This specific disc is required for Reznor FT and SFT models 250 and 300 when operating on liquid propane to properly restrict air intake

25 to 4 inches

Key Benefits System Stability: Maintains optimal superheat levels to maximize heat transfer across the evaporator coil

Always inspect the venting and orifice for debris before replacing the switch

Key Benefits: Direct OEM Compatibility: Specifically designed to replace factory components in Carrier

Daikin-McQuay 300046465 Controller 340155-7026 This specific disc is requiredThe Daikin McQuay 300046465 Controller, specifically the MT3021 VLV EXP CONTROLLER, is a high precision sub module engineered for managing Electronic Expansion Valves (EEVs) in commercial refrigeration and large scale cooling plants. Built for rugged field reliability, this EEV controller handles demanding high pressure environments up to 600 psi while maintaining a minimum operational threshold of 5 psi. It is specifically calibrated for R 410A