For service technicians addressing flame rollout or secondary heat exchanger failure

the Series 26 controller is factory-calibrated for standard conductivity levels but can be field-tuned if dealing with high-purity water or specific chemical additives that affect electrical resistance

as a standard thermal expansion valve

Durable Polymeric Housing: Resistant to the corrosive effects of flue gas condensate and high-heat environments

Heil Quaker ICP 1185842 Control 320074-702 For service technicians addressing flameThe Heil Quaker ICP 1185842 Control is a genuine OEM ECM X13 Motor Control Module designed specifically for 1 2 HP constant torque blower motors. As a veteran technician, you know that X13 "end caps" are the primary failure point in high efficiency systems due to voltage spikes or poor power quality. This replacement motor control module allows for a targeted repair without pulling the entire motor assembly, preserving the factory programmed torque