24
Fig. 22 — Compressor Shipping Bolts
(Size 032 Only)
Fig. 23 — Compressor Shipping Bolts
(Sizes 050-071 Only)
Step 5 — Make Piping Connections —
See Fig.
24-27 for typical piping applications.
UNITS WITHOUT MANIFOLD — All sizes have Victau-
lic IPS (Iron Pipe Size) water connections as shown in Ta-
bles 1-4.
30MPA SYSTEM CONDENSER — For detailed con-
denser piping installation instructions for 30MPA systems,
refer to separate instructions packaged with the remote
condenser units.
Condenser refrigerant piping for 30MPA units should be
sized to minimize the amount of refrigerant required. Consider
the length of piping required between the condenser and indoor
unit, the amount of liquid lift, and the compressor oil return.
The maximum length of refrigerant piping is 200 ft (61m).
Discharge and liquid lines should be sized in accordance with
Table 5. Liquid line refrigerant chart is shown in Table 6.
Double discharge risers may be required for proper oil return if
condenser is located above the chiller and if hot gas bypass is
installed, or if unit is used for medium temperature brine
application. See Table 7 and Fig. 28.
Table 5 — Single Circuit 30MPA Line Sizing Chart
LEGEND
NOTE: Shaded areas indicate dou
b
le discharge riser re
q
uired if unit is
e
q
uipped with hot gas
b
ypass or operation
b
elow 40°F LWT (Leaving Water
Temperature). All units with digital compressors re
q
uire dou
b
le discharge
riser.
Table 6 — Liquid Line Refrigerant Chart
Table 7 — Double Discharge Riser Data
NOTE: All pipe sizes are OD.
NOTE: For 30MP032 units, remove eight RED shipping
b
olts
from compressor mounting rail. These RED
b
olts are for shipping
purposes only.
COMPRESSOR
HOLDDOWN
BOLTS (RED) TO
BE REMOVED
(BOTH SIDES)
COMPRESSOR
HOLDDOWN
BOLTS TO BE
REMOVED
(BOTH SIDES)
NOTE: For 30MP050-071 units, RED
b
olts from the unit and the
compressor mounting rail MUST BE REMOVED. These RED
b
olts are for shipping purposes only.
IMPORTANT: Do NOT bury refrigerant piping underground.
Failure to comply could result in equipment damage.
30MPA
UNIT
UNIT
REFRIGERANT
CONNECTIONS
(CHILLER
CONNECTION
SIZE)
ODS
TOTAL LINEAR LENGTH OF
INTERCONNECTING PIPE FT (M)
0 - 50
(0 - 15.4)
EQUIV. PIPE
LENGTH =
75 FT
50 - 100
(15.4 - 30.5)
EQUIV. PIPE
LENGTH =
150 FT
100 - 200
(30.5 - 61.0)
EQUIV. PIPE
LENGTH =
300 FT
L (in.)
D (in.)
L (in.)
D (in.)
L (in.)
D (in.)
L (in.)
D (in.)
020
1
/
2
1
3
/
8
5
/
8
1
3
/
8
5
/
8
1
3
/
8
7
/
8
1
3
/
8
030
5
/
8
1
3
/
8
7
/
8
1
3
/
8
7
/
8
1
3
/
8
7
/
8
1
3
/
8
040
5
/
8
1
5
/
8
7
/
8
1
5
/
8
7
/
8
1
5
/
8
1
1
/
8
1
5
/
8
045
5
/
8
1
5
/
8
7
/
8
1
5
/
8
7
/
8
1
5
/
8
1
1
/
8
1
5
/
8
050
1
1
/
8
1
5
/
8
1
1
/
8
1
5
/
8
1
1
/
8
2
1
/
8
1
3
/
8
2
1
/
8
055
1
1
/
8
1
5
/
8
1
1
/
8
1
5
/
8
1
1
/
8
2
1
/
8
1
3
/
8
2
1
/
8
060
1
1
/
8
1
5
/
8
1
1
/
8
2
1
/
8
1
1
/
8
2
1
/
8
1
3
/
8
2
5
/
8
065
1
1
/
8
1
5
/
8
1
1
/
8
2
1
/
8
1
1
/
8
2
1
/
8
1
3
/
8
2
5
/
8
071
1
1
/
8
1
5
/
8
1
1
/
8
2
1
/
8
1
1
/
8
2
1
/
8
1
3
/
8
2
5
/
8
D
—
Discharge Line Size (discharge line size is e
q
ual to the chiller
connection size)
L
—
Li
q
uid Line Size (li
q
uid line size is e
q
ual to or greater than the
chiller connection size)
PIPE DIAMETER
(in.)
POUNDS PER 10 LINEAR FEET
(KG PER 3 M)
1
/
2
0.6 (0.27)
5
/
8
1.0 (0.45)
7
/
8
2.0 (0.91)
1
1
/
8
3.5 (1.58)
1
3
/
8
5.1 (2.32)
30MPA
UNIT
TOTAL LINEAR LENGTH OF
INTERCONNECTING PIPE
FT (M)
MINIMUM
TONNAGE WITH
DOUBLE RISER
0 - 200
(0 - 61.0)
RISER A (in.)
RISER B (in.)
020
7
/
8
1
1
/
8
1.86
030
7
/
8
1
1
/
8
1.86
040
7
/
8
1
3
/
8
1.86
045
7
/
8
1
3
/
8
1.86
050
1
5
/
8
1
5
/
8
3.16
055
1
5
/
8
1
5
/
8
3.16
060
1
5
/
8
2
1
/
8
3.16
065
1
5
/
8
2
1
/
8
3.16
071
1
5
/
8
2
1
/
8
3.16
