Bryant 558F II. Lubrication, III. Evaporator FAN Belt Inspection, Manual OUTDOOR-AIR Damper

Page 57

II. LUBRICATION

A. Compressors

Each compressor is charged with correct amount of oil at the factory.

B. Fan-Motor Bearings

Fan-motor bearings are of the permanently lubricated type. No further lubrication is required. No lubrication of condenser-fan or evaporator-fan motors is required.

III. EVAPORATOR FAN BELT INSPECTION

Check condition of evaporator belt or tension during heating and cooling inspections or as conditions require. Replace belt or adjust as necessary. Refer to Step 7 — Adjust Evaporator- Fan Speed on page 31 for proper adjustment procedures and belt tension.

IV. CONDENSER-FAN ADJUSTMENT (Fig. 40)

1.Shut off unit power supply, lockout and tag the disconnect.

2.Remove condenser-fan assembly (grille, motor, motor cover, and fan) and loosen fan hub setscrews.

3.Adjust fan height as shown in Fig. 40.

4.Tighten setscrews.

5.Replace condenser-fan assembly.

V. MANUAL OUTDOOR-AIR DAMPER

If outdoor-air damper blade adjustment is required, see Manual Outdoor-Air Damper section on page 22.

VI. ECONOMIZER ADJUSTMENT

Refer to Optional EconoMi$er IV section on page 23.

VII. REFRIGERANT CHARGE

A. Checking and Adjusting Refrigerant Charge

The refrigerant system is fully charged with R-22 refriger- ant, tested, and factory-sealed. Unit must operate in Cooling mode a minimum of 10 minutes before checking charge.

NOTE: Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R-22 charge.

A superheat charging chart is attached to the outside of the service access panel. The chart includes the required suction line temperature at given suction line pressures and outdoor ambient temperatures.

An accurate superheat, thermocouple-type or thermistor- type thermometer, and a gage manifold are required when using the superheat charging method for evaluating the unit charge. Do not use mercury or small dial-type thermometers because they are not adequate for this type of measurement.

CAUTION: When evaluating the refrigerant charge, an indicated adjustment to the specified fac- tory charge must always be very minimal. If a substan- tial adjustment is indicated, an abnormal condition exists somewhere in the cooling system, such as insuf- ficient airflow across either coil or both coils.

Proceed as follows:

1.Remove caps from low-pressure and high-pressure service fittings.

2.Using hoses with valve core depressors, attach low- pressure and high-pressure gage hoses to low- pressure and high-pressure service fittings, respectively.

3.Start unit in Cooling Mode and let unit run until sys- tem pressures stabilize.

4.Measure and record the following:

a.Outdoor ambient-air temperature (F db).

b.Evaporator inlet-air temperature (F wb).

c.Suction-tube temperature (F) at low-side service fitting.

d.Suction (low-side) pressure (psig).

5.Using “Cooling Charging Charts” compare outdoor- air temperature (F db) with the suction line pressure (psig) to determine desired system operating suction line temperature. See Fig. 41-48.

6.Compare actual suction-tube temperature with

desired suction-tube temperature. Using a tolerance of ± 3° F, add refrigerant if actual temperature is more than 3° F higher than proper suction-tube tem-

perature, or remove refrigerant if actual temperature is more than 3° F lower than required suction-tube temperature.

558F

FAN HEIGHT

‘‘A’’, in.

 

208/230 V

2.75

460 and 575 V

3.50

Fig. 40 — Condenser Fan Adjustment

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Contents Contents Safety ConsiderationsII. Field Fabricate Ductwork III. Install External Trap for Condensate Drain IV. RIG and Place UnitPositioning Roof Curb Details ‘‘A’’ ‘‘C’’558F Base Unit Dimensions 558F090,102,120,150 Base Unit Dimensions 558F091,103,121,151 558F Unit Size Physical Data 558F090,102,120,150 UnitsAshrae 90.1-1999 Compliant Units Physical Data 558F091,103,121,151 UnitsField Power Supply Field Control WiringMake Electrical Connections Voltage Compressor OFM Electric Power Disconnect Nominal Type FLA Size 150 Voltage Compressor 103 151 Type FLA 17.0 17.1 31.4 136 34.0 34.1 52.7 51.0 51.2 60.8 150 44.9 234/234 017 10.4 21.7 25.0 006 49.1 277/277 017 10.4 21.7 25.0 006 61.0 364/364 017 10.4 21.7 25.0 012 Convenience Outlet Conduit InstallationDamper Panel with Manual Outdoor-Air Damper Installed EconoMi$er IV Component Locations Barometric Flow Capacity EconoMi$er IV Sensor Usage EconoMi$er IV Control ModesOutside Air Temperature Changeover Set Points Enthalpy Changeover Set Points Page CO2 Sensor Standard Settings Typical Belt-Drive Motor Mounting for Sizes 090,091,102,103 VII. Adjust EVAPORATOR-FAN SpeedFan Rpm at Motor Pulley Settings Accessory/FIOP Static Pressure* in. wgEvaporator-Fan Motor Efficiency General FAN Performance Notes Evaporator Fan Motor DataRpm Bhp Watts External Static Pressure in. wg511 492 519 518519 518 597 709 666 916 511 492 591 680 660 885534 571 611 768 678 982 550 629 624 832519 518 597 709 666 916 727 1140 784 1378 511 492 591 680 660 885 722 1106 779 1342534 571 611 768 678 982 739 1210 795 1453 550 629 624 832 690 1051 750 1285 805 1533646 504 468 584 653 654 855663 679630 985 696 1220 756 1469 811 1731 504 468 584 653 654 855 716 1074 774 1307646 1071 711 1313 770 1568 824 1835 663 1162 726 1411 784 1672 837 1944545 607 615 755 678 903 532 559 604 702 668 846557 658 627 810 570 712 638 869545 607 615 755 678 903 735 1052 788 1202 532 559 604 702 668 846 726 990 779 1136557 658 627 810 689 963 745 1117 797 1271 570 712 638 869 699 1026 755 1184 806 13431144 3847 1134 37011153 3999 1162 4154683 726 1299 779 1481 828 1662739 1385 792 1572 840 1758 753 1474 804 1666 852 1857753 1474 804 1666 739 1385 792 1572780 1665 794 1767471 421 560 618 465 402 555 596483 461 571 665 495 503 581 715471 421 560 618 634 828 465 402 555 596 629 802483 461 571 665 644 881 495 503 581 715 654 937471 421 560 618 634 828 699 1050 757 1283 465 402 555 596 629 802 694 1021 753 1252483 461 571 665 644 881 708 1109 766 1348 495 503 581 715 654 937 717 1171 775 1416662 1361 459 384 550 575 625 778675 1454 943 2241662 1361 732 1670 794 1985 851 2307 903 2635 459 384 550 575 625 778 690 994 748 1221675 1454 745 1771 806 2093 862 2422 913 2758 689 1553 757 1877 818 2207 873 2543 924 2886494 550 571 672 638 802 484 506 562 625 630 752505 597 581 723 647 855 516 647 590 776 655 911494 550 571 672 638 802 699 941 754 1089 484 506 562 625 630 752 691 888 747 1035505 597 581 723 647 855 706 996 761 1146 516 647 590 776 655 911 714 1055 768 1207616 1233 680 1395 738 1559 791 1728 604 1155 669 1312 728 1473 782 1639627 1316 690 1481 747 1648 800 1821 639 1402 701 1570 757 1741 809 1917641 628 997 685 1167 739 1343 791 1525 841 1712697 1243 750 1423 801 1608 850 1799 709 1322 761 1506 812 1695697 1243 750 1423 801 1608 628 997 685 1167 739 1343 791 1525734 1492 784 1683 747 1582 796 1777VI. Refrigerant Service Ports Internal WiringPRE-START-UP START-UP Unit PreparationSafety Relief VIII. CoolingXII. Operating Sequence Evaporator Coil Service CleaningCondenser Coil Condensate DrainII. Lubrication VI. Economizer AdjustmentIII. Evaporator FAN Belt Inspection Manual OUTDOOR-AIR DamperVIII. HIGH-PRESSURE Switch To Use Cooling Charging ChartsIX. LOSS-OF-CHARGE Switch XI. Replacement PartsCooling Charging Chart 558F120 Cooling Charging Chart 558F091 II. ECONOMI$ER IV Troubleshooting Troubleshooting Unit TroubleshootingEconoMi$er IV Troubleshooting Completion DCV Demand Controlled Ventilation and Power ExhaustEconoMi$er IV Preparation Differential EnthalpyTypical Unit Wiring Schematic Cooling Service Analysis EconoMi$er IV Input/Output Logic Demand Control EnthalpyTerminal† Index Call for Free Catalog Service TrainingCopyright 2005 Bryant Heating & Cooling Systems Catalog no Page Temperatures START-UP ChecklistPreliminary Information III. START-UP Electrical
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558F specifications

The Bryant 558F is a highly efficient and versatile gas furnace designed to provide reliable heating for residential spaces. Known for its exceptional performance and advanced technology, the 558F caters to homeowners looking for comfort, efficiency, and sustainability in their heating solutions.

One of the primary features of the Bryant 558F is its two-stage heating capability. This system allows the furnace to operate at different levels of output, optimizing energy consumption based on the heating demands of the home. By operating at a lower stage most of the time, the 558F can maintain consistent indoor temperatures while using less energy, leading to reduced utility bills.

The furnace is also equipped with aVariable Speed ECM blower motor. This feature provides enhanced air distribution and comfort by allowing for more precise control over airflow. The variable speed operation ensures that the furnace can adjust to the heating needs of the space without the constant on-off cycling, promoting quieter operation and better efficiency.

In terms of efficiency ratings, the Bryant 558F boasts an impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 96%. This high rating indicates that the furnace converts a significant portion of its fuel into usable heat, making it an environmentally friendly choice. With lower greenhouse gas emissions, homeowners not only benefit from cost savings but also contribute to reducing their carbon footprint.

Additionally, the furnace incorporates advanced combustion technology, including a durable heat exchanger designed for longevity and efficiency. This component is vital for maximizing heat transfer while minimizing heat loss, contributing to the overall performance of the unit.

The Bryant 558F is compatible with the manufacturer's Infinity System control, providing homeowners with a user-friendly interface to manage their heating system effectively. This compatibility allows for the integration of smart home technology, enabling remote access and programmable settings for added convenience.

Installation and maintenance of the Bryant 558F are straightforward, thanks to its compact design and thoughtful layout. Homeowners can find peace of mind knowing that service and upkeep are manageable, prolonging the life of the furnace.

In summary, the Bryant 558F gas furnace combines efficiency, advanced technology, and reliability to provide exceptional indoor comfort. With its two-stage heating, variable speed blower motor, and high AFUE rating, the 558F stands out as an optimal heating solution for modern homes seeking both performance and sustainability.
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