Wiring Guide

ManualsBrandsTekmar ManualsHeating SuppliesUniversal Reset Module - Four tN4, Two Boiler, DHW & Setpoint

Electrical Drawings

Module Installation

The electrical drawing examples on the following

pages show the 423 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 Universal Reset Module 423 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 423.

To Install the 423

1. Remove the front cover of the wiring enclosure by

removing the two screws.

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

holding the blank and the Zone Manager in place. Make

sure the Zone Manager stays in place.

3. Discard the blank.

4. The 423 has connector pins protruding from the underside

of the board. The Zone Manager has wiring harnesses

with plugs that connect to these pins. Remove the

required wiring harnesses from their retaining clips in

the enclosure.

5. Carefully connect the Zone Manager’s plugs onto the

pins on the underside of the 423.

•

• There is one smaller gauge connector with three pins and

one larger gauge connector with 2 pins. These connec-

tors can be installed only one way. Take care to ensure

a good connection and avoid bending the pins.

6. Lower the 423 into the enclosure at an angle. Insert the

two tabs on the left side of the 423 in to the corresponding

slots in the left side of the wiring enclosure.

7. Lower the 423 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.