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Honeywell W7340 User Manual

For ventilation control, Application, Features

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PRODUCT DATA

63-2569—04

W7340, W7345

Communicating Economizer Logic Modules

FOR VENTILATION CONTROL

APPLICATION

The W7340 Communicating Economizer Logic Module is a full

featured economizer that incorporates Demand Control

Ventilation (DCV) to provide free cooling and ventilation for

occupants in a space while saving energy.

The W7345 Communicating Economizer Logic Module is a

dry bulb only economizer that does not incorporate Demand

Control Ventilation.

The W7340 is used with both solid state temperature and

humidity or enthalpy sensors. The W7345 is used with solid

state temperature sensors only.

FEATURES

• Solid state control package provides accuracy,

reliability and stability.

• Housed in high-impact, glass-fiber reinforced plastic

case.

• Terminals included for connecting optional S963B1136

Remote Potentiometer for remote minimum damper

position control.

• Communicates using a modified Modbus protocol.
• Case matches the lines of the M7215 Damper Motor.
• LED indicates the status of the device input.

W7340 Only

• Operates from the Modbus input, environmental

sensors, and a DCV sensor to provide a totally

integrated control system.

• Combines minimum damper position potentiometer

with solid state temperature (10K NTC) and humidity or

enthalpy changeover control to provide economizer

free cooling function; this control can be overridden

by input via Modbus or DCV sensor.

W7345 Only

• Operates from the Modbus input and mixed/discharge

air sensor to provide a temperature control system.

• Combines the Modbus indoor and/or outdoor

temperature input with the mixed air input to provide

economizer dry bulb free cooling function.

W7340

W7345

Contents

Application.........................................................................1

Features ............................................................................1

Specifications ....................................................................2

Installation .........................................................................3

Wiring ................................................................................6

Operation...........................................................................7

Settings and Adjustment ...................................................7

Troubleshooting.................................................................11

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