Daikin DCH048 Series Service Instructions Manual page 101

PRODUCT DESIGN
UNIT LOCATION
T
O PREVENT POSSIBLE EQUIPMENT DAMAGE
,
PERSONAL INJURY OR DEATH THE FOLLOWING BULLET POINTS MUST BE
OBSERVED WHEN INSTALLING THE UNIT
A I :
LL NSTALLATIONS
I N : Unit should be energized 24 hours prior
MPORTANT OTE
to compressor start up to ensure crankcase heater
has sufficiently warmed the compressors. Compres-
sor damage may occur if this step is not followed.
NOTE: This appliance is a dedicated downflow design.
Proper installation of the unit ensures trouble-free operation.
Improper installation can result in problems ranging from
noisy operation to property or equipment damages, danger-
ous conditions that could result in injury or personal property
damage. Give this booklet to the user and explain it's
provisions. The user should retain these instructions for future
reference.
G L I
ROUND EVEL NSTALLATIONS
•
When the unit is installed on the ground adjacent to the
building, a level concrete (or equal) base is recom-
mended. Prepare a base that is 3" larger than the
package unit footprint and a minimum of 3" thick.
•
The base should also be located where no runoff of water
from higher ground can collect in the unit.
R I O
OOF TOP NSTALLATIONS
•
To avoid possible property damage or personal injury, the
roof must have sufficient structural strength to carry the
weight of the unit(s) and snow or water loads as required
by local codes. Consult a structural engineer to deter-
mine the weight capabilities of the roof.
•
The unit may be installed directly on wood floors or on
Class A, Class B, or Class C roof covering material.
•
To avoid possible personal injury, a safe, flat surface for
service personnel should be provided.
U P
NIT RECAUTIONS
• Do not stand or walk on the unit.
• Do not drill holes anywhere in panels or in the base
frame of the unit(except where indicated). Unit access
panels provide structural support.
• Do not remove any access panels until unit has been
installed on roof curb or field supplied structure.
• Do not roll unit across finished roof without prior
approval of owner or architect.
• Do not skid or slide on any surface as this may damage
unit base. The unit must be stored on a flat, level
surface. Protect the condenser coil because it is
easily damaged.
6
WARNING
,
PROPERTY DAMAGE
.
O :
NLY
:
NLY
R C I
OOF URB NSTALLATIONS
Curb installations must comply with local codes and should
be done in accordance with the established guidelines of the
National Roofing Contractors Association.
,
Proper unit installation requires that the roof curb be firmly
and permanently attached to the roof structure. Check for
adequate fastening method prior to setting the unit on the
curb.
Full perimeter roof curbs are available from the factory and are
shipped unassembled. Field assembly, squaring, leveling
and mounting on the roof structure are the responsibility of the
installing contractor. All required hardware necessary for the
assembly of the sheet metal curb is included in the curb
accessory.
T
O PREVENT POSSIBLE EQUIPMENT DAMAGE
PERSONAL INJURY OR DEATH
OBSERVED WHEN INSTALLING THE UNIT
•
Sufficient structural support must be determined prior to
locating and mounting the curb and package unit.
•
Ductwork must be constructed using industry guide-
lines. The duct work must be placed into the roof curb
before mounting the package unit. Our full perimeter
curbs include duct connection frames to be assembled
with the curb. Cantilevered type curbs are not available
from the factory.
•
Curb insulation, cant strips, flashing and general roofing
material are furnished by the contractor.
The curbs must be supported on parallel sides by roof
members. The roof members must not penetrate supply and
return duct opening areas as damage to the unit might occur.
NOTE: The unit and curb accessories are designed to
allow vertical duct installation before unit placement. Duct
installation after unit placement is not recommended.
A
LL CURBS LOOK SIMILAR
CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGS ON CURB
. I
ASSEMBLY NSTRUCTIONS MAY VARY IN CURB STYLES AND SUPERCEDE
INFORMATION SHOWN
See the manual shipped with the roof curb for assembly and
installation instructions.
O :
NLY
WARNING
,
PROPERTY DAMAGE
,
THE FOLLOWING BULLET POINTS MUST BE
.
CAUTION
. T
O AVOID INCORRECT CURB POSITIONING
.
,
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