The S8610U Universal Replacement Ignition Module provides easy field replacement of a wide range of intermittent pilot ignition modules manufactured by Honeywell, Robertshaw, Johnson and others. The S8610U Module provides ignition sequence, flame monitoring, and safety shutoff for intermittent pilot central furnaces, residential boilers, and other heating appliances.
The S8610U Universal Intermittent Pilot Module is a replacement ignition module for intermittent pilot systems used in central furnaces, residential boilers and other heating appliances. It supplies pilot and main valve current, flame monitoring, and safety shut‑off, and can operate on natural or LP gas.
The manual covers safety warnings, planning the installation, mounting, wiring diagrams, transformer sizing, thermostat settings, maintenance, and troubleshooting. It also lists ordering information, compatible legacy modules, and required accessories such as ignition cables and vent‑damper connectors.
| Voltage | 24 V, 60 Hz |
|---|---|
| Current Draw | 1 A pilot valve, 2 A main valve |
| Valve Contact Rating | 0.2 A |
| Spark Generator Output | 13 kV peak at 25 pF load |
| Ambient Temperature Rating (≤1.0 A main valve) | -40 °F to +175 °F |
| Ambient Temperature Rating (1.0‑2.0 A main valve) | -40 °F to +165 °F |
| Flame Failure Response Time | 0.8 s at 1.0 mA flame current |
| Relative Humidity Rating | 5 %–90 % RH at 95 °F |
| Flame Current Minimum | 1 µA |
| Trial for Ignition Duration | 90 s maximum |
| Continuous Retry Delay | minimum 5 min (nominal 6 min) |
The module operates on 24 V AC at 60 Hz.
The module imposes a minimum five‑minute (six‑minute nominal) delay before the next ignition trial.
The spark generator produces a peak voltage of 13 kV into a 25 pF load.
It can operate from –40 °F to +175 °F with a main valve rating of 1.0 A or less, and from –40 °F to +165 °F with a main valve rating of 1.0‑2.0 A.