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IMPORTANT: THE GAP SETTING ON THE IGNITOR/FLAME-PROBE ASSEMBLY IS
CRITICAL.
d. The Direct Spark Ignition (DSI) 24 VAC gas valve(s)
used are of the redundant type, which means the gas
valve is actually two (2) gas valves in one (1); one (1)
in series with the other. This is a safety feature, which
provides protection against gas flow in the event of a
failure of one (1) of the valves to seat properly. Other
features are that the gas valves have a manual shutoff,
a pressure tap outlet, and are designed for easy
conversion to regulated liquid propane (L.P.) gas.
IMPORTANT: The DSI gas valves are not field repairable. There are no parts available for field
repair. Replace valve only with exact model and/or type number as noted on gas
valve.
2. System (Basic) Electric Ratings/Specifications
a. Input Voltage: 18 VAC to 30 VAC (must be grounded)
b. Line Frequency: 50 Hz or 60 Hz
c. Maximum Input Current: 0.100 amps + valve load @ 25 VAC
d. Valve Load: 1-amp maximum @ 25 VAC
e. Spark Voltage: 14,000 volts
3. System (Basic) Timing Specifications
a. Trial for Ignition: 8-seconds
b. Flame Failure Response Time: 0.5-seconds maximum
c. Flame Failure Reignition Time: 0.5-seconds maximum
d. Prepurge Time: 1.5-seconds +/- 0.5-seconds
e. Retry Time: none
f. Lockout Time: 10-seconds maximum