Product Description
The Robertshaw 780U-DS20 Universal Direct Spark Ignition Module, part of the 780U Universal Series, is a versatile 24V ignition module designed for gas furnaces, boilers, water heaters, and commercial cooking equipment. It offers customizable settings for trials, pre-purge, trial for ignition, inter-purge, and restart time, ensuring optimal performance across various applications. This module is compatible with both natural and LP gas, and supports both single rod (local sense) and two rod (remote sense) flame sensing. It can replace over 150 models, including those from Honeywell, White-Rodgers, and Fenwal. The 780U-DS20 also includes a vent damper connection and LED indicators to display flame presence, strength, and system status or errors.
Applications include Gas furnaces, boilers, water heaters and commercial cooking.
• Configurable 24V ignition module
• Selectable number of trials, pre-purge, trial for ignition, inter-purge and restart time
• Replaces over 150 models including Honeywell, White-Rodgers, Johnson Controls and others
• Flame sensing supports both single rod (local sense) and two rod (remote sense)
• Compatible with both Natural and LP gas
• Vent damper connection allows for connection to a vent damper
• LED indicators provide troubleshooting and notifications for flame presence/strength and displays system status and errors
| Series Application | Universal Direct Spark Ignition Module |
| Input Power | 24VAC ± 4VAC 50-60 Hz |
| Input Current | Max 0.25 A + Valve at 2A Max |
| High Voltage Output | 15 KV with 50 pf load |
| Spark Gap | 0.150 in ± 0.050 in (3.8 mm ± 1.2 mm) |
| Flame Sensor Current | 0.5 Microamperes (uA) minimum |
| Flame Failure Re-Ignition Time | Maximum 1 second |
| Auto Restart | 60 minutes |
| Vent Damper | Optional, use Molex 03-06-2061 |
| Ambient Temperature | -40°F to + 176°F (-40°C to +80°C) |
| Humidity Range | Up to 95% relative humidity non-condensing |
| UPC | 662013256456 |
Equivalent Part Numbers: 05-162425-103, 05-162425-200, 05-162426-000, 05-162426-001, 05-162426-002, 05-162426-003, 05-162426-005, 05-162426-006, 05-162426-053, 05-162426-101, 05-162426-105, 05-162426-200, 05-162426-201, 05-162426-203, 05-169001-000, 05-169001-001, 05-169001-002, 05-169001-003, 05-169002-003, 05-169003-103, 05-169005-123, 05-169006-201, 05-169007-201, 05-169008-225, 05-169009-005, 05-169009-023, 05-169011-201, 05-169011-205, 05-169012-200, 05-169018-003, 05-272426-005, 05-272426-055, 05-272426-253, 05-279003-223, 05-279004-223, 05-296423-150, 05-296423-151, 05-296425-153, 05-296425-250, 05-296426-150, 05-296426-151, 05-296426-153, 05-296426-155, 05-296426-250, 05-296426-251, 05-296426-253, 05-296426-255, 05-296426-750, 05-296426-751, 05-296426-753, 05-296426-755, 05-296426-757, 05-296463-253, 05-296463-255, 05-296463-263, 05-296466-150, 05-296466-151, 05-296466-153, 05-296466-155, 05-296466-250, 05-296466-251, 05-296466-253, 05-296466-255, 05-296626-251, 05-296663-261, 05-296666-151, 05-296666-153, 05-296666-155, 05-299012-553, 35-605601-001, 35-605606-111, 35-605606-227, 35-605635-113, 35605601001, 35605606111, 35605606227, 35605635113, 5162425103, 5162425200, 5162426000, 5162426001, 5162426002, 5162426003, 5162426005, 5162426006, 5162426053, 5162426101, 5162426105, 5162426200, 5162426201, 5162426203, 5169001000, 5169001001, 5169001002, 5169001003, 5169002003, 5169003103, 5169005123, 5169006201, 5169007201, 5169008225, 5169009005, 5169009023, 5169011201, 5169011205, 5169012200, 5169018003, 517010030011001, 517010030021001, 521010000004001, 521010000006000, 521010000011001, 5272426005, 5272426055, 5272426253, 5279003223, 5279004223, 5296423150, 5296423151, 5296425153, 5296425250, 5296426150, 5296426151, 5296426153, 5296426155, 5296426250, 5296426251, 5296426253, 5296426255, 5296426750, 5296426751, 5296426753, 5296426755, 5296426757, 5296463253, 5296463255, 5296463263, 5296466150, 5296466151, 5296466153, 5296466155, 5296466250, 5296466251, 5296466253, 5296466255, 5296626251, 5296663261, 5296666151, 5296666153, 5296666155, 5299012553, 545410000021001, 545410030004001, 545410030006001, 549010000021001, 549410000004001, 549410000006001, 549410000011001, 780U, 780UDS20, S87B1008, S87B1016, S87B1024, S87B1065, S87C1006, S87C1014, S87C1030, S87D1012, S87D1020, S87D1038, S87J1026, S87J1034, S87K10016, S87K1008
