]2.1.8
Condenser
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NOTE: Insert minimum temperature at which the
mechanical cooling equipment will be required to
operate.
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Provide condenser circuit pre-piped with start-up and head pressure
controls to maintain system operation at ambient temperatures down to [4.4
degrees C40 degrees F][minus 6.6 degrees C20 degrees F][_____] degrees C
degrees F.
[2.1.8.1
Air-cooled Condenser
Provide remote air-cooled condenser arranged for vertical air discharge.
The direct-driven propeller fans shall have factory balanced aluminum
blades and shall be equipped with fan guards. The coils shall be
constructed from seamless copper tubes with plate type aluminum fins. The
coils, in the production process, shall be pressure tested with compressed
air 300 psig 2068 kPa under water and verified to be leak-free. The
air-cooled condensers casings and other components shall be suitable for
outdoor location and constructed from aluminum with manufacturer's standard
corrosion-resistant finish,or galvanized steel. [An integral factory wired
and tested control panel shall be provided for the condenser.]
][2.1.8.2
Liquid-cooled Condenser
Provide cleanable, cast iron or steel shell and copper tubes, [counterflow
type] [or] [water-cooled] [or] [glycol-cooled] condenser with removable
cast iron or steel heads. The condenser shall be constructed in accordance
with ASME BPVC SEC. As an option, a coaxial (copper tube-in-copper tube)
type water-cooled condenser may be provided.
][2.1.8.3
Dry Coolers
The dry cooler shall be factory fabricated and shall comprise of casing,
coil, and fan sections. The casing shall be constructed of aluminum sheets
with aluminum legs, casing and legs provided with manufacturer's standard
corrosion resistant finish.
The cooling fluid (water or water/glycol solution) shall flow through a
coil made up of copper tubes and aluminum fins. The coils shall be leak
tested at factory at 300 psi 2068 kPa.
The fan section of the dry cooler shall comprise of factory balanced,
direct driven metal propeller fan(s) complete with slow speed motor(s) and
fan guard(s). The fan(s) shall be arranged for vertical discharge. The
electrical connections and control connections shall be provided in a
weatherproof enclosure mounted integral with the dry cooler.
As indicated on the drawings, the dry cooler shall be equipped with a
centrifugal pump [single pump] [double pump] package complete with an open
expansion tank. The pump package shall be mounted in a weatherproof
enclosure.
Provide special corrosion protection in accordance with the requirements
specified in this section in the paragraph, "Corrosion Protection For
Coastal Installations".
SECTION 15702N
Page 11
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