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12
PR
OCESS GAS SY
STEM
VAL
VE
HIGH
PRESSURE
SIDE
CR
ANK
CASE
HEA
TER
COMPRESSOR
AC
CUMULA
TOR
~ ~
PRESSURE SWIT
CH
SWIT
CH
LOW PRESSURE
GA
UGE
SUC
TION PRESSURE
LOW
PRESSURE
SIDE
AC
CESS
FIT
TING
REFRIGERA
TION
SY
STEM
AIR C
OOLED C
ONDENSER
W
ATER
STR
AINER
REGULA
TING V
AL
VE
COOLING W
ATER
COOLING W
ATER (IN)
COOLING
CONDENSER
W
ATER C
OOLED
W
ATER (
OUT
)
COOLING
(OPTIONAL)
(AIR C
OOLED UNIT
S ONL
Y)
MODELS 750
TO 1000
FAN SWIT
CH
(AIR C
OOLED
UNIT
S ONL
Y)
FAN SWIT
CH
FIL
TER / DR
YER
AC
CESS
FIT
TING
FIT
TING
AC
CESS
PRESSURE
VAL
VE
RELIEF
HEA
T EX
CHANGER
REHEA
TER
PRE-
COOLER
AIR-
AIR
SWIT
CH
(ST
AND
ARD
)
CONDENSER DE
TAIL
OPTIONAL W
ATER
COOLED
TYP
E
CAR
TRIDGE
SEP
AR
AT
OR
MOISTURE
(OPTIONAL)
GA
UGE
(OPTIONAL)
HEA
T EX
CHANGER
INLET
REHEA
TER
PRE-
COOLER
AIR
AIR-
AIR
EVAPOR
ATOR
IN
TEMP
(OPTIONAL)
OUTLET
AIR
PRESSURE
OUT
(OPTIONAL)
PRESSURE
DISCHAR
GE
HIGH
CAPILLAR
Y TUBE
HEA
T EX
CHANGER SE
T #2
HEA
T EX
CHANGER SE
T #1
BY
-P
ASS
HO
T GAS
(USED ONL
Y ON MODEL 1000)
(USED ON MODELS 300-1000)
CONDENSA
TE
DR
AIN
AUT
OM
ATIC
ELEC
TRIC
SER
VICE V
AL
VE/
M
ANU
AL DR
AIN
DR
AIN
EVAPOR
ATOR
HIGH TEMPER
ATURE
(OPTIONAL)
7.2 Process Gas / Refrigeration Flow Diagram:
Models DHP300 through DHP1000