N4A6 Owners Manual
Table Of Contents
- A Note about Safety
- Thermostat
- What To Do If Your System Does Not Work
- Before Requesting a Service Call:
- 1. Check thermostat settings. Make sure to select a temperature below the actual room temperature. Make sure the system selector switch is in the COOL position.
- 2. Inspect your return air filter. Replace a dirty filter or clean a reusable type filter.
- 3. Check circuit breakers and/or fuses. Reset breakers or replace fuses as necessary.
- 4. Inspect the coils and fins on the outdoor unit. Clean away any obstructions (grass clippings, leaves, dirt, dust, or lint). Check that branches, twigs, or other debris are not obstructing the fan blade.
- If your system still does not operate, contact your servicing dealer.
- Before Requesting a Service Call:
- Regular Maintenance Requirements
- Table 1 – Maintenance Checklist
- 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.
©2019 International Comfort Products
650 Heil Quaker Avenue, Lewisburg, TN 37091
Catalog No: 421 02 5000 04
Edition Date: 08/19 Replaces: 421 02 5000 03
SPLIT SYSTEM AIR CONDITIONER:
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
2
Air Filter
Inspect air filters at least monthly and replace or clean as required.
Disposable type filters should be replaced. Reusable type filters may be
cleaned by soaking in mild detergent and rinsing with cold water. Install
filters with the arrows on the side pointing in the direction of air flow.
Dirty air filters are the most common cause of inadequate cooling
performance, and of compressor failures.
Condensate Drain
The indoor coil condenses water from the air, and this water must be
disposed through an appropriate drain system. During the cooling season
check at least monthly for free flow of drainage and clean if necessary.
Outdoor Unit Coils
Grass clippings, leaves, dirt, dust, lint from clothes dryers, and fall-off
from trees can be drawn into coils by movement of the air. Clogged
outdoor coils will lower the efficiency of your unit and could cause
damage to the compressor. Clean debris away from the outdoor coils.
Use a soft bristle brush with light pressure only. Do not damage or bend
coil fins. Damaged or bent fins may affect unit operation.
Painted Surfaces
In geographical areas where the water has a high concentration of
minerals (calcium, iron, sulfur, etc.) it is recommended that lawn
sprinklers not be allowed to spray on the unit. Spraying this type of
water on the unit may result in premature deterioration of the paint finish
and metal components.
Never use a weather cover over the outdoor unit unless it is a ventilated
type or made of breathable fabric that will allow moisture to evaporate
rapidly. A cover that holds moisture in the unit will cause more rust
build-up and damage than normal exposure to weather.
Table 1 – Maintenance Checklist
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 Warning 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.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to turn off electrical power could result in personal injury or
death.
Turn OFF all electrical power to both the indoor and outdoor units
before performing any maintenance or removing any panels or doors.
There may be more than one electrical disconnect switch.
Description of Maintenance
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