Reznor Direct Spark Ignition, Integrated Control Module for PDH/SDH/SHH/RDH/ RHH with all gas controls except AG58 or D12GThis control can be obtained from Parts4heating.com and will fit the following model names:PDH - Power-vented, gas-fired heat, indoor unit, SDH - Separated combustion, gas-fired heat, indoor unit, SHH - RDH - Power-vented, gas-fired heat, outdoor unit, RHH - Supper high efficiency gas heating air handler.
