Unit installation

IOMM ACZ1-2 ACZ 010A through 039A 5
Clearances
The flow of air to and from the
condenser coil must not be limited.
Restricting airflow or allowing air
recirculation will result in a decrease
in unit performance and efficiency.
There must be no obstruction above
the unit that would deflect discharge
air downward where it could be
recirculated back to the inlet of the
condenser coil. The condenser fans
are propeller type and will not operate
with ductwork on the fan outlet.
Install the unit with enough side
clearance for air entrance to the coil
and for servicing. Provide service
access to the compressors, electrical
control panel and piping components as
shown in Figure 3. Do not block
access to the unit with piping or
conduit.
Do not allow debris to accumulate near
the unit. Air movement can draw
debris into the condenser coil causing
air starvation. Give special
consideration to low ambient operation
where snow can accumulate. Keep
condenser coils and fan discharge free
of snow or other obstructions to permit
adequate airflow.
Sound Isolation
The low sound levels of the ACZ units
are suitable for most applications.
When additional sound reduction is
necessary, locate the unit away from
sound sensitive areas. Avoid locations
beneath windows or between structures
where normal-operating sounds may be
objectionable. Reduce structurally
transmitted sound by isolating
electrical conduit and the unit itself.
Use wall sleeves and rubber isolated
refrigerant piping hangers to reduce
transmission of noise into occupied
spaces. Use flexible electrical conduit
to isolate sound through electrical
conduit. Spring isolators are effective
in reducing the low amplitude sound
generated by the compressors and for
unit isolation in sound-sensitive areas.
Figure 3, Clearance requirements
4 Ft.
(1220mm)
Clearance for
Service Access
4 Ft. (1220mm)
Clearance for Air Inlet
4 Ft.
(1220mm)
Clearance for
Service Access
4 Ft. (1220mm)
Clearance for Air Inlet
The recommended minimum side clearance between two units
is 8 feet (2440mm).
The unit must not be installed in a pit or enclosure that is
deeper or taller than the hei
g
ht of the unit unless extra space
is provided. The minimum clearance on each side of the
unit is 6 feet
(
1828mm
)
when installed in a pit. The pit cannot
be deeper than the unit.
The minimum clearance to a side wall or building taller than
the unit height is 6 feet (1828mm) provided no solid wall
above 6 feet (1828mm) tall is closer than 12 feet (3658mm)
to the opposite side of the unit.