Herrmidifier 6000 Series User manual

Engineered Humidification Systems
Herrmidifier®| www.herrmidifier-hvac.com
Herrtronic®6000 Series
Electrode Steam Humidiers
READ AND SAVE THESE INSTRUCTIONS

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
2www.herrmidifier-hvac.com
TABLE OF CONTENTS
SECTION I WARRANTY
Preface ...........................................................................................................................................................3
SECTION II UNIT OPERATION
Basic Operation..............................................................................................................................................4
Key Features ..................................................................................................................................................5
Engineering & Application...............................................................................................................................6
SECTION III INSTALLATION INSTRUCTIONS
Mounting.........................................................................................................................................................7
Plumbing.........................................................................................................................................................7
Steam Distribution ..........................................................................................................................................8
Wiring .............................................................................................................................................................9
Supply Power .................................................................................................................................................9
Control Circuit Connections............................................................................................................................9
SECTION IV OPERATING INSTRUCTIONS
Start-up Instructions .......................................................................................................................................10
Checklist.........................................................................................................................................................11
Maintenance...................................................................................................................................................12
SECTION V TROUBLESHOOTING GUIDE
Board Test Points ...........................................................................................................................................13
Unit Detected Faults: (Red Service Light On) ................................................................................................14
Non-fault Activated Problems ......................................................................................................................... 15
Blower Version Wiring Diagram (6000-1 & 6000-2)........................................................................................17
Blower Version Exploded View (6000-1 & 6000-2).........................................................................................18
Blower Version Parts List (6000-1 & 6000-2) .................................................................................................19
Ducted Version Wiring Diagram (6000-1 & 6000-2) .......................................................................................20
Ducted Version Exploded View (6000-1 & 6000-2) ........................................................................................21
Ducted Version Parts List (6000-1 & 6000-2)................................................................................................. 22
SECTION VI SUGGESTED SPECIFICATIONS
Suggested Specications ...............................................................................................................................23

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SECTION I WARRANTY
Warranty
1. Herrmidier warrants to the buyer or any user during the
duration of the Warranty that the humidier described
in this manual will be free from defects of material and
workmanship for a period of two (2) years from the date
of shipment.
2. For this Warranty to be effective, this humidier must be
installed, operated and maintained in accordance with
the Installation Instructions, Operations and Mainte-
nance Manual(s) supplied with the humidier.
3. In the event of a defect or malfunction in this product
during the Warranty Period, user may contact the Cus-
tomer Service Department or their Herrmidier Rep-
resentative for a Material Return Authorization (MRA)
number. Items tagged (on the outside of the box) with
this number may be returned to Herrmidier for replace-
ment. Incidental expenses such as cost of transporting
the humidier to Herrmidier or labor associated with re-
moval/replacement of the parts shall be paid by the user.
Upon completion of the reconditioning, the humidier will
be returned at no cost to the user. Items returned with-
out an MRA number will not be accepted!
4. Every 6000 series steam generating humidier contains
a plastic steam generating cylinder which is to be consid-
ered a routinely disposable part to be changed at regular
maintenance intervals at the user’s expense. This steam
generating cylinder is not covered by this Warranty. If,
after the installation of your 6000 humidier, you feel the
steam generating cylinder is not operating normally, you
should contact Herrmidier with an explanation of the
problem. However, in the continuing operation of the hu-
midier, replacements of this part are your responsibility
as part of routine maintenance.
5. This Warranty does not cover eld labor for repairs
to this humidier or any special, indirect or conse-
quential damages. Some states do not allow the ex-
clusion or limitation of incidental or consequential dam-
ages, so the above limitation may not apply to you.
6. If, after a reasonable number of attempts to do so, Her-
rmidier is unable to remedy any defects or malfunctions
in this humidier, then the user may elect either a re-
placement of such product or part which may be defec-
tive without charge or a refund of the buyer’s original
purchase price.
7. This Warranty gives you specic legal rights, and you
may also have other rights which vary from state to
state.
NOTE
Water quality plays a vital role in the performance and
maintenance requirement of any humidier. Adjust-
ments to the circuit board may be necessary based on
the incoming water quality. See pages: 13-16.
Performance problems associated with water quality
are not warranty issues!

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
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SECTION II UNIT OPERATION
Basic Operation
Controlled humidication requires a very precise control sys-
tem. The 6000 utilizes a solid state control to monitor perfor-
mance and maintain humidity. The humidier evaluates the
operation and alerts the operator to problem conditions and
prevents undesirable operation.
On initial start-up or a call for humidity, the humidier will at-
tempt to ll to its full load amp rating. The unit will not neces-
sarily have a full cylinder of water. Water level depends on
the conductivity of the water. The more conductive the water,
the more current that can be passed through the same vol-
ume of water.
If the water is not conductive enough to allow the unit to
reach full load amps (full capacity) on the initial ll, the cylin-
der full light will indicate a full cylinder condition. The unit will
operate in this mode with repetitive ll and boil cycles until
the unit has concentrated enough minerals in the water to
reach the rated amp level.
Once full load amp (FLA) has been reached, the ll valve will
shut off. The unit will now compare the rate of change of amp
draw to a time cycle.
If the water in the cylinder is mineral laden and hence very
conductive, a drain cycle will be initiated.
After the drain cycle and/or the time cycle is completed, the
unit will rell and start the process over.
These cycles will repeat until:
•The call for humidity is satised.
•The cylinder is used up.
•A fault condition occurs.
On initial start-up, if the water is not conductive enough for
the unit to reach FLA, the water will stop lling when the water
reaches the cylinder full electrode. Once the unit has entered
a cylinder full condition it will operate with ll and boil cycles
only. By eliminating the drain cycle, the water conductivity
will be increased by producing pure steam and leaving the
minerals behind. The increased mineral levels will raise the
conductivity allowing the humidier to draw sufcient amper-
age to achieve FLA. Normal operation will then commence.
As the electrodes in the cylinder are coated with minerals,
the water level will slowly increase to the cylinder full level.
Concentration will no longer allow the unit to reach FLA. Af-
ter a period of time, the unit will display the red “Service” light
indicating the need to change the cylinder.
Hours of Operation
1. 2. 3.
High Drain
Threshold
Capacity
Set Point
Low Drain
Threshold
Cylinder
Full
Steadily Increase
Water Level
Water Level Output

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Key Features
Adjustable Setpoints:
Capacity
• Range = 50-100%
• Preset at 100% for 6000-1,3,4
• Preset at 50% for 6000-2
Low Drain Threshold
• Range = 50-100%
• Preset at 90%
Cycle Time
• Range = 30-180 seconds
• Preset at 60 seconds
Faults:
Overcurrent
• 138% of Rated Current
• System Shutdown
Fill System
• Fill valve open for 6 hours without achieving capac-
ity setpoint or cylinder full
• System Shutdown
End of Cylinder Life
• 6 hours of operation while on cylinder full without
achieving capacity setpoint.
• System Shutdown
• Operation using water of less than 100 micromho
is not recommended.
• Typically 500-2000 hours of cylinder operation can
be obtained. Your actual cylinder life may be higher
or lower depending on the exact composition of
your water supply.
HERRMIDIFIER
POWER, CYLINDER FULL,
AND SERVICE INDICATOR LIGHTS
INTERNAL CIRCUIT BREAKER
ON/OFF/DRAIN SWITCH
COVER INTERLOCK SWITCH
(PREVENTS UNIT OPERATION
WITH COVER OFF)
FILL SYSTEM
(INTEGRAL 1" AIR GAP PREVENTS
REVERSE SIPHONING TO POTABLE
WATER SUPPLY; "ADJUSTABLE
METERING VALVE ACCOMODATES
WATER PRESSURES UP TO 100 PSI."
ISOLATED CONTROL COMPARTMENT
WITH SOLID STATE CONTROLS
DRAIN SYSTEM
(SEALED DRAIN VALVE, ADJUSTABLE
DRAIN THRESHOLD AND CYCLE
TIME PROVIDE EXTENDED LIFE.)
CYLINDER - REPLACEABLE
GLASS FILLED POLYPROPYLENE
"CYLINDER FULL" ELECTRODE
(RED WIRE)
ADJUSTABLE LOUVER
(6000-1, -2 UNIT)
INTEGRAL, QUIET
OPERATING FAN
(6000-1, -2 UNIT)
CONCEALED FILL AND
DRAIN CONNECTIONS
INTEGRAL HUMIDISTAT
(6000-1, -2 UNIT)

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
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Engineering and Application
The Herrmidier 6000 Series Steam Humidiers can be applied
in a variety of applications. The simplest application is to utilize
the model with the built-in blower package (6000-1,2). The
steam generated by the unit is distributed into the conditioned
space by the built-in blower package (Figure 1).
Alternatively, steam generated by the “6000” unit can be dis-
charged directly into the HVAC system ductwork (6000--3,4).
In this application, a steam pipe is preferably installed in the
system ductwork at least 5 feet downstream of the supply air
blower. There should be no obstructions within the rst 5 feet
downstream of the steam distributor as shown in Figure 2. An
air proving switch and high limit humidistat are provided for bet-
ter system control in ducted applications. If the heating system
Figure 1
Allowable Operating Conditions:
Ambient Temperature: 40°F (4°C) to 120°F (50°C)
Ambient Relative Humidity: 0% to 90% (non-condensing)
Line Voltage: -15% to +10% of Nominal
Frequency: 50/60 HZ.
Water Supply Pressure: 20psi – 100 psi.
Maximum Duct Static Pressure: 1” (6000-4)
operates for short periods at a time and the desired relative
humidity level is not achieved, the humidier can be wired to
turn on the blower when there is a call for humidity. In this case
an air proving switch will not be necessary, but the high limit
humidistat should still be utilized.
NOTE:
The steam distributor pipe is inherently sloped to return
the condensate to the humidier.
The steam piping from the humidier to the steam distribu-
tor should have an 8% slope (1” per foot) up to the steam
distributor. Steam hose may be used up to a maximum of 20
feet between the unit and the steam distributor. The hose
provided with the unit is 10 feet long. There can be no sags in
the steam hose, as this will create a trap and will produce back
pressure in the steam cylinder and may blow condensate in the
duct.
Figure 2
Note: Duct liner may be used
with a maximum
thickness of 1".
5 FEET MINIMUM
5 FEET MINIMUM
18 INCHES
MINIMUM
5 FEET MINIMUM

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SECTION III INSTALLATION INSTRUCTIONS
Mounting
The cabinet is designed to safely contain the working compo-
nents of the Herrmidier 6000 series humidier and dissipate
heat to protect the electronics. Locate humidier, steam pipe
and accessories in a manner to allow routine inspection and any
necessary maintenance. DO NOT install the unit above false
ceilings or around valuable property, where a malfunction could
cause damage. Correct positioning of the humidier is important
to allow for proper operation and easy maintenance. Minimum
clearance around the cabinet should be maintained as follows:
Minimum Clearances
Around Cabinet
Left 6”
Right 12”
Top 18”
Bottom 12”
Remove foam packing from top of tank.
Four lag bolts, (2) 5/16” and (2) 1/4”, are supplied with the 6000
unit. Install the top two lag bolts (5/16”) according to the dimen-
sions in Figure 3. Hang the unit on the wall, and then install the
bottom two lag bolts (1/4”) and secure all four bolts. Be sure the
unit is level and mounted directly to the wall to wood studs at
least 2” thick (or equivalent). Operating weights are as follows:
6000-1,2: 35 lbs.
6000-3,4: 35 lbs
Figure 3
WARNING!
Do not mount any controls inside the unit or tap power
from any location in the unit, except as stated in these
instructions. Do not place objects near the cabinet. Do
not attach to dry wall without studs. At least one 5/16”
and one 1/4” lag bolt must be located on a stud.
Plumbing
To make the necessary connections for water ll and drain, the
following steps are required: (refer to gure 4 for locations)
1. Install external shutoff valve between the water supply and
the humidier for ease in servicing the unit.
2. Connect water supply to the 1/4’ compression tting on the
bottom of the cabinet.
CAUTION!
Do not use reverse osmosis or demineralized water treat-
ment without rst consulting the factory. This water may
not be sufciently conductive to allow proper operation.
Consult factory if water is outside the range of allowable
conductivities. Do not use hot water.
3. Connect the 3/4” tube from the accessory pack to the drain
reservoir. Cut the tube to the length necessary to reach the
drain.
4. Insert the other end of the tube into a minimum 6” vertical
length of the 1-1/4” minimum I.D. drain line. The balance of
the drain line should be 1” I.D. minimum with a minimum
1/8” per foot slope. (See Figure 4)
WARNING!
If the drain line is exposed, it is recommended that it be
insulated for safety. Do not use PVC drain line unless
“Drain Tempering” is enabled (see page 10, step 10).
NOTE:
Inlet water pressure must be in the range of 20-100 psig.
Consult the factory if you are outside this range. Soft-
ened water may be used but requires that the low drain
threshold be adjusted (page 13). Drain water can be tem-
pered to lower its temperature (refer to page 10).
Figure 4
9" 1"
4 1/4"
16 1/2"
1/2" 1 1/2"
5/16 x 5/8 DIA.
KEYHOLE
MOUNTING SLOT
5/16" DIA.
Back View
DRAIN LINE TO BE 1" MIN. I.D. TERMINATING
AT THE UNIT WITH 6" OF 1 1/4" I.D. VERTICAL
PLUMBING.
THIS ALLOWS AN AIR GAP BETWEEN THE
1" O.D. DRAIN TUBE FROM THE UNIT AND
THE DRAIN.
UNIT HOUSING
BOTTOM COVER
FILL CONNECTION
3/4" I.D./1" MAX. O.D.
FLEXIBLE DRAIN HOSE
1/4" O.D. COPPER OR
POLY TUBE WATER FILL LINE
DRAIN RESERVOIR
1 1/4" I.D. COPPER
OR PVC DRAIN PIPE
1" I.D. COPPER
OR PVC DRAIN PIPE

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Installation, Operation, & Maintenance Manual
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Distributor Mounting Instructions
Sheetmetal Duct:
Make a 1-1/4” hole in the duct at desired location. Insert duct
distributor and secure with self tapping sheetmetal screws (sup-
plied by others).
Fiberboard Duct:
Make a 1-1/4” hole in the duct at desired location. Insert duct
distributor and mark the four holes on ange. Drill (4) ¼”- holes
at marked locations. Cut an access hole in duct and install the
enclosed tee nuts from the inside of the duct. Fasten distributor
with enclosed ¼” bolts.
Figure 6
Steam Distribution
Blower Version (6000-1,2)
The 6000 Series Steam Humidier with the built-in blower pack
should be mounted a minimum of 18” from the ceiling. There
should also be 5 feet of horizontal clearance in front of the unit
to prevent steam from condensing on obstructions (See Figure
1). There is an adjustable louver to adjust the direction of the
steam plume.
WARNING!
Do not adjust this louver to extreme angles as it will re-
strict the airow causing condensation to form around
the steam distribution manifold.
WARNING!
Locate away from areas where people can walk into the
steam path.
Ducted Version (6000-3,4)
Herrmidier supplies a stainless steel duct distributor for inject-
ing pure steam into the duct. This can be installed in the bottom
or the side of the duct (See Figure 5). When installing in the side
of the ductwork make sure it is positioned to allow condensate
to drain back down the steam hose. The duct distributor pipe
has a built-in pitch to allow condensate to drain back into the
hose. The hose must be installed with a minimum 8% (1” per
foot) pitch back to the humidier to allow condensate to drain
back to the steam cylinder (See Figures 5 & 6). A minimum of 5
feet downstream clearance before any bends or obstructions is
recommended for most applications (See Figure 2 ). However,
different psychrometric conditions may require greater or lesser
steam absorption distances. A minimum duct temperature of 60°
F is recommended. Temperatures below this may cause con-
densation to form in the duct. Lined duct may be used if the
thickness is 1” or less.
Figure 5
VERTICAL DUCT
HORIZONTAL DUCT
MIN. 8%
10.00 MIN.
(254 mm)
NO SAGS
ALLOWED
HORIZONTAL DUCT
INCORRECT
NO SAGS ALLOWED

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Wiring
All eld wiring should be routed up through the knockout in the
bottom panel or in the back of the unit.
Figure 7
Supply Power
1. Insure that minimum circuit ampacity is 15 amps.
2. Terminals are provided in the electrical compartment for
eld connection of the main power supply legs (single
phase) and a ground wire.
3. Install external overcurrent protection and provide wiring in
accordance with the NEC, state and local codes.
4. Power supply must be “clean”: free of spikes, surges and
sags: -15% to +10% of nominal.
Electrical Characteristics:
Capacity Steam Output
Lbs. / hr 4 8
Kg / hr 1.8 3.7
Input KW
1.33 2.66
Volts/Ph: Amps
120/1 11.8 N/A
230/1 5.9 11.8
Control Circuit Connections
WARNING!
Do Not install any controls inside the Herrmidier 6000
cabinet. Installations of any extraneous devices inside
the electrical compartment rnay cause erratic behavior of
the circuitry and will VOID the warranty.
6000-1,2
The 6000 units with built-in blowers require no external control
wiring since the humidistat is built-in.
6000-3,4
The control wiring for the ducted version is to be connected to
the 5 pole controls terminal strip located in the low voltage com-
partment. Terminals #1 and #2 are for connecting the control
and high limit humidistats as well as the air proving switch in se-
ries (all included). If desired, terminals #3 and #4 are relay con-
tacts to energize your fan relay (Relay contact rating 12 Amps
at 125 VAC, 8 Amps at 250 VAC). With this optional wiring, on a
call for humidity, the humidier will close the interlock relay and
energize the fan blower. The air proving switch must not be used
if the fan interlock is utilized. All control wiring should be 22 AWG
or larger (See gure 8). Consult with the factory if you have any
special wiring requirements.
Figure 8
BOTTOM VIEW
1 3/8"
3 3/4"
1"
1 1/2"
2" KNOCKOUT
7/8" KNOCKOUT
FAN
INTERLOCK
(OPTIONAL)
4
3
2
1
AIR-PROVING
SWITCH
HIGH LIMIT
HUMIDISTAT
NOTE: AIR PROVING SWITCH MUST NOT BE USED
WHEN INCORPORATING FAN INTERLOCK OPTION.
TERMINAL
STRIP
SWITCH

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SECTION IV OPERATING INSTRUCTIONS
Start-up Instructions
1. Check that the humidier is properly mounted and level.
2. Check that the water ll and drain are properly connected.
3. Check that the correct voltage and amperage service are
supplied.
4. Check all controls are wired properly.
5. Check that the steam distributor is properly installed and
that the steam hose has been properly routed without any
kinks or at spots.
6. With power off, double check all electrical connections and
plumbing connections to insure that they did not loosen dur-
ing shipment.
7. With the “on-off-drain” switch in the “off” position, and the
control and high limit (ducted versions only) humidistats
at their lowest settings, turn on the main disconnect. The
contactor should remain deenergized and the power light
should remain “off”. Place the “on-off-drain” switch in the
“on” position and the power light should illuminate.
8. Turn the control and high limit (ducted versions only) hu-
midistats up to their highest setting. The contactor should
pull in.
9. After approximately a 5 second delay, the ll valve ener-
gizes and water begins to ll the cylinder to the preset amp
level or cylinder full condition, depending on the incoming
water supply. When starting up the unit, it is best to put an
amp clamp on the power leg that passes through the
NOTE:
If upon initial start-up of this humidier the cylinder is
slow in heating and/or the service light continues to come
on, drain the tank to 1/4 full. Turn off power at breaker, ob-
tain some Alka-Seltzer tablets and crumble 1/2 of one tab-
let (Alka-Seltzer) into the grey ll tee. Change the middle
blue dial on the left side of the circuit board, R18, from
90% to 87%. Then turn the breaker on and run the unit. If
you have had to use these this step on a 240V unit (6000-
2,4), it is advisable that you order a GT-176-1 replacement
cylinder rather than the standard replacement cylinder in
the future so this procedure will not need to be repeated.
Upon receipt of the GT-176-1 cylinder, adjust the dial,
R18, on the circuit board back to 90%.
toroid transformer. Insure that the humidier lls to “cylinder
full” (approximately 1.5” from the top of the cylinder), or that
the amperage reaches the data plate maximum and the ll
valve de-energizes.
10. All units are equipped with a drain tempering feature which
mixes cold ll water with the hot drain water to protect drain
piping. Depending on your ll water pressure, some adjust-
ment of the ll metering valve may be necessary to insure
drain water of less than 140°F (See Figure 9). To deacti-
vate, remove diode from socket CRI8 from circuit board
(See Figure 12).
11. Reset control and high limit humidistats to their desired set-
tings. Typical control humidistat settings are 30-40% and
the high limit humidistat settings are 65-70%.
NOTE:
The capacity of the humidier can be adjusted between
50% and 100% of the maximum level by adjusting the
capacity adjustment potentiometer (labeled R39) on the
main circuit board. All blower versions are set from the
factory to produce 4 lbs/hr. If the psychrometric condi-
tions permit, the 6000—2 may be increased to 8 lbs/hr
by adjusting R39 from 50% to 100% capacity. Refer to
gure 12.
CAUTION!
Inadequate airow may allow humidity to collect in areas
causing condensation.
Figure 9
VIEW IN FROM RIGHTSIDE OF UNIT
TRANSFORMER
L1
L2
RELAY
TERMINAL BLOCK
FILL VALVE
MOUNTING SCREWS
FILL VALVE
ADJUSTING SCREW
CYLINDER FULL
INTERFACE

Herrtronic®Model 6000
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Installation Checklist
NOTE:
The Herrmidier 6000 Humidier checklist is provided to help the installer insure a successful installation. If further
assistance is needed from the Herrmidier representative or the factory, the checklist is expected to be completed. If a
jobsite visit is required from the Herrmidier representative or the factory, and the checklist has not been accurately com-
pleted, additional charges may be applied by the individual(s) representing Herrmidier. If the visit uncovers a compo-
nent malfunction, the parts will be replaced under warranty.
_____________________________________________ ____________________________________________
Project Name Checklist completed by
_____________________________________________ ____________________________________________
Humidier Installer (Company) Checklist completion date
DRAIN RESERVOIR
BALANCE OF DRAIN LINE TO BE 1" MIN. I.D.
DRAIN WATER TEMPERATURE IS SUITABLE FOR PLUMBING.
3/4" MIN. I.D./ 1" MAX. O.D.
FLEXIBLE DRAIN CONNECTION
6" MIN. LENGTH OF 1 1/4" MIN. I.D. VERTICAL COPPER LINE.
IF PVC IS USED, ADD DRAIN TEMPERING.
DURING FILL CYCLE, CHECK TO SEE IF ANY WATER
IS DRAINING FROM UNIT. A LOT OF WATER FLOWING
OUT OF THE UNIT WOULD INDICATE EXCESSIVE
WATER PRESSURE. TURN OFF POWER AND REDUCE
THROUGH METERING FILL SOLENOID OR SUPPLY
VALVE TO HUMIDIFIER. A SMALL AMOUNT OF WATER
IS NOT UNCOMMON.
MAKE SURE ALL HIGH VOLTAGE
ELECTRICAL CONNECTIONS ON
STEAM CYLINDER ARE TIGHT.
MAKE SURE LOUVER IS ADJUSTED TO
PREVENT STEAM FROM CONDENSING
ON COVER.
MAKE SURE ALL HIGH VOLTAGE
ELECTRICAL CONNECTIONS
ARE TIGHT, 10-15 IN-LBS.
POWER SUPPLY:
1. MATCHES DATA PLATE
2. IS PROPERLY GROUNDED
3. CAN CARRY AT LEAST 15 AMPS
4. EXTERNAL FUSED DISCONNECT
PROVIDED BY OTHERS.

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12 www.herrmidifier-hvac.com
Maintenance
To maintain output, the water level in the cylinder will slowly
move upwards, exposing new electrode to the water as the
electrodes become coated with minerals. Eventually, all of the
usable electrode surfaces will be coated and the cylinder will be
full of water. At this point, the output will begin to drop and the
red “service” light will come on. The unit will shutdown. This indi-
cates the need to change the cylinder, typically 500-2000 hours
of operation, depending on the quality of the ll water supply.
To replace the cylinder
1. Drain cylinder completely using the ‘on-off- drain” switch.
2. Turn off power to the unit at the external disconnect. Dis-
connect electrode power wires (#38 & #39) and cylinder full
electrode wire (#29) from the tank. These connections are
1/4” quick connects. (See Figure 11B, 11C, & 11D)
3. Disconnect 1” hose at top of tank.
4. Remove tank, clean out the drain cup and insert the
Figure 11A
Figure 11C
new tank. Be sure that “o” ring is in place on the cylinder ll/
drain port prior to installation (See Figure 11A). New o-ring
is included with each replacement cylinder.
5. Clean and check both the ll and drain valves while servic-
ing the unit.
6. Check the strainer. If it is dirty or restricting the water-re-
place it.
7. Install cylinder in unit by pushing downward with a slight
twisting motion, while ensuring proper orientation of tank
within cabinet.
8. Reconnect electrode power wires (#38 & #39) and cylinder
full electrode, wire (#29). Make sure that all electrical con-
nections are securely tightened. (See Figure 11B, 11C, &
11D)
9. Follow cold start-up instructions on page 10. Monitor amp
draw for several cycles. .
Extended Shutdown
Always drain cylinder completely if unit will be off for an extend-
ed period of time. This will preserve the life of the cylinder.
Figure 11B
Figure 11D
CYLINDER FILL/DRAIN PORT
POWER WIRE CONNECTIONS
ELECTRODE CONNECTION
CYLINDER FULL ELECTRODE CONNECTION
PROTECTIVE BOOT
(SHOWN TRANSPARENT FOR CLARITY)
(SHOWN TRANSPARENT FOR CLARITY)
PROTECTIVE BOOT
GROMMET
1/4" LOCK WASHER
RED POWER WIRE
1/4"-20 NUT 1/4"-20 NUT
BLACK POWER WIRE
1/4" LOCK WASHER
EST-1060-3
O-RING
1/4" MALE
QUICK CONNECT
1/4" MALE
QUICK CONNECT
CYLINDER FULL
ELECTRODE
WIRE #29
POWER
WIRE #39
POWER
WIRE #38

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
13
www.herrmidifier-hvac.com
SECTION V TROUBLESHOOTING GUIDE
All Herrmidier 6000 Series Humidiers are manufactured under
strict quality control and are subjected to a complete operational
test before shipment. All circuit board adjustments are made at
the factory and should not be adjusted beyond the guidelines
set in this troubleshooting guide without rst consulting a fac-
tory representative. The following information is for your help
and reference. If you still experience difculty after trying these
remedies, contact your Herrmidier representative.
WARNING!
The Herrmidier 6000 Series Electronic Steam Humidi-
er cabinet was designed to house and shield the com-
ponents from outside interference. Absolutely NO other
components may be mounted inside or be electrically
tapped into the humidier without Herrmidier’s express
written permission. Failure to heed this warning will void
your warranty.
TEST POINTS
Each circuit board (See Figure 12) features three test points to
aid in the troubleshooting process. Each of these test points
works on a 0-4 VDC scale. “0 VDC” = 0%. “4 VDC” = 100%. All
readings are between the test point and ground (Molex J1, ter-
minal 11 [far right of molex connector, wire #11).
Test Point #1:
Provides exact reading of drain threshold setting.
Test Point #2:
Provides circuit board reference voltage. Should always
read 4 VDC +/-2%.
Test Point #3:
Provides actual percentage of output. For example, a unit
running at 80% of maximum output would have a Test Point
#3 to ground reading of 3.2 VDC.
Maximum Capacity Setpoint
The potentiometer labeled “R39” located in the top left-hand cor-
ner of the board allows adjustment of the unit’s capacity in the
range of 50-100% of maximum.
NOTE:
All blower units have their capacity set from the factory
at 4 lbs/hr. These units can have their capacity increased
by increasing the capacity adjustment potentiometer. En-
sure there is sufcient air circulation in the conditioned
space to prevent condensation on walls or ceiling when
increasing the capacity above 4 lbs/hr.
Circuit Board Settings
Models Time Cycle
R23
Low Drain
Setting, R18
Capacity,
R39
Standard Settings
All 60 sec 90 100%
High Conductivity Settings (> 1000 micromho)
All 84 sec 93 90%
Softened Water Settings (750-1000 micromho)
All 60 sec 92 95%
Low Conductivity Settings (<100 micromho)
All 60 sec 85 100%
TP3
TP1
TP2
CAP
ADJ
R18
%
R23
SEC
PROP DISPLAY
CR17
CR18
J1
R4
copyright 1986 HERRMIDIFIER CO, INC.
Test point #2
(Equilibrium voltage reading)
Test point #1
(Drain threshold reading)
Capacity adjustment pot
CR17 LED - overamp
condition indicator if
illuminated
CR18 diode drain
tempering socket
J1 Connector
Cycle timer pot
Low drain
threshold pot
R4 Capacity
resistor socket
(Output capacity)
Test point #3
Figure 12

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
14 www.herrmidifier-hvac.com
Unit Detected Faults: (Red Service Light is ON)
Problem / Symptom Probable Cause Reason - Correction
Overcurrent
The alarm condition occurs when an
overcurrent situation (>138% of rated
current) has occurred and the humidier
has shut down to prevent any damage.
This alarm indicates that there has been
a signicant reduction in resistance be-
tween the main legs of the supply power
and the humidier has been shut down to
prevent damage and should be serviced
before it is restarted. Overcurrent LED
CR 17 (Figure 12) is illuminated.
Dead short between electrodes. Replace the steam cylinder. Check re-
sistance between electrodes with power
“off”
Restricted or blocked drain. Clean and inspect drain system.
Restricted ll system Clean and inspect the ll system. Check
for restriction or loss of supply pressure.
Incoming water conductivity is outside
the range of normal circuit board settings.
Consult the factory for options.
Check amp draw to unit during start-up.
If amp draw greatly exceeds rated amp
draw, the drain threshold pot, labeled
“% adj.” (R18), must be increased 2% to
increase the frequency and duration of
drains to reduce the conductivity inside
the cylinder.
Manually drain the unit and restart.
End of Cylinder
This alarm condition occurs if the humidi-
er is unable to reach full output over a 6
hour timeframe. It is constantly switching
between “ll” and “cylinder full” modes.
This alarm indicates a need to change
the cylinder, that the water supply is low
in conductivity, or that a foaming condi-
tion exists:
End of cylinder life – Cylinder life is
typically between 500 and 2000 hours,
depending on incoming water supply.
For emergency use, you may restart the
humidier with the capacity setpoint,
R39, at a lower level to allow operation
until a replacement steam cylinder can
be obtained. To clear the fault, turn the
main disconnect to the unit “off” and then
back “on”.
If incoming water supply is less than 100
micromho, the unit may not be able to
pass the rated current through the water.
See – NON-FAULT ACTIVATED PROB-
LEMS GUIDE – “Unit lls to the cylinder
full condition and remains cold”
Foaming condition exists. Flush and ll the steam cylinder several
times and restart. If it persists, you must
lter or treat the water to remove the
foaming agent. See circuit board settings
on previous page if supply water is soft-
ened. See NON – FAULT ACTIVATED
PROBLEMS GUIDE – “Water foaming
inside the cylinder”
Fill System Fault
This alarm condition occurs when the ll
valve has been energized for a 6 hour
timeframe. The humidier has been
shutdown to prevent any damage.
Loss of or restricted water supply Check ll system.
Leaking drain system. Check drain system.
Defective drain valve. Repair and replace as required.
Defective ll valve. Repair and replace as required.
NOTE: The three fault conditions outlined above will cause the humidier to shut down and the service light on the front
of the unit to illuminate. To clear these faults, the main power must be turned “off” and back “on” again.

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
15
www.herrmidifier-hvac.com
Non-Fault Activated Problems:
Problem / Symptom Reason - Correction
24 VAC circuit breaker trips as
soon as power switch is turned
“on”.
Check the wiring at the 24 VAC breaker for a short or loose connection.
Disconnect the contactor coil from the circuit and repeat. If 24 volt breaker doesn’t blow,
replace the contactor.
Replace the main circuit board.
24 VAC circuit breaker trips after
the unit is turned on for about 15
seconds.
Disconnect ll valve from electrical circuit. If circuit breaker doesn’t trip, replace the ll
valve.
Replace the main circuit board
24 VAC Circuit breaker trips when-
ever the drain valve activates
Disconnect drain valve from electrical circuit. If circuit breaker doesn’t trip, replace the drain
valve.
Remove the drain valve and insure that it is clean and free of any obstructing mineral de-
posits.
Replace the main circuit board.
Humidier turned on but will not
operate. Power lamp is “off”.
Check power supply.
Check circuit breaker.
Check connector J1 on the circuit board and insure that it is plugged into the circuit board
properly and that no wires are loose.
Insure that there is 24 VAC between pole #9 and #11 connector J1. If not, check wiring.
Place jumper between controls terminal strip #1 and #2. If unit operates, check controls set-
tings and wiring (control stat, high limit humidistat, air proving switch.)
Check door interlock.
Unit turned “on”. Contactor pulled
in, but no water is entering the
cylinder.
Check external shutoff valves and open if closed.
Check strainer and ll valve for clogs. Turn adjusting screw (g. 9, page 10)
Check ll valve coil to determine if it is receiving 24 VAC. If so, replace the valve.
Check for break in wiring.
Excessive arcing in cylinder Check drain valve and insure that when it activates it drains freely. Clean if necessary.
Replace valve if defective.
Check water supply. If it is softened, increase the drain threshold pot, “% adj.” (R18), up to
92%. (See Figure 12)
Use high conductivity settings if water supply is very hard, >750 micromho.
Unit lling slower or at the same rate as the water is boiling, causing over concentration and
foaming. Check restriction in ll line. Adjust the metering ll valve to allow greater ow of
water. ( See Figure 9)
Have water analyzed. If iron content is greater than .1 mg/liter, a lter will have to be used.
Consult factory with water analysis
Unit lls to the cylinder full condi-
tion and remains cold.
Check between Test Point #3 and ground with a multimeter set on VDC scale. Conrm the
circuit board is seeing low current ow (<2.8 VDC). Proceed to next step.
If on initial ll, unit reaches less than 70% of rated capacity (2.8 VDC on Test Point #3),
adjust the drain threshold pot, “% adj.” (R18), down 2-3%. Manually drain the unit down
completely and add ½ Alka Seltzer tablet via the ll tee(GT-120). Restart the unit while
monitoring the amp draw. Fill unit ¼ full and turn “off” for several minutes to allow tablets to
dissolve. Restart unit. If amperage rises rapidly, it may be necessary to dilute the water. If
amperage rises slowly, add another Alka-Seltzer tablet.
Check that drain valve is sealing properly.
Check the water conductivity and consult the factory.
Unit turned on and cycles for a
short period of time. Then it stops
in the middle of a ll cycle and
won’t reset until boiling stops.
Check cylinder ll interface connections.
Check cylinder connections (See Figure #11)
Check items in next troubleshooting tip concerning foaming.
Check amperage between cylinder full electrode and cylinder full interface terminal #1. If it
is greater than 7.0 mA AC, take a ll water sample and consult the factory.

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
16 www.herrmidifier-hvac.com
Problem/Symptom Reason - Correction
Water “foaming” inside the cylin-
der.
Check drain valve and insure that water drains freely. If necessary, clean or replace valve if
defective.
Check water supply. If it is commercially softened, either increase the drain threshold (R18)
to 92% or reconnect the unit to raw water. Drain and restart the unit. If the unit is connect-
ed to a hot water line, reconnect to the cold water line.
If steam line is hard copper, drain cylinder and test unit operation disconnected from steam
line to insure ux from solder joints is not causing foaming.
Observe the ll tee(GT-120). If water is going down the overow and the water level is low:
Check to insure that static pressure in the duct is not forcing water down the overow in-
stead of allowing water to enter the cylinder.
Adjust the ll metering valve to regulate the water ow to the cylinder. ( Figure 9)
Unit lling slower or at the same rate as it is boiling off, causing over concentration and
foaming. Fill rate must be increased. Open metering valve.
If the ll valve is already fully open, get a water analysis and consult the factory.
Cylinder lls and overows Check cylinder wiring (See Figure #11)
Check wiring of cylinder full interface.
If more than 1.9 mA AC is passing between the cylinder full electrode and interface termi-
nal #1, and when placing multimeter between terminal #3 and ground yields approximately
negative 11 VDC, replace the interface.
Replace the circuit board.
Consult the factory after obtaining a water analysis
Unit turned on, lls to full amp
draw, stops lling, and after a
delay, the circuit breaker trips and
the service light comes on.
Use the “On-Off Drain” switch to drain the cylinder. Turn the capacity adjustment pot(R39)
on the main circuit board to 80% and restart the humidier.
Check the drain valve and clean or replace if necessary.
If the drain valve doesn’t come on before the service light illuminates, replace the main
circuit board.
Unit cycle “on” and “off” rapidly Check location and setting of high limit humidistat
Cabinet leaks Check for loose connections
Fill tube out of ll tee
Steam cylinder out of drain cup
Cabinet drain backing up, kink in drain line

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
17
www.herrmidifier-hvac.com
6000-1, -2
WIRING DIAGRAM
CYLINDER FULL INTERFACE
J1
2
1
4
3
10
MOLEX
765
9
8
11
16 PIN DIP PLUG
87
GROUNDED TO CHASSIS
FAN
ORG
RED
RED
ORG
2
1
3
POWER ELECTRODES
RED
TOROID
RED
BLK
RED
WHT
BLK
BLK
7
5
6
9
8
WHT
11
10
BLK
38
39
30
BLK
RELAY
BLK
BLK
18
13
BLK
WHT
13
BLK
37
35
33
32
BLK
36
34
BLK
(240V)
32
BLK
31
BLK
(120V)
BLK
RED
CYLINDER FULL ELECTRODE
19
WHT
BLK
8
29
1
4
ORG
3
2
3
(240V) (240V)
32
BLK
40
BLK
35
(24 RET)
22
WHT
POWER TERMINAL BLOCK
GRN
BLK
BLK
GND
L1
L2
TRANSFORMER
BLK (120V)
32
BLK BLK
31
(24 VAC)
BLK
23
15
RED
FILL VALVE DRAIN VALVE
ORG
BLK
12
ORG
5
6
BLK
15
9
4 5
BLUE BLK
SWITCH
3
1
2
24
10
25
RED
WHT
12
22
21
ORG
WHT
20
6
WHT
WHT
SERVICE LIGHT
28
11
7
DOOR INTERLOCK
RED
WHT
RED
BLUE
27
HUMIDISTAT
25
WHT
17
RED
WHT
18
RED
POWER LIGHT
CYLINDER FULL IND.
BLK BLK WHT BLK
WHT
14
20
16
19
30 34
BLK
237 OHM
2
RED
27
53
RELAY/TIMER
8 9
BLK
2A BREAKER
BLK
16
(240 VAC FOR 6000-2 AND 6000-4)
POWER INPUT (120 VAC FOR 6000-1 AND 6000-3)

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
18 www.herrmidifier-hvac.com
EST-1501
(6000-1)
GT-176-1 TANK ASSEMBLYTANK ASSEMBLY
(6000-2)
GT-202
EST-207
EST-1516
EST-1415
GT-262
DRAIN SUB-ASSEMBLY
EST-1533-1
EST-207
GT-262
GT-122
GT-120
1095
EST-1012
4060
FV-17
EST-1513
G-125
165203-001
G-157
EST-1415
GT-116
FILL SUB-ASSEMBLY
EST-1522A
GT-116
GT-118
EST-1146
EST-1143
EST-1141
EST-1142
8260R
EST-1407
EST-1519
1845
EST-353
EST-1001B
EST-353
EST-353
EST-207
EST-1405
EST-105A
EST-003P
EST-1409
EST-1530
EST-1512
EST-1514
EST-1409
121800-004
EST-1517-1 (115V) EST-1518-1 (230V)
EST-1225-KIT

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
19
www.herrmidifier-hvac.com
Blower Version Parts List (6000-1 and 6000-2)
1845 Door Interlock
8620R Humidistat Element
1860 KEP Nut, 6-32
121800-004 KEP Nut, 8-32
EST-003 A Cylinder Full Interface
EST-105A Toroid Transformer
EST-1001B Main Circuit Board
EST-1141 Red Lamp
EST-1142 Green Lamp (2)
EST-1143 On Off Drain Switch
EST-1225-KIT Drain Reservoir Kit
EST-1405 Timer/Relay
EST-1407 Knob
EST-1409 Universal Bushing
EST-1501 Steam Manifold
EST-1512 Transformer 120/240 to 24 VAC
EST-1513 Distribution Louver
EST-1514 Relay, 2 pole, 20 A
EST-1516 Steam Hose
EST-1517-1 Fan, 120V
EST-1518-2 Fan, 240V
EST-1519 Circuit Breaker, 2A
EST-1530 Terminal Block
EST-1533-1 Drain Valve Kit
EST-1542 Power Wire Assembly
EST-1543 Grommet, Vibration Dampening
EST-207 Clamp
EST-353 Bushing
GT-116 Celcon Compression Nuts
GT-118 Fill Valve
GT-125 Conical Filter
GT-202 Steam Cylinder Assembly (Standard 240V Units)
GT-176-1 Low Conductivity Steam Cylinder Assembly (Standard 120V Units)

Herrtronic®Model 6000
Installation, Operation, & Maintenance Manual
20 www.herrmidifier-hvac.com
6000-3, -4
WIRING DIAGRAM
INTERFACE CYLINDER FULL
2A BREAKER
5
5
MOLEX
42 3
1
RED
RED
ORG
ORG
2
1
3
98
67
10
11
J1
16 PIN DIP PLUG
87
10
BLK
RED
WHT
BLK
BLK
7
6
9
8
WHT
11
POWER
BLK
ORG
BLK
WHT
BLK
BLK
POWER ELECTRODES
RED
39
38
TOROID
RED
WHT
19
18
13
3
BLK
8
BLK
RELAY
36
BLK
13
BLK
(240V)
14
TO CHASSIS GROUNDED
GRN
35
BLK
33
BLK
BLK
32
32
BLK
31
(120V)
BLK
TERMINAL BLOCK
29
SENSOR FULL CYLINDER
3
4
RED
1
2
35
BLK
(240V)
32
BLK
BLK (120V)
(240V)
40
BLK
31
32
22
(24 VAC) (24 RET)
WHT
23
BLK
GND
L1
L2
TRANSFORMER
SERVICE
11
1
2
SWITCH
3
ORG
BLK
12
15
9
5
ORG
6
BLK
4 5
BLUE
10
24
BLK
25
RED
LIGHT
26
BLUE
INTERLOCK DOOR
RED
7
USED WHEN FAN INTERLOCK IS USED.
1. AIR PROVING SWITCH MUST NOT BE
HUMIDISTAT
RED
RED RED
21
WHT
WHT
ORG
12
22
VALVE DRAIN
WHT
WHT
6
19
VALVE FILL
WHT
20
LIGHT POWER
WHT
17
WHT
RED
18
25
WHT
FULL IND. CYLINDER
OHM 237
NOTE:
27
5 4
BLK WHT
21
WHT
16
BLK
15
20
27
RED
TERM STRIP
16
28
ORG
26
BLK BLUE
2 3
1
CONTROLS
RELAY FAN INTERLOCK
28
ORG
SEE NOTE 1
FIELD WIRING
FAN INTERLOCK (OPTIONAL)
HIGH-LIMIT
SWITCH AIR PROVING
POWER INPUT (120 VAC FOR 6000-1 AND 6000-3)
(240 VAC FOR 6000-2 AND 6000-4)