Daikin DPSA Manual page 32

1 .07 Warranty
PART 2: PRODUCTS
2 .01 Approved Manufacturers
A. Basis of Design: Daikin Applied
B. AAON: RL
C. Trane: Intellipak
D. Governaire
E. Seasons 4
F. Engineered Air
G. Energy Labs
2 .02 General Description
A. Each unit shall be specifically designed for outdoor
rooftop application and include a weatherproof
cabinet. Units shall be of a modular design with
factory installed access sections available to provide
maximum design flexibility.
B. Furnish unit configuration, layout, performance and
electrical characteristics as shown on project plans
and schedule.
C. The unit shall undergo a complete factory run test
prior to shipment. The factory test shall include
final test of all fan assemblies, a refrigeration circuit
runtest, a unit control system operations checkout, a
unit refrigerant leak test, and a final unit inspection.
D. The complete unit shall be ETL listed.
E. Unit shall be completely factory assembled and
shipped in one piece.
F. Unit to be shipped fully charged with R410A.
G. All units shall have decals and tags to indicate
caution areas and aid unit service. Unit nameplates
shall be fixed to the main control panel door.
Electrical wiring diagrams shall be attached to
the control panels. Installation, operating and
maintenance bulletins and start-up forms shall be
supplied with each unit.
H. Submittals must demonstrate that scheduled unit
leaving air temperature (LAT) is met, that fan
and motor heat temperature rise (TR) have been
considered, and scheduled entering air temperature
(EAT) equals mixed air temperature (MAT). Draw-
thru cooling - Scheduled EAT equals cooling coil
EAT and scheduled unit LAT equals cooling coil LAT
plus TR.
CAT 258 • REBEL APPLIED ROOFTOP
2 .03 Cabinet
A. Unit construction for all walls, doors, ceiling and
floor shall be double wall with a solid galvanized
steel liner with a thermal break integral to the panel
construction that provides a cleanable interior,
prevents conductive heat transfer through the panel,
and prevents exterior condensation on the panel.
B. Unit construction for all walls, doors, ceiling and
floor shall be double wall with a solid stainless
steel liner with a thermal break integral to the panel
construction that provides a cleanable interior,
prevents conductive heat transfer through the panel
and prevents exterior condensation on the panel.
C. Foam Insulation shall provide a minimum thermal
resistance R-value of 13.0.
D. Unit construction shall be designed to operate at
total static pessures up to 8.0 inches w.g.
E. Provide quality unit construction with performance
tested in accordance with ASHRAE Std 111 –
cabinet air leakage shall not exceed leak class 6
(C = 6), at +/- 5 in. w.c. casing pressure, where
L
maximum cabinet leakage (cfm/100 ft
surface area) = C
F. Provide quality unit construction with air leakage
less than 0.5% of design airflow up to 5 in. w.c.
G. Provide quality unit construction with air leakage
less than 1.0% of design airflow up to 7 in. w.c..
H. Exterior surfaces shall be constructed of pre-
painted galvanized steel for aesthetics and long
term durability. Paint finish to include a base primer
with a high quality, polyester resin topcoat of a
neutral beige color. Finished surface to withstand a
minimum 1000-hour salt spray test in accordance
with ASTM B117 standard for salt spray resistance.
I. Access shall be provided to filters, dampers, cooling
coils, fan sections, compressors and electrical and
controls components.
J. Access doors shall be provided for each critical
maintenance section in order to provide user easy
access to components. All access doors shall be
mounted on full length stainless steel piano hinges
and shall be secured by linkage and latch system
that is operated by a single handle. The latch system
shall feature a staggered engagement for ease
of operation and a safety catch shall protect the
user from injury in case a positive pressure door is
opened while the fan is operating. Doors secured by
multiple, mechanical fasteners are not acceptable.
K. The unit base frame shall be constructed of 13
gauge pre-painted steel to prevent base rail
corrosion.
L. The unit base shall overhang the roof curb for
positive water runoff and shall have a formed recess
that seats on the roof curb gasket to provide a
positive, weathertight seal. Lifting brackets shall be
provided on the unit base with lifting holes to accept
cable or chain hooks.
32
General Specification
of casing
2
× P .
0.65
L
www.DaikinApplied.com