PORTABLE REFRIGERATOR
Contents
1. AC input with fuse 3 15A DC input with fuse 15A 10 Cooling Bin Evaporator 11 Alternative lid handle position 12 Alternative lid latch position 13 Alternative lid hinge positions CO COND OP ONH Control Panel Automatic speed control with TURBO over ride Fault identifier light Run status light Power ON OFF and temperature UP control Temperature display Gen O RUN FAULT ID ha STATUS INDICATORS X ED TEMPERATURE A SPEED CONTROL THE FRIDGE AUTOMATICALLY SELECTS VARIOUS SPEEDS TO MAINTAIN THE BATTERY VOLTAGE 13 8 13 2 O RIO S REVERSE POLARITY UD DESIRED TEMPERATURE PRESS THE TURBO BUTTON TO OVER RIDE AUTOMATIC SPEED CONTROL BATTERY PROTECTION THE FRIDGE WILL AUTOMATICALLY CUT OUT AT 11 8 THE SELECTED BATTERY PROTECTION LEVEL PRESS TO SELECT Power ON OFF HOLD FOR 3 SECONDS SET mode and temperature DOWN control Battery protection control Battery manager control Reverse polarity indicator The refrigerator can be turned ON and OFF via the control panel Press and hold the A button for 3 seconds to turn the fridge ON or OFF If power to the refrigerator is interrupted it will default to ON automatically Note When the fridge is switched off the interior light will still function if the unit is connected to a power source National Luna refrigerators have an adva2. While most car cigarette lighter sockets appear to be adequate in practise a large voltage drop occurs between the socket and the car battery This may result in the fridge shutting down as a result of a low voltage condition It is recommended the following table be used as a guide to establish what cable thickness is to be used depending on the distance from the car battery to the fridge As a rule of thumb one should use a 1 0 mm2 multi strand copper wire per meter of distance from the battery Cable Size Max Length between battery amp fridge Cross Section 12 Volt Operation 24 Volt Operation mm2 Meters Meters 4 4 Note Two wires positive and negative must be connected from the battery to the fridge plug point 0 Dynamics of Temperature Settings Danfoss BD35F compressor The compressor is controlled by the digital thermostat setting The Danfoss BD35F compressor is used on all of the National Luna fridge freezer product range Developed in Germany it has a unigue Multi Speed 2 000 3 500 rpm capability which makes it ideal for use in all mobile applications up to an angle of 35 degrees It can function efficiently in ex treme conditions where it is not uncommon to have ambient temperatures above 40 C Inner Bin Cooling Compartment To control temperature the thermostat sensor must be placed in a position in order to take a tempera ture reading For practical purposes National Luna has elected to place this te
3. saka a E iy ied aah i d b i 6 6 8 i 1 38 8 2 2 3 38 5 2 3 3 3 a AAA ii AS PORTABLE REFRIGERATOR T Mai THE NATIONAL LUNA RANGE OF PRODUCTS HAVE BEEN DESIGNED AND MANUFACTURED IN SOUTH AFRICA SINCE 1989 EVERY PRODUCT SOLD IS OF THE HIGHEST POSSIBLE QUALITY MANUFACTURED WITH WORLD CLASS TECHNOLOGY MARKETED amp SERVICED BY A KNOWLEDGEABLE amp DEDICATED TEAM LOCALLY amp INTERNATIONALLY This manual handbook is a combined publication for models manufactured from 2009 Identify your model and follow the relevant colour coded pages for best use National Luna Portable Refrigeration Models National Luna Classic Range 40 65 80 125 Litre Double Door 74 95 Litre Twin Compartment 90 Litre Weekender 50 Litre Twin Weekender 52 Litre Relevant information common to all models Please complete the tear out return card to register your warranty National Luna fridges have been tested to international safety specifications SANS 60335 2 24 2003 IEC 60335 2 24 2002 SANS 60335 1 2007 IEC 60335 1 2006 9 Page Index Introduction Installation Guidelines Connecting Power Wiring Guidelines Temperature Settings Celsius Fahrenheit Conversion Chart Speed Control Battery Protection National Luna Classic Range National Luna Double Door and Twin Range National Luna Weekender Range Troubleshooting National L
4. Voltage of a battery can be an indication of its state of charge The voltage capacity relationship is most accurate when the fridge is not running and the battery temperature is at 25 C By measuring the voltage we can estimate the amount of energy remaining in the battery Changes in temperature battery age and general battery health can influence this relationship and therefore result in inaccurate Capacity measurement Normal battery operation takes place between 12 0 and 12 6 volts Depending on the manufacturer s specifications a normal car s alternator charges between 13 7 and 14 2 volts A battery should not be discharged below 11 8 volts as a general rule A deep discharged battery should be recharged as soon as possible to prevent permanent damage 11 4 BATTERY VOLTAGE 100 75 50 40 25 10 BATTERY CAPACITY Danfoss Low Voltage Battery Protection The Danfoss electronic control unit will cut out at the low medium high selected setting Once the compressor has cut out it will not restart cut in until the voltage rises The table below reflects the set points Note these values are measured at the Danfoss control unit input It is important Cut out Cut in to note that poor thin wiring and bad con nections to the battery can cause a large voltage drop When this occurs the fridge switches off and will re start again on a repeat cycle hunting NOTE
5. When connecting the fridge for the first time it will look at the cut in voltage If the battery protection is set on High the initial cut in voltage will be 12 5 If the battery is not fully charged the fridge will not start Simply select low to start When selecting Low the fridge will operate within a voltage supply of 9 6 31 5volts When using the unit in a 24 volt application do not select battery protection LOW as this will completely drain the battery bank Causing permanent damage to the batteries 12 VOT Battery Protection Settings The refrigerator is eguipped with a multi level BATTERY PROTECTION battery protection circuit THE SELECTED BATTERY PROTECTION LEVEL The user has the choice of three voltage levels HIGH at which the compressor will shut down to protect against excessive battery discharge MED 10 5v 5 See page 10 To change the protection level press and hold Low O asv the button until the preferred level is reached LOW WILL ALLOW THE BATTERY TO BE COMPLETELY DRAINED When powered by an AC source the battery protection level can be changed but will only affect operation when the DC source is used Selecting the Low cut out setting can cause excessive discharge resulting in damage to the battery Indicator Lights Status indicators will identify the current operation of the refrigerator RUN This indicator will be illuminated whenever the fridge co
6. 24 C The FRIDGE bin has a temperature range between 20 C and 12 C It is important that the freezer thermostat should be set at the same or colder temperature than the fridge thermostat This will ensure temperatures are accurately maintained and the refrigerator operates efficiently To select the cooling temperature press and hold the FF button until the display starts to flash Press A or ey to raise or lower the desired temperature The thermostat will accept the new setting and exit the setting mode 10 seconds after the last button was pressed The same procedure is used on both thermostat controls NOTE You can only set one thermostat at a time The dual control will first operate to cool the R H fridge bin before switching to the L H freezer bin The setting of the L H bin as a fridge and the R H bin as a freezer is not an option The reason for this is that in order to achieve maximum efficiency i e the lowest average battery power consumption the gas flows within the unit are intentionally biased to flow from the R H bin to the L H bin Thus the freezing gas could flow from the R H bin and freeze the contents of the L H bin asean Rage Fides Freezer 6 Feer 1 8 18 18 Weekender 50 Lt TWIN Weekender 52 Lt SINGLE Introduction The National Luna Weekender is a high performance low power portable refrigerator designed primarily for use in mobile applications By reducing the insulatio
7. hinges on the side of the refrigerator Align the lid and ensure that it closes fully before tightening the screws Keep the spare hinge and screws in a safe place A special feature of the Weekender is the ability to change the direction in which the lid opens The most common configuration is the front opening direction shown If the application prevents the lid from opening fully or the refrigerator is installed long ways into a vehicle is may be advantageous to use the side opening configuration The Weekender is supplied in the front opening configuration In order to change the lid direction follow these steps k 6 The Weekender will now be in the side opening configuration NOTE Take care not to apply excessive pressure when locating the screws to the inside retaining nuts They can be pushed too far back or incorrectly angled Three hinge cover plates are supplied 2 fitted with the Weekender for covering the unused hinge holes Tip The optional Weekender protection jacket has a side pocket which is ideal for keeping the spare hinge and latch parts Troubleshooting In the event of unusual or undesired operation consult the table below before contacting a service agent Baal ht The fridge will not run 12 Volt polarity reversed Check polarity to battery is correct when connected to 12V The battery is discharged Recharge the bat
8. ATURE SPEED CONTROL THE FRIDGE AUTOMATICALLY SELECTS VARIOUS SPEEDS TO MAINTAIN THE DESIRED TEMPERATURE Control Panel BATTERY PROTECTION THE FRIDGE WILL AUTOMATICALLY CUT OUT AT THE SELECTED BATTERY PROTECTION LEVEL HIGH 0 11 5V MED 0 10 5V LOW O 95 LOW WILL ALLOW THE BATTERY TO BE COMPLETELY DRAINED SET MODE PRESS DOWN FOR 3 SECONDS FREEZER TEMPERATURE On Off control ED TEMPERATURE Power ON OFF HOLD FOR 3 SECONDS SET MODE PRESS DOWN FOR 3 SECONDS Battery Protection BATTERY PROTECTION THE FRIDGE WILL AUTOMATICALLY CUT OUT AT THE SELECTED BATTERY PROTECTION LEVEL HIGH O 11 5V MED O 10 5V LOW O 9 5V LOW WILL ALLOW THE BATTERY TO BE COMPLETELY DRAINED Speed Control SPEED CONTROL THE FRIDGE AUTOMATICALLY SELECTS VARIOUS Hn TO MAINTAIN THE DESIRED TEMPERATUR PRESS THE TURBO BUTTON TO OVER RIDE AUTOMATIC SPEED CONTROL MAXIMUM POWER WILL BE USED IN TURBO MODE Setting the Temperature 4 NB Set one thermostat at a time O RUN Power ON OFF HOLD FOR 3 SEC SET MODE PRESS DOWN FOR 3 SECONDS 2 FRIDGE TEMPERATURE O RUN A SET MODE PRESS DOWN FOR 3 SECONDS y FREEZER TEMPERATURE 74Lt 90Lt 95Lt Refrigerators have dual thermostats allowing individual temperatures to be selected for each of the cooling bins The FREEZER bin has a temperature range between 20 C and
9. BO function can increase power consumption 14 Double Door 74 95 Litre Twin Compartment 90 Litre Introduction The Double door and Twin fridges in this range have only one compressor but due to National Luna s unigue Dual Control technology the fridge and freezer compartments can be Lid Interior light x 2 24V 5W Lid locking latches Cabinet exterior Control panel Carry handles Compressor area AC input with fuse 3 15A DC input with fuse 15A L H Cooling Bin Freezer R H Cooling Bin Fridge set independently This is like having two fridges in one The Double Door range has two lids one for each compartment Double Door Range 74 95 L CO COND OP ONH X a 90 Litre Twin The Twin has one lid covering both compartments The freezer compartment has a separate internal lid This prevents cold air escaping from the freezer when the main lid is opened adding to the efficiency and ensuring stable temperatures within 1 Lid D 2 Interior light 24V 5W 12 3 Lid locking latches 4 Cabinet exterior 5 Control panel 6 Carry handles 4 7 Compressor area 8 AC input with fuse 3 15A 5 9 DC input with fuse 15A 10 L H Cooling Bin Freezer 11 R H Cooling Bin Fridge Battery protection control Automatic speed control with TURBO over ride Fault identifier light Individ
10. It s recommended to re charge a battery that has been discharged to this level as soon as possible REVERSE POLARITY BATTERY PROTECTION THE FRIDGE WILL AUTOMATICALLY 11 54 J CUT OUT AT THE SELECTED ON BATTERY PROTECTION LEVEL O 11 0 eee 0 10 5K J O 10 0 LOW LOW WILL ALLOW THE BATTERY Soo TO BE COMPLETELY DRAINED Combined with the battery monitor is a 3 stage battery protection cut out This feature is used to prevent the battery from being excessively discharged The user has the choice of 3 protection levels These are linked to the voltages indicated on the battery monitor and indicate at which voltage the fridge will cut out Press and hold the button until the desired level is obtained The MED and LOW settings allow a deep discharge of the battery However due to possible wiring loss in the application vehicle the voltage detected by the Weekender may be lower than the actual battery voltage See page 6 For an accurate voltage reading the fridge should not be running oS Dual direction Lid Close the lid Remove both front latches and lid handles Re fit one of the latches and lid handles to the alternative latch positions on the side of the refrigerator Keep the spare parts safe Remove all three hinges from the rear of the refrigerator Also remove the hinge cover plates from the alternative hinge locations Re fit two of the
11. It will now remember the new set temperature The temperature display will reflect the inner bin temperature prior to the new setting Provided the new setting is colder the compressor will then switch on and cool the fridge further to the set point During this time the run indicator light will be displayed The user must take into account that the unit has thinner insulation than the classic range At very high ambient temperatures it is not recommended to set the freezer to below 11 C as the compressor will automatically speed up to the high power mode in order to attain colder temperatures and thereby use excessive battery power Battery Monitor and Protection The Weekender is equipped with a battery monitor and low battery cut out protection circuit The monitor is intended to give an estimate of the available remaining energy in a 12 volt lead acid battery For 24V systems the indicated battery voltage should be multiplied by two The battery monitor has a built in low voltage alarm which provides audible warning of a low battery condition To activate the alarm press and hold the button until the ALARM ON indicator is illuminated In the event of incorrect polarity the reverse polarity indicator will be on and the fridge will not operate until the wiring is correctly connected BATTERY VOLTAGE The Low battery warning will sound when the voltage measured by the Weekender is below 10 5 volts
12. The previous set temperature will be displayed Press A or ey to raise or lower the desired temperature The thermostat will accept the new setting and exit the setting mode 10 seconds after the last button was pressed It will now remember the new set temperature The temperature display will reflect the inner bin temperature prior to the new setting Provided the new setting is colder the compressor will then switch on and cool the fridge further to the set point During this time the run indicator light will be displayed Temperature Guidelines The following table is a guideline to setting the correct temperature range for different foodstuffs Recommended choice of temperatures Fresh fruits amp vegetables Dairy products 3 C to 6 C Smoked prepared meats Cold beverages 0 C to 4 C Short term frozen meats 6 C to 11 C Frozen meats and fish Ice cream frozen desserts 18 Introduction to Smart Compressor Control National Luna developed a Smart Compressor Control advanced automatic speed control function which has been fitted as standard to all current models e Logic 1 Setting the bin temperature in a range of 20 to 11 C The compressor will operate at 3 speeds low 2 000 rom medium 2 750 rpm and high 3 500 rpm On initial start up the fridge will automatically run at full speed to bring the inner bin temperature down as fast as possible It will then step down to medium speed to reach the
13. additional 2 year warranty to be provided by National Luna on the compressor 4 Removal of the serial number on the appliance will render this warranty void 5 National Luna may consider a warranty void if modifications have been made to this appli ance which may cause undesirable or hazardous operation or may be the cause of the malfunction of this product 6 National Luna shall not be responsible for any damages of any kind resulting from incorrect voltages or faults with regards to power supply which fall outside of the appliance operating specifications 7 National Luna shall not be responsible for damage to the appliance caused by negligent use storage of hazardous chemicals use of corrosive substances fire flood civil disturbances lightning or any other natural phenomenon 8 Warranty returns to the factory for repairs in the event where the unit has been shipped to the factory for repairs transport costs will be for the owners account 9 National Luna will not accept any responsibility for the consequential loss or damage caused by or due to the malfunctioning of this appliance 10 National Luna shall not be held responsible for any injuries to persons caused by the incor rect or negligent usage of this appliance 11 Repair work to be done in terms of this warranty must be referred to National Luna for written authorisation before any work is carried out 12 National Luna reserves the right to refuse repair or service un
14. der warranty if the Warranty registration card or original proof of purchase cannot be produced For tracking and warranty purposes please fill in the information below Dealer s name Stamp Serial No Model Date purchased Invoice No 27 www nationalluna com National Luna South Africa Tel 27 0 11 452 5438 Fax 27 0 11 452 5263 NL 13 5 2011 M R
15. h Fridge over loaded The internal temperature probe is faulty damaged or disconnected The Fault ID light is flashing twice every 4 seconds The Fault ID light is flashing 3 times every 4 seconds The Fault ID light is flashing 4 times every 4 seconds The Fault ID light is flashing 5 times every 4 seconds The thermostat display is showing P rf NATIONAL LUNA LIMITED WARRANTY SOUTH AFRICA This National Luna Warranty supersedes any other advertised Guarantee or Warranty provided with this appliance by any wholesaler or retailer National Luna warrants this product to be free from defects in materials and or workmanship under normal use and service to the original purchaser subject to the following 1 At any time within THREE YEARS from the date of purchase by the original purchaser National Luna will at its discretion replace or repair without cost to the owner and if through an authorised service agent any part found to be defective by National Luna Where parts are replaced by an authorised service agent the labour account for the work done will be for the owner s account 2 This warranty does not apply to light bulbs fuses cooling fans or items where the length of life depends on the amount of use and care given 3 The Danfoss BD35F compressor has a 1 year manufacturers guarantee Correct completion and submission of the Warranty registration card supplied with this booklet allows for an
16. ially where slides or drawers are used o Do not use a power lead that is damaged Do not connect the refrigerator to a power source that does not comply with the input power specifications Displayed on the fridge s rear panel When storing the fridge ensure that the lid is propped open to allow for aeration Disconnect the appliance from an electrical source Note When the fridge is switched off the interior light will still function if the unit is connected to a power source Installation guidelines When installing the refrigerator into a vehicle for the first time ensure that the electrical connections to the vehicle s battery are secure and the specified wiring is used See wiring guidelines on page 6 The fridge is supplied with a pre made cable for use with a 12 24 volt DC supply This cable is terminated with a high guality male plug for connection into your vehicle Male Plug Centre pin Female Socket 1 Install the supplied female 2 Use a suitable cable to connect the socket into your vehicle socket to the vehicle s battery in a convenient location A cable thickness of 4mm or greater 5 recommended When installing electrical outlets in your vehicle do not rely on the vehicle s body for an electrical earth Fitting an in line fuse Although the fridge has a built in fuse it is recommended to install an additional fuse on the positive wire as close to the battery as possib
17. le This will protect against short circuits that may occur along the length of the cable Ensure that all connections are properly crimped and insulated An automotive fuse with a rating of 15A is recommended If you choose to change the attached plug on the DC cable for a different type first ensure that the power has been disconnected before cutting it Split and strip the wires as required for the new plug Take care to ensure that the correct polarity is used on the plug and crimp the connections where possible JD Connecting power All National Luna Portable refrigerators can accept Fuse 15amp ya a DC voltage ranging from 9 6V to 31 5V as well as an AC voltage range from 85V to 265V Both power inputs are fuse protected 3 15A Time lag fuse for AC input 15A automotive blade fuse for DC input An AC and DC source can be connected to the refrigerator simultaneously Under these conditions the AC supply will be chosen as the primary power Fuse 3 15amp 5x20 Glass Fuse Source If the AC supply is interrupted the DC supply will be automatically selected and operation will continue normally After a 1 minute delay Suggested Wiring Specifications One of the most problematic issues with installing a 12 volt refrigeration system is incorrect wiring Most users do not understand the importance of maintaining battery voltage over the distance from the battery to the installed fridge
18. mory To select the new cooling temperature press and hold the ey button until the display starts to flash The previous set temperature will be displayed Press A or Se to raise or lower the desired temperature The thermostat will accept the new setting and exit the setting mode 10 seconds after the last button was pressed It will now remember the new set temperature The temperature display will reflect the inner bin temperature prior to the new setting Provided the new setting is colder the compressor will then switch on and cool the fridge further to the set point During this time the run indicator light will be displayed Temperature dynamics of this unique fridge freezer The 50 Litre Twin operates on a ratio of cooling capacity between the fridge and the freezer bin The thermostat control is placed on the fridge bin side and controls fridge temperature only The freezer has more cooling capability than the fridge compartment and will cool down to approximately 10 C colder than the fridge The thermostat may be set down as low as 12 C which will aid the cooling down of a large volume of warm goods which have been placed in the fridge Under this condition the compressor will run at high speed and possibly continuously if the ambient temperature is very high The freezer compartment could get extremely cold i e 25 C It is not ideal to run the fridge bin at low temperatures with the intention of running a d
19. mperature sensor on the metal surface forming the interior bin of the fridge freezer Thus the switching on and off of the compressor will be controlled by the bin surface area temperature The inner volume of the cooling bin i e core centre temperature will take time to pull down to equalise the bin temperature In practise it is common that the set temperature will be within 3 C of the core temperature Ambient temperatures surrounding the fridge must also be taken into consideration Very high outside temperatures will play a major role in the running time of the fridge e g The fridge will run longer to maintain or reach the target temperature set When setting temperatures below 12 C the refrigeration system will have a larger temperature range between switching on and off Setting the Temperature The digital thermostat fitted to the National Luna Portable refrigerator UI 42 allows accurate setting of the desired ON POSS cooling temperatures HOLD FOR 3 SECONDS ED With the single compartment refrigerators w temperatures can be selected between SET MODE PRESS DOWN FOR 3 SECONDS 20 C and 30 C in 1 C increments When powering up the fridge the first time the temperature inside the fridge will be reflected on the display NOTE the previously set temperature will be in memory To select the new cooling temperature press and hold the 3 button until the display starts to flash
20. mpressor is running and the compartment is being cooled FAULT ID This indicator is used to identify fault conditions that may occur with the refrigerator such as low power supply This indicator will flash a pre determined number of times every 4 seconds when a particular fault occurs see table below Also refer to page 26 of E Fault description Low voltage This is shown when the DC supply voltage is low The battery could be flat wiring losses are too high or there is a poor connection to the power source Fan over current cut out There is a problem with the ventilation fan It is possible that the ventilation fan is obstructed blocked or damaged Motor start error The compressor has not started successfully This can happen in extreme environments where the refrigerator is heavily loaded and temperature is very high Minimum speed error The motor cannot maintain a minimum speed of 1900 rpm This can be the result of an internal electronics failure Thermal cut out The electronic circuitry has over heated This happens in very hot environments This can occur when the fridge is over loaded with warm contents and the ambient temperature is high The electronics will re set when the temperature has dropped National Luna Classic Range 40 65 80 125 Litre Introduction Developed for performance at high ambient temperatures minimum power consumption and high operating efficiency these single compartment fridges a
21. n to 42mm thickness National Luna offers a lightweight fridge freezer to meet the demand for maximum fridge capacity where space is a problem Average Power consumption of these fridges would be slightly higher than the 60mm insulation range 50 Litre Twin The Weekender 50 Twin is split into a 40 litre fridge compartment and a 10 litre freezer compartment Under normal operating conditions the larger compartment is used as a fridge and the smaller compartment will attain sub zero temperatures The freezer bin of the Weekender 50 Twin has a separate internal lid This prevents cold air escaping from the freezer when the main lid is opened adding to the efficiency and ensuring stable temperatures within Weekender 50L Twin Lid Interior light 24V 10W Lid locking latches Cabinet exterior Control panel Carry handles Compressor area AC input with fuse 3 15A DC input with fuse 15A 10 Fridge Bin 40 Lt Evaporator 11 Freezer bin 10 Lt with inner lid 12 Alternative lid handle position 13 Alternative lid latch position 14 Alternative lid hinge positions CO COND OBR W 52 Litre Single Bin This model has been designed to operate as a fridge or freezer and the bin temperature can be set between 20 C and 30 C Weekender 52L Lid Interior light 24V 10W Lid locking latches Cabinet exterior Control panel Carry handles Compressor area
22. nced speed control which will vary the speed of the com pressor in order to conserve power and optimise performance For situations where maximum cooling power is required press and hold the Turbo button until the indicator 5 illuminated 8 This will bypass automatic control and force high speed operation Refer page 9 SET MODE PRESS DOWN FOR 3 SECONDS Y ALARM HIGH CUT OUT LEVEL on 11 0 O 0 0 MED 10 0 9 5 O LOW WILL ALLOW THE BATTERY 5 TO BE COMPLETELY DRAINED LOW On Off control ED TEMPERATURE Power ON OFF HOLD FOR 3 SECONDS SET MODE PRESS DOWN FOR 3 SECONDS y Speed Control SPEED CONTROL THE FRIDGE AUTOMATICALLY SELECTS VARIOUS SPEEDS TO MAINTAIN THE DESIRED TEMPERATURE PRESS THE TURBO BUTTON TO OVER RIDE AUTOMATIC SPEED CONTROL MAXIMUM POWER WILL BE USED IN TURBO MODE Using the TURBO function can increase power consumption Setting the Temperature 50 Litre X The digital thermostat fitted to the National LL a Luna Portable refrigerator allows accurate Power ON OFF setting of the desired cooling temperatures in the left hand fridge bin 40 Litres Bin temperatures can be selected between SET MODE PRESS DOWN FOR 3 SECONDS Y 20 C and 12 C in 1 C increments When powering up the fridge the temperature inside the fridge will be reflected on the display NOTE the previously set temperature will be in me
23. on until the preferred level is reached When powered by an AC source the battery protection level can be changed but will only affect operation when the DC source is used Refer to page 10 and 11 FAULT ID Power ON OFF HOLD FOR 3 SECONDS SET MODE PRESS DOWN FOR 3 SECONDS p STATUS INDICATORS Hmm Control Panel SPEED CONTROL THE FRIDGE AUTOMATICALLY SELECTS VARIOUS SPEEDS TO MAINTAIN THE DESIRED TEMPERATURE S THE TURBO BUTTON TO OVER RIDE AUTOMATIC SPEED CONTROL TURBO BATTERY PROTECTION THE FRIDGE WILL AUTOMATICALLY CUT OUT AT THE SELECTED BATTERY PROTECTION LEVEL HIGH O 11 5V MED O 105 LOW O 95 BATTERY TO BE COMPLETELY DRAINED TEMPERATURE LOW WILL ALLOW THE On Off control am TEMPERATURE A Power ON OFF HOLD FOR 3 SECONDS y SET MODE PRESS DOWN FOR 3 SECONDS Battery Protection BATTERY PROTECTION THE FRIDGE WILL AUTOMATICALLY CUT OUT AT THE SELECTED BATTERY PROTECTION LEVEL HIGH O 11 5v MED O 10 5V Low 9s5v LOW WILL ALLOW THE BATTERY TO BE COMPLETELY DRAINED The digital thermostat fitted to the National Luna Portable refrigerator allows accurate setting of the desired cooling temperatures Setting the Temperature X ED TEMPERATURE a Power ON OFF HOLD FOR 3 SECONDS SET MODE PRESS DOWN FOR 3 SECONDS 2 With the single compartment refrigerators temperatures can be
24. re recognised as the most powerful in the world Low power consumption is achieved using 60mm high density insulation and a very compact design With the aid of an integrated electronic thermostat these units can be accurately set as a fridge or as a freezer Getting to know your portable fridge Single door 40L 65L 80L 125L Lid Interior light 24V 10W Lid locking latches Cabinet exterior Control panel Carry handles Compressor area AC input with fuse 3 15A DC input with fuse 15A 10 Cooling Bin Evaporator CO COND UN ONH Automatic speed control with TURBO over ride Fault identifier light Run status light Power ON OFF and temperature UP control Temperature display SET mode and temperature DOWN control Battery protection control The refrigerator can be turned ON and OFF via the control panel Press and hold the A button for 3 seconds to turn the fridge ON or OFF If power to the refrigerator is interrupted it will default to ON automatically Note When the fridge is switched off the interior light will still function if the unit is connected to a power source The refrigerator is equipped with a multi level battery protection circuit The user has the choice of three voltage levels at which the compressor will shut down to protect against excessive battery discharge To change the protection level press and hold the butt
25. selected between 20 C and 30 C in 1 C increments When powering up the fridge the temperature inside the fridge will be reflected on the display NOTE the previously set temperature will be in memory To select the new cooling temperature press and hold the F button until the display starts to flash The previous set temperature will be displayed Press A or SS to raise or lower the desired temperature The thermostat will accept the new setting and exit the setting mode 10 seconds after the last button was pressed It will now remember the new set temperature The temperature display will reflect the inner bin temperature prior to the new setting the new setting is colder the compressor will then switch on and cool the fridge further to the set point During this time the run indicator light will be displayed Speed Control SPEED CONTROL THE FRIDGE AUTOMATICALLY SELECTS VARIOUS SPEEDS TO MAINTAIN THE DESIRED TEMPERATURE National Luna refrigerators have an advanced speed control which will vary the speed of the compressor in order to conserve power and optimise performance PRESS THE TURBO BUTTON TO OVER RIDE AUTOMATIC SPEED CONTROL o MAXIMUM POWER WILL BE USED IN TURBO MODE For situations where maximum cooling power 5 required press and hold the Turbo button until the indicator This will bypass automatic control and force high speed operation Refer to page 9 Using the TUR
26. set temperature point where the fridge will then switch off Temperature will then be maintained at low speed This logic makes the fridge operate and maintain the desired bin temperature under all ambient temperature conditions optimising performance and efficiency Should the temperature of the fridge contents change such as when fresh foodstuffs are added the fridge will automatically speed up to cool the new contents e Logic 2 Deep Freezing Setting temperature below 11 C When temperatures are set below 11 C the Smart Compressor Control will operate at high speed initial start up to bring temperature down as fast as possible to the desired set point Thereafter temperature will be maintained at medium speed Speed Control SPEED CONTROL National Luna refrigerators have an advanced speed THE FRIDGE AUTOMATICALLY SELECTS VARIOUS eee TO MAINTAIN THE DESIRED TEMPERATUR control which will Vary the speed of the compressor in order to conserve power and optimise performance PRESS THE TURBO BUTTON TO OVER RIDE AUTOMATIC SPEED CONTROL For situations where maximum cooling power is required press and hold the Turbo button until the MAXIMUM POWER WILL BE USED IN TURBO MODE indicator is illuminated This will bypass automatic control and force high speed operation Selecting the Turbo mode will over ride the Smart Control function and the unit will run at maximum speed 0 Battery Voltage vs Capacity
27. tery but only when connected Ensure all connections are secure to 230V mains Ensure supply has 4mm wire or thicker and that the vehicle s body is not used as an earth The DC supply has inadeguate wiring causing voltage loss Fault ID light flashes once See page 6 and 10 every 4 seconds Select Low on battery protection See page 10 Fridge is initially connected to a battery that is not fully charged The ventilation fan is noisy or not running The ventilation fan is blocked or damaged There is excessive dust or dirt build up on the fan Check the ventilation fan for obstructions If the fan is broken return the refrigerator to an authorised agent for repair Under high pressure conditions this fault will rectify itself automati cally when gas pressures equalise Continuous 3 flash conditions may require electronic control replace ment by an authorised service agent Continuous 4 flash conditions may require electronic control replace ment by an authorised service agent Check fan Ventilation inadeguate Wait for ambient temperature to drop See page 11 Contact a National Luna service agent for a probe replacement The compressor failed to start correctly High pressure due to over load or electronic failure The compressor is not main taining the correct minimum speed Compressor area 5 over heated The cooling fan is in operative Ambient temperature very hig
28. ual freezer combination This unit was not designed primarily to be used as a dual freezer Should the user choose to do so power consumption will increase above single bin freezers Weekender 50 Twin is below the thermostat setting the fridge will 1 During times when the ambient temperature surrounding the not be required to run Under this condition the freezer compart ment will not cool as this requires the fridge compartment to be cooled This condition may occur during winter months if the thermostat is not set to a lower temperature than ambient 22 Setting the Temperature 52 Litre The digital thermostat fitted to the National Luna Portable refrigerator TEMPER T oA 42 allows accurate setting of the desired D cooling temperatures Power ON OFF HOLD FOR 3 SECONDS C With the single compartment refrigerators 7 temperatures can be selected between SET MODE PRESS DOWN FOR 3 SECONDS 20 C and 30 C in 1 C increments When powering up the fridge the temperature inside the fridge will be reflected on the display NOTE the previously set temperature will be in memory To select the new cooling temperature press and hold the Y button until the display starts to flash The previous set temperature will be displayed Press A or CG to raise or lower the desired temperature The thermostat will accept the new setting and exit the setting mode 10 seconds after the last button was pressed
29. ual run status lights Power ON OFF and fridge temperature UP control C Fridge temperature display Fridge SET mode and temperature DOWN control Freezer SET mode and temperature UP DOWN Freezer temperature display The refrigerator can be turned ON and OFF via the control panel Press and hold the A button for 3 seconds to turn the fridge ON or OFF If power to the refrigerator is interrupted it will default to ON automatically Note When the fridge is switched off the interior light will still function if the unit is connected to a power source The user has the choice of three voltage levels at which the compressor will shut down to protect against excessive battery discharge To change the protection level press and hold the button until the preferred level is reached Refer to page 10 and 11 National Luna refrigerators have an advanced speed control which will vary the speed of the compressor in order to conserve power and optimise performance For situations where maximum cooling power is required press and hold the Turbo button until the indicator is illuminated This will bypass automatic control and force high speed operation Refer to page 9 Power ON OFF HOLD FOR 3 SE PRESS THE TURBO BUTTON TO OVER RIDE AUTOMATIC SPEED CONTROL O ti MAXIMUM POWER WILL BE USED IN TURBO MODE SET MODE PRESS DOWN FOR 3 SECONDS y FRIDGE TEMPER
30. una Warranty Introduction Congratulations on the purchase of your National Luna portable fridge freezer The National Luna range of portable fridges and freezers are high performance high efficiency refrigerators ideal for harsh conditions and applications that are limited to battery power such as off road vehicles caravans and solar installations The versatility of each of the National Luna models allows the use of a wide range of AC supply voltage 85V DC 265V AC as well as 12 volt or 24 volt battery power 9 6V AC 31 5V DC The use of a custom designed digital thermostat and smart control circuitry ensures temperature Stability and low power consumption All refrigerator models are built using high quality materials unique assembly techniques and strict testing procedures to ensure the highest level of quality and performance Precautions When the refrigerator is used in an automotive application ensure that it is secured to prevent accidental movement The carry handles can be used with straps or tie downs if necessary e Abase mounting plate is optional and recommended for most applications Allow a 50mm gap around the refrigerator compressor area for ventilation Do not block or cover the ventilation holes Ensure the correct type of cable and connectors are used for installation Ensure that any power leads connected to the refrigerator will not be pulled or damaged by any movement of the fridge espec
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