Howe Rapid Freeze, Руководство по обслуживанию

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3 Installing the Rapid Freeze Flaker
8
REFRIGERANT CHARGING
Special Precautions To Be Observed When Charging Refrigeration Systems
Only technically-qualified persons, trained and certified in the handling of refrigerant and operation of
refrigeration systems, should perform the operations described in this manual.
If a refrigeration system is being charged from refrigerant cylinders, disconnect each cylinder when empty or
when system is fully charged. A gauge should be installed in the charging line to indicate the refrigerant
cylinder pressure. The cylinder may be considered empty of liquid R-22 refrigerant when the gauge pressure
is 25 psi or less, and there is no frost on the cylinder. Close the refrigerant charging valve and cylinder valve
before disconnecting the cylinder. Loosen the union in the refrigerant line, SLOWLY and CAREFULLY, to
relieve refrigerant pressure in the charging hose.
*** WARNING ***
Never open charging valve allowing refrigerant to vent directly to atmosphere.
Refrigerant must be reclaimed through a recovery system.
*** WARNING ***
Always store cylinders containing refrigerant in a cool place. They should never be exposed to temperatures
higher than 125
°
F (52
°
C) and should be stored and secured in a manor to prevent abnormal mechanical
shocks.
*** CAUTION ***
Service/Installation personnel MUST have knowledge of refrigeration systems
to properly charge this ice flaker.
*** CAUTION ***
Verify that thermostatic expansion valve supplied with the ice flaker matches the refrigerant for the
refrigeration system or condensing unit.
*** WARNING ***
All Rapid Freeze BARE and Remote model ice flakers are shipped with a small holding
charge of dry Nitrogen.
SYSTEM MUST BE EVACUATED PRIOR TO CHARGING REFRIGERANT.
*** WARNING ***