Bryant 4-WAY MULTIPOISE TWO-STAGE CONDENSING GAS FURNACE 352AAV Instrucciones de operaciones descargar pdf (Pagina 37)

Table 11 – Furnace Setup Switch Description

SETUP SWITCH NO. SWITCH NAME NORMAL POSITION DESCRIPTION OF USE

S W --- 1

Adaptive Heat

Mode

OFF

When off, allows 2-stage operation with a single-stage

thermostat.Turnonwhenusing2-stage thermostat to allow Low

Heat operation when R to W/W1 closes and High Heat operation

when R to W/W1 and W2 close.

S W --- 2

Blower OFF

delay

ON or OFF

Control blower OFF delay time. Used in conjunction with SW-3.

See Table 9B.

S W --- 3

Blower OFF

delay

ON or OFF

Control blower OFF delay time. Used in conjunction with SW-2.

See Table 9B.

COMBUSTION-

AIR

COMBUSTION-

AIR

FLOW

VENT

AIR

FLOW

AIR

FLOW

AIR

FLOW

UPFLOW DOWNFLOW

HORIZONTAL-LEFT DISCHARGE HORIZONTAL-RIGHT DISCHARGE

Select 1 vent pipe connection and

1 combustion-air pipe connection.

COMBUSTION-

AIR

COMBUSTION-

AIR

COMBUSTION-

AIR

COMBUSTION-

AIR

VENT

NOTE: Select 1 vent pipe connection and

1 combustion-air pipe connection.

NOTE:

* For Non-Direct Vent (1-Pipe) system, orient elbow so that its

opening faces down.

** For Non-Direct Vent (1-Pipe) system, orient elbow so that its

opening faces sideways.

† An external trap kit (see furnace product data sheet) must be used.

†

††††

† †

Bottom combustion-air not allowed for non-direct vent

A05092

Fig. 38 -- Combustion-Air and Vent Pipe Connections

Table 12 – Blower Off Delay Setup Switch (SW) 2-Stage Units

with PSC Blower Motors

DESIRED HEATING MODE

BLOWER-OFF DELAY (SEC)

SETUP SWITCH

S W --- 2 S W --- 3

90 OFF OFF

120 OFF ON

150 ON OFF

180 ON ON

FIELD-SUPPLIED

2-IN. (51 mm) DIA.

PVC PIPE

FIELD-SUPPLIED

2-IN. (51 mm) DIA.

PVC 90° ELBOW

COMBUSTION-AIR DISC

(FACTORY-SUPPLIED IN

LOOSE PARTS BAG)

A96211

Length of Straight Pipe Portion of

Combustion-Air Inlet Pipe Assembly -- In. (mm)

CASING WIDTH A

17---1/2 (445) 8 --- 1 / 2 ±1/2 (216 ± 13)

21(533) 10---1/2 ±1/2 (267 ± 13)

24---1/2 (622) 12 ±1/2 (318 ± 13)

Fig. 39 -- Combustion--Air Inlet Pipe Assembly

NOTE: (Direct Vent/2-pipe ONLY) vent pipe system has the

same diameter and same length as combustion air pipe mentioned

in section “Assembly of Combustion Air Pipe (Direct Vent/2-Pipe

system ONLY).”

NOTE: Do not count elbows or pipe sections in terminations or

within furnace (all elbows shown in Fig. 44 and Fig. 45 are not be

to counted).

2. Determine location of vent pipe connection to inducer

housing as shown in Fig. 38 for application.

3. Install vent pipe grommet (factory-supplied in loose parts

bag) into selected furnace casing vent pipe hole. (See

Fig. 44.)

4. Reposition elastomeric (rubber) inducer housing outlet cap

and clamp to appropriate unused inducer housing

connection. Tighten clamp.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in unit component

damage.

Inducer housing outlet cap must be installed and fully seated

against inducer housing. Clamp must be tightened to prevent

any condensate leakage.

CAUTION

352AAV

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 61 62

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Bryant 4-WAY MULTIPOISE TWO-STAGE CONDENSING GAS FURNACE 352AAV Instrucciones de operaciones Pagina 37

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