tekmar 541 User Manual

- Data Brochure

D541

tekmarNet®4 Thermostat 541

08/07

1

Information

2

Application

3

Rough In

4

Wiring

5

Data

6

Job

Brochure

Brochure

Wiring

Brochure

Brochure

Record

Choose controls

Design your

Rough-in

Wiring and

Control settings

Record settings &

to match

mechanical

wiring

installation of

and sequence of

wiring details for

application

applications

instructions

specific control

operation

future reference

Introduction

The tekmarNet®4 thermostat 541 operates one stage of heating equipment. The 541 can operate as a stand alone device, or communicate with a group of tekmarNet®4 thermostats.

Features

•	tN4 Compatible				•	Pulse Width Modulation
•	1 Auxiliary Temperature Sensor Input				•	Scenes

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Table of Contents

Table of Contents............................................................	2	Cycles Per Hour ...................................................	13
Display and DIP Switches ..............................................	2	Heating Terminal Units .........................................	13
Dip Switches ...........................................................	2	Heating Operation ................................................	14
Access Levels .........................................................	3	Cool Groups .........................................................	15
Display and Symbols Description............................	3	Setting the Schedule .............................................	15
User Interface .........................................................	4	Optimum Start / Stop ...........................................	15
Setup ..............................................................................	5	Scenes .................................................................	16
View Menu .............................................................	5	Away Hold ............................................................	17
Adjust Menu ............................................................	6	Offset ...................................................................	17
Scene Menu............................................................	8	Units of Temperature ............................................	17
Schedule Menu .......................................................	9	Backlight ..............................................................	17
Miscellaneous Menu ..............................................	9	tN4 Address .........................................................	17
Thermostat Operation ..................................................	11	Pump Exercising ...................................................	17
Auxiliary Sensors .................................................	11	Error Messages ............................................................	18
Mode of Operation ...............................................	11	Cleaning the Thermostat .............................................	24
Adjusting the Temperature ...................................	12	Warranty .......................................................................	24

Display and DIP Switches

Dip Switches

tN4 System Control (DIP Switch #2)

A tN4 System Control is a control, not a thermostat, that the 541 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 541.

•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 541. Set the tN4 System Control’s Lock / Unlock DIP switch to the Unlock position before Access Levels can be changed on the thermostat.

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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 541 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

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 541, 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.

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

Symbols Description

						MODE OF OPERATION	OPTIMUM START / STOP
						Displays whether the device is in heating	The Optimum Start or Optimum Stop
						mode.	feature is active.
						FIRST STAGE HEAT	WARNING
						First stage heating is operating.	An error is present.
						tN4 COMMUNICATION	TEMPORARY HOLD
							The temperature has been temporarily
						A tN4 network is detected.
							adjusted from the scheduled event.
						LOCK	SCHEDULED EVENT
						The Access Levels are locked. A menu
							Displays the current scheduled event.
						option is visible but not adjustable.

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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 541.

Menu

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

Five menus are available:

•	View	•	Schedule
•	Adjust	•	Miscellaneous
•	Scene

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 10.

Continue to next Item

Continue to next Item

Continue to next Menu

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Display Menus

View Menu (1 of 1)

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

VIEW MENU

					Item Field			Range	Access	Description
									SEC	ROOM	SECTION A
								-58 to 212°F	LTD	Current air temperature in the room.
									USER	Note: This item is only available when the Room
								(-50.0 to 100.0°C)
									INST
										Sensor is set to On or the Auxiliary Sensor is set to
									ADV	Room.
									USER	ROOM SET	SECTION A
								– – –, 40 to 95°F		Selected room temperature.
									INST	Note: This item is only available when the Room
								(– – –, 4.5 to 35.0°C)
									ADV
										Sensor is set to On or the Auxiliary Sensor is set to
										Room.
								– – – (if no recent	SEC	OUTDOOR	SECTION A
									LTD
										Current temperature at the outdoor sensor.
								message),
									USER
								-58 to 212°F		Note: This item is only available when an outdoor
									INST
								(-50.0 to 100.0°C)
										sensor is connected to the tN4 network.
									ADV
									SEC	FLOOR	SECTION A
									LTD
								-58 to 212°F		Current floor temperature.
									USER
								(-50.0 to 100.0°C)		Note: This item is only available when the Auxiliary
									INST
										Sensor is set to Floor.
									ADV
										SUPPLY TEMPERATURE OF TN4 BUS	SECTION F
									INST	Actual water temperature of the tN4 bus for the first
								-22 to 266°F		stage of heat.
								(-30.0 to 130.0°C)	ADV	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.

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

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Adjust Menu (1 of 2)

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

ADJUST MENU

			Item Field	Range	Access	Description
				OFF, HEAT,	USER	MODE OF OPERATION	SECTION B
					INST
				Default = HEAT		Mode of operation of the thermostat.
					ADV

								40 to 95°F
								(4.5 to 35.0°C)
									LTD	SET HEAT	SECTION C
										Selected air heating temperature for each event.
						Wake	Default = 70°F (21.0°C)		USER
										Note: At the Limited Access Level, you can only
									INST
						UnOccupied
							Default = 62°F (16.5°C)			adjust the temperature +/-3°F (1.5°C) from the last
									ADV
										setting.
						Occupied	Default = 70°F (21.0°C)
						Sleep	Default = 62°F (16.5°C)
						Away	Default = 62°F (16.5°C)
								OFF, 40 to 122°F		FLOOR MINIMUM	SECTION A
								(OFF, 4.5 to 50.0°C)
									LTD	Select the minimum floor temperature for each
										event.
									USER
						Wake		Default = 70°F (21.0°C)		Note: This item is only available when the Auxiliary
									INST
									ADV	Sensor is set to Floor. At the Limited Access Level,
						UnOccupied		Default = OFF
										you can only adjust the temperature +/-3°F (1.5°C)
										from the last setting.
						Occupied		Default = 70°F (21.0°C)
						Sleep		Default = OFF
								40 to 122°F		FLOOR MAXIMUM	SECTION A
								(4.5 to 50.0°C)	ADV	Maximum floor temperature.
								Default = 85°F		Note: This item is only available when Sensor 1 is
								(29.5°C)		set to Floor.
								OFF, ROOM,		SENSOR	SECTION A
								FLOR (Floor),	INST
										Select the type of sensor connected to the auxiliary
								OUT (Outdoor)	ADV
										sensor input.
								Default = OFF
		Continued on next page.

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Adjust Menu (2 of 2)

ADJUST MENU

			Item Field				Range	Access	Description
							OFF, ON	INST	ROOM SENSOR	SECTION A
							Default = ON	ADV	Selects whether the built-in room sensor is functional.
									HEAT CYCLES PER HOUR	SECTION D
							SYNC, AUTO		Select the number of heating cycles per hour. SYNC
									results in 5 CPH. All tN4 thermostats that are connected
							2 to 12	ADV	and have the SYNC setting selected synchronize their
							Default = AUTO		cycle to the same starting time.
									Note: This item is only available when the tN4 System
									Control DIP switch is set to None.
							CTRL, HRF1, HRF2,		HEAT 1 TERMINAL	SECTION E
							COIL, CONV, RAD,	INST	Select the type of heating terminal.
							BASE, OTHR	ADV	Note: If CTRL is selected, the terminal unit selected
							Default =CTRL
									on the tN4 System Control is used.
									HEAT 1 PUMP	SECTION F
									Select whether the system, primary, or mixing pump
							OFF, ON	INST	on a tN4 System Control must operate while the heat
									is operating.
							Default = ON	ADV
									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
							OFF, ON	INST	on a tN4 System Control is delayed to allow a thermal
									motor zone valve to open. Select On for thermal motor,
							Default = OFF	ADV	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
							NONE, 1 to 16		Select the cool group of which this thermostat is a
								ADV	member. Select None if this thermostat is not a cool
							Default = NONE		group member.
									Note: This item is only available when the thermostat
									is connected to a tN4 network.
									OPTIMUM START / STOP	SECTION I
							ON, OFF	INST	Select whether to use Optimum Start / Stop for
									heating.
							Default = ON	ADV
									Note: This item is only available when a heating
									schedule is selected.

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

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Scene Menu (1 of 1)

SCENE MENU

The Scene Menu items set the current scene as well as the scene settings.

		Item Field		Range	Access	Description
				Occ, Away,
				PERM1, Away 2	USER	SELECT	SECTION J
				PERM UnOcc 3,		Select the scene for the building.
				PERM 4, PERM 5	INST
						Note: Only Occ and AWAY are available when no
				TMPY Occ 6	ADV
				TMPY 7, TMPY 8		schedule is selected.
				Default = PERM 1
				Schd
				Wake		SET PERMANENT 1	SECTION J
				Occ	INST
						Select an action for the Permanent 1 scene.
				UnOcc
					ADV	Note: This item is only available when SCENE menu
				Sleep
				Away		is set to ON and a schedule has been selected.
				Default = SCHD
				Schd
				Wake		SET PERMANENT 4	SECTION J
				Occ
					INST	Select an action for the Permanent 4 scene.
				UnOcc
					ADV
				Sleep		Note: This item is only available when SCENE menu
				Away		is set to ON and a schedule has been selected.
				Default = SCHD
				Schd
				Wake		SET PERMANENT 5	SECTION J
				Occ
					INST	Select an action for the Permanent 5 scene.
				UnOcc
					ADV
				Sleep		Note: This item is only available when SCENE menu
				Away		is set to ON and a schedule has been selected.
				Default = SCHD
				Schd		SET TEMPORARY 7	SECTION J
				Wake
						Select an action for the Temporary 7 scene. The
				Occ	INST
				UnOcc		scene lasts for 4 hours before reverting to the previous
				Sleep	ADV	permanent scene.
				Away		Note: This item is only available when SCENE menu
				Default = SCHD		is set to ON and a schedule has been selected.
				Schd		SET TEMPORARY 8	SECTION J
				Wake
						Select an action for the Temporary 8 scene. The
				Occ	INST
				UnOcc		scene lasts for 8 hours before reverting to the previous
				Sleep	ADV	permanent scene.
				Away		Note: This item is only available when SCENE menu
				Default = SCHD		is set to ON and a schedule has been selected.
				OFF, ON	INST	SCENE MENU	SECTION J
				Default = OFF	ADV	Select the Scene feature of the thermostat.

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

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