Minimum Clearances; Service Access - Trane Arctic Manhattan Gen II Installation, Operation And Maintenance Manual

Minimum Clearances

The unit must maintain clearance on all sides to
provide for adequate ambient air circulation. See
Figure 2, p. 15.
The air cooled condensers are designed for outdoor
installation and must be mounted level on a roof or
concrete slab that is strong enough to support the total
equipment operating weight. Consult a professional
structural engineer to determine safe mounting loads.
Unrestricted airflow must be provided to each
condenser. Avoid air recirculation from other nearby
equipment. Locate the condenser away from building
air vents and heat sources such as exhaust fans.
The unit should be located far enough away from any
wall or other obstruction to provide adequate clearance
for ambient air intake and discharge:
There should be no obstruction above the chiller
module to interfere with fan discharge of heated air.
Even a partial overhang of an eave or awning can trap
hot air and significantly degrade chiller performance.
Each chiller module must be as far away from any wall
or barrier as space allows. Sufficient clearance must be
maintained between the chiller modules and any walls
or other objects that can interfere with the free flow of
air to the condenser coils.
Sceening fences must have 50% open surface area,
with one foot of bottom clearance, and must not extend
higher than the top of the fan grill. Modules should be a
minimum of three feet away from any fence. Failure to
follow these minimum requirements may result in
performance degradation.
Figure 2. Recommended chiller clearances
ARTC-SVX001B-EN
Modules located in a sub-level or pit require special
considerations to avoid air recirculation and heat
buildup. The top of each fan grill must be level with, or
higher than, the top of the pit. All sides of the chiller
should be a minimum of three feet away from any side
of the pit.
Do not attach ductwork to any fan or fan shroud.
Refrigerant piping should be sufficiently flexible to
prevent transmission of noise and vibration into the
building.
If the desired location for the chiller is confined by
walls, fences, overhanging roof eaves, or is located in a
pit (sub-level site), contact Trane to discuss potential
impact on equipment performance.
The National Electric Code or local, state, and regional
building codes may require greater clearance for the
modular chiller than the figures listed in this
publication. Always consult local regulatory agencies
to ensure additional clearances are not required by
building codes.

Service Access

Clearance must be maintained between the module
and any nearby wall or impediment to provide
sufficient room to open power distribution panel and
electrical and control panel doors for routine
maintenance and servicing. In general, 36 to 48 inches
of space is required to allow panel doors to fully swing
open and to meet local and national electrical codes.
Compressors, filter-strainers, and liquid line shutoff
valves are accessible on each side or end of each
chiller.
I I n n s s t t a a l l l l a a t t i i o o n n M M e e c c h h a a n n i i c c a a l l
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