Carrier 30HH - Manual (Page 11)

INSTALLATION
30HH,HJ
FRONT
MOTOR END
REAR
PUMP END
Fig. 8 - 30HH,HJ015-030 Compressor
Mounting
Fig. 9 - 30HH,HJ045-065 Compressor
Mounting
7. Remove both compressor motor end hold­
down bolts, nuts, lock washers, and pipe
spacers, and replace with 3/8-16 x 1” bolts.
Reinstall
lock washers and nuts to fasten
mounting brackets to resilient mounts.
30HH,HJ045 to 065 units (Fig. 9):
The pairs of manifolded compressors are mount­
ed on common mounting brackets. Be sure all
pipe spacers are removed for proper operation.
The mounting of the single compressor on
30HH,HJ045 units is similar.
1. Remove one 3/8-16 x 3-1/2” hold-down bolt,
nut, lock washer, and pipe spacer on the pump
end of the compressor.
2. Install a 3/8-16 x 1-3/4” bolt, supplied in
bag of fastenings, and reinstall nut and lock
washer from hold-down bolt, to fasten com­
pressor to mounting bracket.
3. Repeat steps 1 and 2 for the other pump end
fastenings of the compressors.
4. Remove one 3/8-16 x 2-1/2” hold-down bolt,
nut, lock washer and pipe spacer on the motor
end of the compressor.
5. Install a 3/8-16 x 1” bolt, supplied in bag of
fastenings, and reinstall nut and lock washer
from
hold-down bolt to fasten mounting
bracket to resilient mount.
6. Repeat steps 5 and 6 for the other motor end
fastenings of the compressor.
CONDENSER WATER PIPING
Water supply lines should be as short as condi­
tions will permit. The size of these lines is not
necessarily the same as those of the water valve
connections. All piping must be sized in accord­
ance with tije pressure head available. This is
especially
true on cooling tower applications.
See the System Design Manual, Part 3- "Piping
Design” for methods used in sizing pipe.
For installations using a waste water system, a
separate
water regulating valve is required for
each refrigerant circuit. Water regulating valves
are not supplied by Carrier.
NOTE: Provide means for draining the
system in the winter and for repairs.
Figure 10 thru 16 show suggested piping
connections for each model when used
with waste water or cooling towers.
Frangible Disc Safety Union
Each condenser is provided with a frangible
disc that will relieve at 385 psig to protect the
system from excessive pressure.
Some local codes require piping from the relief
to the outdoors. The relief outlet size on both
models is 3/8” male flare.
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