This specific unit is typically used in mid-efficiency (80% AFUE) induction-draft furnaces

Visual Feedback: Provides an immediate visual of relay activation via the integrated red LED status indicator

delivering the necessary spark energy to ensure instantaneous ignition under varying manifold pressures

resisting the binding common in older ventilation systems

Internal Pilot Actuation: Utilizes system pressure to assist in opening

MAMAC Systems HU-921-1-VDC-8 Humidity Transducer 323080-701 This specific unit is typicallyThe MAMAC HU 921 1 VDC 8 Humidity Transducer is a professional grade environmental sensor designed for high precision relative humidity monitoring in demanding commercial and industrial building automation systems. As a versatile HVAC humidity sensor, this unit provides a stable VDC output signal to interface seamlessly with most DDC controllers. Engineered with a bulk polymer capacitive sensing element, it maintains excellent linearity and long term