SPX Cooling Technologies FSIG-TS-08A Specifications, Specification Value, 9.0Access and Safety

Marley / Sigma F Series CoolingTower / Specifications: Base 18

Specifications Specification Value

9.0Access and Safety:

9.1	Single cell towers shall include a	■ The access doors on other towers may be unreasonably small.
	33" (838 mm) wide by 61" (1.55 m)	Specifying the size of the door will cause those bidders to take
	high molded FRP access door in one	exception, alerting you to a potential maintenance headache.
	endwall casing for access to the inte-	Good maintenance practice requires periodic access to the top of
	rior of the tower. Casing access door
	shall be hinged and equipped with a	the tower to inspect the distribution basins, as well as the struc-
	latch operable from both inside and	tural integrity of the fan deck, fan cylinder, and fan—especially
	outside the tower. Multicell towers	the fan blade securing hardware. And there are no induced-draft
	shall have an access door in both	cooling tower designs that are immune to this need! Please
	endwalls, and shall include a hinged	beware of those manufacturers who suggest otherwise.
	door in each transverse partition to
	give free access through the tower.
9.2	The top of the tower shall be equipped	For the comfort and safety of your
	with a sturdy 42" (1067 mm) high fiber-	operating personnel, the Sigma
	glass guardrail system, complete with	F Series includes a ladder and
	top rails, intermediate rails, and toe-	guardrail of the quality and
	boards conforming to OSHA standards.	design indicated—and we
	Guardrail posts shall be extensions of	strongly recommend that
	the tower columns.	you require it of all bidders!
9.3		Portable ladders and other
	One endwall of the tower shall be	“make-do” access means are
	equipped with a 20" (508 mm) wide	inappropriate for equipment of
	aluminum vertical ladder, supported	this size and complexity.
	by hot-dip galvanized steel brackets
	through-bolted to the endwall struc-
	ture. Ladder shall rise from the cold
	water basin level to the top of the fan
	deck guardrail, and shall be designed
	and installed in conformance with
	OSHA standards. A horizontal-swing,
	gravity-closing safety bar shall be pro-
	vided across the ladder opening at the
	fan deck.
10.0	Cold Water Basin:
10.1	A large galvanized, rectangular access	■ This basic specification assumes that the tower will be erected
	door shall be located on both end	over a concrete basin at grade level. If the tower is to be installed
	panels for entry into the cold water	on an elevated supporting platform, the stainless steel cold water
	basin. Rectangular panels are shall be	collection basin indicated on page 20 should be included in the
	provided for access to the fan plenum	specifications.
	area to facilitate inspection and allow
	maintenance to the fan drive system

10.2Concrete partitions, if required between cells in the cold water basin, shall be installed in accordance with manufacturer's drawings. Tower installer shall seal between tower cell partitions and basin cell partitions.