Indianapolis, IN 46237
www.iohvaccontrols.com
For Technical Support Call Toll Free: 866-225-5032
SPECIAL ADDENDUM
USING ESP ZONING PANELS WITH GAS FURNACES
HAVING DIRECT SPARK IGNITION (DSI)
DSI functions by creating a rapid series of high-voltage electric
sparks, which means DSI controls generate electromagnetic
interference (EMI) during their trial for ignition. This electronic noise
can sometimes interfere with ESP zoning panels as well as other
nearby electronic components and even with the ignition control itself.
When using an ESP zoning panel with a gas furnace having DSI, we
recommend that the panel be mounted at least ten feet away from the
furnace to reduce any effects of EMI that can cause sporadic cycling
of the relay outputs.
