Aldrich A3C Series Datos del producto - Página 4

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2.3 BURNER

A. Basis of Design Product: Subject to compliance with requirements, provide products as

listed:

1. Power Flame – Model:

B. Code Compliance: UL, CSD-1

C. Burner must be factory mounted and wired including burner control panel.

D. Light Package: Power On, Load Demand, Main Fuel, FSG Alarm

E. Quick Connect Wiring of Burner and Gas Train: Burner to include factory wired burner quick

connect wiring. This provides quick and easy removal of the burner and gas train for

applications when the burner may need to be shipped loose or removed for rigging

purposes. The quick connect system greatly reduces the time required for the installing

contractor to remount and make wiring connections.

F. Burner to include a Siemens LMV3 linkageless modulation system consisting of independent

servo motors to manage the air-fuel ratio. Burner also to include a Siemens RWF55 PID

controller and temperature sensor.

The use of linkage type or CAM type modulation is not acceptable.

G. Blower: Forward-curved centrifugal fan integral to burner, directly driven by motor.

H. Gas Train: Control devices shall comply with requirements in ASME CSD-1 and UL. Gas train

to include pilot shut-off valve, regulator, pilot solenoid valve, intermittent electric spark

pilot ignition with 100 percent main valve and pilot safety shutoff with electronic ultra violet

supervision of burner flame (flame rod not acceptable).

Main Gas Train: Factory piped and wired (may be removed for shipment as a complete

assembly for protection), main gas regulator, main gas safety shut off valve, secondary gas

safety shut off valve, isolation valve(s) with test cock(s), high and low gas pressure switches.

2.4 SOURCE QUALITY CONTROL

A. Test and inspect factory-assembled boilers, before shipping according to ASME Boiler and

Pressure Vessel Code.

PART 3 – EXECUTION

3.1 EXAMINATION

A. Before boiler installation, examine roughing-in for concrete equipment bases, anchor bolt

sizes and locations, and piping and electrical connections to verify actual locations, sizes,

and other conditions affecting boiler performance, maintenance, and operations.

1. Boiler locations on drawings are approximate. Determine exact locations before

roughing-in for piping and electrical connections and consult mechanical engineering

Project Manager for approval prior to proceeding.

with a minimum turndown of 10:1