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S89E,F DIRECT SPARK IGNITION CONTROL MODULE
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
this unit may not match the listed specifications
exactly. Also, this product is tested and calibrated
under closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.
Models:
S89 Direct Spark Ignition Control Modules. Provide electronic
control of direct spark ignition system on gas-fired
atmospheric and power burners.
S89E: 10-second maximum delay for safe start check.
S89F: 38-second maximum delay for safe start check plus
valve on delay.
Complete DSI system also includes:
120 Vac Spark Generator with 1.5A or less current draw.
Q347 Spark Igniter or equivalent.
Q354 Flame Sensor or equivalent.
VR845, VR854, VR8450, or VR8305 Combination Gas
Controls or any dual valve rated 2A or less and
designed for DSI applications.
S89 Current
(in Amperes)
0.2
0.2
0.2
0.2
Safety Lockout Timing: 4 or 11 seconds nominal. Ignition is
on during approximately the first 80 percent of lockout
timing and off during the last 20 percent for flame proving.
Specify lockout timing when ordering.
Flame Failure Response Time: 2 seconds maximum with
2.5 µA flame current.
Flame Current Signal: 0.8 µA minimum.
Ambient Temperature Range: -40°F to +175°F (-40°C to
+80°C).
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
68-0066—4
Table 1. Transformer Rating.
Gas Control Current
(In Amperes)
0 to 0.6
0.6 to 1.0
1.0 to 1.4
1.4 to 2.0
24 to 30 Vac Thermostat.
HIgh Temperature Limit Controller.
24V Transformer. See Table 1 for VA rating.
Electrical Ratings:
Power supply: Requires two power supply connections—24
and 120 Vac, 50/60 Hz.
Current at 24V input: 2.2A maximum.
Valve Contacts: 2.0A maximum run, 20A maximum inrush at
24 Vac.
Spark Generator Relay Contacts: 1.5A at 120 Vac, 50/60 Hz.
Transformer Rating: See Table 1.
Thermostat Heat Anticipator Setting: 0.2A plus gas control
current.
Delay Timing:
S89E: Safe Start Check—10 seconds maximum.
S89F: Safe Start Check plus Valve On Delay—38 seconds
maximum.
Transformer VA
Rating Required
20
30
40
50
Wiring Connections:
24 Vac—3/16 in. quick-connects.
120 Vac—12 in. (305 mm) color-coded leadwires.
Sensing Lead: Up to 36 in. (0.9m). Insulation must be rated
for 100 megohm resistance between wire and ground.
Mounting: Mounts in any position.
Dimensions: See Fig. 1.
2
Transformer
Model No.
AT20A or AT120A
AT72D or AT140A
AT72D or AT140A
AT87A or AT150A
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