Refrigeration System Diagnosis Guide - U-Line Origins Series Service And Parts Manual

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 0 PSIG
Gas to
25"

Refrigeration System Diagnosis Guide

Suction Compressor
Line Discharge
Slightly below Very hot
room
temperature
Very cold Slightly warm
may frost to hot
heavily
Warm - near Hot
room
temperature
Warm - near Very hot
room
temperature
Room Room
temperature temperature
(cool) (cool)
Room Cool
temperature to
(cool) hot
Condenser Capillary
Tube
Very hot Warm
Hot to warm Cool
Warm Warm
Top passes Room
warm - temperature
Lower passes (cool) or
cool colder
(near room
temperature)
due to liquid
Room Room
temperature temperature
(cool) (cool)
Room Room
temperature temperature
(cool) (cool)
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 Lower than
refrigeration normal
No Lower than
refrigeration normal