THE TOTAL SOLUTION FOR
GAS IGNITION CONTROL
Fenwal offers a complete range of ignition
control including:
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Ignition Controls
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Spark and Flame Sense Electrodes
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Spark and Flame Sense Cables
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Wiring harnesses
Designed, developed and manufactured by Fenwal, these components
integrate seamlessly providing maximum system performance.
Getting Started - Samples
To ensure proper system design and operation, Fenwal provides
sample ignition controls, high-voltage wires and electrodes for trial
and evaluation at no charge. To get you started quickly, Fenwal has
identified our most popular ignition controls, see Page 8. Whether
it is an individual control, complete start-up kit or customized control,
Fenwal is ready to provide your gas ignition solution.
Fenwal Ignition Development Center
Send your equipment to us and we’ll design, install and qualify a
control to meet your exact application requirements. Fully equipped
and staffed with trained technicians, the Fenwal Ignition Development
Center has proven extremely beneficial for many customers focused on
product quality and reducing time-to-market for their appliances.
FEATURES
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3 Enclosure Configurations
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Case and Cover - dust and foreign object protection
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Open Board with Stand-Off's - saves space and cost
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Potted - protection for washdown and extreme vibration
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2 Wiring Options – ¼” quick connects and multi-pin connector
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2 Trial for Ignition Options – 1 and 3 try
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4 Trial for Ignition Times – 4, 7,10 and 15 seconds
(customized timings available)
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2 Flame Sense Options –
single spark and sense and remote sense
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2 Reset Options – thermostat/power off and automatic
(1 hour reset)
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Diagnostic LED – 3 error codes for accurate troubleshooting
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Flame Current Test Pins – instant access to circuit
for troubleshooting
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Polarity Insensitive – reduces chance of miswiring
APPLICATIONS
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C
onstruction and Agriculture Heaters
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Crop Dryers
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Ceramic and Black Body Infrared Heaters
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Commercial Cooking Equipment
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Any 120 VAC Gas Burner Application under 400K BTU
The 35-70 is a 120 VAC direct spark ignition control
for controlling a gas valve and igniting LP or natural
gas fired equipment and gas burner applications that
provide a 120 VAC operating signal.
The microprocessor circuit design provides precise,
repeatable timing sequences for ignition times and
purge times (pre- and inter-) as well as multiple tries
for ignition, one hour automatic reset and flame sensing
during pre-purge. The on-board diagnostics with LED
output provide assistance with trouble-shooting to
ensure safe and efficient burner operation.
Agency Certifications
Recognized under the Component Program of Underwriters
Laboratories Inc., UL 372, UL 1998 Software
Design certified by CSA International, CAN C22.2 #199-M89
and ANSI Z21.20 Automatic Ignition Systems
FM Approved as both an ignition device and a flame safeguard.
Restricted to single try models without 1 hour reset.
TFI time must be 15 seconds or less.
35.70.02
Series 35-70, 120 VAC Direct Spark Ignition Control
Page 1
www.fenwalcontrols.com
1-800-FENWAL-1
SERIES 35-70
120 VAC Microprocessor Based
Direct Spark Ignition Control
®
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