Carrier 58MXA Product Data page 3

NOTES:
1. The 58MXA Furnaces are for use with natural gas, but can be field converted for propane gas with a factory-authorized
and listed accessory conversion kit.
2. Component location and configuration may be different than shown above.
1 Burner sight glass for viewing burner flame.
2 Burner assembly (inside), operates with energy-
saving, inshot burners and hot surface ignitor for
safe, dependable heating.
3 Combustion-air intake connection to ensure
contaminant-free air (right or left side).
4 Redundant gas valve, safe, efficient, features 1
gas control with 2 internal shutoff valves.
5 Junction box for 115-v electrical power supply.
6 Vent outlet uses sealed PVC pipe to carry vent
gases from the furnace's combustion system
(right or left side).
7 Secondary condensing heat exchanger (inside),
wrings out more heat through condensation of
gases. Constructed with Polypropylene-
laminated steel to ensure durability.
8 Pressure switch ensures adequate flow of flue
products through furnace and out vent system.
9 Inducer motor pulls hot flue gases through the
heat exchangers, maintaining negative pressure
for added safety.
10 Condensate drain connection collects moisture
condensed during the combustion process.
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11 Heavy-duty blower circulates air across the heat
exchangers to transfer heat into the
home.
12 Air filter and retainer may be used for side return
application.
13 Rollout switch (manual reset) to prevent
overtemperature in burner area.
14 Primary serpentine heat exchanger (inside).
Stretches fuel dollars with the S-shaped heat-flow
design. Solid weld-free construction of corrosion-
resistant aluminized steel means reliability.
15
3-amp fuse provides electrical and component
protection.
16 Light emitting diode (LED) on control center.
Code lights are for diagnosing furnace operation
and service requirements.
17 Control center.
18 Blower access panel safety interlock switch.
19 Transformer (24v) behind control center
provides low-voltage power to furnace control
center and thermostat.
A98292
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