USER GUIDE
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
REFRIGERATION SYSTEM DIAGNOSIS GUIDE
System
Suction
Condition
Pressure
Normal
Normal
Overcharge
Higher than
normal
Undercharge
Lower than
normal
Partial
Somewhat
Restriction
lower than
normal -
in vacuum
Complete
In deep
Restriction
vacuum
No Gas
0 PSIG to 25"
Suction
Compressor
Line
Discharge
Slightly below
Very hot
room
temperature
Very cold -
Slightly warm
may frost
to hot
heavily
Warm -
Hot
near room
temperature
Warm -
Very hot
near room
temperature
Room
Room
temperature
temperature
(cool)
(cool)
Room
Cool to hot
temperature
(cool)
Condenser
Capillary
Tube
Very hot
Warm
Hot to warm
Cool
Warm
Warm
Top passes
Room
warm lower
temperature
passes cool
(cool) or colder
(near room
temperature due
to liquid
Room
Room
temperature
temperature
(cool)
(cool)
Room
Room
temperature
temperature
(cool)
(cool)
50
SERVICE
Evaporator
Wattage
Cold
Normal
Cold
Higher than
normal
Extremely cold
Lower than
near inlet -
normal
outlet below
room
temperature
Extremely cold
Lower than
near inlet -
normal
outlet below
room
temperature
backing up
No refrigeration Lower than
normal
No refrigeration Lower than
normal
Troubleshooting - Extended 3