DriSteem Vapor-logic 4 User manual

Vapor-logic®4
Humidifier Control System
Installation and
Operation Manual
Important: Read and save these instructions.

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Contents
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–11
Vapor-logic4 capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Humidificationsystemoverview ............................3
Operatingconditions ......................................3
Vapor-logic4 control board:
Three-dimensionalview................................4
Connectionpoints.....................................5
Usingthekeypad/display...................................6
UsingtheWebinterface....................................7
Pre-installationChecklistandinstructions ...................8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–33
Step1:Fieldwiring .......................................12
Step2:Setup.............................................24
Step3:Startup ...........................................33
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-85
Menusandscreens........................................34
Homescreen.........................................35
Statusscreen.........................................36
Diagnosticsscreen....................................39
Alarmsscreen........................................44
Setupscreen ......................................24,46
PIDtuning .............................................47
Waterlevelcontrol........................................51
Ducthighlimitoptions ...................................53
Temperaturesensor/transmitter............................54
Tankpreheating..........................................55
Aquastat .............................................55
Freezeprotection.........................................56
Fan-baseddispersionoperation ............................56
Sensoroffsets ............................................56
Automaticdrainsequence.................................57
Skimming .............................................58
Endofseasondraining....................................58
Serviceinterval...........................................59
Settingdateandtime .....................................59
Battery,nonvolatilememory...............................59
Security/password........................................60
Downloadinghistoricaldata...............................60
Databackupandrestore...................................60
Firmwareupdates ........................................61
Testoutputs,testrun......................................63
Modbus,BACnet,LonTalkinteroperability..................64
Multi-tankoperation......................................70
Troubleshooting........................................74
Replacementparts........................................86
Warranty .....................................Backcover
Appendices . . . . . . . . . . . . . A-1–A-4
Controlinputsignals..............A-1
Sensorplacement.................A-3
GTS model-specific default setup values
....................A-4

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Overview
Vapor-logic4 capabilities
Accurate, responsive control
Vapor-logic®, DRI-STEEM’s humidification
system controller, has been setting the standard
for exceptional functionality and accurate RH
control since 1992. The fourth generation
controller, Vapor-logic4, retains the qualities
that established the Vapor-logic reputation,
plus offers several new capabilities, including:
Web interface, a standard feature, enables remote,
simultaneous, secure access from anywhere, at any time.
Modbus®, BACnet®, and LonTalk® allow interoperability with
multiple building automation systems (BAS).
Up-time optimizer keeps humidifiers operating through system
faults, as long as safety conditions are met, minimizing production
down-time.
USB port on Vapor-logic4 allows easy firmware updates, and data
backup and restore capability.
PID control provides accurate, responsive, and adjustable relative
humidity control.
Real-time clock allows time-stamped alarm and message tracking,
and accurate drain and flush scheduling.
Tank temperature sensor, mounted on the evaporating chamber,
provides over-temperature protection, freeze protection, and tank
preheating, allowing rapid response to a call for humidity.
Auxiliary temperature sensor/transmitter allows temperature
compensation control to prevent window condensation, or air
temperature monitoring, such as in a duct.
Programmable outputs allow remote signaling or device
activation, and are easily configured during the setup process.
Multiple-humidifier control allows staged control of up to 16
humidifiers with one controller.
More capabilities on the next page ▶

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Overview
Use the
Vapor-logic4
keypad/display or the standard Web
interface, shown here, to control your
humidification system.
Insert a USB
flash drive into
the Vapor-logic4
board’s USB port
to perform
firmware
updates, or
to back up and
restore data.
Vapor-logic4 capabilities
Enhanced diagnostics include:
rTe st outputs function, using the keypad/display or Web interface
to verify component operation
rTest humidifier function, by simulating demand to validate
performance
rData collection of RH, air temperature, water use, energy use,
alarms, and service messages
Factory commissioning of humidifier and control board
guarantees a reliable, fast installation, minimizing field installation
requirements.
Preconfigured but easily changed. Just go into the Setup menu to
change a factory setting if, for example, a control signal changes.

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Overview
Humidification system overview
Figure 3-1:
Typical humidification system layout (GTS humidifier shown)
Vapor-logic4
keypad/display
Humidifier
OM-1220
Dispersion assembly
Every humidification system with a Vapor-logic4 controller has a keypad/display connection and an 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 DRI-STEEM humidifiers can have the keypad/display contained within a control cabinet or mounted remotely.
Connect a computer directly to the
Vapor-logic4 board, or through a
network, to use the Web interface
Operating conditions
The Vapor-logic4 main board and keypad/display must be operated
and stored within the limits listed below. Exceeding these limits
can result in poor display performance and/or damage to the unit.
Main board
Operating temperature: 32 °F to 158 °F (0 °C to 70 °C)
Storage temperate: -40 °F to 185 °F (-40 °C to 85 °C)
Operating humidity range: <95% noncondensing
Keypad/display
Operating temperature: 32 °F to 158 °F (0 °C to 70 °C)
Storage temperate: -22 °F to 176 °F (-30 °C to 80 °C)
Operating humidity range: <95% noncondensing
CAUTION! The keypad/display is not rated for plenum operation.

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Overview
Vapor-logic4 control board
The Vapor-logic4 control board is
mounted to the subpanel located inside
the humidifier control compartment or
cabinet.
Note: Control board is shown here
mounted on a GTS humidifier subpanel.
Location of control board on subpanel
will vary with humidifier type.
Vapor-logic4 control board
The photo above shows key components of the Vapor-logic4 control board. See the illustration on the next page for more detail.
Figure 4-1:
Vapor-logic4 control board
Power to board connection
Factory connection points
for drain, steam valve, etc.
USB connection
Field connection points for
transmitters, power vent, etc.
Field connection terminal labels
have a white border.
Optional LonTalk
module location
Ethernet connection
for computer
Keypad/display
connection
BACnet or Modbus
connection
Factory connection points
for water level control,
gas valves, etc.
DRI-STEEM RS485
connection
Figure 4-2:
Control board mounted on GTS subpanel

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Overview
Vapor-logic4 board connections
P9:
Ethernet connection to
laptop computer or network
P10:
Vapor-logic4 keypad/
display connection
Figure 5-1:
Vapor-logic4 control board connections
P4:
Isw = Interlock switch (24VAC input)
TT = Tank temp sensor (RTD input)
= Ground for tank temp sensor
AI2 = Analog input (0-10VDC typical)
P3:
GV1 = Gas valve 1 (24VAC input)
BT1 = Blower tach 1 (pulse tach input)
LW = Low water (24VAC input)
FPsw = Flue pressure switch
(24VAC input)
Notes:
*CAUTION! Programmable dry contact (P12) is rated for 10 Amp maximum; programmable triac (P16) is rated for 4 Amp maximum. Exceeding these
maximum ratings can cause the triac or relay components on the Vapor-logic4 board to fail.
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connections at all terminals.
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12 P13 P14 P15
P16
P17
P18
P19
SSR/BL Steam
Fill Drain
SDU
Triac PV/CA24VAC CAsw 24VAC PVsw
TS24VDC
DHL
24VDC 24VAC AFsw
N.O. C N.C.24VDC RH CT/I1CT/I2CT/I3CT/I4
Ethernet Display
GV1
AI2
Fieldbus 24VACTop Mid Low
BT1
LWFPsw
lsw
TT
GV2
BT2GV3
BT3
GV4
BT4
AI1
DSTEEM
SW1
Optional LonTalk®card location
P20
USB
P2:
Low = Low water probe
Mid = Mid water probe
Top = Top water probe
= Ground for water probe
P1:
24VAC = Power to board
= Ground for power return
P5:
GV2 = Gas valve 2 (24VAC input)
BT2 = Blower tach 2 (pulse tach input)
GV3 = Gas valve 3 (24VAC input)
BT3 = Blower tach 3 (pulse tach input)
P6:
GV4 = Gas valve 4 (24VAC input)
BT4 = Blower tach 4 (pulse tach input)
= Ground for AI
AI1 = Analog input (RTD input)
P7:
Fieldbus = Modbus or BACnet
(RS485)
P8:
DSTEEM = Multi-tank (RS485)
SW1:
RS485 termination for multi-tank
P19:
Steam = Steam or hot water valve
=Ground for blower and P16 triac
SSR/BL = SSR (electric systems)/or
Blower (gas systems)
P18: (all are triacs)
CT/I4= Contactor 4 (electric systems)/or
Ignition module 4 (gas systems)
CT/I3= Contactor 3/Ignition module 3
CT/I2= Contactor 2/Ignition module 2
P17: (all are triacs)
CT/I1= Contactor 1/Ignition module 1
Drain = Drain valve (24 VAC output)
Fill = Fill valve (24 VAC output)
P16: (all are triacs)
PV/CA = Power vent/combustion air
control signal (24 VAC output)
SDU = Space Distribution Unit
(24 VAC output)
Triac = Programmable output, 4AMP*
max. (Note: Connect ground at P19)
P15:
PVsw = Power vent switch (24VAC input)
24VAC = Power to power-vent switch
CAsw = Combust. air sw. (24VAC input)
24VAC = Power to combustion air switch
P14:
TS = Aux. temp. sensor or temp. comp.
sensor (4-20 mA input)
24VDC = Power to aux. temp. sensor or
temp. comp. sensor
P13:
AFsw = Airflow proving switch
(24VAC input)
24VAC = Power to airflow proving switch
DHL = Duct high limit switch/transm.
(4-20 mA input)
24VDC = Power to duct high limit switch
or transmitter
P12:
Programmable dry contact (10 AMP*max.)
N.C. = Normally closed
C = Common
N.O. = Normally open
P11:
= Ground for demand signal by others
RH = Space RH input (RH transmitter,
dew point transmitter, humidistat,
or demand signal by others input
(4-20 mA or 0-10VDC typical)
24VDC = Power to space RH sensor
LED-1 (power indicator)
LED-2

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Overview
Using the keypad/display
Figure 6-1:
Using the Vapor-logic4 keypad/display
Press Main softkey to
go to Main menu
Press Up
or Down
arrow to move
through menus
and screens Press
Enter
to select or
confirm
Alarm
label flashes
when there is a
system alarm
Fill icon
shows water level
status (see Page 35)
Typical Home screen
One of three softkeys;
functions vary by screen
Tank temperature
Tank status
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 arrow
keys to change value, press Enter
to confirm
Message
label becomes
highlighted when
there is a system
message
Change Mode from the Home
screen by pressing the Up or
Down arrow keys until Mode is
highlighted, press Enter, press Up
or Down arrow keys to change,
press Enter to confirm