628792-BTG-G-0418
Ducted Systems 5
Guide Specifications
SPLIT SYSTEM COOLING ONLY CONDENSING
UNITS
MODELS YJ-30, -40 AND -50
THE INSTALLER SHALL:
• Furnish Ducted Systemsair-cooled condensing units or
equivalent in accordance with the performance schedule
shown on the plans, and
• Install each unit as shown on the plans in accordance
with:
• The manufacturers recommendations and
• All applicable national and local codes
EACH UNIT SHALL BE:
• CSA approved.
• Completely assembled for one-piece shipping and rig-
ging.
• Leak pressure and functionally tested at the factory to
assure a trouble-free start-up after installation.
• Covered by a 1-year limited parts warranty on the com-
plete unit.
• In current production with published literature available
to check performance, limitations, specifications, power
requirements, dimensions, operation and appearance.
EACH UNIT SHALL HAVE:
• A steel angle frame to provide the rigid support required
for shipping, rigging and years of dependable operation.
• Zinc-coated steel that has been finished by a powder
paint process to provide a long lasting, quality appear-
ance.
• Removable panels for easy access to all internal compo-
nents during maintenance and service.
THE DIMENSIONS OF EACH UNIT SHALL:
• Not exceed those specified on the plans.
EACH COMPRESSOR SHALL:
• Be mounted on isolators to minimize the transmission of
vibration.
ALL CONDENSER COILS SHALL:
• Be draw through design.
• Be constructed of copper tubes arranged in staggered
rows and mechanically expanded into aluminum fins.
THE CONDENSER FAN MOTOR(S) SHALL:
• Be directly connected to the condenser fans.
• Have permanently lubricated ball bearings.
• Have inherent overload protection.
• Motors shall be three phase.
• The propeller-type condenser fans shall be arranged for
vertical discharge of the condenser air.
THE WIRING FOR EACH UNIT SHALL INCLUDE:
• A crankcase heater (one per compressor)
• All 24-volt temperature control circuit.
• Both high and low pressure cutouts.
• Solid-state or internal line break compressor motor pro-
tection.
• Condenser fan motor control to assure stable operation
at ambient temperatures down to 40ºF.
THE REFRIGERANT PIPING of each system shall include:
• A filter-drier shipped for field installation.
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