CPS CR500S Manuale operativo - Pagina 7

Sfoglia online o scarica il pdf Manuale operativo per Apparecchiature di prova CPS CR500S. CPS CR500S 7. Oil-less refrigerant recovery system

TROUBLE SHOOTING CHART

PROBLEM: The unit will only pull down to 0 pressure or a slight vacuum.

SOLUTION: Remove refrigerant hose from Suction port. Place a cap on this port:

If the unit pulls a vacuum, then the low side leak is somewhere between the

refrigerant hose and the equipment being recovered.

If the unit does not pull a vacuum, then suspect an internal low side leak on

the CR unit.

PROBLEM: The unit starts for a few minutes, then shuts-off.

SOLUTION: The high pressure switch has activated. Make sure the discharge

valve is open. Make sure the recovery tank valve(s) are open. Check for any

other restrictions on the discharge port of the unit. Correct restriction. Restart

the unit.

PROBLEM: The unit does not start and the thermal circuit breaker activates.

SOLUTION: If the unit fails to start, open the suction valve and rotate the center

valve to the "SELF-CLEARING" position for 5-10 seconds. Then rotate back to

the "RECOVERY" position. Reset circuit breaker. Push the START switch.

PROBLEM: The unit recovers at a very slow pace.

SOLUTION: Check the suction port filter. Replace or clean.

•

If the refrigerant to be recovered is from equipment with high contamination

levels of acid, moisture, etc.... it is recommended to utilize an in-line filter

drier placed before the suction port of the CR600 unit. An Alco EKO52 or

equivalent filter drier would provide adequate protection.

•

If large amount of liquid refrigerant (greater than 70lbs.) are present, it would

be recommended that Liquid Push-Pull method be performed first, then

follow by Direct liquid or vapor recovery.

•

A ball valve or an anti-blow fitting should be used on the end of the discharge

hose. This will prevent unnecessary loss of recovered refrigerant. It will also

protect the user from liquid refrigerant contact. Read General Safety instruc

tions on refrigerant contact.

• When recovering refrigerant under low ambient temperature conditions, add

heat o devices such as receivers, accumulators, etc.... to help vaporize the

refrigerant. This will greatly speed up the recovery process.

Learn more about automotive A/C tools and equipment we have.