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PRO
3
TOP MOUNT PACKAGED REFRIGERATION SYSTEM
6
STANDARD INSTALLATION PROCEDURE
FOR INDOOR USE
1. Inspect packaging for shipping damage.
Open package and inspect unit for concealed damage.
2. Review the space and location requirements on page 4.
3.. Provide a finished opening in the box ceiling, to the
appropriate dimensions and structural strength.
4. DO NOT remove or disengage any box cam-locks in
order to install the PRO
3
unit.
ACCESS REQUIREMENTS
Provide adequate space at the compressor end of the unit
for servicing. Provide two (2) feet of space above unit for
service.
RIGGING
Rigging holes are provided on all models. 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.
MOUNTING
The system requires an opening in the ceiling to the
dimensions stated on page 3. Mounting rails are located
at both ends of the chassis. Mounting rails may be used to
attach unit to ceiling. Through-bolts should be insulated
or non-conductive to prevent sweating. The chassis is
weather stripped around the air grille and will seal to the
box roof. The trim ring (shipped loose), when provided,
should be installed around the air diuser when secured
with the hardware provided. Be sure to adhere to your local
standard construction codes.
INSPECTION
1. Each shipment should be carefully checked against the
bill of lading.
2. The shipping receipt should not be signed until all items
listed on the bill of lading have been accounted for.
3. Check packaging for signs of damage.
4. Any shortage or damages should be immediately
reported to the delivering carrier.
5. Damaged material becomes the delivering carrier’s
responsibility, and should not be returned to the
manufacturer unless prior approval is given to do so.
6. When unpacking the system, care should be taken to
prevent damage.
7. Avoid removing the shipping base until the unit has been
moved to the final destination.
8. Complete warranty return card for each unit and mail to
Heatcraft Refrigeration Products.
5. Clean the roof of the box to provide a good sealing
surface for the unit weatherstrip. Refer to box
manufacturer’s instructions for any procedures or
processes necessary to ensure the integrity of the
exposed foam in the panels is not compromised.
6. Check the mounting surface with a level. PRO
3
units
require a surface that is within 1° of level or better and no
more than a 5/8” drop per 3 feet (17 mm drop per meter).
7. For walk-in boxes with aluminum top panels, it is
recommended that a thermal break be placed on the roof
adjacent to the opening to prevent the possibility of
sweating.
8. Place the unit gently into the provided opening with the
evaporator air flow directed toward the door (See page 4).
Be careful not to damage the grill during installation.
9. Ensure that the condenser air flow is not obstructed.
GENERAL SAFETY INFORMATION
1. Installation and maintenance to be performed only by a
licensed contractor.
2. Ensure that the structural integrity of the box can withstand
the weight of the PRO
3
. See Tech Bulletin for unit weights
3. Avoid contact with sharp edges and coil surfaces. They are
a potential injury hazard. Wear gloves during moving and
rigging.
4. Make sure all power sources are disconnected before any
service work is done on units.
Self Drilling
Screw
Evaporator Grill
Ceiling of
Walk-In
Trim Pieces (4)
Overlap as shown
Trim Ring Installation Detail
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