Bryant 345MAV Safety Considerations, Electrostatic Discharge ESD Precautions, Ð3Ð

Page 3

SAFETY CONSIDERATIONS

Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified person- nel should install, repair, or service heating equipment. Untrained personnel can perform basic maintenance functions such as clean- ing and replacing air filters. All other operations must be per- formed by trained service personnel. When working on heating equipment, observe precautions in literature, on tags, and on labels attached to or shipped with unit and other safety precautions that may apply.

Follow all safety codes, including the National Fuel Gas Code (NFGC) NFPA 54/ANSI Z223.1-1996, and the Installation Stan- dards, Warm Air Heating and Air Conditioning Systems (NFPA 90B) ANSI/NFPA 90B. In Canada, refer to the current edition of the CAN/CGA-B149.1 and .2-M95 National Standard of Canada, Natural Gas and Propane Installation Codes (NSCNGPIC). Wear safety glasses and work gloves. Have a fire extinguisher available during start-up and adjustment procedures and service calls.

Recognize safety information. This is the safety-alert symbol. When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAU- TION. These words are used with the safety-alert symbol. DAN- GER identifies most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to

identify unsafe practices which would result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

CAUTION: Electrostatic discharge can affect electronic components. Take precautions during furnace installation and servicing to protect the furnace electronic control. Precautions will prevent electrostatic discharges from personnel and hand tools which are held during the procedure. These precautions will help to avoid exposing the control to electrostatic discharge by putting the furnace, the control, and the person at the same electro- static potential.

1.Disconnect all power to the furnace. DO NOT TOUCH THE CONTROL OR ANY WIRE CONNECTED TO THE CONTROL PRIOR TO DISCHARGING YOUR BODY'S ELECTROSTATIC CHARGE TO GROUND.

2.Firmly touch a clean, unpainted, metal surface of the furnace chassis which is close to the control. Tools held in a person's hand during grounding will be satisfactorily discharged.

3.After touching the chassis you may proceed to service the control or connecting wires as long as you do nothing that

INSTALLATION

This forced air furnace is equipped for use with natural gas at altitudes 0 - 10,000 ft (0 - 3,050m), except 140 size Furnaces are only approved for altitudes 0 - 7,000 ft. (0 - 2,135m).

An accessory kit, supplied by the manufacturer, shall be used to convert to propane gas use or may be required for some natural gas applications.

This furnace is for indoor installation in a building constructed on site. This furnace may be installed in a manufactured (mobile) home when stated on rating plate and using factory authorized kit.

This furnace may be installed on combustible flooring in alcove or closet at minimum clearance from combustible material.

This appliance requires a special venting system. Refer to the installation instructions for parts list and method of installation. This furnace is for use with schedule-40 PVC, PVC-DWV, or ABS-DWV pipe, and must not be vented in common with other gas-fired appliances. Construction through which vent/air intake pipes may be installed is maximum 24 inches (600 mm), minimum 3/4 inches (19 mm) thickness (including roofing materials).

Furnace must be installed level, or pitched forward within 1/2 inch of level for proper drainage. Failure will result in equipment or property damage. See Installation Manual for IMPORTANT unit support details on horizontal applications.

LEVEL (0")

LEVEL (0")

TO

TO

1/2" MAX

1/2" MAX

UPFLOW OR

FRONT

FRONT

DOWNFLOW

HORIZONTAL

 

MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION

This furnace is approved for UPFLOW, DOWNFLOW and HORIZONTAL installations.

ALL POSITIONS:

*Minimum front clearance for service 30 inches (762mm).

†† 140 size furnaces require 1 inch back clearance to combustible materials.

DOWNFLOW POSITIONS:

†For installation on combustible floors only when installed on special base No. KGASB0201ALL, Coil Assembly, Part No. CD5 or CK5, or Coil Casing, Part No. KCAKC.

HORIZONTAL POSITIONS:

§Clearance shown is for air inlet and air outlet end.

Line contact is permissible only between lines formed by intersections of top and two sides of furnace jacket, and building joists, studs, or framing.

Ø120 and 140 size Furnaces require 1 inch bottom clearance to combustible materials.

324999-201 REV. A

(LIT. TOP)

Clearance arrows do not change with furnace orientation.

††0"

B A C K

SIDE

0"

§

Clearance in inches .

1"

TOP/PLENUM

 

 

 

 

 

0"

§

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

I

 

 

 

 

E

S

 

 

 

C

 

 

 

 

 

 

A

 

 

 

 

 

 

 

N

 

 

 

 

 

 

R

 

 

 

 

 

 

U

 

 

 

 

 

 

 

F

 

 

T

 

 

 

 

 

 

 

N

 

 

 

 

 

 

O

 

 

 

 

 

R

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

S E

R VI

 

 

 

F R

 

 

 

C E

*

 

O

 

 

 

 

 

N T

 

 

 

30

 

 

 

3"

 

 

MIN

 

 

 

 

 

 

 

BOTTOM

 

 

 

 

 

 

 

0"

† Ø Vent clearance to combustibles 0".

A99101

→Fig. 3ÐClearances to Combustibles

Ð3Ð

Page 2 Page 4
Image 3
Page 2 Page 4
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 Ð5ÐPressure Switch Tubing Ð6ÐCondensate Trap Field Drain Attachment Condensate Trap Tubing Condensate Trap Freeze ProtectionIII. Downflow Applications Condensate Trap LocationÐ8Ð IV. Horizontal Left SUPPLY-AIR Discharge ApplicationsHorizontal 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. Confined Space III. Hazardous LocationsAIR for Combustion and Ventilation General II. Unconfined 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 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 PipingÐmaximum Capacity of Pipe CU FT PER HR Electrical ConnectionsNominal Length of Pipe FT Iron Internal Diameter Size Amps Size WiringLength FT³ CKT BKR Amps Phase Ðelectrical DataÐWiring Diagram Removal of Existing Furnaces from Common Vent Systems II -V WiringIII. Accessories VentingII. COMBUSTION-AIR and Vent Piping GeneralCombustion Air Pipe ÐCombustion-Air Inlet Pipe Assembly Ðmaximum Allowable Vent Pipe Length FT 3001 to4001 to 5000² 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 8000Ðaltitude Derate Multiplier for U.S.A ExampleAltitude Derate Multiplier Factor for U.S.A ±SPEED Selector Set Temperature RiseBlower Off Delay Heat Mode Ðgas Rate CU FT/HRCheck Safety Controls Check Primary Limit Control II. Check Pressure SwitchChecklist Vent Piping ChecklistðinstallationCHECKLISTÐSTART-UP Load Calculation
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