Tandem requirements
Danfoss scroll compressor H series tandem use
static oil balancing principle to equalize oil level
between the compressors by gravity. This is
ensured by a precise suction and oil equalization
piping designs.
The discharge line as no impact on oil balancing
and is shown with tees, to indicate that both left
and right side discharge header are possible
Danfoss scroll H series compressors in C8 version
can be mounted in tandem assemblies.
Such manifolding applications require special
design considerations that go beyond the scope
of this document. Please contact Danfoss for
further information.
For each tandem configuration, specific outline
drawings are available as indicated in following
tables.
Depending on manifold configuration, it is
essential to equalize the pressure of compressor
sumps.
Suction and oil equalization piping
drawing must be respected (diameters, minimum
straight lengths)
R
R
Tandem model
Comp.1
Comp.2
Connection Sizes
Oil equalization
(in)
Gas equalization
(in)
Kit tandem
Code No
Outline drawing
number
Suction
(in)
Discharge
(in)
TLJ082
HRH041
HRH041
1-1/8"
3/4"
1/2"
7/8"
120Z0636
8556080
TLJ098
HRH049
HRH049
1-1/8"
3/4"
1/2"
7/8"
120Z0636
8556080
TLJ122
HLH061
HLH061
1-1/8"
3/4"
1/2"
7/8"
120Z0636
8556080
TLJ136
HLH068
HLH068
1-1/8"
3/4"
1/2"
7/8"
120Z0636
8556080
TLJ144
HLJ072
HLJ072
1-1/8"
3/4"
1/2"
7/8"
120Z0636
8556080
TLJ166
HLJ083
HLJ083
1-1/8"
3/4"
1/2"
7/8"
120Z0636
8556080
TCJ180
HCJ090
HCJ090
1-5/8"
1-1/8"
1/2"
1-1/8"
120Z0636
8556081
TCJ181
HCJ091
HCJ091
1-5/8"
1-1/8"
1/2"
1-1/8"
120Z0636
8556153
TCJ210
HCJ105
HCJ105
1-5/8"
1-1/8"
1/2"
1-1/8"
120Z0636
8556081
TCJ211
HCJ106
HCJ106
1-5/8"
1-1/8"
1/2"
1-1/8"
120Z0636
8556153
TCJ240
HCJ120
HCJ120
1-5/8"
1-1/8"
1/2"
1-1/8"
120Z0636
8556081
TCJ241
HCJ121
HCJ121
1-5/8"
1-1/8"
1/2"
1-1/8"
120Z0636
8556153
Design piping
24
FRCC.PC.012.A7.02
GENER
AL INFORM
ATION
PR
ODUC
T INFORM
ATION
INTEGR
ATION INT
O SY
STEM
ORDERING INFORM
ATION
SY
STEM DESIGN