Haier BD-478A Manual do Utilizador Página 1

BD-478A Freezer Service Manual ●Features ●Door lock for safety storage ●High pressure foam cover for efficient Temperature preservation. ●Adjus

９INSTALLATION AND ACCESSORY PARTS Installation and Accessory Parts l Do not over fill freezer for proper internal air circulation. Electrical Requi

１０Operating Your Freezer INSTALLATION AND ACCESSORY PARTS Installation and Accessory Parts Once the freezer is in its proper place, plug it in an e

１１INSTALLATION AND ACCESSORY PARTS Installation and Accessory Parts Food Storage Basket Your Freezer has 1 or 2 removable basket. It allows you to

１２ SYSTEM FLOW CHART System Flow Chart The refrigeration system of direct cooling single-system freezers belongs to the category of a

１３ FUNCTION SCHEDULE Function Schedule Set the temperature, on the temperature contrail knob.”1”being the warmest and “6”being the coldest. Init

１４ CIRCUIT DIAGRAM Circuit Diagram Brief description of principle about BD-318A/428A: Brief description of principle about Thermostat: Wh

１５12.1.1 Servicing freezer (1)Check the whole circuit of freezer, if there are wire connections came off, any wires broken, or a short circuit. (

１６(1) Leakage of compressor: mainly because of serious vibration, the motor coil of compressor contacts with the shell, the coat of enameled wire w

１７tetra chloromethane or alcohol to clean it. If the leakage occurs in the inner of compressor, it needs to be changed. (3) Leakage of temperature

１８(1) At normal operation conditions, the temperature around the surface of freezer evaporator is nearly the same; the thickness of frost layer is

１ Contents 1. Contents……………………………………………………………………….……1 2. Product Code Illumination and Series Introduction…………………………… 2 3. Features ……………………………………

１９normal running sounds. If there is heavy buzz that means the motor has not been started normally. If there is bump sound, this means that the sus

２０please move your hand over it quickly, otherwise your hand will be stuck. (4) At normal operation of freezer, the temperature of filter dryer cov

２１(2) If noise is caused by tighten loose of screw between the base cover and freezer body, please make it tight. (3) If the reason for noise is th

２２near thermal source or not; if the room temperature is too high or not; if the condenser is blocked by cloth pieces or paper or dirt or not. Any

２３not effective, take a piece of sponge with about 10mm wide, 5mm thick, a little longer than the seam and put it inside the seal bar, i.e., the pl

２４Problems Reasons Removing methods Compressor can not be started 1. Fuse is broken 2. The contact of plug, socket, and cable is not good. Cab

２５repeatedly. change. After short time of operation, over load protection unit cuts off 1. The voltage is too high. 2. Over load protection unit i

２６The fan doesn’t run 1. Check if any connection has come off. 2. Check is the fan is burned. 1. Change the fan. 2. Change the fan. Electricity le

２７(1) Switch off power. (2) Remove side protection cover. (3) Unscrew fastening nut. (4) Hold the base end of temperature sensing tube and the cont

２８bad thermal protection unit is normally caused by burn contact points or a bad heating wire. ⑤ The motor winding are burned. ⑥ The compressor sha

２PRODUCT CODE ILLUMINNATION AND SERIES INTRODUCTION Product Code Illumination and Series Introduction B D -- □ □ A B C D

２９several minutes later it starts again and stops automatically again. With in cycles like this and the motor, or starter, and thermal protection u

３０(1) Operation method of repairing equipment (please see instruction manual). (2) Special requirements ① The time interval from opening of compre

３１(5) Remove the compressor. (6) Install new compressor and new filter dryer and weld them. The open time of system shall not be more than 10 min.

３２(4) When seal plug of compressor is removed, if there is no gas flowing sound (no pressure), the compressor shall not be used. (5) Compressor has

３３greater than 45°, so that the sliding door could not move out from its guiding slot and other accident will not happen. (2) The clearance between

３４(10) Cold drinks and snacks, which contain much milk and needs to be stored at low temperature, please try to put them at lower part of freezer.

３５electricity consumption. (1) At a regular period, when the frost layer reaches about 5mm, please remove it by plastic shovel. (2) When removing

３６condenser, fan, compressor and temperature controller. Wipe clean and avoid damaging pipes and electrical parts. (2) Switch on power and check th

３７12.5.1 Freezer repair tool and equipment (1) Recovery machine (2) N2 container, O2 container, acetylene container and torch kit. (3) Thermometer.

３８(2) Please keep the pliers, pipe cutting unit and Hansen valve clean, and keep them away from grease dirt. 12.5.3 Procedure for filling equipment

３FEATURES Features ●Door lock for safety storage ●High pressure foam cover for efficient Temperature preservation. ●Adjustable thermostat. ●Sup

３９(3) Filling ① Determine the filling quantity first according to the freezer being repaired. (Each small mark of the liquid tube is 25g, each big

４０Freezer noise mainly comes from the compressor. The Compressor generates various sounds. There are continuous and not continuous, periodic and no

４１Compressor parts, such as compressor body, exhaust tube, noise eliminator in compressor, supporting spring, etc., will cause resonance sometimes

４２At operation of compressor, it breathes in and exhausts out gas continuously. When liquid refrigerant flows through capillary, there will be gas

４３sometime? Answer: After half a year or one year’s use, clearance will increase because of wear of inner components, and compressor’s noise will i

４４Answer: This is because the affection of freezer noise to people is relative to the level of environmental sound. In noisy city or shops, people

４５(2) Put freezer onto 5-10mm elastic cushion. (3) Freezer must be empty and running at least 30 minutes before measuring. If normal stop happens,

４６approximate value of sound power level. The restriction to noise in national standard is more strict and scientific. At present, freezer noise is

４７(3) When freezer stops, the compressor decelerates, high pressure and low pressure at gas exhausting tube and returning tube will get balance, th

４８Answer: Normally speaking, freezer noise within the range of national standard is normal. But if there is continuous sound of metal contacting fr

４SPECIFICATIONS Specifications Model BD-388A BD-478A Capacity (L) 388 478 Power Supply (V/Hz) 220V~ /50Hz 220V~ /50Hz Unit Dimension (W*D*H) 1

４９empty. Turn the knob of temperature controller to middle or near to strong position and close the door or cover. Make the measurement at least 30

５０A=l1/2 +d b=l2/2 +d c=l3/2 +d Take d=1m Then S=4(ab+bc+ac) The positions of measuring points are shown in table 4. 12.8Measuring technology of

５１temperature with load. Type tests include items (1), (2), (8), (9), (10), (13), (17), (18), (20), (21) and the followings: (22) total effective v

５２voltage is 1650V (50Hz) for 2s. At the test, there will not flashover and breakdown occurring. 12.8.2.4 Ground resistor Check the voltage drop be

５３material of enclosure structure of test room is made up of 10mm thick polyurethane or polystyrene, which has good insulation. There are air re-tr

５４ Dimensions (mm) Mass (g) Note Small Middle Big 25×50×100 50×100×100 50×100×200 125 500 1000 In the geometrical center of 5oog pack, there is a

５５sensing parts of thermometers, and put the bottom end of gauze into distilled water) under the blowing of wind with the speed of 2.5-3m/s. Record

５６types 25℃; T type 32℃. Test time is 24h. The consumption of storage freezer and storage and freezing freezer shall be less than 115% of rated; fr

５７ Marketing model: BD-388A/478A Exploded ViewEdition:2005 12 01CARTONUSER MANAUL

５８No. Spare parts number Spare parts description in english Model QTY. Price list Failure rate the proportion of the spare-part stock Remark 1 007

５SAFETY PRECAUTIONS Safety Precautions Read all of the instructions before using this appliance. When using this appliance, always exercise basic s

５９28 0070202885 Panel control BD-388A/478A 1 0 0 X 29 0075040013 Thermostat BD-388A/478A 1 0.392% 0.600% * 30 0072070010 Thermostat prote

６０63 0075080006 Lamp switch BD-388A/478A 1 0.010% 0.020% * 64 0075120011 Lamp BD-388A/478A 1 0.010% 0.020% * 65 0077050051 Screw BD-388A/4

６SAFETY PRECAUTIONS Safety Precautions 7. This freezer should not be recessed or built-in an enclosed Cabinet. It is designed for freestanding in

７NET DIMENSION Net Dimension HaLWH Model BD-388A BD-478A Unit Dimension (W*D*H) 1420*715*810 1690*715*810 Dimension (Door open) 1420*715*147

８INSTALLATION AND ACCESSORY PARTS Installation and Accessory Parts Unpacking Your Freezer 1.Remove all packaging material; this includes the foam b