SERVICING
HUMIDITY CONTROL
When using a Humidstat (normally closed), cut jumper PJ6 on the control board. The Humidstat will only affect cooling airflow by adjusting the Airflow to 85%.
TWO STAGE HEATING
When using staged electric heat, cut jumper PJ4 on the control board.
S-16E CHECKING GE X13TM MOTORS
The GE X13TM Motor is a one piece, fully encapsulated, 3 phase brushless DC (single phase AC input) motor with ball bearing construction. Unlike the ECM 2.3/2.5 motors, the GE X13TM features an integral control module.
Note: The GE TECMate will not currently operate the GE X13TM motor.
1.Using a voltmeter, check for 230 volts to the motor connections L and N. If 230 volts is present, proceed to step 2. If 230 volts is not present, check the line voltage circuit to the motor.
2.Using a voltmeter, check for 24 volts from terminal C to either terminal 1, 2, 3, 4, or 5, depending on which tap is being used, at the motor. If voltage present, proceed to step 3. If no voltage, check 24 volt circuit to motor.
3.If voltage was present in steps 1 and 2, the motor has failed and will need to be replaced.
Note: When replacing motor, ensure the belly band is between the vents on the motor and the wiring has the proper drip loop to prevent condensate from entering the motor.
High Voltage
Connections
3/16"
C L G N
1 2 3 4 5
Low Voltage Connections
1/4”
GE X13TM MOTOR CONNECTIONS
S-17 CHECKING COMPRESSOR
WARNING
Hermetic compressor electrical terminal venting can be dangerous. When insulating material which supports a hermetic compressor or electrical terminal suddenly disintegrates due to physical abuse or as a result of an electrical short between the terminal and the compressor housing, the terminal may be expelled, venting the vapor and liquid contents of the compressor housing and system.
If the compressor terminal PROTECTIVE COVER and gasket (if required) are not properly in place and secured, there is a remote possibility if a terminal vents, that the vaporous and liquid discharge can be ignited, spouting flames several feet, causing potentially severe or fatal injury to anyone in its path.
This discharge can be ignited external to the compressor if the terminal cover is not properly in place and if the discharge impinges on a sufficient heat source.
Ignition of the discharge can also occur at the venting terminal or inside the compressor, if there is sufficient contaminant air present in the system and an electrical arc occurs as the terminal vents.
Ignition cannot occur at the venting terminal without the presence of contaminant air, and cannot occur externally from the venting terminal without the presence of an external ignition source.
Therefore, proper evacuation of a hermetic system is essen- tial at the time of manufacture and during servicing.
To reduce the possibility of external ignition, all open flame, electrical power, and other heat sources should be extin- guished or turned off prior to servicing a system.
If the following test indicates shorted, grounded or open windings, see procedures
S-17A RESISTANCE TEST
Each compressor is equipped with an internal overload.
The line break internal overload senses both motor amperage and winding temperature. High motor temperature or amper- age heats the disc causing it to open, breaking the common circuit within the compressor on single phase units.
Heat generated within the compressor shell, usually due to recycling of the motor, high amperage or insufficient gas to cool the motor, is slow to dissipate. Allow at least three to four hours for it to cool and reset, then retest.
Fuse, circuit breaker, ground fault protective device, etc. has not tripped -
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