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8 31-5000493 Rev. 4
MINIMUM CLEARANCES AND DIMENSIONS
(Appearance may vary)
This picture is for reference only. Your product may look different.
Installation Instructions
Step 1 - Preparation
A. Procedure for selecting the location:
• Place above the ceiling or in soffit area where you have
enough space to position the unit.
• Place where the drainage pipe can be properly
positioned.
• Place where the inlet and outlet air of the indoor unit will
not be blocked.
• Do not install the unit in a place with heavy oil or
moisture (e.g. - kitchens and workshops)
• Do not install in a location with destructive gas (such as
sulfuric acid gas) or pungent gas (thinner and gasoline)
are used or stored.
• Mount to a structure that can safely support the weight
of the unit, accessories, ducting and a full water
reservoir.
• Mounting location should be solid enough to dampen
the vibration and operational noise of the unit.
• Mount the unit in a location which will not adversely
affect occupants, building components, or valuable
possessions.
• Leave enough space for maintenance.
• Install at least 3 ft. away from sources that may create
electronic interference.
NOTES:
• R-410A refrigerant is a safe, nontoxic, and
nonflammable refrigerant. However, if there is a
concern about refrigerant concentration in the case of
leakage, add extra ventilation.
• Reference local building codes for ceiling mounted
equipment and earthquake safety standards (this
unit is not designed for or certified against OSHPD
Seismic Compliance and Safety standards).
Air Flow
> 12 in
> 12 in
> 12 in
> 6 in
B
A
Model A- in (mm) B- in (mm)
USYM09UCDSA 30 (762)
24 3/8 (620)
USYM12UCDSA 30 (762)
USYM18UCDSA 45 11/16 (1162)
USYM24UCDDA 45 11/16 (1162)
USYM30UCDDA 61 1/2 (1562)
USYM36UCDDA 61 1/2 (1562)
USYM42UCDDA 61 1/2 (1562)
USYM48UCDDA 61 1/2 (1562)
Air Delivery Clearances
Make certain to maintain proper clearances around the
Ducted unit.
Inadequate clearances can cause system operation and
temperature control problems.
Service and Maintenance Clearances
Make sure there are adequate clearances for future
maintenance and service. Allow enough room to access
the condensate pump assembly and the electrical
control box.
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