Heatcraft Mohave, Installation & Operation Manual, Page: 11 / 76

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Figure 3. Spring Mount
Figure 5. Spring Mount
Figure 4. Solid Mount for Mobile or Deep
Sump Application.
Condensing Unit Rigging and Mounting
Rigging holes are provided on all units. Caution should be exercised when moving
these units. To prevent damage to the unit housing during rigging, cables or chains
used must be held apart by spacer bars. The mounting platform or base should be
level and located so as to permit free access of supply air.
Ground Mounting
Concrete slab raised six inches above ground level provides a suitable base. Raising
the base above ground level provides some protection from ground water and wind
blown matter. Before tightening mounting bolts, recheck level of unit. The unit should
in all cases be located with a clear space in all directions that is at a minimum, equal
to the height of the unit above the mounting surface. A condensing unit mounted in
a corner formed by two walls, may result in discharge air recirculation with resulting
loss of capacity.
Roof Mounting
Due to the weight of the units, a structural analysis by a qualified engineer may be
required before mounting. Roof mounted units should be installed level on steel
channels or an I-beam frame capable of supporting the weight of the unit. Vibration
absorbing pads or springs should be installed between the condensing unit legs or
frame and the roof mounting assembly.
Access
Provide adequate space at the compressor end of the unit for servicing. Provide
adequate space on the connection side to permit service of components.
Spring Mounted Compressor
Compressors are secured rigidly to make sure there is no transit damage. Before
operating the unit, it is necessary to follow these steps:
a. Remove the upper nuts and washers.
b. Discard the shipping spacers.
c. Install the neoprene spacers. (Spacers located in the electrical panel or
tied to compressor.)
d. Replace the upper mounting nuts and washers.
e. Allow 1/16 inch space between the mounting nut/
washer and the neoprene spacer. See Figure 3 below.
Rigid Mounted Compressor
Some products use rigid mounted compressors. Check the compressor mounting bolts
to insure they have not vibrated loose during shipment. See Figure 3 and 5 below.
Condensing Unit Installation