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PulseTech 746X920, Installation Manual, Page: 1 / 13

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INSTALLATION MANUAL

For Model PT20 Charge Controller

PT20 Charge Controller

Model: PT20

Part #: 746X920

Input: DC12V or DC24V solar panel array (Max 50Voc)

Output: DC 12V 20A

DC 24V 20A

User Manual

What comes in the box:

1 each: PT20 Charge Controller
1 each: User Manual  
1 each: Temperature Sensor (2.9m in length)  
1 each: Fused Battery Harness (3m in length)  
1 each: Solar Input Adapter (allows bare wire  
 

connection to solar input)

PT20_PWM_Manual_v6.indd   1

PT20_PWM_Manual_v6.indd   1

6/16/20   8:50 AM

6/16/20   8:50 AM

Summary of Contents for 746X920

Page 1: ... Output DC 12V 20A DC 24V 20A User Manual What comes in the box 1 each PT20 Charge Controller 1 each User Manual 1 each Temperature Sensor 2 9m in length 1 each Fused Battery Harness 3m in length 1 each Solar Input Adapter allows bare wire connection to solar input PT20_PWM_Manual_v6 indd 1 PT20_PWM_Manual_v6 indd 1 6 16 20 8 50 AM 6 16 20 8 50 AM ...

Page 2: ...Important Installation Notes Please Read 5 Device Connections 6 Button 6 Installation Guide 12 Volt and 24 Volt 6 12 Volt Installation Specifics 7 24 Volt Installation Specifics 7 5 PulseTech Functionality 8 6 Charging Profiles 9 7 LED Operation 10 8 Troubleshooting 11 9 Specifications 12 10 Contact Us 13 Figure 1 PT20 Side View Figure 2 PT20 Top View PT20_PWM_Manual_v6 indd 2 PT20_PWM_Manual_v6 i...

Page 3: ...ns Always install a battery fuse 25 amp recommended between the battery and the solar controller See Wiring and Installation section for more details on fusing Be very careful not to connect the wires to the solar panel or battery in reverse Do not disassemble the controller Please contact PulseTech Customer Service if you have any problems with your device at 800 580 7554 or ppc pulsetech net Dev...

Page 4: ...mp Pulse Width Modulation PWM Solar Charge Controller 2 Charge 12 volt and 24 volt battery systems using 12 volt or 24 volt solar panels 3 Preprogrammed battery charging profiles selectable using built in button a AGM WET and GEL lead acid type batteries b Lithium battery profile to be used for Lithium Iron Phosphate and Lithium Ion batteries c Press and hold button to change between profiles 4 Pu...

Page 5: ...ery or connect it to the positive battery post Do not use the temperature sensor for Lithium batteries 6 Immediately after connecting the battery to the charge controller use the button to change the battery profile Do this before connecting your solar panels to the device 7 Put the device in a well ventilated area Battery harness Solar Input ATP Plug w 6 12 AWG with butt splices 7 Maintain a The ...

Page 6: ...on the positive output of each solar panel to protect your solar panel All Zamp Solar Panels have a fuse built into the harness Button Use the button that says Press Hold to change the active battery profile Press and hold the button for 2 seconds until the battery type LEDs begin cycling When the LED next to the battery type you would like illuminates lights release the button Ensure that the bat...

Page 7: ...allation Specifics Table 1 12 Volt Installation Quick Information Maximum Nominal Panel Wattage 400W 20A lsc Battery to Charge Controller Wire Size 12 AWG Battery to Charge Controller Fuse Size 25A Battery to Charge Controller Wire Length MAX 9 84 ft 3m included Solar Panel to Charge Controller Wire Size 12 AWG Solar Panel to Charge Controller Wire Length MAX 15 ft Solar Panel Configuration Parall...

Page 8: ...y controlled by microprocessors It rises rapidly in less than one microsecond to its maximum amplitude and gradually returns to zero There is no abrupt stop and no battery drain This waveform occurs 25 000 times a second and has been proven to remove sulfation from the battery plates and return the lead sulfate back to the electrolyte solution For more detailed information visit the website here h...

Page 9: ...iIon Soft Charge Voltage 8V 10V BMS Lower Cutoff 10V 1 Soft Charging Current 4A 2A for 24V Bulk Charge Voltage 10V Absorption Voltage Bulk Charge Current Max current available up to 20A Absorption Charge Voltage 14 6V 14 1V 14 7V 14 4V Absorption to Float Condition 1 Charging current drops below 1A or 2 Charger has been in absorption mode for 4 hours Float Charge Voltage 13 6V 13 3V 13 4V No Float...

Page 10: ... PulseTech Pulsing Technology is active and pulsing Off Pulsing is off 12 Volt LED This LED is lit if the device detects a 12V battery Solid Green System voltage is 12V Off System voltage is 24V 24 Volt LED This LED is lit if the device detects a 24V battery Solid Green System voltage is 24V Off System voltage is 12V Battery Type LEDs These LEDs indicate the active battery type Only one will be on...

Page 11: ...en and orange This may look like an error but it is not The two colors of the LED represent 2 charging states that are being encountered quickly due to the behavior of the charger Orange occurs when the device enters Bulk mode in an attempt to charge using the available sun Since the sun is weak during dusk and dawn there is not sufficient current to cause the device to continue charging and thus ...

Page 12: ... at the end of 10cm 12AWG wire for Battery input Small Female JWPF for External Temperature Sensor Input at the end of a 10cm 26AWG wire Humidity non condensing Max 98 Battery Temperature Sensor Use for Lead Acid AGM batteries only Included with device Tape to Battery for accurate temperature compensation For lead acid AGM battery types during charging Min Max Operating Ambient Temperature Range 3...

Page 13: ...10 Contact Us PulseTech Products Corporation 1100 S Kimball Ave Southlake TX 76092 9009 ppc pulsetech net www pulsetech net Toll Free 800 580 7554 PT20_PWM_Manual_v6 indd 13 PT20_PWM_Manual_v6 indd 13 6 16 20 8 50 AM 6 16 20 8 50 AM ...

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