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Safety Considerations 

Safety 

Symbols 

The following definitions are used a safety considerations on EC Max and in 

this manual. Please read and observe all of these safety concerns. 

Installation and service of this motor should be attempted only by trained service 

technicians familiar with EC Max instructions and training manual.

EC Max is a multi-purpose replacement indoor blower motor. Proper wiring is 

critical to provide proper operation and maintain the proper operation of all safeties 

built into the HVAC system.

Always disconnect the main power from the unit being serviced before making any 

wiring connections to EC Max. It is also a good practice to confirm that the power 

is off with a meter.

EC Max is a multi-volt capable motor. Read all instructions and install the proper 

jumper for the line voltage before applying power to this motor.

Use of the wires provided in this kit is recommended. Should additional wires be 

needed, use equivalent size wire gauge and rated insulation. 

Improper installation, adjustment, alternation, service, maintenance, or use can 

cause explosion, fire, electrical shock, or other conditions which may cause 

personal injury, death, or property damage. Consult a qualified installer, service 

agency, or your distributor or branch for information or assistance. The qualified 

installer or agency must use the supplied or recommended parts when installing 

or servicing this product. 

                            

Warning indicates 

a hazardous situation which, if 

not avoided, could result in 

death or serious injury. 

Caution indicates 

a hazardous situation which, if not 

avoided, could result in minor or 

moderate injury.

This motor should be installed in accordance with accepted practices and 

installation instructions, and in compliance with all national and local codes. 

CAUTION

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Summary of Contents for Ec Max

Page 1: ...Electronically Commutated Motor Wiring Manual R 0 G 105 B 62 00693e GREEN SPECS R 0 G 0 B 0 000000 BLACK SPECS FONT Arial Bold...

Page 2: ...packardonline com 800 334 1769 2 Table of Contents Safety Considerations 3 Application Guide 4 5 6 7 8 Operational Characteristics 9 10 11 12 Diagnostics Maintenance Warranty 13 Specifications 14...

Page 3: ...applying power to this motor Use of the wires provided in this kit is recommended Should additional wires be needed use equivalent size wire gauge and rated insulation Improper installation adjustment...

Page 4: ...In this manual there are two sets of instructions One for replacing PSC motors and one for replacing Constant Torque ECM Please make sure to use the correct instructions for the motor you are replaci...

Page 5: ...nuous Fan if applicable that were previously connected to the PSC motor Use the supplied jumper wires and terminals or wire nut all together Insulate the Red HV2 HIGH VOLTAGE SIGNAL wire with a wire n...

Page 6: ...packardonline com 800 334 1769 6 Using EC Max to replace PSC Permanent Split Capacitor induction motors...

Page 7: ...ed HV2 HIGH VOLTAGE SIGNAL wire to a L1 line voltage power source that is continuously powered when the unit disconnect is closed This wire can be connected to the same L1 source as the Black HIGH VOL...

Page 8: ...packardonline com 800 334 1769 8 Using EC Max to replace Constant Torque ECM...

Page 9: ...itself When the Red wire is energized the LOW VOLTAGE SIGNAL wires provide both the ON OFF command for the motor and determine the output level speed The LOW VOLTAGE SIGNAL wires provide the speed sel...

Page 10: ...nent Split Capacitor induction motors Example connection using the optional Y adapter when replacing PSC motors Using EC Max to replace Constant Torque ECM Example connection of one speed to multiple...

Page 11: ...s life It will never perform this function again If this is not the correct direction it can be reversed Changing the rotation of the motor after it has selected a rotation using the process above is...

Page 12: ...69 12 Wiring diagram for changing the rotation of the motor Using EC Max to replace PSC Permanent Split Capacitor induction motors Wiring diagram for changing the rotation of the motor Using EC Max to...

Page 13: ...purpose Buyer acknowledges that it alone has determined that the goods purchased will suitably meet the requirements of their intended use In no event will Packard be liable for consequential incident...

Page 14: ...ED HI HI Rotation CW or CCW automatically configured Bearing Ball Ambient Rating 40 C Enclosure Open Air Over OAO Frame size and dimensions NEMA 48 Frame 5 6 diameter see diagram below for DIM A B 1 3...

Page 15: ...packardonline com 800 334 1769 15...

Page 16: ...e Headquarters and Main Distribution Center 2700 Barrett Lakes Blvd NW Suite 100 Kennesaw GA 30144 Distribution Centers 2570 N Shadeland Ave Suite 103 Indianapolis IN 46219 6151 W Erie St Chandler AZ...

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