The Belimo ZDB-LF Angle of Rotation Limiter is a field-installable accessory designed specifically for the LF series spring-return actuators

While the 1740 RPM and 2 HP ratings may match

dynamically adjusting flow to prevent liquid slugging and compressor floodback

Built with a 16-pin connector interface

you know that maintaining the correct thermal stack or refrigerant line temperature is non-negotiable for system longevity

Carrier 336901-402 Knob 326070-701 The Belimo ZDB-LF Angle ofThe Carrier 336901 402 Knob is a critical interface component designed for precise HVAC control adjustment within residential and commercial systems. Engineered specifically for compatibility with Carrier furnace and AC units, this OEM replacement knob provides contractors and technicians with a reliable solution for restoring user level settings on temperature, fan speed, and system parameters. Constructed from high durability, impact resistant