29
Installation
Selecting motor speed
Selecting the Constant Torque Blower Speed
lead connection labeling and the connection denitions. See blower tables in later section for airow data.
Total 24 VAC circuit amps are 0.14 amps.
Change Motor Speeds
1. 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 RED wire is high
speed. The VIOLET wire is mid speed. The GREEN wire is low speed. The ORANGE wire is electric heat high fan speed. The
to the heat kit installation manuals for minimum CFM for electric heat kit activation.
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.
6.
connected to any tap except tap 5.
Terminal
Connection Default speed tap settings
C
Speed tap common - 24 VAC common
L
Supply voltage - 240 VAC Line 1
G
Ground connection
N/L2
Supply voltage - 240 VAC Line 2
T1
Low speed tap - 24 VAC input
T2
Medium-low speed tap - 24 VAC input
T3
Medium speed tap - 24 VAC input
T4
Medium-high speed tap - 24 VAC input
T5
High speed tap - 24 VAC input
High speed for electric heat
Motor control/voltage taps
DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 29 2022-09-15 오전 9:53:23
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