Tekmar 270 Boiler Control Manual do Utilizador Página 1

- Data BrochureBoiler Control 270D 27008/10 1 of 24 © 2010 D 270 - 08/10The tekmar Boiler Control 270 can control the supply water temperat

© 2010 D 270 - 08/10 10 of 24 Fancoil (3)A fancoil terminal unit or Air Handling Unit (AHU) consists of a hydronic heating coil and either a

11 of 24 © 2010 D 270 - 08/10DHW Mode 1 - DHW in Parallel no PriorityWhen a DHW Demand is present, the DHW Pmp / Vlv contact (terminals

© 2010 D 270 - 08/10 12 of 24 DHW MODE 2 OPERATIONOn a call for DHW, the control provides DHW priority by shutting off the primary pump (Pri

13 of 24 © 2010 D 270 - 08/10DHW MODE 4 OPERATIONIn DHW MODE 4, the space heating zones must be prevented from coming on during DHW deman

© 2010 D 270 - 08/10 14 of 24 56115 V (ac)LNPowerLN12BoilDemComDem24 to 230 V (ac)NL23ComDemDHWDem24 to 230 V (ac)NLL115 V (ac)NPrimP1PowerL

15 of 24 © 2010 D 270 - 08/10Modulation OutputThe Modulation Output terminals (11 and 12) provide a 0 to 10 V (dc) or a 2 to 10 V (dc) ou

© 2010 D 270 - 08/10 16 of 24 Test The Power SupplyMake sure exposed wires and bare terminals are not in contact with other wires or ground

17 of 24 © 2010 D 270 - 08/10CONNECTING THE CONTROLMake sure all power to the devices and terminal blocks is off, and remove any remainin

© 2010 D 270 - 08/10 18 of 24 View Menu (1 of 1)Outdoor Current outdoor air temperature as measured by the outdoor sensor.-76 to 149°F(-60 t

19 of 24 © 2010 D 270 - 08/10Adjust Menu (1 of 2)Room Occupied The desired room air temperature during the occupied period. 35 to 100°F(2

© 2010 D 270 - 08/10 2 of 24 How To Use The Data BrochureUser InterfaceTable of ContentsDIP Switch Settings ...

© 2010 D 270 - 08/10 20 of 24 Adjust Menu (2 of 2)DisplayDescriptionRangeSectionInstallerAdvancedActualSettingB3Boiler Modulation Selects ei

21 of 24 © 2010 D 270 - 08/10The control has a built-in test routine that is used to test the main control functions. The control continu

© 2010 D 270 - 08/10 22 of 24 MAX HEATThe control has a function called Max Heat. In this mode, the control turns on and operates the system

23 of 24 © 2010 D 270 - 08/10Error Messages (1 of 1)E01The control was unable to read a piece of information stored in its memory. Becaus

Technical Data 24 of 24Product design, software and literature are Copyright © 2010 by:tekmar Control Systems Ltd. and tekmar Control Systems, Inc.Al

3 of 24 © 2010 D 270 - 08/10DisplaySymbol DescriptionBoiler DemandDHW DemandModulationDHW Priority OverrideMenu FieldDisplays thecurrent

© 2010 D 270 - 08/10 4 of 24 Section AGeneralOperationPage 4 - 5Section BBoilerOperationPage 5 - 7Section CPumpOperation Page 8The following defi

5 of 24 © 2010 D 270 - 08/10EXERCISINGThe control has a built-in exercising feature that is selected through the Exercise / Off DIP switc

© 2010 D 270 - 08/10 6 of 24 The Motor Speed is the amount of time the boiler requires to go from 0% modulation to 100% modulation.Gas valve actu

7 of 24 © 2010 D 270 - 08/10To calculate the Maximum Modulation, use the following formula:For 0 to 10 V (dc):Maximum Modulation = 0 V (d

© 2010 D 270 - 08/10 8 of 24 Section C: Pump OperationPRIMARY PUMP OPERATIONSection D: Boiler Reset OperationBOILER DEMANDA boiler demand is requ

9 of 24 © 2010 D 270 - 08/10BOIL MAXBOIL DSGNOUT DSGNROOM OCCROOM UNOCC210(99)190(88)170(77)150(66)130(54)110(43)90(32)70(2 50°F(10°C)-