Tekmar 421 Mixing Reset Module Manual do Utilizador

D 42108/07- Data BrochureMixing Reset Module 4211 of 20 © 2007 D 421 - 08/07• • tN4 Compatible • • Outdoor Reset• • Single On-Off Boiler• • Powere

© 2007 D 421 - 08/07 10 of 20Zone TestIn Zone Test mode, each tN4 device is individually turned on one at a time. The control tests each zone for up t

11 of 20 © 2007 D 421 - 08/07tekmarNet®4 Communication Section AtekmarNet®4 (tN4) communicates between tN4 devices (thermostats, Reset Module and Exp

© 2007 D 421 - 08/07 12 of 20Terminal UnitThere is a terminal unit setting for each tN4 bus. The Terminal Unit setting is found in the Adjust menu.Hyd

13 of 20 © 2007 D 421 - 08/07Terminal Unit DefaultsWhen a terminal unit is selected, the control loads default values for the mix design, mix maximum

© 2007 D 421 - 08/07 14 of 20Boiler Temperature Control Section DDifferentialAn on / off heat source must be operated with a differential in order to

15 of 20 © 2007 D 421 - 08/07Boiler Enable Section EIf the 421 is one of many controls that can call for heat to a single boiler or there is a boiler

© 2007 D 421 - 08/07 16 of 20Error MessagesLocal Errors and Device ErrorsError messages are used to indicate a problem somewhere in the system. There

17 of 20 © 2007 D 421 - 08/07Error Message DescriptionADJUST ERRORThe control failed to read the Adjust menu settings, and reloaded the factory defaul

© 2007 D 421 - 08/07 18 of 20Error Message DescriptionBOILER SENSOR OPEN CIRCUITDue to an open circuit, the control failed to read the boiler sensor.

19 of 20 © 2007 D 421 - 08/07TroubleshootingSymptom Possible Causes Corrective ActionBoiler does not fire when there is a mix demand.Boiler contact is

© 2007 D 421 - 08/07 2 of 20Table of ContentsTable of Contents ...2Display and DIP Switches .

tekmar Control Systems Ltd., Canadatekmar Control Systems, Inc., U.S.A.Head Office: 5100 Silver Star RoadVernon, B.C. Canada V1B 3K4(250) 545-7749 Fa

3 of 20 © 2007 D 421 - 08/07Access LevelBoiler Sup / RetUse the Boiler Sensor Supply / Return DIP switch to select the location of the boiler sensor.

© 2007 D 421 - 08/07 4 of 20PUMPDisplays when the mixing pump is in operation.BURNERDisplays when the burner contact is closed.LOCKDisplays when the a

5 of 20 © 2007 D 421 - 08/07User InterfaceUse the User Interface available on the Liquid Crystal Display (LCD) to setup and monitor the operation of t

© 2007 D 421 - 08/07 6 of 20View Menu (1 of 1) Item Field Range Access Description-76 to 149°F(-60.0 to 65.0°C)InSAdOUTDOOR SECTION B Current outdoor

7 of 20 © 2007 D 421 - 08/07Item FieldRangeAccess Description-60 to 45°F(-51.0 to 7.0°C)Default = 10°F(-12.0°C)InSAdOUTDOOR DESIGN SECTION BThe desig

© 2007 D 421 - 08/07 8 of 20Item FieldRangeAccess Description30 to 230 secondsDefault = 105AdMIX MOTORThe time that the actuating motor requires to op

9 of 20 © 2007 D 421 - 08/07Item Field Range Access DescriptionInS (Installer)Ad (Advanced)InSAdACCESS LEVELThe access level that is to be used by the