Product Overview

Features
♦ Fast, 15-second closings and openings.
♦ Tri-state operation.
♦ Models for round (MEP-5223, 45°) and square
(MEP-5233, 90°) dampers.
♦ 1/2" (12.7 mm) direct-coupled mounting for se-
curing to damper blade shaft.
♦ Position indicator and angular rotation stop for
viewing and seing minimum and maximum
damper positions.
♦ Disengagement feature to manually position
actuator and damper blade.
♦ Enclosure to protect wiring connections.
Description and Application
The MEP-5223 and MEP-5233 are replacement
damper actuators designed for residential dampers.
The 24 VAC, tri-state, 10 inch-lbs., direct-coupled
actuator provides smooth and quiet performance,
with fast, 15-second closings and openings.
These actuators are intended for replacement on
series B and C style residential dampers only—not
the A series dampers. The MEP-5223 is intended for
replacement on round dampers with a fully closed
blade angle of 45 degrees. The MEP-5233 is intended
for replacement on rectangular dampers with a fully
closed blade angle of 90 degrees.
NOTE: See also the MEP-4101 Fast-Acting,
Tri-State, Direct-Coupled, ControlSet
Actuator.
Specifications and design subject to change without notice.
MEP-5223/5233
Fast-Acting, Tri-State, Residential Zone Damper Actuators
Models
MEP-5223 45-degree (3°/sec.), replaces:
 ♦Carrier DAMPACT45DEG
 ♦Carrier 33CC500621
 ♦KMC MEP-5203-30
MEP-5233 90-degree (6°/sec.), replaces:
 ♦Carrier DAMPACT90DEG
 ♦Carrier 33CC500623
 ♦KMC MEP-5213-30
♦Johnson M9101-AGA-2N2
Accessories
HCO-1151 12-7/16 x 7 x 3-1/4" weather en-
closure
HFO-0011 3/8" shaft adapter
HMO-4520 Compression connector for ple-
num cable
HMO-4531 Replacement non-rotation
bracket
Description and Application 1
Features 1
Accessories 1
Models 1
Details 2
Specifications 2