Bryant 345MAV instruction manual II. Furnace Location Relative to Cooling Equipment

Page 12

FRONT

°F °F

RETURN

AIR

MAX 85°F MIN 55°F

A93042

NOTE: These furnaces are designed for a minimum continuous return-air temperature of 60°F or intermittent operation down to 55°F such as when used with a night setback thermostat. Return-air temperature must not exceed a maximum of 85°F. Failure to follow these return-air temperature limits may affect reliability of heat exchangers, motors, and controls.

32°F MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED

A93058

CAUTION: If these furnaces are installed in an uncon- ditioned space where ambient temperatures may be 32°F or lower, freeze protection measures must be taken.

FRONT

BACK

FRONT

B

A

C

K

A93043

II.FURNACE LOCATION RELATIVE TO COOLING EQUIPMENT

The cooling coil must be installed parallel with or on downstream side of furnace to avoid condensation in heat exchanger. When installed parallel with a furnace, dampers or other means used to control flow of air must prevent chilled air from entering furnace. If dampers are manually operated, they must be equipped with a means to prevent operation of either unit unless damper is in full-heat or full-cool position.

WARNING: Do not install furnace on its back. Safety control operation will be adversely affected. Never con- nect return-air ducts to back of furnace. Failure to follow this warning could result in fire, personal injury, or death.

CAUTION: Do not use this furnace during construction when adhesives, sealers, and/or new carpets are being installed and curing. If the furnace is required during construction, use clean outside air for combustion and ventilation. Compounds of chlorine and fluorine, when burned with combustion air, form acids which will cause corrosion of heat exchangers. Some of these compounds are released from paneling and dry wall adhesives, paints, thinners, masonry cleaning materials, and many other solvents commonly used in the construction process.

Excessive exposure to contaminated combustion air will result in safety and performance related problems.

Ð12Ð

Page 11 Page 13
Image 12
Page 11 Page 13
Contents Electrostatic Discharge ESD Precautions Ð1ÐDimensions → ÐDimensional DrawingÐ2Ð Unit SizeSafety Considerations Electrostatic Discharge ESD PrecautionsMinimum Inches Clearance to Combustible Construction → ÐClearances to CombustiblesIntroduction Applications GeneralII. Upflow Applications Condensate Trap Location Factory-Shipped OrientationÐ5Ð Condensate Trap Location Alternate Upflow OrientationPressure Switch Tubing Ð6ÐCondensate Trap Field Drain Attachment Condensate Trap Freeze Protection III. Downflow ApplicationsCondensate Trap Location Condensate Trap TubingIV. Horizontal Left SUPPLY-AIR Discharge Applications Ð8ÐHorizontal Right SUPPLY-AIR Discharge Applications Construct a Working PlatformÐ9Ð ÐAttic Location and Working Platform Front Upflow or Downflow Horizontal II. Furnace Location Relative to Cooling Equipment III. Hazardous Locations AIR for Combustion and Ventilation GeneralII. Unconfined Space III. Confined SpaceInstallation Leveling Legs if Desired Combustion AIR from Outdoors Through Vertical DuctsCombustion AIR from Outdoors Through Horizontal Ducts II. Installation on a Concrete Slab Opening DimensionsFurnace Casing Width IV. Installation in Horizontal Applications AIR DuctsGeneral Requirements Ductwork acoustical treatmentReturn Air Connections VI. Filter ArrangementÐfilter Information VII. Bottom Closure PanelVIII. GAS Piping 171⁄2-IN. Wide Casings onlyÐmaximum Capacity of Pipe CU FT PER HR Electrical ConnectionsNominal Length of Pipe FT Iron Internal Diameter Size Wiring Length FT³ CKT BKR Amps PhaseÐelectrical Data Amps SizeÐWiring Diagram II -V Wiring III. AccessoriesVenting Removal of Existing Furnaces from Common Vent SystemsII. COMBUSTION-AIR and Vent Piping GeneralCombustion Air Pipe ÐCombustion-Air Inlet Pipe Assembly Ðmaximum Allowable Vent Pipe Length FT 3001 to4001 to 5000² Ðmaximum Allowable Vent Pipe Length FT 5001 to 6000²6001 to 7000² 7001 to 8000²ÐShort Vent 5 to 8 Ft System 9001 to 10,000²Vent Extension Pipe 040 060 080 100 120III. Vent Termination IV. MultiventingCondensate Drain General Ðvent Pipe Termination ClearancesÐRoof Termination Preferred Heating Mode II. Cooling ModeIII. Continuous Blower Mode IV. Heat Pump ModeSTART-UP Procedures General Component TestComponent Test Sequence II. Prime Condensate Trap with Water→ ÐInducer Housing Drain Tube IV. AdjustmentsIII. Purge GAS Lines Set Gas Input RateBTU/CU FT AltitudeOnly 40015000 Only 50017001 7758000 Only 8001Ðaltitude Derate Multiplier for U.S.A ExampleAltitude Derate Multiplier Factor for U.S.A Set Temperature Rise Blower Off Delay Heat ModeÐgas Rate CU FT/HR ±SPEED SelectorCheck Safety Controls Check Primary Limit Control II. Check Pressure SwitchChecklist Checklistðinstallation CHECKLISTÐSTART-UPLoad Calculation Vent Piping
Related manuals
Manual 12 pages 26.52 Kb Manual 12 pages 34 Kb

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.

One standout feature of the Bryant 345MAV is its impressive energy efficiency. With a high SEER (Seasonal Energy Efficiency Ratio) rating, it operates at peak levels while consuming less energy. This not only reduces utility bills but also supports environmental sustainability, making it an ideal selection for eco-conscious consumers. The model employs variable-speed technology, which allows the system to adjust its output based on current heating and cooling needs. As a result, it provides consistent indoor comfort while minimizing temperature fluctuations.

The Bryant 345MAV incorporates advanced refrigerant technologies designed for optimal performance. It uses R-410A refrigerant, which is known for its lower environmental impact compared to traditional refrigerants like R-22. This environmentally friendly aspect aligns with regulations aimed at reducing ozone depletion, thereby promoting a greener approach to heating and cooling.

Reliability is another hallmark of the Bryant 345MAV. Engineered with precision, this model features a durable build designed to withstand varying weather conditions. The system is equipped with a robust compressor that is engineered for longevity and minimal noise during operation. Homeowners will appreciate the quiet performance of the 345MAV, ensuring peace in their living spaces.

Comfort also extends to the user experience with the inclusion of a smart thermostat option. This integration allows homeowners to manage their heating and cooling systems remotely, enhancing convenience and control. Programmable settings can optimize energy use based on individual schedules, facilitating both comfort and savings.

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.
Top Page Image Contents