ECM Motor Tester Kit Service/Operating Instructions KFASD0301VSP

ECM Motor Tester Kit Service/Operating Instructions KFASD0301VSP
ECM Motor Tester Kit
KFASD0301VSP
Service/Operating Instructions
NOTE: Read the entire instruction manual before starting the
installation.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause death, personal injury, or other conditions which
may cause death, personal injury, or property damage. Consult a
qualified installer, service agency or your distributor or branch for
information or assistance. The qualified installer or agency must
use factory- authorized kits or accessories when modifying this
product. Refer to individual instructions packaged with the kits or
accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in
literature and attached to the unit. Consult local building codes and
National Electrical Code (NEC) for special requirements.
.
Recognize safety information. This is the safety- alert symbol
When you see this symbol on the furnace and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION
and NOTE. These words are used with the safety- alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which would result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
!
WARNING
INTRODUCTION
The ECM Motor Tester is designed to isolate the ECM blower
motor and help the technician determine if the blower motor is
defective. The ECM Motor Tester can only be used to test the
variable speed ECM 2.0 and 2.3 blower motors on thermostatically
controlled (T- STAT) systems and ECM 3.0 blower motors on
serial communicating systems. This tester cannot be used on ECM
2.5 blower motors. This includes residential fan coils, small
packaged products, some models of 80% non- condensing furnaces
and 90% condensing furnaces.
The ECM Motor Tester contains alligator clips to connect to
24VAC from the circuit board of the unit being tested.
NOTE: This tester will rotate the motor a portion of the expected
airflow. This is not intended to replace the functionality of the
control board.
KIT CONTENTS
KFASD0301VSP
HK50EA002 ECM Motor Tester
Service Instructions
1
1
TESTING UNITS
!
CAUTION
PERSONAL INJURY HAZARD
Failure to follow this caution may result in unit damage.
To prevent possible damage to the motor electronics, never
remove the 5- pin high voltage plug with the power on.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installing or servicing system, always turn off main
power to system. Lock out and tag switch with a suitable
warning label. There may be more than 1 disconnect switch.
Turn off accessory heater power if applicable.
1. Shut off power to unit.
2. Unplug the 16- pin connector for ECM 2.0 and 2.3 motors
or the 4- pin connector for ECM 3.0 motors. Leave the
5- pin high voltage plug connected at the ECM blower motor. Plug the 16- pin connector for ECM 2.0 and 2.3 motors
or the 4- pin connector for ECM 3.0 motors from the ECM
Tester, shown in Fig. 1, to the ECM motor.
3. Attach the RED lead of the tester to the R terminal on the
unit control board and the BLACK wire to the C terminal
on the unit control board. The ECM 3.0 may require the use
of additional alligator clips or piggy- back connectors.
4. Turn on power to the unit. The green POWER LED found
in the switch should turn on.
5. The green motor LED is attached to the output pins of the
motor. The LED will blink dimly when the motor power is
turned on. As the rpm of the motor increase, the brightness
of the LED will increase.
A08014
Fig. 1 - ECM Motor Tester
Copyright 2012 CAC / BDP D 7310 W. Morris St. D Indianapolis, IN 46231
Edition Date: 10/12
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
2
Catalog No: AG - KFASD- 02
Replaces: AG- KFASD- 01
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