PORTABLE REFRIGERANT RECOVERY UNIT User`s manual
Contents
1. OUT Mi Suction pressure gauge IN jvsaesuctionconnecion M Delivery pressure gauge F1 Filterdrer LOW HIGH Valve on high pressureine PURGE PURGEvalvefuncion SP Sightglass S1 Compressor service connection CV1 Check valve on delivery line 1 Compresor 2 Condensor fa Z Max pressure switch 27bar Delivery flexible hose Suction flexible hose KRZNA MI VALO JN LAMA WIGAM Wiring diagram L L1 L1 e e N N1 l NI e e PWR EN LI los 1 e e e e 1 47 E ZA A N2 2 o e Main Switch 4 Compressor p Fan PWR 1 MAX pressare switch 2 jFan o 9A o o WAVIWAZS A IA WIGAINM N si IR Ee CS Safety precautions a b c d e f g h m n o p r This equipment is designed for trained personnel only who must know the refrigeration fundamentals cooling systems refrigerants and possible damage that pressurized equipment may cause Carefully read the instructions contained in this manual strict observance of the procedures described is fundamental to the operator s safety the perfect state of the unit and constant performances as declared Do not operate the unit with different refrigerant than the one it has been designed for Before performing any op2. PORTABLE REFRIGERANT RECOVERY UNIT User s manual ENGLISH W tli Sistemi e strumenti per condizionamento e refrigerazione Air conditioning and refrigeration systems and instruments Anlagen und Gerate fur Klima und Kalteanlagen Syst mes et instruments pour conditionnement et refrigeration Sistemas e instrumentos para el acondicionamiento y refrigeracion J FM WIGAM srl reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations according to her policy of always improving her products Layout WIGAM S r l Printed in Italy 1st edition May 2002 EASYREC45 USER S MANUAL ENGLISH SOMMARIO TIV OLA COAT RN TT 4 Wining diagramM teme P ET RR 5 Satety sl TF Le inner cus A E cu Ee E sevo va tebe bab lea A SU CS E lea iure 6 1 Introduction to the recovery unit EASYREC45 1eeeeceeeeee seen nennen nnn nnn 7 2 Standard equipment and component description 7 2 1 RECOVERY COMPRESSOR T 7 2 2 3 gt A OVE ART A ara 0 A ea 7 2 3 PRESSURE GAUGE Saunas sn ao UR Mo Mai ool a bi 7 EET ram Rn 8 4 Recupero del refrigerante dall impiato A C eese eee nee eee 9 4 1 WV ANIM S ETEA E E AE A EE AFLE OE L TAE E EE DOE EE R OR RES MISI NE V COME 9
3. 4 2 REFRIGERANT RECOVERY aa ot deko e dwsdecsaniacumenisaatdenlatemalendeoniecsiuadeleaseineandaniantain 9 5 Refrigerant transfer with push pull method 10 5 1 UAE AN ea VTV ier rte iaa anui x daa apa are d cr S c taces ee kh ani 10 5 2 RERRIGERANI S TRANSPER sic bustum rcs eo a Paints n bare cav reja eh 10 6 Unit s drainage before the use with different PURGE refrigerant 11 6 1 WARNING MD L lm amp nc e DENE 11 6 2 DRAINAGE PURGE FUNCTION 2240221021452002 Rear ost EQUES SE RR CU VERE IO CERES LG R DUO 11 7 Ordinary malblenali B acu socie steer ior de cux esce tau sae Banc caussas eee 12 7 1 REQUIRED MALO Al seen o ass ae Sut CT AAP ai pote see ob ee N 12 7 2 PERIODICAL INTERVENTATIONS FOR ORDINARY MAINTENANCE 12 8 Max pressure switch resetting ss ss ss sss sss sss sss esse sese eena ennenen eee 12 9 Technical feature iscciiensecedsancesacvasscnataerewstacanssndacenssnadcawiesideamissdacnwarbadcuwdssndenwannaceaweenacenss 12 WIGAM 3 Hydraulic diagram M M2 P P Mas wo E J xE gt Z SN E J L J JER d kas m E H NI J m le m x L Pp dels Ci le YY 4 EE T e y N UJ v J FE PWR jMainswitch
4. equipped with two dry pressure gauges 280mm that can be adjusted with braked movement PULSE FREE to eliminate needle vibrations and allow a more accurate reading One pressure gauge on the suction line and one on the discharge line allow the pressure checking during recovery and refrigerant transfer with the Push pull method WIGAM 3 Control panel PWR Main switch OUT Mi Buelion pressure gauge SIN jv sae suction connection M Delivery pressuregauge F1 Pier dier LOW HIGH Valve on high pressure line PURGE PURGE functionvake WIGAM EASYREC45 USER S MANUAL ENGLISH 4 Recupero del refrigerante dall impiato A C 4 1 WARNING To recovery the refrigerant in a quick and efficient way it is recommended to connect the recovery unit to the cooling system trough a 2 way manifolds and flexible hoses with ball valves which are not included on the standard equipment Before starting the operation of refrigerant recovery the manifold the flexible hoses and the filter drier should have been in advance evacuated During refrigerant recovery the cooling system must be extinguished 4 2 REFRIGERANT RECOVERY ATTENTION During all the recovery phase be sure that the PURGE valve will be opened and that the V5 and V6 valve will be closed a By flexible hoses equipped by a ball valve connect the refriger
5. of the warning light of the green switch indicates that the refrigerant transfer has begun Watch the manifold sight glass the refrigerant transfer from the liguid receiver to the stockage cylinder is complete when you can see through the sight glass that the liguid refrigerant has stopped flowing When the refrigerant transfer has been completed close the cylinder vapour valve valve without tube Close the V1 valve and wait to read on the low pressure gauge M1 a pressure of 0 2 bar Turn the recovery unit off warning light 0 1 in position 0 Close the cylinder liquid valve and the flexible hose ball valve connected to it Close the V2 valve of the T2 flexible hose connected to the filter drier Close all the manifold and flexible hoses valves used for the connections The recovery of the residuals gaseous refrigerant from the inside refrigerant system can be done connecting the unit as shown in 4 2 Refrigerant Recovery 6 Unit s drainage before the use with different PURGE refrigerant 6 1 WARNING Once the filter drier has been used with a type of refrigerant it is closely imbued with it so before use the recovery unit with a different refrigerant it is necessary to substitute the filter drier and eliminate the residual refrigerant from the unit itself 6 2 DRAINAGE PURGE FUNCTION Considering the humble quantity of residual refrigerant in the unit drainage can be effected disposing of a big capacity cylin
6. To start the unit remove the RESET plastic cap on the right side of the unit and revive the max pressure switch Technical features Model Refrigerant Compressor Recovery speed Noise level Use of temperature C Storage temperature C Protection degree Power set up Electrical supply Dimensions mm Weight Kg WIGAM EASYREC45 CFC HCFC HFC dry Vapour kg h Liquid kg h Push Pull kg h dB A 70 0 40 10 50 IP20 525W 230 1 50 60 410 x 390 x 260 16 15 45 200 Loc Spedale 10 b 52018 Castel San Niccolo AR ITALY Tel 39 0575 5011 Fax 39 0575 501200 www wigam com ufficio tecnico wigam com
7. ant circuit to the recovery unit as shown by the picture T2 O U b Connect the T2 flexible hose valve delivery to the cylinder of stockage C Open the manifold valve manifold is not supplied with the unit d Open the stockage cylinder s valve e Open the T1 and T2 flexible hoses valves flexible hoses not supplied with the unit g Switch the recovery s unit on green switch of the control panel in position the starting of the switch s warning light indicate that the recycling is beginning Slowly open the LOW valve regulating the pressure on the M1 blue pressure gauge to avoid that it twill be higher than 4 bar When the inside pressure of 2 bar has been reached low blue pressure gauge M1 turn the unit off putting the PWR switch at 0 and close valve HIGH WIGAM 9 EASYIR 5 1 EC45 USER S MANUAL ENGLISH Refrigerant transfer with push pull method Duly connected by the push pull method the recovery unit allows the rapid transfer of the liquid refrigerant from the refrigerant system to an external cylinder WARNING Connect the recovery unit and the refrigerant circuit by a 2 way manifold flexible hoses with ball valve a cylinder with double valves liguid vapour anda filter drier these items are supplied separately on reguest and must be connect as shown by the picture 5 2 WIGAM Before use make sure that all the flexible hoses the filter drier the stocka
8. der duly evacuated a AVIS nu WIGAN Through a flexible hose connect the PU connection placed on the rear right side of the unit to the connection in vapour phase of an empty cylinder and verify that the PURGE right side V6 left side valves on the control panel will be closed By a T2 flexible hose connect the delivery connection OUT to the suction connection IN on the F1 filter Open the V5 valve Verify that the LOW HIGH valves and its eventuals valves on the T2 flexible hose will be opened Start the unit keeping the PWR switch in position 1 Wait till the pressure read on the M1 blue pressure gauge of low pressure reaches 0 2 bar Switch the unit off Keeping the PWR switch in position 0 Close the LOW and HIGH valves and disconnect the T2 hose from the filter Close the V5 valve and open the PURGE valve 1 2 Ordinary maintenance REQUIRED MATERIAL n n 1 MG111 filter drier 1 G19020 kit of 10 gaskets for flexible hose with 1 4 SAE connections PERIODICAL INTERVENTATIONS FOR ORDINARY MAINTENANCE a Replace the swivel connections gaskets of the flexible hoses as soon as they present wear marks b Replace the F1 filter each time a type of refrigerant is changed and at least once every 6 months Max pressure switch resetting When the pressure of 27 BAR has been reached the max pressure switch which the unit is due operates restraining all the functions
9. eration make sure that the hoses used for connections have been previously evacuated and that they do not contain non condensable gases Avoid skin contact the low boiling temperature of the refrigerant about 30 C can cause freezing Avoid breathing refrigerant vapors It is recommended to wear suitable protections like safety glasses and gloves contact with refrigerant may cause blindness and other personal injuries Do not operate near open flames and hot surfaces the high temperatures decompose the refrigerant releasing toxic and caustic substances which are hazardous for the operator and the environment Always make sure that the unit is connected to a suitably protected mains supply provided with an efficient earth connection Before performing maintenance operations or when the unit will not be used for a long period of time turn the unit off by turning the main switch to 0 and disconnect the power supply cord absolutely follow the sequence of operations Operate the unit only in locations with suitable ventilation and a high number of air changes Before disconnecting the unit make sure that the cycle has been completed and that all valves are closed in order to avoid release of refrigerant to the atmosphere Never fill any tank with liquid refrigerant to more than 75 of its maximum Capacity During operations avoid release of refrigerant to the environment this precaution is required by international environmental sta
10. ge cylinder and the recovery unit have been in advance evacuated or that they contain the same refrigerant as the one to be transferred Make the refrigerant s transfer with the refrigerant s system turned off The stockage cylinder must have a capacity equal to the quantity of refrigerant that has to be removed anyhow it must be not charged further than 75 of its maximum capacity It is recommended the use of an electronic scale in order to check the refilling of the stockage cylinder REFRIGERANT S TRANSFER a Operate on the refrigerant s system in order that the most part of the refrigerant will be pumped in the liquid receiver b By flexible hoses with ball valve connect the manifold to the connection of the cooling system liquid receiver of and to the stockage cylinder liquid valve with tube see the above figure C By a flexible hose T1 with ball valve connect the recovery unit filter drier IN to the stockage cylinder vapour valve valve without tube d By a flexible hose T2 connect the exit connection OUT of the recovery unit to the vapour connection of the A C system e Open the LOW and HIGH valves of the recovery unit f Open the V1 and V2 valves of the flexible hoses T1 and T2 of the recovery unit g Open the connections flexible hoses ball valves h Open the manifold valves I Open the stockage cylinder valves k Keep the warning switch O l in position the starting
11. ndards and is essential to avoid difficult leak detection in a refrigerant polluted environment The equipment must always work under the operator s control Protect the unit from dripping Do not modify the calibration of safety valves and control systems If you recover refrigerant from a cooling system equipped with a water evaporator and or condenser it is necessary to drain water from the evaporator and or condenser or to keep the circulation pump running during the entire recovery operation in order to avoid frosting MAJ IN ieee WAVI N A KV A VAVI NE NI IU AU AUN 1 Introduction to the recovery unit EASYREC45 Considering its reduced volume and the extreme facility of transportation the unit is suited for interventions on civil conditioner automotive vehicle conditioners dispensers domestic and commercial refrigerators and dehumidifiers The unit is supplied with an oil less compressor without lubricant 2 Standard equipment and component description 2 1 RECOVERY COMPRESSOR The unit model EASYREC45 is equipped with an oil less compressor and is adapt for any type of CFC HCFC and HFC refrigerant 2 2 FILTER The filter drier is equipped by 1 4 sae threaded male connections A knurled female swivel connection connects the filter to the cooling system and allows the manual removal of the filter for the periodic maintenance 2 3 PRESSURE GAUGES The unit EASYREC45 is
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