Table of Contents
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Models: PT-14W, PT-25W, PT-24-8W, & PT-24-13W
CONTENTS
Section Topic
GENERAL INFORMATION................................. 3
IMPORTANT SAFETY INFORMATION................ 4
INSTALLATION................................................. 6
A) Materials Provided.......................... 6
B) Location.......................................... 6
C) Mounting........................................ 6
D) DC Output Wiring............................ 7
E) Multiple Unit Parallel Wiring........... 9
F) AC Input Wiring............................... 9
OPERATION..................................................... 10
A) Three Stage Charge Regimen........... 10
B) Time-Out Circuit.............................. 12
D) Remote Monitor Panel Option........ 13
F) Equalize Timer Option...................... 15
G) Output Ammeter................................ 16
H) Power-On Indicator........................... 16
APPLICATION NOTES........................................ 16
A) Start-Up.......................................... 16
B) Constant Versus Occasional Use...... 16
C) Proper Load Sizing........................... 17
D) Operation with Engine.................... 17
E) Operation as a DC Power Supply...... 17
SPECIFICATIONS............................................... 17
TROUBLESHOOTING........................................ 18
BATTERY CARE TIPS......................................... 20
REFERENCE APPENDIX..................................... 22
l Unit Dimension Drawing..................................... 23
Phase Three
Three Stage Smart Charger
Installation/Operation manual
Page
M-PT-W4
As of December 08
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Table of Contents
Related Manuals for NewMar PT-14W
Summary of Contents for NewMar PT-14W
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Page 1: Table Of Contents
Phase Three Three Stage Smart Charger Installation/Operation manual Models: PT‐14W, PT‐25W, PT‐24‐8W, & PT‐24‐13W CONTENTS Section Topic Page I) GENERAL INFORMATION......... 3 II) IMPORTANT SAFETY INFORMATION.... 4 III) INSTALLATION.......... 6 A) Materials Provided...... 6 B) Location.......... 6 ... - Page 2 Quick Reference Drawing ...
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Page 3: I) General Information
I) GENERAL INFORMATION Your Phase Three Series Battery Charger represents a new phase in charger design and performance, employing "smart" switching circuitry which puts batteries through the optimum three‐step charge process, adapts for gel‐cell or lead‐acid batteries, features precise voltage compensation for varying battery temperature, is rated for continuous duty and is housed in a rugged, powder coated stainless steel and aluminum case. Following is a brief listing of some of the more important features/options of your Phase Three Charger. Each is fully detailed later in this manual: * Three step “smart” charging: bulk, absorption, float * Gel cell/lead‐acid switch selects optimum charge/float voltages based on battery type * Multiple output banks charge independently based on demand * "Universal" 115/230V AC, 50‐60 Hz input—can be used anywhere in the world * Current limiting prevents damage from overload * Cooling fan allows continuous operation at full‐rated output * High charge voltage time‐out circuit prevents overcharge during continuous high amperage demands * Optional temperature compensation sensor (model TCS‐12/24) fine tunes output voltage based on battery temperature * Optional remote panel (model RP) allows remote monitoring of charger phase status and manual re‐ initialization of three stage charge cycle * Optional equalization circuit connection * Use as a power supply without in‐line battery; allows continued use of DC powered electronics (when AC is available) in the event that batteries must be taken off‐line or removed * Rugged stainless steel case with drip shield * Models PT‐14W and PT‐24‐8W carry the CE mark ... -
Page 4: Ii) Important Safety Information
II) IMPORTANT SAFETY INSTRUCTIONS 1. SAVE THESE INSTRUCTIONS — This manual contains important safety and operating instructions for the Phase Three Battery Charger. 2. Before using this battery charger, read all instructions and cautionary markings on (1) the battery charger (2) the battery, and (3) any product powered by the battery. 3. CAUTION — To reduce the risk of injury, charge only 6 cell (PT‐14W and PT‐25W) or 12 cell (PT‐24‐8W and PT‐24‐13W) lead‐acid rechargeable batteries (flooded, AGM, gel or sealed). Other types of batteries may burst, causing personal injury and damage. 4. Do not expose charger to rain or spray. 5. Use of an attachment not recommended or sold by NEWMAR may result in a risk of fire, electric shock or injury to persons. 6. To reduce the risk of damage to the electric plug and cord (if plugged into an AC outlet), pull by plug rather than cord when disconnecting the charger. 7. Make sure the cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or stress. 8. An extension cord should not be used. Use of an improper cord could result in a risk of fire and electric shock. 9. Do not operate the charger with a damaged cord or plug; replace them immediately. 10. Do not operate the charger if it has received a sharp blow, been dropped, or otherwise damaged; take it to a qualified serviceman. 11. Do not disassemble the charger; take it to a qualified serviceman when service or repair is necessary. Incorrect reassembly may result in a risk of electric shock and fire. 12. To reduce the risk of electric shock, disconnect the charger from AC source before attempting any maintenance or cleaning. WARNING—RISK OF EXPLOSIVE GASES 1. WORKING IN THE VICINITY OF A LEAD‐ACID BATTERY IS DANGEROUS. BATTERIES GENERATE ... - Page 5 PERSONAL PRECAUTIONS 1. Someone should be within range of your voice or close enough to come to your aid when you work near a lead‐acid battery. 2. Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing or eyes. 3. Wear complete eye protection and clothing protection. Avoid touching your eyes while working near a battery. 4. If battery acid contacts skin or clothing, wash immediately with soap and water. If battery acid enters the eye, immediately flood the eye with running cold water for at least 10 minutes and get medical attention immediately. 5. NEVER smoke or allow a spark or flame in the vicinity of the battery or engine. 6. Be extra cautious to reduce the risk of dropping a metal tool onto the battery. It might spark or short‐ circuit the battery or other electrical part and cause an explosion. 7. Remove personal metal items such as rings, bracelets, necklaces and watches when working with a lead‐acid battery. A lead‐acid battery can produce a short‐circuit current high enough to weld a ring or the like to metal, causing a severe burn. 8. Use the battery charger for charging gel‐cell, AGM or flooded lead‐acid batteries only. It is not intended to supply power to a low voltage electrical system other than in a starter‐motor application. Do not use the charger for charging dry‐cell batteries that are commonly used with home appliances. These batteries may burst and cause injury to persons and damage to property. 9. NEVER charge a frozen battery. PREPARING TO CHARGE 1. Be sure the area around the battery is well ventilated. 2. Clean battery terminals. Be careful to keep corrosion from coming in contact with eyes. 3. Add distilled water in each cell until battery acid reaches level specified by battery manufacturer. This helps purge excessive gas from cells. Do not overfill. For a sealed battery without cell caps, carefully follow manufacturer’s recharging instructions. 4. Study all battery manufacturers’ specific precautions such as removing or not removing cell caps while charging and recommended rates of charge. GROUNDING AND AC POWER CORD CONNECTION ...
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Page 6: Iii) Installation
III) INSTALLATION ) Materials Provided The Phase Three charger is provided completely assembled and ready for installation. The installer must provide four suitable 1/4" mounting screws/washers, as well as DC output wiring and connectors. Proper sizes and gauges for the wire and connectors are noted in section D following. B) Location The charger should be mounted on a wall, bulkhead or other suitable mounting surface as close to the batteries to be charged as possible. Do not mount the charger directly over the batteries as battery fumes may cause excessive corrosion. The charger is ignition protected so it is acceptable to locate the unit in an area where ignition protected equipment is required. The area should be well ventilated and free from excessive moisture, exhaust manifolds and battery fumes. Vertical mounting is preferred. However, horizontal mounting is acceptable where absolutely necessary. Do not mount the charger where water, spray or condensation can occur, as this will shorten charger life. It should not be located where there is a possibility of dust or debris being drawn into the unit through the fan. A minimum of 2" clearance around the charger is recommended for proper cooling. If the charger is located in an extreme heat area, such as an unventilated engine room, and maximum operating temperature is exceeded, an automatic thermal protection circuit will shut the charger off. Although it will return to service automatically after cooling sufficiently, thermal cycling will shorten the life of the charger. If this condition occurs repeatedly, the charger should be relocated. For optimum performance and longer life the charger should not be located in an area of extreme high temperature. C) Mounting Important Pre‐Installation Note: The wiring access port for AC input is located on the bottom of the charger. If the factory‐installed AC cord must be changed for any reason, this should be done before mounting, as access will be difficult afterwards. The charger may be mounted on either a metal or non‐metal surface*. *Per ABYC A‐31: A DC chassis grounding conductor shall be connected from the case of the battery charger to the engine negative terminal or its bus, and must not be more than one size under that required for the DC current‐carrying conductors, and not less than 16 AWG. Four screws (wood or machine screws, depending on mounting surface) with washers, sized for 1/4" ... -
Page 7: D) Dc Output Wiring
Do not mount the charger where there is a possibility of water entering the unit. Evidence of water entry into the charger will void the warranty. D) DC Output Wiring Note: Only qualified service personnel should access the output terminals of the charger. The installer will need to provide output wires. Use the table below to determine the correct gauge wire, based on the length of the wire run from the charger to the batteries. Model Length of Wire from Charger to Batteries (in feet) 10' 15' 20' Minimum Wire Gauge AWG_____ PT‐24‐8W #18 #16 #14 PT‐24‐13W #16 #14 #12 PT‐14W ... - Page 8 FIGURE 2: Wiring with Battery Switch * Per ABYC A‐31: A DC chassis grounding conductor shall be connected from the case of the battery to the engine negative terminal or its bus, and must not be more than one size under that required for the DC current carrying conductor and not less than 16 AWG. Note: This diagram does not illustrate a complete system. Refer to ABYC standards E‐11 AC & DC electrical system on boats. IMPORTANT: Install fuses at batteries per ABYC recommendations. An Important Note about the DC Output Fuse: DC output wiring is protected by an internally mounted ATC blade‐type output fuse. The fuse holder is located to the bottom right of the meter on the large circuit board. To remove the fuse for checking or replacing, remove drip shield, then cover and simply pinch the fuse between thumb and forefinger and pull firmly downward. The current limiting circuit of the Phase Three charger should prevent the fuse from blowing under normal operating conditions. If the fuse blows, this may indicate a reverse polarity hook‐up or an internal short. If the battery is connected to the charger backwards, the fuse should blow to prevent a dangerous short circuit, however damage to the internal components is possible, as well. If, after replacing this fuse, it blows again upon application of power, return the charger to an electronics service professional or to the factory for a thorough inspection. Always replace the fuse with another of the . same type and value The values for the DC output fuses are listed in the table on the next page: ...
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Page 9: E) Multiple Unit Parallel Wiring
PT‐25W ATC 30 amp PT‐24‐8W ATC 15 amp PT‐24‐13W ATC 20 amp E) Multiple Unit Parallel Wiring If increased power or system redundancy is required, a second charger may be wired in parallel. The unit is diode protected so it will not be damaged by feedback from the second unit and current limiting will prevent overloading in the case of a failure of one of the units. Observe the following guidelines when wiring a parallel unit. 1) Use only another identical charger model. Do not use a different charger model, either from NEWMAR or from another manufacturer. 2) Wire length and gauge and wire lug size must be identical for each charger to ensure proper load sharing. 3) Wire gauge for each charger must be the same used as if a single charger were wired into the system by itself. F) AC Input Wiring For the convenience of the installer an AC power cord has been factory installed. It is a three‐conductor stranded type, 16 AWG. The cord is terminated with a plug suitable for standard USA outlets and uses standard USA color coding of conductors. AC input is "universal". Models PT‐14W and PT‐24‐8W operate in a range of 85‐264 VAC, 47‐63 Hz. No ... -
Page 10: Iv) Operation
securing it. Loosen the strain relief to slide the cover assembly down the cord for terminal access. Note the configuration of terminal block wiring as follows: FIGURE 3: AC Input Wiring (as viewed from bottom of charger) (In marine applications) All charger wiring should be installed in accordance with UL, U.S. Coast Guard and/or A.B.Y.C. regulations and recommendations, as well as all relevant local codes. See REFERENCE APPENDIX at the end of this manual for sources. A note about the AC input fuse: The AC input of your charger is protected by an input fuse which is located inside the unit. Due to the current limiting characteristic of the charger, it is highly unlikely that this fuse will blow unless there is some other malfunction within the charger. This fuse is not user‐ replaceable. Replacement of the input fuse must be performed by a qualified service person. IV) OPERATION A) Three Stage Charge Regimen The Phase Three Battery Charger utilizes the three stage charge regimen which is widely recommended by battery manufacturers for allowing the fastest possible recharge time without loss of batteries’ electrolyte (gel or liquid) which may be caused by sustained charging at higher voltages. When AC power is applied to the charger, the green power‐on light will illuminate. This three stage regimen is initiated each time AC is first applied, when drained batteries are most likely to be encountered, and proceeds slowly or quickly through each stage depending on the battery’s relative state of charge. (This also occurs when the reinitialize button on the optional remote panel is activated; see Remote Panel Option section for more information). The charge regimen proceeds as follows: 1) Bulk Phase: When batteries are significantly discharged the charger responds initially by delivering a high amount of DC current, at or near the charger’s maximum rated output, in order to rapidly replenish ... - Page 11 them. It is during this stage that charging current is maintained at a high level as battery voltage increases. Bulk charging continues until battery voltage reaches the “charge” voltage level (where batteries are at about 75‐80% of capacity). A current limit circuit prevents charger overload during this maximum output stage. At this point the charger switches to the second stage. 2) Absorption Phase: During this second stage of the charge cycle, battery voltage is maintained at the “charge” voltage level. Output current begins to taper off as the battery plates become saturated. Charge voltage is maintained until the current sensing circuit detects that output current has tapered to about 5‐15 % of charger rating*. At this point the batteries are at about 95 % of full charge and the Phase Three charger switches to the third and final stage of the charge cycle. * Note: The absorption phase may also be ended by the time‐out circuit. See section B following for a complete explanation of the purpose and functioning of the time‐out circuit. 3) Float Phase: For extended battery life the Phase Three then automatically switches to a lower float voltage level. This float charge keeps batteries at peak condition without overcharging. The charger may be left in this stage for lengthy periods of time without attention (though periodic checks of electrolyte level in flooded batteries is recommended). It is not necessary or recommended to shut the charger off when this stage is reached. A typical three stage charging cycle is illustrated in FIGURE 4. FIGURE 4: Typical Charger Output Graph (into battery without load) * Approximately 10 hours maximum at factory setting The bulk/absorption stages last approximately 10 hours maximum at factory setting. Note: If a load is applied during the absorption phase, the charger may revert to the bulk phase depending on the total current draw. When the charger switches to the float phase, it will remain in that phase regardless of current draw. The charger is still able to deliver full output current when in the float phase. To re‐initialize the three stage process shut the charger off momentarily, then back on again (or press the reinitialize button on the optional remote panel) ...
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Page 12: B) Time-Out Circuit
B) Time‐Out Circuit Batteries have a tendency to lose their electrolyte and may be damaged if they are maintained for long periods of time in the elevated voltage of the absorption phase. Therefore, the Phase Three Charger employs a special time‐out circuit. This circuit is initialized each time AC is first applied to the charger (or when the reinitialize button on the optional remote panel is activated) and runs for a pre‐set interval before forcing the charger to go into the float (lower voltage) mode. The functioning of the charger during this interval is as follows: If the current demand of the batteries/load falls below 5‐15 % of the charger’s output capacity prior to the circuit timing‐out, the charger will automatically switch to the float mode. If demand rises to about 10‐20 % of charger output capacity, it will return to the elevated output voltage of the absorption phase. This switching back and forth between modes may occur until the circuit times‐out (8‐10 hours after AC is first applied), after which the charger will remain at float voltage, until the circuit is re‐initialized, either by turning the charger off and then on again or by presssing the re‐initialize button on the optional remote panel. Installation Note: The time‐out circuit of the PT charger has been set at about 8‐10 hours, which is appropriate for battery systems within the capacity range specified on the front panel of the charger. If the charger is used with a battery system with a capacity near (or outside) the upper or lower ranges of the specified range of the charger, adjustment of the internally located time‐out circuit adjustment pot may be recommended. The procedure is as follows: (Caution: Ensure AC input has been disconnected before proceeding) 1) Remove the two phillips head screws on the front panel (bottom right and just above the output terminals), as well as the two phillips head screws on each side of the unit. 2) Carefully lift the main cover off of the charger base if installed. It is necessary to remove the drip shield. 3) Locate the potentiometer labeled "TIMER ADJ" on the charger function circuit board located on the left hand side of the charger. 4) Using a small flat tip screwdriver, turn the potentiometer: * clockwise to increase the amount of time the charger remains in the absorption mode before timing out ... -
Page 13: C) Gel-Cell/Lead-Acid Selector Switch
Note: Once the time‐out circuit has put the charger into float mode, the charger will remain in this mode. Since the Phase Three Charger is well regulated, it is able to deliver its full rated output current in this mode and battery discharge will not occur (provided load current does not exceed charger rating and output wiring is properly sized). C) Gel‐Cell — Flooded/AGM Switch According to most battery manufacturers, the ideal charge regimen for gel‐cell and flooded (wet) lead‐ acid or AGM (Absorbed Glass Mat) batteries differs somewhat. The gelled electrolyte in a sealed battery may be lost or damaged by high voltage and, once lost, cannot be replaced as it can with a wet lead acid battery. Manufacturers of gel‐cells usually recommend an ideal charge voltage which is slightly lower for a gel‐cell than a lead‐acid battery. (The charge regimen recommended for AGM batteries is typically similar to that of flooded lead‐acid batteries.) However, when the charger is in the float voltage mode over lengthier periods of time, gelled electrolyte in a sealed battery is not susceptible to evaporation, as is the non‐immobilized electrolyte of a wet lead acid battery. This evaporation can be accelerated by the applied voltage. Consequently, the ideal float voltage is slightly higher for a gel‐cell than a lead‐acid or AGM battery. The battery selector switch is located on the Charger Function Board. The ideal charge/float regimen has been programmed into the Phase Three Charger for either sealed gel‐cell or flooded lead‐acid/AGM batteries. Simply make the proper selection for your battery type via the slide switch on the front of the charger. The switch positions are indicated on either side of the switch access port. Use a ball point pen or similar object to slide it into the correct position. Slide the switch down for Lead‐Acid, Sealed and AGM, and up for Gel‐Cell. Note: A wide variety of batteries are now available which do not conform to conventional descriptions as “gel‐cell” or “lead‐acid”. You are advised to consult the manufacturer of your particular battery as to proper charging regimen, and use the battery type selection switch setting which most closely conforms to the recommended voltages. See the SPECIFICATIONS section for the actual preset charge and float voltages for each model. D) Remote Monitor Panel Option A Remote Monitor Panel is available from NEWMAR (model RP) which will enable you to monitor the charger’s status at‐a‐glance from a remote location. Red and green L.E.D.’s indicate whether the charger is in the bulk, absorption or float phase of the charge cycle. In addition, the panel features a re‐initialize ... -
Page 14: E) Temperature Compensation Option
In case additional cable length is required, extension cables are commonly available from most electronics supply retailers such as Radio Shack/Tandy. Request a 6 conductor modular‐to‐modular line cord (part number 279‐422, 25 feet long) and 6 pin modular in‐line non‐reversing coupler (279‐423). E) Temperature Compensation Option Because low battery temperature increases resistance to charging and high battery temperature reduces impedance, requiring a lower charge voltage, the ideal charging voltage will vary depending on the temperature of the battery’s environment when it is being charged. If a charger has a fixed output voltage which is ideal at, say 72° F, that same output may cause a battery charged in a consistently high temperature environment to be overcharged, resulting in excessive loss of electrolyte. Conversely, if the batteries are in a consistently cool environment, they may be chronically undercharged, resulting in sulfation of the battery plates. Either of these two conditions will shorten battery life. Therefore, the Phase Three charger is designed to utilize an optional remote sensor (available from NEWMAR; model TCS‐12/24) which provides automatic temperature compensation. The remote sensor will signal the charger to fine tune its output voltage so that it is properly matched to the temperature of the battery/battery environment. The adjustment rate is approximately ‐5 mV per cell per °C. (Note: The temperature compensation option is strongly recommended for sealed, valve‐regulated, AGM or gel‐cell batteries.) The remote sensor is provided with 30' of cable. One end of the cable is plugged into the temperature compensation jack which is located on the left side of the charger. The location of temp sensor jack is identified on the front panel. In case additional cable length is required, extension cables are commonly available from most electronics supply retailers such as Radio Shack/Tandy. Request a 6 conductor modular‐to‐modular line cord (part number 279‐422, 25 feet long) and 6 pin modular in‐line non‐reversing coupler (279‐423). The sensor itself should be mounted on the inside of the battery box, or more ideally, mounted onto one of the batteries using a clamp or a small amount of silicon‐type adhesive. The sensor has a hole in the center which will accommodate a # 6 screw. If you have access to the exterior of a wall of the battery box, you may drill a hole in the wall of the box and run the screw through to mount the sensor onto the interior wall. Use caution when drilling so that you do not accidentally puncture the case of any battery inside the box. ... -
Page 15: F) Equalize Timer Option
90 32.2 13.7 13.9 13.3 13.1 27.4 27.8 26.6 26.2 F) Equalize Timer Option Some manufacturers of flooded lead‐acid batteries recommend a charging process known as equalization for extended battery life. This process involves occasionally charging a wet lead‐acid battery at a very high voltage for a short period of time in order to completely de‐sulphate each of the battery plates, essentially equalizing their voltage. The installer of the Phase Three charger may choose to wire in this option at the time of installation. Note: The equalization process is for Flooded Lead‐Acid batteries only! The equalize circuit (connector located inside the PT charger) should be wired through a manual or electric timer which provides a closed contact when engaged and an open circuit when timed out (SPST — Single Pole Single Throw). Do not use a manually operated switch for activating the equalize circuit. This is because unless the charger is reverted to a safe float voltage in a timely manner, the batteries will almost certainly be damaged or destroyed. The timer contacts should be a 0‐12 hour type, capable of carrying a minimum of 100 mA at 5V DC CAUTION: Do not install the timer in an area requiring ingnition protected equipment unless it has been certified to meet ignition protection requirements. The equalization circuit of the Phase Three charger boosts output voltage to approximately 8 % above float voltage. Refer to the battery manufacturer’s instructions when deciding the appropriate time period setting for this voltage to achieve proper equalization, while ensuring batteries are not damaged by increased battery temperature. This installation should only be performed by a qualified technician. Installing the timer requires a mating connector with dual wires which are plugged into a jack on the internal charger function circuit board. The connector/wire assembly is available from NEWMAR. ... -
Page 16: G) Output Ammeter
Request part number 873‐3716‐0, CFB Equalize 2 pin assembly. Proceed with the installation as follows: (Caution: Ensure AC input has been disconnected before proceeding) 1) Remove the two phillips head screws on the front panel (bottom right and just above the output terminals), as well as the two phillips head screws on each side of the unit. 2) Carefully lift the main cover off of the charger base. It is not necessary to remove the drip shield. 3) Locate the two‐pin header labeled "J2" just over the cut‐out on the bottom of the front‐facing charger function circuit board. Insert the mating connector and route the two control wires through the vent hole on the bottom of the charger. Connect the wires to the timer. 4) Replace the charger cover. When lowering the cover onto the base , avoid damaging connectors on the charger/function PCB. If used, re‐install the drip shield. G) Output Ammeter This will indicate total charging output current for all battery banks connected. H) Power‐On Indicator This green LED will glow whenever the charger is receiving AC power. ) APPLICATION NOTES A) Start Up 1) Before powering up your charger, check for tight electrical connections to each battery in your system. Switch off any DC loads on the batteries. Apply AC power. Observe the DC ammeter on the front panel. This meter displays the total DC output of the charger, through all banks. It will give some indication of the overall state of charge of your batteries. If the meter is reading mid‐scale or higher, it is an indication that the batteries are in a relatively low state of charge. The charger, sensing this, is supplying high current to the batteries. If the meter needle is at or near the bottom of the scale the batteries are at or nearing full charge. 2) Apply a load to the charger by switching on some lights, a pump or some other DC appliance. Observe the charger meter. It should read approximately the same as the expected current draw of the appliance. As current is demanded from the battery system, the charger will automatically increase its ... -
Page 17: C) Proper Load Sizing
While the output regulation of the charger will minimize battery gassing and water loss, monthly checks of the electrolyte level (for wet lead acid batteries) are still strongly recommended. Some water loss is an inevitable aspect of the charging process, and maintaining the correct electrolyte level in your batteries is the most important thing you can do to assure their maximum performance and long life. C) Proper Load Sizing The Phase Three Charger is rated for continuous duty (e.g., model PT‐14W is rated at 14 amps continuous, PT‐25 at 25 amps continuous, etc.). While the charger cannot be damaged by overloads that exceed this continuous rating, excessive load demands may draw battery voltage down faster than the charger can resupply it. If battery voltage continues to drop and the output current is at maximum while the charger is in service, check to see that your average DC loads are not exceeding the charger’s rated output. If they are, you may wish to consider adding another charger in parallel to provide sufficient power for your requirements. (See section III‐E, Multiple Unit Parallel Wiring.) D) Operation with Engine It is perfectly acceptable to allow the charger to remain on when the engine is started and while it is running. The current limit feature of the Phase Three Charger will protect against any damage due to the high current demands of engine cranking. Output diodes will prevent any back‐feed of current into the charger from the alternator while the engine runs. As the alternator starts to charge the battery, the charger output will decrease. When the battery voltage exceeds the rated output voltage of the charger it will shut off and stay off as long as the batteries are in this high state of charge. If the battery voltage should drop below the charger’s rated output voltage it will automatically return to service. E) Operation as a DC Power Supply (stand‐alone DC power source) Most battery chargers are not suitable for powering electronic devices directly, without a battery attached to the output, as the high ripple and pulsing DC output (i.e., rectified AC output) can interfere with the operation of the device. However, this charger employs a circuit that produces an extremely well‐filtered DC output. Therefore it is able to power virtually any DC powered device (within the unit's rating) without the battery attached in‐line (if, for instance, the battery must be removed for any purpose and AC is still available). All but the most sensitive DC powered electronic devices will function as normally as if powered by a battery. In addition, the current limiting circuitry enables the charger to handle the high start‐up surges associated with inductive loads. VI) SPECIFICATIONS Model ... -
Page 18: Vii) Troubleshooting
Specifications (Cont.) PT‐14W PT‐25W PT‐24‐8W PT‐24‐13W Output Banks: 3 3 3 3 Battery Capacity (Amp‐Hours): 28‐140 50‐250 16‐80 26‐130 Weight (Lbs./Kg.): 7.5 8.5 7.5 8.5 Compliance References: CG, CE CG CG, CE CG Compliance References*: CG Ignition protected per USCG CFR 183.410 CE Carries the CE Mark * Numerous other Safety and EMC compliances may also apply. Contact factory if further compliance information is required. Temperature Rating (all models): ‐10°C to +60°C; Derate linearly from 100% @ 50°C to 60% @ 60°C Nominal Output Voltages at Gel/Flooded Switch Settings (without Temperature Compensation option installed or at 22.2°C (72°F) with Temperature Compensation option installed): 12 Volt Models ... - Page 19 D. Reverse polarity connection d.c. output fuse and other Replace output fuse with like has caused charger to have no internal components likely type and value. If still no output, output blown return to servicing dealer for failure analysis or contact NEWMAR for Return Authorization Number E. High voltage measured across 1. Batteries not connected to 1. Check for tight connection of charger output terminals charger. It is normal to read 1/2 charging leads to batteries volt higher across any output bank ...
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Page 20: Viii) Battery Care Tips
then applying a large d.c. load Factory Contact Information If a problem with your charger persists after you have applied the above‐outlined solutions, or if you have any questions about the installation and proper operation of your charger We will be happy to consult with you to resolve any problem you may have. If it appears the charger must be returned to the factory for repair we will issue a Return Materials Authorization at that time. VIII) BATTERY CARE TIPS Regular maintenance and proper care will assure you reliable service from the most depended upon and sometimes most neglected items, your batteries and battery charger. NEWMAR battery chargers are designed to keep your batteries fully charged but your batteries also need proper regular maintenance to provide a maximum life of service. ALWAYS READ AND FOLLOW THE BATTERY MANUFACTURER’S INSTRUCTIONS Battery Installation Batteries must be securely mounted to prevent them from falling over when the vehicle or boat is in motion. A loose battery can do serious damage. Batteries should be mounted in a battery box to contain any acid spill. Batteries give off a certain amount of hydrogen gas when they are charging. When concentrated, this gas is highly explosive. Therefore make sure they are in an accessible place with adequate ventilation for any hydrogen gas discharge. Cleaning Batteries Dirt and electrolyte salts can build up on the top of your batteries. This accumulation conducts electricity stored in the battery and can cause the battery to discharge by itself. Therefore, at least twice a year, it is a good idea to disconnect the battery cables and scrub the battery with a ... - Page 21 You may wish to purchase a set of terminal post corrosion prevention rings. These are alkali‐ saturated felt rings that slip over the battery post to reduce corrosion. Do not apply grease to any part of the battery terminals, but you may use an occasional light spray of silicone lubricant. Routine Checks and Maintenance Batteries should periodically be “exercised” (slowly discharged and then recharged) to keep them in top condition. New batteries may need to be exercised before they will be capable of their full rating. If your batteries are not the sealed type, distilled water should be added to them whenever needed. The electrolyte should cover the plates by about 1/2", allowing a small air space at the top. Do not fill the cells up to the filler cap as this could cause the battery to sputter out electrolyte when it is being charged. Only distilled water should be used never plain tap water. Tap water contains chemicals and elements that can alter the properties of the electrolyte, including specific gravity. Some chemicals may also create an insulating coating on the battery plates which will retard current flow. The rate that water is lost by the battery is dependent on several factors; battery condition, ambient temperature, battery use, charge voltage, etc. It is normal for batteries which are not maintenance‐free to require topping off about once a month. A battery’s state of charge may be monitored by checking the specific gravity or by open circuit voltage. You may use the following table to evaluate the condition of your batteries: Battery Condition Table Specific Gravity Measured by State of Hydrometer Open Circuit Voltage ...
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Page 22: Ix) Reference Appendix
2. A BAD BATTERY CHARGER. If the battery open circuit voltage is low and/or the hydrometer indicates your batteries are low, the battery charger should be providing current to the batteries. If it is not, check the input fuse and check to see that you have charging voltage on the output with no battery attached. Note: You will not get an accurate voltage reading on the output of the charger with no batteries attached. This is checked merely to ensure that you do not have an open circuit on the output. The battery charger has a thermal power reduction circuit to protect the charger from overheating. If you suspect this is the case, refer to the INSTALLATION section for information about proper charger location. 3. ELECTRICAL LEAKAGE. You may have a previously unsuspected source of current drain from the battery. To check for a leakage of this sort, disconnect the battery ground cable and connect an ammeter between the negative battery post and ground. If you have a reading over .1 amp, there is a source of current drain from the batteries which must be located and removed. IX) REFERENCE APPENDIX * For more information about boat wiring to conform to U.S. Coast Guard regulations, write: Superintendent of Documents Government Printing Office Washington, DC 20402 Request: 33 CFR 183 Subpart I * For information about American Boat and Yacht Council recommendations for boat wiring, write to: American Boat and Yacht Council 3069 Soloman’s Island Road Edgewater, MD 21037 ... -
Page 23: Unit Dimension Drawing
Unit Dimension Drawing ...
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