Victory Reach-In Manual de Serviço descarregar pdf (Página 72)

Section 7Diagnostics

7-4

Component Function/Specifications/Check Procedures

Main On/Off Switch

FUNCTION

Switches power to the reach-in on and off.

SPECIFICATIONS

Double pole single throw (DPST)

CHECK PROCEDURES

1. Check for proper line voltage (+/- 10%).

2. Inspect the switch for proper wiring.

3. Inspect the terminals for clean, tight

connections.

4. Check across the switch terminals with a

voltmeter. Replace the switch if you do

not obtain the results below:

Switch Position Voltage

On 0

Off line

Relay (if applicable)

FUNCTION

De-energizes the compressor if the high

pressure cut-out switch were to open

CHECK PROCEDURES

1. Disconnect power to the reach-in.

2. Disconnect wires from the relay and check

continuity at the terminals . Replace the

relay if you do not obtain the results

below:

Terminals Continuity

4 and 6 (contact

normally open)

no

0-1 (coil) yes

Temperature Control

FUNCTION

Opens and closes to start and stop the

compressor and condenser fan(s) to maintain

a constant cabinet temperature.

SPECIFICATIONS

Refrigerator

12° to 45° 16° differential

Freezer

-20° to +10° 10° Differential

CHECK PROCEDURES

If the reach-in continues to run in the cooling

cycle:

1. Turn the temperature control to the

warmest setting.

2. Hook a voltmeter across the temperature

control terminal leads.

3. If the voltmeter reads line voltage, the

control has opened and is functioning

normally. If the control fails to open,

replace it.

If the reach-in does not run:

1. Disconnect electrical power supply.

2. Turn the temperature control to the coldest

setting.

3. Isolate the temperature control and hook

an ohmmeter across the terminals.

4. If the ohmmeter registers continuity, the

control is good. See Service Diagnostic

Chart, “Reach-In Does Not Run” on page

7-1. If there is no continuity, replace the

control. See next page.

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 91 92

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