Marley
/
MH
Fluid Cooler
/
Specifications: Options
Specifications
Specification Value
18
Distribution Basin Access Platform:
11.2
Add the following paragraph in the
Access section
: Provide an external
platform near the top of the louver
face for access to the hot water dis-
tribution system. The platform shall
be heavy gauge galvanized steel with
safety grip perforations, supported by
galvanized steel framework attached
to the fluid cooler. The platform shall
be surrounded by a handrail, kneerail,
and toeboard. A permanently attached
1'-6" (457.2 mm) wide aluminum lad-
der with 3" (76.2 mm) I-beam side rails
and 1.25" (31.8 mm) diameter serrated
rungs shall extend from the base of
the tower to the top of the handrail.
Ladder Extension:
11.2
Add the following to the end of para-
graph 11.2:
Provide a ladder extension
for connection to the foot of the ladder.
This extension shall be long enough to
rise from the roof (grade) level to the
base of the fluid cooler. The installing
contractor shall be responsible for cut-
ting the ladder to length; attaching it to
the foot of the fluid cooler ladder; and
anchoring it at its base.
Ladder Safety Cage:
11.3
Add the following paragraph in the
Access section:
An aluminum safety
cage shall surround the ladder, extend-
ing from a point approximately 7'-0"
(2.134m) above the foot of the ladder
to the top of the handrail surrounding
the fan deck or platform.
Access Door Platform:
11.4
Add the following paragraph in the
Access section:
There shall be an
access platform at the base of the fluid
cooler extending from the vertical lad-
der to the endwall access door. The
platform shall be galvanized steel bar
grating, supported by galvanized steel
framework attached to the fluid cooler.
The platform shall be surrounded by a
handrail, kneerail, and toeboard.
Q
Periodic inspection and maintenance of a fluid cooler distribution
system is fundamental to preserving maximum cooling system
efficiency. All fluid coolers—crossflow or counterflow—are sub-
ject to clogging to varying degrees by waterborne contaminants
such as pipe scale and sediment. Therefore, safe and easy access
to these components is of significant value to the operator.
Access can be provided in a number of ways, including portable
ladders or scaffolding, but for maximum safety and convenience,
Marley offers a field installed access platform with guardrails to
make this task as safe and user-friendly as possible. Further, its
location on the side of the tower does not add to the height of
the unit, preserving architectural integrity. It also saves the owner
time and money, in that maintenance personnel may devote their
time to inspection rather than searching for ladders or erection of
portable scaffolding.
Q
Many fluid coolers are installed such that the base of the unit is
2
v
-0
w
(610 mm) or more above the roof or grade level. This makes
it difficult to get up to the foot of the attached ladder. The ladder
extension alleviates this problem. Marley's ladder extensions are
available in standard 5
v
-0
w
(1.524m) and 11
v
-0
w
(3.353m) lengths.
Q
To meet OSHA guidelines, towers whose fan decks are 20'-0"
(6.096m) or more above roof or grade, and which are equipped
with ladders, should have safety cages surrounding the ladders,
but with approximately 7'-0" (2.134m) clear headroom.
Q
Where fluid coolers are installed on an elevated grillage or piers,
it is often difficult to get to—and through—the access door con-
veniently. This platform provides easy, safe, and comfortable
access to that door. It also extends beyond the door to provide
ready access to the optional Control System.
MULTICHILL Refrigeration Products
SPX Cooling Technologies - Marley Cooling Towers
Cooke Industries - Phone: +64-9-579 2185 Fax: +64-9-579 2181 Email: [email protected] Web: www.cookeindustries.co.nz
