Specifications

51
© 2012 Emerson Climate Technologies, Inc.
Printed in the U.S.A.
AE8-1368 R2
Discharge Temperature Trip / Lockout
With Demand Cooling
6.29 b
Is liquid being injected into the
compressor when required? The
display will show, “Iiquid
injecting”
Is the system
operating with
proper superheat?
Adjust the
system to reduce
excessive
superheat
Is the liquid level in the
receiver adequate to maintain
a steady supply to the
injection valve?
Check the liquid
line for a plugged
injector screen
Resolve defrost
cycle or system
charge issues
leading to low
liquid
Is current flowing through the
injection coil and magnetic
pull developed by the coil?
If 24 VAC is developed
across the coil but no
magnetic pull force is
developed and no
amperage, replace the coil
Are there any
shorted coil
warnings?
Verify that the
harness isn’t
shorted, or
replace the coil
Are there any gaps in
discharge temperature
data (loss of data), or
temperature probe fault
warnings?
Diagnose
temperature
probe faults
Yes No
Yes
No
Yes
No
Yes
No
Yes
No
Note: This coil has a diode in it. In one direction, the circuit will
test “open”. The other direction will give varying resistance
readings depending upon the ohmmeter