Carrier 58TMA → -Setup Switches on Control Center Factory Settings, Sequence of Operation, Off

Page 12

FIELD 24-V WIRING￿

FIELD 115-, 208/230-, 460-V WIRING￿ FACTORY 24-V WIRING￿ FACTORY 115-V WIRING

2-STAGE THERMOSTAT TERMINALS￿

SEVEN￿

WIRE

W2 W1￿ Y2 R￿ G Y1 C

FIELD-SUPPLIED￿ FUSED DISCONNECT

 

 

THREE-WIRE￿

 

 

 

 

208/230- OR￿

 

 

 

HEATING-￿

 

 

 

 

 

 

 

 

 

 

 

460-V￿

 

 

 

ONLY

 

 

 

 

 

 

 

 

 

 

 

THREE￿

 

 

 

 

 

 

 

 

BLK

BLK

 

 

W2

 

 

 

PHASE

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

WHT

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W/W1

 

 

 

208/230-V￿

 

GND

 

 

 

 

 

C

SINGLE￿

 

 

 

Y/Y2

 

 

PHASE

115-V FUSED￿

JUNCTION￿

 

 

 

 

 

 

Y1

 

DISCONNECT￿

BOX

CONTROL￿

R

 

 

Y2

GND

 

SWITCH￿

 

 

 

 

2-SPEED￿

 

(WHEN REQUIRED)

 

BOX

G￿

 

 

 

 

 

 

CONDENSING￿

 

 

 

 

 

24-V￿

 

 

UNIT

 

 

 

 

 

 

 

 

 

 

 

 

TERMINAL￿

 

 

 

 

 

 

 

BLOCK

NOTES:

1.

Connect Y-terminal as shown for proper operation.￿

 

 

 

FURNACE

 

 

 

 

 

 

2￿. Some thermostats require a "C" terminal connection as shown.

3.If any of the original wire, as supplied, must be replaced,￿ use same type or equivalent wire.

A97444

→Fig. 16—Heating and Cooling Application Diagram With 2-Stage Thermostat and Condensing Unit

Table 8—Blower Off Delay Setup Switch

Position

DESIRED HEATING

SETUP SWITCH

MODE BLOWER OFF

 

 

SW-3

SW-4

DELAY (SEC)

90

OFF

OFF

135

OFF

ON

180

ON

OFF

225

ON

ON

his furnace is equipped with 2 manual reset limit switches in gas control area. The switches will open and shut off power to gas valve if a flame rollout or an overheating condition occurs in gas control area. DO NOT bypass switches. Correct inadequate combustion air supply, component failure, re- stricted flue gas passageway before resetting switches.

SEQUENCE OF OPERATION

Using the schematic diagram follow sequence of operation through different modes. (See Fig. 18.) Read and follow wiring diagram very carefully.

NOTE: If power interruption occurs during "call for heat" (W/W1 or W/W1-and-W2), control starts 90-sec blower only on period 2 sec after power is restored if thermostat is still calling for gas heating. The red LED flashes code 12 during 90-sec period, after which LED will be on continuously as long as no faults are detected. After 90-sec period, furnace responds to thermostat normally.

Blower door must be installed for power to be conducted through blower door interlock switch ILK to furnace control CPU, trans- former TRAN, inducer motor IDM, blower motor BLWM, hot surface ignitor HSI, and gas valve GV.

1.Adaptive Heating Mode—Single-Stage Thermostat and 2-Stage Heating

(See Fig. 16 for thermostat connections.)

4

3

 

2

 

1

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLOWER-￿

 

LOW￿

 

HIGH￿

 

 

 

HEAT￿

 

 

 

 

OFF￿

 

 

HEAT￿

 

 

 

(ADAPTIVE￿

 

 

 

DELAY

 

ONLY

 

 

ALGORITHM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A96402

→Fig. 17—Setup Switches on Control Center (Factory Settings)

NOTE: With high-heat-only switch SW-1 off, low-heat-only switch SW-2 selects either low-heat-only operation mode when on (see item 2. below), or adaptive heating mode when off in response to "call for heat." (See Fig. 17.) When high-heat-only switch SW-1 is on, it always causes high-gas-heat operation when R-W/W1 circuit is closed, regardless of the setting of low-heat-only switch SW-2.

This furnace can operate as a 2-stage furnace with a single- stage thermostat because furnace control CPU includes a programmed adaptive sequence of controlled operation which selects low-gas-heat or high-gas-heat operation. This selection is based upon stored history of the length of previous gas heating on/off periods of single-stage thermostat.

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Contents Electrostatic Discharge ESD Precautions SUPPLY-AIR Plenum InstallationDimensional Drawing Dimensions Unit Size Vent Conn SHIP. WTMinimum Inches Clearance to Combustible Construction General Location Relative to Cooling EquipmentHazardous Locations Unconfined Space→ Downflow Installation Confined Space Air for Combustion Ventilation from OutdoorsInstallation on Combustible Floor Free Area Of Combustion Air OpeningInput Furnace Plenum Opening Floor Opening CasingInstall Furnace Construct Working PlatformTypical Attic Installation → -Horizontal Crawlspace Installation on Hanger Rods→ -Horizontal Installation on Blocks Furnace Casing Width FiltersNominal Internal Length of Pipe FT Iron Pipe Diameter Size Wiring AccessoriesSetup Switch Description Electrical DataAmps Gage FT‡ CKT BKR AMPS† → -Setup Switches on Control Center Factory Settings Desired Heating Setup Switch Mode Blower OFFDelay SEC Sequence of Operation→ -Unit Wiring Diagram Connection DiagramPage Page START-UP Procedures AdjustmentsAltitude Derate Multiplier for U.S.A United StatesExample CanadaBTU/CU FT 725 1.6 625 1.4 Gas Rate Cu Ft/Hr → -Redundant Automatic Gas Control ValveCheck Safety Controls Speed SelectionColor Speed AS Shipped Checklist Service Training

58TMA specifications

The Carrier 58TMA is a high-efficiency gas furnace designed to provide reliable heating solutions for residential spaces. As part of Carrier's extensive range of heating products, the 58TMA series exemplifies innovation in home comfort technology, offering advanced features that cater to both performance and energy savings.

One of the standout features of the Carrier 58TMA is its variable-speed blower motor. This technology allows for precise airflow control, ensuring consistent temperatures throughout the home while minimizing energy consumption. The variable-speed operation also contributes to quieter operation, enhancing indoor comfort without the disruptive noise commonly associated with traditional furnaces.

The furnace operates with a multi-stage gas valve, enhancing its efficiency. With the ability to modulate heating output based on demand, the 58TMA ensures that the home is heated only as needed. This not only improves energy efficiency but also maintains a more stable and comfortable indoor environment. The combination of the multi-stage gas valve and variable-speed blower results in significant energy cost savings for homeowners.

Another impressive aspect of the Carrier 58TMA is its high Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE of up to 96%, this gas furnace is engineered to convert a majority of the fuel it consumes into heat, reducing waste and lowering utility bills. Such efficiency ratings make the 58TMA an attractive option for eco-conscious consumers looking to minimize their carbon footprint.

In addition to efficiency and performance, the Carrier 58TMA is designed with durability in mind. The unit features a robust cabinet made from high-quality materials, along with an advanced heat exchanger that ensures long-lasting performance. Moreover, it comes equipped with an advanced electrical ignition system, providing reliable start-up under various conditions without the need for a pilot light.

For added convenience, the 58TMA can be integrated with Carrier's Smart Thermostat technology. This allows homeowners to monitor and adjust their heating settings remotely, facilitating an optimized comfort experience while further enhancing energy savings.

Overall, the Carrier 58TMA's combination of efficiency, advanced technology, and durability makes it a standout option in the market for homeowners seeking dependability and energy savings in their heating solutions. With its innovative features and user-friendly operation, the 58TMA represents a significant advancement in modern furnace design, providing peace of mind and comfort year after year.
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