Tekmar 554 Thermostat Installation and Operation Manual

Contents hide
1 Tekmar 554 Thermostat
2 Introduction
2.1 Features
3 Important Safety Information
3.1 Getting Started
4 Installation
4.1 Preparation
4.2 Removing the Thermostat Base
4.3 Mounting the Thermostat Base
5 Thermostat Wiring
5.1 Compatible Sensors
5.2 Testing the Thermostat Wiring
5.3 Mounting the Thermostat
6 Switch Settings
7 User Interface
7.1 Home Screen
8 Programmable Settings
8.1 Programming Menus
9 Sequence of Operation
9.1 Heating Operation
9.2 Cooling Operation
9.3 Room Min and Max Limits
9.4 Mode Operation
9.5 Hydronic Pump and Valve Operation
9.6 Fan Operation
9.7 Air Group Operation
10 Time Clock
11 Temperature Adjustment
12 Programmable Schedules
12.1 Scenes (System Override)
12.2 Secondary Temperature Display
13 Access Levels
13.1 tekmarNet® Address
13.2 Cleaning the Thermostat
14 Troubleshooting
14.1 Technical Data
15 Limited Warranty and Product Return Procedure
16 REFERENCE:

TEKMAR

Tekmar 554 Thermostat

Tekmar 554 Thermostat-product

Introduction

The tekmarNet® Thermostat 554 is a communicating touchscreen thermostat designed to operate one heating stage, one cooling stage, and a fan.

Features

Important Safety Information

It is your responsibility to ensure that this thermostat is safely installed according to all applicable codes and standards. tekmar is not responsible for damages resulting from improper installation and/or maintenance.
Tekmar 554 Thermostat-fig.1This is a safety alert symbol. The safety alert symbol is shown alone or used with a signal word (DANGER, WARNING, or CAUTION), a pictorial and/or a safety message to identify hazards. When you see this symbol alone or with a signal word on your equipment or in this manual, be alert to the potential for death or serious personal injury.
Tekmar 554 Thermostat-fig.2This pictorial alerts you to electricity, electrocution, and shock hazards.
This symbol identifies hazards which, if not avoided, could result in death or serious injury.
This symbol identifies hazards which, if not avoided, could result in minor or moderate injury.
This symbol identifies practices, actions, or failure to act which could result in property damage or damage to the equipment.
Read the manual and all product labels BEFORE using the equipment. Do not use it unless you know the safe and proper operation of this equipment. Keep this manual available for easy access by all users. Replacement manuals are available at tekmarControls.com

WARNING

Do not attempt to service the thermostat. There are no user-serviceable parts inside the thermostat. Attempting to service the thermostat voids the warranty.

Getting Started

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.

Installation

Preparation

Tools Required

Materials Required 

Installation Location

Choose the placement of the thermostats early in the construction process to enable proper wiring during rough-in.

NOTICE

To prevent the risk of personal injury and/or death, make sure power is not applied to the thermostat until it is fully installed and ready for final testing. All work must be done with power to the circuit being worked on turned off.
Please be aware local codes may require this thermostat to be installed or connected by an electrician.

Removing the Thermostat Base

Tekmar 554 Thermostat-fig.3

To remove the thermostat base:

Mounting the Thermostat Base

Tekmar 554 Thermostat-fig.4

If a single gang box is used:

NOTICE

Do not over-tighten wiring screws. Hand-tighten only.

If a gang box is not used:

Tekmar 554 Thermostat-fig.5

NOTICE

Do not over-tighten wiring screws. Hand-tighten only.

Thermostat Wiring

The thermostat can be wired in three different ways.

Compatible Sensors

The thermostat is compatible with Indoor Sensor 076, 077, and 084, Slab Sensor 072, 073, and 079, Outdoor Sensor 070, Universal Sensor 082 and Duct Sensor 083.
Only qualified personnel should perform testing procedures. A licensed electrician is recommended.

Testing the Thermostat Wiring

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
Testing the Heat W Relay

  1. Set the Mode to Heat and increase the Set Heat temperature above the Room temperature.
  2. The “Heat On” symbol will appear on the display.
  3. Use an electrical test meter to measure (ac) voltage between the W and C terminals at the heating equipment location. The reading should be 24 V (ac) ±10%.

Testing the Cooling Y Relay

  1. Set the Mode to Cool and decrease the Set Cool temperature above the Room temperature.
  2. The “Cool On” symbol will appear on the display.
  3. Use an electrical test meter to measure (ac) voltage between the Y and C terminals
    at the cooling equipment location. The reading should be 24 V (ac) ±10%.

Testing the Fan G Relay

  1. Touch the Fan key to set the Fan to “On”.
  2. Use an electrical test meter to measure (ac) voltage between the G and C terminals at the blower fan equipment location. The reading should be 24 V (ac) ±10%.

Mounting the Thermostat

Tekmar 554 Thermostat-fig.6

Switch Settings

Tekmar 554 Thermostat-fig.7

Switch Position Action
 

 

 

 

1

  

ON

 LOCK ACCESS LEVEL

The thermostat is locally locked and the access level cannot be changed. Set to Lock when installation has been completed.
OFF UNLOCK ACCESS LEVEL

The 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.

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.
 

2

 ON Not used
OFF Not used

User Interface

Home Screen

Tekmar 554 Thermostat-fig.8 Tekmar 554 Thermostat-fig.9

Programmable Settings

Programming Menus

Press and hold the Home button for 3 seconds to enter the programming menus. The thermostat returns to the last programming menu previously used.

Tekmar 554 Thermostat-fig.10

Select a Programming Menu

Setting Items

Tekmar 554 Thermostat-fig.12 Tekmar 554 Thermostat-fig.13 Tekmar 554 Thermostat-fig.14 Tekmar 554 Thermostat-fig.15 Tekmar 554 Thermostat-fig.16 Tekmar 554 Thermostat-fig.17 Tekmar 554 Thermostat-fig.18 Tekmar 554 Thermostat-fig.19 Tekmar 554 Thermostat-fig.20 Tekmar 554 Thermostat-fig.21 Tekmar 554 Thermostat-fig.22 Tekmar 554 Thermostat-fig.23 Tekmar 554 Thermostat-fig.24 Tekmar 554 Thermostat-fig.25 Tekmar 554 Thermostat-fig.26 Tekmar 554 Thermostat-fig.27 Tekmar 554 Thermostat-fig.28 Tekmar 554 Thermostat-fig.29

Sequence of Operation

Heating Operation

Cooling Operation

Room Min and Max Limits

Heating and cooling minimum and maximum temperature settings are available in the Set Temp menu. These allow the installer to select start and stop limits for the temperature settings in both heating and cooling for the User and Limited access levels. This is useful in commercial installations and child/guest bedrooms where the availability of the full temperature setting range may not be desirable.

Mode Operation

The thermostat includes a mode key. Available modes are:

Hydronic Pump and Valve Operation

Fan Operation

The fan operates together with the air heating or cooling systems. The user can also select to operate the fan manually by pressing the Fan button. This allows the user to choose between Auto and On. “Auto” allows the fan to operate with heating or cooling, but normally the fan is off. “On” forces the fan to operate continuously.

Air Group Operation

To prevent heating and cooling at the same time, this thermostat can operate with other thermostats on a tekmarNet system to form an air group. The 554 can be set up as the air group master. Other heat-only thermostats can be set up as an air group member. When operating as an air group, the air temperature readings of all the air group member thermostats are communicated to the air group master thermostat and an average air temperature is determined. The cooling operates based on the average temperature reading. When the air group master is in cooling operation, the air group member thermostats do not operate the heating system for air heating.

Tekmar 554 Thermostat-fig.30

Time Clock

The thermostat includes a time clock that is automatically visible in the Home menu when a programmable schedule is used. If the schedule is not used, the user has the option to indicate that the time should be shown in the Home menu.
During a loss of power, the thermostat continues to keep the correct time and date for at least 4 hours. If the power is off for more than 4 hours, the user will need to set the time.
The thermostat supports automatic update for daylight savings time. Simply set Daylight Save to On together with the correct day, month, and year and the time is automatically updated each spring and fall.
When a thermostat is connected to a tekmarNet system, adjustment of the time on one thermostat updates all connected thermostats. This option can be disabled by selecting the Local Network Group setting to On.

Temperature Adjustment

Permanent Adjustment ― No Schedule
When no programmable schedule is used, touch the up or down arrows to permanently set the “Set Heat Room” or “Set Cool Room” temperature. This thermostat is capable of controlling both air and floor temperature.

Permanent Adjustment ― With Schedule 
When a programmable schedule is used, there are two room heating temperatures available, one for the Tekmar 554 Thermostat-fig.33time period and another for the Tekmar 554 Thermostat-fig.34time period. When touching the Tekmar 554 Thermostat-fig.11 arrow to change the temperature, only the temperature for the current time period is changed.

  1. To adjust the temperature for both time periods, press and hold the Home button for 3 seconds to enter the programming menus.
  2. Enter the “SET TEMP” menu to adjust the following settings:
    • Set Heat RoomTekmar 554 Thermostat-fig.33 (air heating or air heating with floor sensor)
    • Set Heat RoomTekmar 554 Thermostat-fig.34 (air heating or air heating with floor sensor)
    • Set Heat Room AWAY (air heating or air heating with floor sensor)
    • Floor MinTekmar 554 Thermostat-fig.33 (air heating with floor sensor)
    • Floor Min Tekmar 554 Thermostat-fig.34(air heating with floor sensor)
    • Set Cool RoomTekmar 554 Thermostat-fig.33 (air cooling)
    • Set Cool RoomTekmar 554 Thermostat-fig.34 (air cooling)
    • Set Cool Room AWAY (air cooling)

Temporary Hold 
Temporary hold allows a user to change the temperature for a period of time and then automatically return to the permanent temperature setting. This is especially useful in commercial buildings that are in use for short amounts of time. When Temporary Hold is selected, touching the up or down arrow changes the temperature for either 3, 6, 9 or 12 hours. If the thermostat is using a schedule, ‘Schd’ provides a temporary hold until the next scheduled event time. After the temporary hold time expires, the thermostat returns to normal operation. By default, the temporary hold feature is off.Tekmar 554 Thermostat-fig.31

Programmable Schedules

Energy savings can be achieved by lowering the heating temperature and increasing the cooling temperature, for example, at night,Tekmar 554 Thermostat-fig.32 at other times when the building is unoccupied.
When operating on a programmable schedule  Tekmar 554 Thermostat-fig.32  symbol is shown in the Home menu. The or indicates the current operating temperature.
All schedules are stored in permanent memory and are not affected by a loss of power.

Display Action
Tekmar 554 Thermostat-fig.33 Day temperature
Tekmar 554 Thermostat-fig.34 Night temperature

This thermostat can operate on a programmable schedule in order to automatically lower the room temperature setting. Options include:

Once the type of schedule has been selected, the thermostat can support schedules that have either:

The schedules can be repeated every:

A 7-day schedule allows a unique time to be set to change the temperature for each day of the week.
The schedule also includes a “SKIP” option that allows the programmable schedule to skip a temperature change and remain at the previous temperature setting. The “SKIP” setting can be found between 11:50 PM (23:50 hours) and 12:00 AM (0:00 hours).

When a programmable schedule is selected, there is a time delay while the room warms up or cools down fromTekmar 554 Thermostat-fig.34 the temperature toTekmar 554 Thermostat-fig.33 the temperature. The thermostat has the option of using Optimum Start to predict the heat-up or cool down rate of the room. When Optimum Start is set to On, the heating or cooling is started in advance to allow the room to reach the Set Room Tekmar 554 Thermostat-fig.33temperature at the time set in the programmable schedule.

Scenes (System Override)

Scenes provide an easy way to save energy, when building residents are on vacation, for example, or override a programmable schedule when plans change.
Away Key
This thermostat includes an Away Key to set the thermostat to quickly turn down the heating temperatures and increase the cooling temperatures on all thermostats and suspend heating the domestic hot water tank to maximize energy savings. To enable, go the Scene menu and set Away Key to on.

To activate the Away scene, touch “Going Away” on the screen.Tekmar 554 Thermostat-fig.35

Additional Scenes 
Additional energy saving scenes are available when a User Switch or Gateway is installed. A complete listing of each scene is shown below.

Scene Number Scenes

= None Operation

 Scenes

= Away Operation

 Scenes

= All Operation

 Scenes

= Guest Operation
1 PermanentTekmar 554 Thermostat-fig.33  or Schedule Permanent Tekmar 554 Thermostat-fig.33or Schedule Permanent Tekmar 554 Thermostat-fig.33or Schedule PermanentTekmar 554 Thermostat-fig.34
2 Scene 1 Away Away Away
3 Scene 1 Scene 1 PermanentTekmar 554 Thermostat-fig.34 PermanentTekmar 554 Thermostat-fig.34
4 Scene 1 Scene 1 Configurable PermanentTekmar 554 Thermostat-fig.34
5 Scene 1 Scene 1 Permanent Tekmar 554 Thermostat-fig.33or Schedule Permanent Tekmar 554 Thermostat-fig.33or Schedule
6 Scene 1 Scene 1 Temporary  3 HoursTekmar 554 Thermostat-fig.33 PermanentTekmar 554 Thermostat-fig.34
7 Scene 1 Scene 1 Temporary  4 HoursTekmar 554 Thermostat-fig.34 PermanentTekmar 554 Thermostat-fig.34
8 Scene 1 Scene 1 Temporary  8Tekmar 554 Thermostat-fig.33 Hours PermanentTekmar 554 Thermostat-fig.34

Recommendation on How to Use Scenes 
Deciding how to use scenes depends on the needs and lifestyle of the customer using the building.

Secondary Temperature Display

This thermostat can display the outdoor, floor, or room heating and cooling temperature settings in the smaller number area at the top right of the screen. To toggle the item currently displayed, touch the secondary temperature. Display of the floor or outdoor temperature requires a connection to an outdoor or floor temperature sensor, or the thermostat is connected to a tekmarNet® system that includes an outdoor sensor. The reading of the outdoor sensor connected directly to the thermostat takes precedence over any outdoor sensor reading available on the tekmarNet® system.

Tekmar 554 Thermostat-fig.37

Access Levels

The thermostat Toolbox menu supports four access levels: Installer (INST), User (USER), Limited (LTD), and Secure (SEC). The access level can be adjusted when the thermostat is unlocked. There are two locations to lock the thermostat:

  1. Locally on the thermostat using the Lock switch located in the wiring area.
  2. Globally on the tekmarNet® system control using the Lock switch or Access level (if installed)
    Both the local and global lock settings must be set to unlock before the thermostat access level is adjustable.
    The selection of the access level is dependent on the use of the building and the type of occupants.

tekmarNet® Address

When connected to a tekmarNet® system, each thermostat will be automatically given an address. The address is useful as a troubleshooting tool to locate thermostats with errors and allows room naming on a Gateway.
The address consists of the bus water temperature followed by the thermostat device number. Available buses are b (boiler), 1, 2 and 3. Device numbers range from 01 to 24. If the thermostat is used without a tekmarNet® system control, the bus number is not shown.
When using the thermostat with a Gateway, it is important that each address be changed to be manually set. This allows each thermostat to be named on the Gateway. If two thermostats 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 or to an Auto.
Keeping a documented list of thermostat addresses is highly recommended. This is extremely helpful when troubleshooting errors. The tekmarNet® system control will display the addresses of thermostats that have errors. Refer to the address documentation to simplify the process of locating and correcting error messages.

Cleaning the Thermostat

Entering the Screen Clean menu allows 30 seconds to clean the thermostat and display with a moist cloth. Do not use solvents to clean the thermostat.

Troubleshooting

Tekmar 554 Thermostat-fig.38 Tekmar 554 Thermostat-fig.39Tekmar 554 Thermostat-fig.40 Tekmar 554 Thermostat-fig.41

Technical Data

tekmarNet® Thermostat 554; One Stage Heat, One Stage Cool, One Fan
Literature 554_A, 554_C, 554_D, 554_J, 554_Q, 554_U
Control Microprocessor control. This is not a safety (limit) control.
Packaged weight 0.8 lb. (350 g)
Dimensions 5″ H x 3-1/4″ W x 15/16″ D (127 x 82 x 23 mm)
Enclosure White PVC plastic, NEMA Type 1
Approvals Meets Class B: ICES & FCC Part 15
Ambient conditions Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% non-condensing
Power supply 24 V ±10%, 60 Hz, 1.8 VA standby, NEC/CEC Class 2
Relays 24 V (ac), 2 A
Temperature sensor NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
– Included None
– Optional tekmar type # 070, 071, 072, 073, 076, 077, 079, 082, 083, 084

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 passthrough 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 passthrough 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.

REFERENCE:

Tekmar 554 Thermostat Installation and Operation Manual

Other  Manual:

Tekmar 554 Thermostat Quick Set-up Guide

Tekmar 554 Thermostat User Manual

Tekmar 554 Thermostat Specification Sheet

TEKMAR

Tekmar 554 Thermostat Installation and Operation Manual

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