Bryant 345MAV instruction manual Front Upflow or Downflow Horizontal

Page 11
5. Use remaining smaller diameter tube (factory-supplied in loose parts bag) to extend collector box pressure tube (pink label) which was previously connected to pressure switch.
6. Route this extended tube (pink label) to condensate trap relief port connection.
7. Determine appropriate length, cut, and connect tube.
8. Clamp tube to relief port connection.
E. Condensate Trap Freeze Protection
Refer to Condensate Drain Protection section for recommenda- tions and procedures.
F. Construct a Working Platform
Construct working platform where all required furnace clearances are met. (See Fig. 3 and 10.)
CAUTION: The condensate trap MUST be installed below furnace. See Fig. 4 for dimensions. The drain connection to condensate trap must also be properly
sloped to an open drain.
NOTE: Vent pipe length is restricted to a minimum of 5 ft. (See Table 4.)
NOTE: A 12-in. minimum horizontal pipe section is recom- mended with short (5 to 8 ft) vent systems. This recommendation is to reduce excessive condensate droplets from exiting the vent pipe. (See Fig. 10 or 33.)
LOCATION
I. GENERAL
When a furnace is installed so that supply ducts carry air to areas outside the space containing the furnace, return air must also be handled by ducts sealed to furnace casing. The ducts terminate
INDUCER HOUSING DRAIN TUBE (VIOLET)
COLLECTOR BOX
EXTENSION TUBE
A93303
Fig. 11ÐHorizontal Right Tube Configuration
3. Route extended collector box pressure tube behind induceroutside the space containing the furnace to ensure there will not be
motor bracket then between inducer motor and pressurea negative pressure condition within equipment room or space.
switch.This furnace must be installed so electrical components are
4. Connect collector box pressure tube (green label) to pres-protected from water. sure switch connection labeled COLLECTOR BOX.

CAP

COLLECTOR BOX DRAIN TUBE (BLUE)

COLLECTOR BOX TUBE (GREEN)

 

COLLECTOR BOX EXTENSION TUBE

PLUG

COLLECTOR BOX TUBE (PINK)

CONDENSATE

TRAP

COLLECTOR BOX DRAIN TUBE

(BLUE AND WHITE STRIPED)

LEVEL (0″) FRONT TO

1⁄2″ MAX

LEVEL (0″)

TO

1⁄2″ MAX

FRONT

UPFLOW OR DOWNFLOW

HORIZONTAL

A93025

NOTE: For proper furnace operation, install furnace so that it is level or pitched forward within 1/2 in. to ensure proper condensate drainage from secondary heat exchangers.

Locate furnace as close to center of air distribution system as possible.

Locate furnace so vent pipe maximum length is not exceeded. Refer to Table 4ÐMaximum Allowable Pipe Length.

Provide ample space for servicing and cleaning. Always comply with minimum fire protection clearances shown on unit's clear- ance to combustibles label. (See Fig. 3.) Locate furnace where available electric power and gas supplies meet specifications on furnace rating plate.

CAUTION: Do not install furnace in a corrosive or contaminated atmosphere. Make sure all combustion and circulating air requirements are met.

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Contents Ð1Ð Electrostatic Discharge ESD PrecautionsUnit Size Dimensions→ ÐDimensional Drawing Ð2Ð→ ÐClearances to Combustibles Safety ConsiderationsElectrostatic Discharge ESD Precautions Minimum Inches Clearance to Combustible ConstructionCondensate Trap Location Factory-Shipped Orientation IntroductionApplications General II. Upflow ApplicationsCondensate Trap Location Alternate Upflow Orientation Ð5ÐCondensate Trap Field Drain Attachment Pressure Switch TubingÐ6Ð Condensate Trap Tubing Condensate Trap Freeze ProtectionIII. Downflow Applications Condensate Trap LocationÐ8Ð IV. Horizontal Left SUPPLY-AIR Discharge ApplicationsÐ9Ð Horizontal Right SUPPLY-AIR Discharge ApplicationsConstruct a Working Platform ÐAttic Location and Working Platform Front Upflow or Downflow Horizontal II. Furnace Location Relative to Cooling Equipment III. Confined Space III. Hazardous LocationsAIR for Combustion and Ventilation General II. Unconfined SpaceCombustion AIR from Outdoors Through Horizontal Ducts Installation Leveling Legs if DesiredCombustion AIR from Outdoors Through Vertical Ducts Furnace Casing Width II. Installation on a Concrete SlabOpening Dimensions Ductwork acoustical treatment IV. Installation in Horizontal ApplicationsAIR Ducts General RequirementsVII. Bottom Closure Panel Return Air ConnectionsVI. Filter Arrangement Ðfilter Information171⁄2-IN. Wide Casings only VIII. GAS PipingNominal Length of Pipe FT Iron Internal Diameter Size Ðmaximum Capacity of Pipe CU FT PER HRElectrical Connections Amps Size WiringLength FT³ CKT BKR Amps Phase Ðelectrical DataÐWiring Diagram Removal of Existing Furnaces from Common Vent Systems II -V WiringIII. Accessories VentingCombustion Air Pipe II. COMBUSTION-AIR and Vent PipingGeneral ÐCombustion-Air Inlet Pipe Assembly 4001 to 5000² Ðmaximum Allowable Vent Pipe Length FT3001 to 7001 to 8000² Ðmaximum Allowable Vent Pipe Length FT5001 to 6000² 6001 to 7000²9001 to 10,000² ÐShort Vent 5 to 8 Ft System040 060 080 100 120 Vent Extension PipeÐvent Pipe Termination Clearances III. Vent TerminationIV. Multiventing Condensate Drain GeneralÐRoof Termination Preferred IV. Heat Pump Mode Heating ModeII. Cooling Mode III. Continuous Blower ModeII. Prime Condensate Trap with Water START-UP Procedures GeneralComponent Test Component Test SequenceSet Gas Input Rate → ÐInducer Housing Drain TubeIV. Adjustments III. Purge GAS LinesAltitude BTU/CU FTOnly 5001 Only4001 5000Only 8001 7001775 8000Altitude Derate Multiplier Factor for U.S.A Ðaltitude Derate Multiplier for U.S.AExample ±SPEED Selector Set Temperature RiseBlower Off Delay Heat Mode Ðgas Rate CU FT/HRChecklist Check Safety Controls Check Primary Limit ControlII. Check Pressure Switch Vent Piping ChecklistðinstallationCHECKLISTÐSTART-UP Load Calculation
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345MAV specifications

The Bryant 345MAV is a premier choice in the realm of residential heating and cooling systems, encapsulating advanced technologies, high efficiency, and remarkable performance. Designed for homeowners seeking reliability and comfort, this model exemplifies modern HVAC (Heating, Ventilation, and Air Conditioning) innovations.

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In summary, the Bryant 345MAV is a top-tier solution for residential climate control, blending energy efficiency, innovative technology, and unmatched reliability. With its variable-speed operation, environmentally friendly refrigerant, and smart features, the 345MAV represents a significant advancement in the HVAC field. Homeowners investing in this model can expect a system that not only meets their heating and cooling needs but exceeds them in terms of efficiency and comfort.
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