York YLUA Series Operation Manual page 8

Accessories and Options - continued
PRE-COATED FIN CONDENSER COILS – The air-cooled
condenser coils are constructed of black epoxy-coated
aluminum fins. This can provide corrosion resistance
comparable to copper-fin coils in typical seashore loca-
tions. Either these or the post-coated coils (below), are
recommended for units being installed at the seashore or
where salt spray may hit the unit.
POST-COATED DIPPED CONDENSER COILS – The
unit is built with dipped and cured condenser coils. This
is another choice for seashore and other corrosive appli-
cations (with the exception of strong alkalies, oxidizers
and wet bromine, chlorine and fluorine in concentrations
greater than 100 ppm).
COPPER-FIN CONDENSER COILS – The unit con-
structed with condenser coils which have copper fins.
(This is not recommended for units in areas where they
may be exposed to acid rain).
ENCLOSURE PANELS (UNIT) – Tamperproof Enclosure
Panels prevent unauthorized access to units. Enclosure
Panels can provide an aesthetically pleasing alternative
to expensive fencing. Additionally, for proper head pres-
sure control, Johnson Controls recommends the use of
Condenser Louvered Panels for winter applications where
wind gusts may exceed five miles per hour.
The following types of enclosure panels are available:
WIRE PANELS (FULL UNIT) – Consists of welded-wire-
mesh guards mounted on the exterior of the unit. Prevents
unauthorized access, yet provides free air flow. (Factory
mounted).
WIRE/LOUVERED PANELS – Consists of welded-wire-
mesh panels on the bottom part of unit and louvered
panels on the condenser section of the unit. (Factory
mounted).
8
LOUVERED PANELS (CONDENSER COIL ONLY) – Lou-
vered panels are mounted on the sides and ends of the
condenser coils for protection. (Factory mounted).
LOUVERED PANELS (FULL UNIT) – Louvered panels
sur round the front, back, and sides of the unit. These
prevent unauthorized access and visually screen unit
components. Unrestricted air flow is permitted through
generously sized louvered openings. This option is ap-
plicable for any outdoor design ambient temperature up
to 115°F (46°C). (Factory mounted).
SOUND ATTENUATION – One or both of the following
sound attenuation options are recommended for residen-
tial or other similar sound sensitive locations:
COMPRESSOR ACOUSTIC SOUND BLANKET – Each
compressor is individually enclosed by an acoustic sound
blanket. The sound blankets are made with one layer of
acoustical absorbent textile fiber of 5/8" (15mm) thickness;
one layer of anti-vibrating heavy material thickness of 1/8"
(3mm). Both are closed by two sheets of welded PVC,
reinforced for temperature and UV resistance. (Factory
mounted).
ULTRA QUIET FANS – Lower RPM, 8-pole fan motors are
used with steeper-pitch fans. (Factory mounted).
VIBRATION ISOLATORS – Level adjusting, spring type
1" (25.4mm) or 2" (50.8mm) deflection or neoprene pad
isolators for mounting under unit base rails. (Factory
mounted).
FORM 150.63-EG4 (1012)
JOHNSON CONTROLS