Tekmar 362 Mixing Control Installation User Manual

1 of 36Copyright © D 362 -12/08The Mixing Control 362 is a microprocessor based control with two distinct operating modes.MODE —1— allows the control

10 of 36Copyright © D 362 -12/08tensile stressViewhr1%NOTE: When operating in the Snow Melting mode, the Reset Ratio / Characterized Heating Curve DIP

11 of 36Copyright © D 362 -12/0812MixDemand24 to 240 V (ac)Sequence, Section C2RUNNING TIME (RUN TIME) The running time is the length of time that the

12 of 36Copyright © D 362 -12/08879Increasing Slab Core TemperatureDecreasing Air TemperatureConstant slab surface temperaturesurfacetemperature = 35°

13 of 36Copyright © D 362 -12/08Section D1Boiler SupplySensorSection D2Boiler ReturnSensorSection D3No Boiler SensorSection D: Boiler Operation (Mode

14 of 36Copyright © D 362 -12/08Pointer OnBoil MINBoilWaterTemperatureBoil Min + 1/2 Boiler DifferentialBoil Min - 1/2 Boiler DifferentialBoil Max + 1

15 of 36Copyright © D 362 -12/08Section D2: Boiler Return SensorBOILER SENSOR ON THE RETURN (Boil SENS = RET) The boiler sensor should be located on

16 of 36Copyright © D 362 -12/0834NLPower120 V (ac)12MixDemand24 to 240 V (ac)34PowerMixPmp5120 V (ac)NLLN67BoilerTTTT89PwrMixOpnCls/Var10120 V (ac)LN

17 of 36Copyright © D 362 -12/0889PwrMixOpnCls /Var1024 or 120 V (ac)ComCR1718ComMixBoil1920Out1718ComMixBoil1920OutBoilersensor1718ComMixMixingsensor

18 of 36Copyright © D 362 -12/08ΩΩV1718ComMixBoil1920OutΩVV34NLPower108 to 132 V (ac)120 V (ac)45LPmpMixLN3NPowerΩVV12MixDemand20 to 260 V (ac)1415Com

19 of 36Copyright © D 362 -12/08678109PwrMixCls/VarBoilerOpnBoilerIf the boiler is connected to the Boiler terminals (6 and 7), make sure power to the

2 of 36Copyright © D 362 -12/08MenuItemMenuItemMenuItemHow To Use The Data BrochureThis brochure is organized into four main sections. They are: 1) Se

20 of 36Copyright © D 362 -12/08MiscNoneReset RatioSetbackCharacterizedHeating CurveDIP Switch SettingsThe DIP Switch settings on the control are very

21 of 36Copyright © D 362 -12/08Installation, Testing362 View Menu (1 of 1)Current outdoor air temperature as measured by the outdoorsensor. This is a

22 of 36Copyright © D 362 -12/08362 Adjust Menu (1 of 4)ActualSettingThe operating Mode for the control. MODE 1 isfor Heating. MODE 2 is for Snow Mel

23 of 36Copyright © D 362 -12/08362 Adjust Menu (2 of 4)ActualSetting• •The maximum length of morning boost.DIP switch = Characterized Heating CurveDI

24 of 36Copyright © D 362 - 12/08362 Adjust Menu (3 of 4)ActualSetting• •The time that the actuating motor requires tooperate from fully closed to ful

25 of 36Copyright © D 362 - 12/08362 Adjust Menu (4 of 4)ActualSetting•The maximum length of time that the mixing pumpcontinues to operate after the m

26 of 36Copyright © D 362 -12/08RTU View MenuItemMenuUnOcc 1°FViewHeatThe access level that is to be used by the control.DIP switch = Unlock• • •• • •

27 of 36Copyright © D 362 -12/08362 RTU Adjust Menu (1 of 1) RTU 062The desired room air temperature duringan Occupied period for the mixing zones.Not

28 of 36Copyright © D 362 -12/08Testnot testingtestingtesting pausedoffredredTesting the ControlThe Mixing Control 362 has a built in test routine whi

29 of 36Copyright © D 362 -12/08Establish theProblemUnderstand theSequence ofOperationUse the TestRoutineMenuItemMenuItemorStep 4- The Boiler contact

3 of 36Copyright © D 362 -12/08Mix DemandWWSDMinimumMaximumMeltingIdlingMenuItemNumber FieldDisplays the current valueof the selected item{ButtonsSele

30 of 36Copyright © D 362 -12/08Sketch thePiping in theSystemDocument theControlIsolate theProblemTest the ContactsVoltages &SensorsMonitor theSys

31 of 36Copyright © D 362 -12/08362 Monitor Menu (2 of 3)•• •• •The total number of hours the boiler has been firing since thisitem was last cleared.

32 of 36Copyright © D 362 -12/083 to 40 min, OFFdefault = OFFThis item is an adjustable warning. If either the boiler or mixingsupply temperature does

33 of 36Copyright © D 362 -12/08rorrE fo noitpircseDdeyalpsiD rorrEThe RTU was unable to read a piece of information stored in the Schedule menu. Beca

34 of 36Copyright © D 362 -12/08362 Error Messages (3 of 4)Error Displayed Description of ErrorThe control is no longer able to read the boiler sensor

35 of 36Copyright © D 362 -12/08362 Error Messages (4 of 4)The Remote Sensor 1 attached to the RTU is being read as an open circuit. The RTU will cont

°FViewOpenOperating Modes1Heating2 Snow melting4TestC USnot testingtestingtesting pausedoffredred215MixPmp7PwrMix913tN1/tN214Com1510K16UnOSw17Com

4 of 36Copyright © D 362 -12/08P1ORMixingP1ORMixingSequence of OperationSection AGeneralPage 4 - 5Section BMode 1:HeatingPage 5 - 9Section CMode 2:Sno

5 of 36Copyright © D 362 -12/08Section B1: General Mixing Operation (Mode —1—)12MixDemand24 to 240 V (ac)Section B2Alternate MixingDemandsSection B1G

6 of 36Copyright © D 362 -12/0870(21)90(32)110(43)130(54)150(66)170(77)190(88)Outdoor Air TemperatureSupply Water Temperature210(99)-20(-29)0(-18)20(-

7 of 36Copyright © D 362 -12/08HRF 1HRF 2COILCONVRADBASEROOM OCC & UNOCC (ROOM) (CHARACTERIZED HEATING CURVE)The ROOM is the desired room temperat

8 of 36Copyright © D 362 -12/081617ComUnOSwTimer SwitchUnOccSchdOvrUnOcc to OccBoostMix TRG (Occupied)Water TemperatureTimeBoost setting - 20 minutes

9 of 36Copyright © D 362 -12/08Section C1General SnowMeltingSection C2Snow MeltingEnable / DisableSection C3With Slab SensorSection C4Without SlabSens