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RTS – 24V (2-wire) Spring Return Take-Off Zone Damper

SPAD Gen. 3 – Static Pressure Adjustable Damper

SPRD – Static Pressure Regulating Damper

SPS - Static Pressure Switch

T24 – 24 Volt Transformer

VKxx – Make-Up Air Ventilation Damper System

ZDB – 24V (2-wire) Spring Return Bottom Mount Zone Damper

ZDBM – 24V (3-wire) Modulating Bottom Mount Damper (By-pass)

ZDBP – Plug-In-Play Bottom Mount Zone Damper

ZDS – 24V (2-wire) Spring Return Side Mount Zone Damper

ZDSM – 24V (3-wire) Modulating Side Mount Damper (By-pass)

ZDSP – Plug-In-Play Side Mount Zone Damper

ZPS – Zone Plenum Sensor