Samsung AM0 SERIES Installation Manual

Also see for AM0 SERIES: Installation manual Technical bulletin

ENGLISHSelecting motor speedSelecting the Constant Torque Blower SpeedThis air handler uses a Constant Torque high efficiency motor. This motor operates on 240 VAC. The motor speed taps are 24VAC, 0.03 amps, 60 Hz, 1 PH. The speed taps can be adjusted according to installation needs. Table 4 shows the motor leadconnection labeling and the connection definitions. See blower tables in later section for airflow data.When using optional electric heat kits, the heat kits will have a fan speed wire that will be connected to the fan motor on speed tap 5from the factory. Refer to the heat kit installation manual for minimum CFM for electric heat kit use before adjusting this speed tapwire (speed tap 5 is recommended)Total 24 VAC circuit amps are 0.14 amps.Change Motor Speeds1. Turn off all electrical supply circuits to the air handler at the main service (House Circuit Breaker) panel.2. Remove the blower door and switch air handler circuit breaker(s) to “OFF”.3. Disconnect the wire from the isolation relay terminal and reconnect the desired wire to the terminal. The BLACK wireis high (standard) speed. The WHITE wire is low (reduced) speed. The ORANGE wire is electric heat high fan speed. TheORANGE wire must be connected to a speed tap that will provide sufficient airflow for the size of the electric heat kit. Refer tothe heat kit installation manuals for minimum CFM for electric heat kit activation (usually speed tap 5).4. Turn the circuit breakers on and reinstall air handler blower door.5. Turn on all electrical supply circuits to the air handler at the main service (House Circuit Breaker) panel.AM012/18/24/30/36/48/60/72JNZDCH/AAAM054JNZDCH/AAC Speed tap common - 24 VAC commonL Supply voltage - 240 VAC Line 1G Ground connectionN/L2 Supply voltage - 240 VAC Line 2T1 Low speed tap - 24 VAC inputT2 Medium-low speed tap - 24 VAC input"Reduced" speedT3 Medium speed tap - 24 VAC input "Reduced" speed"Standard" speedT4 Medium-high speed tap - 24 VAC input "Standard" speedT5 High speed tap - 24 VAC inputDefault speed tap settingsTerminal ConnectionMotor control/voltage tapsN/L2GLCT5T4T3T2T1High speed for electric heat High speed for electric heat6. When black wire(Standard) is required to be connected to tap 5, the orange wire which originally is connected to tap 5 can beconnected to any tap except tap 5.AM0**JNZDCH/AA IM ENG_V1.5_0708201528