B. Continuous Ignition (Standing Pilot)

Natural gas Models 207 with 40mm (1-9/16") diam- eter burners and 208 through 210. See Figure 26 LP gas Models 203 through 210. See Figure 26.

The pilot produces three (3) flames. The center flame should be steady, medium hard blue enveloping 3/8 to a 1/2 inch of thermocouple.

C. Intermittent Ignition

Models 202 with 1" diameter burners and 202X through 210. See Figure 27.

The pilot produces three (3) flames. The center flame should be steady, medium hard blue enveloping 3/8 to a ½ inch of sensing probe.

D. Intermittent Ignition

Model 202 with a 40mm (1-9/16") diameter burner. See Figure 27a.

The pilot produces a single flame. The flame should be steady, medium hard blue enveloping 3/8 to a ½ inch of sensing probe.

7.CHECK THERMOSTAT OPERATION. Raise and lower temperature setting as required to start and stop burners.

Figure 24: Typical Pilot Flame, Robertshaw 7CL-6

Figure 25: Typical Pilot Flame, Honeywell Q350

8.CHECK HIGH LIMIT CONTROL. Jumper Thermo- stat Terminals or Thermostat connections in Limit Control. Allow burners to operate until shutdown by limit. RE-

MOVE JUMPER.

9. CHECK DAMPER OPERATION if Boiler is equipped with Vent Damper. Vent Damper must be open when boiler is running. Start boiler, refer to instructions on damper to determine if damper is in the full open position.

10. CHECK IGNITION SYSTEM SAFETY SHUT-OFF DEVICE.

A. 24 volt-loosen thermocouple at gas valve.

B. Intermittent Ignition - Remove pilot lead wires from gas valve.

If burners do not shut down determine cause of malfunction. Replace necessary items and check operation.

11. COMBUSTION CHAMBER BURN-OFF

A. The mineral wool combustion chamber panels contain a cornstarch based binder that must be burned out at installation to prevent odors during subsequent boiler operation.

Figure 26: Typical Pilot Flame, Honeywell Q327

Figure 27: Typical Pilot Flame, Honeywell Q3480

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Burnham SERIES 2 manual Move Jumper, Check Ignition System Safety SHUT-OFF Device, Combustion Chamber BURN-OFF

SERIES 2 specifications

The Burnham SERIES 2 is a highly regarded addition to the lineup of residential and commercial heating systems, known for its efficiency, reliability, and innovative design. Designed with the user in mind, the SERIES 2 boasts a range of main features that cater to the needs of modern heating solutions.

One of the standout characteristics of the Burnham SERIES 2 is its advanced cast iron construction. This material is renowned for its durability and excellent heat retention capabilities, ensuring that the system provides consistent warmth over extended periods. The cast iron heat exchanger allows for efficient heat transfer and maximizes energy output while minimizing heat loss.

Efficiency is a key focus for the Burnham SERIES 2, and it is designed to operate at high annual fuel utilization efficiency (AFUE) ratings. With its efficiency-enhancing features, including advanced combustion technology, the system helps homeowners save on energy costs while reducing their environmental footprint. The SERIES 2’s design helps ensure that a greater percentage of the fuel consumed is converted into usable heat, making it a smart choice for energy-conscious users.

Another significant feature is the versatile configuration options available with the Burnham SERIES 2. It can be installed in various settings, including basements, utility rooms, or even garages, due to its compact design. The system is compatible with multiple fuel types, allowing users to select between natural gas and propane to suit their specific preferences and availability.

The Burnham SERIES 2 also prioritizes ease of maintenance. Its user-friendly design includes access panels that simplify servicing and routine inspections. Additionally, it incorporates a range of safety features, such as an automatic shut-off system and built-in controls, to ensure safe operation.

In terms of technology, the SERIES 2 utilizes an innovative control system that optimizes heating cycles based on user demands and external conditions. This intelligent control enhances comfort and prevents excessive cycling, thereby prolonging the lifespan of the unit.

Overall, the Burnham SERIES 2 is distinguished by its robust construction, energy-efficient operation, versatility in installation, ease of maintenance, and advanced technology. For homeowners and businesses seeking a reliable heating solution, it represents a compelling choice, delivering warmth and comfort while remaining mindful of energy consumption and environmental impact.