Bryant 551A - Manual

Bryant 551A

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Table of Contents:

  • Page 3 – TABLE OF CONTENTS
  • Page 4 – OPTIONS AND ACCESSORIES
  • Page 5 – MOTORMASTER II CONTROL; LOW AMBIENT CONTROLS; MOTORMASTER IV CONTROL; BAROMETRIC RELIEF/POWER EXHAUST; MOTORMASTER I, III CONTROL
  • Page 6 – Aluminum Fin with Copper Tube Coil; Perfect HumidityTM DEHUMIDIFICATION PACKAGE
  • Page 7 – EconoMi$er is available for vertical ductwork applications; DURABLADE ECONOMIZER
  • Page 8 – CONVENIENCE OUTLET
  • Page 9 – HAIL GUARD; *Hinged access panels not available on 580F models.
  • Page 10 – FILTER HINGED PANEL OPTION*; *Hinged panels not available on 580F models.; LP CONVERSION KIT
  • Page 11 – CONTROLS; Heating, Units Without Economizer —
  • Page 13 – Perfect HumidityTM Dehumidification Option
  • Page 18 – Outdoor-Air Thermostat
  • Page 19 – TYPICAL PIPING AND WIRING — SIZES 036-150; Vertical Discharge Ducting; LEGEND; National Electrical Code; Horizontal Discharge Ducting
  • Page 20 – TYPICAL PIPING AND WIRING — SIZES 155-300
  • Page 21 – APPLICATION DATA; will not
  • Page 26 – – Packaged Rooftop
  • Page 33 – ACCESSORY DIMENSIONS
  • Page 35 – SELECTION PROCEDURE (with 558F048 example)
  • Page 36 – PERFORMANCE DATA; COOLING CAPACITIES
  • Page 38 – PERFORMANCE DATA (cont
  • Page 40 – FAN PERFORMANCE — VERTICAL DISCHARGE UNITS
  • Page 41 – FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
  • Page 50 – FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS
  • Page 51 – FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
  • Page 60 – Use of a field-supplied motor may affect wire sizing. Contact your
  • Page 61 – FAN RPM AT MOTOR PULLEY SETTINGS*; †Indicates alternate motor and drive package.
  • Page 62 – EVAPORATOR-FAN MOTOR EFFICIENCY; All indoor fan motors 5 Hp and larger meet the minimum effi-; EconoMi$er Power Exhaust Performance; EconoMi$er Barometric Flow
  • Page 63 – EVAPORATOR-FAN MOTOR PERFORMANCE
  • Page 64 – ELECTRIC HEATING CAPACITIES; MULTIPLICATION FACTORS
  • Page 70 – LEGEND AND NOTES FOR ELECTRICAL DATA TABLES PAGES 65-69
  • Page 71 – Units Only; Factory-Installed Option Code; – No factory-installed electric heaters
  • Page 78 – SELECTION PROCEDURE (With 551B048 Example)
  • Page 79 – COOLING CAPACITIES, STANDARD UNITS
  • Page 82 – COOLING CAPACITIES, UNITS WITH PERFECT HUMIDITYTM OPTION
  • Page 83 – COOLING CAPACITIES, UNITS WITH PERFECT HUMIDITYTM OPTION (cont)
  • Page 93 – GENERAL FAN PERFORMANCE NOTES; EVAPORATOR-FAN MOTOR PERFORMANCE — STANDARD MOTOR
  • Page 96 – Vertical EconoMi$er Return-Air Pressure Drop; Horizontal EconoMi$er Outdoor-Air Leakage
  • Page 98 – ELECTRICAL DATA; STANDARD MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET; See legend and notes on page 97.
  • Page 100 – STANDARD MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET
  • Page 101 – STANDARD MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET (cont)
  • Page 102 – HIGH-STATIC MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET
  • Page 104 – HIGH-STATIC MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET
  • Page 105 – HIGH-STATIC MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET (cont)
  • Page 109 – AIR QUANTITY LIMITS
  • Page 110 – capacity for your par ticular voltage.
  • Page 112 – Copper
  • Page 115 – Horizontal and Vertical Roof Curbs and Horizontal Adapter Curb
  • Page 116 – Horizontal Supply/Return Adapter Installation; CRRFCURB013A00 is a fully factory preassembled horizontal; ACCESSORY; Horizontal Adapter; Barometric Relief/Power Exhaust
  • Page 117 – Factory-Installed Convenience Outlet; Knockout
  • Page 118 – SELECTION PROCEDURE (with 559F180 example); I DETERMINE COOLING REQUIREMENTS AT DESIGN
  • Page 123 – GLYCOL HEATING PERFORMANCE
  • Page 125 – OUTDOOR SOUND POWER
  • Page 129 – ARI* CAPACITY RATINGS; Dry Bulb; 5 8 F E X 2 1 0 0 0 0 A A A A
  • Page 139 – SELECTION PROCEDURE (with 558F240 Example)
  • Page 141 – COOLING CAPACITIES LEGEND AND NOTES
  • Page 146 – Fan Performance Using Accessory Power Exhaust
  • Page 147 – See Legend and Notes on page 148.; Horizontal Supply/Return Fan Performance with CRRFCURB013A00
  • Page 148 – LEGEND AND NOTES FOR ELECTRICAL DATA TABLES
  • Page 149 – COOLING OPERATION AIR QUANTITY LIMITS
  • Page 150 – RATING
  • Page 152 – OPERATING AND RIGGING WEIGHTS
  • Page 157 – SELECTION PROCEDURE
  • Page 169 – INDEX
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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 par ticles. 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

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Summary

Page 3 - TABLE OF CONTENTS

3 Easily Accessible Refrigerant Access Ports on all dis- charge, suction, and liquid lines permit easy and accuratemeasurements. Resettable 24-V Circuit Breaker (Sizes 090-150) allows room for error without replacing transformers or fuses. Single-Side Utility Connections provide easy access to per- ...

Page 4 - OPTIONS AND ACCESSORIES

4 OPTIONS AND ACCESSORIES *Factory-installed. †Field-installed. **Design Enhancement Center (DEC) special order only. NOTES: 1. Refer to unit price pages or contact your local representative for accessory and option package information.2. Some options may increase product lead times. ITEM OPTION* AC...

Page 5 - MOTORMASTER II CONTROL; LOW AMBIENT CONTROLS; MOTORMASTER IV CONTROL; BAROMETRIC RELIEF/POWER EXHAUST; MOTORMASTER I, III CONTROL

5 OPTIONS AND ACCESSORIES (cont) MOTORMASTER II CONTROL (CONDENSER FAN CYCLING) LOW AMBIENT CONTROLS Standard units are designed to operate in cooling at outdoor temperatures down to 25 F for size 036-150 units, 40 F for size 150-300 units. Withaccessory Motormaster® control (condenser-fan cycling) ...

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