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Electrical Drawings

Module Installation

The electrical drawing examples on the following

pages show the 325 in common applications. Choose

the drawing that most accurately depicts the components

in your system and use that drawing as a guide to aid in

wiring your system.

These are only concept drawings, not engineered drawings.

They are not intended to describe a complete system nor

any particular system. It is up to the system designer to

determine the necessary components for and configuration

of the particular system being designed including additional

equipment isolation relays (for loads greater than the

controls specified output ratings) and any safety devices

which in the judgement of the designer are appropriate in

order to properly size, configure and design that system

and to ensure compliance with building and safety code

requirements.

Install the Zone Expansion Module 325 in the left side of a tekmarNet

4 (tN4) wiring enclosure. The enclosure comes with

a Zone Manager pre-installed in the right side. Review the figure below to understand the installation of the 325:

To Install the 325

1. Remove the front cover of the wiring enclosure by

removing the two screws.

2. Remove the left side blank by removing the center screw

holding the blank and the Zone Manager in place. Make

sure the Zone Manager stays in place.

3. Discard the blank.

4. The 325 has connector pins protruding from the

underside of the board. The Zone Manager has two

wiring harnesses with plugs. Remove the larger gauge

wiring harness from its retaining clip in the enclosure.

The smaller one is not required.

5. Carefully connect the Zone Manager’s free plug onto

the pins on the underside of the 325.

•

• Take care to ensure a good connection and avoid

bending the pins.

6. Lower the 325 into the enclosure at an angle. Insert the

two tabs on the left side of the 325 in to the corresponding

slots in the left side of the wiring enclosure.

7. Lower the 325 toward the center of the enclosure until

the two halves fit together. Make sure that the connector

wires are placed underneath without pinching the wire.

8. Replace the center screw to hold the two controls in

place.

9. Strip all wiring to a length of 3/8 in. or 10 mm for all

terminals.