Bryant 120 instruction manual Accessories, Venting

Page 26

ACCESSORIES

1.Electronic Air Cleaner (EAC)

Connect an accessory Electronic Air Cleaner (if used) using 1/4-in female quick connect terminals to the two male 1/4-in quick-connect terminals on the control board marked EAC-1 and EAC-2. The terminals are rated for 115VAC, 1.0 amps maximum and are energized during blower motor operation. (See Fig. 34.)

2.Humidifier (HUM)

Connect an accessory 24 VAC, 0.5 amp. maximum humidifer (if used) to the 1/4-in male quick-connect HUM terminal and COM-24V screw terminal on the control board thermostat strip. The HUM terminal is energized when gas valve relay (GVR) is energized. (See Fig. 34.)

NOTE: A field-supplied, 115-v controlled relay connected to EAC terminals may be added if humidifier operation is desired during blower operation.

NOTE: DO NOT connect furnace control HUM terminal to HUM (humidifier) terminal on Thermidistat, Zone Controller or similar device. See Thermidistatt, Zone Controller, thermostat, or controller manufacturer’s instructions for proper connection.

VENTING

The furnace shall be connected to a listed factory built chimney or vent or a clay-tile lined masonry or concrete chimney. Venting into an unlined masonry chimney or concrete chimney is prohibited. When an existing Category I furnace is removed or replaced, the original venting system may no longer be sized to properly vent the attached appliances. An improperly sized Category I venting system could cause the formation of condensate in the furnace and vent, leakage of condensate and combustion products, and spillage of combustion products into the living space.

312A

SETUP SWITCHES

TWINNING AND/OR

LOW-HEAT ONLY AND

COMPONENT TEST

BLOWER OFF-DELAY

TERMINAL

ACRDJ - AIR CONDITIONING

RELAY DISABLE JUMPER

24-V-THERMOSTAT

TERMINALS

HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX.)

3-AMP FUSE

LED OPERATION & DIAGNOSTIC LIGHT

115-VAC (L2) NEUTRAL

CONNECTIONS

W2

OFF

OFF

12 ON

 

LHT

 

 

Y1

DLY

 

3

 

 

DHUM

 

 

 

G

 

 

 

24V

 

 

 

TEST/TWIN

ACRDJ

COMWW1

 

 

 

HUM

PLT

 

 

 

 

 

 

Y/Y2

 

 

 

0.5-AMP024 VAC

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

FUSE 3-AMP

 

 

 

T

 

 

SEC-1 SEC-2

 

S AT

 

E

 

U

 

 

 

 

S

 

 

 

L

 

 

 

 

 

 

D

 

C

 

 

PL1

E

 

 

 

 

 

 

O

 

 

 

 

EAC-2 NEUTRAL-L2

 

 

BLW

 

 

1

BHI/LORBHT/CLR

HI HEAT

D

BLWR

PL3 1

TRANSFORMER 24-VAC

CONNECTIONS

PL1 - LOW VOLTAGE MAIN HARNESS CONNECTOR

PL3

HI HEAT

 

 

 

IDR

HSIR

IDM

IHI/LOR

 

 

 

 

 

 

 

 

 

LO HEAT

LOHEAT

COOL

1-AMP@115 VAC

L1

1 PL2

 

 

 

 

 

 

 

 

 

EAC-1

 

 

 

 

SPARE-1 SPARE-2

PR-1

HSI

HI LO

 

 

 

 

 

 

 

 

 

SPARE-1

 

 

115-VAC (L1) LINE

 

PL2 - HOT SURFACE

 

SPARE-2 COOL

 

BLOWER SPEED

VOLTAGE CONNECTION

IGNITER & INDUCER

SELECTION TERMINALS

 

 

 

 

 

 

 

MOTOR CONNECTOR

EAC-1 TERMINAL

(115-VAC 1.0 AMP MAX.)

A02017

Fig. 34 - Furnace Control-PSC Blower Motor

26

Image 26
Contents Ama CUT Hazard Safety ConsiderationsFurnace Reliability Hazard Width Bottom Flue Cabinet DimensionsIntroduction SizeInstallation Electrostatic Discharge ESD Precautions Procedure Codes and StandardsCarbon Monoxide Poisoning and Unit Damage Hazard LocationGeneral Property Damage Hazard FIRE, Injury or Death HazardFire Hazard Location Relative to Cooling EquipmentCarbon Monoxide Poisoning Hazard AIR for Combustion VentilationFurnace Corrosion Hazard Outdoor Combustion Air MethodAir for Combustion, Ventilation and Dilution for Outdoors Installation Upflow InstallationFIRE, EXPLOSION, and Carbon Monoxide Poisoning Hazard Downflow InstallationHorizontal Installation Suspended Furnace SupportFloor and Plenum Opening Dimensions Roll-Out ProtectionWidth Opening dimensionsFurnace Plenum Opening Floor Opening Casing Horizontal Unit Suspension General Requirements Filter Arrangement Carbon Monoxide Poisoning HazardAIR Ducts Ductwork Acoustical Treatment Supply Air ConnectionsAir Delivery CFM With Filter Speed External Static Pressure IN. WC Size Inlet2380 2285 2200 2085 1970 1835 Return Air Connections Air Delivery CFM With Filter*Downflow Furnaces GAS Piping Fire or Explosion HazardUpflow Return Air Configurations and Restrictions Maximum Capacity of Pipe Furnace Damage HazardElectrical Shock Hazard WiringElectrical Connections Electrical Shock and Fire Hazard Furnace MAY not Operate HazardElectrical Connection to J-BOX Electrical DataBOX Relocation Electrical Box on Furnace Casing Side. See Fig Power Cord Installation in Furnace J-BOXBX. Cable Installation in Furnace J-BOX Fire or Electrical Shock HazardTwo-Stage Furnace with Two-Speed Air Conditioner See notes 2, 11, and 12 on the page following these figures Accessories VentingGeneral Venting Requirements Masonry Chimney RequirementsChimney Inspection Chart Appliance Application Requirements Vent Height Internal Area of ChimneyUpflow Application-Vent Elbow Up Downflow Application-Vent Elbow Up Horizontal Right Application Vent Elbow Right Furnace Vent Orienta Orientation Tion PUTBTUH/HR Diameter Height FTRounded End of Knockout Burn HazardGeneral START-UP, ADJUSTMENT, and Safety CheckStart-Up Procedures Fire and Explosion HazardU.S AdjustmentsStage Furnace Setup Switch Description Altitude Derate Multiplier for U.S.ARedundant Automatic Gas Control Valve Seconds Size of Test Dial For Revolution Gas Rate cu ft/hrFurnace Overheating Hazard Speed Selection Color Speed AS ShippedDesired Heating Mode Setup Switch Blower OFF Delay SEC Check Safety ControlsStage Furnace Blower OFF delay Setup Switch Checklist BTUH/CU Altitude RangeSpecific Gravity of Natural GAS Gravity6001 to Specific Gravity of Natural GAS Altitude Range Heat Value Specific Gravity of Natural GAS Altitude RangeBTUH/CU FT FIRE, Personal Injury and Unit Damage Service and Maintenance ProceduresElectrical SHOCK, Fire or Explosion Hazard Specific Gravity of Natural GAS Heat Value AT AltitudeIntroduction Care and MaintenanceElectrical Controls and Wiring Electrical Shock Hazard Unit Operation HazardService Wiring Diagram Blower Motor and Wheel Electrical Shock Hazard Cleaning AND/OR Replacing AIR FilterFilter size information Furnace Filter Size CasingCleaning Heat Exchanger Unit Damage HazardSequence of Operation Igniter Position Top ViewTwo-Stage Heating Adaptive mode with Single-Stage Thermostat Single-Speed Cooling Single-Stage Thermostat and Two-Speed Cooling Adaptive ModeThermidistat Mode Continuous Blower Mode Wiring DiagramsTroubleshooting Troubleshooting Guide 2-Speed Blocked vent shutoff switch used in Chimney Adapter Kit Page Catalog No. II312A---45---8

120 specifications

The Bryant 120 is a remarkable system designed for residential and commercial heating and cooling needs, showcasing an impressive blend of efficiency, reliability, and advanced technology. As a part of Bryant's extensive line of HVAC solutions, the Bryant 120 stands out with its features and performance, making it an ideal choice for those seeking comfort year-round.

One of the main features of the Bryant 120 is its exceptional energy efficiency. It boasts a high Seasonal Energy Efficiency Ratio (SEER) rating, enabling homeowners to save on energy costs while enjoying consistent temperature control. This efficiency is aided by its variable-speed compressor, which allows the system to adjust its output based on current requirements, optimizing both energy consumption and comfort.

In terms of technology, the Bryant 120 incorporates advanced controls that enhance user experience and system performance. The system comes equipped with smart thermostats that allow homeowners to monitor and adjust their environment remotely. These thermostats not only provide convenience but also help in optimizing energy usage by learning the household's heating and cooling patterns.

Another characteristic of the Bryant 120 is its durable construction. The unit is built to withstand various weather conditions, featuring a robust cabinet and components designed for longevity. This durability ensures that homeowners can rely on the system for years without the need for frequent repairs or replacements.

Noise levels are also a critical consideration in HVAC systems, and the Bryant 120 addresses this with its quiet operation. The system is designed to minimize sound output, making it suitable for residential areas where noise can be a concern. This is particularly beneficial for nighttime use, providing a comfortable sleeping environment.

Additionally, the Bryant 120 supports eco-friendly refrigerants that comply with environmental standards, contributing to a reduction in greenhouse gas emissions. This commitment to sustainability reflects Bryant's dedication to creating products that are not only effective but also responsible.

Overall, the Bryant 120 encapsulates a harmonious balance of efficiency, advanced technology, durability, and quiet operation. Whether for a new installation or a replacement, the Bryant 120 presents an ideal solution to meet diverse heating and cooling requirements, enhancing comfort while prioritizing energy savings and environmental responsibility.