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W7340, W7345 COMMUNICATING ECONOMIZER LOGIC MODULES
3 63-2569—04
Table 1. Logic Module Inputs and Outputs.
a
2-wire (18, 20, 22 AWG) connection.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
IMPORTANT
All wiring must agree with applicable codes,
ordinances and regulations.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
Location and Mounting
Communicating Economizer Logic Modules
When planning the installation, allow enough clearance for
maintenance and service. Mount the device in a location
protected from rain, snow, and direct sunlight. The logic
module mounts on the side of an M7215 Damper Motor or
directly on a sheet metal duct or panel.
NOTE: Refer to Figures 4 and 5 for representative locations
of connected system devices.
CAUTION
Equipment Damage Hazard.
Mounting screws longer than 5/8 in. can damage
internal motor components.
When mounting the module to an M7215 use only the
included #6 5/8 in. thread-forming screw.
MOUNTING DIRECTLY TO THE MOTOR
1. Mount the motor.
2. Secure the W7340 or W7345 to the motor using the
supplied mounting screw (See Fig. 2).
MOUNTING SEPARATE FROM THE MOTOR
Secure the device to the sheet metal using appropriate
fasteners (not supplied)(See Fig. 3).
Fig. 2. Mounting Economizer Logic Module on Damper
Motor.
W7340 W7345
Inputs
Enthalpy
4-20 mA
a
—
Modbus yes yes
Return Sensor optional —
Mixed/Discharge Air
10K ohm
a
10K ohm
a
Outdoor Sensor
10K ohm
a
—
Indoor DCV Sensor 0-10 Vdc control signal —
Remote Minimum
Position Potentiometer
optional optional
Motor Feedback 2-10 Vdc —
Outputs
Modbus yes yes
Exhaust One set of 24 Vac
contacts (spst)
—
Motor Output Signal 2-10 Vdc —
M17550B
ECONOMIZER
LOGIC MODULE
M7215
DAMPER
MOTOR
5/8 INCH SCREW INCLUDED
WITH LOGIC MODULE.