Bryant 355CAV installation instructions Location, Prohibit Installation on Back

355CAV

NOTE: See Fig. 14 or tube routing label on main furnace door to check for proper connections.

Relocate tubes as described below.

1.Disconnect collector box pressure tube (pink label) at- tached to pressure switch.

2.Extend collector box pressure tube (green label) which was previously connected to condensate trap relief port connection by splicing to small diameter tube (factory- supplied in loose parts bag.)

3.Connect collector box pressure tube (green label) to pres- sure switch connection labeled COLLECTOR BOX.

4.Use remaining small diameter tube (factory-supplied in loose parts bag) to extend collector box pressure tube (pink label) which was previously connected to pressure switch.

5.Route this extended tube (pink label) to condensate trap relief port connection.

6.Determine appropriate Length, cut, and connect tube.

7.Clamp tube to relief port connection.

Condensate Trap Freeze Protection

Refer to condensate Drain Protection section for recommendations and procedures.

Construct a Working Platform

Construct working platform where all required furnace clearances are met. (See Fig. 3 and 12 or 13.)

!CAUTION

UNIT OPERATION HAZARD

Snot be installed directly on any combustible material other than wood flooring (refer to SAFETY CONSIDERATIONS).

Sbe located so combustion-air and vent pipe maximum lengths are not exceeded. Refer to Table 7.

Sbe located where available electric power and gas sup- plies meet specifications on the furnace rating plate.

Sbe attached to an air distribution system and be located as close to the center of the distribution system as pos- sible. Refer to Air Ducts section.

Sbe provided with ample space for servicing and clean- ing. Always comply with minimum fire protection clearances shown on the furnace clearance-to-com- bustibles label. (See Fig. 3.)

This furnace may be located in a confined space without special provisions for dilution or ventilation air.

NOTE: For upflow/downflow applications install furnace so that it is level or pitched and forward within 1/2-in. (13 mm) for proper furnace operation. For horizontal applications pitch 1/4-in. (6 mm) minimum to 1/2-in. (13 mm) maximum forward to ensure proper condensate drainage from secondary heat exchangers. (See Fig. 15.)

When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air shall also be handled by ducts sealed to furnace casing. The ducts terminate outside the space containing the furnace to ensure there will not be a negative pressure condition within equipment room or space.

Failure to follow this caution may result in intermittent unit operation.

The condensate trap MUST be installed below furnace. See Fig. 6 for dimensions. The drain connection to condensate trap must also be properly sloped to an open drain.

NOTE: A 12-in. (305 mm) minimum offset pipe section is recommended with short (5 to 8 ft. or 1.5M to 2.4M) vent systems. This recommendation is to reduce excessive condensate droplets from exiting the vent pipe. (See Fig. 12, 13, or 44.)

LOCATION

General

This furnace must

FRONT

BACK

FRONT

B￿

A￿

C￿

K

A93043

Sbe installed so the electrical components are protected from water.

Fig. 16 - Prohibit Installation on Back

16