Meat and Deli Display Counters are usually refer to the supermarket refrigerated counters for display meat and deli or other food .
The failure phenomenon of meat and deli
display counters: compressor can't start running after plug it on, and with the
unnormal noise of counter relay ticktack.
Analysis and repair method : Check for the overload for starter relay. Take off the relay and thermal protector,
connect the down-lead directly,
after electrify will start operation and terminal into short circuit, the motor
can be up and running, then the working current is normal. Check
if the starter relay is
hurt by using for a long period of time and become uneven, poor contact.
Fault handling results: for the starter
relay is in the type of
totally enclosed, it cannot be opened and repaired, closed contact for its own friction
method was performed to repair, methods: will start the relay carry, when
motion vibration relay, contact to burnish, generally by two to three days,
contact can grind the neat, used to troubleshoot.
Emergency treatment: generally there is a
circuit control board inside the display counter, its effect is to reduce the current power line road when start running the unit, the compressor will start
after 1.5 seconds.
According to this characteristic, firstly remove
the damaged circuit board, and then fix the relay and contactor to the display counter, and adjust
the transient time of the time relay with 1.5 seconds.
The display counters should placed somewhere with a good ventilation and low
environmental temperature, leave space with more than 30 centimeters in
width for the condenser to
keep away from the wall.
Meat and Deli Display Counter
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