Honeywell TrueZONE ARD Series

INSTALLATION INSTRUCTIONS
33-00040-01
TrueZONE ARD, EARD, and ZD
Series Dampers
APPLICATION
ARD Series Damper
The ARD is a round damper with a 24 Vac, spring-Open return
damper motor used to control circulating air in heating,
cooling, and ventilating systems.
EARD Series Damper
The EARD is a round damper with a 24 Vac powered-open/
spring-closed motor. It is used for fresh air intake for
Ventilation or for combustion makeup air.
ZD Series Damper
The ZD is a power close and spring open damper. It has a 24-
volt motor used to control circulating air in HVAC systems and
used when a normally-open damper is required. The ZD is
typically used with the TrueZONE and other electronic zoning
systems.
FEATURES
• Taping Flange and non-interfering set screw
• High Temperature outer plastic for hot environments
• Redesigned all Metal Drive Train Gears
• Front facing display with LED Indication light for Open
and Close.
• Adjustable damper position range stops
• Quiet operation.
ARD Features
• Adjustable close position range stops
• Shipped as power closed/spring return open damper.
• Available in 5 to 10” inch, 12, 14, 16, 18, and 20 inch
diameter sizes.
• Male (crimped) and female (uncrimped) ends to connect to
any rigid or flexible round duct.
• Rated to operate up to 1 in. wc
• Blade closes off tightly against gasket for minimal leakage.
• Fail-safe, normally open operation
• Simple, easy-to-wire, two-wire installation with a third wire
option M4 for LED open only light
EARD Features
• Adjustable open position range stops
• Shipped as power open/spring return closed damper.
• Blade closes off tightly against gasket for minimal leakage.
• Galvanized steel
• Rated to operate up to 1 in. wc
• Simple, easy-to-wire, two-wire installation
• Male (crimped) and female (uncrimped) ends to connect to
any rigid or flexible round duct.
ZD Features
• Adjustable closed position range stops
• Rated to operate up to 1 in. wc
• Solid construction using extruded aluminum frame and
blades
• Parallel blade design for low leakage performance
• Simple, easy-to-wire, two-wire installation with a third wire
option M4 for LED open light
• Fail-safe, normally open operation
• Ordering Instructions: Order ZD (dimension 1) x
(dimension 2). (Motor is always mounted on dimension 2
side.) For example, ZD10x8TZ is a 10 in. x 8 in. damper
with the motor on the 8 in. side; but a ZD8x10TZ is a 8 in. x
10 in. damper that has the motor on the 10 in. side.
• Damper can be installed in any orientation (mounting side
can be on either the bottom or the side of the duct).

Honeywell TrueZONE ARD Series Specifications

General

Brand	Honeywell
Model	TrueZONE ARD Series
Category	Control Unit
Language	English

Summary

Product Application

ARD Series Damper

The ARD is a round damper with a 24 Vac, spring-Open return damper motor used to control circulating air.

EARD Series Damper

The EARD is a round damper with a 24 Vac powered-open/spring-closed motor for fresh air intake.

ZD Series Damper

The ZD is a power close and spring open damper with a 24-volt motor for HVAC systems.

Product Specifications

General Specifications

Covers electrical ratings, timing, temperature, leakage, and pressure ratings for dampers.

Motor Specifications

Details motor rotation, torque, mounting means, and dimensions.

Damper Construction

Describes frame and blade construction for ARD, EARD, and ZD dampers.

Installation Instructions

Installing ARD and EARD Dampers

Steps for installing round ARD/EARD dampers into ducts.

ZD Damper Planning and Sizing

Guidance on selecting location, size, and considering humidifiers for ZD dampers.

Installing ZD Dampers

Steps for cutting openings and securing ZD dampers into air ducts.

Wiring and Checkout

General Wiring Precautions

Electrical shock hazard warning and basic damper motor operation.

ARD Wiring Example

Diagram showing ARD damper wiring to a control panel.

Motor Replacement Procedure

Step-by-step guide for changing the motor on ARD, EARD, and ZD dampers.

ARD Checkout Procedure

Steps to verify proper operation of the ARD damper motor.

Advanced Wiring and ZD Operations

EARD Wiring Examples

Wiring diagrams for EARD to W8150 and VisionPRO IAQ thermostats.

ZD Damper Wiring

Precautions and basic wiring details for ZD dampers.

ZD Checkout Procedure

Steps to verify proper operation of the ZD damper motor.