Bryant manual Furnace Components, MODELS 340MAV, 350MAV, AND 352MAV FURNACES, Upflow Position

FURNACE COMPONENTS

1	Combustion-air intake connection to ensure	2	17
			3
	contaminant-free air (right or left side).	1
2	Burner sight glass for viewing burner flame.
3	Burner assembly (inside). Operates with energy-	4	12
			18
	saving inshot burners and hot surface igniter for safe,
	dependable heating.	5	5
4	Redundant gas valve. Safe and efficient. Features 1 gas	11	14
	control with 2 internal shutoff valves. Valve appearance
		16
	varies with furnace model.		15
5	Vent outlet. Uses PVC pipe to carry flue gas from	6
		9
	the furnace’s combustion system (right or left side).
6	Inducer motor. Pulls hot flue gases through the heat		13
			7
	exchangers, maintaining negative pressure for added	10
	safety.		19
7
	Blower access panel safety interlock switch.	8
8
	Air filter and retainer.

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11

Condensate drain connection. Collects moisture condensed from burned gases for disposal into home drain system. (Location in furnace varies.)

Heavy-duty blower. Circulates air across the heat exchangers to transfer heat into the home.

Secondary condensing heat exchanger (inside). Wrings out more heat through condensation. Constructed with polypropylene-laminated steel to

MODELS 340MAV, 350MAV,
AND 352MAV FURNACES
(UPFLOW POSITION)	3

12

ensure durability.

Primary serpentine heat exchanger (inside). Stretches fuel dollars with the S-shaped heat-flow

2

12

17

3

design. Solid construction of corrosion-resistant aluminized steel means reliability.

1

4

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13

14

15

16

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19

Furnace control board.

3-amp fuse provides electrical and component protection.

Light emitting diode (LED) on furnace control board. Code light is for diagnosing furnace operation and service requirements.

Pressure switch(es) ensure adequate flow of flue gas through furnace and out vent system.

Rollout switch (manual reset) to prevent overtemperature.

Junction box for 115-v electrical power supply. (May be located on right or left side)

Transformer (24v) behind furnace control board pro- vides low-voltage power to furnace control board and thermostat.

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11	5

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16	7
	19
9
	10
8

MODEL 355MAV
FURNACE (UPFLOW POSITION)	4

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