tekmar 161 Installation

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Page 1

- Data Brochure

•

D 161

tekmarNet®4 Setpoint Control 161

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

Introduction

The Setpoint Control 161 is a single stage heat setpoint control that can operate on an On / Off differential or can operate on Pulse Width Modulation. The control includes special modes for hot tub, domestic hot water tank and radiant floor applications.

Features

• tN4 Compatible

• On / Off Differential

• Hot Tub Operation

• DHW Tank Operation

• Floor Operation

• Exercising

• Scenes

• Temperature Sensor Input

08/07

Data

Brochure

Control settings

and sequence of

operation

Job

Record

Record settings &

wiring details for

future reference

Page 2

•

Table of Contents

•

Table of Contents .............................. 2

Display and DIP Switches ................ 2

Dip Switches ................................. 2

Access Levels ............................... 3

Display .......................................... 3

Symbol Description ........................ 4

User Interface ............................... 4

Application Overview ........................ 5

On / Off Differential ......................... 5

Pulse Width Modulation ................ 6

Display Menus ................................. 7

VIEW Menu ................................... 7

ADJUST Menu ..............................10

SCENE Menu ...............................15

SCHEDULE Menu ........................16

MISCELLANEOUS Menu .............17

Sequence of Operation ...................19

Mode 1 - On / Off Setpoint ...........19

Mode 2 - Hot Tub ..........................19

Mode 3 - DHW Tank ................... 20

Mode 4 - Floor ............................ 21

Remote Enable / Disable ................ 22

Sensor Input ................................... 23

Setting the Schedule ...................... 23

Scenes ............................................ 24

Restore Factory Defaults ................ 25

Temperature Units .......................... 25

Backlight ........................................ 25

tN4 Features .................................. 25

Error Messages .............................. 28

Cleaning the Control ...................... 34

Warranty ......................................... 36

Display and DIP Switches

DIP Switches

Lock / Unlock (DIP Switch #1)

Use the Lock / Unlock DIP switch to lock or unlock the Access Level of the 161.

• To unlock the Access Level, set the DIP switch to the unlocked (left) position.

• To lock the Access Level, set the DIP switch to the locked (right) position. Once

locked, a padlock is displayed in the lower right corner of the display and the Access Level cannot be changed.

Note: The tN4 System Control’s Lock / Unlock DIP switch overrides the Lock / Unlock

DIP switch on the 161. Set the tN4 System Control’s Lock / Unlock DIP switch to the Unlock position before Access Levels can be changed on the setpoint control.

tN4 System Control (DIP Switch #2)

A tN4 System Control is a control, not a thermostat, that the Setpoint Control 161 connects to through the tN4 bus. All tN4 compatible Outdoor Reset Modules are tN4 System Controls.

For product instructions see brochure

• If the setpoint control is connected to a tN4 System Control, set the tN4 System Control DIP switch to tN4 System Control (left position).

• If the setpoint control is not connected to a tN4 System Control, set the tN4 System Control DIP switch to None (right position).

Use at least 194°F (90°C) conductors

tN4 Setpoint Control 161

One Stage Heat

24 V ±10% 50/60 Hz 1.7 VA

Power:

24 V (ac) 2 A

Relays:

Cut jumper to isolate relay

Feb 2006 Lot 1948

Meets Class B: Canadian ICES FCC Part 15

161

Page 3

•

Access Levels

The Access Level restricts the number of Menus, Items and Adjustments that can be accessed by the user. The Access Level setting is found in the Miscellaneous (MISC) menu. Select the appropriate access level for the people who work with the setpoint control on a regular basis.

The 161 has five Access Levels:

• Advanced

• Installer

• User (USEr): for property owners

• Limited (LTD): limited temperature adjustment

• Secure (SEC): for commercial and public installations

In the Limited access level, the temperature can only be adjusted by +/-3°F (1.5°C) from the temperature setting entered prior to entering the Limited access level.

In the Secure access level, all settings, including the temperature, cannot be changed.

For more information, see the Miscellaneous (MISC) Menu section. In the following menu tables, the access level the item is visible in is shown in the

access column. To adjust the Access Level:

1. Set the Unlock / Lock DIP switch to the unlock position. If a tN4 System Control is connected to the 161, the Unlock / Lock DIP switch on the tN4 System Control must be set to the unlock position.

2. Use the Menu button to select the MISC menu.

3. Use the Item button to select the Access item.

4. Use the Up and Down button to select the required Access Level.

(ADV)

: access to all settings

(InST)

: settings required for installation

Display

Menu Field

Displays the

current menu

Status Field

Displays the

current status of the control’s inputs, outputs

and operation

Item Field

Displays an abbreviated name of the selected item

Number Field

Displays the current value of the selected item

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Symbol Description

•

MODE OF OPERATION

Displays whether the device is in heating or off mode.

RELAY 1

Displays when relay contact 1 is closed.

WARNING

An error is present.

tN4 COMMUNICATION

A tN4 network is detected.

LOCK

The Access Levels are locked or a menu option is visible but not adjustable.

OCCUPIED

Displays when operating at the occupied temperature.

UNOCCUPIED

Displays when operating at the unoccupied setback temperature.

TIME OCCUPIED

Displays when operating temporarily at the occupied temperature due to a remote enable or manual enable.

User Interface

Use the User Interface available on the Liquid Crystal Display (LCD) to setup and monitor the operation of the setpoint control. Use the four push buttons below the LCD (Menu, Item, Up, Down) to select settings. As the settings are entered, record the settings in the Job Record J 161.

The menus display in the Menu Field at the left of the LCD.

Up to 5 menus are available:

• VIEW

• ADJUST

• SCENE

• SCHD (Schedule)

• MISC (Miscellaneous)

To select a menu, press and release the Menu button.

Item

In each menu, a group of items can be selected. The abbreviated name of the selected item displays in the Item field of the LCD display.

• To view the next available item, press and release the Item button.

• To view the previous item, hold down the Item button and press and release the Up button.

Adjusting a Setting

To adjust a setting:

1. Use the Menu button to select the appropriate menu.

2. Use the Item button to select a menu item.

3. Use the Up or Down button to adjust the setting.

Page 5

Default Item

To set the default item in the VIEW Menu, display item for more than five seconds. After navigating menus, the display reverts back to the default item after 60 seconds

of button inactivity.

Continue to next Item

Continue to next Menu

Application Overview

The Setpoint Control 161 is designed to support four different applications. The items shown in the VIEW and ADJUST Menu change depending on the Application Mode.

Set the application mode as follows:

1) Setpoint

2) Hot Tub

3) DHW Tank

4) Floor

The VIEW and ADJUST menus list which of the four application items are visible based upon the mode column.

The TIME, SCENE, SCHD (Schedule) and MISC (Miscellaneous) menus are the same for the four application modes.

Applications: On / Off Differential

Mode 1 Setpoint (On / Off) Mode 2 Hot Tub

Load

Page 6

Mode 3 DHW Tank

Heating Operation

When heating, the setpoint control turns on Relay 1 when the temperature falls to 1/2 of the differential below the setpoint and turns off Relay 1 once the temperature reaches 1/2 of the differential above the setpoint.

Differential

Relay 1 On / Off Differential Operation

The On / Off Differential operates by centering a differential range around the target setpoint temperature. On / Off differentials are best suited to heating loads that quickly change temperature.

Applications: Pulse Width Modulation

Heating On / Off Differential

Relay 1

Target + ½ Differential

Tar get

Target – ½ Differential

Mode 4 Floor

Relay 1 Pulse Width Modulation (PWM) Operation

PWM operates by centering the throttling range around the target setpoint temperature. PWM is best suited for large heating loads that do not change rapidly in temperature such as radiant floors.

Heating Operation

When the temperature is at the setpoint, Relay 1 is on for 50% of a cycle and off for 50% of a cycle. When the temperature is 1/2 of the throttling range below the setpoint, Relay 1 is on for 100% of a cycle. When the temperature is 1/2 of the throttling range above the setpoint, Relay 1 is off for 100% of a cycle. For ranges within the throttling range, Relay 1’s on time increases linearly as temperature falls. The throttling range is fixed at 3°F (1.5°C).

The cycle length is either the same as the tN4 system control, or when a tN4 system control is not present, the cycle length is fixed at 15 minutes.

Heating PWM Operation

Set Heat

Heat

Relay 1

Relay 1OnRelay 1

Cycle Length

Warmer

Page 7

The VIEW menu items display the current operating

temperatures and status information of the system.

OCCUPIED TIME SECTION B, D, E

Displays the amount of time left on the manual override.

The setpoint device operates at the Occupied temperature

and then reverts back Scheduled temperature. Time

counts down to 0:00 hours.

Cancel the override by pressing the Up and Down

buttons together at the same time or through the user

This item is only available when a programmable

switch or gateway.

Note:

setback schedule or normally unoccupied has been

selected.

SETPOINT SECTION A

Displays the measured setpoint sensor temperature.

VIEW Menu (1 of 3)

Display Menus

Mode Item Field Range Access Description

LTD

USEr

ADV

InST

0:01 to 24:00 hr

SEC

LTD

-31 to 266°F

InST

USEr

(-35.0 to 130.0°C)

ADV

Continued on next page.

VIEW MENU

Page 8

SECTION B

HOT TUB

Displays the measured hot tub temperature.

DHW TANK SECTION C

Displays the measured domestic hot water tank

temperature.

FLOOR SECTION D

Displays the measured floor temperature.

SET SETPOINT SECTION A

Display the desired temperature.

LTD

SEC

-31 to 266°F

Mode Item Field Range Access Description

InST

USEr

(-35.0 to 130.0°C)

ADV

VIEW Menu (2 of 3)

SEC

LTD

USEr

-31 to 266°F

ADV

InST

(-35.0 to 130.0°C)

SEC

LTD

-31 to 266°F

InST

USEr

(-35.0 to 130.0°C)

ADV

VIEW MENU

InST

USEr

OFF, -4°F (-20.0°C)

to Setpoint Maximum

ADV

(variable)

Continued on next page.

Page 9

SECTION B

SET HOT TUB

Display the desired temperature.

SET DHW SECTION C

Display the desired temperature.

SET FLOOR SECTION D

Display the desired temperature.

SUPPLY TEMP OF tN4 BUS SECTION L

Actual water temperature of the tN4 bus for heating.

Note: This item is only available when the setpoint control

is connected to a tN4 System Control, DIP switch 2 is set

to tN4 System Control, and the Heat Source item in the

ADJUST menu is set to hydronic (HYDr).

InST

USEr

OFF, -4°F (-20.0°C)

to Hot Tub Maximum

Mode Item Field Range Access Description

ADV

(variable)

InST

USEr

to DHW Maximum

OFF, -4°F (-20.0°C)

ADV

(variable)

InST

USEr

to Floor Maximum

OFF, -4°F (-20.0°C)

ADV

(variable)

ADV

InST

-31 to 266°F (-35.0 to 130.0°C)

After the last item, the control returns to the first item in the menu.

VIEW MENU

VIEW Menu (3 of 3)

Page 10

The ADJUST Menu items are the programmable

settings used to operate the mechanical equipment.

APPLICATION MODE SECTION A, B, C, D

Select the application for the setpoint control.

1 = Setpoint

be adjusted by +/-3°F (1.5°C) from the temperature setting

2 = Hot Tub

3 = DHW Tank

4 = Floor

MODE OF OPERATION SECTION B

Select to either heat or turn off the hot tub.

SET SETPOINT OCCUPIED SECTION A

Select the setpoint temperature for the occupied period.

entered prior to entering the Limited access level.

Note: In the Limited Access Level, the temperature can only

ADV

InST

1, 2, 3, 4

Default = 1

Mode Item Field Range Access Description

ADJUST Menu (1 of 5)

InST

USEr

HEAT, OFF

ADV

Default = HEAT

LTD

(-20°C) to

OFF, -4°F

InST

USEr

Setpoint

Maximum

ADV

(71.0°C)

Default = 160°F

Continued on next page.

ADJUST MENU

Page 11

SECTION B

be adjusted by +/-3°F (1.5°C) from the temperature setting

SET HOT TUB OCCUPIED

Select the hot tub temperature for the occupied period.

LTD

USEr

OFF, 40°F

(4.5°C) to Hot

entered prior to entering the Limited access level.

Note: In the Limited Access Level, the temperature can only

ADV

InST

(39.0°C)

Tub Maximum

Default = 102°F

SET DHW TANK OCCUPIED SECTION C

OFF, 40°F

In the Limited Access Level, the temperature can only

Select the domestic hot water tank temperature for the

LTD

(4.5°C) to DHW

be adjusted by +/-3°F (1.5°C) from the temperature setting

occupied period.

Note:

ADV

InST

USEr

(54.5°C)

Maximum

Default = 130°F

entered prior to entering the Limited access level.

In the Limited Access Level, the temperature can only

be adjusted by +/-3°F (1.5°C) from the temperature setting

SET FLOOR OCCUPIED SECTION D

Select the floor temperature for the occupied period.

LTD

USEr

OFF, 40°F

(4.5°C) to Floor

entered prior to entering the Limited access level.

Note:

ADV

InST

(26.5°C)

Maximum

Default = 80°F

SETPOINT MAXIMUM SECTION A,

ADV

(10.0 to

115.0°C)

50 to 239°F

Select the maximum setpoint temperature range

adjustment.

(93.5°C)

Default = 200°F

Mode Item Field Range Access Description

ADJUST MENU

ADJUST Menu (2 of 5)

Continued on next page.

Page 12

SECTION B

HOT TUB MAXIMUM

Select the maximum hot tub temperature range

adjustment.

DHW MAXIMUM SECTION C

Select the maximum domestic hot water tank temperature

range adjustment.

FLOOR MAXIMUM SECTION D

Select the maximum floor temperature range

adjustment.

DIFFERENTIAL

Select the differential to cycle on and off around the setpoint

temperature.

ADV

50 to 104°F

(10.0 to 40.0°C)

Mode Item Field Range Access Description

(40.0°C)

Default = 104°F

ADV

50 to 200°F

(10 to 93.5°C)

(60.0°C)

Default = 140°F

ADJUST Menu (3 of 5)

ADV

50 to 110°F

(10.0 to 43.5°C)

(29.5°C)

Default = 85°F

ADJUST MENU

InST

1 to 40°F

(0.5 to 22.0°C)

ADV

(5.5°C)

Default = 10°F

Continued on next page.

Page 13

SECTION L

HEAT SOURCE

Select whether the heat source is hydronic (HYDr) or other

(OTHr) when the setpoint control is connected to a tN4

InST

HYDr, OTH

This item is only available when DIP switch 2 is set

System Control.

Note:

ADV

HYDr

Default =

to tN4 System Control.

EXCHANGE SUPPLY OCCUPIED

Select the desired supply water temperature required on

60 to 220°F

period.

Note: This item is only available when DIP switch 2 is set

ADV

104.5°C) Default = 180°F

to tN4 System Control, and the Heat Source item in the

(82.0°C)

the tN4 bus to heat the setpoint load during the occupied

InST

(15.5 to

ADJUST menu is set to hydronic (HYDr).

PRIORITY SECTION L

Select if the setpoint control has priority over the heating

system.

This item is only available when DIP switch 2 is set

to tN4 System Control, and the Heat Source item in the

ADJUST menu is set to hydronic (HYDr).

Note:

ADV

InST

On, OFF

Default = OFF

Priority is not available when connected to a mix

tN4 bus.

Note:

Mode Item Field Range Access Description

Continued on next page.

ADJUST MENU

ADJUST Menu (4 of 5)

Page 14

SECTION L

RELAY 1 PUMP

Select whether a system pump from a tN4 system control

should operate whenever relay 1 is closed.

InST

OFF, On

This item is only available when DIP switch 2 is set

to tN4 System Control, and the Heat Source item in the

ADJUST menu is set to hydronic (HYDr).

Note:

ADV

Default = On

SETPOINT DEVICE ENABLE SECTION E

Select the Setpoint Device Enable number to allow a

remote device such as a User Switch to activate the Time

OFF, 1 to 12

This item is only available when the setpoint control

Occupied override. The control then maintains the occupied

ADV

Default = 1

has tN4 communication.

temperature for a preset amount of time.

Note:

Mode Item Field Range Access Description

ADJUST Menu (5 of 5)

After the last item, the control returns to the first item in the menu.

ADJUST MENU

Page 15

Description

The SCENE Menu items set the current scene as well

as the scene settings.

RUN TIME OCCUPIED SECTION B, D, E

Select the amount time for the setpoint control to operate at

Access

Item Field Range

This item is only available in Application Mode 2

the occupied temperature when a Setpoint Device Enable

(Hot Tub) or 4 (Floor) if a programmable setback schedule

is provided.

Note:

LTD

InST

USEr

24:00 hr, On

OFF, 0:05 to

(in 5 min. increments)

This item is only available in Application Mode 1

is selected.

if a programmable setback schedule is selected and the

Setpoint Device Enable setting in the ADJUST menu is set

Note:

ADV

Default = 1:00

from 1 through 12.

SCENE MENU SECTION H

Select whether or not to use the scene feature on the

ADV

InST

OFF, On

Default = OFF

setpoint control.

SCENE MENU

After the last item, the control returns to the first item in the menu.

SCENE Menu (1 of 1)

Page 16

The SCHEDULE menu allows the setpoint control to

follow a schedule.

Description

HEAT SCHEDULE SECTION G

Selects the schedule used by the setpoint control.

Access

This item can be viewed in the USEr and InST

If a schedule is not required, select NONE.

If the schedule is set on another thermostat or setpoint

control, select Mbr1 to Mbr4.

ADV

InST

Mbr3, Mbr4, UnOc

NONE, Mbr1, Mbr2,

(Installer) access levels but can only be adjusted in the

UnOc is not available in Mode 3.

Note:

Default = NONE

ADV (Advanced) access level.

Item Field Range

SCHD (Schedule) Menu (1 of 1)

After the last item, the control returns to the first item in the menu.

SCHEDULE MENU

Page 17

The Miscellaneous menu items set display and control

options such as access level and temperature units.

Description

ACCESS LEVEL

The access level of the setpoint control. The access column

shows which items are visible in each access level.

the Unlock position and the tN4 system control DIP switch is

set to the Unlock position.

Note: This item is only available when DIP switch 1 is set to

UNITS SECTION J

Select Fahrenheit or Celsius as the temperature units.

BACKLIGHT SECTION K

Select whether the backlight displays permanently, temporarily,

or is off. The temporary backlight lasts for 30 seconds.

Access

Item Field Range

LTD

SEC

SEC, LTD, USEr,

ADV

InST

USEr

InST, ADV

Default = USEr

InST

USEr

°F, °C

ADV

Default = °F

ADV

InST

Default = TMPY

ON, TMPY, OFF

MISC MENU

MISC (Miscellaneous) Menu (1 of 2)

Continued on next page.

Page 18

SECTION L

Description

This item is only available when the setpoint control

NUMBER OF DEVICES

Access

Item Field Range

has tN4 communication.

Number of tN4 devices connected to this tN4 bus.

Note:

– – –, 1 to 24 ADV

This item is only available when the setpoint control

ADDRESS SECTION L

The tN4 bus address of this setpoint control.

Auto allows the tN4 system to automatically assign an address

to the setpoint control.

To manually set the address, use the Up or Down buttons while

LTD

SEC

USEr

AUTO

bus#:01 to bus#:24,

has tN4 communication.

in the ADV (Advanced) or InST (Installer) access level.

Note:

ADV

InST

Default = AUTO

RESTORE DEFAULTS

Press the Up and Down buttons together to load the factory

InST

defaults. The SELECT icon appears and then the display shows

DONE when the factory defaults have been completed.

ADV

TYPE

Product number of this setpoint control. Hold the Up button

to view the software version.

LTD

SEC

USEr

161, Software

InST

Version

ADV

MISC (Miscellaneous) Menu (2 of 2)

MISC MENU

After the last item, the control returns to the first item in the menu.

Page 19

Sequence of Operation

Application Mode 1 - On / Off Setpoint SECTION A

Application Mode 1 is a generic setpoint control operation using an on/off differential for heating. The sensor is required to be located at the temperature control point. The setpoint control can have an occupied temperature setting. The setpoint load is not heated during the unoccupied or away periods.

Relay 1 Operation

Relay 1 operates using an on/off differential to maintain the load at the Occupied temperature. Relay 1 does not operate during the Unoccupied or Away periods.

Setting the Setpoint Off

The setpoint temperature can be set to Off. When set to Off, Relay 1 will not turn on. If the heating area is outdoors, or the heating system has the potential to freeze, it is recommended that the setpoint always be set to a temperature and not set to Off.

The setpoint can be set to Off if the heating system can be drained or the pump should remain off.

The setpoint control power should never be shut off, otherwise an error message will appear on the rest of the tN4 system.

Load

Application Mode 2 - Hot Tub SECTION B

Application Mode 2 is designed specifically to heat hot tubs using an on/off differential. A sensor must be located in a temperature well on the recirculation pipe. The hot tub can have an occupied temperature setting.

Relay 1 Operation

Relay 1 operates using an on/off differential to maintain the load at the Occupied temperature. During the Unoccupied period, Relay 1 is operated to maintain 10°F (5.5°C) less than the Occupied temperature setting. During the Away scene, Relay 1 is operated to maintain the Hot Tub at 50°F (10.0°C).

Page 20

Mode of Operation

The hot tub mode of operation can be set to either Heat or Off. While set to Off, Relay 1 remains off. The Off setting should only be used when the hot tub is drained or when there is no possibility of freezing. Power should never be removed from the setpoint control as this will result in an error message on the tN4 system.

Occupied Time

The setpoint control can temporarily override the scheduled temperature and operate at the occupied temperature on a timer.

Press the Up or Down buttons while in the View menu to set the amount of time that the occupied temperature should remain in effect.

To use this feature, a programmable schedule must be set or the schedule be set to normally operate at the unoccupied setting. When the schedule is set to unoccupied, the setpoint control operates at the unoccupied setting until activated.

The length of time the setpoint remains at the occupied temperature is preset by the Run Time Occupied item located in the Scene menu.

To cancel the temporary occupied time, press and hold the Down button until the display shows OFF, at which point, the setpoint control returns to the schedule.

Pressing the UP button while in the VIEW menu starts operation of the Hot Tub for the time set.

To Stop operation press the DOWN button until the time shows OFF.

Application Mode 3 - DHW Tank SECTION C

Application Mode 3 is designed specifically to operate a domestic hot water (DHW) tank using an on/off differential. A sensor must be located in a temperature well inside the DHW tank. The DHW tank can have an occupied temperature setting. The DHW tank is not heated during the unoccupied and away periods.

Relay 1 Operation

Relay 1 operates using an on/off differential to maintain the load at the Occupied temperature. Relay 1 does not operate during the Unoccupied or Away periods.

Page 21

Application Mode 4 - Floor SECTION D

Application Mode 4 configures the setpoint control for floor warming and floor heating applications using pulse width modulation. Floor warming is not necessarily designed to heat the room, but to make the floor feel warm to the touch. This is common especially in bathrooms. A sensor must be located within the slab between the heating pipes. The setpoint control allows a Floor temperature to be set for the occupied period. The floor is not heated during the unoccupied or away periods.

Relay 1 Operation

Relay 1 operates using pulse width modulation to maintain the load at the Occupied temperature. Relay 1 does not operate during the Unoccupied or Away periods.

Occupied Time

The setpoint control can temporarily override the scheduled temperature and operate at the occupied temperature on a timer.

Press the Up or Down buttons while in the View menu to set the amount of time that the occupied temperature should remain in effect.

The length of time the setpoint remains at the occupied temperature is preset by the Run Time Occupied item located in the Scene menu.

To cancel the temporary occupied time, press and hold the Down button until the display shows off, at which point, the setpoint control returns to the schedule.

Pressing the UP button while in the VIEW menu starts operation of the Hot Tub for the time set.

To Stop operation press the DOWN button until the time shows OFF.

Page 22

Remote Enable / Disable SECTION E

To use the Remote Enable / Disable feature, the setpoint control must be set to Mode 1 (Setpoint), 2 (Hot Tub), or 4 (Floor). When the setpoint control is connected to a tN4 system, a User Switch or tN4 Gateway can remotely signal a setpoint control (or multiple setpoint controls) to override the unoccupied temperature to temporarily operate at the occupied temperature. The Setpoint Control, User Switch and tN4 Gateway each have a setting called Setpoint Device Enable that can be assigned a number between 1 and 12. When devices have the same Setpoint Device Enable number, then either pressing the button on the User Switch or activating the feature on the tN4 Gateway causes the Setpoint Control to operate at the occupied temperature. Sending a second Setpoint Device Enable cancels the override and the setpoint control returns to the unoccupied temperature. A total of 12 different Setpoint Devices Enables can be configured on the tN4 system.

To create a Setpoint Device Enable:

1) DIP switch 2 must be set to tN4 system control.

2) A User Switch or tN4 Gateway should be connected to one of the tN4 buses.

3) Set the Setpoint Device Enable item in the Adjust menu to a number between 1 and 12.

4) Set the Setpoint Device Enable on the User Switch or tN4 Gateway to the same number between 1 and 12.

Control

Setpoint Device

Enable Number

User SwitchSetpoint

Setpoint Device

Enable Number

User

Button

User

Button

User

Button

The schedule on the setpoint control must be set to either Schedule Member, or to Unoccupied to allow the temporary occupied time override to operate. When the schedule is set to Unoccupied, the setpoint control operates at the unoccupied setting until activated.

The length of time the setpoint remains at the occupied temperature is preset by the Run Time Occupied item located in the Scene menu.

Remote activation of the setpoint control requires the same Setpoint Device enable number to be set on the setpoint control and on a User Switch 480 or 481 (or tN4 Gateway).

Setpoint

Control

UnOcc

User Switch

User Button

Press Button

Setpoint

Control

Occ

Page 23

Sensor Input SECTION F

The Setpoint Control 161 requires a temperature sensor (Universal Sensor 071 included) to be connected to the sensor input on the back of the control. All tekmar sensors are compatible. Choose the sensor type that best meets the requirements of the application. See application mode diagrams for the recommended location of the sensor.

Setting the Schedule SECTION G

To provide greater energy savings, the setpoint control can follow a schedule master when connected to a tN4 system. Alternatively, the setpoint control can normally operate at the unoccupied temperature until activated to the occupied temperature.

During the Unoccupied and Away periods, the Setpoint, DHW tank, and the Floor are not heated.

During the Unoccupied period, the Hot Tub is heated to the Occupied temperature minus 10°F (5.5°C). While in the Away scene, the Hot Tub is maintained at 50°F (10.0°C).

Members of

Schedule 1

Zone 12

Master

Schedule 1

4 5

None

Zone

Schedule

Master

Schedule 2

7 8

Members of

Schedule 2

Schedule Member

If a Master Schedule is available on the tN4 system, the setpoint control can follow the Master Schedule as a member.

To follow a master schedule as a member:

1. Assign the setpoint control to follow a master schedule by setting the Schedule menu item in the Schedule menu to Member (MBR) 1 to 4. The number must match that of the Master.

Normally Unoccupied

The setpoint control can be set to normally operate at the unoccupied temperature. This allows the setpoint control to temporarily be set to the occupied temperature by either pressing the Up or Down buttons in the View menu or by a remote enable.

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Scenes SECTION H

Scenes are a system override feature available when the setpoint control is part of a tN4 system. Scenes allow the user to change the entire tN4 system to operate at preset temperatures.

To use the scene function, go to the Scene menu and set the Scene setting to On. The tN4 scene can be changed through the scene menu on a tN4 thermostat, a

tN4 User Switch or through a tN4 Gateway. The setpoint control reacts to the scene as follows:

Scene Setpoint Control Temperature

1 Follows the schedule 2Away 3 Unoccupied (no effect if schedule is Off) 4 Not valid, remains at previous scene 5 Not valid, remains at previous scene 6 3 hour Occupied 7 Not valid, remains at previous scene 8 Not valid, remains at previous scene

The default is for the tN4 system to remain in Scene 1. During the Unoccupied and Away periods, the Setpoint, DHW tank, and the Floor

are not heated. During the Unoccupied period, the Hot Tub is heated to the Occupied temperature

minus 10°F (5.5°C). While in the Away scene, the Hot Tub is maintained at 50°F (10.0°C).

Example:

A house is normally in scene 1. There is a living room that operates on a schedule and there is a hot tub that is normally at the unoccupied temperature. When entertaining guests, the scene is changed to scene 6. Scene 6 has been preprogrammed to change the hot tub to operate at the occupied temperature.

Living room thermostat: Scene 1 is set to Schedule.

Scene 6 is set to Schedule. Hot tub setpoint control: Scene 1 is set to Unoccupied.

70°F

Scheduled

Event

94°F

Hot Tub

Unoccupied

70°F

Living RoomLiving Room Scheduled

Event

104°F

Hot Tub

Occupied

Scene 6 is set to Occupied.

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Restore Factory Defaults SECTION I

•

To restore the factory defaults, locate the Default item in the Miscellaneous menu and press and hold the Up and Down buttons for 1 second. The display will show “SELECT” and when completed it will show “DONE”.

Temperature Units SECTION J

The setpoint control can display temperatures in either Fahrenheit (°F) or in Celsius (°C).

• Locate the units setting in the Miscellaneous menu.

Backlight SECTION K

Use the setpoint control’s backlight to increase the visibility of the display. The backlight can be set to On, Temporary, or Off. If Temporary is selected, the backlight comes on for 30 seconds when a button is pressed. By default, the backlight is Temporary. If Off is selected the backlight remains permanently off.

• Locate the Backlite setting in the Miscellaneous menu.

tN4 Features SECTION L

When the setpoint control is connected to a tN4 system, the setpoint control has additional features not present when operating alone.

tN4 Bus

When connecting the setpoint control to a tN4 system, there may be several tN4 buses available. The setpoint control should be connected to the tN4 bus that best represents the water temperature required for the setpoint load. Typically, the setpoint control should be connected to the boiler tN4 bus for Application Modes 2 (Hot Tub) and 3 (DHW Tank). Typically the setpoint control should be connected to a mix tN4 bus for Application Mode 4 (Floor).

Heat Source

When the setpoint control is part of a tN4 system, the Heat Source item in the Adjust menu allows the setpoint control to inform the tN4 system control whether the heat is hydronic (HYDr) or provided by another (OTHr) heat source.

Exchange Supply

When the setpoint control is connected to a tN4 system control and Heat Source item is set to hydronic (HYDr), the setpoint control requests that the Exchange Supply Occupied water temperature be maintained on the tN4 bus whenever Relay 1 is heating the load.

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Relay 1 System Pump

In order to accommodate many different piping and pumping configurations, the setpoint control is able to choose whether a “system” pump is required to operate at the same time as Relay 1. This allows each manifold on a water temperature to have a “system” pump when using zone valves or when using zone pumps together with primary secondary piping. Only the manifold that has zones requiring heat should have their “system” pump turned on.

When the setpoint control is connected to the tN4 boiler bus, the “system” pump is the primary pump located on the tN4 system control.

When the setpoint control is connected to a tN4 mix bus, the “system” pump is the mix system pump located on the tN4 system control or on a mixing expansion module.

To turn on the “system” pump together with Relay 1, set the Relay 1 Pump item in the Adjust menu to On. This is the factory default.

To turn on Relay 1 without the “system” pump, set the Relay 1 Pump item in the

tN4 System Control

Boiler

Zone Manager

tN4 Mix Bus

Zone Group Pump

Mix System

Pump

Setpoint Control

Adjust menu to Off.

Purging

When the setpoint control is used with a tN4 system control, the setpoint control purges heat from the boiler into the setpoint zone if it is the last zone to shut off. The length of the purge is dependent on time, the temperature of the boiler, and the temperature of the setpoint load.

Priority

When the setpoint control is connected to a boiler tN4 bus, a priority setting is available. When priority is set to On, the setpoint control has priority over the thermostats. First, all heating thermostats are shut off. If there is sufficient boiler capacity, boiler temperature zones are turned on in order of their tN4 address from 1 to 24. Second, boiler temperature second stage heating zones are turned on in order of their tN4 address from 1 to 24. Last, all mixing outputs are increased up to normal operating levels.

tN4 Address

When connected to other tN4 devices through a tN4 bus, the setpoint control is automatically assigned a network address. The Address item in the Miscellaneous menu displays the current address of the setpoint control. A total of 24 devices can be connected to each tN4 bus.

If the 161 is operating as a member of a thermostat / setpoint only network, the address consists of a device number with no bus number. If the 161 is not connected to a tN4 network, the address item in the MISC menu is not available.

Page 27

When the setpoint control is connected to a tN4 boiler bus, the address range is

•

b:01 through to b:24. When the setpoint control is connected to the tN4 mix 1 bus, the address range is

1:01 through to 1:24. When the setpoint control is connected to the tN4 mix 2 bus, the address range is

2:01 through to 2:24. When the setpoint control is connected to the tN4 mix 3 bus, the address range is

3:01 through to 3:24. The address number determines the heating priority for each zone. A device with

address number 1 has a higher priority than address number 24. The tN4 address allows the tN4 system control to shut off low priority zones when the heat source is unable to heat all zones simultaneously. In some cases, the installer may want to change the device’s address in order to change the thermostat’s priority relative to other devices.

Note: Keep track of manually set tN4 addresses. When a tN4 address is manually set, tN4 devices using the Auto address setting will automatically be assigned new addresses. If two devices are manually set to the same address, an error message will appear. The error remains until one of the addresses is manually changed to a vacant address.

Zone Test

The tN4 system control has a Zone Test feature, which allows each tN4 device to be individually operated for up to 5 minutes. When the setpoint control is selected, the display shows “Zn TEST” and Relay 1 is turned on. When the setpoint control is not selected, the display shows “Zn TEST” and Relay 1 is turned off.

Maximum Heat

The tN4 system control has a Maximum Heat feature, which operates all tN4 devices, including the setpoint control, at the occupied temperature setting plus 5°F (3°C). While in the maximum heat operation, the setpoint control display shows the “MAX HEAT” symbols.

Exercising

When connected to a tN4 system control, the setpoint control exercises Relay 1 for 10 seconds after 3 days of inactivity. Exercising helps prevent pump seizure. While the setpoint control is exercising, the display shows “TEST”.

Exercising does not occur when:

• Mode of Operation is set to Off.

• Heat Source is set to Other.

• DIP switch 2 is set to None.

Page 28

Error Messages

Local Errors and Device Errors

Error messages are used to indicate a problem somewhere in the system. There are two types of error messages: Local Errors and Device Errors.

A Local Error indicates an error specific to a device. For example, a thermostat with a sensor short circuit will show a Sensor Short Error on its display. No other devices will show this specific error (unless they also have a sensor short circuit).

A Device Error is used to indicate that there is a local error somewhere else on the system. For example, if a thermostat has a sensor short circuit, that thermostat will show a Local Error indicating specifically what the problem is. All other devices on the network will show Device Errors, indicating the address of the device with the Local Error. In other words, Device Errors are nothing more than pointers, showing you that there is a local error somewhere on the system and where to find it.

Error Priority

Only one error can be shown on a particular device at a time. If there is more than one error on the system, the highest priority error will be the one that is shown. The table on pages 30 to 33 lists error messages in order of high priority to low priority.

How to Locate an Error Message

If the warning symbol (flashing circle with exclamation mark) is visible on screen, this indicates that there is an error somewhere on the system. To view the error message, you must first put the control into the Advanced or Installer access level (available in MISC menu). When an error message is present, it is available as an item in the VIEW menu.

While in the View Menu, press the item button until the error message is displayed. You may have to advance through several View Menu items before the message is displayed.

Page 29

If the error message is a Device Error (if “DEV” or “DEV ERR” is shown on screen), read the address shown and go to the device with that address. That device will have a Local Error indicating specifically what the problem is. When the problem is corrected, the error message will automatically clear.

Access Levels

In some cases, it is not desirable to let day-to-day users view error messages. In these cases, by lowering the access level of the thermostat or setpoint device to ‘User’ or lower, error messages cannot be seen in the View menu and the warning symbol only appears if there is a local error or a device error caused by a critical error on another device. If there is an error message on the system that you cannot find on a particular thermostat, make sure that the access level on that thermostat is set to Installer or Advanced.

Sensor Temperature Errors

If a control is unable to display a temperature due to a sensor malfunction or communication problem, the word “Err” is displayed in place of the temperature. This usually indicates that there is an error somewhere on the system but is not the actual error message. Keep looking through the View menu to find the actual error message.

Device is attempting to show floor temperature but cannot because of

Keep pressing the Item button to find the actual

error message

sensor problem.

Once error is corrected, the temperature can be

displayed

Page 30

ADJUST ERROR

The setpoint control failed to read the ADJUST menu settings from memory and has reloaded the

factory default settings. Operation stops until the ADJUST menu settings are checked.

Note: To clear the error, the access level must be set to Advanced before checking all settings in

the ADJUST menu.

SCENE ERROR

The setpoint control failed to read the SCENE menu settings from memory and has reloaded the

factory default settings. The setpoint control continues to operate while displaying this error.

Note: To clear the error, the access level must be set to Advanced before checking all settings in

Error Message Description

Error Messages (1 of 4)

Note: Error Messages are only visible while in the Advanced or Installer access level.

the SCENE menu.

SCHEDULE ERROR

The setpoint control failed to read the SCHEDULE menu settings from memory and has reloaded

the factory default settings. The setpoint control continues to operate while displaying this error.

Note: To clear the error, the access level must be set to Advanced before checking all settings in

the SCHEDULE menu.

MISCELLANEOUS ERROR

The setpoint control failed to read the MISCELLANEOUS menu settings from memory and has

reloaded the factory default settings. The setpoint control continues to operate while displaying

this error.

Note: To clear the error, the access level must be set to Advanced before checking all settings in

the MISCELLANEOUS menu.

Page 31

and set Dip 2 to the ‘None’ position. This will

BUS ERROR

Due to an open or short circuit, communication is lost with the tN4 bus. Check the wires for damage

or loose connections. Check the wires for continuity. The error message will clear once the error

condition has been corrected.

Error Message Description

Error Messages (2 of 4)

Note: Error Messages are only visible while in the Advanced or Installer access level.

also clear the bus error message.

Note: In some cases, the setpoint control is intentionally removed from the tN4 system. Press the

Up and Down buttons together to clear the address

NO tN4 SYSTEM CONTROL

DIP switch 2 is set to tN4 System Control and the setpoint control does not detect the tN4 System

Control. Once the tN4 System Control is detected, this error will clear automatically.

Note: If a tN4 System Control is not installed, set the tN4 System Control DIP switch 2 to None.

ADDRESS ERROR

Two tN4 devices have been manually set to the same address. The setpoint control continues to

operate with this error but does not communicate with the tN4 bus. To clear this error, manually

select an unused address. This can be done automatically by setting the Address item to Auto.

DEVICE LIMIT

There are more than 24 devices on the tN4 bus. The additional devices must be removed and

reconnected to a different tN4 bus if possible.

Page 32

DIP SWITCH 2 MODE

The tN4 System Control DIP switch 2 is set to None and the setpoint control has detected a tN4

System Control. The setpoint control does not operate until this error is corrected. The tN4 System

Control DIP switch 2 must be set to tN4 System Control.

SETPOINT SENSOR SHORT CIRCUIT

Due to a short circuit, the setpoint control failed to read the sensor input. The setpoint control displays

the error and stops operation until the error message is cleared. Check the wire for short circuits.

Locate and repair the problem as described in the Data Brochure D 070. The error message clears

automatically once the error is corrected.

Error Message Description

Error Messages (3 of 4)

Note: Error Messages are only visible while in the Advanced or Installer access level.

SETPOINT SENSOR OPEN CIRCUIT

Due to an open circuit, the setpoint control failed to read the sensor input. The setpoint control

displays the error and stops operation until the error message is cleared. Check for loose or broken

wires. Locate and repair the problem as described in the Data Brochure D 070. The error message

clears automatically once the error is corrected.

SCHEDULE MEMBER ERROR

The setpoint control can no longer detect its schedule master. Ensure that the Schedule Master

number has not been changed. Check the communication connections for open or short circuits.

Once the schedule master has been detected, the error message clears.

Page 33

DEVICE ERROR AT ADDRESS #:##

#:## is the address of the device with the error. The bus number displays before the colon, and

the device number displays after. Go to the device with the address displayed.

Possible Addresses:

01 to 24 - Device Error on Thermostat only network

b:01 to b:24 - Device Error on Boiler Bus

1:01 to 1:24 - Device Error on Bus 1

2:01 to 2:24 - Device Error on Bus 2

3:01 to 3:24 - Device Error on Bus 3

CTRL - Device Error on System Control

MIX1 - Device Error on Mixing Expansion Module (See System Control for local error)

MIX2 - Device Error on Mixing Expansion Module (See System Control for local error)

MIX3 - Device Error on Mixing Expansion Module (See System Control for local error)

Error Message Description

Error Messages (4 of 4)

Note: Error Messages are only visible while in the Advanced or Installer access level.

Page 34

Cleaning the Control

The control’s exterior can be cleaned using a damp cloth. Moisten the cloth with water and wring out prior to wiping the control. Do not use solvents or cleaning solutions.

Page 35

Notes

Page 36

Limited Warranty and Product Return Procedure

Limited Warranty The liability of tekmar under this warranty is limited. The Purchaser, by

taking receipt of any tekmar product (“Product”), acknowledges the terms of the Limited Warranty in effect at the time of such Product sale and acknowledges that it has read and understands same.

The tekmar Limited Warranty to the Purchaser on the Products sold hereunder is a manufacturer’s pass-through warranty which the Purchaser is authorized to pass through to its customers. Under the Limited Warranty, each tekmar Product is warranted against defects in workmanship and materials if the Product is installed and used in compliance with tekmar’s instructions, ordinary wear and tear excepted. The pass-through warranty period is for a period of twenty-four (24) months from the production date if the Product is not installed during that period, or twelve (12) months from the documented date of installation if installed within twenty-four (24) months from the production date.

The liability of tekmar under the Limited Warranty shall be limited to, at tekmar’s sole discretion: the cost of parts and labor provided by tekmar to repair defects in materials and / or workmanship of the defective product; or to the exchange of the defective product for a warranty replacement product; or to the granting of credit limited to the original cost of the defective product, and such repair, exchange or credit shall be the sole remedy available from tekmar, and, without limiting the foregoing in any way, tekmar is not responsible, in contract, tort or strict product liability, for any other losses, costs, expenses, inconveniences, or damages, whether direct, indirect, special, secondary, incidental or consequential, arising from ownership or use of the product, or from defects in workmanship or materials, including any liability for fundamental breach of contract.

The pass-through Limited Warranty applies only to those defective Products returned to tekmar during the warranty period. This Limited Warranty does not cover the cost of the parts or labor to remove or transport the defective Product, or to reinstall the repaired or replacement Product, all such costs and expenses being subject to Purchaser’s agreement and warranty with its customers.

Any representations or warranties about the Products made by Purchaser to its customers which are different from or in excess of the tekmar Limited Warranty are the Purchaser’s sole responsibility and obligation. Purchaser shall indemnify and hold tekmar harmless from and against any and all claims, liabilities and damages of any kind or nature which arise out of or are related to any such representations or warranties by Purchaser to its customers.

The pass-through Limited Warranty does not apply if the returned Product has been damaged by negligence by persons other than tekmar, accident, fire, Act of God, abuse or misuse; or has been damaged by modifications, alterations or attachments made subsequent to purchase which have not been authorized by tekmar; or if the Product was not installed in compliance with tekmar’s instructions and / or the local codes and ordinances; or if due to defective installation of the Product; or if the Product was not used in compliance with tekmar’s instructions.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, WHICH THE GOVERNING LAW ALLOWS PARTIES TO CONTRACTUALLY EXCLUDE, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DURABILITY OR DESCRIPTION OF THE PRODUCT, ITS NON-INFRINGEMENT OF ANY RELEVANT PATENTS OR TRADEMARKS, AND ITS COMPLIANCE WITH OR NON-VIOLATION OF ANY APPLICABLE ENVIRONMENTAL, HEALTH OR SAFETY LEGISLATION; THE TERM OF ANY OTHER WARRANTY NOT HEREBY CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT SHALL NOT EXTEND BEYOND TWENTY-FOUR (24) MONTHS FROM THE PRODUCTION DATE, TO THE EXTENT THAT SUCH LIMITATION IS ALLOWED BY THE GOVERNING LAW.

Product Warranty Return Procedure All Products that are believed to have defects in workmanship or materials must be returned, together with a written description of the defect, to the tekmar Representative assigned to the territory in which such Product is located. If tekmar receives an inquiry from someone other than a tekmar Representative, including an inquiry from Purchaser (if not a tekmar Representative) or Purchaser’s customers, regarding a potential warranty claim, tekmar’s sole obligation shall be to provide the address and other contact information regarding the appropriate Representative.

tekmar Control Systems Ltd., Canada tekmar Control Systems, Inc., U.S.A.

Head Office: 5100 Silver Star Road Vernon, B.C. Canada V1B 3K4 (250) 545-7749 Fax. (250) 545-0650 Web Site: www.tekmarcontrols.com

All specifications are subject to change without notice

36 of 36 D 161 - 08/07.

tekmar 161 Installation

Specifications and Main Features

Frequently Asked Questions

User Manual