Maxx Cold MXM2-48RS Use and Care Manual
Contents
1. display target set point in programming mode it selects a parameter or confirms operation DEF start a manual defrost up see the last temperature alarm in programming mode it browses the parameter codes increases the display value sw DOWN To see the last temperature alarm in programming mode it browses the parameter codes or decreases the display value KEY COMBINATION w Tolock amp unlock the keyboard SET To enter programming mode SET retum to the room temperature display Service and Installation Manual 1 2 Function of LEDS FUNCTION Compressor enabled Programming Phase flashing with Anti short delay enabled Defrost enabled Programming Phase flashing with Drip time in progress Fans enabled Fans delay after defrost progress An temperature alarm happened MAIN FUNCTIONS 2 1 HOW TO SEE THE SETPOINT 1 Push and immediately release the SET key the display will show the set point value 2 Push and immediately release the SET key or wait for 5 seconds to display the sensor value again 2 2 HOW TO CHANGE THE SETPOINT 1 Push the SET key for more than 2 seconds to change the set point value EN 2 The value of the set point will be displayed and LED starts blinking 3 change the set value push the W key within 10 seconds 4 To memory the new set point value and push theSET ke2. 540 5 15P Service and Installation Manual INS Location Units represented in this manual are intended for indoor use only Be sure the location chosen has a floor strong enough to support the total weight of the cabinet and contents A fully loaded unit can weigh as much as 1500 pounds Reinforce the floor as necessary to provide for maximum loading For the most efficient refrigeration be sure to provide good air circulation inside and out ION Inside cabinet Do not pack refrigerator so full that air cannot circulate The refrigerated air is discharged at the top rear of the unit It is important to allow for proper air flow from the top rear to the bottom of the unit Obstructions to this air flow can cause evaporator coil freeze ups and loss of temperature or overflow of water from the evaporator drain pan The shelves have a rear turn up on them to prevent this However bags and other items can still be located to the far rear of the cabinet Air is brought into the evaporator coil with fans mounted to the front of the coil Prevent obstruction by locating large boxes and tall stacks of product to the bottom of the cabinet Outside cabinet Be sure that theunit has access to ample air Avoidhot corners and locations near stoves and ovens It is recommended that the unit beinstalled no closer than 6 from any wall with at least 12 ofclear space above the unit Should it become necessary to lay the unit on its side or b
3. MAXX COLD SERVICE INSTALLATION AND INSTRUCTION MANUAL Glass Door Merchandiser Refrigerator and Freezer Service and Installation Manual CONTEN RECEIVING amp INSPECTING EQUIPMENT SPECIFICATIONS INSTALLATION OPERATION MAINTENANCE All rights reserved Reproduction without written permission is prohibited ISERIAL NUMBER INFORMATION The serial number of all self contained refrigerators and freezers is located inside the unit on the left hand side near the top on the wall Always have the serial number of your unit available when calling for parts or service This manual covers standard units only If you have a custom unit consult the customer service department at the number listed in the back cover RECEIVING AND INSPECTING THE EQUIPMENT Even though most equipment is shipped in protected packaging care should betaken during unloading so the equipment is not damaged while being moved into the building Visually inspect the exterior of the package and skid or container Any damage should be noted and reported to the delivering carrier immediately lf damaged open and inspect the contents with the carrier In the event that the exterior is not damaged yet upon opening there is concealed damage to the equipment notify the carrier Notification should be made verbally as well in written form 4 Request an inspection by the shipping company of thedamaged equipmen
4. ack for any reason allow at least 24 hours before start up so as to allow compressor oil to flow back to the sump Failure to meet this requirement can cause compressor failure and unit damage Leveling A level cabinet looks better and will perform better because the doors will line up with the frames properly the cabinet will not be subject to undue strain and the contents of the cabinet will not move around on the shelves Use a level to make sure the unit is level from front to back and side to side Because the unit is supplied with casters no adjustments are available Ensure the floor where the unit is to be located is level Stabilizing Models are supplied on casters for your convenience ease of cleaning underneath and for mobility Itis very important however that the cabinet be installed in a stable condition with the front wheels locked while in use Standard warranties will be voided due toimproper installation procedures NOTE Electrical connection Refer to the amperage data on page 3 the serial tag your local code or the National Electrical Code to be sure the unit is connected to the proper power source A protected circuit of the correct voltage and amperage must be run for connection of the line cord or permanent connection to the unit The ON OFF switch must be turnedto OFF and the unit disconnected from the power source whenever performing service maintenancefunctions or amar Cleaning the refrigerated area Servic
5. asket Gasket cleaning can be done with the use of warm soapy water Avoid full strength cleaning products on gaskets as this can cause them to become brittle and prevent proper seals Also never use sharp tools or knives to scrape or clean the gasket which could possibly tear the gasket and rip the bellows Gaskets can easily be replaced and donot require the use of tools or authorized service persons The gaskets are Dart style and can be pulled out of the grove in the door and new gaskets can be pressed back into place Doors Hinges Over time and with heavy use doors the hinges may become loose it is noticed that the door is beginning to sag it may become necessary to tighten the screws that mount the hinge brackets to the frame of the unit If the doors are loose or sagging this can cause the hinge to pull out of the frame which may damage both the doors and the door hinges In some cases this can require qualified service agents or maintenance personnel Drain Maintenance Each unit has a drain located inside the unit which removes the condensation from the evaporator coil and evaporates it at an external condensate evaporator pan Each drain can become loose or disconnected from moving or bumping the drain If you notice excessive water accumulation on the inside of the unit be sure the drain tube is connected from the evaporator housing to the condensate evaporator drain pan If water is collected underneath the unit you may want to c
6. be turned to OFF and the unit disconnected from the power source whenever performing service maintenance functions or cleaning the refrigerated area Refrigerators and Freezers The interior and exterior can be cleaned using soap and warm water If this isn t sufficient try ammonia and water or a nonabrasive liquid cleaner When cleaning the exterior always rub with the grain of the stainless steel to avoid marring the finish Do not use an abrasive cleaner because it will scratch the stainless steel and plastic and can damage the breaker strips and gaskets Cleaning the Condenser Coil The condenser coil requires regular cleaning at least every 90 days In some instances you may find that there is a large amount of debris and dust or grease accumulated prior to the 90 day time frame In these cases the condenser coil should be cleaned every 30 days If the build up on the coil consists of only light dust and debris the condenser coil can be cleaned with a simple brush heavier dust build up may require a vacuum or even compressed to blow through the condenser If heavy grease is present there are de greasing agents available for refrigeration use and specifically for the condenser coils The condenser coil may require a spray with the de greasing agent and then blown through with compressed air Failure to maintain clean condenser coil can initially cause high temperatures and excessive run times continuous operatio
7. e and Installation Manual OPERATION Do not throw items into the storage area Failure to heed these recommendations could result in damage to the interior of the cabinet CAUTION Refrigeration cycle Refrigerators Every 6 hours the unit will shut off to allow the evaporator coil to defrost and the controller will display the defrost symbol When the coil temperature reaches 41 F or after 20 minutes the unit returns to the refrigeration cycle The factory setting for temperature range is 28 to 34 F Freezers During the refrigeration cycle the controller supplies power to the condensing unit and evaporator fan motors The evaporator fans will run at any time when the evaporator coil temperature is below 35 F andthey will cycle off during defrost period Every 6 hours the unit will shut off and the defrost heater will defrost the evaporator coil and the controller will display the defrost symbol When the coil temperature reaches 45 F or after 20 minutes the unit returns to the refrigeration cycle 1 Anti Condensation heaters on the door frames work in conjunction with the compressor 2 The factory setting for temperature range is 7 F to 3 F On Off Switch An on off switch is located on the front of the bottom shroud When the unit is on the switch will glow green Light Switch A light switch is located next to on off switch on the front of the bottom shroud SOLID STATE THERMOSTAT DESCRIPTIONS 1 1 KEY FUNCTION SET
8. el Remove the bottom shroud Loosen and remove the top screws slide the shroud up and out Light Bulb Replacement 1 Upper light bulb replacement Loosen the screws in the bottom of top shroud swing the top shroud up until it is held by the top of the cabinet now the light bulb can be replaced 2 LED light bulb replacement Take the cover off then the LED bulb can be replaced Service and Installation Manual www maxximumfoodservi 3355 Enterprise Avenue Suit Fort Lauderdale FL 33331 Phone 877 Fax 954 202 7337 0512 Ver A 10
9. heck the condensate evaporator drain tube to be sure it is still located inside the drain pan The leveling of the unit is important as the units are designed to drain properly when on a level surface if your floor is not level this can also cause drain problems Be sure all drain lines are free of obstructions typically food product is found blocking drain lines causing water to back up and overflow the drain pans Service and Installation Manual MAINTENANCE Swing Door Replacement and Adjustment 1 Open the bottom shroud and hold the door then loosen the bottom hinge s screws and take off the old door 2 Prepare new door insert top pin into top hinge get one bottom hinge to hold the door by the bottom pin then fasten bottom hinge securely to the door frame with three screws 3 Allow the door to freely swing make sure it swings closed by itself with no restriction 4 Plug the unit in and make sure the lock works well 5 If not adjust the door height by adding the plastic spacer washer provided to the bottom hinge pin Sliding Door Replacement and Adjustment 1 Take off the hook of counterweight of door from top of the door 2 Hold the door up untilit s bottom edge is over the bottom channel move the door out across the channel and lay the door down 3 Prepare new door hold the door insert into top channel until bottom edge is over the bottom channel move bottom of door across the channel wall and set it down in to the chann
10. n with dirty or clogged condenser coils can result in compressor failures Neglecting the condenser coil cleaning procedures will void any warranties associated with the compressor or cost to replace the compressor A Never use a high pressure water wash for this cleaning procedure as water can damage the electrical components located near or at the condenser coil DANGER In order to maintain proper refrigeration performance the condenser fins must be cleaned of dust dirt and grease regularly It is recommended that this be done at least every three months If conditions are such that the condenser is totally blocked in three months the frequency of cleaning should be increased Clean the condenser with a vacuum cleaner or stiff brush if extremely dirty a commercially available condenser cleaner may be required Stainless Steel Care and Cleaning To prevent discoloration of rust on stainless steel several important steps need to be taken First it is important to understand the properties of stainless steel Stainless steel contains 70 80 iron which will rust It also contains 12 30 chromium which forms an invisible passive film over the steel s surface which acts as a shield against corrosion As long as the protective layer is intact the metal is still stainless If the film is broken or contaminated outside elements can begin to breakdown the steel and begin to form rust of discoloration Proper cleaning of stainless steel requires s
11. oft cloths or plastic scouring pads NEVER USE STEEL PADS WIRE BRUSHES OR SCRAPERS DANGER Service and Installation Manual MAINTENANCE Cleaning solutions need to be alkaline based or non chloride cleaners Any cleaner containing chlorides will damage the protective film of the stainless steel Chlorides are also commonly found in hard water salts and household and industrial cleaners If cleaners containing chlorides are used be sure to rinse repeatedly and dry thoroughly upon completion Routine cleaning of stainless steel can be done with soap and water Extreme stains or grease should be cleaned with a non abrasive cleaner and plastic scrub pad It is always good to rub with the grain of the steel There are also stainless steel cleaners available which can restore and preserve the finish of the steels protective layer Early signs of stainless steel breakdown can consist of small pits and cracks If this has begun clean thoroughly and start to apply stainless steel cleaners in attempt to restore the passivity of the steel acidic content which can deteriorate the finish Be sure to clean the stainless steel surfaces of ALL food products Common items include tomatoes other vegetables Never use acid based cleaning solution Many food products have Gasket Maintenance Gaskets require regular cleaning to prevent mold and mildew build up and also to keep the elasticity of the g
12. t This should be done within 10days from receipt of the equipment Be certain to check the compressor compartmenthousing and visually inspect the refrigeration package Be sure lines are secure and base is still intact Freight carriers can supply the necessary damage formsupon request Retain all crating material until an inspection has beenmade or waived en Service and Installation Manual SPECIFICATIO SWING GLASS DOOR REFRIGERATORS STORAGE SHIP CAPACITY CHARGE WEIGHT NEMA MODEL V Hz Ph AMPS Cu ft_ HP 02 LBS PLUG MXM1 12R_ 115 601 6 12 38 120 254 5 15P 1 168 115 601 6 16 38 120 282 5 15P 1 238 115601 6 23 38 120 331 5 15 2 48 _ 115 601 7 48 12 187 540 5 15P 3 728 115 60 10 72 34 212 741 5 SWING GLASS DOOR FREEZERS STORAGE SHIP CAPACITY CHARGE WEIGHT MODEL V Hz Ph AMPS HP oz 185 1 12 115 601 11 12 38 106 258 5 15 MXM1 16F_ 115 601 11 16 58 11 3 289 5 15P 1 23 115601 11 23 58 141 353 5 15 2 48 115 601 12 48 1 25 0 567 _ 5 15 72 115 601 16 72 1 14 289 829 5 20P SLIDING GLASS DOOR REFRIGERATOR STORAGE SHIP CAPACITY CHARGE WEIGHT MODEL V Hz Ph AMPS 02 1885 MXM2 48RS_ 115 601 7 48 12 187
13. y again or wait 10seconds 2 3 HOW TO START A MANUAL DEFROST Push the key for more than 2 seconds and a manual defrost will start 2 4 HOW LOCK THE KEYBOARD 1 Keep pressed the and W keys for more than 3seconds 2 The POF message will be displayed and the keyboard will be locked At this point it will be possible only to see the set point or the MAX or Min temperature stored 3 If a key is pressed more than the POF message will be displayed 2 5 HOW TO UNLOCK THE KEYBOARD Keep pressed the and W keys together for more than 3seconds until the Pon message is displayed then press 4 W key to select the item to check or program 3 ALARM SIGNALS HOW TO SEE THE ALARM AND THE RECORDED ALARM Compressor output according to par 1 Push the W key and the Con and alarm signals will be displayed i Evaporator probe failure Defrost end is timed 2 When the signal is displayed hold Condenser probe failane Outputs unchanged the SET key until the rst message is displayed and push the SET key again the rst message start Outputs unchanged blinking and the normal temperature Compressor and fans restarts will be displayed again PEAY Output unchanged Serious extemal alarm 1F bAL All outputs OFF Condenser alarm All outputs OFF Service and Installation Manual MAINTENANCE The power switch must
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