Cornelius I Series Especificaciones descargar pdf (Pagina 35)

TP00952

November 26, 200130

REFRIGERANT DEFINITIONS (ASHRAE 3-1990)

RECOVERY

To remove refrigerant in any condition from a system and store it in an external container without neces-

sarily testing or processing it in any way.

RECYCLING

To clean refrigerant for reuse by oil separation and single or multiple passes through devices, such as

replaceable core filter-driers, which reduce moisture, acidity, and particulate matter. This term usually ap-

plies to procedures implemented at the field job site or at a local service shop.

RECLAIM

To reprocess refrigerant to new product specifications by means which may include distillation. Will re-

quire chemical analysis of the refrigerant to determine that appropriate product specifications are met.

This term usually implies the use of processes or procedures available only at a reprocessing or

manufacturing facility.

NOTES REGARDING RECLAIM:

“New product specifications” currently means ARI standard 700-88. Note that chemical analysis is re-

quired to assure that this standard is met.

Chemical analysis is the key requirement to the definition of “Reclaim”. Regardless of the purity levels

reached by a re-processing method, the refrigerant is not “reclaimed” unless it has been chemically ana-

lyzed and meets ARI Standard.

HIGH PRESSURE SAFETY SWITCH

All water-cooled, remote products and air cooled 500’s contain a high pressure safety cut-out switch. The

function of this switch is to shut down the cuber should excessive pressure develop in the high side of the

refrigeration system. This switch will open the power supply at 450 PSI (30.61 BAR) high side pressure.

Should this control open, it must be reset manually and the cause for the increase in pressure deter-

mined.

COMPRESSOR RUN-ON

Contactor remains energized when curtains are in a full bin condition – compressor runs but water pump

and condenser fan (AC) are off.

1. Check VAC at contactor coil with an analog voltmeter (dial type, not digital).

A. Voltage at the contactor coil 12 VAC or higher may hold the coil energized. Turn the power

switch OFF, if contactor de-energizes, replace the circuit board, the snubber circuit is leaking.

B. Should you find 1/2 normal line voltage, replace the circuit board, the triac is shorted.

C. If no voltage or very low voltage (6 VAC or less) is present and plunger is still closed, replace

the contactor.

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Cornelius I Series Especificaciones Pagina 35