310AAV

START-UP, ADJUSTMENT, AND SAFETY

CHECK

Step 1 General

!WARNING

FIRE HAZARD

Failure to follow this warning could result in personal injury, death and/or property damage.

This furnace is equipped with manual reset limit switches in the gas control area. The switches open and shut off power to the gas valve if a flame rollout or overheating condition occurs in the gas control area. DO NOT bypass the switches. Correct inadequate combustion air supply problem before resetting the switches.

!CAUTION

CUT HAZARD

Failure to follow this caution may result in personal injury. Sheet metal parts may have sharp edges or burrs.

Use care and wear appropriate protective clothing, safety glasses, and gloves when handling parts and servicing furnaces.

1.Maintain 115-v wiring and ground. Improper polarity will result in rapid flashing LED and no furnace operation.

2.Make thermostat wire connections at the 24-v terminal block on the furnace control. Failure to make proper con- nections will result in improper operation. (See Fig. 26.)

3.Gas supply pressure to the furnace must be greater than 4.5-In. W.C. (0.16 psig ) but not exceed 14-In. W.C. (0.5 psig).

4.Check all manual-reset switches for continuity.

5.Install blower compartment door. Door must be in place to operate furnace.

6.Replace outer door.

Step 2 Start-Up Procedures

!WARNING

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal injury, death and or property damage.

Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections.

1.Purge gas lines after all connections have been made.

2.Check gas lines for leaks.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, or death.

Blower access door switch opens 115-v power to control. No component operation can occur unless switch is closed. Caution must be taken when manually closing this switch for service purposes.

3.To Begin Component Self-Test: Remove blower access door. Disconnect the thermostat R lead from the furnace control board. Manually close the blower door switch. Short (jumper) the COM-24v terminal on control to the TEST/TWIN 3/16-inch quick connect terminal on control until LED goes out (approximately 2 sec). Gas valve and humidifier will not be turned on. (See Fig. 25.)

NOTE: The furnace control allows all components, except the gas valve, to be run for short period of time. This feature helps diagnose a system problem in case of a component failure. Component test feature will not operate if any thermostat signal is present at the control.

Component test sequence is as follows:

Refer to service label attached to furnace or see Fig. 45.

a.LED will display previous status code 4 times.

b.Inducer motor starts and continues to run until Step f of component test sequence.

c.Hot surface igniter is energized for 15 sec., then off.

d.Blower motor operates on HEAT speed for 10 sec.

e.Blower motor operates on COOL speed for 10 sec.

f.Inducer motor stops.

g.Reconnect R lead to furnace control board, release blower door switch and re-install blower door.

4.Operate furnace per instruction on door.

5.Verify furnace shut down by lowering thermostat setting below room temperature.

6.Verify furnace restarts by raising thermostat setting above room temperature.

Step 3 Adjustments

Table 11—Altitude Derate Multiplier for U.S.A.

ALTITUDE

PERCENT

DERATE MULTIPLIER

FT. (M)

OF DERATE

FACTOR*

 

 

 

0–2000

0

1.00

(0---610)

 

 

 

 

 

2001–3000

8–12

0.90

(610---914)

 

 

 

 

 

3001–4000

12–16

0.86

(914---1219)

 

 

 

 

 

4001–5000

16–20

0.82

(1219---1524)

 

 

 

 

 

5001–6000

20–24

0.78

1524---1829)

 

 

 

 

 

6001–7000

24–28

0.74

(1829---2134)

 

 

 

 

 

7001–8000

28–32

0.70

(2134---2438)

 

 

 

 

 

8001–9000

32–36

0.66

(2438---2743)

 

 

 

 

 

9001–10,000

36–40

0.62

(2743---3048)

 

 

*Derate multiplier factors are based on midpoint altitude for altitude range.

!WARNING

FIRE HAZARD

Failure to follow this warning could result in injury, death and/or property damage.

DO NOT bottom out gas valve regulator adjusting screw. This can result in unregulated manifold pressure and result in excess overfire and heat exchanger failures.

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Bryant 310AAV instruction manual START-UP, ADJUSTMENT, and Safety Check, General, Start-Up Procedures, Adjustments

310AAV specifications

The Bryant 310AAV and 310JAV are high-efficiency air conditioning and heating systems designed for residential and light commercial applications. These models embody Bryant's commitment to delivering reliable comfort solutions while prioritizing energy efficiency and performance.

One of the standout features of the Bryant 310AAV and 310JAV is their impressive Seasonal Energy Efficiency Ratio (SEER) ratings. The higher the SEER, the more efficient the unit is in using electricity to cool your space. The Bryant 310AAV boasts a SEER rating of up to 16, while the 310JAV offers a slightly lower rating. This efficiency translates into cost savings on monthly energy bills while ensuring indoor comfort throughout the year.

Both models utilize advanced technologies, including two-stage heating and cooling capabilities. This means that the systems can adjust their operation based on the heating or cooling needs of a space, providing optimal temperature control while reducing energy waste. The two-stage operation also contributes to quieter operation levels, making these units suitable for residential settings where noise is a concern.

The 310AAV and 310JAV are equipped with variable-speed compressors, which further enhance their efficiency and comfort levels. The variable-speed technology allows the system to operate at different speeds, ensuring consistent temperature management and reducing the frequency of on-and-off cycling. This leads to steadier indoor temperatures and improved humidity control.

In addition to their performance features, Bryant places a strong emphasis on durability and dependability. The units are constructed with high-quality materials that are designed to withstand various environmental conditions. Features such as a weather-resistant cabinet and an efficient coil design help protect the units from wear and tear, ensuring long-lasting performance.

The implementation of environmentally friendly refrigerant options is another characteristic that demonstrates Bryant's commitment to sustainability. Both the 310AAV and 310JAV utilize R-410A refrigerant, which has a lower environmental impact compared to older refrigerants, aligning with modern standards for eco-friendly HVAC systems.

Overall, the Bryant 310AAV and 310JAV represent a blend of efficiency, advanced technology, and durability. With their attractive SEER ratings, two-stage operation, variable-speed capabilities, and commitment to sustainability, these models stand out as excellent choices for homeowners and businesses looking to enhance their heating and cooling solutions while keeping energy consumption in check. Whether for residential comfort or light commercial use, these Bryant units promise reliability and performance for years to come.