Specifications

Control Voltage: 24V (18-30 Vac) 50/60 Hz.

Current Draw: 0.2 A plus valve load @ 24Vac.

Trial for Ignition, Prepurge, Postpurge, Interpurge and ignition timings: Dependent on model ordered.

Ignition Sequence: Refer to the Normal Operating Sequence for Standard Models flowchart.

Flame Failure Response Time: 1 seconds maximum.

LED: The green status LED provides system status and error codes when in run mode, as well as when the system is attempting ignition.

Gas Control: Direct Ignition valves up to 2 A.

Operating Temperature:

  • Minimum ambient temperature rating is -40°F (-40°C).

  • Maximum ambient rating is 175°F (79°C).

Relative humidity: 0% to 95% (non-condensing).

Approvals: UL 60730-1, UL 60730-2-5.

Hot Surface Igniter or Igniter-sensor: Norton Model 201 or 271, or equivalent.

NOTE: If an igniter other than Norton Model 201 or 271 is used, the igniter must meet the following minimum specifications, required over the life of the igniter:

  • Igniter must reach 1832 °F (1000 °C) within 34 seconds with 102 Vac applied.

  • Igniter must maintain at least 500M ohms insulation resistance between the igniter lead wires and the igniter mounting bracket.

  • Igniter must not develop an insulating layer on its surface (over time) which would prevent flame sensing.

  • Igniter surface area immersed in flame must not exceed 1/4 of the grounded area immersed in flame. This would prevent flame sensing.

  • Igniter current draw at 132 Vac must not exceed 5 A.