Kelvinator JT4BE048KA Instruction Manual download pdf (Page 16)

Table 2. Filter Sizes

CABINET SIZE FILTER SIZE

A 12 x 20 x 1

B 18 x 20 x 1

C 20 x 20 x 1

RED LED (AN2) DIAGNOSTIC

OFF Control Fault (No Power)

Flash Blower Fault

ON Normal Operation

Table 3. Air handler Control Board Fault Conditions

UNIT MAINTENANCE

Proper maintenance is most important to achieve the best

performance from a air handler. Some of the components

and their locations are shown in Figure 12 (page 18). If

any component of the air handler must be replaced, use

only factory authorized replacement parts speciﬁed in the

Replacement Parts List provided online.

WARNING:

ELECTRICAL SHOCK, FIRE OR

EXPLOSION HAZARD

Failure to follow safety warnings exactly could

result in serious injury or property damage.

Improper servicing could result in dangerous

operation, serious injury, death or property

damage.

• Beforeservicing,disconnectallelectricalpower

to the indoor blower.

• Whenservicingcontrols,labelallwiresprior

to disconnecting. Reconnect wires correctly.

• Verifyproperoperationafterservicing.

• Thesemaintenanceinstructionsareprimarilyintended

to assist qualiﬁed technicians experienced in the proper

maintenance and operation of this appliance.

• Always reinstall the doors on the air handler after

servicing or cleaning/changing the ﬁlters. Do not operate

the air handler without all doors and covers in place.

• Verifythatthethermostatisproperlyinstalledandis

not being affected by drafts or heat from lamps or other

appliances.

• To achieve the best performance and minimize

equipment failure, it is recommended that a yearly

maintenance checkup be performed. At a minimum,

this check should include the following items:

Air Filter(s) - B6 Series Air Handlers are not supplied

with a single air ﬁlter when shipped from the factory. It

is recommended that the ﬁlter be cleaned or replaced

every 4 to 6 months at a minimum. Newly built or recently

renovated homes may require more frequent changing

until the construction dust has minimized. Filter sizes

shown in Table 2 are available at most local retailers.

WARNING:

Never operate the air handler without a ﬁlter in

place. Dust and lint in the return air can build

up on internal components, resulting in loss of

efﬁciency, equipment damage, and possible ﬁre.

Filters designed to remove smaller particles such as

pollen, may require additional maintenance.

Blower Compartment - Dirt and lint can create excessive

loads on the motor resulting in higher than normal

operating temperatures and shortened service life. It is

recommended that the blower compartment be cleaned of

dirt or lint that may have accumulated in the compartment

or on the blower and motor as part of the annual inspection.

Blower Fan Wheel - Inspect the blower wheel blades

for accumulations of dirt and clean if necessary. Inspect

mounting nut for tightness when done.

Blower Motor & Assembly - Inspect the blower assembly

and motor mounting brackets for tightness and corrosion.

Correct deﬁciencies if necessary. The blower motor

contains sealed bearings and under normal operating

conditions, no maintenance is necessary for the life of

the equipment.

TROUBLESHOOTING

If the air handler fails to operate, check the following:

• Istheelectricturnedon?

• Isthethermostatoperatingproperly?

• Aretheblowercompartmentdoor(s)inplace?

• Istheairhandlerdisconnectclosed?

• Hasthecircuitbreakertrippedorthecontrolboardfuse

burnedopen?

• Areanymanualresetswitchesopen?

• Isthelterdirtyorplugged?

• IstheLEDonbothcontrolboardsconstantlyON?Ifnot,

refer to Table 3 or Table 4 to determine fault condition.

Table 4. Motor Control Board Fault Conditions

DIAGNOSTIC

GREEN

LED

RED

LED

FIXED

SPEED

FURNACES

Control Fault (no Power) Off Off

normal oPeration On On

motor Fault On Flash

twin Fault (no motor Fault) Flash On

CommuniCations Fault Flash Flash

VARIABLE

SPEED

FURNACES

Control Fault (no Power) Off Off

normal oPeration On On

motor Fault On Flash

CommuniCations Fault Flash Flash

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 31 32

Comments to this Manuals

No comments

Kelvinator JT4BE048KA Instruction Manual Page 16

Comments to this Manuals