DriSteem VAPOR-LOGIC Installation And Operation Manual
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DriSteem VAPOR-LOGIC Installation And Operation Manual

DriSteem VAPOR-LOGIC Installation And Operation Manual

Version 6 humidifier control system
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VAPOR-LOGIC
®
VERSION
Hu mi di fier C o ntr o l S y s te m
Installation and
Operation Manual
6

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Summary of Contents for DriSteem VAPOR-LOGIC

  • Page 1 READ AND SAVE THESE INSTRUCTIONS VAPOR-LOGIC ® VERSION Hu mi di fier C o ntr o l S y s te m Installation and Operation Manual...

  • Page 2: Table Of Contents

    Vapor-logic keypad/display . . . . . . . . . . . . . . . . . . .
  • Page 3 WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 4: Warnings And Cautions

    IOM, resulting in property damage, personal injury, or death . If the IOM is missing, go to www .dristeem .com to download a replacement . mc_071608_0910 Hot surfaces and hot water Steam humidification systems have extremely hot surfaces, and water in tanks, electrode cylinders, steam pipes, and dispersion assemblies can be as hot as 212 °F (100 °C) .

  • Page 5: Overview

    OVERVIEW Vapor-logic capabilities ACCURATE, RESPONSIVE CONTROL The Vapor-logic controller provides accurate, responsive RH control . PID control tunes the system for maximum performance . Modbus , BACnet , or LonTalk allow interoperability with multiple building ® ® ® automation systems . Modbus is standard, and BACnet or LonTalk are available options .
  • Page 6 Vapor-logic capabilities Enhanced diagnostics include: Insert a USB flash drive • Test outputs function using keypad/display or Web interface to verify into the Vapor-logic component operation board’s USB port to perform software • Test humidifier function using simulated demand to validate performance...

  • Page 7: Humidification System Overview

    Ethernet connection for connecting to a Web interface on a computer . A GTS humidifier is shown here, with keypad/display mounted on the cabinet . Other types of DriSteem humidifiers can have the keypad/display contained within a control cabinet or mounted remotely .

  • Page 8: Vapor-Logic Board

    BACnet or Modbus connection Connection pins for optional LonTalk module The photo above shows key components of the Vapor-logic control board . See the illustration on the next page for more detail . FIGURE 4-2: CONTROL BOARD MOUNTED ON GTS SUBPANEL...
  • Page 9 OVERVIEW Vapor-logic board: Connections FIGURE 5-1: VAPOR-LOGIC CONTROL BOARD CONNECTIONS P19: Steam = Steam or hot water valve/XT staging/ HPS VFD D4 , 21 VDC indicator = Ground for blower or steam valve SSR/BL = SSR (electric systems)/or blower (gas systems)

  • Page 10: Keypad/Display

    OVERVIEW Keypad/display FIGURE 6-1: USING THE VAPOR-LOGIC KEYPAD/DISPLAY Typical Home screen Change set point from the Home screen by pressing the Up or Down arrow keys until set point is highlighted (as shown here), press Enter, press Up or Down...

  • Page 11: Web Interface

    OVERVIEW Web interface FIGURE 7-1: USING THE VAPOR-LOGIC WEB INTERFACE (SETUP SCREEN SHOWN) Click on a tab label to move to another screen Click on CHANGE to change value Click here to view alarms To change value: Highlight value; Click here to type in new value;...

  • Page 12: Installation

    Pre-installation Checklist ☐ See Figure 8-1 for field terminal block locations . Note FIGURE 8-1: VAPOR-LOGIC CONTROL BOARD DETAIL that field wiring connection locations on the Vapor-logic Board detail showing white border board are surrounded with a white border .
  • Page 13 INSTALLATION Pre-installation Checklist FIGURE 9-1: VAPOR-LOGIC TERMINAL BLOCK DETAIL AND CONNECTION INSTRUCTIONS FPsw Top Mid Low 24VAC DSTEEM Fieldbus Tighten screw after wire is inserted . Maximum torque is Terminal block plug . 3 in-lb (0 .34 N-m) Make connections...

  • Page 14: Installation Process

    Vapor-logic board . INSTALLING VAPOR-LOGIC IS A THREE-STEP PROCESS: 1 . Connect field wiring from device to Vapor-logic board . See instructions beginning on Page 12 . Note that some connections listed here may not apply to your system .
  • Page 15 INSTALLATION Installation process • Communication connections – Vapor-logic keypad – Ethernet – Modbus – BACnet – LonTalk – Multiple-tank communication • Programmable triac and relay • Area-type, SDU dispersion fans, or steam blowers • Combustion air switch and power vent (GTS systems only) 2 .

  • Page 16: Step 1 - Field Wiring

    21vdc = Power to space RH sensor Humidistats provide either on-off control or modulating control . DriSteem RH = Space RH input (RH transmitter, dew point humidistats are powered by a 24 VDC supply provided by the Vapor-logic transmitter, humidistat, or demand signal control board .
  • Page 17 INSTALLATION Step 1 – Field wiring: Control input FIGURE 13-1: VAPOR-LOGIC CONTROL INPUT WIRING CONNECTIONS Signal by others 0-10 VDC 4-20 mA Vapor-logic Vapor-logic Input resistance 21VDC 21VDC 500 ohms Control panel Control panel 2-wire #18GA 2-wire #18GA shield GND lug...

  • Page 18: Control Input Signals

    Step 1 – Field wiring: Control input signals DriSteem offers three control options for all its humidification systems controlled by Vapor-logic: On-off control, demand signal control, and transmitter control . ON-OFF CONTROL On-off control—the simplest control scheme—does exactly what its name implies: the output device turns fully on, then fully off .
  • Page 19 Step 1 – Field wiring: Control input signals Calculation of transmitter % RH MODULATING DEMAND SIGNAL CONTROL With modulating demand signal control, a modulating humidistat or a building automation system sends a signal to the Vapor-logic (mA reading) – 4 mA x 100% % RH =...

  • Page 20: Limit Controls

    AFsw = Airflow proving switch (24 VAC input) If an enable signal is not being used, jumper the MASTER ENB terminal block plug at P20 or attach the included shunt to the two pin header at J402 . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 21 INSTALLATION Step 1 – Field wiring: Limit controls FIGURE 17-1: VAPOR-LOGIC LIMIT CONTROLS WIRING CONNECTIONS Note: An airflow switch must be used in any duct humidification application . If no airflow switch Air ow switch in a duct When using an SDU is used, install shunt at P13 (24VAC to AFSW) .
  • Page 22 . Auxiliary temperature readings are logged to the data log . TEMPERATURE COMPENSATION TRANSMITTER A temperature compensation transmitter allows Vapor-logic to reduce humidifier output on cold days, reducing window condensation . Mount the temperature compensation transmitter on the inside of an outside-wall window .

  • Page 23: Vapor-Logic Keypad/Display

    Vapor-logic board . To connect a Vapor-logic keypad/display to the Vapor-logic board, insert the male end of the provided cable into the Vapor-logic board at Terminal P10 (labeled Display) until you hear a click sound (see also the wiring diagram on the next page) .
  • Page 24 INSTALLATION Step 1 – Field wiring: Communication connections FIGURE 20-1: VAPOR-LOGIC COMMUNICATION WIRING CONNECTIONS PC or BACnet IP Ethernet connection J1001: Install jumper if multi-tank RJ11 cable system and controller is at end of communications link Vapor-logic keypad/display Previous BACnet...
  • Page 25 Terminal P9: 1 . Connect the Ethernet cable . Ethernet Insert the male end of an RJ45 Ethernet cable into the Vapor-logic board at P9 (labeled Ethernet; see Figure 21-1) until you hear a click sound . Insert FIGURE 21-2: the other end of the cable into a computer .
  • Page 26 IP address are different than the first three segments of the humidifier’s default IP (192 .168 .1 .xxx), you must change either your computer or Vapor-logic’s IP address such that they match each other . FIGURE 22-1: CHECKING YOUR IP ADDRESS 3 .
  • Page 27 Step 1 – Field wiring: Communication connections 4 . Connect to the humidifier . FIGURE 23-1: ENTERING THE IP ADDRESS a . Using a computer connected to the Vapor-logic board, open a Web browser such as Mozilla Firefox or Internet Explorer ®...

  • Page 28: Field Wiring

    Programmable relay maximum current Programmable relay (dry contact) (P12) is rated for 125 VAC, 3 AMP or 30 VDC, 3 AMP maximum . Exceeding this maximum rating can cause the relay component or the Vapor-logic board to fail . Terminal Terminal P16:...
  • Page 29 INSTALLATION Step 1 – Field wiring FIGURE 25-1: VAPOR-LOGIC PROGRAMMABLE RELAY WIRING CONNECTIONS FIGURE 25-2: TERMINAL P15 Vapor-logic relay #1 Vapor-logic relay #2 Normally open #1 Normally open #2 Common #1 Terminal Contacts rated 230 Common #2 VAC/3 AMP or 30...

  • Page 30: Sensor Placement

    F Not acceptable . Do not place sensors near windows, door passageways, or areas of stagnant airflow . G Best sensing location for a high-limit humidistat or humidity transmitter and airflow proving switch . mc_060508_0750 VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 31 Turning vanes DC-1084 Doorway Window Temperature compensation option: Place a temperature compensation sensor on the lower corner of the inside surface of double-pane window glass on north- or northeast- facing window . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 32: Step 2 - Setup

    To access the Setup menu on the keypad/display, press the Main softkey In p ut si g nal on the Vapor-logic keypad (see figure below) . Press the Down arrow on the Limit controls keypad until Setup is highlighted . Press Enter .

  • Page 33: Using The Web Interface

    Vapor-logic . See Page 21 for Web interface connection and IP address instructions . Follow the instructions below to complete the setup process . FIGURE 29-1: USING THE VAPOR-LOGIC WEB INTERFACE ( SETUP SCREEN SHOWN)
  • Page 34 Input signal RH transmitter Transmitter enabled RH set point RH offset PID tuning RH PID band DriSteem recommends using default values for offsets and PID settings when first setting up your humidifier . Proportional gain 1000 Integral gain 1000 Derivative gain...
  • Page 35 . Changing the water type setting without the required DI/RO enabled hardware changes can cause component failure, severe property damage, severe personal injury, or death . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 36 . Default value is based on tank and valve size . Select number of minutes for fill valve to remain Flush duration Model-specific Minutes open during flushing . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 37 Amount of time the water probe must be in or out of Probe debounce time Seconds water to change the water/no water state . Fill fault time Minutes Amount of fill time before an alarm will occur . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 38 Changing temperature sensor settings can require Remote temp sensor (not an XT menu item) component changes for system to operate correctly . Temp comp enabled Temp monitor enabled °F Temp sensor offset °C Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 39 Dry contact 1 or 2 125 VAC, 3 AMP or 30 VDC, 3 AMP maximum . Exceeding this maximum rating can cause the dry contact (relay) component or the Vapor-logic board to fail . A dry contact activates whenever there is an alarm, Default alarms which does not auto-clear .
  • Page 40 Display SI Security Require password Set password None 9999 Enter a four-digit password using numbers only . The number of inactivity minutes Vapor-logic remains Time-out Minutes in read-write mode before returning to read-only mode Capacity adjust Capacity calibration Changing the capacity calibration setting changes 100 .0...

  • Page 41: Step 3 - Startup

    . In a sequenced application, one control input signal is divided by Ethernet connection shown user-selectable settings among the humidifiers connected in sequence . See the Vapor-logic board connection points in Figure 37-1 . Connect Steam to RH connection...

  • Page 42: Using Menus And Screens

    • Setup or value . • Help FIGURE 38-2: USING THE VAPOR-LOGIC WEB INTERFACE (STATUS SCREEN SHOWN) Click on a tab label to move to another screen Click on CHANGE to change value . Note that most...

  • Page 43: Home Screen (Keypad/Display)

    SPACE RH SET PT 212˚ Vapor-logic returns to the Home screen on the keypad/display after a user- defined period of idleness . The Home screen displays the items most frequently OUTPUT viewed: Actual space RH or dew point, RH or dew point set point, tank/system...

  • Page 44: Status Screen

    TANK STATUS 2/24 A Mode Auto Space RH 34% RH MAIN HOME BACK TANK STATUS 3/24 A S p ace RH 34% RH RH set p oint 35% RH MAIN HOME BACK VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 45 Duct RH Duct HL switch Open Closed Duct HL set point Duct HL signal °F Tank temperature °C Tank temp signal 2200 Ohms °F Aux temperature °C Aux temp signal Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 46 GTS systems only Gas valve 2 Open Closed GTS systems only Gas valve 3 Open Closed GTS systems only Gas valve 4 Open Closed GTS systems only * Not an XT menu item VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 47 Water XT systems only Model Current 2 Right cylinder of 2-cylinder model, XT systems only dependent High water probe 2 No water Water Amps Right cylinder of 2-cylinder model, XT systems only VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 48: Diagnostics Screen

    Press the MESSAGE softkey, an operator, or auto-cleared by Vapor-logic . Active messages display or select Messages from the first in the Messages Log, followed by cleared messages, listed in order Diagnostics menu to view the Messages Log .
  • Page 49 OPERATION Diagnostics screen FIGURE 45-1: VAPOR-LOGIC WEB INTERFACE DIAGNOSTICS SCREEN Click on buttons to activate functions . View messages by clicking on “View Messages” on Clear messages any screen or by opening by clicking here . the Diagnostics screen .
  • Page 50 . Additional valves and software algorithms measure and control the water level for optimum operating efficiency . All water types and conductivities work with the universal water system . Vapor-logic automatically provides steady steam Pulse fill valve output while maintaining the water level between the bottom and middle probes .
  • Page 51 The humidifier is draining or has drained and remains inactive until receiving another call for EOS active humidity . Humidifier output has been reduced because temperature compensation sensor reads a temperature Temp comp on on the inside-pane of an outside-wall window that could cause condensation . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 52 • The Messages Log displays a maximum of 10 messages . Cleared messages leave the log first . • If a message event occurs and is not manually or auto cleared during unit operation, the message will stay there until there is demand and the unit is running . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 53: Alarms Screen

    AL AR M alarm name, date and time of occurrence, plus whether the alarm is active, has been cleared by an operator, or auto-cleared by Vapor-logic . The Alarms Log lists active alarms at the top of the list, followed by cleared Press the ALARM softkey alarms .
  • Page 54 (GTS systems only) Burner 1, 2, 3, or 4 fault Burner tried one or more times to light and did not succeed . Once this fault is active, Vapor-logic locks out (GTS systems only) the burner and does not try to light it again until fault is cleared . Other burners can run .
  • Page 55 The inlet water temperature is below 40 °F (4 °C) . The pump is shut off and the RO flush valve is (HPS systems only) opened until supply water is above 40 °F (4 °C) . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 56 • The Alarms Log displays maximum 30 alarms . Cleared alarms leave the log first . • If an alarm event occurs and is not manually cleared or auto-cleared during unit operation, the alarm will remain until there is demand and the unit is running . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 57: Status Led

    Status LED The Vapor-logic control board includes a diagnostic Status LED that shows multiple humidifier control conditions . The Status LED blinks in a 3-stage cycle over approximately four seconds . The Status LED is always “blinking” . It will be easy to see that the board is powered and operating because, at a minimum, it is running the Status LED .
  • Page 58 Auto mode: active fault preventing Keypad/display is not — unit from running communicating with controller Standby or test mode: unit will not Blue — No humidification demand present VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 59: Pid Tuning

    With a PID loop, you can tune your system for maximum performance using the also require a corresponding hardware change . Vapor-logic firmware will warn you of proportional (Kp), integral (Ki), and derivative (Kd) gain terms . this during the setup process .

  • Page 60: The Integral Term

    . In addition, the proportional term becomes negative and actually starts to subtract from the total system demand . These two terms work in conjunction with each other to bring the humidifier back to set point . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 61: The Derivative Term

    PID band . Small spaces where the humidification system can quickly influence the RH typically benefit from a larger PID band . Rarely should it be set to less than 10% . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 62: Pid Setup Tips

    . Then, modify the proportional gain slightly in the same direction the integral gain was changed . RH history data, available for download from the Diagnostics menu, can aid when doing PID loop tuning . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 63: Water Level Control

    Conversely, water must stay out of contact with the probe surface for three processes seconds for Vapor-logic to determine that the water is below the probe’s level . • Improper water softening processes This three-second delay ensures that turbulence does not cause an incorrect level reading .

  • Page 64: Float Valve System

    Chloride corrosion probe to sense water levels . Damage caused by chloride corrosion is not covered by your DriSteem The float valve system consists of a fill float and a low water cutoff float . warranty . Chloride corrosion can result from a...

  • Page 65: Electrode Steam Humidifiers

    Higher water levels cover more electrode surface and result in more steam; lower water levels cover less electrode surface and result in less steam . Since water conductivity and water level both correlate to steam output, DriSteem electrode humidifiers employ an algorithm that monitors conductivity and manages drain and fill events to optimize humidifier performance and provide proper steam output .

  • Page 66: Options And Features

    Vapor-logic . Vapor-logic assumes a 70 °F (21 °C) room temperature and uses the glass temperature and the RH in the space being controlled to calculate the dew point (°F or °C) for the space .

  • Page 67: Auxiliary Temperature Sensor Option

    . The transmitter provided with Vapor-logic is calibrated for –20 °F to 160 °F (–29 °C to 71 °C) with output from 4 to 20 mA . For example, a temperature reading of 70 °F (21 °C) should produce a measurement of 12 mA .

  • Page 68: Aquastat Set Point Feature

    FAN-BASED DISPERSION OPERATION If your humidifier is equipped with a Space Distribution Unit (SDU) or an Area-type fan, it is enabled after the Vapor-logic controller receives a call for humidity and the tank water is approaching boiling temperature . When the humidifier no longer receives a call for humidity, it stops heating and the SDU or Area-type fan continues to run for the time delay period (as defined in the fan-based dispersion section Setup menu) .

  • Page 69: Sensor Offsets

    AUTOMATIC DRAIN SEQUENCE, TAP/SOFTENED WATER (See note at right for XT humidifiers .) When configured to run a tap/softened water humidifier with an automatic drain valve, Vapor-logic uses an automatic drain sequence (ADS) to reduce mineral accumulation in the tank and drain line, which decreases tank maintenance .

  • Page 70: Draining When Using Softened Water

    . SERVICE INTERVAL The Vapor-logic controller tracks the amount of water converted to steam by the humidifier and the number of hours the humidifier runs . When the amount of steam or hours of run time exceeds the user-defined service interval (pounds, kilograms, or hours, adjusted in the Setup menu), “Service unit”...

  • Page 71: Setting Date And Time

    Options and features SETTING DATE AND TIME The Vapor-logic controller contains a real-time clock that is used for several features including the drain and flush sequence and alarm logging . If you need to reset the date or time, go to the Setup menu .

  • Page 72: Downloading Historical Data

    3 . Sort all rows by “Time” in ascending order . BACKING UP AND RESTORING DATA Vapor-logic data can be backed up to and restored from a USB flash drive . The backup file contains all information relative to the humidifier, including firmware, user settings, model number, serial number, and the configuration string .

  • Page 73: Firmware Updates

    Firmware updates To create a backup file: 1 . Insert a USB flash drive into the USB port on the Vapor-logic board . 2 . Go to Diagnostics/USB backup-restore/Back up settings 3 . Select Yes . The display will prompt you when backup is complete .
  • Page 74 Firmware updates Table 70-1: Downloading Vapor-logic firmware updates 1 . Click the link shown to the right on the Vapor-logic firmware updates page of www .dristeem .com . If a security window appears, click the Save button . Note: The screenshots in this table depict typical Internet Explorer screens in Windows XP .
  • Page 75 OPERATION Firmware updates Table 70-1: Downloading Vapor-logic firmware updates (continued) 6 . Click the Browse button in the WinZip Self-Extractor window, and select your USB flash drive as the target location . 7 . Click the Unzip button in the WinZip Self-Extractor window .

  • Page 76: Installing Firmware Updates

    4 . The update process begins immediately and takes up to 1 minute . Wait for the relay on the Vapor-logic board to begin clicking continuously . The water probe LEDs on the board will blink occasionally during the update process .

  • Page 77: Test Outputs And Test Run

    Test . TEST RUN Vapor-logic has a test run capability to confirm system functionality . This capability allows a technician to simulate a demand for steam production when there isn’t one (such as when performing routine maintenance) . To confirm functionality, go to the test run section of the Diagnostics menu .

  • Page 78: Modbus, Bacnet, Lontalk Interoperability

    2 . If connecting to a LonTalk system, connect the LON ProtoCessor module Bottom of LON per Step 3 in Figure 74-1 . ProtoCessor 3 . Disconnect power to the Vapor-logic board, wait 5 seconds, and reconnect module power . 4 . Set up communication with Vapor-logic using your Modbus, BACnet, or LonTalk network manager, referencing Table 75-1 .
  • Page 79 0 to Water_until_service AV-4 nvoWaterTilSrvc 30011 converted to steam before 2,200,000 1,000,000 next service cycle . * See Note 1 on Page 83 . ** See Note 2 on Page 83 . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 80 Pump runtime hours hours hours 30042 100000 100000 IR-43 0 to 0 to AI-27 nvoTDS 30043 1000 1000 IR-44 Active pump station HPS_pump_station_operating AI-28 nvoActPSnumber 0 to 4 0 to 4 30044 number Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 81 Duct high limit set Duct_high_limit_set_point Write AV-07 nviDuctHLsetPt 0 to 100 0 to 100 40004 point . * See Note 1 on Page 83 . ** See Note 2 on Page 83 . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 82 Pump_selected AV-19 nvoPumpSelect HPS systems only 0 = Pump 1; 1 = Pump 2 40021 * See Note 1 on Page 83 . ** See Note 2 on Page 83 . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 83 0 = Empty, OK to run; XV: Float switch BI-14 XV with VL only 10017 1 = Full * See Note 1 on Page 83 . ** See Note 2 on Page 83 . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 84 No combustion airflow BV-18 nvoAlrmNoCombAir DV-19 Blocked flue BV-19 nvoAlrmBlockdFlu DV-20 Burner 1 fault BV-20 nvoAlrmBurner1 * See Note 1 on Page 83 . ** See Note 2 on Page 83 . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 85 Current sensor out of range BV-51 nvoAlrmCurSense1 DV-52 Current sensor 2 out of range BV-52 nvoAlrmCurSense2 * See Note 1 on Page 83 . ** See Note 2 on Page 83 . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 86 XV: 2 position valve failure BV-69 to close while the valve was powered * See Note 1 on Page 83 . ** See Note 2 on Page 83 . Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 87 Modbus Holding Registers (HR1-HR21) 16 bit read/write Modbus Discrete Input Registers (DI1-DI7) single bit read only Modbus Coil Registers (DV1-DV69) single bit read/write 2 . nvi LonTalk SNVTs are write-only; nvo are read-only VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 88: Multiple-Tank Operation

    MULTI-TANK CONTROL INTERFACE Most systems have one Vapor-logic keypad per multi-tank group . This keypad ships with the tank that has the master control board . The keypad (or the Web interface; see note below) can be connected to any humidifier in the multi-tank group .

  • Page 89: Tank Grouping To Maximize Efficiency

    . If the master controller stops operating, the remaining slave tanks continue to run for a short time at the level they were last run, and then quit . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 90 4 . When calculating energy, consider heat loss from distribution and piping of steam . 5 . Humidifiers within a priority group are load leveled . 6 . Humidifiers within a group should have the same energy source . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 91: Wiring A Multi-Tank Group Of Humidifiers

    . On the last board in the series of connected boards, jumper the pins at J1001 (located on the Vapor-logic board next to the RJ11 phone socket, see Page 5) . On all other boards, J1001 should not be shunted .

  • Page 92: Changing A Priority Group

    C . . . P) . Duplicate tank designations will cause multi-tank mode to operate incorrectly . • Each Vapor-logic board ships with a network IP address of 192 .168 .1 .195 . When installing on an Ethernet network, assign each board a unique IP address to avoid conflict with other devices on the network .

  • Page 93: Using The Keypad/Display

    Tank A screen SPACE RH SET PT 116˚ Note here that Tank A has 0% output because it is not yet at boiling temperature . OUTPUT TANK A MODE:Auto Warm MAIN MESSAGE ALARM VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 94 . Important: All system tanks must be network-connected via Ethernet for these links to function . Click on the Setup tab to view Multi-tank setup parameters . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 95: Troubleshooting Guide

    If you have a tank-related or dispersion-related issue, you may also need to refer to those specific product manuals . 3 . If you’re still having issues, call DriSteem . If the troubleshooting guide does not help you solve your issue, call DriSteem with the following information available: •...
  • Page 96 • Check if at remote indicator light is burned out; No remote activation of fan replace if needed . • Remote fault Vapor-logic dry contact is not • Check dry contact continuity (Vapor-logic terminal switching P12) for contact closure .
  • Page 97 -- Calibrate transmitter or humidistat if necessary . • Isolation control board by others may not be compatible . Alarm: Consult DriSteem . Aux temp sens out of range • SDU blower or airflow proving switch is • Check SDU for proper wiring .
  • Page 98 • If conductivity is less than 30 µS/cm add ¼-½ tab sodium bicarbonate (i .e ., Alka Seltzer) to increase conductivity . Consult DriSteem for further advice . • Humidifier interlock switches and/or over- • Verify that switch or thermostat is wired .
  • Page 99 . • Excessive condensate is draining into the tank • Consult DriSteem to increase the amount of water that can be converted to steam before receiving a fault . For XT humidifiers, see Check cylinder / high water on Page 47 of Table 45-1 .
  • Page 100 • Clean or replace drain valve if an obstruction in the valve does not allow complete closure . • Close manual drain valve if it is open . • If Vapor-logic shorted output to fill valve coil, replace board or drain coil . • Malfunctioning level control system •...
  • Page 101 • Reduce demand signal . end-of-season drain • Vapor-logic setup • Verify in Setup menu Vapor-logic is set for end-of-season drain . • Drain valve • Valve not wired, or incorrectly wired, to control board . • Check 24 VAC across valve coil during test cycle .
  • Page 102 GTS, STS or LTS systems only: • Clean . • Dirty heat exchanger GTS systems only: • Clean or adjust as appropriate . See tank manual for instructions . • Dirty burners • Low gas pressure Continued VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 103 • Mineral buildup on heaters • The humidifier may be undersized . Increase humidifier capacity or replace with larger humidifier . Consult DriSteem . • Inspect tank for severe mineral buildup on or around heater . Increase skim duration, frequency of drain cycle, and/or frequency of cleaning .
  • Page 104 • Check if the heater over-temperature has been tripped . Reset if necessary . • Humidity control input type not the same as • Check Vapor-logic control board connections P11 and P13 . Vapor-logic firmware Consult DriSteem . • Vapor-logic not in Auto mode •...
  • Page 105 . point) • Check for proper Vapor-logic control settings: RH set point, high limit set point, cycle rate, PID tuning, etc . • Relocate poorly located control components . See “Sensor placement”...
  • Page 106 • Steam valve inoperable • Valve not opening fully . Check signal to valve . • Steam trap blocked • Trap not passing condensate . • Scale coated heat exchanger • Clean heat exchanger . VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 107: Replacement Parts

    Keypad/display (includes printed circuit board, LCD display screen, membrane switch, front and back of plastic 408495-011 cover) 27" (686 mm) 408490-014 Keypad/display communication cable (contact DriSteem for lengths other than 27" (686 mm) and 60" (1524 mm) 60" (1524 mm) 408490-009 Molex connector plug, 2-position 406246-002...
  • Page 108 OPERATION Replacement parts FIGURE 104-1: VAPOR-LOGIC REPLACEMENT PARTS Main board Keypad display Molex connector plug (2-position shown) LonTalk card VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 109 VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 110 VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...
  • Page 111 VAPOR-LOGIC VERSION 6 INSTALLATION AND OPERATION MANUAL ®...

  • Page 112: Warranty

    DriSteem in writing within the stated warranty period . Defective parts may be required to be returned to DriSteem . Excluded from the Limited Warranty are all consumable and wear and tear items such as cylinders, membranes, filters, or media replacements .

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