Engineered Humidification Systems
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Herricane CS Series
Installation, Operation & Maintenance
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Installation, Operation, & Maintenance Manual
TABLE OF CONTENTS
I. GENERAL INFORMATION
Table of Contents............................................................................................................................................2
Warranty Information ......................................................................................................................................3
Standard parts supplied with humidier..........................................................................................................4
Optional parts supplied with humidier or supplied by others, Typical plumbing arrangement ..................... 5
Parts supplied by others ................................................................................................................................. 8
II. SYSTEM OVERVIEW
Humidier System ..........................................................................................................................................11
Installation Guidelines ....................................................................................................................................12
III. STEAM DISTRIBUTION SYSTEM INSTALLATION
CS-1100, CS-1102 Compact Single Tube Distribution System ......................................................................13
CS-1101, CS-1103 Compact Single Tube for Atmospheric Boilers ................................................................ 14
CS-2105, CS-2106, CS-2107, CS-2108 Single Tube Distribution System .....................................................15
CS-3110 Compact Multi-Tube Distribution System ........................................................................................16
CS-3113
CS-3115 Horizontal Pipe, Multi-Tube Systems...............................................................................................17
CS-3119 Horizontal Pipe, Multi-Tube Systems...............................................................................................18
CS-3112, CS-3117 Horizontal Pipe, Vertical Airow Systems ........................................................................ 19
CS-4111, CS-4116 Vertical Pipe, Multi-Tube Systems ...................................................................................20
IV. ACCESSORY INSTALLATION
Traps ..............................................................................................................................................................21
Strainers .........................................................................................................................................................21
Temperature Interlock Switch .........................................................................................................................21
V. SELF-GENERATING STEAM (ATMOSPHERIC) AS A SOURCE ......................................... 22
VI. CONTROL OPTIONS
On/Off ............................................................................................................................................................. 23
Electric ............................................................................................................................................................ 23
Pneumatic.......................................................................................................................................................23
VII. STARTING THE HUMIDIFIER .....................................................................................................24
VIII. MAINTENANCE GUIDE ................................................................................................................24
IX. TROUBLESHOOTING GUIDE ....................................................................................................25
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Herricane CS® Series
Installation, Operation, & Maintenance Manual
I. GENERAL INFORMATION
Warranty
1. Herrmidier warrants to the buyer or any user during the
duration of the Warranty that the humidier described
in this manual will be free from defects of material and
workmanship for a period of three (3) years from the
date of shipment.
2. For this Warranty to be effective, this humidier must
be installed, operated and maintained in accordance
with the Installation Instructions, Operations and
Maintenance Manual(s) supplied with the humidier.
3. In the event of a defect or malfunction in this product during
the Warranty Period, user may contact the Customer
Service Department or their Herrmidier Representative
for a Material Return Authorization (MRA) number. Items
tagged (on the outside of the box) with this number may
be returned to Herrmidier for replacement. Incidental
expenses such as cost of transporting the humidier
to Herrmidier or labor associated with removal/
replacement of the parts shall be paid by the user. Upon
completion of the reconditioning, the humidier will be
returned at no cost to the user. Items returned without
an MRA number will not be accepted!
4. This Warranty does not cover eld labor for
repairs to this humidier or any special, indirect or
consequential damages. Some states do not allow
the exclusion or limitation of incidental or consequential
damages, so the above limitation may not apply to you.
5. If, after a reasonable number of attempts to do so,
Herrmidier is unable to remedy any defects or
malfunctions in this humidier, then the user may elect
either a replacement of such product or part which may
be defective without charge or a refund of the buyer’s
original purchase price.
6. This Warranty gives you specic 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 humidier. Adjust-
ments to the circuit board may be necessary based on
the incoming water quality.
Performance problems associated with water quality
are not warranty issues!
Evaporative distance can be measured in two ways.
“Bulk” evaporative distance beyond which condensation
will not occur on objects at duct temperature. “Last
Wisp” evaporation is the point beyond which there is no
visible steam and it is safe to install high-efciency lters.
Herrmidier has published evaporative distance tables
for standard conditions (55°F, 70% downstream relative
humidity). Steam intensity and air velocity are evaluated at
these conditions. A second table is published which allows
correction to non-standard )other than 55°F and 70%
relative humidity downstream of the humidier) conditions.
The tables are only useful with Herricane CS Series
humidiers. Application to other brands of humidiers is
not recommended. Differences in distribution patterns will
cause problems!
If you desire, you may forward your design criteria to Herrmidier for a written analysis of your evaporative distances.
We will be able to dene the “bulk” and “last wisp” evaporative distance based on this criteria only. If any changes
are made to the design, a follow-up analysis must be made
to assure fail-safe operation.
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Installation, Operation, & Maintenance Manual
Parts Supplied with the Humidier
The Herrmidier CS Series steam distribution system is available in four basic congurations. As shown below, each of
these systems include at a minimum a method of distributing steam, mounting provisions, a steam inlet connection, and a
condensate drain(s) connection.
CS-1100, CS-1102 Steam Distribution Systems
Note: CS-1100 is designed for Horizontal Airow, CS-1102 is for Vertical Airow.
CS-1101, CS-1103 Steam Distribution Systems
Note: CS-1101 is designed for 1 ½” hose or hose cuff connection. CS-1103 includes 2” FPT tting for Steam Inlet.
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CS-2105, CS-2106, CS-2107, CS-2108 Steam Distribution Systems
Note: CS-2105 & CS-2106 are designed for Horizontal Airow.
CS-2107 & CS-2108 are designed for Vertical Airow.
3/4
CS-3110 Steam Distribution Systems
Note: CS-3110 is designed for Horizontal Airow.
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Installation, Operation, & Maintenance Manual
CS-3113 Steam Distribution Systems
Note: CS-3113 is designed for Horizontal Airow.
STEAM DISTRIBUTION TUBES
STEAM NOZZLES
SUPPORT BRACKET
SUPPLY SEPARATOR/HEADER
DUCT MOUNTING LUGS
1 1/2" FNPT
STEAM INLET
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CS-3115 Steam Distribution Systems
Note: CS-3115 is designed for Horizontal Airow.
CS-3119 Steam Distribution Systems
Note: CS-3119 is designed for Horizontal Airow.
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Installation, Operation, & Maintenance Manual
CS-3112, CS-3117 Steam Distribution Systems
Note: CS-3112 & CS-3117 is designed for Vertical Airow.
CS-4111, CS-4116 Steam Distribution Systems
Note: CS-4111 & CS-4116 are designed for Vertical Installation in Horizontal Airow.
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Optional Parts Supplied with Humidier or Supplied by Others:
Steam Valve
Valve Actuator: Pneumatic, ON/OFF Electric, or Electric Modulating Actuators
Inlet Strainer
Supply Trap: F&T Trap or Inverted Bucket Trap
Manifold Trap(s): Angle Thermostatic Trap, Vertical Thermostatic Trap, or F&T Trap
Parts Supplied by Others
(Unions and items shown in dashed lines)
CS-1100, CS-1102 Steam Distribution Systems
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Installation, Operation, & Maintenance Manual
CS-2105, CS-2106, CS-2107, CS-2108 Steam Distribution Systems
CS-3110 Steam Distribution Systems
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Parts Supplied by Others
(Unions and items shown in dashed lines)
CS-3115 Steam Distribution Systems
CS-3119 Steam Distribution Systems
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Installation, Operation, & Maintenance Manual
Parts Supplied by Others
(Unions and items shown in dashed lines)
LPR vs Open Gravity Drain
CS-3112, CS-3117 Steam Distribution Systems
CS-4111, CS-4116 Steam Distribution Systems
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Herricane CS® Series
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II. SYSTEM OVERVIEW
Humidier System
The humidier you have just purchased is the result of years of testing as we rened the original CS-1 humidier into the
current CS-Series of units. The CS-Series offers a family of four different products custom sized to handle all of your steam
distribution needs. The distribution system has the following features:
• Zero Maintenance
• Quality Construction - All Stainless Steel Construction, ASME Certied Welds
• Quality Control - Your unit has been pressure tested prior to shipment.
• Flexible Design - Works with pressurized boiler, atmospheric boiler, or unred boiler.
• Capacity to 2000 lbs/hr.
• Stainless Steel Precision Nozzles
• Available “Guaranteed Evaporative Distance” Performance Guarantee
• Quiet Operation
• Superb Energy Efciency
• NO FIELD ASSEMBLY of distribution system
• Total system design assures that YOU GET THE CAPACITY YOU PAID FOR!
The system is as ingenious as it is simple. In a system with steam supplied by a central boiler, steam ow from the source
rst passes the inlet strainer. From here the steam travels to a condensate trap, then on to the steam valve. Depending on
the application, the valve could have a solenoid operator, a pneumatic operator, or an electric operator. Once the steam
has passed through the steam valve, it enters the steam distribution system. This design is extremely quiet, up to 7.3 times
quieter than the competition. It is also efcient, 3-23% more efcient than jacketed designs, depending on the duty cycle, Any
condensate that forms in the distribution system will be disposed of through the manifold trap(s).
With a self-generating steam unit, the modulation of steam would occur in the boiler itself, therefore, the strainer, steam valve
and supply trap would be eliminated. See Section V for a typical layout.
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Installation, Operation, & Maintenance Manual
Installation Guidelines
Steam absorption distance for a system dened in terms of “bulk” and “last wisp.” “Bulk” evaporation is the point beyond which
no condensation will occur on objects at the duct temperature. “Last wisp” evaporation is the point beyond which there is no
visible steam and it is safe to install high efciency lters.
Installation:
1. The rst choice for an installation location would be a point where there is sufcient straight run to allow for a “last wisp”
evaporation.
2. The second choice would be to locate the system in front of the cooling coil when there is sufcient “bulk” evaporation
distance in front of the cooling coil. Since the cooling coil typically has a drain pan, the coil can act as a moisture eliminator in case something should go awry with the total system control.
3. The area prior to the fan or heating coil would be the next choice if sufcient “bulk” evaporation distance is present. If
the heating coil is “on” during periods of humidication, the extra heat would help minimize evaporation distance.
4. Locating the system in the mixed air box would be poor choice due to the potential for cold temperature and turbulent
airow, which would lead to creation of wetted areas.
5. Allow six inches of upstream clearance for ease of installation and accessibility. If the upstream object is causing turbulence, additional clearance may be required.
6. Sang is not required for most installation. Sang is best avoided since it adds uncontrollable turbulence to the airow,
which can cause surfaces to become wet and or extend the evaporative distance.
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III. STEAM DISTRIBUTION SYSTEM INSTALLATION
Installation Guidelines
CS-1100, CS-1102
(see page 8 for typical plumbing arrangement)
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Installation, Operation, & Maintenance Manual
Installation Guidelines
CS-1101, CS-1103
(see page 8 for typical plumbing arrangement)
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Herricane CS® Series
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Installation Guidelines
CS-2105, CS-2106, CS-2107, CS-2108
(see page 9 for typical plumbing arrangement)
8”
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Installation, Operation, & Maintenance Manual
Installation Guidelines
CS-3110
(see page 9 for typical plumbing arrangement)
IS
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Herricane CS® Series
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Installation Guidelines
CS-3115
(see page 10 for typical plumbing arrangement)
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Installation, Operation, & Maintenance Manual
Installation Guidelines
CS-3119
(see page 10 for typical plumbing arrangement)
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Herricane CS® Series
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Installation Guidelines
CS-3112, CS-3117
(see page 11 for typical plumbing arrangement)
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Installation, Operation, & Maintenance Manual
Installation Guidelines
CS-4111, CS-4116
(see page 11 for typical plumbing arrangement)
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IV. ACCESSORY INSTALLATION
STRAINERS:
The strainers come in a variety of sizes depending on the steam pressure and ow. The inlet and outlet ports should be
mounted in the horizontal position. The exhaust port, located closest to the outlet port should be pointed down to catch debris.
TRAPS:
Supply: Standard supply traps offered by Herrmidier are Float & Thermostatic Traps (F&T). Their model number will be
determined by the inlet pressure and capacity requirements. There are two inlet ports and two outlet ports for a total of four
possible piping combinations to simplify installation. The inlet ports are the top ports and the outlet ports are the bottom ports.
Inverted buckets are also available upon request.
Manifold: The manifold traps can be F&T’s as described above or thermostatic traps (T&A). The T&A traps are available in
two congurations. The vertical traps have the inlet port in the top and the outlet on the bottom. The angle trap[s have the inlet
on the side and the outlet on the bottom. Thermostatic traps should be located a minimum of 12” away from the distribution
system to allow for adequate cooling of condensate prior to the trap.
TEMPERATURE INTERLOCK SWITCHES:
The design of the CS Series does not require the use of temperature interlock switches for proper operation. The supply trap
will keep the supply line free of condensate and the manifold design allows for rapid heating and the manifold trap can handle
any condensate that is formed. If a temperature interlock switch is desired, it would be installed in the steam line between the
main steam supply line and the supply trap. It would be wired with the control signal to prevent the humidier from energizing
if condensate is in the system. See gure below.
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Installation, Operation, & Maintenance Manual
V. SELF-GENERATING STEAM (ATMOSPHERIC) AS A SOURCE
The use of a self-generating source of steam, such as a self-contained electrode boiler requires some special installation
considerations with regard to duct air velocity, duct static pressure and interconnecting plumbing between the steam generating
unit and the steam distribution system. Following the instructions below will insure a trouble-free installation.
1. Manifolds, header, and nozzles are all stainless steel material.
2. Manifold trap required on CS-2000, CS-3000 and CS-4000 series units. Trap not required on CS-1101, CS-1103, or
CS-3113 units.
3. CS-58 collection header may be used to connect a dual outlet steam tank to a single 2” hose or tube for connection to a
distribution system.
4. MDD units require a separate distribution system for each cylinder.
5. Exact number of steam distributor tubes may vary.
6. Exact number of steam nozzles per distributor tube may vary.
7. Duct static pressure:<5: H2O
8. Air Velocity: <2000 fpm
9. Steam outlets on steam cylinder are 1 ½” O.D. Recommended supply lines are 1 ½” Insulated Type L Copper Pipe with
1 ½” Hose cuffs for single steam outlet (units to 50 lbs/hr) and 2” I.D. insulated copper pipe for two outlet units (units with
capacity from 51-100 lbs/hr).
10. Unit shown with CS-1101. Other CS Series may also be used.
11. Plumbing from unit to steam distribution system provided by others.
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Herricane CS® Series
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VI. CONTROL OPTIONS
On/Off Control: While the simplest to wire, on/off control is also the least accurate control scheme available. Instructions
are included with each actuator/linkage package which details the proper connections of power to the actuator. It is always
recommended that control, high limit, and air proving devices be used. In the case of on/off control, the three devices are
simply wired in series.
Pneumatic Modulating Control: As with on/off control, the proper connection methods are included in the actuator/linkage
package. Also, control, high limit, and air proving devices are recommended. With pneumatic modulating control, the high limit
and air proving devices may be pneumatic, which allows for a modulating high limit and the best possible control, or electric,
where a solenoid valve makes or brakes the pneumatic control air. The solenoid power is controlled by the on/off high limit
and air proving devices which are wired in series with the power supply to the solenoid.
Electric Modulating Control: The wiring schematic is included in the actuator/linkage package. The power supply (24 VAC,
120 VAC, or 240 VAC) and the control signal (4-20 mA, 0-10 VDC voltage signal, etc.) must be specied at the time of order.
Double check that what was ordered matches the power available prior to installing the device. High limit and air proving
devices are recommended.
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Installation, Operation, & Maintenance Manual
VII. STARTING THE HUMIDIFIER
Start-Up Procedure
Once the Herricane system is properly installed and connected to a steam source, condensate drains, and controls, the
following sequence of events should be used to activate the humidier.
1. Turn all humidistats to the “off” position
2. Open the steam supply valve and allow the supply trap to warm up and drain away condensate from supply piping.
3. Set desired relative humidity on the high limit humidistat(s). Recommended setting is 80%.
4. Turn the control humidistat to allow the humidier to begin operating.
5. After the humidier has run for a period of time, turn the control humidistat off so that the humidier control valve closes.
Then close the steam supply valve to the humidier.
6. Remove the strainer screen from the inlet strainer and clean. Check the steam traps to insure they are also clean.
7. Test all humidistats and air ow switches to insure they are operating properly.
8. Reset control device to the desired set point.
VIII. MAINTENANCE GUIDE
Steam Distribution System
All models of the CS Series Steam Distribution System are maintenance free. If the steam supply is dirty, it may be necessary
to wipe down the external surfaces of the distribution manifolds. If any steam nozzles clog, use a #67 drill bit to clean the
nozzle.
Strainers
Once a year, check the strainer for proper operation. Open a valve or plug on the exhaust port for self-cleaning.
Traps
Once a year, check for proper operation. All the working parts on the traps are accessible without removing the trap from the
system piping. The F&T traps have a clean-out plug at the bottom of the trap body for easy ushing.
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Herricane CS® Series
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IX. TROUBLESHOOTING GUIDE
Humidier Will Not Discharge Steam
• Check humidier to see if it is hot and charged with steam. If humidier is cold and does not contain steam, check supply
valve to be sure it is open, check strainers to insure that they are not plugged and any pressure regulating device used
in the system.
• Check humidistat to insure that it is operating properly. If no output, electrical or pneumatic, is obtained from the humidistat,
the humidistat is at fault and should be repaired or replaced.
• Check valve operator and valve. A valve operator could have a damaged motor or ruptured diaphragm which would
prevent it from responding to the appropriate signal. Also check valve controller mechanisms and the valve to insure it
has not been jammed closed with dirt and debris.
Humidier Discharges Steam Continuously Even After Reaching Desired Humidity Level
• Check humidistats and controllers for proper operation and calibration. If they are found to be at fault, repair or replace.
• Check valve operator for defect. Repair or replace as necessary.
• Check valve for build up of dirt. Clean or replace as necessary. Clean inlet strainer at this time.
• Check to see that the actuator is mounted correctly.
Humidier Discharges Water
• Nozzles spraying directly on duct walls. System designed for 1” thick walls. If walls are thicker than that, notify factory for
simplest remedy. It may be necessary to modify manifolds in some manner.
• Check to see humidier is plumbed correctly. See installations drawings for appropriate system.
• Check to insure steam traps are correct for application and that they are not clogged with dirt or debris.
• If boiler carryover is reason for ooding of humidier, check with powerplant operator to correct situation.
• Check to see that all manifold traps drain to a gravity drain.
• Supply trap may be piped to a pressurized condensate return but inlet steam pressure must be sufciently higher than
condensate pressure to compensate for any lifting of the condensate.
• Check to see that humidier is mounted correctly. See appropriate installation drawing.
• If humidier is at end of long run of supply line and system has been inactive for period of time, allow supply trap to warm
up prior to activating humidistat.
• For CS-3119 models, shut-off steam control valve and open slowly to allow condensate to ll “p” trap on the unit.
• Steam supply pressure is in excess of 125% of design pressure. Adjust as necessary.
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Engineered Humidification Systems
Herrmidifier
®
101 McNeill Rd. | Sanford, NC 27330
P: 800.884.0002 | F: 800.458.2379 | www.herrmidifier-hvac.com | cs@herrmidifier-hvac.com
Form No. OM-216 05/13 ©Herrmidier 2013. All Rights Reserved.
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