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Operation manual RCWC-04D11

  

                         

OM-RCWC-04D11

      

 

                              2014                        13 

Adding refrigerant! 

 
 
If  the  refrigerant  quantity  is  insufficient,  refrigerant  should  be 
added. 
 
In normal operating conditions and tempered chambers, the low 
pressure  should  be  around  1.0-2.5  bars  and  the  high  pressure 
should not exceed 21 bars. 
 
 
Insufficient  refrigerant  is  established  by  checking  the  sight 
glasses of the liquid for bubbles . 
 
 
 
If  you  are  not  sure  about  presence  of  liquid  in  the  glasses,  you 
can stop the chamber while the compressor is operating and see 
whether there are bubbles on the sight glass. 
 

a)

 

Connect  the  service  hose  to  the  liquid  port  of  refrigerant 

bottle and the low pressure service port (SP1) of the KV1 valve at 
the valves panel.  

 

 

 

 

 

 

Sp1

Содержание RCWC-04D11

Страница 1: ...Operation manual RCWC 04D11 OM RCWC 04D11 2014 1 OPERATION MANUAL PROVISION STORE COMPRESSOR CONDESER UNIT RCWC 04D11 Fresh Sea water cooled ...

Страница 2: ...Operation manual RCWC 04D11 OM RCWC 04D11 2014 2 ...

Страница 3: ...n this manual Read carefully Signs used in this manual The Hazard sign attracts the attention to a certain procedure or practice which if not followed may result to serious damage to people and property The Warning sign shows procedures which if not followed may result in serious damage to the machine Important notes ...

Страница 4: ...company Description of the system The compressor condenser unit RCWC 04D11 combined with forced air coolers is designed to cool up to two refrigerated room with up to 2 C in one of them and up to 18 C in the other Two compressor condenser groups have been mounted in the chassis where the dimensions of each one have been determined so that it can supply the two refrigerated rooms The first group is...

Страница 5: ...ovement shall be correct in order to provide for effective heat exchange It is a semi hermetic piston compressor The piston group is directly coupled by the integrated electrical motor The stator is cooled by the freon that moves through it The compressor condenser unit is also equipped with an oil separators for each compressor that separate the oil from the hot steam and return it to the compres...

Страница 6: ...ed on the chassis of the unit and equipped with protective systems and contactors operates the compressors fans and defrosting System elements 1 Control panel 2 Compressor 1 3 Compressor 2 4 Condenser 2 5 Condenser 1 6 Pressure protection switch compressor 2 Pressostat 7 Pressure protection switch compressor 1 Pressostat 8 Gauges 2 LP HP compressor 2 9 Gauges 1 LP HP compressor 1 10 Receiver Sucti...

Страница 7: ...r 2 V6 14 Ball valve gas pipe cooler V11 15 Ball valve gas pipe freezer V10 16 Liquid injection solenoid EV3 V7 17 Liquid cooler ball valve solenoid sight glass EV2 V8 SG2 18 Liquid freezer ball valve solenoid sight glass EV1 V9 SG1 19 Suction rottalock valve 20 Discharge rottalock valve 21 Compressor oil sight glass 11 12 13 14 15 16 17 18 19 20 21 ...

Страница 8: ... 25 Liquid rottalock valve VK2 26 Low pressure suction line KP1 P4 LPS2 27 Compressor 1 protection pressostat KP17 P1 28 Low pressure gauge compressor 1 29 High pressure gauge compressor 1 30 High pressure suction line KP1 P3 LPS1 31 Low pressure gauge compressor 2 32 High pressure gauge compressor 2 33 Compressor 2 protection pressostat P2 25 23 22 24 ...

Страница 9: ... an open off position Check whether any voltage of the phases is below or above the permissible one and that the imbalance does not exceed 7 Connection to the water unit of the condenser Connection of sensors or other external devices to the control terminals accident alert etc Check the components of the external water main system pump user equipment filters supply to cisterns and tanks if any fo...

Страница 10: ...valve second picture maximum open valve with closed service port third picture open valve with open service port 7 The discharge valve of the selected compressor VR1 or VR3 opens 8 Valve V1 or V2 respectively opens 9 All switch along the front panel of the control panel are switched off 10 The power supply is switched on and all fuses in the panel are switched on Power supply pilot lamp light 11 W...

Страница 11: ... cooler and freezers are turned on 18 The compressor selected via the refrigerant valves is started from the switch of the control panel 19 The compressor needs to start operating and its amperemeter and gauges shall be observed The operating current must be less than 7 5A and the high pressure must be lower than 20 bar 20 The compressor shall switch off based on low pressure 21 Valve V5 or V6 ope...

Страница 12: ...er from the main power switch d Run the compressor at short intervals through the Test button until the low pressure reaches 0 2 0 4 bars if pressure becomes lower than 0 0 bar open the suction valve V5 or V6 slightly until the pressure is increased to over 0 0 bar e In case of positive pressure 0 2 0 4 bars connect the service hose to the low pressure service port located on the low pressure valv...

Страница 13: ...gh pressure should not exceed 21 bars Insufficient refrigerant is established by checking the sight glasses of the liquid for bubbles If you are not sure about presence of liquid in the glasses you can stop the chamber while the compressor is operating and see whether there are bubbles on the sight glass a Connect the service hose to the liquid port of refrigerant bottle and the low pressure servi...

Страница 14: ...tem is completely empty of refrigerant and or oil The system must be charged with oil and or refrigerant in case of an accident or commissioning of the system Pre check the system for nitrogen leaks a Power supply must be stoped b Open all valves of the system and connect the service gauges to service ports SP3 of valve V10 and service port SP5 of valve V9 c The solenoid valves shall be forced ope...

Страница 15: ...e of system depressurization repairs on the compressors or if the filter permeability is reduced When the system is operating and the filter dehydrator is clogged the liquid pipe after the filter is cooled The difference between the temperature at the filter inlet and outlet shall not exceed 2K The method for changing the filter dehydrator when the system is operating is described below a Close th...

Страница 16: ... are switched on If the power supply has been off for more than 6 hours you need to wait for the compressor crankcases to warm up min 2 h Changing the compressors a Switch off the chambers b If the operating compressor is upright wait until it stops and switch it off from the key c If you want to stop compressor 1 close valves VK1 and V5 or respectively valves VK2 and V6 for compressor 2 d Close t...

Страница 17: ... 1 overload alarm 17 PL Compressor 2 high pressure alarm 18 PL Compressor 2 overload alarm 19 PL defrost freezer 20 Button manual defrost freezer 21 PL defrost cooler 22 Button manual defrost cooler 23 PL Compressor 1 low pressure alarm 24 PL Compressor 1 high temperature 25 PL Compressor 2 low pressure alarm 26 PL Compressor 2 high temperature 27 PL freezer evaporator fan running 28 PL cooler eva...

Страница 18: ...rant Clogged filter dehydrator Lack of blowing of the evaporator o Automatic reset pressure protection switch compressor Compressor high temperature The temperature of the operating compressor engine is high Clogged filter Insufficient refrigerant Damaged high temperature module located in the compressor electrical box Damaged refrigerant injection system Damaged TEX valves of the evaporators Auto...

Страница 19: ...ch monitors the temperature of the heads of the two compressors with sensors Dt1 and Dt2 type Pt1000 The IN1 controller has pulse with modulation outlet that operates the EV3 valve When the head temperature reaches 100 degrees liquid is injected Within the range between 100 C and 110 C the length of the injection impulse changes from 1 sec to 10 sec with period of 10 sec Example in case of 103 C t...

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