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600
580
2, 2.5, 3.5, 4 TON MODELS
560
540
520
500
Remove refrigerant
480
460
if above the curve.
440
420
400
380
360
340
320
300
280
260
240
220
200
75
air conditioner maintenance
Warning:
to prevent electrical shock, personal injury, or
death, disconnect all electrical power to the unit
before performing any maintenance or service.
the unit may have more than one electrical supply.
Proper maintenance is important to achieve optimum
performance from the air conditioner. The ability to properly
perform maintenance on this equipment requires certain
mechanical skills and tools. If you do not possess these
skills, contact your dealer for maintenance. Consult your
local dealer about the availability of maintenance contracts.
Routine maintenance should include the following:
• Inspect and clean or replace air filters at the beginning of
each heating and cooling season, or more frequently if
required.
S4BE / SA4BE Charging Chart
1.5, 3, 5 TON MODELS
R-410A SATURATION
80
85
90
95
Liquid Temperature (F)
Figure 3. charging chart for 2 - 5 ton Units
Do not add or remove refrigerant if
pressure reading is between unit
curves and saturation curve.
100 105 110 115 120 125 130 135
• Inspect the condensate drain and outdoor coil at the
beginning of each cooling season. Remove any debris.
Clean the outdoor coil and louvers as necessary using a
mild detergent and water. Rinse thoroughly with water.
• Inspect the electrical connections for tightness at the
beginning of each heating and cooling season. Service
as necessary.
the unit should never be operated without a
filter in the return air system. replace disposable
filters with the same type and size.
• Do not attempt to add additional oil to motors unequipped
with oil tubes. The compressor is hermetically sealed at
the factory and does not require lubrication.
Add refrigerant if
below the curve.
caUtion:
11
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