Overview

Provide electronic control of direct spark ignition systems, with external spark transformers, used on gas-fired furnaces, boilers, conversion burners and other heating appliances.

Features

• Controls ignition sequence and gas control operation in direct spark ignition systems.
• Control separate 120 Vac spark generator that provides high voltage potential for main burner ignition.
• Lockout after one trial for ignition if main burner fails to ignite.
• Reset from thermostat after lockout. Use separate electrodes for spark ignition and flame sensing.
• Use any 24 Vac combination gas control designed for direct spark applications and rated at 2.0A or less.

Product Specifications

Dimensions (in.)

5 1/4 in. high x 4 1/16 in. wide x 1 15/16 in. long

Dimensions (mm)

133 mm high x 103 mm wide x 49 mm deep

Electrical Ratings

24 Vac

Frequency

60 Hz

Approvals, Canadian Standards Association

Design Certified

Flame Failure Response Time (sec)

2.0 sec. @ 2.5 microamp

Ambient Temperature Range (F)

-40 F to +175 F

Ambient Temperature Range (C)

-40 C to +79 C

Ignition System Type

Direct Spark Ignition

Ignition Sequence

Single trial for main burner ignition (then shut down and lockout)

Typical Gas Control

VR8205, VR8305

Type of Gas

Natural or LP

Flame Sense

Two Rod

Ignition Source

External (120 VAC powered) High Voltage Spark Generator

Ignition Trials To Lockout

1

Lockout Timing

4 sec.

Ignition Trial Time (sec)

4 sec.

Maximum Valve Load @ 24 Vac (Amps)

2A

Flame Failure Re-ignition Time (sec)

0.8 sec. maximum