Wiring Guide

ManualsBrandsTekmar ManualsHeating SuppliesZone Expansion Module - Three Zone Pumps

W 326

12/08

Zone Expansion Module 326

- Wiring Brochure

Zone C1 Zone C2

65 66 67 68

Pump Pump

tN4

Meets Class B: Canadian

ICES & FCC Part 15

Made in Canada

10 A (max)

Zone Expansion Module 326

tektra 999-01

Relay Rating: 115 V (ac) 5 A

Zone C3

69 70

Pump N

Zone Group

71 72

Pmp C

Power

Zone Group Pump C

Zone C1

Zone C2

Zone C3

51 52 53 54 55 56 57 58 59 60 61 62

CCWWRRtN4 tN4 C WRtN4

tNt Zone C1 tNt Zone C2 tNt Zone C3

C tN4

Zn Grp C

On/Oﬀ

Zone Group

Pump C

Limited power available, see wiring brochure

H7002B

Information

Brochure

Choose controls

to match

application

Application

Brochure

Design your

mechanical

applications

Rough-in

Wiring

Rough-in

wiring

instructions

Wiring

Brochure

Wiring and

installation of

specific control

Job

Record

Record settings &

wiring details for

future reference

Data

Brochure

Control settings

and sequence of

operation

Overview

tekmar wiring Enclosure (not included)

tekmar Zone Manager

The following wiring brochure describes how to wire the tekmar Zone Expansion Module 326. The 326 is to be installed

in an enclosure together with a tekmar Zone Manager. The 326 controls up to three tekmarNet

4 (tN4) thermostats, three

115 V (ac) zone pumps, and one 115 V (ac) Zone Group Pump. The wiring of tekmarNet

4 (tN4) components is simple

and cost effective.

Summary of content (8 pages)

PAGE 1
- Wiring Brochure W 326 Zone Expansion Module 326 1 Information Brochure Choose controls to match application 2 Application Brochure Design your mechanical applications 3 12/08 Rough-in Wiring 4 5 Wiring Brochure Wiring and installation of specific control Rough-in wiring instructions Data Brochure Control settings and sequence of operation 6 Job Record Record settings & wiring details for future reference Overview The following wiring brochure describes how to wire the tekmar Zone Expansion
PAGE 2
Table of Contents Wiring Symbols & Definitions ........................................2 Wiring the Control .......................................................6-7 Module Installation .........................................................3 Troubleshooting Instructions ..........................................8 Electrical Drawings ......................................................4-5 Technical Data ..............................................................
PAGE 3
Module Installation Install the Zone Expansion Module 326 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 326: To Install the 326 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.
PAGE 4
Electrical Application 326 E1 Description: tekmarNet®4 Zone Expansion Module 326, three tekmarNet®4 Thermostats, three zone pumps, zone group pump.
PAGE 5
Electrical Application 326 E2 Description: tekmarNet®4 Zone Expansion Module 326, three tekmarNet®4 Thermostats, three zone pumps.
PAGE 6
Wiring the Control Terminals 51-72 This section explains how to wire individual devices to the Zone Expansion Module 326. For step by step wiring refer to the terminal number on the right of the page. • Before wiring ensure all power is turned off and take all necessary precautions. • Install the supplied wiring compartment barriers by sliding them into the grooves provided to isolate the low and high voltage wiring. • Strip all wiring to a length of 3/8 in. or 10 mm for all terminals.
PAGE 7
Troubleshooting the Control General The following tests are to be performed using standard testing practices and procedures and should only be carried out by properly trained and experienced persons. Test Meter ### Control Terminals A good quality electrical test meter, capable of reading from at least 0-300 V (ac), 0-30 V (dc), 0-2,000,000 Ohms, and testing for continuity is essential to properly test the wiring and sensors.
PAGE 8
Testing the Zone Group Pump C Output Terminals 71, 72 1. Remove the front cover from the control. • When the Zone Group Pump C light is on, the reading should be 115 V (ac) + / – 10% and the pump should be running. Note: If the pump does not operate properly, refer to any troubleshooting information supplied by the pump manufacturer. 2. Use an electrical test meter to measure the (ac) voltage between the Zone Group Pump C terminals (71-72).