Bryant KGASD0301FMS Operating Instructions

Operating Instructions
NOTE: Read the entire instruction manual before using the
ECM motor simulator.
SAFETY CONSIDERATIONS
FIRE, EXPLOSION, ELECTRICAL SHOCK
HAZARD
Failure to follow this warning could result in personal
injury, death and / or property damage.
The ability to properly perform service on this equipment
requires certain expertise, mechanical skills, tools, and
equipment. If you do not possess these, do not attempt to
perform any service on this equipment other than those
procedures recommended in the User's Manual.
HK42FZ003, HK42FZ012, HK42FZ022, HK42FZ024,
HK42FZ026, HK42FZ031, HK42FZ035, HK42FZ043,
HK42FZ044, HK42FZ050, HK42FZ051 and HK42FZ052.
NOTE: The ECM motor simulator can only be used with the
furnace component self test function. In addition, an adapter
harness is included for installations with ECM 3.0 motors.
Use the procedure outlined below several times before relying on
the condensed instructions printed on the ECM motor simulator
labels. This procedure should be inserted into the main
troubleshooting guide.
DESCRIPTION AND USAGE
The ECM motor simulator is designed to assist the service
technician in troubleshooting the variable speed gas-fired
furnaces. Use the procedure outlined below to troubleshoot with
the ECM motor simulator.
Installing and servicing heating equipment can be hazardous due
to gas and electrical components. Only trained and qualified
service personnel should install, repair, or service heating
equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning coils, or cleaning and replacing filters. All other
operations should be performed by trained service personnel.
When working on heating equipment, observe precautions in
literature, on tags, and on labels attached to or shipped with the
unit, and other safety precautions that may apply.
Follow all safety codes. In the United States, follow all safety
codes including the National Fuel Gas Code (NFGC) NFPA
54/ANSI Z223.1. In Canada, refer to the National Standard of
Canada Natural Gas and Propane Installation Codes
(NSCNGPIC), CSA B149.1.
Wear safety glasses and work gloves. Have a fire extinguisher
available during start-up, adjustment procedures, and service
calls.
Recognize safety information. This is the safety-alert symbol
AX. 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. The words DANGER, WARNING, and
CAUTION 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 may 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.
INTRODUCTION
This instruction covers the use of the ECM motor simulator on
variable speed gas-fired furnaces that use furnace control center
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in damage to this
equipment, personal injury, or death.
Only trained and qualified personnel should install, repair or
service this equipment.
QUICK MOTOR TEST PROCEDURE
(WHEN USING ECM MOTOR
SIMULATOR)
In an effort to provide a method of troubleshooting a variable
speed inducer and/or variable speed blower motor by themselves
the following procedure may save you some time in the event any
of the following status codes are reason for the service call.
• Status codes 12, 32, 41, 42, or 44 on furnace control
HK42FZ003 or HK42FZ012.
• Status codes 15, 32, 41, or 42 on furnace control
HK42FZ022, HK42FZ024, HK42FZ026,
HK42FZ031, HK42FZ035, HK42FZ043,
HK42FZ044, HK42FZ050, HK42FZ051 and
HK42FZ052.
If you get any other status code, you should use the main
troubleshooting guide (not included in this kit) to isolate the
problem. Select the proper section based on the furnace control
board installed in the furnace.
SECTION A Variable Speed Furnace Control Boards
HK42FZ003 or HK42FZ012.
SECTION B - Variable Speed Furnace Control Board
HK42FZ022, HK42FZ024, HK42FZ026, HK42FZ031,
HK42FZ035, HK42FZ043, HK42FZ044, HK42FZ050,
HK42FZ051 and HK42FZ052.