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D 540e 

02/08

tekmarNet

®

4 Thermostat 540e

- Data Brochure

 

1 of 12 

© 2008                 D 540e - 02/08

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tN4 Communication Compatible

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Requires 6 Wires (tN4, C, R, W, G, Y)

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One Stage Heat

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One Stage Cool

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One Fan

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Pulse Width Modulation

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CE Approved

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Schedule Member (Follows Schedule Master)

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Optimum Start

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Scenes

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Outdoor Temperature Display

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Backlight

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Exercising

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Freeze Protection

The tekmarNet

®

4 Thermostat 540e operates a single stage of heating, single stage cooling, and a single fan.

Introduction

Features

Summary of Contents for 540e

Page 1: ...tings wiring details for future reference 6 D540e 02 08 tekmarNet 4 Thermostat 540e Data Brochure 1 of 12 2008 D540e 02 08 tN4 Communication Compatible Requires 6 Wires tN4 C R W G Y One Stage Heat One Stage Cool One Fan Pulse Width Modulation CE Approved Schedule Member Follows Schedule Master Optimum Start Scenes Outdoor Temperature Display Backlight Exercising Freeze Protection The tekmarNet 4 ...

Page 2: ... 10 Flushing 10 tN4 Address 10 Error Messages 11 Cleaning the Thermostat 12 Warranty 12 Display and Switch Settings Switch Settings 1 2 3 4 tNt 540e 540e 1001 07 1 2 3 4 Switch Position Action 1 ON Setback The thermostat follows a programmable setback schedule as a schedule member if available OFF OFF The thermostat does not follow a programmable setback schedule 2 ON Scene The thermostat responds...

Page 3: ...he unoccupied night temperature CLOCK Operating on a programmable schedule AWAY Operating at the Away scene temperature WARM WEATHER SHUT DOWN The heating system has been shut off for the summer COOL GROUP MASTER Thermostat operates the cooling for a group of thermostats tN4 COMMUNICATION Communication is present WARNING SYMBOL Indicates an error is present SECONDARY DISPLAY MAIN DISPLAY ...

Page 4: ...s whenever the cooling is on The fan will turn on with the heating if fan mode 2 is selected The Mode button selects between Auto Cool Heat Vent and Off HeatMode Theheatingsystemoperates to maintain the Set Room temperature The fan may turn on with the heating if the setting is selected Room Temperature Pressthe orthe buttontoselecttheroomtemperature The display indicates whether the HEAT or the C...

Page 5: ...button to change from F to C and vice versa STEP 2 ViewTypeandSoftware Version The large number shows the type number as 540 The software version is shown in the upper right hand corner STEP 3 View tN4 Address The thermostat s tN4 address is shown The address toggles between a number and Au when using automatic addressing STEP 4 Manually Change tN4 Address Press the or the button to manually selec...

Page 6: ...COOL AWAY Set the room cooling temperature while in the Away scene 1 or 2 Default 1 FAN MODE Select if the fan should operate with cooling Fan Mode 1 or with the heating and cooling Fan Mode 2 OFF On Default OFF VENTILATION Select whether or not ventilation is required Auto 10 to 90 On Default Auto FAN Set the minimum percentage the fan should operate while in the event This provides ventilation f...

Page 7: ...peration The thermostat operates the cooling system to maintain the Set Room Cool temperature The fan turns on whenever the cooling system is on The cooling system has a fixed minimum on time of 2 minutes and a minimum off time of 5 minutes in order to prevent cooling equipment short cycling Adjust Menu 2 of 2 for installer use only ADJUST MENU After the last item the control returns to the first ...

Page 8: ...at being on even though the room temperature is above the set room temperature This is due to the Optimum Start feature heating the room in order to reach the temperature on time The Optimum Start applies for both the heating and the cooling systems When the mode is set to Auto Optimum Start prioritizes for the heating system Optimum Start 10P M 5A M 8A M Occ 70 F 21 C UnOcc 65 F 18 C Room Temp Re...

Page 9: ...to cool master 1 Off position Backlight The backlight turns on for 30 seconds once a button is pressed Warm Weather Shut Down The thermostat indicates warm weather shut down using the WWSD icon The WWSD feature prevents the heating system from operating if the outdoor temperature is above the WWSD temperature The WWSD feature is activated by the tN4 System Control In order to disable the WWSD the ...

Page 10: ...NE TEST On If not selected the thermostat display will show ZONE TEST OFF The Zone Test is only available on this thermostat when switch setting 4 is set to hydronic Max Heat The installer can use the tN4 System Control to turn on all heating zones and at the same time operate the heating equipment at 100 output within temperature limits The thermostat operates at the temperature setting 5 F 3 C T...

Page 11: ... The device count must be lowered to 24 or less If possible move devices to other tN4 busses Error clears automatically once the number of devices on the tN4 bus is at 24 or lower ADDRESS ERROR This thermostat and another device have been manually given the same tN4 address Error clears automatically once this thermostat is given a new manually set address or if the thermostat is set to automatic ...

Page 12: ...pplies only to those defective Products returned to kanmor during the war ranty period This Limited Warranty does not cover the cost of the parts or labor to remove or transport the defec tive 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 Prod...

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