Premier NV-1543 Service Manual Download Page 4

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BCD-230W 260W Service Manual

Printed at April 23, 2002

Fan motor: the rated input power is 5.0 W.
The rated loading speed is 2200

140 rpm.

Fan-switch: Usually, it is located at switched
off position. When the freezer door was
opened, it switches off the fan motor to protect
the blow out of the cold air and save the
energy.

Temperature control part: a common type
thermostat (WPF model) is used to control the
temperature of freezer and an auto-damper
control (WMF model) is used to control the
temperature of fresh-food compartment.

Illumination system: which include the lamp,
lamp hold and light switch etc. The light
switch is controlled by door. Opening door
will turn on the light, closing door turn off the
light. The lamp power should be no more than
15 W.

Defroster heater: it is a quartz heater coated
with deodorizing catalyzer. The input power of
heater is 145 W.

The control components for defroster heater:
that include a defroster timer, a defroster
thermostat and a safety fuse. The defrost cycle
time T

of timer is 8h & 48min

6min. The

delay time T

of timer is 2min24s

48s. The

defroster thermostat switch off temperature is
8

, the switch on temperature is -7

The safety fuse will be fused at 72(+0/-5)

1.1.3

Cabinet Structure

The cabinet of refrigerator is used for storing food
and supporting all other components of refrigerator,
as well as keeping from heat-transfer between
inside and outside of the refrigerator, it is mainly
composed of the following components:

Cabinet panel, door panel: they are shaped and
formed through a serious processes of cutting,
punching, rolling and bending from a 0.5mm

thick steel panel covered with a decoration
layer.

Cabinet Liner, door liner: they are both formed
through a vacuum forming process from a 2-
layers plastic board.

Thermal Isolation: for a good heat-isolation
capability, some thermal-isolation material as
polyurethane is filled between cabinet panel
and liner to form an integral layer after
foaming. The thermal isolation’s performance
is related to its dryness, so, it is important to
keep water away from heat-isolation layer at
any time.

Door gasket: There is a door-gasket filled with

magnetic-bar around the inner side of the door.
When the door is approaching the cabinet
closely enough, the magnetism will magnetize
the door tightly onto cabinet, hence isolating
the air shift between inner of the refrigerator
and outside of the cabinet.

Hinge: There is an upper hinge and a bottom
hinge for fixing the door.

Accessories: Those mainly include wired shelf,
water pan, ice tray and other parts.

1.2

Main Technical Parameters And Test

The major refrigerator parameters have been
labeled on the back of the refrigerator. The
performance of this product meets the Energy
Conservation standards tested according to Chinese
Standard GB 8059.1-1995 <<Household
refrigerating appliances-Refrigerator>> (equivalent
to ISO 7371:1995).

The safety guideline meets the requirements of
GB706.1-1998

Safety of household and similar

electrical appliances General-requirements

(equivalent to IEC 335-1) and GB4706.13-1998

Safety of household and similar electrical

appliances Particular-requirements for refrigerators
and food freezers

(equivalent to IEC 335-2-24).

The other major performance parameter is listed
below for reference.

1.2.1

Safety

Safety parameters that has relationship with service
are listed below:

1.2.1.1