SERIES 35-62
24 VAC Microprocessor Based Dual Point
Direct Spark Ignition Control
FEATURES
24 VAC microprocessor based DSI control
System diagnostic LED
Multiple tries
Custom prepurge and interpurge timings
Remote flame sensing
Full time flame sensing
Flame sense test pins
Software conforms to UL 1998 requirements
DESCRIPTION
The Series 35-62 is a 24 VAC Microprocessor Based Dual Point
Direct Spark Ignition Control continually and safely monitors,
analyzes and controls the proper operation of two gas burners.
Value added features such as LED diagnostics, automatic one hour
reset, and flame current test pins highlight the controls benefits.
®
35.62.03
Input Power
Control:20-28 VAC 50/60 Hz
(Class 2 Transformer)
Input Current Drain
300 mA @ 24 VAC and
gas valve relay energized
(control only)
Gas Valve Rating
1.5A @ 24 VAC
(Inrush 3,0A maximum)
Operating Temperature
-40°F to +160°F
-40°C to +71°C
Flame Sensitivity
>1.0uA minimum
Flame Failure
0.8 seconds
Response Time
Types of Gases
Natural, LP, or manufactured
Spark Rate
Line frequency
(50/60 sparks/sec)
Enclosure
Gray (Noryl N-190) fire
retardant plastic integral
standoffs optional
Moisture Resistance
Conformal coated to operate
to 95% R.H. Care must be
taken to protect module from
direct exposure to water
Tries for Ignition
One or three try versions
available
Trial for Ignition Periods
4.0,7.0,10.0,15.0 or 21.0
seconds available
Prepurge & Interpurge
None,15, or 30 seconds
depending on model.
APPLICATIONS
Gas furnaces
Boilers
Water heaters
Commercial cooking
Other similar appliances
SPECIFICATIONS
Series 35-62, 24 VAC Dual Point DSI Control
Page 1
www.fenwalcontrols.com
1-800-FENWAL-1
Agency Certifications
Design certified to ANSI Z21.20-1993 and
CAN/CSA C22.2 No. 199-M89
