® Electronically Commutated Motor Wiring Manual FONT: Arial Bold GREEN SPECS R: 0 G: 105 B: 62 #00693e BLACK SPECS R: 0 G: 0 B: 0 #000000
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 2 packardonline.com | 800.334.
Safety Considerations CAUTION The following definitions are used a safety considerations on EC Max and in this manual. Please read and observe all of these safety concerns. Safety Symbols WARNING CAUTION Caution indicates Warning indicates a hazardous situation which, if not a hazardous situation which, if avoided, could result in minor or not avoided, could result in moderate injury. death or serious injury.
Application Guide EC Max can be used in the following applications • Residential and light commercial HVAC split system (Air Handler and Fossil Fuel Furnace) units and Package Units; • Indoor direct drive blower motors; • Replace original equipment PSC (Permanent Split Capacitor) induction motors; • Replace original equipment Constant Torque ECM (Electronically Commutated Motor) such as the genteq X13 and Endura Pro, or similar model motors with 24vac speed taps.
Using EC Max to replace PSC (Permanent Split Capacitor) induction motors. • Install motor in HVAC system using a belly band mount. • Select the voltage plug that matches the voltage rating of the replaced motor. Install the voltage plug. Connect the harness plugs to the motor. White Voltage Plug 115vac Systems Yellow Voltage Plug 230vac Systems • HIGH VOLTAGE POWER CONNECTIONS ◦ Note: The Black and White HIGH VOLTAGE POWER wires are taped together and flagged for identification.
Using EC Max to replace PSC (Permanent Split Capacitor) induction motors. 6 packardonline.com | 800.334.
Using EC Max to replace Constant Torque ECM with 24vac speed taps. • Install motor in HVAC system using a belly band mount. • Select the voltage plug that matches the voltage rating of the replaced motor. Install the voltage plug. Connect the harness plugs to the motor. White Voltage Plug 115vac Systems Yellow Voltage Plug 230vac Systems • HIGH VOLTAGE POWER CONNECTIONS ◦ Note: The Black and White HIGH VOLTAGE POWER wires are taped together and flagged for identification.
Using EC Max to replace Constant Torque ECM. 8 packardonline.com | 800.334.
Operational Characteristics The Black and White HIGH VOLTAGE POWER wires provide the power to operate the electronics in the motor control and the power to operate the motor. These inputs are required to operate the motor but cannot turn the motor on by themselves. The Black or Red HIGH VOLTAGE SIGNAL wires select the mode of operation. ◦ When replacing PSC motors the Black wire (HV1) is energized from the fan relay(s). This creates the “ON” command for the motor.
Using EC Max to replace PSC (Permanent 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). 10 packardonline.com | 800.334.
Rotation is determined automatically the first time the motor is operated. It is important to operate the motor for the first time in the HVAC system. Do not bench test the motor. The first time the motor is operated the following sequence should be recognized: • The motor will run very slowly in CW rotation (lead end) for approximately 15 seconds then stop. • The motor will run very slowly in CCW rotation (lead end) for approximately 15 seconds.
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. 12 packardonline.com | 800.334.
Diagnostics, Maintenance & Warranty Diagnostics If the motor will not operate (turn on at any speed) see the information in the previous section related to Operational Characteristics and confirm the motor has the proper line voltage and 24vac inputs needed to operate. To reverse the rotation of the motor, see the information in the previous section related to Operational Characteristics (pg 11). Maintenance The EC Max motor is permanently lubricated and requires no maintenance. Warranty 1.
Specifications Voltage Ratings • 115VAC (white voltage plug) allowable range 90-132VAC • 230VAC (yellow voltage plug) allowable range 180-264VAC Horsepower Ratings 1/3, 1/2, 3/4 & 1 FLA Ratings • 1/3 Hp = 5.0/3.0 • 1/2 Hp = 6.7/4.0 • 3/4 Hp = 8.2/4.9 • 1 Hp = 11.0/6.
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