Tekmar 268 Boiler Control Manual do Utilizador

- Data BrochureBoiler Control 268D 26811/10 1 of 32 © 2010 D 268 - 11/10The tekmar Boiler Control 268 can control the supply water temperature fro

© 2010 D 268 - 11/10 10 of 32 CHARACTERIZED HEATING CURVEThe control varies the supply water temperature based on the outdoor air temperature. The

11 of 32 © 2010 D 268 - 11/10 High Mass Radiant (1)This type of a hydronic radiant floor is embedded in either a thick concrete or gypsum pour.

© 2010 D 268 - 11/10 12 of 32 Section E1DHWSection E: Domestic Hot Water Operation Section E1: Domestic Hot Water (DHW)DHW DEMANDA DHW Demand is re

13 of 32 © 2010 D 268 - 11/10 CONDITIONAL DHW PRIORITYThe Conditional DHW Priority Override applies to DHW MODE 2 and 4. If the boiler supply te

© 2010 D 268 - 11/10 14 of 32 DHW MODE 2 OPERATIONOn a call for DHW, the control provides DHW priority by shutting off the primary pump (Prim P1) f

15 of 32 © 2010 D 268 - 11/10 Section F1SetpointSection F: Setpoint OperationSection F1: Setpoint7ComDem8Setp/DHW24 to 230 V (ac)Setpoint operat

© 2010 D 268 - 11/10 16 of 32 Section G1External InputEXTERNAL INPUTThe control can accept an external DC signal in place of the outdoor sensor. Th

17 of 32 © 2010 D 268 - 11/10 External Input Signal Conversion Tables CAUTIONImproper installation and operation of this control could result in

© 2010 D 268 - 11/10 18 of 32 Power must not be applied to any of the wires during the rough-in wiring stage.• All wires are to be stripped to a l

19 of 32 © 2010 D 268 - 11/10 Output ConnectionsPrimary Pump Contact (Prim P1)The Prim P1 output terminal (11) is a powered output. When the re

© 2010 D 268 - 11/10 2 of 32 The control uses a Liquid Crystal Display (LCD) as the method of supplying information. You use the LCD in order to se

© 2010 D 268 - 11/10 20 of 32 Setpoint DemandIf a setpoint demand is used, measure the voltage between the Setp / DHW and the Com Dem terminals (8

21 of 32 © 2010 D 268 - 11/10 1234Com–BoilRetOut+BoilSup500Ω0 - 10 V (dc) 0 - 20 mAORV9PowerLNPrimP11011LN1312C.A./AlertM24 to 230 V (ac)LNOR151

© 2010 D 268 - 11/10 22 of 32 The control’s exterior can be cleaned using a damp cloth. Moisten the cloth with water and wring out prior to wiping

23 of 32 © 2010 D 268 - 11/10 Rotate / OffThe Rotate / Off DIP switch selects whether or not the control is to provide Equal Run Time Rotation o

© 2010 D 268 - 11/10 24 of 32 View Menu (1 of 2) Outdoor - Current outdoor air temperature as measured by the outdoor sensor.This item is only ava

25 of 32 © 2010 D 268 - 11/10 Adjust Menu (1 of 4)D1Room Occupied - The desired room air temperature during the occupied period.This item is onl

© 2010 D 268 - 11/10 26 of 32 B1Boiler 2 - Selects whether or not boiler 2 is operational.This item is available in modes 1 to 7.Au (Auto), OFFDefa

27 of 32 © 2010 D 268 - 11/10 Adjust Menu (3 of 4)ABoiler Minimum - The minimum allowed boiler target temperature.OFF, 80 to 180°F(OFF, 27 to 82

© 2010 D 268 - 11/10 28 of 32 Adjust Menu (4 of 4)E1DHW Boilers Selects how many boilers are to be operated during DHW generation. (This item is on

29 of 32 © 2010 D 268 - 11/10 The control has a built-in test routine that is used to test the main control functions. The control continually m

3 of 32 © 2010 D 268 - 11/10 StageDisplays which stage relays are turned on.Primary PumpDisplays when the primary pump relay is turned on.Warnin

© 2010 D 268 - 11/10 30 of 32 The control was unable to read a piece of information stored in its memory. Because of this, the control was required

31 of 32 © 2010 D 268 - 11/10 Notes

32 of 32Product design, software and literature are Copyright © 2010 by:tekmar Control Systems Ltd. and tekmar Control Systems, Inc.All specificatio

© 2010 D 268 - 11/10 4 of 32 Section AGeneralOperationPage 4 - 6Section BStagingPage 6 - 8Section CPumpOperationPage 8 - 9Section DBoiler Reset(Sta

5 of 32 © 2010 D 268 - 11/10 SETBACK (UNOCCUPIED)To provide greater energy savings, the control has a setback feature. With setback, the supply

© 2010 D 268 - 11/10 6 of 32 RUNNING TIMESThe control displays the accumulated running time of each boiler in the VIEW menu. When using a multi-sta

7 of 32 © 2010 D 268 - 11/10 LO / HI OR LO / LOWhen using multi-stage boilers, a selection must be made regarding the staging order of the boile

© 2010 D 268 - 11/10 8 of 32 BOILER MASSThe BOIL MASS setting allows the installer to adjust the control to the thermal mass of the type of heat so

9 of 32 © 2010 D 268 - 11/10 Primary Pump PurgeAfter a demand is removed, the control continues to operate the primary pump for a period of time