Manitowoc Multiplex 42MA04 Installation, Operation And Maintenance Manual

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Manitowoc Multiplex 42MA04 Installation, Operation And Maintenance Manual Manual pdf 32 page image

32 Part Number 020002365 08/25/2015Operation Section 3How the Multiplex WorksMultiplex Model 42 & 44• 1 HP refrigeration unit• Post-Mix carbonated beverages and chilled carbonatedwater: 21 gal (79 L) of syrup or carbonated water/day or980 drinks/day (7,500 gal/yr)• 250 ft (80 m) maximum conduit lengthSuper-Chil Model SC1000• 1 HP refrigeration unit• Chilled water: 29 gal (110 L) in 2 hrs (peak); 15 gal (57 L)in 2 hrs (sustained 24 hrs)• 250 ft (80 m) maximum conduit lengthThese refrigeration units are remote refrigeration unitsthat derive their peak capacity from the reserve ice bank.These systems are controlled to cycle ON and OFF by theoperation of the ice control. The sensing probe that controlsthe ice bank is located on an adjustable bracket in the waterbath.Multiplex Model 50• 2.2 HP refrigeration unit• Post-Mix carbonated beverages and chilled carbonatedwater: 42 gal (159 L) of syrup or carbonated water/dayor 2,000 drinks/day (15,000 gal/yr)• 350 ft (107 m) maximum conduit lengthSuper-Chil Model SC2000• 2.2 HP refrigeration unit• Chilled water: 55 gal (208 L) in 2 hrs (peak); 30 gal (114 L)in 2 hrs (sustained 24 hrs)• 350 ft (107 m) maximum conduit lengthThese refrigeration units are remote refrigeration unitsthat derive their peak capacity from the reserve ice bankproduced by the operation of the compressor. Thesesystems are controlled to cycle ON and OFF by theoperation of the ice bank control. The sensing probe thatcontrols the ice bank is located on an adjustable bracket inthe water bath.Start-UpPLACING EQUIPMENT IN OPERATIONBefore placing equipment in operation, verify that allrequirements for roof mounted Remote Condenser units(if applicable) have been satisfied. Refer to the instructionson installing the Remote Condenser. Verify proper supplypower to unit.1. Fill the refrigeration unit water bath tank with water towithin 1/2" (13 mm) of the top of the overflow tube.2. Open the manual water shut-off valve to the watercooled condenser (if applicable). Refer to page 3-3 forcontrol programming sequence.3. Press “Comp/Agit” to begin building an ice bank.4. Ice will begin to form on the evaporator coils inapproximately 2 hours.5. The refrigeration unit will build an ice bank inapproximately 4 to 6 hours.6. If optional CO2/Water Control Panel has been installedon the refrigeration unit, refer to the installationinstructions for operation and testing the circuits forleaks.7. The carbonation circuits “A” and “B,” as well as thesyrup circuits must be checked for leaks and possiblecross circuits before turning ON the water supply tocarbonator pumps.8. Turn on main water supply. Set incoming regulator to55 psi on the CO2/Water control panel. Once water issupplied to the unit, air needs to be purged from thecarbonator tank. Do so by lifting press relief valve tabuntil water comes out of relief valve.9. Set bag-in-box syrup tank push pressure CO2 regulatorto 60 psi.PLACING THE SYRUP SYSTEM IN OPERATION1. Open the CO2 gas supply valve at CO2 tanks or bulktank. Adjust the CO2 pressure to 90 psi (6.2 bar).2. Open relief valve on top of the carbonator tank for 4seconds to bleed off air in tank.3. Verify the water supply to unit is on.4. Press the switch labeled “Carb A” (and “Carb B” ifapplicable). Allow carbonator to run and cycle OFF.5. Press the switch labeled “CIRC A” (and “CIRC B” ifapplicable).6. Activate all vales until a smooth, continuous flow orcarbonated water and non-carbonated water appear atthe valves.7. Allow at least 1 hour before proceeding to calibrationinstructions. You may complete the sanitizinginstructions during this period.

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Manitowoc Multiplex 42MA04 Installation, Operation And Maintenance Manual

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