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S8921D HOT SURFACE IGNITION MODULE
CAUTION
Hazardous Voltage.
Can Cause Personal Injury
Or Equipment Damage.
•
Disconnect power supply before installing or
servicing.
•
If a new gas control is to be installed, turn off
gas supply before starting installation. Conduct
Gas Leak Test according to gas control
manufacturer instructions after the gas control
is installed.
•
If module must be mounted where is can be
exposed to moisture or water, provide suitable
waterproof enclosure.
•
Label all wires before disconnecting. Wiring
errors can cause improper appliance operation
and dangerous conditions such as bypassing
safety features.
Perform Preinstallation Safety Inspection
A preinstallation safety check of the appliance and venting
system must be done before the replacement module is
installed. If a condition is detected that could result in
unsafe operation, shut off the appliance and advise the
owner of the unsafe condition. Correct any potentially
unsafe condition before proceeding with the installation.
Remove Old Module
Disconnect power supply before doing any work on the
unit. Disconnect and tag the wires from the old module.
Label each wire as it is removed. Remove the old module
from its mounting location.
Mount New Ignition Module
Mount the new module in the same location as the old
module. Protect the module from exposure to water,
moisture, corrosive chemicals and excessive dust and
grease. Make certain that the ambient temperature at the
module is within the range listed in the Application section.
Mount the module with the terminals down as protection
from dripping water and dust. The module can also be
mounted with terminals on either side.
Do not mount with
the terminals pointing up. Refer to Fig. 1 for mounting
recommendations. When it is necessary to drill new
mounting holes, use the S8921D as a template to mark
the mounting hole pattern. Drill new holes as required.
Fasten securely with four No. 6-32 machine or No. 8 sheet
metal screws.
Fig. 1. Module mounting recommendations.
WARNING
Explosion Hazard.
Can Cause Injury
Or Equipment Damage.
Only trained professional gas appliance
service technicians should install and check
out the S8921D.
TERMINALS FACING DOWN
TERMINALS FACING LEFT
TERMINALS FACING RIGHT
MOUNT IN ONE OF THESE POSITIONS
DO NOT MOUNT
WITH TERMINALS FACING UP
M2647