INSTALLATION
Storage -- If the unit is to be stored for a period of time
before installation or start-up, be sure to protect the machine
fiom construction dirt and moisture. Keep protective shipping
covers in place until machine is ready for installation.
Step 1 -- Place, Rig and Mount the Unit
PLACING UNIT Locate the unit so that the condenser
airflow is unrestricted both above and on the sides of the unit.
Airflow and service clearances are 6 feet (1.8 m) around the
unit. Acceptable clearance on the cooler connection side or end
opposite the control box unit can be reduced to 3 feet (1 m)
without sacrificing performance as long as the remaining three
sides are unrestricted. Acceptable clearance on the side with a
control box can be reduced to 4 feet (1.3 m) due to NEC
regulations, without sac_-ificing performance as long as the
remaining three sides are unrestricted. Provide ample room for
servicing and removing cooler. See Fig. 2-13 for required
clearances. Local codes tbr clearances take precedence over
the manufacturer's recolrnnendations when local codes call for
greater clearances.
Modular units, 30RB315-390 must be installed with a mini-
mum separation end to end of 4 feet (1.3 m) for airtlow and
service clearance along with NEC remllations.
If multiple units are installed at tile same site, a separation of
10 feet (3 m) between the sides of the machines is required to
maintain proper airflow alld minimize the chances of condens-
er air recirculation.
MOUNTING UNIT The unit may be mounted on a level
pad directly on the base rails, on a raised perimeter rail around
the unit, on rails along the long axis of the machine, or on vi-
bration isolation springs. For all units, ensure placement area is
strong enou_l to support unit operating weight. Mounting
holes are provided for securing the unit to the pad, perimeter
rail or vibration isolation springs. Tile base rail call be point
loaded at the mounting points, and is made tiom steel, which is
formed into what is shown in Fig. 15. See Fig. 2-13 for loca-
tions of mounting points. At the mounting points, a U-shaped
channel is welded into the base rail to provide a flat plate for
mounting. See Fig. 16 for mounting plate dimensions. The
19/16 ill. (40 into) dimension shown is to the mounting hole
fiom the outside edge of the rail.
NOTE: The 19/16ill. (40 into) dimension is not the sane
dimension as the 1.42 in. (36 mm) flange that is turned under
the base rail.
Bolt the unit securely to pad or rails. If vibration isolators
(field-supplied) are required for a particular installation, refer to
unit weight distribution ill Fig. 14 to aid in the proper selection
of isolators. The 30RB units can be mounted directly on spring
isolators. For each unit or module, the final unit location must
be level so that oil wilt equalize properly.
RIGGING UNIT The 30RB060-390 units are desimled for
overhead rigging and it is important that this method be
used. Holes are provided in fiane base channels, marked for
rigging (see rigging label on unit). It is recolrnnended that
field-supplied shackles be used to thcilitate lifting. Secure the
shackles to the base rails at tile points noted on the rigging
label. See Table 4 for the number of lifting points tbr each unit.
Do not use a forklift truck to move the units.
Table 4 -- Number of Lifting Points for
30RB060-390
NUMBER OF
30RB LIFTING POINTS
060-150 4
160,170 6
190-300 8
315A, 315B,
330A, 330B, 6
345A, 345B,
360A
360B, 390A, 390B 8
Use spreader bars to keep cables or chains clear of unit
sides. As further protection plywood sheets may be placed
against sides of unit, behind cables or chains. Run cables or
chains to a central suspension point so that angle from horizon-
tat is not less than 45 degrees. Raise and set unit do,a_ careful-
ly. See Fig. 17and 18 tbr rigging centers of gravity.
Each module of the 30RB315-390 units must be rigged sep-
arately. When placing unit modules for unit sizes 315-390,
make sure modules are placed to permit access to the control
boxes for each module.
For shipping, some domestic units and all export units are
mounted on a wooden skid under entire base of unit. Skid can
be removed betbre unit is moved to installation site. Lift the
unit tiom above to remove skid. See Fig. 17 and 18 for iigging
center of gravity. On export units, the top skid can be used as
the spreader bars. If the unit was shipped with a shipping bag,
the bag must be removed to gain access to the rigging holes in
the base rail. On export units with a full crate, the crate sides
must be removed to aid in iigging.
If overhead iigging is not available, the unit can be moved
on rollers or dragged. When unit is moved on rollers, the unit
skid, if equipped, must be removed. To lift the unit, use jacks at
the rigging points. Use a minilnum number of rollers to distrib-
ute the load such that the rollers are no more than 6 feet (1.8 m)
apart. If the unit is to be dragged, lift the unit as described
above, and place unit on a pad. Apply moving force to the pad,
and not the unit. When in its final location, raise the unit and
relnove the pad.
If the unit was shipped with coil protection, it must be
relnoved betbre start-up. The shipping bag for export units
must be removed before start-up.
NOTE: If the application includes a remote-mounted cooler
option, tbllow the instructions included with the accessory for
cooler placement and reliigerant piping.
Step 2 -- Remove Compressor Rack Holddown
Bolts-- The 30RBunitsare shipped withholddo'a bolts
securing the compressor rail assmnbly to the unit base fiame.
These bolts are located between the compressors in the fiont
and rear of the compressor rail assmnbly. These bolts and hold-
down assemblies must be removed for the vibration isolation
system to operate properly. Loosen and remove the bolt and
collar assmnbly as shown in Fig. 19.
See Table 5 for the number of holddo,am assemblies for
each unit.
Isolation mounts for the compressor rail assembly are
locmed directly in fiont of and behind each compressor. Do
not loosen or remove the isolation mounts, only the shipping
bolts. There axe 4 bolts that hold do,a_ each compressor. Do
not loosen these bolts.
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