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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 46001

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 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 ag...

Page 4: ...E 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 replacing to prevent damage to the motor NOTE The EC Max is mounted using a belly band mount The mount is not provided If the replaced motor used a belly band and was a NEMA 48 Frame motor the original bell...

Page 5: ...inuous 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 nut LOW VOLTAGE SIGNAL CONNECTIONS Note All LOW VOLTAGE SIGNAL wires are taped together and flagged for identification Connect the Blue LOW VOLTAGE SIGNAL wire to the thermostat common terminal or dir...

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

Page 7: ...Red 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 VOLTAGE POWER wire in the previous step Insulate the Black HV1 HIGH VOLTAGE SIGNAL wire with a wire nut Note This wire can be connected to the same terminal as the L1 HIGH VOLTAGE POWER connection in th...

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 selection to the motor These are 24vac inputs The low voltage signal inputs are programmed with a hierarchy If more than one input is energized at the same time the higher tap value speed value will be ...

Page 10: ...anent 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 fan relay outputs from the HVAC system control board or fan relay s ...

Page 11: ...ts 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 accomplished with the following steps Turn off the power to the HVAC system Leave the HIGH VOLTAGE POWER wires connected Connect both the Black and Red HV1 HV2 HIGH VOLTAGE SIGNAL WIRES to the same L...

Page 12: ...769 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 replace Constant Torque ECM ...

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 incidental or other damages 3 For products other than those listed below please MAIL the original nameplate label or sticker for each item Copies of labels will NOT be accepted Please do NOT fax or email lab...

Page 14: ...MED 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 Hp DIM A 11 26 DIM B 6 34 1 2 Hp DIM A 11 26 DIM B 6 34 3 4 Hp DIM A 12 76 DIM B 7 84 1 Hp DIM A 12 76 DIM B 7 84 Shaft 5 x 5 4 5 single flat Mounting Belly band not supplied Harness Lead length 48 ...

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

Page 16: ...te 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 85226 Packard supplies to wholesale distribution only PACKARDONLINE COM ...

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