Digi-Motor
®
Installation Guide
3
®
www.marsdelivers-contractors.com
Product Description
The Azure
®
Digi-Motor
®
from MARS is a high efficiency variable speed direct drive blower motor for a multitude of
applications. Azure
®
is a replacement for both standard PSC and Genteq X-13 motors. Two motors
cover ratings from 1/5 HP to 1 HP at 115V or 230V and CW or CCW.
Azure
®
features an auto sizing learn mode. In start-up learn mode, Azure
®
runs for approximately 2 minutes measuring
the external static pressure of the system application. Azure
®
then assigns torque values to each of its speed taps self-
programming itself to the correct horsepower for the application.
If none of the four speeds provides perfect airflow for the application or if duplicate speeds are desired on 2 or more
taps, an optional hand held programmer (MARS No. 08502) can be used. The programmer connects to Azure
®
and
displays the percentage of torque applied to the speed tap being energized. The percentage (motor speed) can then
be increased or decreased and permanently set with the programmer. This tool overrides the motor torques
established in the auto sizing mode.
Unlike other electronically commutated motors, an outboard surge protector is included within Azure’s
®
wire harness.
This is a replaceable device (MARS No. 08593).
• Outboard replaceable surge protector
• Adjustable speeds (with optional MARS No. 08502)
• 625 RPM constant fan speed tap
• Reversible rotation, dual voltage
• High efficiency 85%
Use this motor only in applications for which it
was designed.
• The Azure
®
Digi-Motor
®
is intended for use in
direct drive centrifugal blower applications.
• The Azure
®
Digi-Motor
®
is designed for
continuous, air-over duty and must be
mounted in the air stream of an air-moving
device to ensure proper cooling of the motor.
• Do not use this motor in locations containing
explosive vapors.
• The ambient operating temperature range is
-4˚F (-20˚C) to 131˚F (55˚C).
• Only trained and qualified HVAC professionals
should install this motor.
• Before disconnecting or connecting the HVAC
blower motor, ensure that power is shut off to
the system. Failure to do so may result in
system damage or personnel injury.
• Do not operate the motor without a load
(blower wheel).
• Always ensure the voltage jumper on the
motor is set to match the voltage of the
system.
Safety
To reduce the risk of electrical shock, do not separate motor and control unit. The control unit has no serviceable
parts.
To reduce the risk of electrical shock or fire, do not expose the motor to rain or moisture.
• Multi-horsepower, direct drive
• Constant torque
• 4 Speeds
• Belly band mount
• No capacitor required
WARNING!
WARNING!
WARNING - SHOCK HAZARD!
