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STATIC
500
5 kw
0.00
10 kw
0.00
15 kw
0.00
20 kw
0.00
STATIC
1100
1200
5 kw
0.00
0.00
10 kw
0.00
0.00
15 kw
0.00
0.02
20 kw
0.02
0.03
EQIPMENT DAMAGE HAZARD
Failure to follow this caution may result in unit component
damage.
Errors made when reconnecting wires may cause improper
and dangerous operation. Label all wires prior to disconnect-
ing when servicing.
The minimum maintenance requirements for this equipment are as
follows:
1. Inspect air filter(s) each month. Clean or replace when
necessary.
2. Inspect indoor coil, drain pan, and condensate drain each
cooling season for cleanliness. Clean when necessary.
3. Inspect blower motor and wheel for cleanliness each cooling
season. Clean when necessary.
4. Check electrical connections for tightness and controls for
proper operation each cooling season. Service when neces-
sary.
5. Ensure wires are not contacting refrigerant tubing or sharp
sheet metal edges.
Step 1—Air Filter
IMPORTANT: Never operate the unit without a suitable air filter
in the return-air duct system. Always replace the filter with the
same dimensional size and type as originally installed (See Tables
1 and 2 for recommended filter sizes.)
Inspect air filter(s) at least once each month and replace
(throwaway-type) or clean (cleanable-type) at least twice during
each cooling season or whenever the filter becomes clogged with
dust and lint.
Step 2—Indoor blower and motor
NOTE: All motors are prelubricated. Do not attempt to lubricate
these motors.
For longer life, operating economy, and continuing efficiency,
clean accumulated dirt and grease from the blower wheel and
motor annually.
Table 7—ELECTRIC HEAT PRESSURE DROP TABLE
600
700
800
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.00
0.02
0.04
1300
1400
1500
1600
0.00
0.01
0.02
0.03
0.01
0.02
0.03
0.04
0.03
0.04
0.05
0.06
0.04
0.05
0.06
0.07
Small Cabinet
CFM
900
1000
1100
0.00
0.00
0.00
0.00
0.02
0.04
0.04
0.06
0.08
0.06
0.08
0.09
Large Cabinet
CFM
1700
1800
1900
0.04
0.05
0.06
0.05
0.06
0.07
0.07
0.08
0.09
0.08
0.09
0.10
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Disconnect and tag electrical power to the unit before
cleaning and lubricating the blower motor and wheel.
Step 3—OUTDOOR COIL, INDOOR COIL, AND
CONDENSATE DRAIN PAN
Inspect the condenser coil, evaporator coil, and condensate drain
pan at least once each heating and cooling season or sooner if
conditions require.
The coils are easily cleaned when dry; therefore, inspect and clean
the coils either before or after each cooling season. Remove all
obstructions, including weeds and shrubs, that interfere with the
airflow through the condenser coil.
Straighten bent fins with a fin comb. If coated with dirt or lint,
clean the coils with a vacuum cleaner, using the soft brush
attachment. Be careful not to bend the fins. If coated with oil or
grease, clean the coils with a mild detergent-and-water solution.
Rinse coils with clear water, using a garden hose. Be careful not to
splash water on motors, insulation, wiring, or air filter(s). For best
results, spray condenser coil fins from inside to outside the unit.
On units with an outer and inner condenser coil, be sure to clean
between the coils. Be sure to flush all dirt and debris from the unit
base.
Inspect the drain pan and condensate drain line when inspecting
the coils. Clean the drain pan and condensate drain by removing all
foreign matter from the pan. Flush the pan and drain trough with
clear water. Do not splash water on the insulation, motor, wiring,
or air filter(s). If the drain trough is restricted, clear it with a
"plumbers snake" or similar probe device. Ensure that the auxiliary
drain port above the drain trough is also clear.
Step 4—Outdoor fan
UNIT OPERATIONAL HAZARD
Failure to follow this caution may result in damage to unit
components.
Keep the condenser fan free from all obstructions to ensure
proper cooling operation. Never place articles on top of the
unit.
1. Inspect the fan blades for cracks or bends.
16
1200
1300
1400
0.00
0.02
0.04
0.06
0.07
0.09
0.10
0.12
0.14
0.11
0.13
0.15
2000
2100
2200
2300
0.07
0.08
0.09
0.10
0.08
0.09
0.10
0.11
0.10
0.11
0.12
0.13
0.11
0.12
0.13
0.14
1500
1600
0.06
0.07
0.10
0.11
0.16
0.18
0.17
0.19
2400
2500
0.11
0.12
0.12
0.13
0.14
0.15
0.15
0.16
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