National Luna NLDC-25 Owner'S Manual Download | Manualshive

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Typical Installation

FUSE

FUSE

SOLAR PANELS

+

-

+

-

AUX

BATTERY

MAIN

BATTERY

6

+

-

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Summary of Contents for NLDC-25

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Page 2: ...e NLDC 25 Universal Mounting Fixture Typical Installation diagram Installation steps Selecting battery type Ignition over ride Temperature compensation Remote monitor Remote monitor operation Remote monitor warning messages Application examples Speciﬁcations 1 1 2 3 3 4 6 7 7 8 8 9 10 11 12 15 ...

Page 3: ...s in accordance with the installation instructions The NLDC 25 from National Luna is a DC to DC battery charger and isolator for a dual battery system It will charge an auxiliary or service battery from a vehicle alternator or Solar panel up to 25A output current Traditional 12V and 24V vehicle alternators as well as variable voltage alternators are supported The integrated MPPT solar regulator pr...

Page 4: ...ry output 9 Terminal block Common ground connections 10 Terminal block Alternator input 11 Terminal block SOLAR panel input 12 Mounting feet Status Display 1 Battery type selection button 2 Battery type indicator 3 OK Fault indicator Green OK Red Fault 4 Input source indicator ALT or SOLAR 5 Charge stage indicator NLDC 25 Features 1 3 2 4 DC DC Battery Charger Battery Float Li ion Wet Ca AGM Gel C...

Page 5: ... heat sensitive away from the NLDC 25 Ÿ If the temperature compensation probe is used it must be able to reach the auxiliary battery 2 Ÿ It is recommended to use 16mm cables for connections to the main and auxiliary batteries Smaller gauge cables can be used for short distances Ÿ In line fuses must be ﬁtted in the positive cables close to the respective main and auxiliary batteries Ÿ Use the commo...

Page 6: ...event excessive movement in the ﬁnal application If the remote monitor is ﬁtted allow clearance for the plug and cable The NLDC 25 is supplied with a universal mounting ﬁxture and fasteners that can be used to aid installation in a variety of applications This ﬁxture allows the NLDC 25 to be attached in several ways depending on the application requirements Use the supplied screws and washers to s...

Page 7: ...he supplied screws and washers to assemble the ﬁxture as shown in the diagram Use appropriate fasteners to secure the assembled plate to the application The NLDC 25 can be rotated on the plate by 90 to suite the application Vertical or horizontal installation is supported Step plates M4x20 screws Spring washer Flat washer ...

Page 8: ...Typical Installation FUSE FUSE SOLAR PANELS AUX BATTERY MAIN BATTERY 6 ...

Page 9: ...If a solar panel is used connect the positive and negative cables from the solar panel to the SOLAR and GND terminals respectively Ÿ Connect the temperature compensation probe and IGN over ride cable if used See page 8 Ÿ Install the remote monitor if used and run its cable to the remote monitor port on the NLDC 25 See page 9 Ÿ Double check all cables and connections for correct installation Ÿ Re c...

Page 10: ...nd to one of the AUX battery terminals or to the battery casing Connect the smaller ring on the sensor cable to the sensor terminal on the NLDC 25 Connect the larger ring to one of the GND terminals With the probe ﬁtted the NLDC 25 will optimise ﬁnal charge voltage based on the measured temperature This prevents over charge at higher temperatures and increases charge performance at lower temperatu...

Page 11: ...n or off The screen will turn off automatically when the system is idle It will turn on automatically when the next charge cycle starts The Remote Monitor is supplied with a mounting bracket that allows the viewing angle to be adjusted Attach the bracket to a ﬂat surface using appropriate screws or adhesive Slide the Remote Monitor onto the mounting bracket until it clicks securely Connect the squ...

Page 12: ...the UP or DOWN buttons Display mode 2 In this mode the status of the main and auxiliary batteries are represented as graphical bar graphs The actual voltages are shown for the respective batteries During a charge cycle the input source ALT or SOLAR is displayed with the actual charge current If there is no active charge cycle STANDBY is displayed The AUX graph is animated during charge and represe...

Page 13: ...e SOLAR ALT or AUX terminals is too high Ensure the application voltages are within speciﬁcation OVER TEMPERATURE PROTECTION The detected auxiliary battery temperature is above 50 C Charging is stopped to prevent damage to the battery It is possible that the battery is damaged or is located in an area that is too hot This error will also be displayed if the NLDC 25 temperature is above 115 C Charg...

Page 14: ...speciﬁcations on page 15 The NLDC 25 will support multiple auxiliary batteries connected in parallel to form a large 12V bank This is a common conﬁguration in trailers or caravans with large service battery banks Care should be taken to ensure that the parallel batteries are matched in type capacity and age Application examples AUX BATTERY AUX BATTERY AUX BATTERY MAIN BATTERY Connector to MAIN bat...

Page 15: ...Y MAIN BATTERY AUX BATTERY AUX BATTERY 12V 24V FUSE FUSE FUSE FUSE In cases where the auxiliary battery has had insufﬁcient charging time a mains powered battery charger can be connected to the auxiliary battery It is not necessary to disconnect the NLDC 25 provided that there is no active charge cycle and the NLDC 25 is in standby mode Do not connect an external battery charger if power is being ...

Page 16: ...uxiliary Battery Box or other 12V battery pack Any loads connected to the battery will be powered by the NLDC 25 when a charge cycle is active If the Auxiliary Battery Box is disconnected the NLDC 25 will automatically revert to a safe mode An error will appear on the remote monitor if installed see page 11 Connecting an external battery pack ...

Page 17: ...ge AGM Gel 14 4V 13 6V Standard Wet 14 6V 13 6V Calcium 14 8V 13 6V Lithium Ion 14 4V 13 6V 9V 42V 11V 32V 13 2V 12 6V MPPT 375W 25A 14 8V 16V 20 C to 85 C IP67 EN55011 AS NZS CISPR11 11 0V 31V 3V 14 8V 25A 375W 26 4V 23 2V 29 6V 31V 12 0V 158mm x 115mm x 53mm Op onal 10mA Ba ery Temperature Compensa on High temperature Low Temperature Ba ery over temperature protec on Device Protec on Reverse Pol...

Page 18: ...Technical Speciﬁcations continued 158mm 126mm 196mm 206mm 216mm 226mm 149mm 180mm 53mm 110mm 65mm 155mm 65mm 37mm 16 38mm 39mm 38mm ...

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