tekmar 402 Quick Start [en, es, fr]

Quick Setup Guide

tekmarNet®2 House Control 402

HVAC Systems

1. Location 2. Install Junction Box

402_Q

02/14

Replaces: 01/14

402

3. Size Transformer

Zone

Thermostat Load

Zone Valve Load

Total Zone Load

1234

Floating

Action (VA)

+ ++++

Control

Load (VA)

4. Install Sensors 5. Line Voltage Wiring

Outdoor Sensors

Transformer

must exceed:

Sensor with rear entry wiring

Pipe Sensors

A Watts Water Technologies Company

Sensor with bottom entry wiring

Retaining Clip

Universal Sensor 082

Sensor Well

Sensor mounted onto 2" x 4" electrical box

Mix

Boil

DHW

(black)

(red)

(blue)

Variable

115 V (ac)

Speed

to pump grounds

Back of House Control 402

Mix System Pump

Boil System Pump

DHW Pump

Pump Power L

Variable Speed Pump

Strip wires 1/2 inch (13 mm). Installed wires are not removable. 12-18 AWG

6. Install Enclosure

Com Open Close

Expansion

tN4 Boil

CtN4

Modulating

Boiler

—+

Expansion

tN4 Mix

CtN4

2 1

House Control 402

Item

Mix ComBoil Out DHW

VlvC VlvC VlvC

Zone 3Zone 1 Zone 2 Zone 4

VlvC

Com

Zone 1

H8007D

Zone 2 Zone 3 Zone 4

tN2 tN2 tN2 tN2 tN2 tN2 tN2 tN2

Floating Action

ClsOpn

Sensors - No Power

Call Call

tN4 tN4CC

Mod dc/mA Boil Exp. Mix Exp.

Setpoint DHW

Use at least 167°F (75°C) conductors

Input Power

Stage 2Stage 1

7. Low Voltage Wiring

tekmarNet

Mix Supply

Sensor 082

Outdoor

Sensor

070

Boiler Supply

Sensor 082

DHW Tank

Sensor 082

2 Thermostats

24 V (ac) Floating

Action Actuator

tekmarNet

Expansion to

Wiring Centers,

Timers, or

User Switch

Setpoint Call

DHW Call

from DHW

Tank Aquastat

(optional)

8. Install Cover

Zone Valves

24 V (ac) Transformer 009

One or Two Stage

Boiler T-T

A Watts Water Technologies Company

9. User Interface

Display

Menu Field

Displays the

current menu

Item Field

Displays the name of the selected item

VIEW ADJUST

Symbols

Calls

Pumps

Zones

1 2 3 4

Status Fields

Displays the current

status of the control’s

inputs, outputs and

operation. Most symbols

in the status field are only visible when the

VIEW Menu is selected

CALLS

Displays any call for heat the control is receiving.

PUMPS

Displays any pump currently operating.

ZONES

Displays if an on-board zone is operating.

WARNING

Displays if an error exists on the system.

MONITOR

MAXMIN

Calls

Boil Exp

Mix Exp

DHW Setp

Pumps WWSD Saving

Boil System

Mix System Zones

DHW Var 1 2 3 4

°F°C

minhr

sec%

min

sec

Number Field

Displays the current value of the selected item

Cls

Opn

1 2

Mix

°F, °C, %, HOURS, MINUTES, SECOND

Units of measurement for current number.

UNOCCUPIED

Indicates that a User Switch or Timer has put the system into UnOccupied.

BOILER

Indicates that the boiler should be heating.

DEVICE OUTPUT SCALE

Displays output of the mixing valve or injection pump.

ENERGY SAVING INDICATOR

Saving

WWSD

Displays when the system is saving energy. See the Saving Indicator section.

WWSD

Displays when the system is in Warm Weather Shut Down.

10. Access Level

INST (Installer)

Default = INST

or USER

Cls

Opn

MAXMIN

Press menu button until the Toolbox Menu is displayed. Press item button to locate the access level setting.

ACCESS LEVEL

Selects the Access Level of the control, which determines the Menu items available. USER provides the most limited level of access and shows the fewest possible items.

When set to USER, all thermostats are locked and the number of thermostat settings available are reduced.

CLOSE / OPEN

Displays whether the mixing valve motor is opening or closing.

MIN / MAX

Displays when an operating temperature reaches a minimum or maximum value.

A Watts Water Technologies Company

11. Critical Settings

Press menu button until the Adjust Menu is displayed. Press item button to locate the desired setting.

Item Field Range Access Description Set to

ADJUST

-60 to 45°F

(-51.0 to 7.0°C)

Default = 10°F

(-12.0°C)

70 to 180°F

(21.0 to 82.0°C) Default = 120°F

(49.0°C)

4-20 mA,

0-10 V (dc)

FLOT,

VAR

Default = VAR

Installer

OUTDOOR DESIGN

Typically set to the temperature of the coldest day of the year. The outdoor air temperature used in the boiler and mixing heating curves that determine the boiler target and the mix target temperatures.

MIX DESIGN

The supply water temperature required for the mix zones to heat the building on the typical coldest day of the year. Recommendations:

High mass radiant floor = 120°F (50°C) Low mass radiant floor = 140°F (60°C) Fancoil or air handling unit = 190°F (90°C) Copper fin-tube convector = 180°F (80°C) Radiators = 160°F (70°C) Low profile baseboard = 150°F (65°C)

MIX TYPE

Select the type of mixing device. VAR = Variable speed injection pump FLOT = Floating action motor for mixing valves 0-10 = 0 -10 V (dc) analog signal for mixing valves 4-20 = 4-20 mA analog signal for mixing valves Note: 0-10 and 4-20 are only available when Boiler

Type = 1 Stage or 2 Stage.

EMS2, EMS1,

4-20

0-10,

2STG,

1STG

Default = 1STG

tekmar Control Systems Ltd., A Watts Water Technologies Company.

Vernon, B.C. Canada V1B 3K4, 250-545-7749, Fax. 250-545-0650 Web Site: www.tekmarControls.com

A Watts Water Technologies Company

Installer

BOILER TYPE

The type of boiler connected to the control. 1STG = single one-stage on-off boiler 2STG = single two-stage on-off boiler 0-10 = 0-10 V (dc) modulating boiler 4-20 = 4-20 mA modulating boiler EMS1 = tekmar boiler staging controls EMS2 = Viessmann modulating boilers with

OpenTherm Note: Only 1STG and 2STG are available when the

Mix Type is set to 0-10 V (dc) or 4-20 mA.

Head Ofﬁ ce: 5100 Silver Star Road,

All specifications are subject to change without notice.

Printed in Canada. 402_Q - 02/14.

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