Service Manual - Prep Tops
Contents
1. REFRIGERATOR PREP TOP Service Manual PT 142H PT 162H PT182H PT212H PT128H PT148H PT168T PT188H PT218H PREP TOP CONTENTS Dimensions 2 2 0 Introduction 2 1 Machine Description 2 2 Operating Instructions 2 3 Basic User Functions 2 4 Setting the Temperature 2 5 Defrosting and Routine Maintenance 3 0 Controller Adjustments 3 1 Parameter Access 3 2 Parameter Settings 4 0 Trouble Shooting 5 0 Glass Fitting Instructions 6 0 Access to the Refrigeration Compartment Y O FP FP C OOOO 7 0 Wiring Diagram 1 0 Dimensions F Dimensions ER Prize 1000 Interior PT 142 148 Exterior BUM 1400mm Dimensions PT 162 168 1158mm Dimensions PT 162 168 1600mm pris2 188 Prise _ 2 0 21 2 2 2 3 2 4 2 5 Introduction Machine Description The prep top range consist of a horizontal refrigerating show case for the storage of foodstuffs divided into three basic areas Condensing Unit Situated to the right hand side of the machine complete with compressor condenser condenser fan motor and the refrigeration controls incorporated in the cover Evaporator Situated inside the foam insulation Storage Area Refrigerated well in which pans are placed for the storage of food products Operating Instructions The controls are grouped together in the cover of the condensing unit 0 15 C hs On off switch2. Defrost End Temperature ROA a 1 dt dP d5 Delay Defrost After Switch On d d dC __ do A 30 7j de NoDipayDuigDetos 0 di Dripping Time Mme 0 d8 Delay After Defrost 0 da E NN Compressor Delays Defrost Probe Reading When Defost Probe is Fited _ Time Selection O hours 1 minutes Flag o Alarms and Fans delta __ TA 1 AL High Temperature Alarm Ad TemperatureAlarmDelay Minutes 120 A7 External Alarm Delay Other Selections HO Serial Address Z2 4 1 Hi AlarmRelayMode 0 AlanmON Relay Energised Flag 0 H2 Buzzer Disabled or Enabled 1 Enabled 0 Disabled Flag 0 eese O programming key T External parameter programming 3 0 Trouble Shooting The causes of malfunctions are often due to problems that can be easily resolved Check the following points according to the problem encountered and carry out the corresponding operation Sympton Possible Cause Unit switched Off and On using The machine starts again in 3 Check plug sockets fuses and power Ventilate the room or move any heat sources away from the The Compressor runs machine continuously but does not cool sufficiently Check electrical connections replace if faulty Refrigeration compartment iced up compressor running contiuously Check that the machine does
3. When the appliance is switched on the green indicator illuminates Defrost indicator Set point decrease Compressor operation indicator Set point increase Digital temperature indicator Check set point Programming key not accessible to the user ON Basic User Functions Setting the temperature Press button 5 to display the set point Whilst the temperature is displayed press button 2 to decrease the set point or button 3 to increase the set point The set point can only be set between the preset parameters of 15 C maximum and 0 C minimum Defrosting and Routine Maintenance The internal compartment must be defrosted and cleaned periodically as per the following instructions Switch the machine Off and remove the pans from the machine Disconnect the machine from the mains supply Allow all traces of ice to melt in the refrigerated well Remove any traces of food and other deposits using a plastic spatula Never use wire wool or scouring powder on any surface Wipe the interior using a warm damp soapy cloth followed by a clean damp cloth Dry the well using a soft cloth Clean the stainless exterior with a proprietary stainless steel cleaner following the manufacturers instructions Connect the machine to the mains supply and switch the machine On 3 3 0 Parameter Adjustments 3 1 Parameter Access 1 Press E button for 5 seconds 2 PS will be displayed 3 Press Da bu
4. not come into contact with any other Noisy in operation Noise coming from unit compart Fan blade catching on condenser ment or pipework E1 Displayed Temperature sensor faulty Replace faulty sensor 4 0 Glass fitting instructions 1 Screw the slotted glass supports to the top edge of the machine Slot the side and rear glass into the supports 2 Connect the side glass to the rear glass using the two hole brackets supplied 3 Place the top glass onto the side and rear glass and secure into place using the three hole brackets supplied 5 0 Access to the Refrigeration Compartment 1 Remove the small plastic side covers from the control panel to gain access to the fixing screws Unscrew the screws and remove the control panel from the machine 2 Locate the fixing screw through the square hole in the top panel and unscrew it sufficiently to release the tension but do not remove 3 Slide the top forward to disengage it from the screw and the rear retainer 4 Remove the two screws on the right side of the unit compartment to gain access to the condensing unit 6 0 Wiring Diagram On Off Switch 5 SL TE REFRIGERATOR A division of ITW Ltd Foster Refrigerator Oldmedow Road Kings Lynn Norfolk PE 30 4JU PT SM 02 2003
5. tton 00 blinking will be displayed 4 Press Eg button until the number 22 password is displayed 5 Press button to confirm The display changes to display the first modifiable code 6 Press ab simultaneously to show the parameter code to be changed 7 Press button to display the selected parameter value 8 Press gp E increase the value or press to decrease the value 9 Press I to confirm the value temporarily 10 Repeat the procedure from number 6 onwards for modification of other parameters 11 Press button once more to confirm the new values and to exit the modification procedure If no buttons are pressed for 60 seconds the controller will revert back to normal operation with none of the changes being saved 2 2 Parameter Settings Title Parameter Description Range Unit of Setting Measure Password robe Parameters Calibration of Air Probe X 0 1 C F 2 Reading Stability D 4 Display Probe 0 Air Probe 1 Food Probe o 0 5 0 C 1 F Flag 0 emperature Parameters rd AirProbe Differential ri Minimum Set Point Cc r2 MaxmumSetPoint 8 Alarm Enabling During Defrost O no t yes Flag 0 r4 Automatic variation of set point with _ 4 curtain switch closed NO i Compressor Parameters Defrost Type 0 Electric 1 Hot Gas 2 Timed Off Cycle A
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