Mechanical Specifications - York LX Series Technical Manual

5855836-YTG-A-0220

MECHANICAL SPECIFICATIONS

Manufacture and certifications
• Units shall be manufactured in an ISO 9001 certified facility.
• Units shall be certified by CSA to 4th Edition of UL 1995 /
CSA 22.2 and performance certified to ANSI/AHRI Standard
210/240.
• Units shall be sound tested according to ANSI/AHRI Stan-
dard 270.
• Certified matched system ratings will be available for down-
load from the AHRI online directory at www.ahridirectory.org.
• Unit packaging shall be marked, "Assembled in the USA"
Unit Application
• Units shall be approved for cooling operation between 55ºF
and 125ºF without modification.
• Units shall be approved for heating operation between 0ºF
and 75ºF without modification.
• Units shall be approved for linesets up to 80 feet equivalent
length without modification.
• Units shall be approved for installation within 6 inches of a
flat vertical wall without modification, according to the
instructions in the technical literature.
• Units shall be certified to the 5th Edition (2014) of the Florida
Building Code for both ground-mounted and rooftop-
mounted applications up to 200 feet above grade with
approved mounting kit.
Unit Access
• Units shall have a removable fan guard that can be removed
independently of the top for interior access through the top of
the unit without damaging the coil.
• Units shall have two removable stamped steel coil guards for
exterior coil access.
• Units shall have a separate compartment for electrical con-
trols that can be accessed without disturbing the unit airflow.
• Units shall have a blockoff panel that can be removed to pro-
vide interior unit access through the side of the unit.
• Units shall have a removable blockoff panel and a swing
open removable electrical panel that provides sufficient inte-
rior unit access for removing the compressor through the
side of the unit.
Unit Construction
• Units shall be shipped completely wired, piped and assem-
bled. Wiring pigtails shall be provided for field control wiring
connections. Service valves shall be provided for field refrig-
erant line connections.
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• Units shall be factory leak checked, run tested, and shipped
with a holding charge of R-410A refrigerant.
• Unit cabinet components shall be G90 equivalent steel fin-
ished with powder-coat paint rated at a minimum of 500
hours under ASTM B117 testing.
• Unit base pan shall be stamped G90 equivalent steel fin-
ished with powder-coat paint rated at a minimum of 500
hours under ASTM B117 testing.
• Units shall have a single corner post opposite the electrical
control box and two independently removable steel coil
guard panels to optimize cabinet strength and serviceability.
• Units shall have L-shaped stamped sheet metal coil guards
with interior facing extrusions for superior panel stiffness and
durability from hail and other mechanical impacts.
• Units shall have a factory installed stainless steel filter-drier
for faster installation and improved system reliability.
• Unit base valves shall be mounted diagonally on the unit
base pan with service ports that provide sufficient clearance
for low-loss hose fittings.
• Units shall provide a service port mounted in the base pan
such that panels can be removed without moving the service
port.
• Units shall be constructed with a high pressure switch and a
low pressure switch for system protection.
• Units shall be constructed with all badging and labels applied
at the factory.
Unit Components
• Compressor shall be hermetic with internal electrical over-
load protection and internal overpressure protection.
• Compressor shall be mounted on neoprene vibration isola-
tors that do not require the removal of transportation clips or
brackets.
• Outdoor fan shall be direct drive with vertical air discharge
for low sound levels.
• Outdoor fan motor shall be totally enclosed with permanently
lubricated ball bearings motors approved for vertical shaft
applications.
• Outdoor coil shall be air cooled and constructed of enhanced
aluminum fins mechanically bonded to internally enhanced Ø
7mm copper tubing.
Unit Warranties
• Unit manufacturer shall provide a limited 10-Year compres-
sor warranty without a requirement for unit registration.
• Unit manufacturer shall provide a limited 5-Year parts war-
ranty extended to 10 years with registration.
Johnson Controls Ducted Systems