this Apollo 78-RV series valve effectively handles thermal expansion by venting excess pressure

NEMA 4 Enclosure provides protection against water

2 gas) for optimized flow

providing a professional interface for monitoring the internal 24V circuit and safety limits

this specific element is engineered for R22 and R407C

Lennox 17M50 Humidity Sensor Refrigerant this Apollo 78-RV series valveThe Lennox 17M50 Humidity Sensor is a high precision relative humidity (RH) sensor kit designed for seamless integration with Lennox L Connection network building automation systems. Engineering specifically for wall mount installation, this 17M50 unit (catalog number 17M50, identical to 17M5001) serves as a critical feedback loop for commercial rooftop equipment, including LG, LC, LH, SG, and SC models. It facilitates advanced Humiditrol reheat