Bryant 355CAV installation instructions Location, Condenste Trap Field Drain Attachment

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355CAV

Condensate Trap Tubing

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

1.Collector Box DrainTube

a.Remove factory-installed plug from LOWER collector box drain tube (blue and white striped label).

b.Install removed clamp and plug into UPPER collector box drain tube (blue label) which was previously connected to condensate trap.

c.Connect LOWER collector box drain tube (blue and white striped label) to condensate trap. Tube does not need to be cut.

d.Clamp tube to prevent any condensate leakage.

2.Inducer Housing Drain Tube

(a.)Remove factory-installed cap and clamp from LOWER inducer housing drain connection.

(b.)Remove and discard UPPER (molded) inducer housing drain tube which was previously connected to condensate trap.

(c.)Install cap and clamp on UPPER inducer housing drain connection where molded drain tube was removed.

(d.)Use inducer housing drain extension tube (violet label and factory-suppled in loose parts bag) to connect LOWER inducer housing drain connection to condensate trap.

(e.)Determine appropriate length, cut, and connect tube to condensate trap.

(f.)Clamp tube to prevent any condensate leakage.

3.Relief Port Tube

Refer to Pressure Switch Tubing section for recommendations and procedures.

Condenste Trap Field Drain Attachment

Refer to Condensate Drain section for recommendations and procedures.

Pressure Switch Tubing

One collector box pressure tube (pink label) is factory connected to the pressure switch for use when furnace is installed in UPFLOW or HORIZONTAL LEFT applications. This tube MUST be disconnected and used for the condensate trap relief port tube. The other collector box pressure tube (green label) which was factory connected to the condensate trap relief port connection MUST be connect to the pressure switch in DOWNFLOW or HORIZONTAL RIGHT applications.

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) attached 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-suppled in loose parts bag.)

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

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

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

6.Determine appropriate lenght, 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

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. (304.8mm) minimum offset pipe section is recommended with short (5 to 8 ft or 1.5 m to 2.4 m) 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

Sbe installed so the electrical components are protected from water.

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 supplies 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 possible. Refer to Air Ducts section.

Sbe provided with ample space for servicing and cleaning. Always comply with minimum fire protection clearances shown on the furnace clearance-to-combustibles 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. (12.7mm) for proper furnace operation. For horizontal applications pitch 1/4-in. (6mm) minimum to 1/2-in. (12.7mm) 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.

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Contents Installation Instructions Table of ContentsRequired Notice for Massachusetts Installations Safety Considerations CUT HazardDimensions In. / mm Dimensional DrawingInstallation Codes and Standards Applications Electrostatic Discharge ESD PrecautionsIntroduction Upflow ApplicationCondensate Trap Tubing Alternate Upflow Orientation Condensate Trap Alternate Upflow OrientationCarbon Monoxide Poisoning Hazard Condensate Trap Freeze Protection Upper Inducer Housing Drain ConnectionCondensate Trap Field Drain Attachment Downflow Applications Condensate Trap LocationHorizontal Left Tube Configuration Horizontal Left SUPPLY-AIR Discharge ApplicationsProperty Damage Manual Shutoff GAS Valve Sediment Trapcondensate TrapUnit Operation Hazard Horizontal Right SUPPLY-AIR Discharge ApplicationsConstruct a Working Platform Location Condenste Trap Field Drain AttachmentProhibit Installation on Back Fire or Death HazardUnit MAY not Operate Hazard InstallationFIRE, EXPLOSION, Injury or Death Hazard Furnace, Plenum, and Coil Assembly or Coil Box Locations Reqd PER ROD AIR Ducts Unit MAY not Operate Fire HazardFIRE, Carbon Monoxide and Poisoning Hazard Fire or Explosion Hazard Bottom Closure PanelGas Piping Removing Bottom Closure Panel Electrical Shock Hazard WiringMaximum Capacity of Pipe Disconnect Switch and Furnace Electrical Shock and Fire HazardFire or Electrical Shock Hazard Factory Installed J-Box LocationAccessories AIR for Combustion and Ventilation Fire and Explosion HazardDescription AstmMaterial Pipe Fittings CementFurnace Control Direct Vent Termination Clearance Ventilated Combustion Air Vent Termination Clearance Vent Pipe Termination for Ventilated Combustion Air System Combustion AIR Pipe Unit Corrosion HazardAttachment of Combustion Air Intake Housing Plug Fitting Combustion Air Termination Ventilated Combustion Air OptionCarbon Monoxide Poisoning Property Damage Hazard Vent PipeCombustion Air Termination-Direct Vent / 2-Pipe System Attachment of Vent Pipe304.8mm minimum 76.2mm minimum Vent Termination Extended Exposed Sidewall PipesVent Termination Kit Direct Vent/2-Pipe System Only Two-Pipe Termination Kit Direct Vent/2-Pipe System Only042060 Maximum Allowable Pipe Length Ft / M BtuhUnit Size Condensate Drain Personal Injury HazardContinuous Fan CF Setup Switches START-UP, Adjustment and Safety CheckAir Conditioning A/C Setup Switches Additional Setup Switches SW4Example of Setup Switch in Off Position Prime Condensate Trap with WaterWiring Diagram Inducer Housing Drain Tube Furnace Setup Switch DescriptionSequence of Operation Purge Gas LinesTwo-Stage Thermostat and Two-Stage Low / High Heating Thermidistat Mode See -55 for thermostat connectionsContinuous Blower Speed Selection from Thermostat Super Dehumidify ModeContinuous Blower Mode Heat PumpStep-Modulating Furnace with Single-Speed Air Conditioning Pump Furnace and Two-Speed Air Conditioner Furnace and Two-Speed Heat PumpSet Gas Input Rate Redundant Automatic Gas ValveBurner Orifice A07253 A07254 Altitude Derate Multiplier for U.S.A Burner FlameSet Thermostat Heat Anticipator Set Temperature RiseGas Rate cu Ft/Hr Check Pressure Switches ChecklistCheck Safety Controls Check Primary Limit ControlChecklist Installation Combustion and Vent Piping
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355CAV specifications

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