Tech Sheet

SERIES 35-60 & 35-61
24 VAC Microprocessor Based Direct Spark Ignition
Control with or without Combustion Blower Relay
FEATURES
 24 VAC microprocessor based DSI control
 Pressure switch monitoring
 System diagnostic LED
 Alarm output (normally closed contact)
 Automatic reset 1 hour after lockout*
 Custom prepurge and interpurge timings**
 Multiple tries for ignition
 Remote or local flame sensing
 Flame sense test pins
DESCRIPTION
The Series 35-60 and 35-61 are 24 VAC Microprocessor Based
Direct Spark Ignition Controls designed for use in all types of
heating applications. The control utilizes a microprocessor to
continually and safely monitor, analyze and control the proper
operation of the gas burner. Value added features such as
combustion blower control, LED diagnostics, automatic one hour
reset, and flame current test pins highlight the controls benefits.
®
35-60,-61
APPLICATIONS
 Gas Furnaces
 Boilers
 Water Heaters
 Commercial Cooking
 Other Similar Appliances
UL Component Recognized System.
Design certified to UL 372, file MH8817.
Software conforms to UL 1998 requirements.
Design Certified to ANSI Z21.20,
CAN/CSA C22.2 No. 199-M89
CE Approved to EN 298:2003
Certified to Standards AG206 and AG210
35-60 and 35-61, 24 VAC DSI Control with or without Blower Relay Page 1
www.fenwalcontrols.com 1-800-FENWAL-1
* Automatic reset after 1 hour is not
allowed for CE approved models
** Prepurge time cannot exceed
interpurge time on CE models
Input Power
Voltage
Current
Output (Contact Ratings)
Gas Valve
Combustion Blower
(Model 35-61 only)
Operating Temperature
Flame Sensitivity
Flame Failure Response Time
Types of Gas
Spark Rate
Size (LxWXH)
Enclosure
Moisture Resistance
Weight
Tries for ignition
Trial for ignition Periods
Prepurge & Interpurge
Edge Connect Version
Control: 18 to 30 VAC 50/60 Hz
(Class 2 Transformer)
Line: 120 or 240 VAC
(L1 & IND contacts only)
300 mA max @ 24 VAC with blower and gas
valve relay energized (Control only)
2.0A max @ 24 VAC
3.0 FLA @ 120 VAC (6.0 LRA)
1.5 FLA @ 240 VAC (3.0 LRA)
1/4 H.P. Motor
-40ºF to +176ºF (-40ºC to +80ºC)
0.7μA minimum
0.8 seconds maximum
Natural, LP, or manufactured
Line frequency (50/60 sparks/ sec.)
5.684” x 3.934” x 1.875” (with cover)
5.281” x 3.718” x 2.080” (edge connect)
Gray (Noryl N-190) fire retardant plastic
Conformal coated to operate non-condensing
to 95% R.H. Care must be taken to protect
module from direct exposure to water
8 oz including cover
One or three try versions available
4.0, 7.0, 10.0, or 15.0 seconds standard
Contact factory for other settings
None, 15, or 30 seconds depending on
model. Without prepurge there is a one
second delay before the first try for ignition
Optional Edge connect model for
replacement product
SPECIFICATIONS
Agency Certifications