V.STEP 5 — MAKE ELECTRICAL CONNECTIONS

WARNING: Unit cabinet must have an uninter- rupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code), ANSI/NFPA (American National Standards Institute/National Fire Protection Association), latest edition, and local electrical codes. Failure to follow this warning could result in the installer being liable for personal injury of others.

A. Field Power Supply

All units except 208/230-v units are factory wired for the voltage shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power supply, the transformer must be rewired by moving the black wire from the 230-v 1/4-in. male spade terminal on the transformer and connecting it to the 200-v 1/4-in. male spade terminal on the transformer.

Refer to unit label diagram for additional information. Pig- tails are provided for field wire connections.

When installing units, provide a disconnect per NEC. Use copper conductors only when splice connectors are used.

NOTE: When accessory thru-the-bottom connections are used, refer to the accessory installation instructions for information on power wiring. Refer to Fig. 7A and 7B for drilling locations.

All field wiring must comply with NEC and local require- ments. In Canada, electrical connections must be in accor- dance with CSA (Canadian Standards Association) C22.1 Canadian Electrical Code Part One.

Install field wiring as follows (see Fig. 8-10):

1.Install conduit through side panel openings between disconnect and single point box (see Fig. 9 and 10).

2.Install power wires to terminal connections as shown in Fig. 8.

Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (see Tables 2A-2D). On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in the legend for Tables 2A and 2B, Note 2 to determine the percentage of voltage imbalance. Operation on improper line voltage or excessive phase imbal- ance constitutes abuse and may cause damage to electrical components. (Such operation would invalidate any applica- ble Bryant warranty.)

B. Field Control Wiring

Install a Bryant-approved accessory thermostat assembly according to installation instructions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense average temperature in accor- dance with thermostat installation instructions.

Route thermostat cable or equivalent single leads of colored wire from subbase terminals to low-voltage connections on unit (shown in Fig. 11) as described in Steps 1-5 below.

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft, use no. 16 AWG insulated wire (35 C minimum). For over 75 ft, use no. 14 AWG insulated wire (35 C minimum). All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat.

1.If unit is mounted on roof curb and accessory thru- the-bottom connection is used, route wire through connector provided in accessory kit through the unit basepan.

2.Pass control wires through the hole provided on unit (see connection D, Connection Sizes Table, Fig. 7A and 7B).

3.Feed wire through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig. 12. The raceway provides the UL-required (Underwriters’ Laboratories) clearance between the high-and low-voltage wiring.

4.Connect thermostat wires to screw terminals of low- voltage terminal board.

5.If unit is to be equipped with electric resistance heat, ensure thermostat on a call for heat “W” energizes “G” output. This allows fan operation on a call for heat.

575-3-60

208/230-3-60

(090-121),

460-3-60

208/230-3-60

(150,151)

 

 

LEGEND

 

C

— Contactor

Terminal Block

COMP(S)

—

Compressor(s)

Connection

IFC

—

Indoor (Evaporator)

Splice Connection

 

 

Fan Contactor

 

 

 

NEC

— National Electrical Code

Field Wiring

TB

— Terminal Block

Factory Wiring

Fig. 8 — Power Wiring Connections

—9—

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Bryant 558F installation instructions Make Electrical Connections, Field Power Supply, Field Control Wiring
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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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