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COMPRESSOR
HOLDDOWN
BOLTS (RED) TO
BE REMOVED
(BOTH SIDES)
NOTE: For 30MP032 units, remove eight RED shipping bolts
from compressor mounting rail. These RED bolts are for shipping
purposes only.
Fig. 22 — Compressor Shipping Bolts
(Size 032 Only)
COMPRESSOR
HOLDDOWN
BOLTS TO BE
REMOVED
(BOTH SIDES)
NOTE: For 30MP050-071 units, RED bolts from the unit and the
compressor mounting rail MUST BE REMOVED. These RED
bolts are for shipping purposes 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.
IMPORTANT: Do NOT bury refrigerant piping underground.
Failure to comply could result in equipment damage.
Table 5 — Single Circuit 30MPA Line Sizing Chart
UNIT
REFRIGERANT
CONNECTIONS
(CHILLER
30MPA
CONNECTION
UNIT
EQUIV. PIPE
SIZE)
ODS
L (in.)
D (in.)
L (in.)
1
3
/
1
/
020
2
8
5
3
/
1
/
030
8
8
5
5
/
1
/
040
8
8
5
5
/
1
/
045
8
8
1
5
1
/
1
/
050
8
8
1
5
1
/
1
/
055
8
8
1
5
1
/
1
/
060
8
8
1
5
1
/
1
/
065
8
8
1
5
1
/
1
/
1
071
8
8
LEGEND
D
— Discharge Line Size (discharge line size is equal to the chiller
connection size)
L
— Liquid Line Size (liquid line size is equal to or greater than the
chiller connection size)
NOTE: Shaded areas indicate double discharge riser required if unit is
equipped with hot gas bypass or operation below 40°F LWT (Leaving Water
Temperature). All units with digital compressors require double discharge
riser.
Table 6 — Liquid Line Refrigerant Chart
PIPE DIAMETER
(in.)
1
/
2
5
/
8
7
/
8
1
1
/
8
3
1
/
8
Table 7 — Double Discharge Riser Data
TOTAL LINEAR LENGTH OF
INTERCONNECTING PIPE
30MPA
UNIT
RISER A (in.)
7
/
020
8
7
/
030
8
7
/
040
8
7
/
045
8
5
1
/
050
8
5
1
/
055
8
5
1
/
060
8
5
1
/
065
8
5
1
/
071
8
NOTE: All pipe sizes are OD.
24
TOTAL LINEAR LENGTH OF
INTERCONNECTING PIPE FT (M)
0 - 50
50 - 100
(0 - 15.4)
(15.4 - 30.5)
(30.5 - 61.0)
EQUIV. PIPE
EQUIV. PIPE
LENGTH =
LENGTH =
75 FT
150 FT
D (in.)
L (in.)
D (in.) L (in.) D (in.)
5
3
5
3
/
1
/
/
1
/
8
8
8
8
7
3
7
3
/
1
/
/
1
/
8
8
8
8
7
5
7
5
/
1
/
/
1
/
1
8
8
8
8
7
5
7
5
/
1
/
/
1
/
1
8
8
8
8
1
5
1
1
1
/
1
/
1
/
2
/
1
8
8
8
8
1
5
1
1
1
/
1
/
1
/
2
/
1
8
8
8
8
1
1
1
1
1
/
2
/
1
/
2
/
1
8
8
8
8
1
1
1
1
1
/
2
/
1
/
2
/
1
8
8
8
8
1
1
1
1
/
2
/
1
/
2
/
1
8
8
8
8
POUNDS PER 10 LINEAR FEET
(KG PER 3 M)
0.6 (0.27)
1.0 (0.45)
2.0 (0.91)
3.5 (1.58)
5.1 (2.32)
MINIMUM
FT (M)
TONNAGE WITH
0 - 200
DOUBLE RISER
(0 - 61.0)
RISER B (in.)
1
1
/
8
1
1
/
8
3
1
/
8
3
1
/
8
5
1
/
8
5
1
/
8
1
2
/
8
1
2
/
8
1
2
/
8
100 - 200
LENGTH =
300 FT
7
3
/
1
/
8
8
7
3
/
1
/
8
8
1
5
/
1
/
8
8
1
5
/
1
/
8
8
3
1
/
2
/
8
8
3
1
/
2
/
8
8
3
5
/
2
/
8
8
3
5
/
2
/
8
8
3
5
/
2
/
8
8
1.86
1.86
1.86
1.86
3.16
3.16
3.16
3.16
3.16
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