Kelvinator JS4BE-048KA Installation Guide download pdf (Page 6)

2. Verify blower wheel is spinning in direction indicated by

arrow. Feel the air being circulated by the indoor blower

and verify that it is cooler than ambient temperature.

Listen for any unusual noises. If unusual sounds occur,

determine the source of the noise and correct as

necessary.

3. Verify HI and LO refrigerant pressures.

4. Allow the system to operate for several minutes and then

set the temperature selector above room temperature.

Verify the fan and compressor cycle off with the

thermostat. NOTE: The blower should also stop unless

fan mode is set to the ON position.

System Heating (optional)

1. Set the thermostat's system mode to HEAT and the

temperature mode above room temperature.

2. Verify the optional heating equipment (furnace or

electric heat) and indoor blower energize. Feel the air

being circulated by the indoor blower and verify that

it is warmer than ambient temperature. Listen for any

unusual noises. If unusual sounds occur, determine the

source of the noise and correct as necessary.

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ltersatthebeginning

of each heating and cooling season, or more frequently

if required.

• 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.

CAUTION:

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.

REFRIGERANT CHARGING

WARNING:

S4BE Split System Air Conditioners are shipped

charged with R410A refrigerant and ready

for installation. If repairs make it necessary

for evacuation and charging, it should only

be attempted by qualiﬁed trained personnel

thoroughly familiar with this equipment. Under

no circumstances should the owner attempt to

install and/or service this equipment. Failure to

comply with this warning could result in property

damage, personal injury, or death.

After refrigerant line connections are completed, it is

required that you leak check and evacuate the indoor

section and all line connections (using proper methods)

before ﬁnalizing the full system refrigerant charge.

• S4BEoutdoorunitswithnon-AHRIlistedindoorcoils

are not recommended. Deviations from rated airﬂows or

non-listed combinations may require modiﬁcation to the

expansion device and refrigerant charging procedures

for proper and efﬁcient system operation. Refer to Table

3, (page 10), Table 4, (page 10), Table 5, (page

11), or Table 6, (page 11) to determine the ideal

amount of sub-cooling for a given liquid pressure.

• Therefrigerantchargecanbecheckedandadjusted

through the service ports provided external to the outdoor

unit. Use only gage line sets which have a “Schrader”

depression device present to actuate the valve.

• Ahigh-pressureswitchisfactory-installedandlocated

in the liquid line internal to the outdoor unit. The switch

is designed to protect the system when very high

pressures occur during abnormal conditions. Under

normal conditions, the switch is closed. If the liquid

pressure rises above 575 psig, then the switch will open

and de-energize the outdoor unit. The switch will close

again once the liquid pressure decreases to 460 psig.

Please note that the switch interrupts the thermostat

inputs to the unit. Thus, when the switch opens and

then closes, there may be a 5 minute short cycling

delay before the outdoor unit will energize.

• Alow-pressureswitch(selectmodelsonly)isfactory-

installed and located in the suction line internal to

the outdoor unit. The switch is designed to protect

the compressor from a loss of charge. Under normal

conditions, the switch is closed. If the suction pressure

falls below 5 psig, then the switch will open and de-

energize the outdoor unit. The switch will close again

once the suction pressure increases above 20 psig.

Please note that the switch interrupts the thermostat

inputs to the unit. When the switch opens and then

closes, there will be a 5 minute short cycling delay

before the outdoor unit will energize.

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Kelvinator JS4BE-048KA Installation Guide Page 6

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