Specifications
Ignition Pilot Modules
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S87 Direct Spark Ignition Modules
Provide electronic control of direct spark ignition systems used on
gas fire furnaces, boilers, and other heating appliances.
• Control ignition sequence and gas control operation.
• Generate 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 modules (except S87C) with any combination gas control
designed for direct spark applications and rated 2.0A or less.
Application: Provide electronic control of direct spark ignition systems
used on gas fired furnaces, boilers, and other heating appliances.
Dimensions, Approximate: 5 1/4 in. high x 4 1/16 in. wide x 1 15/16 in.
long (133 mm high x 103 mm wide x 49 mm deep)
Type of Gas: Natural or LP
Electrical Ratings: 24 Vac
Frequency: 60 Hz
Flame Failure Response Time (sec): 0.8 sec. @ 5.0 microamp
Flame Failure Re-ignition Time (sec): 0.8 sec. maximum
Ignition Sequence: Single trial for main burner ignition (then shut down
and lockout)
Ignition Source: Internal high voltage spark generator
Ignition System Type: Direct Spark Ignition
Maximum Valve Load @ 24 Vac (Amps): 2A
Typical Gas Control: VR8205, VR8305
Typical Ignition Hardware: Q347A
Maximum Ambient Temperature: -40 F to +175 F (-40 C to +79 C)
Product Number Flame Sense Ignition Trial Time (sec) Ignition Trials To Lockout PrePurge Includes
S87B1008 Single Rod 6 sec. 1 None Alarm terminal
S87B1016 Single Rod 11 sec. 1 None Alarm terminal
S87B1024 Single Rod 21 sec. 1 None Alarm terminal
S87B1065 Single Rod 4 sec. 1 None Alarm terminal
S87C1006 Two Rod 6 sec. 1 None —
S87C1030 Two Rod 21 sec. 1 None —
S87D1004 Two Rod 6 sec. 1 None Alarm terminal
S87D1012 Two Rod 11 sec. 1 None Alarm terminal
S87D1020 Two Rod 4 sec. 1 None Alarm terminal
S87D1038 Two Rod 21 sec. 1 None Alarm terminal
S87J1026 Single Rod 11 sec. 1 30 sec. minimum —
S87J1034 Single Rod 21 sec. 1 30 sec. minimum —
S87K1008 Two Rod 4 sec. 1 30 sec. minimum —