Bryant PREFERRED 577C-A Installation Instructions Manual
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Bryant PREFERRED 577C-A Installation Instructions Manual

Bryant PREFERRED 577C-A Installation Instructions Manual

14 seer single-packaged air conditioner and gas furnace system with puron r (r-410a) refrigerant single and three phase 2-5 nominal tons (sizes 24-60)
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577C- - - - A
PREFERREDt 14 SEER SINGLE- - PACKAGED AIR CONDITIONER AND
GAS FURNACE SYSTEM WITH PURONR (R- - 410A) REFRIGERANT
SINGLE AND THREE PHASE
2- - 5 NOMINAL TONS (SIZES 24- - 60)
NOTE:
Read the entire instruction manual before starting the
installation.
NOTE:
Installer: Make sure the Owner's Manual and Service
Instructions are left with the unit after installation.

TABLE OF CONTENTS

SAFETY CONSIDERATIONS
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Installation Instructions
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SAFETY CONSIDERATIONS
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Improper installation, adjustment, alteration, service maintenance,
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or use can cause explosion, fire, electrical shock, or other
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conditions which may cause death, personal injury, or property
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damage. Consult a qualified installer, service agency, or your
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distributor or branch for information or assistance. The qualified
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installer or agency must use factory- -authorized kits or accessories
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when modifying this product. Refer to the individual instructions
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packaged with the kits or accessories when installing.
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Follow all safety codes. Wear safety glasses, protective clothing,
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and work gloves. Have a fire extinguisher available. Read these
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instructions thoroughly and follow all warnings or cautions
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included in literature and attached to the unit. consult local
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building codes, the current editions of the National Fuel Gas Code
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(NFGC) NFPA 54/ANSI Z223.1, and the National Electrical Code
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(NEC) NFPA 70.
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In Canada refer to the current editions of the National Standards of
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Canada CAN/CSA- -B149.1 and .2 Natural Gas and Propane
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Installation codes, and Canadian Electrical Code CSA C22.1
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Recognize safety information. This is the safety- -alert symbol
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When you see this symbol on the unit and in instructions or manu-
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als, be alert to the potential for personal injury. Understand these
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signal words: DANGER, WARNING, and CAUTION. These
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words are used with the safety- -alert symbol. DANGER identifies
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the most serious hazards which will result in severe personal injury
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Fig. 1 - - Unit 577C- -- -A
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Summary of Contents for Bryant PREFERRED 577C-A

  • Page 1: Table Of Contents

    577C- - - - A PREFERREDt 14 SEER SINGLE- - PACKAGED AIR CONDITIONER AND GAS FURNACE SYSTEM WITH PURONR (R- - 410A) REFRIGERANT SINGLE AND THREE PHASE 2- - 5 NOMINAL TONS (SIZES 24- - 60) Installation Instructions NOTE: Read the entire instruction manual before starting the installation.

  • Page 2: Introduction

    or death. WARNING signifies hazards which could result in per- the downflow panels before rigging and lifting into place. The sonal injury or death. CAUTION is used to identify unsafe practic- panel removal process may require the unit to be on the ground. es which may result in minor personal injury or product and prop- Step 2 —...

  • Page 3: Provide Clearances

    Inspection Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier. Prior to initial use, and at monthly intervals, all rigging shackles, If a plenum return is used on a vertical unit, the return should be clevis pins, and straps should be visually inspected for any ducted through the roof deck to comply with applicable fire codes.
  • Page 4 A09477 Fig. 3 - - 577C- -- -A24- -36 Unit Dimensions...
  • Page 5 A09478 Fig. 4 - - 577C- -- -A42- -60 Unit Dimensions...
  • Page 6 Dashed lines show cross support location for large basepan units. HVAC unit HVAC unit basepan base rails Sealing Gasket Roofcurb Anchor screw Wood nailer* Flashing field Roofcurb* supplied Insulation (field supplied) Roofing material field supplied Cant strip field supplied SMALL/COMMON CURB A09413 *Provided with roofcurb A09090...
  • Page 7 CAUTION - NOTICE TO RIGGERS PRUDENCE - AVIS AUX MANIPULATEUR ACCESS PANELS MUST BE IN PLACE WHEN RIGGING. PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION. Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition DUCTS MINIMUM HEIGHT: 36"...
  • Page 8 Table 1 – Physical Data - - Unit 577C- -- -A UNIT SIZE 24040 24060 30040 30060 36060 36090 42060 42090 NOMINAL CAPACITY (ton) 2 ---1/2 2 ---1/2 3 ---1/2 3 ---1/2 SHIPPING WEIGHT** lb. SHIPPING WEIGHT** (kg) Scroll COMPRESSORS Quantity REFRIGERANT (R --- 410A) Quantity lb.

  • Page 9: Connect Condensate Drain

    Step 6 — Connect Condensate Drain 3. Secure flue hood to flue panel by inserting a single screw on the top flange and the bottom flange of the hood. NOTE: When installing condensate drain connection be sure to Step 8 — Install Gas Piping comply with local codes and restrictions.

  • Page 10: Install Duct Connections

    Table 2 – Maximum Gas Flow Capacity* LENGTH OF PIPE FT (m)† NOMINAL INTERNAL IRON PIPE DIAMETER SIZE (IN.) (IN.) (12) (15) (18) (21) (24) (27) (30) (38) (46) (53) (61) .622 — — .824 1.049 1--- 1/4 1.380 1400 1--- 1/2 1.610 2100...

  • Page 11: Install Electrical Connections

    Step 10 — Install Electrical Connections WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. The unit cabinet must have an uninterrupted, unbroken electrical ground. This ground may consist of an electrical wire connected to the unit ground screw in the control compartment, or conduit approved for electrical ground when installed in accordance with NFPA 70 (NEC) (latest edition) (in Canada, Canadian Electrical Code CSA C22.1)

  • Page 12: Special Procedures For 208- -V Operation

    2. Connect ground lead to chassis ground connection. 3. Locate the black and yellow wires connected to the line side HIGH VOLTAGE of the contactor (if equipped). POWER LEADS POWER (SEE UNIT WIRING 4. Connect field L1 to black wire on connection 11 of the SUPPLY LABEL) compressor contactor.

  • Page 13: Pre- -Start- -Up

    PRE- -START- - UP WARNING WARNING FIRE, EXPLOSION HAZARD Failure to follow this warning could result in personal ENVIRONMENTAL, FIRE, EXPLOSION, injury, death or property damage. ELECTRICAL SHOCK HAZARD Do not purge gas supply into the combustion chamber. Do Failure to follow this warning could result in personal not use a match or other open flame to check for gas leaks.

  • Page 14: Check Gas Input

    specific gravity, or propane gas with a heating value of 2500 Btu/ft at 1.5 specific gravity. IN THE U.S.A.: The input rating for altitudes above 2,000 ft (610 m) must be reduced by 4% for each 1,000 ft (305 m) above see level. For installations below 2,000 ft (610 m), refer to the unit rating plate.

  • Page 15: Check Burner Flame

    3. 112.5 x 1 =112.5 ft of gas flow/hr. REGULATOR COVER SCREW 4. 112.5 x 1050 = 118,125 Btuh input. PLASTIC If the desired gas input is 115,000 Btuh, only a minor change in the ADJUSTMENT SCREW manifold pressure is required. ON/OFF SWITCH Observe manifold pressure and proceed as follows to adjust gas REGULATOR SPRING...
  • Page 16 A09282 Fig. 14 - - 208/230- -1- -60 Connection Wiring Diagram...
  • Page 17 A09282 Fig. 14 (Cont) - - 208/230- -1- -60 Ladder Wiring Diagram...
  • Page 18 A09264 Fig. 15 - - 208/230- -3- -60 Connection Wiring Diagram...
  • Page 19 A09264 Fig. 15 (Cont) - - 208/230- -3- -60 Ladder Wiring Diagram...
  • Page 20 CONNECTION WIRING DIAGRAM DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT POWER BEFORE SERVICING NOTES: SCHEMATIC IF USED 1. IF ANY OF THE ORIGINAL WIRES FURNISHED ARE REPLACED, THEY MUST BE REPLACED WITH TYPE 460-3-60 90 DEG. C WIRE OR ITS EQUIVALENT. 2. SEE PRICE PAGES FOR THERMOSTAT AND SUBBASES. 3.
  • Page 21 LADDER WIRING DIAGRAM DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT POWER BEFORE SERVICING UNIT COMPONENT ARRANGEMENT USE COPPER CONDUCTORS ONLY OUTDOOR FAN SECTION FIELD SUPPLY 460 VAC, 60 HZ, 3PH COMPRESSOR INDOOR FAN CONTROL BOX AREA SECTION SECTION TRAN LS1 (LARGE) LS2 (SMALL) (IF USED) CONT CAP 2...

  • Page 22: Normal Operation

    Normal Operation Rollout Switch An LED (light- -emitting diode) indicator is provided on the The function of the rollout switch is to close the main gas valve in integrated gas unit controller (IGC) to monitor operation. The IGC the event of flame rollout. The switch is located above the main is located by removing the control access panel (see Fig.

  • Page 23: Indoor Airflow And Airflow Adjustments

    320 CFM/Ton) for use with either a dehumidistat or a thermostat CAUTION that supports dehumidification. This unit is factory-set up for use with a single cooling fan speed. UNIT DAMAGE HAZARD The cooling speed is marked “LOW” on the interface fan board (IFB)(See Fig.

  • Page 24: Cooling Sequence Of Operation

    that static pressure is in the acceptable range for the speed tap to be used for dehumidification cooling. HEAT HIGH 6. Use any spare vinyl plugs to cap any unused speed tap wires. NOTE: For cooling operation, the recommended airflow is 350 to 450 CFM for each 12,000 Btuh of rated cooling capacity.
  • Page 25 Table 7 – Cooling Charging Chart A09083...

  • Page 48: Maintenance

    MAINTENANCE 3. Inspect blower motor and wheel for cleanliness at the beginning of each heating and cooling season. Clean when To ensure continuing high performance and to minimize the necessary. For first heating and cooling season, inspect possibility of premature equipment failure, periodic maintenance blower wheel bi- -monthly to determine proper cleaning must be performed on this equipment.

  • Page 49: Induced Draft (Combustion Air) Blower

    f. Connect 5 pin plug and 4 pin plug to indoor blower 6. Remove wires connected to gas valve. Mark each wire. motor. 7. Remove the mounting screw that attaches the burner rack to g. Reinstall blower access panel (see Fig. 19). the unit base (See Fig.

  • Page 50: Outdoor Fan

    A07680 Fig. 21 - - Burner Rack Removed Outdoor Fan Control CAUTION Access Blower Panel Access Compressor UNIT OPERATION HAZARD Panel Access Panel Failure to follow this caution may result in damage to unit A09211 components. Fig. 19 - - Unit Access Panels Keep the condenser fan free from all obstructions to ensure proper cooling operation.

  • Page 51: Refrigerant Circuit

    FAN GRILLE MOTOR MOTOR SHAFT A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE “A” SIZE Fig. 22 - - 577C- -- -A Fan Blade Position Refrigerant Circuit Puron Items Metering Device (Thermostatic Expansion Valve ) Annually inspect all refrigerant tubing connections and the unit base for oil accumulations.

  • Page 52: Troubleshooting

    Copeland Scroll Compressor (Puron Refrigerant) Servicing Systems on Roofs with Synthetic Materials The compressor used in this product is specifically designed to POE (polyolester) compressor lubricants are known to cause long operate with Puron (R- -410A) refrigerant and cannot be term damage to some synthetic roofing materials.
  • Page 53 PURONR (R- -410A) QUICK REFERENCE GUIDE S Puron refrigerant operates at 50- -70 percent higher pressures than R- -22. Be sure that servicing equipment and replacement components are designed to operate with Puron S Puron refrigerant cylinders are rose colored. S Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.
  • Page 54 Table 13 – Troubleshooting Chart SYMPTOM CAUSE REMEDY Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, or high--pressure, Replace component loss--of--charge or low--pressure switch Compressor and condenser fan will not start. Insufficient line voltage Determine cause and correct Incorrect or faulty wiring...
  • Page 55 Table 14 – Troubleshooting Guide–Heating SYMPTOM CAUSE REMEDY Water in gas line Drain. Install drip leg. No power to furnace Check power supply fuses, wiring or circuit breaker. Check transformer. No 24--v power supply to control circuit NOTE: Some transformers have internal over--current protection that requires a cool--down period to reset.
  • Page 56 { Measured at liquid line leaving condenser. Catalog No. II577C ---08 E2011 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 11/11 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

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