Bryant 340MAV instruction manual Introduction, General, II. Upflow Applications

Page 6

PLUG

CAP

COLLECTOR BOX DRAIN TUBE (BLUE & WHITE STRIPED)

COLLECTOR BOX TUBE (PINK)

COLLECTOR BOX TUBE (GREEN)

INDUCER HOUSING (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE)

COLLECTOR BOX DRAIN TUBE (BLUE)

FIELD-INSTALLED FACTORY-SUPPLIED DRAIN TUBE COUPLING (LEFT DRAIN OPTION)

CONDENSATE

TRAP

PLUG

CAP

COLLECTOR BOX DRAIN TUBE (BLUE & WHITE STRIPED)

COLLECTOR BOX

TUBE (PINK)

COLLECTOR BOX

TUBE (GREEN)

COLLECTOR BOX DRAIN TUBE (BLUE)

CONDENSATE

TRAP

FIELD-INSTALLED

FACTORY-SUPPLIED

DRAIN TUBE

FIELD-INSTALLED FACTORY-SUPPLIED 1⁄2-IN. CPVC STREET ELBOWS (2) FOR LEFT DRAIN OPTION

 

INDUCER

 

HOUSING

FIELD-INSTALLED

DRAIN TUBE

(VIOLET)

FACTORY-SUPPLIED

 

DRAIN TUBE

 

COUPLING (RIGHT

 

DRAIN OPTION)

 

A00288

A00289

Fig. 6—Factory-Shipped Upflow Tube Configuration

(Shown With Blower Access Panel Removed)

4.If you touch ungrounded objects (and recharge your body with static electricity), firmly touch a clean, unpainted metal surface of the furnace again before touching control or wires.

5.Use this procedure for installed and uninstalled (un- grounded) furnaces.

6.Before removing a new control from its container, dis- charge your body’s electrostatic charge to ground to protect the control from damage. If the control is to be installed in a furnace, follow items 1 through 5 before bringing the control or yourself into contact with the furnace. Put all used AND new controls into containers before touching ungrounded objects.

7.An ESD service kit (available from commercial sources) may also be used to prevent ESD damage.

INTRODUCTION

The model 340MAV 4-way multipoise, Gas-Fired, Category IV, direct-vent condensing furnace is available in model sizes ranging in input capacities of 40,000 to 138,000 Btuh.

Fig. 7—Alternate Upflow Tube Configuration and

Trap Location

APPLICATIONS

→CAUTION: Local codes may require a drain pan under

entire furnace and condensate trap when a condensing furnace is used in an attic application or over a finished ceiling. Failure to follow this caution will result in minor property damage.

I. GENERAL

Some assembly and modifications are required for furnaces installed in any of the 4 applications shown in Fig. 1. All drain and pressure tubes are connected as shown in Fig. 6. See appropriate application instructions for these procedures.

II. UPFLOW APPLICATIONS

An upflow furnace application is where furnace blower is located below combustion and controls section of furnace, and conditioned air is discharged upwards.

A.Condensate Trap Location (Factory-Shipped Orientation)

The condensate trap is factory installed in the blower shelf and factory connected for UPFLOW applications. A factory-supplied tube is used to extend the condensate trap drain connection to the

—6—

Page 5 Page 7
Image 6
Page 5 Page 7
Contents Electrostatic Discharge ESD Precautions Safety ConsiderationsMultipoise Orientations Dimensions Unit SizeVI. GAS Piping and GAS Pipe Pressure Testing SafetyII. General Installation Codes and StandardsElectrostatic Discharge ESD Precautions VII. Electrical ConnectionsGeneral IntroductionApplications II. Upflow ApplicationsCondensate Trap Location Alternate Upflow Orientation Pressure Switch TubingCondensate Trap Tubing Factory-Shipped Orientation Condensate Trap Tubing Alternate Upflow OrientationIII. Downflow Applications Condensate Trap LocationCondensate Trap Tubing Horizontal Left Tube Configuration IV. Horizontal Left SUPPLY-AIR Discharge Applications Construct a Working PlatformHorizontal Right SUPPLY-AIR Discharge Applications Attic Location and Working Platform Location Furnace Location for Proper Condensate Drainage II. Furnace Location Relative to Cooling EquipmentIII. Installation in Horizontal Applications II. Installation in Upflow or Downflow ApplicationsInstallation Leveling Legs if Desired III. Hazardous LocationsOpening Dimensions Furnace Plenum Opening Floor Opening CasingWidth Duct Flanges II. Ductwork Acoustical TreatmentFilter Arrangement III. Supply AIR ConnectionsIV. Return AIR Connections Filter InformationMaximum Capacity of Pipe VI. Bottom Closure PanelVII. GAS Piping Casings onlyFire or Explosion Hazard Electrical ConnectionsWiring III AccessoriesPCB Removal of Existing Furnaces from Common Vent Systems Electrical DataDirect Venting II. COMBUSTION-AIR and Vent PipingControl Center COMBUSTION-AIR and Vent Pipe Termination Clearances Clearance FTCombustion-Air and Vent Pipe Diameter ExampleCombustion-Air and Vent Pipe Attachment COMBUSTION-AIR Intake Housing Plug Fitting Short Vent 5 to 8 Ft SystemMaximum Allowable Pipe Length FT Altitude FT6001 to 7000‡ Air Intake Housing Plug Fitting Drain Vent Extension Pipe Extended Exposed Sidewall PipesTwo-Pipe Termination Kit Concentric Vent/Air Termination Kit IV. Multiventing and Vent TerminationsRoof Termination Preferred Sidewall Termination of 12 in. or Less Condensate Drain General II. ApplicationIII. Condensate Drain Protection III. Continuous Blower Mode Heating ModeII. Cooling Mode IV. Heat Pump ModeComponent Test START-UP Procedures GeneralIV. Adjustments II. Prime Condensate Trap with WaterInducer Housing Drain Cap BTU/CU FT Orifice Manifold 625 650 Only 7001 675 725 8000 775 750 15% 825 2001to 725 750 Only 4001 775 800 825 5000 875 850 900 925 United States Example 100,000 Btuh Input Furnace Installed AT 4300 FTAltitude Derate Multiplier CanadaGAS Rate CU FT/HR Blower OFF Delay Setup PositionCheck Safety Controls Speed SelectorII. Check Pressure Switch ChecklistCheck Primary Limit Control Load Calculation CHECKLIST-INSTALLATIONCHECKLIST-START-UP Combustion AIR Vent Piping
Related manuals
Manual 12 pages 2.16 Kb Manual 44 pages 12.97 Kb
Top Page Image Contents