Trane TTA075AD series, Установка, эксплуатация и обслуживание

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TTA-SVX02C-EN
Clearances
Provide enough space around the unit to allow unrestricted
access to all service points. Refer to Figure 1 through Figure 7
for unit dimensions and minimum required service and free air
clearances. Observe the following points to insure proper unit
operation.
A. Do not install the unit under a low overhang. Condenser
discharge must not be restricted. See Notes in Figure 1
through Figure 7.
Important: Do not obstruct condenser discharge air.
This can result in warm air recirculation through the
coil.
B. Do not locate the unit in a position where runoff water can
fall into the fan discharge openings.
C. Condenser intake air is supplied from three sides of the
unit. Adhere to the minimum required clearances given in
Figure 1 through Figure 7.
Unit Mounting
Rooftop Mounting
If the unit will be roof mounted, determine for certain that
the structure is strong enough to support the unit and any
required accessories. Unit weights are given in Table 3.
The unit should be elevated on a level, field fabricated four-
inch steel or wood 4" x 4" mounting frame. Complete the frame
and secure it into position before lilfting the unit to the roof.
The mounting frame must support a minimum of three of the
unit’s four sides and should span roof supports to distribute
the load on the roof.
Figure 8 Roof Mounted Unit
Ensure that the roof
structure supports are strong enough to support the
weight of the unit and any accessories. Failure to do this
can result in personal injury or death due to structural
failure and can seriously damage the unit and the
building.
The following warning complies with State of California law,
Proposition 65.
This product contains
fiberglass wool insulation! Fiberglass dust and ceramic
fibers are believed by the state of California to cause
cancer through inhalation. Glasswool fibers may also
cause respiratory, skin, or eye irritation. See page 13 for
precautionary and first aid measures.
Ground Level Mounting
“For ground level installation, the unit base should be ade-
quately supported and hold the unit near level. The installation
must meet the guidelines set forth in local codes.” The support
should extend two inches beyond the unit base channels at all
points. The unit and support must be isolated from any
adjacent structure to prevent possible noise or vibration
problems. Any ground level location must comply with required
clearances given in Figure 1 through Figure 7.
Refrigerant Piping
Structural Preparation
Holes must be made in the structure to run refrigerant lines.
For the majority of ground-level installations, the holes can be
made in the header that rests on top of the foundation.
Alternatively, these holes may also be made in the foundation
itself. On roof-mounted units, refrigerant lines should enter the
building as close to the unit as possible; preferably within three
to four inches of the refrigerant connection on the unit, plus a
six-inch (long radius) 90 degree ell entering the building. (See
Figure 8)
Refrigerant Piping Guidelines
A. Maximum recommended line lengths: (per circuit)
Maximum linear length ............................................ 80 Ft.
(w/o accumulator)
Maximum suction line lift ........................................ 60 Ft.
Maximum liquid line lift ............................................ 60 Ft.
B. Maximum allowable pressure drops (R-22):
Suction line ............................................................... 6 psi
Liquid line (without subcooler) ............................... 35 psi
Route refrigerant piping for minimum linear length, mini-mum
number of bends and fittings (no reducers) and
minimum amount of line exposed to outdoor ambients.
Installation