Specialty Concepts MARK/22 User Manual
Specifications, Recognized by underwriters laboratories (ul), Installation and instruction manual for the

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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.
F E A T U R E S
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
FEATURES
• Digital Voltage and Current – Accurate readout for battery and solar panels
• Status Lights – Colored Battery condition bar-graph with “CHARGING” and
“CHARGED” lights
• 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
against condensation.
SYSTEM COMPATIBILITY
• Minimum RF Noise – Low switching frequency minimizes electronic noise
• Protection from External RF Noise – Can operate with noisy inverters
Copyright 11/2002-A Specialty Concepts, Inc.
Specifications
PARAMETERS UNITS
MARK/15-12
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 + .2
Charge Termination, Adjustable Range (2)
Volts
13.6 – 15.3
Charge Resumption, Factory Set (2)
Volts
13.0 + .2
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.
Recognized by Underwriters Laboratories (UL)
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.
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