GEL Series Gelato Cabinets Manual - Master-Bilt
Contents
1. INSTALLATION INSTRUCTIONS GENERAL INSTRUCTIONS 1 2 Be sure the equipment is properly installed by competent service people Keep the equipment clean and sanitary so it will meet your local sanitation codes Clean the cabinet with a mild detergent and water then rinse Rotate your stock so that older stock does not accumulate This is especially important for ice cream A First In First Out rotation practice will keep the products in good salable condition Do not place product in the case when it is soft or partially thawed Also product should not be put in the case for at least 4 hours after it is started Stock cases as quickly as possible exposing only small quantities to store temperatures for short periods of time When replacing burned out fluorescent tubes be sure that the electrical power to the lighting circuit is turned off 5 MBMASTER BUT Befrigernban Suar NOTICE TO STORE OWNERS MANAGERS A WARNING Moisture or liquid around or under the cabinet is a potential slip fall hazard for persons walking by or working in the general area of the cab2. 17 MBMASTER BILT Flefngarniion Solvin
3. LIST The table below gives Master Bilt part numbers Use this chart when ordering replacement parts for your GEL cabinets Always Advise Cabinet Serial Number When Ordering Parts Description GEL 6 GEL 9 GEL 12 Ballast 23 01709 23 01704 23 01704 36 Bulb Lamp F25T8 23 01577 23 01577 2 24 Bulb Lamp F32T8 23 01576 2 Bulb Holder 23 50562 2 23 50562 4 23 50562 4 Bulb Shield 25 01274 25 01274 2 25 01274 2 Drain Trough Heater 17 09435 17 09436 17 09437 Compressor 03 14985 03 14985 2 03 14985 2 Anti Sweat Heater Front 17 09432 17 09433 17 09434 Anti Sweat Heater Rear Deck 17 09432 17 09433 17 09434 Condenser Coil 07 13076 07 13076 2 07 13076 2 Condenser Fan Blade 15 13093 15 13093 15 13093 Condenser Fan Motor 13 01283 13 01283 13 01283 Electronic Controller 19 14243 19 14243 19 14243 Cabinet Sensor T1 19 14244 19 14244 19 14244 Defrsot Sensor T2 19 14245 19 14245 19 14245 CRO Valve 09 00992 09 00992 09 00992 Drier 09 09171 09 09171 09 09171 Evaporator Coil 07 13313 07 13314 07 13315 Evaporator Motor Blade Assy 13 13199 13 13199 13 13199 3 8 Solenoid Valve 09 09645 09 09645 09 09645 5 8 Hot Gas Solenoid Valve 09 09826 09 09826 09 09826 Expansion Valve 09 09453 09 09453 09 09453 Lamp Switch 23 50793 23 50793 23 50793 Receiver Tank 09 01162 09 01162 09 01162 Contactor 19 13934 19 13934 2 19 13934 2 Time Delay Relay 19 13707 19 13707 14 MBMASTER BILT SALE AND DISPOSAL OWNER RESPONSIBILITY If yo
4. two solenoid valves The 3 8 solenoid valve is normally closed and the 5 8 solenoid valve is normally open During a normal refrigeration cycle the 3 8 valve is closed the 5 8 valve is open and refrigerant is allowed to flow through the condenser coil and the expansion valve before flowing through the evaporator coil See the figure on the next page During a defrost cycle both valves are energized The 3 8 valve opens the 5 8 valve closes the condenser coil and the expansion valve are bypassed and hot gas is introduced to the evaporator coil for defrosting See the figure on the next page CONDENSER coL RECIEVER ALLY O SOLENOID VALV NS a QUID LINE FILTER DRIER 9 MBMASTER BILT Refnipernian Suar OPEN LENOID LLY O ot SER CO NDEN CO 10 MASTER BILT Refnipernian Solos MASTER BILT ELECTRONIC REFRIGERATION CONTROL DESCRIPTION INDICATIONS amp Thermostat output Fenoutput RU Auxiliary output O v il Activation of 2nd parameter set A Alarm Fig 1 Front panel i gt Info Setpoint button aM Increase manual activation button v Manual defrost Decrease button XO Exit Stand by button OPERATION DISPLAY During normal operation the display shows either the temperature measured or one of the following indications DEF Defrost in progress HI Room hig
5. GE SETPOINT noorse seve da ener ana USA edie beng art vale a nde 12 EIST PARAMETERS a a lant eert iia 12 PROBE CONNEGCTIONS iasiieriicachet added caida 12 SERVICE INSTRUCTIONS aa sanzernseneneane can A NSA SUNNA NEN sens ANNU NK TA NNN SANE NONNA N VA NTM NR ANSA 13 FINAL GHECK LIST s5isiai mapin A a s v v TEN wa Tahoma dace salaa mavea enue 14 MASTER BILT PART NUMBERS 5255 ren iik a cis scene a De Neko VAN TS ag n Sekaan vT San N deelden 14 SALE AND DISP O SA a fcigececsecdendssscvecszacecescgcatedesugadessdecsicseeieddenwscdeaveniccneevesdenaedastaednis dacsets 15 WIRING DIAGRAMS ccoo A a de onea 16 17 2 M BMASTER BILT INTRODUCTION Thank you for purchasing a Master Bilt cabinet This manual contains important instructions for installing using and servicing a Master Bilt GEL case A parts list is included with this manual Read all these documents carefully before installing or servicing your equipment STORE CONDITIONS The Master Bilt GEL cases are designed to operate in the controlled environment of an air conditioned store The store temperature should be at or below 75 F and a relative humidity of 55 or less At higher temperature or humidity conditions the performance of these cases may be affected and the capacity diminished It is not uncommon in a newly constructed store for the temperature and humidity to be above design conditions These excessive conditions may produce sweating in the case until the store is opera
6. GEL 6 9 12 Installation amp Operations Manual Master Bilt Products 908 Highway 15 North New Albany MS 38652 Phone 800 684 8988 PN 018 90000 Rev 01 09 12 TABLE OF CONTENTS INTRODUCTION rror zereeversnarnenenne e a iaa ana daiaire ri aidian YHKNV AISN eins 3 STORE CONDITIONS oo id ai a 3 WARNING LABELS AND SAFETY INSTRUCTIONS nononono eenen eenennennenennenennen serene enenneneenen eenen 4 PRE INSTALLATION INSTRUCTIONS nnn onnnerenseenenseennnerensenrenseenenanennnenenneerenseensnanenanenennnenensennnnnvennnneensenns 5 Inspection for Shipping Damage nennen en enenenenenen nananana kanaa an akan aa aa aa eenen eneen eneen 5 INSTALLATION INSTRUCTIONS ii ouere venen senwennsdenensensosnaredenwnnenhes a ai 5 General NSIUCHONS 2 03 err reerde nein th albaranes had a 5 NOTICE TO STORE OWNERS MANAGERG nnn neen een annan a Kaanaa eee eee nessa eens snes eee 6 CABINET CLEANING PROCEDURES rauser k sken asiaasi ct cote STA senen a ta 6 Cabinet Monthly ChecKIis xi v usai isns sanana aa sanana naan nein an ala aka ana Nasan VAN NAMA N NA aa TAM NAO enden NSA LAMAN KAN nena riada 7 EXTERNAL CLEANING a dalend 7 WEEKLY DEFROS Tico it 7 MACHANICAL ovio A A A a id 7 ELECTRICAL 2 as 8 HOT GAS REFRIGERANT PIPING cocido rai 9 10 ELECTRONIC REFRIGERATION CONTROL nennen oen ennnerensnen onse rennerenseerenseenenanenenenenseerenneennnanennneeennerenn 11 MANUAL DEFROST raises manden e re ai eta ape ne ie eel eet 11 HOW TO CHAN
7. High head pressure and high back pressure A Condenser coil clogged or restricted B Condenser fan motor defective C Air discharge in front of cabinet restricted 2 Low back pressure and low head pressure A Restriction in system B Refrigerant undercharged C Leak in system 3 Pressure normal cabinet warm A Coil blocked with frost see 4 B Refrigerant undercharged C Control set too warm 4 Cabinet not cycling coil blocked with frost A Defective temperature controller Refrigerant overcharged Evaporator Fan Motor defective Hot gas defrost duration not long enough or too few defrosts Condenser clogged Condenser fan motor defective onmmoog Hot gas solenoid valve defective 5 Copressor starts and runs but cycles on overload A Low voltage B Relay defective C Overload defective 13 MB MASTER BILT Retrigenniian Suar FINAL CHECK LIST A Check operating pressures W Check electrical reguirements of unit to supply voltage C Set temperature control for desired temperature range D Check sight glass for proper refrigerant charge if provided E Check system for proper defrost settings and operation F Check condensing unit for vibrating or rubbing tubing Dampen and clamp as reguired G All valves should be completely opened counter clockwise H Check packing nuts on all service valves Replace all service valve caps and latch unit covers MASTER BILT PART
8. ades If dust or dirt is noticeable simply wipe the fan blades with a damp cloth as with other surfaces After cleaning replace any equipment that was previously removed and started the condensing unit and return power to the lights fans and heaters CLEANING As a regular maintenance routine the condenser coil should be cleaned approx every 6 to 12 months depending on store conditions Keep the equipment clean and sanitary so it will meet your local sanitation codes Wipe up all spills clean with water and a mild detergent then rinse with clean water Wipe the exterior and gasket area as needed 6 MB MASTER BILT Retnigenniian Suar Cabinet Monthly Checklist 1 Check condenser coil clean if necessary 4 Check for excessive noise 2 Check service valve packing for leaks evident by oil 5 Check for proper temperature adjust if traces necessary 3 Check for obstruction restricting air flow over the 6 Check for proper operation sequence in evaporator coil and the condenser coil Insure that normal refrigeration cycle and defrost cycle the air intake is not obstructed when applicable EXTERNAL CLEANING Clean the front and side glass panels and the end panels and serving surfaces with warm water and a mild detergent Never use steel wool abrasives glass paper or similar products Never use acids chlorines ammonia etc as it could damage the cabinet surface WEEKLY DEFROSTING For enhanced performance and efficienc
9. ed electrician The portions of this manual covering refrigeration and electrical components contain technical instructions intended only for persons qualified to perform refrigeration and electrical work This manual cannot cover every installation use or service situation If you need additional information call or write us Customer Service Department Master Bilt Products Highway 15 North New Albany MS 38652 Phone 800 684 8988 Fax 800 684 8988 3 MB MASTER BILT Refniperniian Suar WARNING LABELS AND SAFETY INSTRUCTIONS This symbol is the safety alert symbol When you see this symbol on your cabinet or in this manual be alert to the potential for personal injury or damage to your equipment Be sure you understand all safety messages and always follow recommended precautions and safe operating practices A NOTICE TO EMPLOYERS You must make sure that everyone who installs uses or services your cabinet is thoroughly familiar with all safety information and procedures Important safety information is presented in this section and throughout the manual The following signal words are used in the warnings and safety messages DANGER Severe injury or death will occur if you ignore the message WARNING Severe injury or death can occur if you ignore the message CAUTION Minor injury or damage to your cabinet can occur if you ignore the message NOTICE This is important installation operation or service information If
10. h temperature alarm REC Recovery after defrost LO Room low temperature alarm OFF Controller in stand by E1 Probe T1 failure CL Condenser clean warning E2 Probe T2 failure DO Door open alarm INFO MENU The information available in this menu is T1 instant probe 1 temperature TLO Minimum probe 1 temperature recorded T2 Instant probe 2 temperature CND Compressor working weeks THI Maximum probe 1 temperature recorded LOC Keypad state lock Compressor When power is first turned on the controller will go through the start up After the start up delay the compressor comes on The LED indicator stays on while compressor relay is energized Display will show actual box temperature Picture above is the display layout The compressor will be cycled off when the actual box temperature reaches its set point The COMP indicator will be off Fan The fans will run constantly except when a defrost is initiated or when the evaporator temp is above the 30 F When in defrost mode the fan is off until the end of the defrost and the 2 minute drip time has passed There is 2 minutes delay after a defrost before the fan comes on If the Evaporator temperature is 35 F or below the controller will override the fan delay FAN LED indicator is on while FAN relay is energized Defrost The control uses time defrost with 4 defrost per day The defrost scheme can be re set the for special applications During Hot gas defrost the display will show dEF and the defrost LED indica
11. inet Any cabinet malfunction or housekeeping problem that creates a slip fall hazard around or under the cabinet should be corrected immediately If moisture or liquid is observed around or under a Master Bilt cabinet an immediate investigation should be made by qualified personnel to determine the source of the moisture or liquid The investigation should determine if the cabinet is malfunctioning or if there is a drainpipe leaking CABINET CLEANING PROCEDURES WARNING To avoid electrical shock disconnect main power supplies to the merchandiser before beginning this procedure May have more than one disconnect switch The exterior of the cabinet should simply be wiped clean with a Warm damp cloth daily This will be sufficient to keep the merchandiser looking its finest Do not use a brush scouring pad or any abrasive material on the painted surfaces To clean the interior of the cabinet the condensing unit and power to the merchandiser fans lights and heaters should be shut off Disconnect all power before cleaning All product in the cabinet should be removed and stored in an appropriate facility All shelving trays Pans etc should be removed and cleaned separately For cleaning the air discharge honey comb in the back wall Romove the honey comb retainer that s hold the honey comb in place by unscrewing all the thrump scews Gently pull out all the honey combs Wash with hot warm water only and carefully replace it back Be sure
12. ng SP Temperature Set Point SPL SPH 10 F HYS Temperature Differential 1 to 255 F 7 SPL Minimum Temperature limit setpoint 50 SPH 20 F SPH Maximum Temperature limit setpoint SPH 120 15 F AHA High Temperature alarm 50 120 30 F ALA Low Temperature Alarm 50 120 40F ATD Temperature Alarm Delay 0 120min 30min DFR Number of Defrost Cycle per 24hr 0 24 4 day DLI Defrost Termination Temperature 50 120 55 F DTO Maximum Defrost Duration 1 120min 20min ELECTRICAL CONNECTIONS The controller is provided with screw terminal block to connect cables with a cross section up to 2 5 mm Before connecting cables make sure the power supply complies with the control s requirements Separate the probe cables from the power supply cables from the outputs and the power connections Do not exceed the maximum current allowed on each relay in case of heavier loads use a suitable external relay or contactor s PROBE CONNECTIONS The probes shall be mounted with the bulb upwards to prevent damages due to casual liquid infiltration It is recommended to place the thermostat probe away from air streams to correctly measure the average room temperature Place the defrost termination probe among the evaporator fins in the coldest place where most ice is formed far from heaters or from the warmest place during defrost to prevent premature defrost termination 12 MB MASTER BILT Refnigpernian Soui SERVICE INSTRUCTIONS 1
13. se is off Always use a qualified technician Check voltage and amps drawn on the data label to determine proper line and fuse or circuit breaker size Check power supply for low voltage If voltage reads 230 with no load and it drops below 207 when the compressor tries to start it is an indication of too small supply wiring or too long to run It is recommended that a separate circuit be run for each cabinet to prevent another appliance blowing the fuse or breaker causing loss of product A IMPORTANT This cabinet is pre wired internally for separate 115 and 230 volt circuits Tapping or feeding the 115 volt circuit from 230 volt supply may result in overloaded circuit breakers or blown fuses and damage to electrical system thereby voiding the warranty The cabinet should be grounded A IMPORTANT This cabinet will require a separate 115V circuit for the condensate drain pan unless the drain will be piped to a floor drain 8 MB MASTER BILT Befrigeralian Sudan HOT GAS REFRIGERANT PIPING The Master Bilt GEL series of cabinets is equipped with a hot gas defrost This involves some extra piping from an electrical or air defrost system The diagrams here show only one condensing unit and one set of connection points at the evaporator It should be noted however that the GEL 9 and GEL 12 have two condensing units each unit having evaporator connection points at each end of the evaporator There are
14. the honey combs is dry before putting it back inplace to provent from ice build up blocking the air flow The interior as well as the exterior of the cabinet may be cleaned with a germicidal detergent at the manufacturer s recommended concentration Do not use any ammonia based products as this may damage the electrical components in the cabinet Again do not use a brush scouring pad or any abrasive material on the painted surfaces Use a soft brush or cleaner pad for built up dirt stains or spills Remove only the necessary mechanical parts to access the evaporator coil and fan housing Care should be taken not to unnecessarily soak fan motors electrical connections controls or any wire raceway Wipe all surfaces with a damp cloth A sanitizer should then be thoroughly sprayed onto the surfaces and again wiped with a damp cloth Remove only the necessary mechanical parts to access the condenser coil and compressor housing Care should again be taken not to unnessarily soak fan motors electrical connections time clock ballasts or any wire raceway Check the condenser coil to insure that it is not clogged with dirt dust or lint A dirty or clogged condenser coil will result in diminished performance of the cabinet The condenser should be brushed with a plastic bristled brush For dust or dirt that has accumulated deep inside the condenser use compressed air to blow the dirt through the coil Do not let dust or dirt accumulate on the fan bl
15. tional and the ambient environment is more desirable The Master Bilt GEL should not be positioned where it is directly exposed to rays of the sun or near a direct source of radiant heat or air flow No HVAC return or supply air ducts may be located near case openings This will adversely affect the case air flow and will result in poor performance Do not open windows or doors that will affect the case air flow The maximum air velocity near the case is 30 FPM This case is designed to be open to the front customer side of the case and open at the rear server side of the case This case should not be placed against a wall that closes off the front or the rear of the case To comply with sanitation reguirements the cabinet must be sealed to the building floor with NSF Listed Silicone Sealant or mounted on 6 Minimum legs or casters NOTICE Read this manual before installing your cabinet Keep the manual and refer to it before doing any service on the equipment Failure to do so could result in personal injury or damage to the cabinet A DANGER Improper or faulty hook up of electrical components on the refrigeration units can result in severe injury or death All electrical wiring hook ups must be done in accordance with all applicable local regional or national standards A NOTICE Installation and service of the refrigeration and electrical components of the cabinet must be performed by a refrigeration mechanic and or a licens
16. tor on The control begins timing the defrost when power is turned on Four defrost per day means it will occur every 6 hours To have defrost occur at 8am 2pm 8pm and 2am then power up at one of these four times MANUAL DEFROST Hot gas Defrosting may also be induced manually by keeping the defrost button for 3 seconds Once defrost has started the controller will go through a defrost and drip time pull down cycle 11 MB MASTER BILT Beingerdion Sofi HOW TO CHANGE THE SETPOINT m Press button E for at least half second to display the setpoint value m By keeping button pressed use button e or a to set the desired value adjustment is within the minimum SPL and the maximum SPH limit m When button 8 is released the new value is stored HOW TO CHANGE a parameter value B The setup menu is accessed by pressing button E 0 for 5 seconds m With button e or fa select the parameter to be modified B Press button E to display the value m Bykeeping button 1 pressed use button fe or a to set the desired value B When button E is released the newly programmed value is stored and the following parameter is displayed B To exit from the setup press button X or wait for 30 seconds LIST OF PARAMETERS Here is a list of the parameters the value of which can be changed in the programming mode as well as their ranges Displa Facto Symbol Parameter Range Setti
17. u sell or give away your Master Bilt cabinet you must make sure that all safety labels and the Installation Service Manual are included with it If you need replacement labels or manuals Master Bilt will provide them free Contact the customer service department at Master Bilt at 800 684 8988 The customer service department at Master Bilt should be contacted at the time of sale or disposal of your cabinet so records may be kept of its new location 15 MB MASTER BILT Refnipernian Sudan FRONT LIP HEATER gt BUE EEF P LIGHT SWITCH DRAIN TROUGH DEFR BK BK HEATER j G BL E S SALLA NORMALLY Y DETAIL and D off with 16 BMASTER BIT Renerion Sour FRONT GL FRONT LIP HEATER lt NZ LIGHT SWITCH BK DRAIN TROUCH DEFROST HEATER YELLOW I n Y 2 Y sa PR W PR BR W Ir E PR REAR DECK HEATER ja BK W E E ETS RAIN LINE HEATER
18. y the Master Bilt GEL series should be defrosted weekly for an extended period at least twelve hours To achieve this defrost the cabinet should have a manual defrost first Press and hold the button labeled MAN DEF for ten seconds on the control See the section of this manual labeled ELECTRONIC REFRIGERATION CONTROL After the cabinet starts a defrost cycle wait about 15 minutes then disconnect the power supply to the cabinet and let the cabinet stand for this prolonged period This will ensure that all ice has been defrosted and drained from the evaporator and storage area MECHANICAL Remove front and rear grille and check refrigeration lines to see that they are free not touching each other or compressor Spin condenser fan blade to see that it is free Check that all service valves 2 are open The springs are secured for shipping by either tightening bolts Loosen the hold down bolts so that the compressor floats freely Check all refrigeration lines and electrical conduit for rubbing or chaffing paying particular attention to area where lines enter the cabinet Remove cabinet from crate base and slide into location Cabinet must be level from side to side and front to back for correct draining of coil pan and for self closing doors to operate correctly 7 MB MASTER BILT Retnigenniion Sours ELECTRICAL A WARNING Before servicing electrical components in the case or the doors or door frames make sure all power to ca
19. you ignore the message you may damage your cabinet The warning and safety labels shown throughout this manual are placed on your Master Bilt Products cabinet at the factory Follow all warning label instructions If any warning or safety labels become lost or damaged call your customer service department at 800 684 8988 for replacements Ah DANGER High Voltage Turn power off CAUTION before servicing May have more than one disconnect GROUND REQUIRED 0 dis FOR SAFE OPERATION This label is located on top of the electrical control This label is attached to the cabinet power cord label and on the wiring channel on models with a power cord 4 MB MASTER BILT Betngenntian kruim PRE INSTALLATION INSTRUCTIONS INSPECTION FOR SHIPPING DAMAGE You are responsible for filing all freight claims with the delivering truck line Inspect all cartons and crates for damage as soon as they arrive If damage is noted to shipping crates or cartons or if a shortage is found note this on the bill of lading all copies prior to signing If damage is discovered when the cabinet is uncrated immediately call the delivering truck line and follow up the call with a written report indicating concealed damage to your shipment Ask for an immediate inspection of your concealed damage item Crating material must be retained to show the inspector from the truck line
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