Specialty Concepts MARK-22 User Manual

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INSTALLATION AND INSTRUCTION MANUAL FOR THE

MARK/15, MARK/20, MARK/22

SPECIALTY CONCEPTS, INC.

8954 Mason Ave. Chatsworth, CA 91311 USA

Web-site: www.specialtyconcepts.com

The Ideal Charge Controller for Home, RV, Marine, and other Solar Systems.

FEATURES

IDEAL SOLAR CHARGING

• Compatible – Works with almost all types of batteries and solar panels

• Efficient – Over 99% efficiency when charging

• Full Charging – Ensures that the batteries are always topped off

• Battery Safe – Charging method maximizes battery life

• Reduced Maintenance – from healthy charging and reliable operation

OVER-CHARGE PROTECTION

• High Voltage “Shut-off” - shuts off only when battery is full

• Robust Circuitry – Control function 100% solid state.

HIGH RELIABILITY

• Simple, rugged electronics – low component count and streamlined design ensure long term reliability

• No Minimum Voltage Required – Can charge a dead battery

MARK/20-12 MARK/22-12

Nominal Voltage Volts 12

Array Voltage, Max (Voc) Volts 26

Charging Current, Continuous (Isc) (MARK/15,20,22) Amps 15, 20, 22 Charging Current, Max (60 seconds) (MARK/15,20.22) Amps 20, 25, 27 Operating Voltage at Battery, Min Charge Control Volts 0 LCD Metering Volts 7.8 LED Bar-graph Volts 10.5 Current Consumption Quiescent (Tare) Milliamps 8.8 Charging (with LED Bar-graph off) Milliamps 12.8 LED Bar-graph Milliamps per LED 5 Charge Termination, Factory Set (1) Volts 14.4 + Charge Termination, Adjustable Range (2) Volts 13.6 – 15.3 Charge Resumption, Factory Set (2) Volts 13.0 + Voltage Drop, Array to Battery Controller Volts per Amp 0.05 Controller and 2 fuses Volts per Amp 0.08 LCD Meter Accuracy DC Voltage /DC Current 0.5 %/1% Operating Temperature Range °C (°F) -30 to 50 (-22 to 122) Storage Temperature Range °C (°F) -40 to 70 (-40 to 158)

Notes: (1) This is not a constant voltage controller.The batteries will drop below this voltage when completely charged.

(2) The Charge Termination / Resumption span is fixed. The Resumption set-point changes as the Termination set-point is adjusted.

Meets all requirements for UL 1741 (MARK/15 ONLY).

NOTE: NOT ALL MODELS ARE CERTIFIED. REFER TO LOGOS ON PRODUCT (BACK) AND BOX LABLE FOR CERTIFICATIONS.

THIS MANUAL PRESENTS ANSWERS TO 99% OF ALL OF THE TECHNICAL QUESTIONS THAT WE RECEIVE. PLEASE READ IT THROUGHLY TO ANSWER QUESTIONS ABOUT THIS PRODUCT OR ABOUT SOLAR SYSTEMS IN GENERAL. IF YOU STILL HAVE QUESTIONS, PLEASE CONTACT YOUR PROFESSIONAL SOLAR DEALER OR VISIT OUR WEBSITE FOR ADDITIONAL ASSISTANCE. THE AMOUNT OF ASSISTANCE THAT SPECIALTY CONCEPTS, INC. IS ABLE TO PROVIDE OVER THE PHONE DIRECTLY TO END-USERS IS LIMITED.

OUR WEBSITE IS THE BEST PLACE FOR ANSWERS TO YOUR QUESTIONS ABOUT OUR PRODUCTS AND PV SOLAR SYSTEMS

Specifications

PARAMETERS UNITS MARK/15-12

Recognized by Underwriters Laboratories (UL)

IMPORTANT NOTE ABOUT TECHNICAL SUPPORT

FEATURES

• Digital Voltage and Current – Accurate readout for battery and solar panels

• Status Lights – Colored Battery condition bar-graph with “CHARGING” and

• Adjustable Set-point – Easily adjusts to higher or lower voltages

• Reverse leakage protection – Prevents power loss at night.

• Over-current & Incorrect Wiring Protection – Array and Battery fuse

• Terminal Block – for sound and easy wire connections.

• Mounting Options – Can mount flush or onto a wall (with accessory box)

• Environmental Protection – Circuit board is conformal coated to protect

SYSTEM COMPATIBILITY

• Minimum RF Noise – Low switching frequency minimizes electronic noise

• Protection from External RF Noise – Can operate with noisy inverters

“CHARGED” lights

against condensation.

RELATED SYSTEM EQUIPMENT

SOLAR PANELS - (“photovoltaic (PV) array”, “solar modules”):

The MARK/(15,20,22) is compatible with all makes and models of photovoltaic solar panels.

The entire solar array’s open circuit voltage (Voc) cannot exceed 26 volts (the sum of the Voc of all solar panels in series). Also, the solar array’s short circuit current (Isc) cannot exceed 15 amps (for MARK/15) or 20 amps (for MARK/20) or 22 amps (for MARK/22). (This is the sum of the short circuit currents (Isc) of all the solar panels in parallel). Remember that cold temperatures increase the charging current from the panels. Refer to the solar panel’s specifications for the temperature chart.

Install all panels with the correct series-parallel configuration to insure proper system voltage (12 volts) and current.

The MARK/(15,20,22) includes a blocking diode to eliminate leakage of the battery power into the solar panels at night. No additional protection is needed.

OTHER CHARGING SOURCES: Systems with an additional source of charging (alternator, battery charger, etc.) can operate with a solar array and a MARK/(15,20,22). All charging sources need to connect directly to the battery on independent lines and have their own form of over-charge protection.

MARK/(15,20,22) FOR NON-SOLAR APPLICATIONS: These units will ONLY operate with solar electric panels. Do not use to regulate other power sources, such as a hydro or wind generators/alternators or AC battery chargers. These charging sources can damage the controller and/or the generating equipment because the MARK/(15,20,22) stops charging by short circuiting the input.

BATTERIES: The MARK/(15,20,22) provides the proper charging of standard lead-acid batteries that are normally used in recreational vehicles, boats, and remote

stand alone systems. These include wet cell batteries (with filler caps), sealed, maintenance-free and gel-cell batteries. Automobile batteries can also be charged, but these batteries are rarely used as the primary battery in a solar system. Install all batteries with the correct series-parallel configuration to insure proper system voltage and current.

SYSTEMS WITH TWO BATTERY BANKS: When solar charging two separate battery banks, a switch can be installed to allow manual selection of one battery or the other. BATTERY ISOLATORS: In installations that use a diode battery isolator with two batteries, the MARK/(15,20,22) needs to connect directly to one of the batteries or an output

LOADS

: System loads such as lights, radios and DC/AC inverters must be 12 volts DC (unless an inverter is being used).

The MARK/(15,20,22) is an integral part of a solar electric power system that includes a solar panel, a battery and a load.

from the isolator. The MARK/(15,20,22) will not operate if it is connected to the input of the isolator.

INSTALLATION

WARNINGS

WARNING: Electricity, even low voltage electricity, can be dangerous. Installation should be performed only by a licensed electrical contractor or

other qualified personnel. The requirements of the U.S. National Electrical Code should be followed.

WARNING: Follow all safety precautions of the battery manufacturer. Proper ventilation must be provided for the batteries. Most batteries produce

hydrogen gas when charging, which is extremely explosive. Provide adequate battery ventilation. DO NOT expose the battery to open flame, matches, cigarettes or sparks.

CAUTIONS: (The following can cause a fuse to blow and may damage the unit)

CAUTION: DO NOT EXCEED THE UNIT’S VOLTAGE AND CURRENT RATINGS:

• Do not exceed the maximum open circuit voltage (voc) rating of 26 volts. This is the sum of the Voc of all solar panels in series.

• Do not exceed the maximum current rating of 15 amps (MARK/15) or 20 amps (MARK/20). This is the sum of the short circuit currents (Isc) of all the solar panels in parallel.

CAUTION: DO NOT DEVIATE FROM THE RECOMMENDED WIRING INSTRUCTIONS:

• Do not reverse Battery(+) and Battery(-) connections to the MARK/(15,20,22). Any reverse polarity to the battery may damage the unit.

• Do not reverse the Battery and Solar Array connections to the MARK/(15,20,22). A battery connected to the array terminals may damage the unit.

• Do not connect the array directly to the battery when the array is connected to the MARK/(15,20,22) at the same time. This will cause the fuse to blow when the battery reaches full charge voltage

• Do not wire the MARK/(15,20,22) in such a way that it can be connected to an alternator (or other charging source) while the battery is disconnected. Other charging sources should have independent connections to the battery.

• Do not wire the MARK/(15,20,22) in such a way that it can be connected to a load without a battery connected. (Example: Do not connect the loads directly to the MARK/(15,20,22) BATT terminals. This will damage the controller if the battery is disconnected.)

INSTALLATION INSTRUCTIONS:

1. MOUNTING CONSIDERATIONS: - The MARK/(15,20,22) is designed to be mounted flush against a wall. It can be mounted onto a wall by adding the optional

knockout box (4x7 BOX). Flush mounting or wall mounting require different installation and mounting considerations. FLUSH MOUNT: The flush mounted unit requires a rectangular cutout in the mounting surface with sufficient space (2-3 inches) immediately behind to

accommodate the controller.

WALL MOUNT: The wall-mounted unit (MARK/(15,20,22) with the 4x7 BOX) is installed onto a wall surface using four mounting screws. Electrical connections

are made through knockouts in the box to the back of the controller. Wiring can be run down the wall or through a hole in the wall directly below the controller.

2. ACQUIRE TOOLS AND MATERIALS: Refer to MOUNTING TEMPLATE for a list of recommended tools.

3. LOCATION: - The MARK/(15,20,22) should be mounted where it can be easily seen and reached as needed. Carefully consider how the wires are to be run from

the solar panel to the controller and from the controller to the battery. The MARK/(15,20,22) should be mounted as close to the battery as possible, and should be mounted on a vertical surface to aid in cooling. DO NOT REMOVE THE FOUR RUBBER MONTING FEET FROM THE BACK OF THE UNIT.

4. PROTECTION REQUIREMENTS: - The unit should be mounted indoors, out of the weather, unless a weatherproof enclosure is used. Avoid mounting in direct sunlight or in a hot environment or where exposed to any moisture. Locations near refrigerators may pose a moisture problem.

5. PREPARE THE LOCATION PRIOR TO WIRING: FLUSH MOUNT: Use the template provided (attached to back of this manual) to position and mark the cutout and the four mounting holes. Make the cutout

using a keyhole or saber saw. Start by drilling holes in the corners, and then saw between the holes.

WALL MOUNT: Mount the knockout box to the wall using suitable fasteners.

INSTALLATION INSTRUCTIONS: continued

stance round trip

eet / meter)

6. SELECT WIRE:

WIRE TYPE: - When possible, use stranded wire instead of solid wire. Stranded wire does not fatigue and cause loose connections over time as easily

as solid wire. If possible, use red wire for BATTERY+, black for BATTERY– and SOLAR PANEL-, and yellow for SOLAR PANEL+ to prevent wiring errors. Other colors are perfectly acceptable if you do not have these.

WIRE SIZE: - Refer to the “WIRE SIZE” chart below to determine the minimum

lower the AWG (American Wire Gauge). When using large stranded wire, you may need to divide the ends into two groups and straddle the screw on the terminal block.

MARK/15: accepts one wire at 8 AWG (stranded) or two wires at 10 AWG per terminal block position. MARK/20: accepts one wire at 6 AWG (stranded) or two wires at 8 AWG per terminal block position. Large Wires: To connect large wire to the MARK/(15,20,22), use crimp connectors or connect the larger wire to a short, thinner wire using a

wire nut (solder these connections).

size wire needed for each connection. Note that the bigger the wire, the

Wire Size: Minimum wire gauge (AWG) - (based on maximum current)

Model

MARK/15 10 8 6* 4* 14 12 10 8 MARK/20, 22 10 8 6 4* 12 10 8 6

* Wire gauge larger than unit can accept directly. See WIRE SIZE / Large Wires above.

7. COMPLETE THE INSTALLATION OF PANELS, BATTERY AND LOAD: - Follow the manufacturer's instructions for mounting and wiring the solar panel, batteries and the load. Install with the correct series-parallel configuration to insure proper system voltage and current.

8. REMOVE POWER FROM BATTERY / PANELS (if needed): - Before running the wires to the MARK/(15,20,22), be sure that power is disconnected from the batteries and panels.

9. RUN SYSTEM WIRING: - After disconnecting the power sources, run the wires from the battery and solar panel to the location selected for the controller. WALL MOUNT: Run the array and battery wires into the box through the knockouts, using a 1/2 inch Romex cable clamp for strain relief.

10. NOTE WIRE POLARITY: - Make sure to correctly mark the polarity of the wires using colored wires or tags. Incorrect polarity may blow a controller fuse or

damage the MARK/(15,20,22).

BE CAREFUL

negative and the black wire as battery positive. Black and red wiring systems will label the black wire as negative and the red wire as positive. When these systems interconnect, the black wire does not connect to the black wire. CAREFULLY NOTE BATTERY POLARITY AND WIRE COLORS!

11. PREPARE WIRES- Using a wire stripper, carefully remove approximately ½” of insulation from the controller end of each wire, being careful not to nick or

break any wire strands.

12. MARK/(15,20,22) CONNECTION: - Wire the MARK/(15,20,22) according to Figure 1. The wires should be connected directly to the MARK/(15,20,22) screw terminals (no spade or ring lugs). Tighten securely.

Any wiring variation can affect the performance and operation of the system.

CAUTION: The two negative connections (ARRAY(-) & BATTERY(-)) must be separated. Do not install a jumper across the terminal block. CAUTION: The battery negative connection should not come from a frame or chassis. This wire needs to originate directly from the battery. CAUTION: Do not connect any loads to the MARK/(15,20,22) terminals.

13. INSTALL FUSING AS NEEDED: Add circuit protection where needed. A 20 amp fuse (MARK/15) or a 25 amp fuse (MARK/20) and disconnect switch should be

installed on the Battery (+) run of the MARK/(15,20,22).

WARNING: A good system design calls for circuit protection to be added to all wire runs from the battery. This will provide protection from fire and

damage due to over-current from the battery. Also, disconnect switches in-line between the components allows you to isolate power during installation and maintenance. Recommended: Install properly DC rated, high interrupt, current limiting, over-current protection and disconnect equipment between the MARK/(15,20,22) and the battery. Refer to the National Electrical Code or your local alternative energy vendor for recommendations.

… Some vehicles or solar kits use black and white wires for connection to the battery. These kits will label the white wire as battery

Battery Connection

Distance round trip (feet / meter)

Solar Array Connection

10’/3 20’/6m 30’/9m 40’/12m 10‘/3m 20’/6m 30’/9m 40’/12m

14. MARK/(15,20,22) MOUNTING: Mount the MARK/(15,20,22) to the wall or box front using the four screws provided or other suitable fasteners. Do not remove the four rubber spacers, they provide a gap for added cooling.

15. RECONNECT BATTERY AND ARRAY POWER

16. OPERATION: Operation of the charge controller is now fully automatic. If the battery voltage is below the Full Charge Termination set-point (14.4 volts) and

power is available from the array, the MARK/(15,20,22) should start up “CHARGING”.

17. CHECK FOR VOLTAGE DROP (OPTIONAL): - Once the system is installed and operational, a check on the connections is recommended. A poor connection will result in a voltage loss that will distort the battery voltage reading and cause the charging to stop too soon. To check the connections, an accurate volt-meter is required, The MARK/(15,20,22) must be charging

Battery Connection

voltage should be no more than ¼ volt.

Array Connection

should be no more than ½ volt. If the voltage drop is more, suspect crimp connections that have not been soldered, in-line fuses or fuse holders, or loose terminals. If no location of voltage drop is found, consider using larger wires (or double up the wires) for your run.

: First, note the voltage at the battery. Then, immediately note the voltage at the MARK/(15,20,22) battery terminals. Ideally, the difference in

: Next, note the voltage at the panel. Then, immediately note the voltage at the MARK/(15,20,22) Array terminals. Ideally, the difference

with maximum expected charge current (very sunny conditions).

Example: You record these readings: Battery terminals: 13.65 volts MARK/(15,20,22) battery connection:13.95 volts → “.30 volt difference too large. Decrease voltage drop, if possible”

MARK/(15,20,22) panel connection: 14.10 volts Panel(s): 14.30 volts → “Connection OK”

←

Fuses :

MARK/15: Access from front MARK/20, 22: Access from rear

Bar-graph selector : For “Bar” readings, place jumper across both pins. For “Dot” readings, place jumper across only one of the

ins (“storage position”).

SOLAR PANEL ARRAY

Batt (-) Array (-)

Array (+)

Batt (+)

TOP FUSE:

ARRAY

BOTTOM FUSE:

BATTERY

Charge Set-Point Adjust.

djust the trimpot here to modify the charge set-point. Refer to the front display (CHARGE SET-POINT) to view setting. Turn counter-clockwise to increase voltage and

FIGURE 1 MARK/(15,20,22) CHARGE CONTROLLER FIGURE 2 MARK/(15,20,22) - BACK VIEW

FUSE RATINGS: A = Fuse / Disconnect switch

Mark/15 = 20 amp, Mark/20, 22 = 25 amp

B = Rated for load

BATTERY

LOAD

OPERATION

The operation of the MARK/(15,20,22) is completely automatic. This controller will regulate the charging of batteries during conditions of heavy usage, or when left unattended for long periods of time. During operation, it is normal for the front plate to feel warm to hot depending upon the current available from the solar panels.

CHARGING METHOD: Low Frequency Pulse Width Modulation

batteries at a full state of charge and insure the long-term health on the batteries. The “on” and “off” cycle time is wide enough to eliminate electronic noise and short enough to insure the batteries are always topped off. This method allows the batteries to reach a higher voltage with the “on” cycle and protect the batteries from gassing in the “off” cycle. This will provide the benefits of the higher voltage (reduced sulfation and stirred up electrolyte) and excessive water loss.

A TYPICAL DAY:

“CHARGING” light will be on all the time. As the battery charges up, current will pass into the battery for a while and eventually stop. Later, charging will resume and the system will continue this cycle throughout the day. During the course of the day, the duration of the charging period of each cycle will get shorter (cycling on for shorter periods and staying off longer). When the battery is close to full charge, it will pulse current into the battery to achieve and maintain full charge. The “CHARGING” light occasionally turning on and off indicates this pulse charging.

A typical daily cycle will be as follows. As the charging starts for the day and battery state of charge is low, charging will be continuous and the

: - The MARK/(15,20,22) provides pulses of charging current at varying durations to maintain the

prevent excessive gassing and

ARRAY AND BATTERY FUSES

ARRAY FUSE – An array fuse is included on the MARK/(15,20,22). It will protect the controller from over-current from the solar panels, battery short circuit and

incorrect wiring problems with the system. If the fuse continues to blow after all external problems have been corrected, then this may indicate a defective unit. Fuse type: MARK/15: 20 Amp AGC, MARK/20, 22: 25 amp AGC

BATTERY FUSE

batteries and a battery short circuit and incorrect wiring problem in the system. If the fuse continues to blow after all external problems have been corrected, then this may indicate a defective unit. Fuse type: MARK/15: 20 Amp AGC, MARK/20, 22: 25 amp AGC.

- A battery fuse is included on the MARK/(15,20,22). This will protect the controller from over-current from the solar panels, reverse polarity from the

MAINTENANCE

AVOID DISCONNECTING BATTERY: Do not leave the battery disconnected from the MARK/(15,20,22) for an extended period of time (weeks or months). If you

need to, then disconnect both

RECOMMENDED ANNUAL CARE:

system reliability, an annual routine of checking the electrical connections is recommended, especially on a moving vehicle exposed to road vibrations. Over time, electrical connections can deteriorate or corrode causing a voltage drop and possible hot-spots at the problem area.

WHAT TO CHECK:

line, the array connections and battery terminals. Also, consider checking for a voltage drop. See INSTALLATION INSTRUCTIONS, step #17: CHECK FOR VOLTAGE DROP (Page 3).

Check to confirm all wire connections are sound and free from corrosion. Tighten terminal block screws, inspect any fuse connections in-

battery and array.

Any solar system, when designed correctly, should provide years of reliable charging with very little user involvement. To assure

CHARGE SET-POINT ADJUSTMENT

CHARGE SET-POINT ADJUSTMENT SHOULD ONLY BE ATTEMPTED WITH CAUTION. IMPROPER CALIBRATION CAN RESULT IN BATTERY AND EQUIPMENT DAMAGE.

CAUTION

STANDARD SET-POINT:

- The standard charging set-points of the MARK/(15,20,22) will be proper for a majority of the applications, however the MARK/(15,20,22) allows field adjustment of these set-points. Caution should be used. It is a common belief that increasing a set-point up will correct an under-charged battery. In fact, this adjustment will not affect the battery level but instead will cause the battery to overcharge once the sizing problem is corrected. For under-charged batteries, refer to BATTERY PROBLEMS in the TROUBLESHOOTING section (Page 8).

14.4 volts for charge termination. Once the charging stops, the voltage will immediately drop to a lower voltage.

WHEN ADJUSTMENT IS NOT NEEDED:

An adjustment will not make the batteries charge faster.

An adjustment will not increase the output of the panels. An adjustment will not add more power to a battery that is usually undercharged.

WHEN ADJUSTMENT IS NEEDED:

batteries. These recommendations are approximate and can be influenced by specific conditions. Contact the battery manufacturer or supplier to verify proper settings.

SOME BATTERIES REQUIRE DIFFERENT CHARGING VOLTAGES: Sealed, maintenance-free and gel-cell batteries may require a lower charging voltage.

Generally, for these batteries, the controller should be set for 14.1 to 14.3 volts.

WHEN BATTERY WILL SEE PROLONGED TEMPERATURE EXTREMES: For colder areas (average temperatures below 50°F (10°C) for many weeks) the set-

point should be raised .3 volts (14.7 volts). For hotter areas (average temperatures above 90° F (32°C) for many weeks) the set-point should be lowered .3 volts (14.1 volts). Be sure to return to original settings when temperature moderates.

IN SYSTEMS WITH EITHER EXTREMELY HIGH OR LOW CHARGE RATES: Systems with very low charge rates (1 amp per 100 amp-hour of battery) should

have the set-points lowered to about 14.0 to 14.2 volts. Systems with very high charge rates (over 20 amps per 100 amp hours of battery) should increase the charging set-point to 14.8 to 15.0 volts.

PROCEDURE

1. COMPLETE BATTERY CONNECTION - Connect the battery to the MARK/(15,20,22) according to the normal installation instructions.

2. SET SWITCH TO “CHARGE SET-POINT” - Slide the front switch to the third position.

3. LOCATE ADJUSTMENT TRIMPOT - The adjustment trimpot is located on the backside of the controller on the circuit board. The adjustment pot appears as a

small, square, component with a slotted circle in the middle. (Refer to FIGURE 2 - BACK VIEW) (Page 4)

4. DETERMINE NEW VOLTAGE SET-POINT - Decide on a new voltage termination set-point. Note that changing the shut off voltage will also change the "charge resumption" set-point by an equal amount. If adjusting above 15.0 volts, check to see what the operating limits of other equipment may be, as some electrical equipment (fluorescent lights, inverter) may be damaged or not operate at voltages over 15 volts.

5. ADJUST TRIMPOT - Turning the trimpot counter-clockwise increases the set-point, clockwise decreases it. Carefully adjust the pot to change the voltage reading to the desired setting. Do not force the dial beyond the end stops.

6. MONITOR – After adjustment, monitor the batteries. For unsealed batteries: If you constantly need to add water, set-points are set too high. If you do not see/hear them boil once in a while, set-points may be too low.

An adjustment is not recommended to correct for a voltage drop in the battery connection.

Adjusting the charge set-points is recommended for certain situations which might otherwise result in under or over-charging the

MONITORING

The system operation can be monitored by the meter and the status lights.

DIGITAL DISPLAY:

POSITION - "BATTERY VOLTAGE": This displays the battery voltage. The battery voltage is a general indication of battery condition, or capacity. Battery

POSITION - "ARRAY CURRENT": This displays the amount of current flowing from the solar panels to the batteries or loads.

The solar array current reading can be used to optimize the array tilt angle by moving the array and noting when current is maximized. Consult the

POSITION - "CHARGE SET-POINT": This position displays the charge termination voltage set-point that the controller is currently set to. This setting can be

POSITION - "BATTERY VOLTAGE (bar-graph off)": This position is identical to the 1st position described above except that the battery bar-graph display is

“CHARGING” LIGHT:

through to the battery.

“CHARGED” LIGHT:

will stop and the “CHARGED” light will go on. This light will remain on until the battery voltage drops down to the charge resumption voltage.

“BATTERY” CONDITION BAR-GRAPH:

The Digital display of the MARK/(15,20,22) provides metering of four parameters, selected by a front panel slide switch.

voltage will be higher when the battery is being charged, with the increase in voltage depending on the amount of charge current. When charging stops, the voltage will immediately drop down.

For most systems, a fully charged battery that is not being charged or discharged will be at about 12.6-12.8 volts. The normal range of a 12 volt battery is about 11 to 15 volts. A voltage below 11 volts usually indicates a dead battery, and over 15 volts is almost always an over-charged battery. It is best to keep the batteries above 11.5 volts and below 14.5 volts for maximum battery life and performance.

panel supplier or literature for rated output to see what the output should be for the total number of panels in the system under ideal conditions. If the charging current seems low, refer to the SOLAR PANEL PROBLEMS section (Page 8).

used to verify the termination set-point, or for set-point adjustment. See “CHARGE SET-POINT ADJUSTMENT” section (Page 4).

turned off. Use this position if current consumption is a special concern.

The "CHARGING" light will be on when the battery is charging. When charging, virtually all the power available from the solar array will pass

The "CHARGED" light will be on when the battery is fully charged. After the battery has reached the charge termination voltage, the charging

This bar-graph provides a general indication of the battery condition.

The lights will rise and fall as the battery voltage goes up and down. During the day, the battery voltage can increase and decrease instantly as charging is turned on and off. When the battery is completely charged, the current will begin to pulse into the battery. This may cause the bar-graph lights to rise and fall rapidly.

Bar-graph after modifying set-points

Bar-graph “Dot” / Bar-graph “Bar”

Red light glow

is modified. When charging batteries with modified set-points, the terminology and colors may not be appropriate.

use a single light (“Dot”) to represent the battery condition or it can be set so all consume less current but the “Bar” setting will be brighter. To change the “Dot” or “Bar” setting, locate the “BAR-GRAPH MODE” adjustment pins on the backside of the unit. For “Dot” readings, place jumper across only one of the pins. For “Bar” readings, place the jumper across both pins.

-- Occasionally, the very bottom red light may have a slight glow to it. This is a function of the electronics and is not a problem.

GOOD - Battery can generally be considered “FULL”. The lights above usually indicate when the unit is charging.

LOW - Battery voltage is moderate to low. Use of loads should be conservative.

VERY LOW -Voltage is very low. Reduce use of loads or use additional source to charge the batteries. If continues, see

TROUBLE SHOOTING section.

OK - Battery is less than full. Capacity has dropped down but voltage is still adequate to provide power.

- The bar-graph provides a general indication of the battery condition. These lights do not adjust if the charging set-point

– The visual appearance of the bar-graph can be adjusted to meet your individual preference. The bar-graph can be set to

the lights below the value are on (“Bar”). The bar-graph “Dot” will

TROUBLE SHOOTING

These sections can assist in the troubleshooting of a solar system.

• HELP NOTES

• MARK/(15,20,22) Problems

MARK/(15,20,22) PROBLEMS chart. It will direct you to a “MARK/(15,20,22) NOTE”.

• Fuse Removal Test

• Battery Problems

PROBLEMS.

• Solar Panels Problems

: - lists some common problems with a solar system.

: - If a problem is suspected based on the observations of the MARK/(15,20,22) controller, find the condition on the

: - provides a simple test to confirm operation.

: - If you feel your batteries are not being adequately charged or are consistently being over-charged, refer to the section BATTERY

: - If you feel that the solar panels are not performing adequately, refer to the section SOLAR PANEL PROBLEMS.

HELP NOTES: Normal Conditions and Common Problems

NORMAL CONDITIONS:

1. “ALWAYS CHARGING” or “NEVER CHARGING” - Depending on your system, it may be normal for the MARK/(15,20,22) to go for long periods of constant charging or long periods with no charging. The function of the MARK/(15,20,22) is to prevent over-charging of the battery. Therefore, it will charge continuously when the battery voltage is low and stop all charging as long as the battery voltage is high.

2. BATTERY WATER LOSS - It is normal for unsealed batteries to need some water from time to time. Minor water loss is not a problem; just add to the top level when needed. Excessive water loss (a quart or more in a period of a month depending on battery size) may indicate a more serious problem.

3. BATTERY GASSING - In vented batteries, some gassing is good. Gassing stirs up the battery acid and allows the battery to fully charge. A little bubbling in the batteries is not necessarily a problem. Refer to BATTERY WATER LOSS above.

4. TEMPERATURE - Temperature can affect the performance of batteries. They will tend to over-charge easier when hot, and will not have as much capacity when cold. Temperature can also affect the performance of the solar panels. The charging current can be substantially higher in cold conditions. When sizing the system, consider the current at cold conditions. Most panel specifications include a temperature chart.

PROBLEM CONDITIONS:

5. SYSTEM IS NOT SIZED CORRECTLY - The system batteries will tend to be under-charged if the solar array is too small, or if the battery bank is too small, or if the usage is too high. Some systems contain small hidden loads that can slowly draw down the battery.

6. PROBLEMS WITH SOLAR PANELS - Solar panel output is dependent upon the amount of sun-energy reaching the panel. This can be seriously affected by the angle of the panel and sun (as in winter months), minor shading, high level haze (barely visible) and dust on the panel. At the time of installation, a solar array can have an incorrect series-parallel configuration for the proper system voltage and current. A panel can also become less productive or defective over time. TEST: Disconnect the MARK/(15,20,22) from the panel, and measure the voltage at panel(+) and panel(-). In sunny conditions, this should be 1824 volts. A lower value may indicate a problem with the panel. To check the panel’s current output, contact a local solar dealer.

7. PROBLEMS WITH BATTERIES - At the time of installation, a battery bank can have an incorrect series-parallel configuration for the proper system voltage and current. A battery can also go bad and be unable to maintain a charge. If the battery is going bad, a little charging or discharging will cause a large change in the battery voltage. Also, a shorted battery cell will cause the battery to gas heavily and the system will charge constantly will no notable increase in voltage. If the condition of the battery is suspect, a battery capacity test is recommended.

8. BAD CONNECTION: PANEL - The solar panel connection to the controller may be weak or completely out. Problems can be found at the MARK/(15,20,22) connection (ARRAY(+) & ARRAY(–) terminals), both panel connections (“+” or “–”), the Array Fuse on MARK/(15,20,22) (either blown or defective), or fuses and unsoldered crimp connectors in these lines. Also, wire that is too small for the length of the run may cause a problem. Refer to INSTALLATION INSTRUCTIONS, step #17: CHECK FOR VOLTAGE DROP (Page 3).

9. BAD CONNECTION: BATTERIES - The battery connection to the controller may be weak or completely out. The MARK/(15,20,22) needs to read an accurate battery voltage to regulate the charging correctly. Therefore, you need to minimize the voltage drop from the battery. Problems can be found with the MARK/(15,20,22) connection (BATT(+) and BATT(–) terminals), both battery terminals (“+” or “–”), the Battery Fuse on MARK/(15,20,22) (either blown or defective), or fuses and unsoldered crimp connectors in these lines. Also, small wire or incorrect wiring may cause a voltage drop. Refer to INSTALLATION INSTRUCTIONS, step #12: MARK/(15,20,22) CONNECTION (Page 3) and step #17: CHECK FOR VOLTAGE DROP (Page 3).

10. CONTROLLER MISWIRED - This may include reversing the polarity from the panels or batteries, or switching the array and battery connections. This may also include a deviation from the wiring instructions, such as using a jumper across the BATTERY(-) & ARRAY(-) connections or by having your battery(–) connection run to a frame or chassis and not the actual battery itself. Refer to INSTALLATION INSTRUCTIONS, step #12: MARK/(15,20,22) CONNECTION (Page 3).

11. INCORRECT VOLTAGE SET-POINT - The MARK/(15,20,22) may be functional but the charge termination set-point may not be correct for your batteries. The factory set-point is 14.4 volts and is designed to work for the majority of batteries. Set the front panel switch position to “CHARGE SETPOINT” and verify set-point. Refer to the ‘CHARGE SET-POINT ADJUSTMENT” section (Page 4) and consider if an adjustment may be necessary.

12. SYSTEM NOISE - The MARK/(15,20,22) can be affected by electrical noise from a converter or inverter. This will not affect the charging function but will cause erratic meter readings. If the MARK/(15,20,22) is connected to a buss that is connected to a converter, try connecting the MARK/(15,20,22) directly to the battery instead.

13. CONTROLLER DEFECTIVE - The MARK/(15,20,22) may no longer be functional. A defective unit can overcharge the battery or stop all charging. A faulty unit can not drain a battery. It may have been exposed to high voltage or current, reverse polarity from the batteries or other wiring problem.

MARK/(15,20,22) PROBLEMS: - Refer to this chart and the MARK/(15,20,22) PROBLEM CASES to help

diagnose problems based on the MARK/(15,20,22) readings.

CASE

2 → 3 → 4 → 5 → 6 → 7 → 8 → 9 →

10 →

11 →

12 →

13 → 14 → 15 → 16 →

BATTERY VOLTAGE

READING

ARRAY CURRENT

READING

YELLOW

CHARGING

LIGHT

Display blank Display blank

10-13 00.0 OFF

12.0-14.7 00.0 ON ON

13-14.7 00.0 ON

14.7 - 22.0 ON

ON at night

Reading changing rapidly Reading changing rapidly May be flashing May be flashing

Bad Display Readings Bad Display Readings

Voltage reading higher than

actual battery voltage

Current less than expected

Changes to ON or

OFF

GREEN

CHARGED

LIGHT

Changes to ON or

OFF

OTHER

Night only

Day

Night

Day

Day – When fuse is removed

Day -MARK/(15,20,22)

MARK/(15,20,22) hot

Bar-Graph off

Fuse keeps blowing

MARK/(15,20,22) PROBLEM NOTES (from MARK/(15,20,22) PROBLEMS chart)

MARK/(15,20,22) Note 1 - A display blank both day and night may indicate…

• A bad connection exists to the solar panel (See BAD CONNECTION: PANEL (Help Note #8)) and CONNECTION: BATTERY (Help Note #9)) or the battery is low in voltage (the meter requires 10 volts to operate).

• The MARK/(15,20,22) is defective. See CONTROLLER DEFECTIVE (Help Note #13).

MARK/(15,20,22) Note 2

: - A display that is only blank at night may indicate…

• A bad connection exists to the battery. See BAD CONNECTION: BATTERY (Help Note #9).

• A blocking diode or diode isolator exists in the battery connection. If there is a blocking diode, remove it. If there is a diode isolator, modify the system so

the MARK/(15,20,22) charges only one battery bank.

MARK/(15,20,22) Note 3

- A low voltage condition with no daytime charging may indicate…

• The system has no panel input. See BAD CONNECTION: PANEL (Help Note #8)

• The charge set-point has been set very low. See INCORRECT VOLTAGE SET-POINT (Help Note #11)

• The MARK/(15,20,22) is defective. See CONTROLLER DEFECTIVE (Help Note #13).

TEST: Perform the BATTERY FUSE REMOVAL TEST (Page 8)

MARK/(15,20,22) Note 4

- The “CHARGING” and “CHARGED” lights on, is caused by a bad battery connection. See BAD CONNECTION: BATTERY (Help

Note #9).

MARK/(15,20,22) Note 5

- The “CHARGING” light on with 00.0 amps from the array may indicate…

• A condition exists of very low levels of light to the panels

• A system problem. This would be a panel, connection or wiring problem. Often, this happens when the negative connections from the array and battery

are connected. Refer to INSTALLATION INSTRUCTIONS, step #12: MARK/(15,20,22) CONNECTION (Page 3)

• The MARK/(15,20,22) is defective. See CONTROLLER DEFECTIVE (Help Note #13).

TEST: Perform the BATTERY FUSE REMOVAL TEST (Page 8)

MARK/(15,20,22) Note 6

- High voltage with the “CHARGING” light on may indicate…

• A bad connection exists to the battery. See BAD CONNECTION: BATTERY (Help Note #9).

• The charge set-point is set very high. See INCORRECT VOLTAGE SET-POINT (Help Note #11)

• The MARK/(15,20,22) is defective. See CONTROLLER DEFECTIVE (Help Note #13).

TEST: Perform the BATTERY FUSE REMOVAL TEST. (Page 8)

MARK/(15,20,22) Note 7

The "CHARGING" light on brightly

- The "CHARGING" light can be on (bright to dim) at night if the panels are under even very low levels of light (moonlight or street lights). at night may also indicate…

• The unit is mis-wired. Refer to INSTALLATION INSTRUCTIONS, step #12: MARK/(15,20,22) CONNECTION (Page 3).

• There is a blocking diode located within the solar panels or in the panel connection. This is not a serious problem, but should be removed if possible.

• The MARK/(15,20,22) is defective. See CONTROLLER DEFECTIVE (Help Note #13).

TEST: Disconnect the panel (ARRAY (+)), if the light goes off, then it may be possible that the panel is receiving enough light for a slight charge, or a diode exists

in the connection.

MARK/(15,20,22) Note 8

– The display readings and status lights changing rapidly may indicate…

• A normal condition. If the battery is fully charged and the array has a lot of additional charge current, the controller can pulse on and off rapidly, especially when current is being used by a load. This is OK.

• A bad connection exists to the battery. See BAD CONNECTION: BATTERY (Help Note #9).

• A problem exists with the battery. The battery bank is bad or too small. See PROBLEMS WITH BATTERIES (Help Note #7)

TEST: Take an accurate voltage reading at the battery. If this voltage reading stays steady while the reading on the MARK/(15,20,22) goes up and down,

then suspect a bad battery connection. If the voltage here also moves up and down rapidly, this would indicate either a normal condition or a battery problem.

MARK/(15,20,22) Note 9

- Bad display readings may indicate…(display issues don’t affect the charging functions)

• System noise. Digits are OK, but the readouts are erratic. See SYSTEM NOISE (Help Note #12)

• A Defective unit. Digits are OK, erratic readouts and a correlation to high humidity exists.

• A Defective unit. If the quality of the digits are bad with missing segments or black background areas.

MARK/(15,20,22) Note 10

- A voltage reading that is a lot higher than the actual battery voltage is caused by a bad battery connection. Somewhere it could be

corroded or loose. If you rechecked at night or disconnect the panel, the difference should go away. See BAD CONNECTION: BATTERY (Help Note #9).

MARK/(15,20,22) Note 11

- If the charge current seems too low for your panels, refer to SOLAR PANEL PROBLEMS section (Page 8). Also, check to see that

there is not an alternative path from the solar panel negative to the battery negative other than through the MARK/(15,20,22).

MARK/(15,20,22) Note 12

- The charge control circuit will reset when power is removed. Removing and replacing the battery fuse will momentarily lose power to the

control circuit, causing it to reset. It will usually reset “CHARGING”. This is normal and does not indicate a problem.

the battery has either a bad connection (See BAD

MARK/(15,20,22

) NOTE

(Below)

See Note 1

See Note 2

See Note 3

See Note 4

See Note 5

See Note 6

See Note 7

See Note 8

See Note 9

See Note 10

See Note 11

See Note 12

See Note 13

See Note 14

See Note 15

See Note 16

MARK/(15,20,22) Note 13 - The buzzing sound is caused by the controller rapidly switching on and off and is caused by a bad battery connection

or a blown battery fuse. See BAD CONNECTION: BATTERY (Help Note #9).

MARK/(15,20,22) Note 14

gets very warm. If the unit should get too hot to touch, it may be defective. See CONTROLLER DEFECTIVE (Help Note #13).

MARK/(15,20,22) Note 15

is below 10.5 volts, the bar-graph will not light.

MARK/(15,20,22) Note 16

- The MARK/(15,20,22) may get warm during normal operation. When operating near maximum ratings, the front plate

– If the bar-graph goes off, confirm that the slide switch is set to the top position. Also, look at the battery voltage. If it

– If the fuses continuously blow, refer to ARRAY & BATTERY FUSE section (Page 4).

Battery Fuse Removal Test - (checks operation)

This test temporarily removes the battery connection to the MARK/(15,20,22). The new voltage display will indicate if the unit is working properly. Note:

when the fuse is removed, it is normal for the front lights to both go on and to hear a faint buzzing. Remember to replace the fuse immediately after testing.

Procedure: During a sunny period when the battery voltage is over 10 volts, remove the BATTERY fuse (bottom fuse). Note the "BATTERY VOLTAGE" reading.

Compare the reading to the options below.

• VOLTAGE READS FROM 10.0 TO 15.0 VOLTS

Now, again note the value. Did the value change ?

• VOLTAGE: 10 - 15V. AND

indicates the MARK/(15,20,22) may not be connected to the battery. See BAD CONNECTION: BATTERY (Help Note #9).

• BATTERY VOLTAGE READING IS BLANK

defective. If possible, perform this step. Disconnect the array(+) connection at the MARK/(15,20,22). With a volt meter, measure the voltage of the array by measuring the array wires where they meet the MARK/(15,20,22).

• VOLTAGE DISPLAY BLANK AND

connection. See PROBLEMS WITH SOLAR PANELS (Help Note # 6) and BAD CONNECTION: PANEL (Help Note #8).

• VOLTAGE DISPLAY BLANK AND

ARRAY fuse or the MARK/(15,20,22) is defective. See CONTROLLER DEFECTIVE (Help Note #13).

• VOLTAGE READING IS GREATER THAN 16.0 VOLTS

which is usually about 16-22 volts. See CONTROLLER DEFECTIVE (Help Note #13).

CHANGES WITH FUSE REMOVAL - This is the correct reaction and the unit is working properly.

READING DOES NOT CHANGE WITH FUSE REMOVAL - If the meter stays the same before and after removing the fuse, this

ARRAY VOLTAGE AT MARK/(15,20,22) IS ZERO - This indicates that there is a problem with the array or array

ARRAY VOLTAGE GREATER THAT 16V. - This indicates that the array is OK but the MARK/(15,20,22) has a bad

- If the new reading is in this range, perform another step. Note the exact voltage value. Replace the fuse.

- If the meter is blank, this means that the solar array is bad or disconnected or that the MARK/(15,20,22) is

- This would indicate that the MARK/(15,20,22) is defective. The meter is displaying the panel voltage,

SOLAR PANEL PROBLEMS: - Refer to this section to help diagnose problems based on panel performance.

CASE PANELS SEE NOTE(S)

1 → 2 →

Panel Note 1

all conditions are ideal. If the panel performance as measured on the MARK/(15,20,22) controller is much lower, consider the following…

• Solar Panels Problem - Panels are dirty, not aligned or other problem. See if the "ARRAY CURRENT" reading improves after cleaning the panels and

• Bad Connection to the Solar Panel - See BAD CONNECTION: PANEL (Help Note #8).

• Temperature Issues – Panel performance varies with temperature (better when cold). See TEMPERATURE (Help Note #4 )

Panel Note 2

PROBLEMS WITH SOLAR PANELS (Help Note #6). Once a solar panel is connected to a battery, the panel voltage will immediately drop down to match the battery voltage. This Is normal.

Less charge current than expected See Panel Note 1 Less voltage than expected See Panel Note 2

- The panels should generate a charge close to their rated short circuit current as presented in their specifications. To reach this level assumes that

adjusting their orientation. Locate the panel where no shadows will cross it. See PROBLEMS WITH SOLAR PANELS (Help Note #6).

- Ideally, a disconnected solar panel should measure 18-24 volts. A lower voltage, under ideal conditions, may indicate a defective panel. See

BATTERY PROBLEMS: - Refer to this section to help diagnose problems based on battery observations.

CASE BATTERY SEE NOTE(S)

1 → 2 →

Battery Note 1 - BATTERY OVER-CHARGING: If there is evidence that the batteries have been over-charging, consider the following…

• Normal Battery Condition: The batteries may not be over-charging but only be experiencing normal water loss and normal levels of gassing. Check the

• Controller Problem: The MARK/(15,20,22) could be defective. Perform the FUSE REMOVAL TEST (Page 8). Determine if the MARK/(15,20,22) is working

• Batteries Need Lower Set-point: The batteries may require a lower full-charge voltage. Refer to INCORRECT VOLTAGE SET-POINT (Help Note #11).

• Other Charging Sources: Another charging source could be the cause. If the MARK/(15,20,22) is not charging, the overcharging may be from another source.

• A Hot Battery - Hot temperatures can affect the battery charging. A hot location for batteries will tend to over-charge the batteries. See TEMPERATURE (Help

Battery Note 2

• System not sized correctly - See Help Note #5. For too much usage, try charging the battery with another charging source (engine alternator, generator or

• Solar Panels Problem - Panel may be dirty, not aligned or other problem. See PROBLEMS WITH SOLAR PANELS (Help Note #6)

• Bad Connection – A bad connection can reduce the charge. See BAD CONNECTION: PANEL and BATTERIES (Help Notes #8 & #9)

• MARK/(15,20,22) Controller Problem - Perform the FUSE REMOVAL TEST (Page 8). Also, refer to the MARK/(15,20,22) PROBLEM section. Examine

• A Bad Battery - The batteries may be going bad. See PROBLEMS WITH BATTERIES (Help Note #7).

• A Cold Battery - Cold temperatures can affect the battery charging. If the battery is cold much of the time, the battery’s long-term performance and life may

Seems to be over-charging See Battery Note 1 Does not fully charge batteries (or) Does not hold a charge See Battery Note 2

“BATTERY VOLTAGE” reading. Normal battery voltage for a wet cell battery can be up to 14.6 volts. See BATTERY WATER LOSS and GASSING (Help

Notes #2 and #3)

properly. Check for INCORRECT VOLTAGE SET-POINT (Help Note #11)

Some 110 volt battery chargers are not well regulated and could over-charge batteries if left unattended.

Note #4).

- BATTERY UNDER-CHARGED: If the battery voltage is often low or the battery voltage drops fast after charging, consider the following…

AC battery charger). If the batteries charge OK and hold the charge, an increase in the number batteries and panels may be needed to support the usage.

the readings from the MARK/(15,20,22) meter to see if they indicate a problem.

suffer. See TEMPERATURE (Help Note #4).

(1 of 4 )

Mounting Holes

(1 of 4 )

Cutout Outline

Cutout Corner Holes

(for flush mounting)

(15,20,22) TEMPLATE

MARK

Mounting fasteners of appropriate type for wall material

Included are four 3/4 - #6 screws and a spare fuse (20 amp AGC for the MARK/15). (25 amp AGC for the MARK/20,22).

Drill with 3/32" and 3/8" bits 1/2 inch Romex strain relief clamps

TOOLS AND MATERIALS NEEDED:

Slotted screwdriver, Wire cutter/strippers, Keyhole saw or saber saw, Pencil, scratch awl or other marker

Also for Flush Mounting: Also for wall mounting: (MARK/(15,20,22) with 4X7 BOX):

Wire of proper gauge to run from the panels, to the MARK/(15,20), and to the battery (See INSTALLATION INSTRUCTIONS #6: WIRE TYPE / SIZE)

Installation steps:

1. Tape template to surface where the MARK/(15,20,22) is to be installed.

2. Punch “Mounting Holes” and “Cutout Corner Holes” with nail or awl.

3. Remove template. Drill “Cutout Corner Holes” with 3/8” drill. Drill “Mounting Holes” with 3/32” drill.

4. Connect outside edge of “Cutout Corner Holes” with a pencil line.

5. Use suitable saw to cut along pencil line.

6. Make electrical connections. (Refer to instruction manual)

7. Mount the MARK/(15,20,22) to wall using supplied wood screws or other appropriate hardware.

FAX: (818) 998-5253

SPECIALTY CONCEPTS, INC.

LIMITED FIVE YEAR WARRANTY

A. Misuse and/or abuse, neglect or accident.

B. Exceeding the unit's design limits.

C. Improper installation, including, but not limited to, improper environmental protection and improper hook-up.

D. Acts of God, including lightning, floods, earthquakes, fire and high winds.

E. Damage in handling, including damage encountered during shipment.

workmanship for the five (5) year warranty period. It is not valid against defects resulting from, but not limited to:

1. Specialty Concepts, Inc. warrants all its products for a period of five (5) years from the date of shipment from its factory. This warranty is valid against defects in materials and

2. This warranty shall be considered void if the warranted product is in anyway opened or altered. The warranty will be void if any eyelet, rivets, or other fasteners used to seal the unit are

claims for such equipment, where appropriate.

electronic enclosure. The time limit for this warranty may be for less than the Specialty Concepts limited warranty. Specialty Concepts will assist the claimant in attempts to seek warranty

removed or altered, or if the unit's serial number is in any way removed, altered, replaced, defaced or rendered illegible.

3. The five (5) year term of this warranty does not apply to equipment where another manufacturers' warranty is available. An example of such equipment may be, but is not limited to, an

REPAIR INFORMATION

evaluation must be returned freight prepaid to Specialty Concepts with a written description of any apparent defects. Specialty Concepts will not be

Specialty Concepts products are compatible.

property damage resulting from the use of Specialty Concepts' products or the improper operation thereof or consequential damages arising from the products or use of the products.

batteries, and system interconnects, and such loads as inverters, transmitters, and other loads which produce "noise" or electromagnetic interference, in excess of the levels to which

5. Specialty Concepts cannot guaranty compatibility of its products with other components used in conjunction with Specialty Concepts products, including, but not limited to, solar modules,

4. Specialty Concepts cannot assume responsibility for any damages to any system components used in conjunction with Specialty Concepts products nor for claims for personal injury or

required at any time to visit the installation site wherein Specialty Concepts' products are subject to warranty repair and/or evaluation.

6. Warranty repair and/or evaluation will be provided only at Chatsworth, California facility of Specialty Concepts. Units for such repair and/or

is responsible for proper packaging and for shipping and insurance charges, as well as any other charges encountered, in shipping to and from Specialty Concepts.

8. This warranty supersedes all other warranties and may only be modified by statement in writing, signed by Specialty Concepts.

Warranty terms effective as of April 1, 1993

7. Only Specialty Concepts is authorized to repair any of its products, and they reserve the right to repair or replace any unit returned for warranty repair. The party returning a unit for repair

PLEASE NOTE THAT THE MAJORITY OF UNITS RETURNED TO US FOR REPAIR ARE FOUND TO BE IN PERFECT WORKING ORDER. IN THESE CASES, THE PROBLEM

USUALLY LIES SOMEWHERE ELSE WITHIN THE SYSTEM. PLEASE CHECK ALL OTHER SYSTEM COMPONENTS (INCLUDING FUSES) AND WIRING BEFORE RETURNING THE

UNIT FOR REPAIR. CONTACT YOUR PROFESSIONAL SOLAR DEALER IF YOU NEED ASSISTANCE.

Specify amount of repair charges pre-approved (we will contact you if repair charges are larger than this amount.)

Directions for returning units needing repair.

1. Write up a note with the following information:

Name / Company Name

Return Address: (For USA/Canada: UPS Deliverable. Avoid PO Boxes)

Daytime Phone

Description of the failure

2. Box up unit with copy of sales receipt (if available).

3. Send by UPS or Parcel Post to : Specialty Concepts, Inc.

Attn : Repair Dept.

8954 Mason Ave

Chatsworth, CA 91311 USA

PECIALTY CONCEPTS, INC.

8954 MASON AVE., CHATSWORTH, CA 91311 USA WWW.SPECIALTYCONCEPTS.COM

YOU DO NOT NEED AN RMA OR OTHER AUTHORIZATION TO RETURN A UNIT FOR REPAIR. SIMPLY SEND IT TO US POST PAID.

If the Repair is not covered under warranty, the repair charges will not exceed 30% of the value of a new unit. (shipping and handling not included) Domestic charges are collected via UPS-COD .

For non-warranty repairs, repaired portion features an additional one-year warranty.

Specialty Concepts MARK-22 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual