Furnace Components - Carrier 58MTA User's Information Manual

FURNACE COMPONENTS

1
Combustion-air intake connection to ensure contami-
nant-free air (right or left side).
2
Burner sight glass for viewing burner flame.
3
Burner assembly (inside). Operates with energy-saving
pilot, inshot burners, and hot surface igniter for safe,
dependable heating.
4
Redundant gas valve. Safe, efficient. Features 1 gas con-
trol with 2 internal shutoff valves.
5
Vent outlet. Uses PVC pipe to carry vent gases from the
furnaces combustion system (right or left side).
6
Inducer motor. Pulls hot flue gases through the heat ex-
changers, maintaining negative pressure for added safety.
7
Blower access panel safety interlock switch.
8
Air filter and retainer.
9
Condensate drain connection. Collects moisture con-
densed from burned gases for disposal into home drain
system.
10
Heavy-duty blower. Circulates air across the heat ex-
changers to transfer heat into the home.
11
Secondary condensing heat exchanger (inside). Wrings
out more heat through condensation. Constructed with
Polypropylene-laminated steel to ensure durability.
12
Primary serpentine heat exchanger (inside). Stretches fuel
dollars with the S-shaped heat-flow design. Solid con-
struction of corrosion-resistant aluminized steel means re-
liability.
13
Control center.
14
3-amp fuse provides electrical and component protection.
15
Light emitting diode (LED) on control center. Code lights
are for diagnosing furnace operation and service require-
ments.
16
Pressure switch(es) ensure adequate flow of flue products
through furnace and out vent system.
17
Rollout switch (manual reset) to prevent overtemperature.
18 Junction box for 115-v electrical power supply. (May be
on right or left side)
19 Transformer (24v) behind control center provides low-
voltage power to furnace control center and thermostat.
20
Limit switch (manual reset) on 58MVP only.
2
1
4
5
11
16
6
9
10
8
MODELS 58MXA, 58MCA, AND 58MTA
FURNACES (UPFLOW POSITION)
2
12
1
5
11
16
9
8
MODEL 58MVP
FURNACE (UPFLOW POSITION)
3
need art
17
3
12
18
5
14
15
13
7
19
3
17
3
4
18
6
5
15
14
13
7
19
10
20
4