Bryant 551B Air Conditioner User Manual


 
Form No. PDS 558F.36.2
COMMERCIAL
SINGLE PACKAGE ROOFTOP
ELECTRIC COOLING UNITS
FEATURES/BENEFITS
Efficient cooling using hermetic compressors.
Full range of electric heat sizes available — exactly the right
size for your needs.
Accessory hydronic glycol heating coils are available for unit
sizes 155-300.
High reliability — non-corrosive condensate pans (036-150),
prepainted cabinets and primed interior panels, and all units
are fully protected by internal safeties.
Quietest operation in the industry — all compressors
mounted on independent vibration isolators. Standard
belt-driven evaporator fan motors on all units (except
558F036-060).
Ease of maintenance achieved by standard size filters, tool-
less filter access, simple compressor access, permanently
lubricated fan motors, optional disconnect switch, optional
115-v convenience outlet, and optional hinged access
panels.
Perfect Humidity™ dehumidification package (not available
on 558F036-150 units). This factory-installed option im-
proves the dehumidification capability of the rooftop unit and
helps control humidity levels in the conditioned space.
BRYANT MEANS TOP QUALITY AND RELIABILITY —
Each
component utilized in these units is designed and tested for a
minimum of 15 years operation under the harshest conditions.
Every unit is thoroughly run tested at the factory in each oper-
ating mode and evacuated prior to final charging. Every coil is
leak-tested with helium particles. Automated run testing allows
accurate impartial tests and measurements which are second
to none in the industry.
Each unit contains a factory printout indicating tested
pressures, amperages, dates, and inspectors, providing certifi-
cation of the unit’s status at the time of manufacture.
Units are equipped with valuable safety controls designed to
monitor and protect the unit for life. The standard safeties
include:
low-pressure/loss-of-charge switch
high-pressure switch
freeze-protection thermostat
internal compressor overload
exclusive Cycle-LOC™ circuit board that provides compres-
sor anti-cycling (except 558F036-150)
refrigerant filter drier
The cabinet is constructed of galvanized steel, bonderized and
coated with a prepainted baked enamel finish. The paint finish
is a non-chalking type, and is capable of exceeding Federal
Test Method Standard No. 141 (Method 6061) 500-Hour Salt
Spray Test. In addition, all internal cabinet panel surfaces are
primed, allowing the entire unit to have a longer life and more
attractive appearance.
EASY MAINTENANCE AND INSTALLATION
All Units are Factory Shipped in the Vertical Discharge
Configuration
for fit-up to standard roof curbs. (One acces-
sory curb fits sizes 036-072; accessory curbs fit sizes 090-150
and 155-300.) The contractor can order and install the roof
curbs early in the construction stage, before decisions on size
requirements have been made.
All Units Feature Roll-Formed Baserail
design with forklift
slots on 3 sides of the unit and rigging holes for easier maneu-
vering and installation. Stretch-wrap packaging protects the
unit during shipment and storage.
551A, 551B, 558F, 559F
Dura
Pac
and
Dura
Pac
Plus Series
Sizes 036-300
3 to 25 Tons
551B036-072
558F036-073
551A155,180
558F180-210
559F180-216
558F240
559F240-300
558F300
551B090-150
558F090-150