3B: Location; 3B.1: Unit Placement; 3B.2: Service Access; Figure 3: Clearance Requirements - Quantum 67ACW2-134 Owner's Manual

Owners Manual

3b: Location

3b.1: Unit Placement

Units are for outdoor applications and can be
mounted on a roof or at ground level.
The location shall be dry and not subject
to flooding at time.
Set the unit on a solid and level foundation.
For roof-mounted applications, install the
unit on a steel channel or I-beam frame to
support the unit above the roof. For ground
level applications, install the unit on a
substantial base that will not settle. A one-
piece concrete slab with footings extending
below the frost line is recommended.
Additionally, the slab should not be tied to
the main building foundations. Be sure the
foundation is level (within 9 mm over its
length and width). The foundation must
support the weights listed in section 2d.1
Physical Data Table.
It is preferable that the foundation has a 0.01
slope downward along the depth of the unit.
Since its operation is affected by wind, the
unit should be located so that its length is
parallel with the prevailing wind. If this is
not practical, use field fabricated wind
deflectors.

3b.2: Service Access

Each end of the unit must be accessible after
installation for periodic service. Compressor,
filter drier, and liquid line solenoid valve are
accessible from the side of the unit.
Compressor, high-pressure, and low-pressure
controls are from the front of the unit, and
motor protector controls are on the
compressor. Most operating, equipment
protection, and starting controls are located
in the unit control box.
The fan deck with the evaporator fans and
motors can be removed from the top of the
unit.
Document Number : QDC0049PD-5
Quantum Energy Technologies

Figure 3: Clearance Requirements

Clearance for
1200mm
Clearance
for Service
Access
1000mm
Clearance
for Air Inlet
The recommended minimum side clearance between two
units is 2000mm.
Unit must not be installed in a pit or enclosure that is deeper or taller
than the height of the unit unless extra space is provided. The
minimum clearance on each side of the unit is 1200mm 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 is 2000mm provided no solid wall above
1800mm tall is closer than 3600mm to the opposite side of
the unit.
1000mm
Air Inlet
1200mm
Clearance
for Service
Access
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