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What is R290? 

• Common name for high purity propane (C3H8) suitable for use in the refrigeration and air 

conditioning industry. 

• Hydrocarbon (HC) refrigerant. 
• Proven safe, not an environmental threat – has been used in international markets for 

10+ years. 

• Already used in coolers, display cases, and chill cabinets. 

Why not R134A? 

• EPA and UE plans ban on R134A, effective between 2019 and 2022. 
• Most beverage cooler manufacturers moving to R290 as the alternative to R134A 

refrigerant. 

5.3. R290 REFRIGERATING CIRCUIT: 

FRIIA Service manual

 

Page 18 

5.3.1. Overview: 

5.3.2 Servicing R290 Equipment: 

R290 Service Overview 

• It is propane, so it is flammable. You MUST observe caution and proper safety practices 

when servicing R290 refrigeration systems. 

• Servicing refers to making repairs to the hermetically sealed system and any part of the 

electrical system. The EPA and UE set a limit, 150 grams/ 5.29 ounces, on the amount of 
R290 charge for commercial applications. 

• Repair on R290 systems must always be done in a well ventilated area. 
• Because R290 is highly flammable, a combustible gas leak detector is required when 

servicing R290 systems. 

Servicing R290 vs. R134A 

• Operationally very similar systems. 
• Operating pressure of R290 system slightly higher than an equivalent R134A system. 

Example: 

• At 38°C/100°F, evaporating pressure in an R290 system is approx. 46 psig/4,2 Bar. 
• At 38°C/100°F, evaporating pressure in an R134A system is 26.6 psig/2.84 Bar. 
• (See pressure chart in upper right column.). 
• Refrigerant charge in an R290 system is 40 – 60% less than an equivalent R134A 

system. 

Only Marco technicians or service providers trained on procedures for handling 
R290 refrigerant gas can carry out repairs on the chillers charged with R290. 

Summary of Contents for FRIIA 1000860 Series

Page 1: ...hiller Carbonator 1000860 FRIIA Chiller regional variance Marco Beverage Systems Ltd 74 Heather Road Sandyford Business Park Dublin 18 Ireland Tel Ireland 00353 0 1 295 2674 Tel UK 0044 0 1933 666 488...

Page 2: ...safety tips 15 5 TECHNICAL DATA 16 1 General Description 16 2 External Arrangement 17 3 R290 Refrigerating circuit 18 1 Overview 18 2 Servicing R290 Equipment 18 3 R290 Refrigerant circuit 19 6 ACCES...

Page 3: ...All information in this manual is current at the time of publication and is subject to change without notice Only technicians or service providers authorised by MARCO should carry out installation and...

Page 4: ...ss otherwise stated pictures are generic and for reference only and they are subject to technical change without prior notice The manufacturer reserves the right to modify the product and the relative...

Page 5: ...er the appliance malfunctions or has been damaged in any manner Switch off at the mains unplug or disconnect from outlet and turn off the water supply when not in use and before cleaning Allow to cool...

Page 6: ...d be plugged into the IEC connection on the back of the chiller then plugged into a suitable power outlet A US 3 Pin NEMA 5 15P plug to C13 IEC is provided with the 110V chillers Plumbing installation...

Page 7: ...al codes NSF compliant version already integrates a backflow prevention device ASSE1032 certified with a dedicated 100 mesh strainer both devices are enclosed in a stainless steel frame with dedicated...

Page 8: ...for the type of valve on the cylinder Please use dual gauge CO2 regulator PN 1400195 EU and 1400196 US Check for leaks using a solution of soapy water If you have a CO2 leak ventilate the contaminate...

Page 9: ...rmostat knob If the knob is turned in a clockwise direction the water will be cooler if turned in the opposite direction water will be less cool If the thermostat knob is turned completely anticlockwi...

Page 10: ...starts to fill The carbonation device stops when it reaches the maximum level Open the PRV vent on top of the Chiller by pulling the ring This operation allows the escape of any air bubbles present i...

Page 11: ...11 4 3 MAINTENANCE 4 3 1 ROUTINE MAINTENANCE To always ensure good equipment operation certain maintenance procedures described below are required DAILY MAINTENANCE 1 Water font Clean the font nozzle...

Page 12: ...values are as originally set DANGER ELECTRICAL MAINS Always isolate chiller from power supply before doing any work on it to prevent damage and health hazards 4 3 3 CLEANING THE CHILLER CONDENSER Chec...

Page 13: ...ular basis too to prevent resistant bacteria from becoming established Never exceed the contact times and maximum dosage concentrations recommended by the manufacturer Once the sanitizing fluid has fl...

Page 14: ...t the water connections and connect them to the sanitization cartridge 4 Turn on water mains and Power Supply Mains 5 Note position of temperature adjustment knob and then turn it to off position 6 NO...

Page 15: ...ug supplied is not used then ensure that the green yellow cable is connected to a suitable earth Risk of flooding The hose supplied with this unit is non toxic food quality tested to 190psi 1300 kPa H...

Page 16: ...ns Max Dimensions W D H Width 259 mm Depth 436 mm Height 457 mm w feet and Overpressure valve Voltage and frequency ratings 230 V 50 Hz 110V 60 Hz Max Power consumption 200 W Compressor nominal power...

Page 17: ...FRIIA Service manual Page 17 5 2 EXTERNAL ARRANGEMENT Outer lid Surround Handles Feet Front label Power On Green LED Service Push button Boiler connection Font connection PR Valve...

Page 18: ...g repairs to the hermetically sealed system and any part of the electrical system The EPA and UE set a limit 150 grams 5 29 ounces on the amount of R290 charge for commercial applications Repair on R2...

Page 19: ...tion pipe Filling pipe with its cap Condenser and condenser pipes priming pipe from compressor and filter pipe to filter drier Filter Drier Capillary pipe the lamination device welded between the filt...

Page 20: ...ect all water and CO2 connectors 3 Purge the CO2 from the machine 4 Allow to cool sufficiently 5 Remove the outer lid To remove outer lid undo 3 Phillips Screws 6 Release intermediate BOILER and FONT...

Page 21: ...ly 3 Remove the outer lid To remove outer lid undo 3 Phillips Screws 4 Remove surround To remove surround undo 2 Phillips Screws on front and 4 on back Place the panels to the side of the machine This...

Page 22: ...aintenance operations to external filters can clog the regulator To replace the pressure regulator disconnect inlet and outlet tubes and undo the 2 screws a b located on the backside of the chiller Du...

Page 23: ...module loosen the 2 screws c d located on the right side of the pump auxiliary bracket and remove the 2 screws on the left side a b the pump can now be removed for maintenance During removal be carefu...

Page 24: ...ctric wiring or the refrigeration group pipes For reassembly repeat the same operations in reverse order paying attention to assembling the electrical connections in the correct order a GN YE Ground c...

Page 25: ...ips screws holding the bracket If the dispense solenoid s need to be replaced unscrew the two Phillips screws holding the solenoid in place and remove tubing from solenoid body During removal be caref...

Page 26: ...access to the PCB Carefully remove the electrical connectors do not apply too much force to avoid damage Remove the PCB by undoing the 4 screws c located on the PCB itself During removal be careful no...

Page 27: ...omponents assembled on it Electronic Control Unit and PRV remove the 2 screws a b located on the back of the panel and c d e f located on the two corners of the top bracket During removal be careful n...

Page 28: ...RV firstly remove the tubing from hydraulic fitting and afterwards undo the fitting a from the PRV Carefully unscrew the PRV bolt b from the bracket and repair or replace the valve During removal be c...

Page 29: ...This can be done without removal of the outer lid simply keep the PRV with a pliers simply hold the steel valve body a in place while at the same time unscrew the plastic body of the PRV by acting on...

Page 30: ...be done removing the internal top bracket sub assembly with all components as described previously giving access to the carbonator Identify the two NRV the CO2 NRV a is the one directly connected to t...

Page 31: ...normal that the appliance works at a continuously high room temperature The compressor works continuously but the water is not cold Gas leak from the cooling system Contact a specialized technician r...

Page 32: ...r Hoses and pipe fittings into the carbonator are obstructed Disassemble and clean it Check valve on carbonator water inlet failed open Verify correct behavior of the non return check valve assembled...

Page 33: ...8 WIRING DIAGRAM FRIIA Service manual Page 33...

Page 34: ...9 HYDRAULIC DIAGRAM FRIIA Service manual Page 34...

Page 35: ...FRIIA Service manual Page 35 Functional Hydraulic Schematic...

Page 36: ...6 3 7 9 11 12 13 8 10 1 REAR WATER INLET 2 STOP VALVE H2O 3 FILTER H20 4 WATER INLET LINE 5 CO2 CYLINDER 6 CO2 PRESSURE REDUCER 7 CO2 INLET TUBING 8 CARBONATION CONTROL UNIT 9 CARBONATION PUMP 10 CARB...

Page 37: ...11 2 Outer frame FRIIA Service manual Page 37...

Page 38: ...11 3 Top bracket FRIIA Service manual Page 38...

Page 39: ...11 4 Front electronic bracket FRIIA Service manual Page 39...

Page 40: ...11 5 Pump and Electrovalve brackets FRIIA Service manual Page 40...

Page 41: ...11 6 Base FRIIA Service manual Page 41...

Page 42: ...CABLES AND HARNESSES FRIIA Service manual Page 42 620 UK 115Vac 621 622 623...

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