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tekmarNet

®

2 Thermostat 528

Installation & Operation Manual

D528

12/11

Zoning

Replaces:08/10

1 of 24

© 2011 

  D 528 - 12/11

The tekmarNet

®

2 Thermostat 528 

provides operation for:

One Stage Heat

Introduction

Features

Zone Synchronization
Zone Post Purge
Intelligent Setback (Timer 033)
One touch overrides (User Switch)
Auto Heating Cycle
tN2 Communication compatible
Room temperature limiting
Requires 2 Wires
Pulse Width Modulation
CSA C US Approved for use in 
USA and Canada
Outdoor Temperature Display
Air Group Member
Backlight
Freeze Protection
Equipment Exercising
Floor Warming (Slab Sensor 079)
1 Auxiliary Sensor input
Supports Radiant Floor Cooling

















Note

tN2 Zone Manager, Expansion 
Module, Wiring Center or House 
Control required for operation

tN2 Zone Manager, Expansion 
Module, Wiring Center or House 
Control required for operation

Summary of Contents for D528

Page 1: ...ating Cycle tN2 Communication compatible Room temperature limiting Requires 2 Wires Pulse Width Modulation CSA C US Approved for use in USA and Canada Outdoor Temperature Display Air Group Member Back...

Page 2: ...ng the Thermostat Wiring 5 Mounting the Thermostat 5 Cleaning the Thermostat 6 Switch Settings 6 User Interface 7 Display 7 Button Operation 7 Symbols Description 7 Settings 8 14 Sequence of Operation...

Page 3: ...f wire is 1000 feet 300 m Strip wire to 3 8 10 mm for all terminal connections Use standard 18 AWG wire for the tN2 connections Installation Location Removing The Thermostat Base Push tab 1 Remove the...

Page 4: ...mmunication are provided to the thermostat by connecting the tN2 terminals on the thermostat to the tN2 terminals on a tN2 Wiring Center House Control Zone Manager or Expansion Module tN2 terminals ar...

Page 5: ...g 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 displ...

Page 6: ...setback schedule 2 ON SCENE The thermostat responds to changes in the scene system wide manual overrides Requires the installation of a User Switch 479 to use this feature OFF OFF The thermostat does...

Page 7: ...GROUP The air group is cooling Heating can start once the cooling is finished LOCK Locked to User access level CLOCK Operating on a programmable schedule tekmarNet Communication is present WARNING SYM...

Page 8: ...ler SET ROOM HEAT AWAY Set the room heating temperature while in the Away scene Continued on next page Press and hold down both the and buttons for 2 seconds to change from one step to the next Releas...

Page 9: ...ng in the Adjust menu is set to Off 40 to 122 F 4 5 to 50 0 C Default 65 F 18 5 C Installer User SET FLOOR HEAT Set the floor heating temperature while in the event Available when A slab sensor is ins...

Page 10: ...rge number with Software Version upper right corner and the thermostat address 40 to 95 F 4 5 to 35 0 C Default 85 F 29 5 C Installer MAXIMUM SET ROOM HEAT Set the maximum room heating limit while in...

Page 11: ...n AND A slab sensor is installed on the auxiliary sensor input AND Sensor setting in the Adjust menu is set to Floor Off 40 to 122 F Off 4 5 to 50 0 C Default Off Installer User SET FLOOR MINIMUM Set...

Page 12: ...liary sensor input AND Sensor setting in the Adjust menu is set to Floor 1 2 3 4 Default 1 Installer SCHEDULE Thermostat can follow schedule master 1 2 3 or 4 Available when Switch setting 1 is set to...

Page 13: ...e tekmarNet system Choose Synchronize when zone heated using a boiler Choose Auto when zone is non hydronic heating Available when No reset control on the tekmarNet system ADJUST ADJUST OFF 1 to 16 In...

Page 14: ...t control mixing Installer tekmarNet ADDRESS The address is shown in the large number field Auto is shown in the upper number field when using automatic addressing Press the or the button to manually...

Page 15: ...the thermostat is heating The heat can cycle on and off within 1 5 F 1 C of the Set Room Heat temperature Freeze Protection The thermostat operates the heat whenever the room or floor temperature fall...

Page 16: ...r the group This thermostat can be set to be a member of the air group When operating as an air group the air temperature readings of all the air group member thermostats are communicated to the air g...

Page 17: ...e Display Room Temperature Setting 1 or or Follows programmable schedule or operates at the occupied temperature 2 Away Away temperature 3 Unoccupied temperature Scenes System Override Section E When...

Page 18: ...il all settings have been reviewed PORT ERROR Thermostat has been connected to a tN2 Zone already in use by a 2 stage device A 2 stage device requires two tN2 ports to operate This device may be conne...

Page 19: ...ears automatically once this thermostat is given a new manually set address or if the thermostat is set to automatic addressing ROOM SENSOR SHORT CIRCUIT The built in air temperature sensor has a shor...

Page 20: ...r sensor fault is corrected FLOOR SENSOR OPEN CIRCUIT The auxiliary floor sensor has an open circuit Check for loose or damaged wires Locate and repair the problem as described in the Data Brochure D0...

Page 21: ...CIRCUIT The auxiliary room sensor has a short circuit Check for damaged wires Locate and repair the problem as described in the Data Brochure D 076 D077 or D084 Error clears after the auxiliary room...

Page 22: ...arly so that the room is comfortable at the scheduled time Pressing button does not increase temperature Flashing Max Installer can increase the Maximum Set Room Heat Flashing Floor Max Floor temperat...

Page 23: ...o 50 C RH max 80 up to 88 F 31 C decreasing linearly to 50 RH at 104 F 40 C Altitude 0 6560 feet 2000 m Installation Category II Pollution Category 2 Power supply Provided by tekmarNet 2 Control 1 3 V...

Page 24: ...s 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 ag...

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