Tekmar 157 Difference Setpoint Control Manual do Utilizador Página 1

1 of 16 © 2010 D 157 - 06/10D 15706/10- Data BrochureDifference Setpoint Control 157The Difference Setpoint Control 157 is designed to operate

© 2010 D 157 - 06/10 10 of 16 Item%12DIP Switch SettingsControl SettingsDemand: Enable / DisableThe Enable / Disable DIP switch is used to select

11 of 16 © 2010 D 157 - 06/10Item Field Range Description -99 to 300°F(-73 to 149°C)DELTA TCurrent temperature difference between the sou

© 2010 D 157 - 06/10 12 of 16 Item Field Range Description-30 to 300°F(-34 to 149°C)AUXILIARY MINIMUMMinimum auxiliary temperature since this ite

13 of 16 © 2010 D 157 - 06/10Item Field Range Description Actual Setting2 to 45°F(1 to 25°C)Default = 10°F(5.5°C)MAXIMUM STORAGE DIFFEREN

© 2010 D 157 - 06/10 14 of 16 Item Field Range Description Actual Setting0% to 100%Default = 0%MINIMUM OUTPUT, %Minimum pump speed for the variab

15 of 16 © 2010 D 157 - 06/10Error MessagesEEPROM READ ERRORThe control was unable to read a piece of information from its EEPROM. This e

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 Fax

© 2010 D 157 - 06/10 2 of 16 How to Use the Data BrochureTable of Contents This brochure is organized into three main sections.They are: 1) Sequ

3 of 16 © 2010 D 157 - 06/10DisplayΔTDelta TDisplays the temperature difference between the source and storage sensors.SOURCESourceDispla

© 2010 D 157 - 06/10 4 of 16 Sequence of OperationSection A – GeneralPowering Up The ControlWhen the Difference Setpoint Control 157 is powered u

5 of 16 © 2010 D 157 - 06/10Mode 3 Heat Dump is for applications where an alternative heat sink can be utilized when the storage tank and

© 2010 D 157 - 06/10 6 of 16 MAXIMUM STORAGE TARGETIf the storage temperature rises above the maximum storage target, the variable speed pump is

7 of 16 © 2010 D 157 - 06/10MINIMUM OUTPUT, %This item selects the minimum speed the variable speed pump will run in order to avoid unwan

© 2010 D 157 - 06/10 8 of 16 Improper installation and operation of this control could result in damage to the equipment and possibly even person

9 of 16 © 2010 D 157 - 06/10Test the Power SupplyMake sure exposed wires and bare terminals are not in contact with other wires or ground