tekmar 545 Installation

- Data Brochure

•

tekmarNet®4 Thermostat 545

D 545

07/08

Information

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Application

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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 545 operates two stages of heating equipment, one stage of cooling equipment, and one fan. The fan operation includes logic to operate ventilation. The 545 can operate as a stand alone device, or communicate with a group of tekmarNet®4 thermostats.

Features

• tN4 Compatible

• Automatic Heat / Cool Switchover

• 2 Auxiliary Temperature Sensor Inputs

• Pulse Width Modulation

• Programmable Setback and Setup Scheduling

• Scenes

• Cooling Group

• Radiant Base Load

Y1 Rc G1 G1

Com

tN4

Rh1 Rh2

tNt 545

Two Stage Heat, One Stage Cool, One Fan

Power: 24 V (ac) ±10% 60 Hz 1.5 VA Relays: 24 V (ac) 2 A

992-02

Meets Class B: Canadian ICES, FCC Part 15

Terminal Functions

Fan 1 Relay

Power Cooling

Cool 1 Relay

Com

Sensor Common

Sensor 2

No Power

Sensor 1

To isolate relay, cut jumper

tN4 C R Rh1 W1 Rh2 W2

DIP Switch Functions

tekmarNet 4 Power Neutral Power 24 V (ac) Heat 1 Relay Heat 1 Relay Heat 2 Relay Heat 2 Relay

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 ............................................................13

Scene Menu .......................................................... 14

Schedule Menu ..................................................... 16

Monitor Menu ........................................................ 19

Test Menu ............................................................21

Miscellaneous Menu ............................................22

Testing .........................................................................23

Thermostat Operation ..................................................24

Auxiliary Sensors .................................................24

Heat or Cool Mode of Operation ..........................25

Adjusting the Temperature ...................................25

Cycles Per Hour ...................................................26

Heating Terminal Units .........................................26

Heating Operation ................................................27

Cooling Operation ................................................29

Cool Groups .........................................................29

Fan Operation ......................................................29

Filter Change .......................................................31

Time Clock ........................................................... 31

Setting the Schedule .............................................31

Optimum Start / Stop ...........................................32

Scenes .................................................................33

Away Hold ............................................................34

Radiant Base Load ..............................................34

Offset ...................................................................35

Warm Weather Shutdown ....................................35

Cold Weather Shutdown ......................................35

Units of Temperature ............................................35

Backlight ..............................................................35

tN4 Address .........................................................35

Pump Exercising ...................................................35

Error Messages ............................................................36

Cleaning the Thermostat ......................................39

Warranty .......................................................................40

Display and DIP Switches

Dip Switches

tN4 System Control (DIP Switch #2)

A tN4 System Control is a control, not a thermostat, that the 545 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 545.

• 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.

Y1 Rc G1 G1

Com

tN4

Rh1 Rh2

Note: The tN4 System Control’s Lock / Unlock DIP switch overrides the Lock / Unlock DIP switch on the 545. 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 545 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

Status Field

Displays the current status

of the control’s inputs, outputs and operation

For more information, see the Misc (Miscellaneous) Menu section.

In the following menu tables, the access level the item is visable 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 545, 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

Number Field

Displays the current value of the selected item

Symbols Description

MODE OF OPERATION

Displays whether the device is in heating or cooling mode.

FIRST STAGE HEAT

First stage heating is operating.

SECOND STAGE HEAT

Second stage heating is operating.

FIRST STAGE COOL

First stage cooling is operating.

FAN

Fan is operating.

FILTER

Replace the filter.

SCHEDULE MASTER

Indicates that this thermostat is a schedule master.

tN4 COMMUNICATION

A tN4 network is detected.

COOL GROUP MASTER

This thermostat is a cool group master.

LOCK

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

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.

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 545.

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

Eight menus are available:

• View

• Adjust

• Time

• Scene

• Schedule

• Monitor

• Test

• 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 22.

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)

-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)

-58 to 212°F

(-50.0 to 100.0°C)

Access

SEC

LTD

USER

INST

ADV

SEC

LTD

USER

INST

ADV

USER

INST

ADV

SEC

LTD

USER

INST

ADV

SEC

LTD

USER

INST

ADV

Description

COOL AVERAGE SECTION H

Average room temperature of the cool group master and members.

Note: This item is only available when Cooling Stage is set to 1 and this thermostat is a cool group master.

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.

FLOOR SECTION A

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

2 is set to Floor.

-58 to 212°F

(-50.0 to 100.0°C)

-58 to 212°F

(-50.0 to 100.0°C)

Continued on next page.

USER

INST

ADV

INST

ADV

REMOTE SENSOR

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

set to Remote.

COIL SENSOR SECTION A

Current temperature at the coil sensor. Note: This item is only available when Sensor 2 is

set to Coil.

SECTION A

View Menu (2 of 2)

Item Field Range

-58 to 212°F

(-50.0 to 100.0°C)

-22 to 266°F

VIEW MENU

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

(-30.0 to 130.0°C)

Access

INST

ADV

INST

ADV

Adjust Menu (1 of 7)

Description

DUCT SENSOR

Current temperature at the duct sensor. Note: This item is only available when Sensor 2 is

set to Duct.

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.

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

SECTION A

SECTION F

Item Field Range Access Description

ADJUST MENU

Wake

UnOccupied

Occupied

YES, NO

Default = NO

OFF, HEAT,

AUTO, COOL

Default = AUTO

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

USER

INST

ADV

LTD

USER

INST

ADV

CLEAR FILTER SECTION J

Indicates when to reset the air filter timer. Note: This item is only available when Filter is set to

ON, the air filter timer has expired and the Fan Mode is set to 1 or 2.

MODE OF OPERATION SECTION B

Mode of operation of the thermostat or cool group.

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 7)

Item Field Range Access Description

Wake

UnOccupied

Occupied

50 to 100°F

(10.0 to 38.0°C)

Default = 78°F (25.5°C)

Default = 85°F (29.5°C)

Default = 78°F (21.0°C)

LTD

USER

INST ADV

SET COOL SECTION C

Select the cooling room 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

Wake

UnOccupied

Occupied

Sleep

ADJUST MENU

Default = 85°F (29.5°C)

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 SECTION F

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 SECTION F

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 auxiliary sensor input 1.

OFF, ROOM,

FLOR (Floor),

OUT (Outdoor),

COIL, DUCT

Default = OFF

OFF, ON

Default = ON

Continued on next page.

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.

Adjust Menu (3 of 7)

Item Field Range Access Description

ADJUST MENU

SYNC, AUTO

2 to 12

Default = AUTO

CTRL, HRF1, HRF2,

COIL, CONV, RAD,

BASE, OTHR ,FURN

Default =CTRL

OFF, ON

Default = ON

OFF, ON

Default = OFF

NONE, CTRL, HRF1,

HRF2, COIL, CONV,

RAD, BASE, OTHR,

FURN

Default =CTRL

ADV

INST

ADV

INST

ADV

INST

ADV

INST

ADV

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

Select the type of heating terminal for first stage heat.

Note: If CTRL is selected, the terminal unit selected on the tN4 System Control is used.

HEAT 1 PUMP SECTION F

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

HEAT 2 TERMINAL SECTION E

Select the type of heating terminal for second stage heat. If NONE is selected, the second stage heat is disabled.

Note: If CTRL is selected, the terminal unit selected on the tN4 System Control is used.

SECTION E

SECTION D

BOIL, MIX1,

MIX2, MIX3

Default = BOIL

OFF, ON

Default = ON

Continued on next page.

ADV

INST

ADV

HEAT 2 SOURCE SECTION F

Select the tN4 bus on which the second stage heat zone operates. This setting determines water temperature and system pump operation.

Note: This item is only available when the H2 Terminal item is set to CTRL, HRF1, HRF2, Fan Coil, Convector, Radiator, or Baseboard.

HEAT 2 PUMP SECTION F

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

Note: This item is only available when the H2 Terminal item is set to CTRL, HRF1, HRF2, Fan Coil, Convector, Radiator, or Baseboard.

Adjust Menu (4 of 7)

Item Field Range Access Description

OFF, ON

Default = OFF

NONE, 1 to 16

Default = NONE

NONE, 1 to 16

Default = NONE

INST

ADV

HEAT 2 DELAY

Select whether the system, primary, or mixing pump on a tN4 System Control is delayed to allow a second stage heat 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 H2 Terminal item is set to CTRL, HRF1, HRF2, Fan Coil, Convector, Radiator, or Baseboard.

COOL MASTER SECTION H

Select the cool group for which this thermostat is the master. Select None if this thermostat is not a cool group master.

Note: This item is only available when the thermostat is connected to a tN4 network and the Cool Stage is set to 1.

COOL MEMBER SECTION H

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, Cool Master is set to NONE and the Cool Stage is set to NONE.

SECTION F

ADJUST MENU

NONE, 1

Default = 1

0:30 to 6:00 min

Default = 2:00

0:30 to 10:00 min

Default = 5:00

AUTO, 2 to 12

Default = AUTO

10 to 180 min

Default = 30

INST

ADV

COOL STAGES SECTION G

Select the number of cooling stages. Select None if cooling is not used.

MINIMUM COOL RUN TIME SECTION G

Select the minimum running time for the cooling equipment.

Note: This item is only available when the Cool Stage is set to 1.

MINIMUM COOL OFF TIME SECTION G

Select the minimum off time for the cooling equipment.

Note: This item is only available when the Cool Stage is set to 1.

COOL CYCLES PER HOUR SECTION D

Select the number of cooling cycles per hour. Note: This item is only available when the Cool Stage

is set to 1.

INTERLOCK SECTION G

Select how long heating must be off before cooling starts.

Note: This item is only available when the Cool Stage is set to 1.

Continued on next page.

Adjust Menu (5 of 7)

Item Field Range Access Description

HEAT, COOL

Default = COOL

NONE, 1, 2

Default = 1

OFF, ON

Default = OFF

OFF, 1 to 60 min

Default = OFF

ADV

INST

ADV

PRIORITY HEATING OR COOLING

Select whether heating has priority or cooling has priority.

Note: This item is only available when the Cool Stage is set to 1.

FAN MODE

Select the operation of the Fan 1 output.

FAN 1 VENTILATION

Select whether Fan 1 output operates to provide ventilation.

Note: This item is only available when the Fan Mode is set to None.

VENTILATION PRE-VENT SECTION I

Select how long the ventilation operates continuously prior to the Wake or Occupied events.

Note: This item is only available when the Fan Mode is set to None and F1 Vent is set to On.

SECTION I

SECTION G

ADJUST MENU

Wake

UnOccupied

Occupied

Sleep

AUTO, OFF,

10% to 90%, ON

Default = AUTO

OFF, 70 to 180°F

(OFF, 21.0 to 82.0°C)

Default = 110°F

(43.0°C)

40 to 80°F, OFF

(4.5 to 26.5°C, OFF)

Default = OFF

LTD

USER

INST

ADV

FAN OPERATION SECTION I

The minimum percentage of time the ventilation fan operates during each event.

Auto operates with heat or cool. On operates continuously. % sets a minimum On time for each cycle. Note: This item is only available when the Fan Mode

is set to 1 or F1 Vent is set to On.

HEAT COIL MINIMUM SECTION I

Set the minimum coil temperature before turning on the fan for heating. This allows the fan coil to heat up and prevents the fan from blowing cold air.

Note: This item is only available when H1 or H2 Terminal is set to Coil, Sensor 2 is set to Coil and Fan Mode is set to 2.

COOL COIL MAXIMUM SECTION I

Set the maximum coil temperature before turning on the fan for cooling. This allows the fan coil to cool off and prevents the fan from blowing hot air.

Note: This item is only available when Cool Stage is set to 1, Sensor 2 is set to Coil and Fan Mode is set to 1 or 2.

Continued on next page.

Adjust Menu (6 of 7)

Item Field Range Access Description

0:00 to 2:00 min

(10 sec increments)

Default = 0:30

0:00 to 3:00 min

(10 sec increments)

Default = 0:30

70 to 160°F, OFF

(21.0 to 71.0°C, OFF)

Default = 110°F

(43.0°C)

OFF, 40 to 70°F

(OFF, 4.5 to 21.0°C)

Default = 60°F

(15.5°C)

ADV

FAN DELAY

Set the fan’s delay time after a heating zone calls for heat. This allows the fan coil to heat up and prevents the fan from blowing cold air.

Note: This item is only available when H1 or H2 Terminal is set to Coil or Furnace, Sensor 2 is not set to Coil and Fan Mode is set to 2.

FAN PURGE SECTION I

Set how long the fan operates after a call for heating or cooling ends. This purges any heat or cold remaining in the fan coil.

Note: This item is only available when H1 or H2 Terminal is set to Coil or Furnace, Sensor 2 is not set to Duct and Fan Mode is set to 1 or 2.

HEAT PURGE FAN SECTION I

Set the minimum duct temperature. This purges heat from the coil after the call for heat is removed.

Note: This item is only available when H1 or H2 Terminal is set to Coil or Furnace, Sensor 2 is set to Duct and Fan Mode is set to 2.

COOL PURGE FAN SECTION I

Set the maximum duct temperature. This purges cooling from the coil after the call for cooling is removed.

Note: This item is only available when Cool Stage is set to 1, Sensor 2 is set to Duct and Fan Mode is set to 1 or 2.

SECTION I

ADJUST MENU

Continued on next page.

OFF, 200 to 2000 hr

Default = 500 hr

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

FILTER SECTION J

Set the number of hours Fan 1 should operate before you replace the filter. When the time expires, the filter symbol appears.

Note: This item is only available when the Fan Mode is set to 1 or 2.

WARM WEATHER SHUT DOWN

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

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 R

Adjust Menu (7 of 7)

Item Field Range Access Description

ADJUST MENU

40 to 100°F, OFF

(4.5 to 38.0°C, OFF)

Default = 60°F

(15.5°C)

OFF, 35 to 100°F

(OFF, 1.5 to 38.0°C)

Default = OFF

OFF, 35 to 100°F

(OFF, 1.5 to 38.0°C)

Default = OFF

HEAT, COOL,

H/C, OFF

Default = H/C

INST

ADV

INST

ADV

WWSD UNOCCUPIED AND SLEEP SECTION R

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

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

CWSD OCCUPIED AND WAKE SECTION S

Set the Cold Weather Shut Down (CWSD) temperature for the cooling system during the Occupied and Wake events.

Note: This item is only available when Cool Stage is set to 1.

CWSD UNOCCUPIED AND SLEEP SECTION S

Set the Cold Weather Shut Down temperature for the cooling system during the Unoccupied and Sleep events.

Note: This item is only available when Cool Stage is set to 1.

OPTIMUM START / STOP SECTION M

Select whether to use Optimum Start / Stop for heating, cooling, or both.

Note: This item is only available when either a heating schedule and / or a cooling schedule is selected.

Heat can be selected if the heating schedule setting is on. Cool can be selected if the cooling schedule setting is on, and Cool Stages is set to 1. To select H/C, both schedules must be on with Cool Stages set to 1.

Lo, 2, 3, Hi

ADV

Default = Hi

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

RADIANT BASE LOAD

Select the radiant heating load relative to the overall heating load.

Note: This item is only available when H1 Terminal is set to HRF1 or HRF2. H2 Terminal is set to Coil, Convector, Radiator, Baseboard or Other, and Sensor 1 and 2 are not set to FLOR.

SECTION P

+ 28 hidden pages

tekmar 545 Installation

Specifications and Main Features

Frequently Asked Questions

User Manual