that have burned through from the interior shall receive a final shop
docket of zinc-rich protective paint according to ASTM D 520 Type I.
2.12
FIELD PAINTING
Clean, pretreat, prime and paint metal surfaces; except aluminum surfaces
need not be painted. Apply coatings to clean dry surfaces. Clean the
surfaces to remove dust, dirt, rust, oil and grease by wire brushing and
solvent degreasing prior to application of paint, except metal surfaces
subject to temperatures in excess of 50 degrees C 120 degrees F shall be
cleaned to bare metal. Where more than one coat of paint is specified,
apply the second coat after the preceding coat is thoroughly dry. Lightly
sand damaged painting and retouch before applying the succeeding coat.
Color of finish coat shall be aluminum or light gray.
a. Temperatures less than 50 degrees C 120 degrees F: Immediately
after cleaning, the metal surfaces subject to temperatures less than 50
degrees C 120 degrees F shall receive one coat of pretreatment primer
applied to a minimum dry film thickness of 0.0076 mm 0.3 mil, one coat
of primer applied to a minimum dry film thickness of 0.0255 mm one mil;
and two coats of enamel applied to a minimum dry film thickness of
0.0255 mm one mil per coat.
b. Temperatures between 50 and 205 degrees C 120 and 400 degrees F:
Metal surfaces subject to temperatures between 50 and 205 degrees C 120
and 400 degrees F shall receive two coats of 205 degrees C 400 degrees F
heat-resisting enamel applied to a total minimum thickness of 0.05 mm
two mils.
c. Temperatures greater than 205 degrees C 400 degrees F: Metal
surfaces subject to temperatures greater than 205 degrees C 400 degrees
F shall receive two coats of 315 degrees C 600 degrees F heat-resisting
paint applied to a total minimum dry film thickness of 0.05 mm two mils.
2.13
SUPPLEMENTAL COMPONENTS/SERVICES
2.13.1
Chilled, Condenser, or Dual Service Water Piping and Accessories
The requirements for chilled, condenser, or dual service water piping and
accessories are specified in Section 15181 CHILLED, CHILLED-HOT, AND
CONDENSER WATER PIPING SYSTEMS
2.13.2
Refrigerant Piping
The requirements for refrigerant piping are speicified in Section 15182
REFRIGERANT PIPING.
2.13.3
Water or Steam Heating System Accessories
The requirements for water or steam
heating accessories such as expansion
tanks and steam traps are specified
in Section [15569A WATER AND STEAM
HEATING; OIL, GAS OR BOTH; UP TO 20
MBTUH] [15185N LOW TEMPERATURE WATER
[LTW] HEATING SYSTEM] [15183N STEAM
SYSTEM AND TERMINAL UNITS].
2.13.4
Condensate Drain Lines
Provide and install condensate drainage for each item of equipment that
generates condensate in accordance with Section [15400A PLUMBING, GENERAL
PURPOSE] [15181 CHILLED, CHILLED-HOT, AND CONDENSER WATER PIPING SYSTEMS]
SECTION 15895
Page 54
Previous Page
