tekmar 542 Installation

- Data Brochure

•

tekmarNet®4 Thermostat 542

D 542

08/07

Information

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application

Application

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applications

Rough In

Rough-in

instructions

Wiring

wiring

Wiring

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Wiring and

installation of

specific control

Data

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Control settings

and sequence of

operation

Job

Record

Record settings &

wiring details for

future reference

Introduction

The tekmarNet®4 thermostat 542 operates one stage of heating equipment. The 542 can operate as a stand alone device, or communicate with a group of tekmarNet®4 thermostats.

Features

• tN4 Compatible

• 2 Auxiliary Temperature Sensor Input

• Pulse Width Modulation

• Programmable Setback Scheduling

• Scenes

Table of Contents

•

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

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

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

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

Display and Symbols Description............................3

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

Setup ..............................................................................5

View Menu .............................................................5

Adjust Menu ............................................................6

Time Menu ..............................................................9

Scene Menu ..........................................................10

Schedule Menu ..................................................... 11

Miscellaneous Menu ............................................ 14

Thermostat Operation ..................................................16

Auxiliary Sensors ................................................. 16

Mode of Operation ............................................... 16

Adjusting the Temperature ................................... 17

Cycles Per Hour ................................................... 18

Heating Terminal Units .........................................18

Heating Operation ................................................19

Cool Groups .........................................................20

Time Clock ............................................................20

Setting the Schedule .............................................20

Optimum Start / Stop ...........................................21

Scenes .................................................................22

Away Hold ............................................................23

Offset ...................................................................23

Units of Temperature ............................................23

Backlight ..............................................................23

tN4 Address .........................................................24

Pump Exercising ................................................... 24

Error Messages ............................................................25

Cleaning the Thermostat .............................................28

Warranty .......................................................................28

Display and DIP Switches

Dip Switches

tN4 System Control (DIP Switch #2)

A tN4 System Control is a control, not a thermostat, that the 542 thermostat connects to through the tN4 bus. All tN4 compatible Outdoor Reset Modules are tN4 System Controls.

• If the thermostat is connected to a tN4 System Control, set the tN4 System Control DIP switch to tN4 System Control (down position).

• If the thermostat is not connected to a tN4 System Control, set the tN4 System Control DIP switch to None

(up position).

Lock / Unlock (DIP Switch #1)

Use the Lock / Unlock DIP switch to lock or unlock the Access Level of the 542.

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

• To lock the Access Level, set the DIP switch to the locked (up) 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 542. Set the tN4 System Control’s Lock / Unlock DIP switch to the Unlock position before Access Levels can be changed on the thermostat.

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 thermostat on a regular basis.

The 542 has five Access Levels:

• Advanced (ADV): access to all settings

• Installer (INST): settings required for installation

• User (USER): for property owners

• Limited (LTD): limited temperature adjustment

• Secure (SEC): for commercial and public installations

Display

Menu Field

Displays the

current menu

For more information, see the Misc (Miscellaneous) 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 542, 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 menu item.

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

Access Level.

Item Field

Displays an abbreviated name of the selected item

Status Field

Displays the current status

of the control’s inputs, outputs and operation

Symbols Description

MODE OF OPERATION

Displays whether the device is in heating or off mode.

FIRST STAGE HEAT

First stage heating is operating.

SCHEDULE MASTER

Indicates that this thermostat is a schedule master.

tN4 COMMUNICATION

A tN4 network is detected.

Number Field

Displays the current value of the selected item

OPTIMUM START / STOP

The Optimum Start or Optimum Stop feature is active.

WARNING

An error is present.

TEMPORARY HOLD

The temperature has been temporarily adjusted from the scheduled event.

SCHEDULED EVENT

Displays the current scheduled event.

LOCK

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

User Interface

•

Use the User Interface available on the Liquid Crystal Display (LCD) to setup and monitor the operation of the thermostat. Use the four push buttons below the LCD (Menu, Item, Up, Down) to select settings. As you enter settings, record the settings in the Job Record J 542.

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

Six menus are available:

• View

• Adjust

• Time

• Scene

• Schedule

• 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.

Default Item

• To set the default item in the View Menu, display the

item for more than five seconds.

After navigating menus, the display reverts back to the default item after 60 seconds of button inactivity.

Copy Settings

To save time in setting thermostats, you can copy the settings from one tN4 thermostat to a second tN4 thermostat.

Refer to the COPY item in the Misc menu on page 15.

Continue to next Menu

Continue to next Item

Display Menus

View Menu (1 of 2)

The View menu items display the current operating temperatures and status information of the system.

Item Field Range

VIEW MENU

-58 to 212°F

(-50.0 to 100.0°C)

– – –, 40 to 95°F

(– – –, 4.5 to 35.0°C)

– – – (if no recent

message),

-58 to 212°F

(-50.0 to 100.0°C)

-76 to 149°F

(-60.0 to 65.0°C)

-76 to 149°F

(-60.0 to 65.0°C)

Access

SEC

LTD

USER

INST

ADV

USER

INST

ADV

SEC

LTD

USER

INST

ADV

USER

INST

ADV

USER

INST

ADV

Description

ROOM SECTION A

Current air temperature in the room. Note: This item is only available when the Room Sensor

is set to On or Sensor 1 or 2 is set to Room.

ROOM SET SECTION A

Selected room temperature. Note: This item is only available when the Room Sensor

is set to On or Sensor 1 or 2 is set to Room.

OUTDOOR SECTION A

Current temperature at the outdoor sensor. Note: This item is only available when an outdoor

sensor is connected to the tN4 network.

OUTDOOR HIGH SECTION A

Records the highest outdoor temperature. Press Up and Down buttons to clear.

Note: This item is only available when an outdoor sensor is connected to the tN4 network.

OUTDOOR LOW SECTION A

Records the lowest outdoor temperature. Press Up and Down buttons to clear.

Note: This item is only available when an outdoor sensor is connected to the tN4 network.

SEC

-58 to 212°F

(-50.0 to 100.0°C)

-58 to 212°F

(-50.0 to 100.0°C)

Continued on next page.

LTD

USER

INST

ADV

USER

INST

ADV

FLOOR SECTION A

Current floor temperature. Note: This item is only available when Sensor 1 or

2 is set to Floor.

REMOTE SENSOR SECTION A

Current temperature at the remote sensor location. Note: This item is only available when Sensor 1 is

set to Remote.

View Menu (2 of 2)

Item Field Range

-22 to 266°F

(-30.0 to 130.0°C)

Access

INST

ADV

VIEW MENU

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

Adjust Menu (1 of 3)

Description

SUPPLY TEMPERATURE OF TN4 BUS

Actual water temperature of the tN4 bus for the first stage of heat.

Note: This item is only available when the thermostat is connected to an Outdoor Reset Module and the DIP switch is set to tN4 System Control.

SECTION F

Item Field Range Access Description

Wake

ADJUST MENU

UnOccupied

Occupied

OFF, HEAT,

Default = HEAT

40 to 95°F

(4.5 to 35.0°C)

Default = 70°F (21.0°C)

Default = 62°F (16.5°C)

Default = 70°F (21.0°C)

USER

INST

ADV

LTD

USER

INST

ADV

The Adjust Menu items are the programmable settings used to operate the mechanical equipment.

MODE OF OPERATION SECTION B Mode of operation of the thermostat.

SET HEAT SECTION C Selected air heating temperature for each event. Note: At the Limited Access Level, you can only

adjust the temperature +/-3°F (1.5°C) from the last setting.

Away is only available when Scenes are turned on.

Sleep

Away

Continued on next page.

Default = 62°F (16.5°C)

Adjust Menu (2 of 3)

Item Field Range Access Description

Wake

UnOccupied

Occupied

Sleep

OFF, 40 to 122°F

(OFF, 4.5 to 50.0°C)

Default = 70°F (21.0°C)

Default = OFF

Default = 70°F (21.0°C)

Default = OFF

40 to 122°F

(4.5 to 50.0°C) Default = 85°F

(29.5°C)

OFF, ROOM,

FLOR (Floor),

REM (Remote)

Default = OFF

LTD

USER

INST ADV

ADV

INST ADV

FLOOR MINIMUM

Select the minimum floor temperature for each event.

Note: This item is only available when Sensor 1 or 2 is set to Floor. At the Limited Access Level, you can only adjust the temperature +/-3°F (1.5°C) from the last setting.

FLOOR MAXIMUM

Maximum floor temperature. Note: This item is only available when Sensor 1 or

2 is set to Floor.

SENSOR 1 SECTION A

Select the type of sensor connected to the auxiliary sensor input 1.

SECTION A

ADJUST MENU

OFF, ROOM,

FLOR (Floor),

OUT (Outdoor)

Default = OFF

OFF, ON

Default = ON

SYNC, AUTO

2 to 12

Default = AUTO

CTRL, HRF1, HRF2,

COIL, CONV, RAD,

BASE, OTHR

Default =CTRL

INST ADV

ADV

INST ADV

SENSOR 2 SECTION A

Select the type of sensor connected to auxiliary sensor input 2.

ROOM SENSOR SECTION A Selects whether the built-in room sensor is functional.

HEAT CYCLES PER HOUR

Select the number of heating cycles per hour. SYNC results in 5 CPH. All tN4 thermostats that are connected and have the SYNC setting selected synchronize their cycle to the same starting time.

Note: This item is only available when the tN4 System Control DIP switch is set to None.

HEAT 1 TERMINAL SECTION E

Select the type of heating terminal. Note: If CTRL is selected, the terminal unit selected

on the tN4 System Control is used.

SECTION D

Continued on next page.

Adjust Menu (3 of 3)

Item Field Range Access Description

ADJUST MENU

OFF, ON

Default = ON

OFF, ON

Default = OFF

NONE, 1 to 16

Default = NONE

NONE, ZONE, CTRL

Default = CTRL

40 to 100°F, OFF

(4.5 to 38.0°C, OFF)

Default = 72°F

(22.0°C)

INST

ADV

INST

ADV

INST

ADV

HEAT 1 PUMP

Select whether the system, primary, or mixing pump on a tN4 System Control must operate while the heat is operating.

Note: This item is only available when the H1 Terminal item is set to CTRL, HRF1, HRF2, Fan Coil, Convector, Radiator, or Baseboard.

HEAT 1 DELAY SECTION F

Select whether the system, primary, or mixing pump on a tN4 System Control is delayed to allow a thermal motor zone valve to open. Select On for thermal motor, select Off for zone pump or motorized zone valve.

Note: This item is only available when the H1 Terminal item is set to CTRL, HRF1, HRF2, Fan Coil, Convector, Radiator, or Baseboard.

COOL MEMBER SECTION G

Select the cool group of which this thermostat is a member. Select None if this thermostat is not a cool group member.

Note: This item is only available when the thermostat is connected to a tN4 network.

WARM WEATHER SHUT DOWN SECTION N Set the outdoor temperature at which warm weather

shutdown occurs. Select whether the thermostat follows the tN4 System Control’s or the zone’s WWSD for scheduled events.

WWSD OCCUPIED AND WAKE SECTION N

Set the Warm Weather Shut Down (WWSD) temperature during Occupied and Wake events.

Note: This item is only available when WWSD is set to Zone.

SECTION F

40 to 100°F, OFF

(4.5 to 38.0°C, OFF)

Default = 60°F

(15.5°C)

ON, OFF

Default = ON

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

INST

ADV

INST

ADV

WWSD UNOCCUPIED AND SLEEP SECTION N

Set the Warm Weather Shut Down temperature during Unoccupied and Sleep events.

Note: This item is only available when WWSD is set to Zone.

OPTIMUM START / STOP SECTION J

Select whether to use Optimum Start / Stop for heating.

Note: This item is only available when a heating schedule is selected.

Time Menu (1 of 1)

The Time menu items set the time clock, day and date.

Item Field Range

TIME MENU

SUNDAY, MONDAY,

TUESDAY,

WEDNESDAY,

THURSDAY, FRIDAY,

SATURDAY

Default = MONDAY

12:00 to :59

Default = :12:00 AM

12:00 AM to 11:59 PM or

00:00 to 23:59

Default = 12:00 AM

SUNDAY ...

WEDNESDAY ...

SATURDAY

Default = SUNDAY

Access

USER

INST ADV

USER

INST ADV

USER

INST ADV

USER

INST ADV

Description

CURRENT TIME AND DAY SECTION H

Displays the current time and day of the week. The time and date flash if the time is not set.

CLOCK MINUTES

Set the minutes.

CLOCK HOURS SECTION H Set the hours.

DAY OF THE WEEK SECTION H Set the day of the week.

SECTION H

12 hr to 24 hr

Default = 12

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

ADV

MODE SECTION H Select whether time should be displayed using a 12

or a 24 hour clock.

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