• IF POSSIBLE OPERATE THE COMPRESSOR WITH PROPER CHARGE FOR 5 MINUTES WITH WARM PLATES TO RETURN OIL TO THE COMPRESSOR.
• REMOVE THE COMPRESSOR AND DRAIN THE OIL INTO A CUP.
• NOTE THE AMOUNT OF OIL REMOVED. (TOTAL OIL IN SYSTEM IS 6oz.)
• REMOVE THE VALVE UNIT AND BACK FLUSH IT (SEE DATA SHEET)
• REMOVE THE RECEIVER/FILTER/DRYER (R.F.D).

IF THE V/U IS PLUGGED OR SHOWS EVIDENCE OF BLACK OIL, ALL THE CONTAMINATED OIL MUST BE REMOVED FROM THE SYSTEM.  FLUSH THE PLATES WITH MINERAL SPIRITS AND COMPRESSED AIR OR NITROGEN.  MOST OF THE OIL WILL BE IN THE PLATES, SO FLUSH REPEATEDLY UNTIL THE MINERAL SPIRITS EXITING THE PLATES IS CLEAN.  FLUSH ALL COPPER TUBING TO REMOVE CONTAMINATED OIL.  A SUCTION LINE FILTER MAY NEED TO BE FITTED. CONTACT SEAFROST.

• REFIT THE V/U.
• INSTALL NEW R.F.D AND NEW COMPRESSOR.

DO NOT ADD OIL TO THIS COMPRESSOR. THE OIL QUANTITY HAS BEEN ADJUSTED TO ACCOUNT FOR A NEW RFD AND NO STANDING OIL IN THE SYSTEM. REMOVE ALL CONTAMINATED OIL BEFORE FITTING THE NEW COMPRESSOR.

• EVACUATE TO THE BEST VACUUM.
• CLOSE GAUGE VALVES AND LET THE SYSTEM STAND.
• IF THE LOW SIDE GAUGE HOLDS, PROCEED TO ADD R-134A CHARGE. PRESSURE RISES CHECK ALL CONNECTIONS. (ADD A MINIMUM AMOUNT OF REFRIGERANT TO DETERMINE THE LEAK LOCATION. RECOVER / RECLAIM THE REFRIGERANT AND RE-EVACUATE THE SYSTEM TO BEST VACUUM.)
• ADD CHARGE TO BRING THE SYSTEM PRESSURE TO BOTTLE PRESSURE.
• CAREFULLY LEAK CHECK ALL THE CONNECTIONS IN THE SYSTEM.
• START THE COMPRESSOR, WHILE ADDING 14 OZ. OF REFRIGERANT AS VAPOR. OBSERVE THE SIGHT GLASS AS THE LINE RETURNING TO THE COMPRESSOR BECOMES FROSTED.
• SLOWLY ADD CHARGE AT A PRESSURE UNDER 20 PSI UNTIL THE GLASS SHOWS MOSTLY CLEAR. (REFER TO THE DC5000 MANUAL.) TOTAL (MAXIMUM) CHARGE FOR THIS SYSTEM WILL BE ABOUT 24 OZ. THE SIGHT GLASS MUST CLEAR OR THE UNIT WILL NOT OPERATE PROPERLY.

THE LOW SIDE PRESSURE SHOULD DROP SLOWLY AS THE UNIT COOLS UNTIL AFTER ABOUT 60 MINUTES, THE 0-5 PSI RANGE. A RAPID DROP INTO A VACUUM INDICATES THAT THE VALVE IS PLUGGED OR FROZEN.  SEE ATTACHED PRESSURE CHARTS.

IF THE PRESSURE EXCEEDS 220 PSI THE MANUAL HIGH PRESSURE SWITCH WILL DISCONNECT. DO NOT ALLOW THE SYSTEM TO BE OPERATED IN THIS OVERCHARGED STATE; DOING SO WILL CAUSE EXCESSIVE WEAR ON THE COMPRESSOR.

• WARM WATER PRESSURES WILL BE 90 TO 125 ON THE HIGH SIDE.
• COLD WATER PRESSURES WILL BE UNDER 100 ON THE HIGH SIDE.

CONDENSING TEMPERATURE WILL GENERALLY BE 15 DEGREES WARMER THAN THE WATER.

PUMP SIZE AND WATER TEMPERATURE ARE ALL FACTORS IN THE OPERATING PRESSURES OF THIS SYSTEM. PLEASE CALL IF YOU HAVE QUESTIONS OR PROBLEMS.

PLATE TEMPERATURE WILL AFFECT RUN TIMES. IT MAY REQUIRE SEVERAL HOURS TO FREEZE THE PLATES IN A TWO PLATE DC5000 SYSTEM.

CLEANING THE VALVE UNIT (V/U)

WITH THE V/U IN THIS POSITION FILL THIS FITTING WITH CLEAN PAINT THINNER (MINERAL SPIRITS). MAKE AN ADAPTOR FROM RUBBER HOSE TO PRESSURIZE THIS FITTING WITH COMPRESSED AIR. USE LOW AIR PRESSURE (10 PSI). HIGH PRESSURE WILL SHUT THE VALVE.

SLUDGE, DIRT, AND CONTAMINANTS WILL BLOW OUT. COLLECT THE CONTAMINANTS IN A CLEAN CLOTH.

REPEAT THIS PROCESS SEVERAL TIMES UNTIL THE MINERAL SPIRITS COMES OUT CLEAN AND THERE IS AIR FLOW THROUGH THE VALVE. NOTE: THE VALVE IS A RESTRICTIVE DEVICE THAT WILL NOT PASS THE FULL VOLUME OF INPUT AIR.