Welbilt Manitowoc RCU1075, Technician'S Handbook, Page: 167 / 288

Part Number 000007661 Rev02 02/20 167
THERMOST
ATIC
EXP
ANSION
V
AL
VE
MODELS
If the gear mot
or and/or c
ompr
essor ar
e not ener
giz
ed r
ef
er t
o Elec
tr
ical
Tr
oubleshooting
Ref
er t
o Oper
ational P
ressur
e Char
ts f
or nor
mal pr
essur
es and t
emper
atur
es
Lo
w on
Refr
iger
an
t
O
ver
char
ge of
Refr
iger
an
t
Non C
ondensible
In S
yst
em
Liquid Line R
estr
ic
tion,
Suc
tion Line R
estr
ic
tion,
Or
Expansion V
alv
e
Star
ving
Flooding
Expansion V
alv
e
or L
oose S
ensing Bulb
(when used)
Dischar
ge P
ressur
e
Lo
w
H
igh
H
igh
Lo
w
H
igh
Suc
tion P
ressur
e
Lo
w
H
igh
H
igh
Lo
w
H
igh
Ev
apor
at
or I
nlet
Temper
atur
e
Nor
mal
Nor
mal or L
ow
H
igh
Nor
mal
Nor
mal or H
igh
Ev
apor
at
or O
utlet
Temper
atur
e
H
igh
Nor
mal
H
igh
H
igh > 12° Diff
er
en
tial
bet
w
een I
nlet and
O
utlet
< 10° Diff
er
en
tial bet
w
een
Inlet and O
utlet
Dischar
ge Line
Temper
atur
e
H
igh
Nor
mal
H
igh
Incr
eases W
ith
Run T
ime
H
igh
Incr
eases W
ith
Run T
ime
Lo
w
D
ecr
eases
W
ith
Run T
ime