Specifications

–159–
Cool Vapor Valve
Audible refrigerant
flow through left or
right valve in Freeze
cycle
No audible
refrigerant flow
through left or right
valve in Freeze cycle
No audible
refrigerant flow
through left or right
valve in Freeze cycle
No audible
refrigerant flow
through left or right
valve in Freeze cycle
Suction Line Temperature
Attach a temperature probe
on the suction line within 6 in.
of the shut-off valve outlet.
Record the low event at the
end of the Freeze cycle.
Suction line
temperature at the
suction shut-off valve
is
greater than 10°F
(-12.2°C)
at the end of the
Freeze cycle
Suction line
temperature at the
suction shut-off valve
is
greater than 10°F
(-12.2°C)
at the end of the
Freeze cycle
Suction line
temperature at the
suction shut-off valve
is
less than 10°F
(-12.2°C)
at the end of the
Freeze cycle
Suction line
temperature at the
suction shut-off valve
is
greater than 10°F
(-12.2°C)
at the end of the
Freeze cycle
Final Analysis
Enter total number of boxes
checked in each column.
Cool vapor valve
leaking
Low on charge
-or-
TXV starving
Refrigerant
Overcharge
-or-
TXV flooding
Compressor
Dual Expansion Valve – Q1400C/QDUAL
Operational Analysis1234