1. Locate the unit on side of structure opposite the prevailing
winds.
2. Elevate the unit to height where drifting sand cannot pile up
against coil. Four-in. high mounting feet are available as
accessories and can be used to elevate the unit.
3. Addition of coastal filter (see PDD for accessory listing).
Maintenance
1. Frequent inspection of coil and basepan especially after storms
and/or high winds.
2. Clean coil by flushing out sand from between coil fins and out
of basepan as frequently as inspection determines necessary.
3. In off season, cover with covering that allows air to circulate
through but prevents sand from sifting in (such as canvas
material). Do not use plastic as plastic will hold moisture.
Fig. 21—Air Conditioner Troubleshooting Chart
A90208
AIR CONDITIONER
TROUBLESHOOTING CHART
NO COOLING OR
INSUFFICIENT
COOLING
COMPRESSOR
WILL NOT RUN
CONTACTOR
OPEN
POWER SUPPLY
DEFECTIVE
LOW-VOLTAGE
TRANSFORMER
OPEN
THERMOSTAT
OPEN CONTROL
CIRCUIT
LOSS OF
CHARGE
CONTACTOR OR
COIL DEFECTIVE
LOOSE
ELECTRICAL
CONNECTION
CONTACTOR
CLOSED
COMPRESSOR
POWER SUPPLY
OPEN
LOOSE LEADS AT
COMPRESSOR
FAULTY START
GEAR (1-PH)
OPEN SHORTED
OR GROUNDED
COMPRESSOR
MOTOR
WINDINGS
COMPRESSOR
STUCK
COMPRESSOR
INTERNAL
PROTECTION
OPEN
DEFECTIVE RUN
CAPACITOR
OUTDOOR FAN
STOPPED OR
CYCLING ON
OVERLOAD
OUTDOOR AIR
RESTRICTED OR
RECIRCULATING
RESTRICTED
DISCHARGE
TUBE
OVERCHARGE
OR NON-
CONDENSABLES
IN SYSTEM
LOW
REFRIGERANT
CHARGE
LINE VOLTAGE
TOO HIGH OR
LOW
DEFECTIVE RUN
CAPACITOR
COMPRESSOR
BEARINGS
HIGH
SUPERHEAT
LOOSE LEAD
AT FAN MOTOR
MOTOR
DEFECTIVE
LOW SUCTION
PRESSURE
DIRTY AIR
FILTERS
DUCT
RESTRICTED
DAMPERS
PARTLY CLOSED
COMPRESSOR
RUNS BUT
CYCLES ON
INTERNAL
OVERLOAD
COMPRESSOR
RUNS BUT
INSUFFICIENT
COOLING
INCORRECT
OFM
CAPACITOR
INDOOR COIL
FROSTED
SLIGHTLY
LOW ON
REFRIGERANT
LIQUID LINE
SLIGHTLY
RESTRICTED
PISTON
RESTRICTED
INCORRECT
SIZE
PISTON
INDOOR COIL
STRAINER
RESTRICTED
INDOOR
BLOWER MOTOR
DEFECTIVE OR
CYCLING ON OL
HIGH SUCTION
LOW HEAD
PRESSURE
DEFECTIVE
COMPRESSOR
VALVES
INTERNAL
PRESSURE
RELIEF OPEN
HIGH SUCTION
LOW
SUPERHEAT
UNIT
OVERCHARGED
INCORRECT
SIZE
PISTON
18
Summary of Contents for 38TN
Page 19: ...19...
