DriSteem Vapor-logic3 Operations Instructions Page 1

Read and save these instructions!VAPOR-LOGIC®3 Installation and operation manualMicroprocessor-based humidifier control system

8Program code nomenclature.Product overviewProduct overview:Program code nomenclatureProgram code explainedA 14-digit VAPOR-LOGIC®3 program code appea

9Program code nomenclature.Product overviewProduct overview:Program code nomenclatureProgram code exampleA. EnglishB. VAPORMIST®C. One-tank systemD. S

10DRI-STEEM Humidifier Company (“DRI-STEEM”)warrants to the original user that its products will befree from defects in materials and workmanship for

11Installation checklist.InstallationBefore installing your VAPOR-LOGIC®3 controlsystem, review this checklist to ensure properinstallation of the pro

12Proper wiring procedures.InstallationProper wiring prevents electrical noiseElectrical noise can produce undesirable effects onelectronic control ci

13Figure 13-1: Probe wiringBrown (full) top probe rod Level AOrange (refill) middle probe rod Level BViolet (low water) bottom probe rod Level Cor DI

14Control cabinet installation and wiring.InstallationInstallation:Control cabinet installation and wiringThe VAPOR-LOGIC®3 control board is shippedmo

15Keypad/display installation.InstallationInstallation:Keypad/display installationInstalling modular cable IMPORTANT: When routing modular cable

16Sensing devices and humidity control.InstallationImportant to properly place sensing devicesHumidity sensing devices must be properly placed toachie

17System Diagram.InstallationInstallation:Component placementFigure 17-1: System diagramOM-3007ULTRA-SORB®dispersion unitVAPORSTREAM®VLC humidifierLin

PLEASE: read this manual!This manual will guide you through installation,operation and maintenance procedures for your newVAPOR-LOGIC®3 microprocesso

18Temperature compensation transmitterlocated on lower corner of the insidesurface of double pane window glassBANorth or northeastfacing windowBABC(Ai

1912 mA - 4 .16Wiring of sensing devices.InstallationWiring on-off humidistatsDRI-STEEM provides three types of on-off controls:wall-mounted humidista

20Figure 20-1: Example of proper shielding techniques whenconnecting humidity or temperature devices to VAPOR-LOGIC®3 control inputsIMPORTANT: Consult

21InstallationWiring VAV sensing device.Variable air volume (VAV) optionThis option is identified as a “V” in the third-from-lastplace of your program

22Figure 22-1: Temperature compensationtransmitter placementDoublepanewindowglassSecure temperaturesensor tip to insidesurface of window glassusing cl

23Changing control inputVAPOR-LOGIC®3 has the ability to accept differenttypes of demand signals from either an energymanagement system or a humidista

24Start-up checklist.OperationNote:Your humidification system may not have allof the options listed below. If an item does notappear, skip to the next

25Start-up checklist (cont.).OperationOperation:Start-up checklist Confirm that all wiring is correct per the wiringdiagram. Confirm that proper gro

26Components of the keypad/displayThe VAPOR-LOGIC®3 keypad/display consists of(see Figure 26-1 below):• A 128 x 64-pixel backlit LCD display• A power

27Main Menu1) StatusSoft key) Main – Returns to the Main Menu screenSoft key) Back – Scrolls to the previous Status itemSoft key) Next – Scrolls t

1Product overviewProduct overview:Summary of featuresVAPOR-LOGIC®3 features overview.Accurate, responsivemicroprocessor controlOur newest controller,

28“Set Up” menu information.OperationOperation:“Set Up” menu information“Set Up” menu “Set Up” menu Range Defaultreadout descriptionRH Set point Relat

29Readout displayed DescriptionFilling The unit is filling with water.Skimming The unit has completed a fill cycle and is now skimming.Draining The un

30Main menu: 1) Status.OperationStatusThe Status screen is used to view some of theoperating parameters of the humidification system.Some of the para

31Main menu: 2) Control Modes.OperationControl ModesIn the Control Modes screen, the operational mode ofthe humidifier can be set. You may choose fro

32OperationAlarmsThe Alarms screen is used to view the alarm log. Usethe vertical arrow keys to scroll through the alarmlog. The alarm log contains a

33OperationSet UpIn the Set Up screen, the operational parameters ofthe humidifier can be set. Depending on systemoptions, parameters available may in

34OperationDiagnosticsThe Diagnostics screen enables you to troubleshootsome of the hardware input and output points of theVAPOR-LOGIC®3 control syste

35OperationReportsThe Reports screen is useful for viewing historicalinformation about your humidifier. In this section,you are able to view the amoun

36Idle ScreenThe Idle screen allows you to monitor thehumidifier’s basic operation. Depending on systemoptions, you may view system set point, the act

37On-off controlOn-off control is the simplest control scheme, anddoes exactly what its name implies: the output deviceturns fully on, then fully off.

2Summary of features• PID control provides the most accurate,responsive and adjustable relative humidity(RH) control.• Self-diagnostic test at start-u

38TP modulationThe standard form of modulation with an electrichumidifier is TP (time-proportioning) modulation.With this type of modulation, the outp

39There are two basic types of SSR modulation: SSRmodulation with contactors, and 100% SSRmodulation.SSR modulation with contactorsWith SSR modulation

40STS®, LTS® and ULTRA-FOG® valve modulationWith a valve system, the modulation is very simple.The demand signal simply determines how far thevalve

41Adjust set point through Set Up menuSet point adjustments are accomplished through theSet Up menu, which is under the Main Menu (refer tothe menu st

42Tune your system with PID loopWhen your unit is equipped with a humidity or dewpoint transmitter (when you are able to adjust the setpoint through t

43second the demand is updated. With an integral gainterm greater than zero and an actual humidity belowset point, each time the demand is updated it

44VAV controlWith VAV control, the system is equipped with a ducthigh limit transmitter. This transmitter sends a signalback to the VAPOR-LOGIC®3 cont

45Aquastat operationThe aquastat set point is the minimum tanktemperature the VAPOR-LOGIC®3 controller shouldmaintain. It is adjusted through the Set

46Operation:Conductivity probeWater level control: conductivity probe.OperationProbe systemStandard water systems use a conductivity probe tocontrol w

47Operation:Float valveWater level control: float valve.OperationFloat valve systemDI/RO water systems (except for ULTRA-FOG®) usea float valve system

3Figure 3-1: VAPOR-LOGIC3 printed circuit boardProduct overviewVAPOR-LOGIC®3 circuit board.To expansionboard (ribboncable)R=Resistive inputI=Current

48Drain and flush optionsVAPOR-LOGIC®3 is preprogrammed to enter anautomatic drain, flush and refill cycle to help keepmineral concentrations in the t

49Service interval, EOS, date set.OperationOperation:Service interval, EOS, date setService intervalThe VAPOR-LOGIC®3 controller keeps track of howmuc

50Operation:Fill timer, over-temp faultSafety features.OperationFill timerThe VAPOR-LOGIC®3 controller keeps track ofapproximately how much water, in

51Fault messages, diagnostics.OperationOperation:Fault messages, diagnosticsAlarms screenThe Alarms screen on the keypad/display logs thelast ten alar

52Humidifier faultsThe following is a list of humidifier faults that canoccur. Please note that this is a complete list of faults.Your system may not

53Reports, multiple tank systems.OperationOperation:Reports, multiple tank systemsEnergy usage reportThe energy usage report gives an approximate tota

54OperationOperation:Troubleshooting introductionTroubleshooting 1, 2, 3.1.Review troubleshooting indexIf you find that you are having a control-relat

55Index to troubleshooting guide.The following is an index to possible control-related problems described on the following pages. To findsolutions, re

56 No control voltagepresent Heater fuses open Transformersecondary circuitbreaker tripped Field wiring notinstalled Field-supplied remotefault i

57 Open, shorted, orincorrect wiring ofhumidistat Signal by others isincorrect, out ofrange, or miswired. Control signal byothers has exceededthe r

4VAPOR-LOGIC®3 main control board connectionsJ1 Wire terminal supplies 24 VAC to power theVAPOR-LOGIC3 control board.• Double terminal T1 – 24 VAC, 10

58OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action101112Drain faultLow water timer faultLL pro

59OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action13141516171819ML probe faultReplace probes f

60OperationTroubleshooting guide.ProblemnumberProblem Possible cause Action20212223Flue faultBurner # faultIgnitor # faultBlower # fault The combusti

61OperationTroubleshooting guide.ProblemnumberProblem Possible cause Action242526Slave # faultControl does notenergize.Unit does not fill withwater.

62OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action26Unit does not fill withwater (cont.). Uni

63OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action27 Fill valve does notclose. Open drain val

64OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action2728Fill valve does notclose (cont.).Reduced

65OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action2930Fill valve cycles on andoff frequently (

66OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action31 Noisy operation  Thunder-typenoise com

67OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action32 Humidity belowdesired level Unit operati

5Main control board connections (cont.)Important note about J17, J18 and J19:All connection diagrams show connector shuntson J17, J18 and J19. The con

68OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action3233Humidity belowdesired level(cont.)Humidi

69OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action3334Humidity above setpoint (cont.)Hunting(h

70OperationOperation:Troubleshooting guideTroubleshooting guide.ProblemnumberProblem Possible cause Action System may not haveautomatic drainsystem

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73Printed on recycled paper with agribased inksPrinted on recycled paper.Minimum 10% Post Consumer Waste.Continuous product improvement is a policy of

6Main control board connections (cont.)J23 Wire terminal connection provides opticallyisolated connection to air flow proving switchand safety circuit

7Product overviewExpansion board connections.Product overview:Expansion board connectionsGTS® and VAPORSTREAM® expansion boardconnectionsJ1 1/4"