Tekmar TekmarNet 557 User manual

tekmarNet®Thermostat 557

Installation & Operation Manual

557

08/12

Zoning

Replaces: New

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A Watts Water Technologies Company

The tekmarNet®Thermostat 557

provides operation for:

One Stage Radiant Floor Heat,

Two Stage Heat Pump for Heat &

Cool, One Stage Backup Heat

Two Stage Heat, Two Stage Cool

And includes

One Stage Fan Control

Humidity Control

•

Introduction Energy Saving Features

Programmable Schedule

Zone Synchronization

Zone Post Purge

Warm Weather Shut Down

Cooling Interlock

Auto Heating Cycle

Temporary Hold

Away Scene Key

•

Additional Features

3 Auxiliary Sensor Inputs

tekmarNet®Communication

Compatible

Touchscreen Technology

Outdoor & Floor Temperature

Display

Backlight

Radiant Floor Heating & Cooling

Freeze Protection

Exercising

Heat / Cool Priority

Air Group Master

Network Schedule Master or

Member

Optimum Start

Scenes

Daylight Savings Time

Room Temperature Limiting

Relative Humidity Control

•

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Congratulations on the purchase of your new tekmar®thermostat.

This manual will step through the complete installation, programming and sequence

of operation for this control. At the back, there are tips for control and system

troubleshooting.

Getting Started

Table of Contents

Getting Started ...............................2

Installation ...........................................3

Caution............................................3

Preparation .....................................3

Removing The Wiring Cover...........3

Mounting The Thermostat...............4

Thermostat Wiring ..........................4

Compatible Sensors .......................5

Testing the Thermostat Wiring........5

Switch Settings....................................6

User Interface......................................7

Home Screen..................................7

Symbols Description.......................7

Programmable Settings.......................8

Programming Menus ......................8

Set Temp Menu..........................9-12

Time Menu............................... 12-13

Schedule Menu........................14-15

Display Menu ...........................15-16

Scenes Menu................................16

Monitor Menu...........................17-21

Toolbox Menu ..........................21-23

Setup Menu............................. 24-30

Sequence of Operation......................31

Heating Operation.........................31

Cooling Operation.........................32

Room Min and Max Limits ............33

Hydronic Pump / Valve Operation ....34

Fan Operation...............................34

Relative Humidity Operation.........35

Air Group Operation......................37

Time Clock....................................37

Temperature Adjustment ..............38

Programmable Schedules ............39

Scenes (System Override)............40

Secondary Temperature Display...41

Access Levels...............................42

tekmarNet®Address .....................42

Cleaning the Thermostat ..............42

Troubleshooting .................................43

Error Messages ...................... 43-47

Technical Data ..............................47

Limited Warranty and Product

Return Procedure .........................48

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Preparation

tekmar or jeweller screwdriver

Phillips head screwdriver

•

Wire Stripper•

Tools Required

------------------------------------------------------

Materials Required

--------------------------------------------------

18 AWG LVT Solid Wire

(Low Voltage Connections)

•

Installation

Choose the placement of the thermostats early in the construction process to enable

proper wiring during rough-in.

Consider the following:

Interior Wall.

Keep dry. Avoid potential leakage onto the control.

Relative Humidity less than 90%. Non-condensing environment.

No exposure to extreme temperatures beyond 32-122°F (0-50°C).

No draft, direct sun, or other cause for inaccurate temperature readings.

Away from equipment, appliances, or other sources of electrical interference.

Easy access for wiring, viewing, and adjusting the display screen.

Approximately 5 feet (1.5 m) off the finished floor.

The maximum length of wire is 500 feet (150 m).

Strip wire to 3/8” (10 mm) for all terminal connections.

Use standard 8 conductor, 18 AWG wire.

•

Installation Location

-------------------------------------------------

Caution

Improper installation and operation of this control could result in damage to the equipment

and possibly even personal injury or death. It is your responsibility to ensure that this

control is safely installed according to all applicable codes and standards. This electronic

control is not intended for use as a primary limit control. Other controls that are intended

and certified as safety limits must be placed into the control circuit.

Removing The Wiring Cover

To remove the thermostat’s wiring cover:

Locate the slotted hole on the right side

of the thermostat.

Insert a screwdriver in the slotted hole

to depress the latch.

Remove the wiring cover from the

thermostat.

•

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Thermostat Wiring

The thermostat operates a single heating system zone and can be wired in three

different ways.

Stand Alone

- Similar to tekmarNet

4 wiring with tN4 wiring terminal not used. First

stage heating relay (Rh1 - W1) can be wired directly to switching relays.

tekmarNet®4- Allows the thermostat to be wired using 4 wires to a tN4 Wiring Center

or Zone Manager. The tN4 communication bus can also be daisy-chained to allow

multiple thermostats to be connected together without home running wires back to the

mechanical room.

tekmarNet®2- Allows the thermostat to be wired point-to-point using 2 wires to a tN2

Wiring Center, House Control, or Zone Manager. This allows easy wiring for retrofit

applications.

Application specific wiring diagrams are provided in the 557_A brochure.

If a gang box is not used:

Feed the wiring through the large

holes in the thermostat.

Use screws in the screw holes to

fasten the thermostat to the wall.

At least one of the screws should

enter a wall stud or similar rigid

material.

Terminate wiring to the wiring strip.

Re-install the wiring cover.

•

Mounting The Thermostat

If a single gang box is used:

Feed the wiring through the large

holes of the thermostat.

Fasten the base of the thermostat to

the gang box using two screws.

Terminate wiring to the wiring strip.

Re-install the wiring cover.

•

Stud

Wall

Thermostat

Wiring Cover

Stud

Thermostat

Wiring

Cover

31/4”

(83 mm)

Switch Box

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Testing tekmarNet®2 Wiring

------------------------------------------

Testing the Power

If the thermostat display turns on, this indicates that the thermostat is operating correctly

and there are no electrical issues. In the event that the display is off, or the display is

cycling on and off:

1. Remove the thermostat wiring cover.

2. Check to ensure that the tN2 wires on the thermostat are connected to a zone on a

House Control, Wiring Center, or Zone Manager.

3. Use an electrical meter to measure DC voltage between the tN2 terminals.

If the DC voltage is 0 V (dc) for at least 20 seconds, then there is an open or

short circuit in the tN2 wires.

If the DC voltage is 0 V (dc) for 10 seconds and then is 23 to 24 V (dc) for 5

seconds, this indicates the wiring is correct.

4. If the thermostat display is off, or is cycling on and off, move the thermostat to the

next available zone on the House Control, Wiring Center, or Zone Manager.

If the thermostat display remains permanently on, there may be a fault with the

previously tried zone on the House Control, Wiring Center, or Zone Manager.

If the thermostat display continues to be off, or is cycling on and off, there may

be a fault on the thermostat.

If a fault is suspected, contact your tekmar sales representative for assistance.

Testing tekmarNet®4 and Stand Alone Wiring

--------------------------

Testing the Power

1. Remove the front cover from the thermostat.

2. Use an electrical test meter to measure (ac) voltage between the R and C terminals.

The reading should be 24 V (ac) +/– 10%.

3. Install the front cover.

Testing the Relay Outputs

--------------------------------------------

The thermostat includes a User Test to check if the thermostat’s relays are operating

and that the thermostat is wired correctly to the HVAC equipment. The User Test setting

can be located in the Toolbox menu. Either Heat or Cool test can be selected.

Cancel button - Exits the user test and returns the Toolbox menu.

Hold button - Pauses the user test step for up to 5 minutes.

Next Item button - Advances the user test to the next test step.

•

Testing the Thermostat Wiring

Compatible Sensors

The thermostat is compatible with Indoor Sensor type 076, 077, 084, Slab Sensor

type 072, 073, 079, Outdoor Sensor type 070, Duct Sensor type 083 and Humidity &

Temperature Sensor type 086.

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Switch Settings

Switch

Position

Action

ON LOCK ACCESS LEVEL

Thermostat is locally locked and the access level cannot be changed.

Set to Lock when installation has been completed.

OFF

UNLOCK ACCESS LEVEL

Thermostat is unlocked and the access level may be changed. Go to

the Toolbox menu to change the access level. Set to Unlock during

the installation process.

Note: tekmarNet®system controls include a Global Lock that locks all

connected thermostats. Set the tekmarNet

system control to unlock

to allow access level adjustment on all connected thermostats.

2ON

Not used

OFF

Not used

User Test Sequence

Heat Test Cool Test

Step Relay(s) Closed Step Relay(s) Closed

O Relay OFF Rc-O/B is opened O Relay ON Rc-O/B

B Relay ON Rc-O/B B Relay OFF Rc-O/B is opened

Fan Rc-G Fan Rc-G

Y1 Heat Rc-Y1 and Rc-G Y1 Cool Rc-Y1 and Rc-G

Y2 Heat Rc-Y1 and Rc-Y2 and

Rc-G Y2 Cool Rc-Y1 and Rc-Y2 and

Rc-G

W2 Heat Rh2-W2 W2 Cool Rh2-W2

W1 Heat Rh1-W1 Humidify* ACC-ACC

Humidify* ACC-ACC Dehumidify* ACC-ACC or Rc-Y2

Dehumidify* ACC-ACC or Rc-Y2 HRV* Rc-Y2

HRV* Rc-Y2 Valve* ACC-ACC or Rc-Y2

Valve* ACC-ACC or Rc-Y2

*availability of test step and additional relay closures based upon Setup menu settings.

W1Rh1 Rh2 W2 ACC

Rc G1 O/B

0-10

Vdc Com S2 S1 tN4 CR

Rc G1 O/

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HEAT ON

Heat is turned on.

COOL ON

Cooling is turned on.

FAN

The fan is turned on.

%RH

Humidifying

%RH

Dehumidifying

SUN

Operating at the occupied (day)

temperature.

MOON

Operating at the unoccupied

(night) temperature.

tekmarNet®

Communication is present.

WARNING SYMBOL

Indicates an error is present.

ARROWS

Adjust the displayed setting.

SCENE AWAY

Operating at Away temperature.

TEMPORARY HOLD

Holds temperature for 3, 6, 9 or

12 hours.

WWSD

Warm Weather Shut Down.

COOL

Cooling system is on.

MIN or MAX

Reached the room min or max.

MIN FL or MAX FL

Reached the floor min or max.

Home Screen

Symbols Description

User Interface

Adjust

the Time

Adjust the

Schedule

Away Key

Switch between

Auto, Heat,

Cool, Off &

Emergency Mode

Home Button.

Return to the ‘Home’

Screen from any menu.

Press and hold for 3

seconds to access the

programming menus.

Room

Temperature

Turn the Fan on

The touchscreen of the 557 provides one touch access to these settings.

Home

Button

Adjust the

Temperature

Display Humidity, Heat &

Cool settings, Floor or

Outdoor temperature

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Programmable Settings

Press and hold the Home button for 3 seconds to enter the programming menus. The

thermostat returns to the last programming menu previously used.

Programming Menus

Select a Programming Menu

-----------------------------------------

Touch “NEXT” to advance (clockwise in above illustration) to the next menu.

Touch “BACK” to go backwards (counterclockwise in above illustration) through

the menus.

Touch “ENTER” to enter a menu.

Setting Items

--------------------------------------------------------

Touch or arrow to adjust the setting if required.

Touch “NEXT ITEM” to advance to the next item within the menu.

Touch “BACK ITEM” to go backwards to the previous item within the menu.

To return to the parent menu after changing a setting, press and release the

Home button.

To return to the Home screen, press and release the Home button twice or wait

30 seconds to automatically return to the Home screen.

•

Press and

hold for 3

seconds to

access the

programming

menus.

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Set Temp Menu (1 of 4)

Setting Display

SET HEAT ROOM

Set the room heating temperature for the event.

Room

Access Level: Installer, User Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Always available Default: 70°F (21.0°C)

SET HEAT ROOM

Set the room heating temperature for the event.

Room

Access Level: Installer, User Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Schedules are in use or Scenes are

set to All or Guest. Default: 65°F (18.5°C)

SET HEAT ROOM AWAY

Set the room heating temperature for the Away

scene.

Room

Access Level: Installer, User Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Scenes is set to Away, All or Guest. Default: 62°F (16.5°C)

HEAT MINIMUM ROOM LIMIT

Set the minimum room heating limit.

Access Level: Installer Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Schedules are in use or Scenes are

set to All or Guest. Default: 40°F (4.5°C)

HEAT MAXIMUM ROOM LIMIT

Set the maximum room heating limit for the

event.

Access Level: Installer Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Always available Default: 85°F (29.5°C)

HEAT MAXIMUM ROOM LIMIT

Set the maximum room heating limit for the

event.

Access Level: Installer Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Schedules are in use or Scenes are

set to All or Guest. Default: 85°F (29.5°C)

WARM WEATHER SHUT DOWN

Set the outdoor air temperature at which heating is

suspended during the event.

Access Level: Installer Range: CTRL (control), 40 to

100°F (4.5 to 38.0°C), OFF

Conditions: An outdoor sensor must be available. Default: CTRL

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Setting Display

WARM WEATHER SHUT DOWN

Set the outdoor air temperature at which heating is

suspended during the event.

Access Level: Installer Range: CTRL (control), 40 to

100°F (4.5 to 38.0°C), OFF

Conditions: An outdoor sensor must be available

and Schedules are in use or Scenes is set to All or

Guest. Default: CTRL

SET COOL ROOM

Set the room cooling temperature for the event.

Access Level: Installer, User Range: 50 to 100°F (10.0 to

38.0°C)

Conditions: Always Default: 78°F (25.5°C)

SET COOL ROOM

Set the room cooling temperature for the event.

Access Level: Installer, User Range: 50 to 100°F (10.0 to

38.0°C)

Conditions: Requires that Schedules are in use or

Scenes is set to All or Guest. Default: 85°F (29.5°C)

SET COOL ROOM AWAY

Set the room cooling temperature during the Away

scene.

Access Level: Installer Range: 50 to 100°F (10.0 to

38.0°C)

Conditions: Scenes is set to Away, All or Guest. Default: 85°F (29.5°C)

COOL MINIMUM ROOM LIMIT

Set the minimum room cooling limit while in the

event.

Access Level: Installer Range: 50 to 100°F (10.0 to

38.0°C)

Conditions: Always available. Default: 50°F (10.0°C)

COOL MINIMUM ROOM LIMIT

Set the minimum room cooling limit while in the

event.

Access Level: Installer Range: 50 to 100°F (10.0 to

38.0°C)

Conditions: Always available. Default: 50°F (10.0°C)

Set Temp Menu (2 of 4)

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