7
Step 1 — Inspect Shipment —
Inspect unit for dam-
age or missing parts. If damaged, or if shipment is incomplete,
file a claim immediately with the shipping company.
Step 2 — Position the Unit —
The unit may be
moved by means of rollers under the rails or a forklift truck.
If accessory mobility kit is to be used, install this accessory
after bringing unit into building and before moving the unit to
its final location per installation instructions provided with the
accessory. The factory-installed mobility kit option consists of
4 swivel-type wheels that are field-mounted to the legs of the
unit. See Fig. 7.
NOTE: The wheels are equipped with a thumb-screw brake.
Step 3 — Place the Unit
NOTE:
These units are not suitable for unprotected outdoor
use
.
Carrier recommends that these units be located in the base-
ment or on the ground floor. However, if it is necessary to lo-
cate the unit on an upper floor, be sure the structure has been
designed to support the unit weight. If necessary, add structural
support to floor. Also, be sure the surface for installation is
level. Refer to Fig. 4 and 5 for space requirements and weight
distribution.
Only electrical power connections, water connections for
condenser, fluid connections for evaporator, and strainer
installation are required for 30MPW installation. Installation of
30MPA units varies only in field piping required for the remote
condenser.
When the unit is in its final position, remove the packaging
and remove the mobility kit wheels (if equipped). Remove
3
/
8
-in. wheel nuts to remove wheels from unit legs. Level the
unit (using a level), and bolt the unit to the floor or pad.
If unit is to be mounted on unit external vibration
isolators, follow the mounting instructions included with
the accessory vibration isolator.
If unit has accessory leveling kit installed, follow the instruc-
tions provided with the accessory to make sure unit is level and
in the correct position.
Step 4 — Check Compressor Mounting —
As
shipped, units with two compressors are held down with 6 bolts
through rubber grommets. All units with three compressors are
held down with 8 bolts per pair through grommets. After unit is
installed, verify that mounting bolt torque is 7 to 10 ft-lb (9 to
14 Nm).
Step 5 — Make Piping Connections —
See
Fig. 8 and 9 for typical piping applications.
30MPA SYSTEM CONDENSER — For detailed condenser
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.
Suction and liquid lines should be sized in accordance with
Table 2. Liquid line refrigerant chart is shown in Table 3.
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. Double discharge risers are required for all units
with digital compressors. See Table 4 and Fig. 10.
Table 2 — Single Circuit 30MPA Line Sizing Chart
LEGEND
NOTES:
1. 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).
2. All units with digital compressors re
q
uire dou
b
le discharge riser.
CAUTION
Unit is top heavy. Unit may tip if handled without care.
Damage to unit or injury may result.
A
D
CONTROL
PANEL
S
IDE
WEIGHT DISTRIBUTION AT EACH MOUNTING HOLE — L
b
(kg)
UNIT 30MP
MOUNTING HOLE
A
B
C
D
A015
156 (71)
A020
159 (72)
A030
1
8
1 (
8
2)
A040
22
8
(104)
A045
234 (106)
W015
170 (77)
W020
176 (
8
0)
W030
216 (9
8
)
W040
275 (125)
W045
29
8
(135)
Fig. 6 — Mounting Hole Weight Distribution
a30-5040
Fig. 7 — Mobility Kit
a30-5041
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.)
015
1
/
2
1
3
/
8
1
/
2
1
3
/
8
5
/
8
1
3
/
8
5
/
8
1
3
/
8
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
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)
