532_D 02/15 tekmarNet® Thermostat 532 Zoning Replaces: New Installation & Operation Manual Introduction The tekmarNet® Thermostat 532 is a communicating thermostat designed for one stage hydronic heating systems. Simple up and down buttons and a display with large type make this thermostat easy to read and use. It has two auxiliary sensor inputs that can be assigned to measure room, floor, or outdoor temperature. An optional floor sensor protects the floor from overheating and enhances comfort.
Table of Contents Getting Started ..................................................................................................2 Important Safety Information .............................................................................3 Installation ..............................................................................................................4 Preparation ........................................................................................................
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. This 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.
Installation Preparation ------------------------------------------------------------------------------------Tools Required ----• tekmar or jeweller screwdriver • Phillips head screwdriver • Wire stripper • Drill (for wall anchor) • 3/16" drill bit (for wall anchor) Materials Required ---------------------------------------------------------------------------------• 18 AWG LVT Solid Wire (Low Voltage Connections) -----------------------------------------------------Installation Location -----------------
Mounting The Thermostat 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.
Thermostat Wiring tekmarNet ® 2 - Wiring Center 313 or 314---------------------------------------- Optional Sensor 1 tN4 C R tN2 tN2 Rh W No Power Com S1 S2 Optional Sensor 2 tN2 tN2 tN2 Wiring Center tekmarNet ® 4 - Wiring Center 315 or 316 -------------------------------------Install field jumper wire R to Rh tN4 C R tN2 tN2 Rh W No Power Com S1 S2 Optional Sensor 1 Optional Sensor 2 tN4 C R W tN4 Wiring Center Zone Valve ----------------------------------------------------------------------
Thermostat Wiring Switching Relay ----------------------------------------------------------------------------------------- Optional Sensor 1 tN4 C R tN2 tN2 Rh W R W Zone 1 R W Zone 2 No Power Com S1 S2 R W Zone 3 Optional Sensor 2 24 V Com Class 2 Transformer Switching Relay X Zone 1 H N X Zone 2 H N Zone 3 H N N H N L T T Pump Boiler Relay 003 -----------------------------------------------------------------------------------------------------Relay 003 T T 3 4 5 6 Install field jump
Testing the Thermostat Wiring Only qualified personnel should perform testing procedures. A licensed electrician is recommended. Testing tN2 Wiring -----------------------------------------------------------------------------------It is normal for the thermostat to take up to 20 seconds to power on once connected to a tN2 system. If the thermostat display does not turn on after 20 seconds, try moving the thermostat tN2 wire connections to another zone on the tN2 Wiring Center or tN2 Zone Manager.
Switch Settings The switch settings are located on the rear of thermostat face. 3 Switch Position Action ON SETBACK The thermostat follows a programmable setback schedule as a schedule member if available. Requires the installation of a Thermostat 552, 553, 554, 557 or a Timer 033 to use this feature. OFF OFF The thermostat does not follow a programmable setback schedule. ON SCENE The thermostat responds to changes in the scene (systemwide manual overrides).
User Interface Home Screen Outdoor F F Away WWSD Room MINMAX Mode Off Floor Heat On Symbols Description HEAT ON Heat is turned on. WWSD Warm Weather Shut Down. MODE OFF The heating system is off. WARNING SYMBOL Indicates an error is present. SUN Operating at the occupied (day) temperature. SCENE AWAY Operating at Away temperature. MOON Operating at the unoccupied (night) temperature. tekmarNet® Communication is present.
Sequence of Operation Heating Operation To change the heat temperature setting, push the or button to select a preferred temperature setting. The Heat On symbol is shown on the display when the thermostat is heating. The heat can cycle on and off within +/- 1.5°F (1°C) of the temperature setting. The floor and air heating can be shut off by holding the button until Set Room is Off.
Room Minimum and Maximum -------------------------------------------------------------Room Minimum and Maximum temperature settings are available in the Setup menu. These allow the installer to select start and stop limits for the temperature setting. This is useful in commercial installations and child or guest bedrooms where availability of the full temperature setting range may not be desirable.
Air Group Operation Air Group In order to prevent heating and cooling at the same time, this thermostat can operate together with other thermostats on a tekmarNet system to form an air group. In an air group, a heat-cool thermostat is assigned as the air group master. The air group master operates the cooling and air heating equipment for the group. The 532 can be set to be a member of the air group.
Scenes (System Override) Scenes provide an easy way to save energy while away on vacation, or override a pre-set schedule when plans change. tekmarNet® devices such as a User Switch 479 provide scene adjustment.
Programmable Settings Setting Range Default The following settings are available when the thermostat is locked or unlocked. and buttons together for 3 seconds to enter and advance to the Press the next setting. MODE Heat, Off Heat Select heat or off. SET ROOM Set the room temperature while in the occupied time period. Available when a room sensor is connected. 70°F 40 to 95°F (4.5 to 35.0°C) (21.0°C) SET ROOM Set the room temperature while in the unoccupied time period.
Setting Range Default SCHEDULE The thermostat can follow a shared network schedule. 1 to 4 1 Select to follow either schedule master 1, 2, 3 or 4. Requires tekmarNet. The following additional settings are available when the thermostat is unlocked. SET LIMIT ROOM MAX Set the max room temperature limit while in the occupied time period. Available when a room sensor is connected. 95°F 40 to 95°F (4.5 to 35.0°C) (35.
Troubleshooting Error Messages Error Message Description SETUP MENU SAVE ERROR The thermostat failed to read the programmable settings from memory and has reloaded the factory default settings. The thermostat operates on the factory defaults settings to ensure the building does not freeze. To clear the error, set the switch settings to unlock and go through all the settings in the Programmable Setting menu.
Error Message Room Room Description ROOM SENSOR OPEN CIRCUIT ERROR The built-in air temperature sensor has an open circuit fault. Do not confuse this error with the auxiliary room sensor short circuit error. This error cannot be field repaired. Contact your wholesaler or tekmar sales representative for details on repair procedures. ROOM SENSOR SHORT CIRCUIT ERROR The built-in air temperature sensor has a short circuit fault. Do not confuse this error with the auxiliary room sensor short circuit error.
Error Message Description INTERNAL ERROR The thermostat has an internal fault. This error cannot be field repaired. Contact your wholesaler or tekmar sales representative for details on repair procedures. POWER The thermostat power supply voltage on wiring terminals R and C is too low. The thermostat does not operate until the voltage is increased to 24 V (ac). Technical Data ® tekmarNet Thermostat 532 One Stage Heat Literature 532_C, 532_D, 532_Q, 532_U Control Microprocessor control.
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.
