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Y8610U INTERMITTENT PILOT RETROFIT KIT
68-0291—03 6
Fig. 5. 392431 Igniter-sensor mounting dimensions in
inches. (mm).
PLANNING THE INSTALLATION
WARNING
Fire or Explosion Hazard.
Can cause severe injury, death or property damage.
1. Plan the installation as outlined below.
2. Plan for frequent maintenance as described in the
Maintenance section.
Intermittent pilot systems are used on a wide variety of central
heating equipment and on heating appliances such as
commercial cookers, agricultural equipment, industrial heating
equipment and pool heaters. Some of these applications may
make heavy demands on the controls, either because of
frequent cycling, or because of moisture, corrosive chemicals,
dust or excessive heat in the environment. In these situations,
special steps may be required to prevent nuisance shutdowns
and premature control module failure. These applications
require special Honeywell review; contact your Honeywell
Sales Representative for assistance.
Review the following conditions that can apply to your specific
installation and take the precautionary steps suggested.
Frequent Cycling
These controls are designed for use on appliances that
typically cycle three to four times an hour only during the
heating season. In year-round applications with greater cycling
rates, the control module can wear out more quickly; perform a
monthly checkout.
Water or Steam Cleaning
If the control module gets wet, replace it. If the appliance is
likely to be cleaned with water or steam, protect (cover) the
controls and wiring from water or steam flow. Mount the
controls high enough above the bottom of the cabinet so they
do not get wet during normal cleaning procedures. Use a
NEMA 4 enclosure for the ignition control module.
High Humidity or Dripping Water
Dripping water can cause the control module and the gas
control to fail. Never install an appliance where water can drip
on the controls.
In addition, high ambient humidity can cause the control
module and the gas control to corrode and fail.
If the appliance is in a humid atmosphere, make sure air
circulation around the controls is adequate to prevent
condensation. Also, regularly check out the system. A NEMA 4
enclosure is recommended for the ignition control module.
Corrosive Chemicals
Corrosive chemicals can attack the ignition control module and
gas control, eventually causing a failure. If chemicals are used
for routine cleaning, make sure they do not reach the controls.
Where chemicals are suspended in air, as in some industrial or
agricultural applications, use a NEMA 4 enclosure for the
ignition control module.
Dust or Grease Accumulation
Heavy accumulations of dust or grease can cause controls to
malfunction. Where dust or grease can be a problem, provide
covers for the ignition control module and the gas control to
limit contamination. A NEMA 4 enclosure is recommended for
the ignition control module.
Heat
Excessively high temperatures can damage controls. Make
sure the maximum ambient temperature at the control module
does not exceed the rating of the control module. If the
appliance operates at very high temperatures, use insulation,
shielding, and air circulation, as necessary, to protect the
controls. Proper insulation or shielding should be provided by
the appliance manufacturer; verify proper air circulation is
maintained when the appliance is installed.
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