tekmar 401 Quick Start [en, es, fr]

Quick Setup Guide

tekmarNet®2 House Control 401

HVAC Systems

1. Location 2. Install Junction Box

401 401

OR

401_Q

02/14

Replaces: 01/14

3. Install Sensors 4. Line Voltage Wiring

Outdoor Sensor

Back of

House Control 401

(black)
(black)

(black)

(black)

(black)

(red)

to pump
grounds

L

Sensor with rear
entry wiring

Pipe Sensors

Sensor with bottom
entry wiring

Retaining Clip

Universal
Sensor 082

Sensor Well

Sensor mounted onto
2" x 4" electrical box

401

Zone 4

DHW Pump

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

Zone 3

Zone 2

Zone 1

Pump Power

DHW

Zone 4

Zone 3

Zone 2

Zone 1

N

NGL

115 V (ac)

A Watts Water Technologies Company

1

© 2014 401_Q - 02/14

R

C

L
N

Expansion

tN4 Boil

CtN4

Modulating

Boiler

—+

2
1

Back of

House Control 401

Menu

House Control 401

Item

+

ComBoil Out DHWCom

Zone 1

H8006C

Zone 2 Zone 3 Zone 4

tN2 tN2 tN2 tN2 tN2 tN2 tN2 tN2

Sensors - No Power

Call Call

tN4 C

Mod dc/mA Boil Exp.

Setpoint DHW

RC

Input Power

Use at least 167°F
(75°C) conductors

Stage 2Stage 1

5. Install Enclosure

6. Low Voltage Wiring

tekmarNet

®

2 Thermostats

Outdoor

Sensor

070

Boiler Supply

Sensor 082

DHW Tank

Sensor 082

Setpoint Call

DHW Call

from DHW

Tank Aquastat

(optional)

7. Install Cover

M

e

n

u

I

t

e

m

H

o

u

tekmarNet

®

4

Expansion to

Wiring Centers,

Timers, or

User Switch

One or Two Stage

Boiler T-T

24 V (ac) Transformer 009

s

e

C

o

n

t

r

o

l

4

0

2

A Watts Water Technologies Company

2

© 2014 401_Q - 02/14

8. User Interface

Display

Symbols

Calls

Pumps

Menu Field

Displays the

current menu

VIEW
ADJUST

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.

MONITOR

MAXMIN

Calls

Boil Exp

DHW Setp

Pumps WWSD Saving

Zones

DHW 1 2 3 4

WWSD

°F°C

minhr

sec%

Item Field

Displays the name
of the selected item

min

sec

PM

hr

AM

Number Field

Displays the
current value of
the selected item

1 2

WWSD

Displays when the system is in Warm
Weather Shut Down.

°F, °C, %, HOURS, MINUTES, SECOND

Units of measurement for current number.

Zones

1 2 3 4

Saving

ZONES

Displays if an on-board zone is operating.

WARNING

Displays if an error exists on the system.

ENERGY SAVING INDICATOR

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

9. Access Level

INST (Installer)

or USER

Default = INST

UNOCCUPIED

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

BOILER

Indicates that the boiler should be
heating.

MIN / MAX

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.

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

A Watts Water Technologies Company

3

© 2014 401_Q - 02/14

10. 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

VIEW

-60 to 45°F

(-51.0 to 7.0°C)

Default = 10°F

(-12.0°C)

EMS2,
EMS1,

4-20

0-10,

2STG,

1STG

Default = 1STG

70 to 200°F

(21.0 to 93.5°C)

Default = 180

°F

(82.0°C)

Installer

Installer

Installer

OUTDOOR DESIGN

Typically set to the temperature of the coldest day of
the year. The outdoor air temperature used in the boiler
heating curve is used to determine the boiler target
temperature.

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

BOILER DESIGN

The supply water temperature required for the boiler
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)

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

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

Product design, software and literature are Copyright ©2014 by
tekmar Control Systems Ltd.,

A Watts Water Technologies Company

Head Offi ce: 5100 Silver Star Road,

4

All specifications are subject to change without notice.

Printed in Canada. 401_Q - 02/14.