Page 7 - Layout 1

Digi-MotorInstallation Guide
®

Connecting & Auto Sizing For X-13 Applications

NOTICE
This motor must initially be put through a brief programming mode. During this procedure,
the Azure® Digi-Motorwill run for approximately 2 minutes while it measures the external
® static pressure of the application. This process programs the motor to a horsepower value appropriate for the

application and establishes proper torque values on each of the speed taps. This is necessary for both PSC and
X-13 applications. The auto sizing process can performed as many times as desired. Each auto sizing event

overrides the previous event.

WARNING!

To prevent electric shock, personal injury, or death, turn off the electric power at the disconnect or
main service panel prior to making any electrical connections.

1) Turnoffthesystemthermostat.Makecertainallsupplyregisters,
grilles, and zones are open and unobstructed. Make certain the air 24V L1
Ground
Neutral
Common
L2
filter is clean. This is very important for accurate auto sizing and best
performance of Azure®.
Tap 1
Low Tap 2 Tap 3 Tap 4 Tap 5
625 RPM
Med Low
Med
Med High
High
2) WiththepowerremovedfromtheHVACsystem,makethefollowing
Wiring Diagram B: Harness Connections for X-
connections: Refer to wiring diagram B.
Azure®
13 Applications
• HVAC system power harness to the Azure® power harness
(24V Common, Line, Ground, Neutral/L2)

• BROWN & WHITE (24V & Common) harness to 24V

transformer Note: This is a temporary connection for auto
sizing the motor.

Refer to image 7

3) Closetheblowerhousingdoor.CarefullyapplypowertotheHVAC
system. The motor will run for approximately 2 minutes and then stop.

IMPORTANT: THE PROCESS IS NOT COMPLETE UNTIL THE
MOTOR COMES TO A COMPLETE STOP. DO NOT REMOVE

POWER UNTIL THE MOTOR STOPS. IF THE MOTOR DOES NOT
STOP, SEE TROUBLESHOOTING.
Image 7: Auto Size Harness

4) RemovepowertotheHVACsystem.

5) DisconnecttheBROWN&WHITEharness.

6) Connectthe24VspeedtapstothethermostatwheretheoriginalX-13
was connected. Select from High, Medium High, Medium, Medium

Low, or Low. See diagram on p.11. Carefully tie off any unused tap.

7) Testcompletesystemoperationandconfirmproperairflow.

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