in the
construction of your unit, be extremely careful and wear appropriate
protective clothing and gloves when handling parts or reaching into the
unit.

©2019 Carrier Corp.
7310 W. Morris Street • Indianapolis, IN 46231 Catalog No: OM24VNA0-02
Edition Date: 08/19 Replaces:OM24VNA0-01
24VNA0: Owner’s Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
2
The following simple, routine maintenance will enhance your air
conditioning system’s ability to operate economically and dependably:
• Keep Filter Clean
A clogged or improperly installed air filter on your indoor unit will
increase operating costs and shorten the life of the unit. For detailed
filter cleaning information refer to your indoor unit literature.
• Do Not Block Floor, Wall or Ceiling Vents
When drapes, furniture, toys or other common household items block
vents, the restricted airflow lessens the system’s efficiency and life span.
• Do Not Cover or Block Outdoor Unit
The outdoor unit needs unrestricted airflow. Do not cover it or place
items on or next to it. Do not allow grass clippings, leaves, or other
debris to accumulate on the sides or top of the unit. And, maintain a 12”
(305 mm) minimum clearance between the outdoor unit and tall grass,
vines, shrubs, etc.
• Check Condensate Drain
Your air conditioner removes humidity from your home during the
cooling season. After a few minutes of operation, water should trickle
from the condensate drain of the indoor coil. Check this occasionally to
be sure the drain system is not clogged. Drainage will be limited if you
live in a very dry environment.
• Do Not Operate Below 55°F/13°C in Cooling Mode
Your outdoor unit is not designed to operate when outdoor temperatures
are lower than 55°F/13°C unless low ambient cooling has been enabled
through the wall control. If operation below this temperature is required,
consult your Carrier dealer.
• Base Pan Drainage
Periodically check for and remove debris that has settled around the base
of your outdoor unit. This will ensure proper drainage of the base pan
and eliminate standing water inside the outdoor unit.
• Level Installation
Your Carrier dealer will install the outdoor unit in a level position. If the
support base settles or shifts and the unit is no longer level, be sure to
have it re-leveled promptly to assure proper drainage. If you notice water
or ice collecting beneath the unit, arrange for it to be drained away from
the unit.
Sea Coast Coil Maintenance
Coastal locations often require additional maintenance of the outdoor
unit due to highly corrosive airborne ocean salt. Although your new
Carrier system is made of galvanized metal and is protected by top-grade
paint, take the additional precaution of periodically washing all exposed
surfaces and the outdoor coil. Consult your installing Carrier dealer for
proper cleaning intervals and procedures for your geographic area or ask
about a service contract for regularly scheduled professional cleaning
and inspections.
Troubleshooting
Before you request dealer service, check for these easily solved
problems:
• Check the indoor and outdoor disconnect switches Also check your
main electrical panel circuit breakers or fuses.
• Check for sufficient airflow. Air filter(s) should be reasonably clean
and interior vents should be open and unobstructed.
• Check Infinity Control or thermostat settings. For cooling, your
desired temperature setting should be LOWER than the displayed
room temperature, and the System/Mode control should be on Cool or
Auto.
• Time delays - There may be delays in unit operation that are built-in to
protect the equipment and your comfort. Don’t be alarmed if you
notice a time delay in operation. It may be a standard protection
feature of your equipment. Check with your Carrier Dealer for more
information on time delays.
Regular Dealer Maintenance
In addition to the routine maintenance that you perform, your home
comfort system should be inspected regularly by a properly trained
service technician. Many dealers offer this service at a reduced rate with
a service contract.
* Monthly maintenance items and outdoor unit rinsing may be performed by the consumer. All other maintenance items and all service work must be performed by a qualified service technician. Read all waring labels.
Notes:
1. The above list may not include all maintenance items. Inspection intervals may vary depending on climate and operating hours. Consult your HVAC dealer about a service contract for seasonal inspections.
2. Do not use harsh chemicals or high pressure water on coils. More frequent rinsing is required for units near a sea coast
Maintenance Checklist Recommended
Interval*
Outdoor unit specific: Monthly Annual
Clear away debris and vegetation near unit. X
Inspect cabinet for damage. Replace components that are damaged or severely rusted. X
Inspect electrical disconnect for proper function. Repair or replace as necessary. X
Inspect electrical wiring and connections. Tighten loose connections. Inspect and perform functional test of equipment as needed to ensure proper
function. Repair or replace damaged or overheated components and wiring. X
Check refrigerant system subcooling and/or superheat (system dependent). X
Inspect inside of unit. Clean if debris is present. X
Inspect condenser coil. Clean if dust, dirt, or debris is present. Rinse unit with fresh water (see Note 2). X
Inspect motor and fan for damage. Make sure fan spins freely. X
Indoor specific: (for fossil fuel furnaces and accessories, refer to unit specific literature)
Inspect, clean, or replace air filter if dirty. X
Inspect and clean blower assembly (includes blower housing, wheel, and motor). X
Inspect internal and external of cabinet. Clean as needed. X
Inspect electrical disconnect for proper function. Repair or replace as necessary. X
Inspect electrical components, wiring, and connections. Tighten loose connections. Repair or replace damaged components and wiring. X
Inspect evaporator coil. Clean if dust, dirt, or debris is present (see Note 2). X
Clean condensate pan, trap, and drain lines (more frequent maintenance may be required in humid climates - consult your local HVAC dealer). X
Inspect airflow system (ductwork). Check for leaks and repair as needed. X