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.
