Refrigeration Piping - Daikin RDT-135c Installation And Maintenance Manual

Refrigeration Piping

This section presents the unit refrigeration piping diagrams for
the various available configurations.
Figure 5. Circuit schematic
B
A
M
J
N
L K
D
Figure 6. Condenser piping, scroll compressors, one to three compressors per circuit are provided (015 to 105C)
Legend
1 - Discharge shut-off valve—Circuit #1
2 - Liquid shut-off valve—Circuit #1
3 - Liquid shut-off valve—Circuit #2
4 - Discharge shut-off valve—Circuit #2
Discharge lines
Circuit #1
Circuit #2
IM 738-2
C
H G F I
1
Compressor #3
Compressor #1
A Compressor (1, 2, or 3 per circuit)†
B Discharge line †
C Condenser coil †
D Evaporator coil*
E Manual shutoff valve†
F Filter-drier*
G Liquid line solenoid valve*
H Sightglass*
I Liquid line*†
J Suction line
K Thermal expansion valve*
E
L Distributor*
M Hot gas bypass and solenoid valve (optional)*†
N Hot gas bypass lines (optional)* †
*Supplied on RFS units
†Supplied on RCS units
2
Compressor #2
Introduction: Refrigeration Piping
Liquid lines
Circuit #1
Circuit #2
Optional
hot gas
bypass
lines
Circuit #1
Circuit #2
Suction
lines
Circuit #1
Circuit #2
4
Compressor #4
3
5