Trion HERRMIDIFIER Herricane CS Series User guide

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Herricane CS Series
Humidiers
Application Guide

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TABLE OF CONTENTS
SECTION I GENERAL INFORMATION
Table of Contents............................................................................................................................................ 2
Warranty Information ......................................................................................................................................3
SECTION II SYSTEM OVERVIEW
Why choose the CS Series?...........................................................................................................................4
Redening Guaranteed Performance.............................................................................................................5
Installation Guidelines ....................................................................................................................................6
Standard Parts Supplied with Humidier........................................................................................................ 7
Optional Parts Supplied by Manufacturer or Others.......................................................................................12
Parts Supplied by the Installer........................................................................................................................15
SECTION III HOW TO SELECT THE PROPER CS SERIES
Determine Duct Relative Humidity..................................................................................................................17
Determine the Correction Factor for Duct Temperature and RH ....................................................................18
Determine the Corrected Evaporative Distance .............................................................................................18
Determine the Steam Intensity .......................................................................................................................19
Choosing the Proper Model and Accessories.................................................................................................20
Steam Valve and Actuator ........................................................................................................................21
Strainer.....................................................................................................................................................21
Traps.........................................................................................................................................................21
Control Options.........................................................................................................................................21
SECTION IV PERFORMANCE SPECIFICATIONS
Central Steam Comparative Noise Levels......................................................................................................22
Size and Weight .............................................................................................................................................23
Air Static Pressure Loss .................................................................................................................................23
Heat Gain and Temperature Rise ...................................................................................................................24
SECTION V CS DISTRIBUTION W/ SELF-GENERATING STEAM SOURCE ..................... 27
SECTION VI TYPICAL SPECIFICATIONS ....................................................................................... 28

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SECTION I WARRANTY
Warranty
1. TRION/HERRMIDIFIER 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 TRION/HERRMIDI-
FIER Representative for a Material Return Authorization
(MRA) number. Items tagged (on the outside of the box)
with this number may be returned to TRION/HERRMIDI-
FIER for replacement. Incidental expenses such as cost
of transporting the humidier to TRION/HERRMIDIFIER
or labor associated with removal/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 without an MRA number will
not be accepted!
4. 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.
5. If, after a reasonable number of attempts to do so, TRI-
ON/HERRMIDIFIER is unable to remedy any defects or
malfunctions in this humidier, 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 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!
Evaporative distance can be measured in two ways. “Bulk”
evaporative distance is the distance beyond which con-
densation 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-effeciency
lters. TRION/HERRMIDIFIER has published evapora-
tive distance tables for standard conditions (55 degrees F,
70% 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
degrees and 70% humidity downstream of the humidier)
conditions. The tables are only useful with Herricane
CS Series humidiers. Application to other brands of hu-
midiers is not recommended. Differences in distribution
patterns will cause problems!
If you desire, you may forward your design criteria to TRI-
ON/HERRMIDIFIER for a written analysis of your evapora-
tive distances. We will be able to dene 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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SECTION II SYSTEM OVERVIEW
Why Choose the CS Series?
The CS-Series offers a family of four different products custom sized to handle all of your steam distribution needs. The
distribution system design has the following features that customers and engineers have told us they desire;
• Zero Maintenance
• Quality Construction - All Stainless Steel, ASME Certied Welds
• Quality Control - Your unit has been operated prior to shipment
• Flexible Design - Works with pressurized boiler, atmospheric boiler, or unred boiler
• Capacity to 2000 lbs/hr
• Stainless Steel Precision Nozzles
• Available “Guaranteed Evaporative Distance” Performance Guarantee
• Quiet Operation
• Superb Energy Efciency
• 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 be a central boiler, steam ow from the source rst
passes the inlet strainer. From here the steam travels to a condensation trap, and on to the steam valve. Depending on the
application, this valve could have a solenoid operator, a pneumatic operator, or an electric operator. Once the steam passed
through the steam valve, or enters the steam distribution system. The steam distribution system utilizes the same nozzle
design as the original CS-1. This design is extremely quiet, up to 7.3 times quieter than the competition, and efcient, 3-23%
more efcient than jacketed designs, depending on the duty cycle. Any condensate that forms in the distribution system will
be disposed of through the manifold trap.
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 page 24).

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SECTION II SYSTEM OVERVIEW
Redening Guaranteed Performance with the H.A.R.E.
Using the proprietary H.A.R.E. (Humidied Air Research Environment) facility, HERRMIDIFIER engineers were able to
accurately evaluate all potential humidication system variables - temperature, velocity, downstream relative humidity, and
steam intensity. From data gathered at 32,000 cfm facility, two sets of information have been gathered enabling a humidication
system to combine the best possible mix of economy and performance.
While temperature and velocity are common well dened terms, downstream relative humidity and steam intensity need
further review. Downstream relative humidity is the humidity level that must be achieved after the moisture from the humidier
is introduced into the airstream in order to meet the desired room conditions. Steam intensity is dened as the amount of
moisture (steam) introduced per lineal foot of distribution manifold (lbm/hr/ft).
The rst tool is a comparison of evaporative distance under changing conditions of air velocity and steam intensity at standard of
55ºF and 70% downstream relative humidity. The second tool, developed from thermodynamic and psychrometric relationships
and veried with the H/A/R/E/. determines the correction factor needed to compensate for psychrometric conditions (upstream
temperature and downstream relative humidity) which differ from the selected standard conditions (55ºF and 70% downstream
relative humidity). See Section III for these two charts.
The H.A.R.E research facility was designed and constructed in 1994. System building blocks are:
• Burnham Series EL-60-0-GP, 2.1 million Btu/hr Boiler
• York International Model AP-400 Air Handler (up to 32,000 cfm)
• Steam Flow Meter, featuring Meriam Instrument Orice Plates
• Custom designed and fabricated Test Tunnel with variable cross-section up to 6.5’Hx8’W. Test section length equals 32’
of laminar ow.

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SECTION II SYSTEM OVERVIEW
Installation Guidelines
Steam absorption distance for a system is dened in terms of “bulk” and “last wisp”. “Bulk” evaporative distance is the 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-efciency lters.
Installation:
1. The rst choice for an installation location would be a point where there is sufcient 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 sufcient “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 elimi-
nator 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 sufcient “bulk” evaporation distance is present. If
the heating coil is “on” during periods of humidication, 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
airow, 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 turbu-
lence, additional clearance may be required.
6. Sang is not required for most installation. Sang is best avoided since it adds uncontrollable turbulence to the airow,
which can cause surfaces to become wet and or extend the evaporative distance.

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Parts Supplied with the Humidier
The HERRMIDIFIER CS Series steam distribution system is available in four basic congurations. 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 Airow, CS-1102 is for Vertical Airow.
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 Airow.
CS-2107 & CS-2108 are designed for Vertical Airow.
CS-3110 Steam Distribution Systems
Note: CS-3110 is designed for Horizontal Airow.
3/4

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CS-3113 Steam Distribution Systems
Note: CS-3113 is designed for Horizontal Airow.
SUPPLY SEPARATOR/HEADER
STEAM DISTRIBUTION TUBES
STEAM NOZZLES
DUCT MOUNTING LUGS
SUPPORT BRACKET
1 1/2" FNPT
STEAM INLET

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CS-3115 Steam Distribution Systems
Note: CS-3115 is designed for Horizontal Airow.
CS-3119 Steam Distribution Systems
Note: CS-3119 is designed for Horizontal Airow.

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CS-3112, CS-3117 Steam Distribution Systems
Note: CS-3112 & CS-3117 is designed for Vertical Airow.
CS-4111, CS-4116 Steam Distribution Systems
Note: CS-4111 & CS-4116 are designed for Vertical Installation in Horizontal Airow.

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Optional Parts Supplied with Humidier 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
CS-2105, CS-2106, CS-2107, CS-2108 Steam Distribution Systems

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Optional Parts Supplied with Humidier 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-3110 Steam Distribution Systems

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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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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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SECTION III HOW TO SELECT THE PROPER CS SERIES
1. Redening Guaranteed Performance with the H.A.R.E.
To properly select your new steam distribution system, some information is required initially. You will need to know the duct or
air handler dimensions where the unit is to be installed, the capacity requirement, and what type of control and accessories
will be used. If you already know the duct relative humidity downstream of the humidier, you may skip to step #2.
Duct Relative Humidity
Room
Temp
Duct
Temperature Room Relative Humidity - %R.H.
ºF ºC 25 30 35 40 45 50 55 60 65 70 75 80
68º F
19º C
50 10 46 57 65 75 83 93
55 12.8 39 48 54 62 70 79 85 94
60 15.6 31 40 46 51 59 66 71 79 87 91 98
65 18.3 28 33 39 44 50 55 60 66 73 79 82 89
70 21.1 22 29 31 38 41 48 51 56 61 65 70 75
70º F
21º C
50 10 50 61 72 81 92
55 12.8 40 51 60 68 77 84 94
60 15.6 36 42 50 56 63 70 77 85 92
65 18.3 30 36 41 50 53 60 66 71 78 82 89 96
70 21.1 25 30 35 40 45 50 56 60 65 70 75 80
72º F
22º C
50 10 50 65 75 85 96
55 12.8 42 54 62 70 80 90 97
60 15.6 37 46 52 60 68 74 81 90 98
65 18.3 30 39* 44 50 56 61 70 76 81 88 94
70 21.1 27 31 38 41 48 52 59 54 70 73 80 85
74º F
23º C
50 10 59 69 80 92
55 12.8 49 58 67 78 87 97
60 15.6 40 48 56 65 71 80 89 98
65 18.3 33 39 48 54 60 69 73 81 89 95
70 21.1 29 34 40 47 51 58 62 69 73 80 86 91
2. Upstream Clearance Requirements
Some upstream clearance is required for the nozzle discharge into the airstream. This varies depending on temperature, the
obstruction, velocity and nozzle sizing. The chart below is for duct temperature above 50º F. Distances shown are from the
center of the steam distribution tube in inches.
Steam Intensity, lbm/hr/ft
Air
Velocity, fpm 5.0 7.5 10 15 20 25 30 50
400 2.5 2.5 3.0 3.0 3.0 4.0 4.0 6.0
500 2.0 2.0 3.5 2.5 2.5 3.5 3.5 5.0
750 1.75 1.75 2.25 2.25 .25 3.0 3.0 4.0
1000 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0
>1000 <1.5 <1.5 <2.0 <2.0 <2.0 <2.5 <2.5 <3.0

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SECTION III HOW TO SELECT THE PROPER CS SERIES
We recommend a minimum of 6” downstream of an object for service and installation concerns. The only time 6” is insufcient
would be on a VAV system which combines manifolds in the air handler and a very high steam intensity - which is a rare
condition. The upstream clearance chart is shown for conrmation that the 6” number is adequate.
For example: We have a total of 30” to evaporate the steam at 60º, 80% RH and 1500 fpm. The chart shows we only need
between <1.5” and <3.0” at the velocities over 1000 fpm. The 6” recommended clearance is more than sufcient. Therefore,
our net available evaporation distance is 24”.
3. “Correction Factor” for Duct Temperature and Duct Relative Humidity
Duct temperature and downstream duct relative humidity have a profound effect on the evaporative distance of any humidier.
Together with air velocity, which will be addressed in step 4, these are the factors that can make or break an otherwise good
application. All three must be addressed for a good application.
The correction factor will take the conditions present in the subject duct/air handler and translate those conditions to the
standard conditions of 55ºF @ 70%RH. The evaporation distances at standard conditions are detailed on the Steam Intensity
Chart on the next page. The correction factor will make the specific conditions in the duct/air handler equal to the standard
conditions of 55ºF @ 70%. For example, if the conditions in the duct are less conducive to evaporation, say 60ºF @80% RH,
we must use the “Correction Factor” Chart to determine the shorter evaporation distance than required at standard conditions.
Notice that the correction factor is 1.25 and we want the bulk of the steam evaporated in 24”. The corrected bulk evaporation
distance is:
Ec = 24” / 1.25 = 19.2” pr 1.6’
Correction Factor for Bulk and Last Wisp Evaporation Distances
Duct Temp, ºF30% 40% 50% 60% 70% 80% 90%
40 .75 .88 1.06 1.32 1.76 2.64 5.28
45 .62 .73 .87 1.09 1.45 2.18 4.35
50 .52 .60 .72 .90 1.20 1.80 3.61
55 .43 .50 .60 .75 1.00 1.50 3.00
60 .36 .42 .50 .63 .84 1.25 2.51
65 .30 .35 .42 .53 .70 1.05 2.10
70 .25 .30 .35 .44 .59 .88 1.77
75 .21 .25 .30 .37 .50 .75 1.49
80 .18 .21 .25 .32 .42 .63 1.27
85 .15 .18 .22 .27 .36 .54 1.08
90 .13 .15 .18 .23 .31 .46 .92
95 .11 .13 .16 .20 .26 .39 .79
100 .10 .11 .14 .17 .23 .34 .68

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SECTION III HOW TO SELECT THE PROPER CS SERIES
4. “Correction Factor for Duct Temperature and Duct Relative Humidity
The steam intensity is dened as the amount of steam in lbm/hr to be distributed by a foot of evaporative tube. The lower the
steam intensity, the quicker the evaporation. Using the velocity of the duct or air handler to be humidied, together with the
corrected evaporative distance in feet, Ec, the necessary steam intensity can be determined. The steam intensity must be
selected so that the evaporation distances are less than the corrected evaporation distances.
“Steam Intensity” is the amount of steam discharged from a steam manifold in lbm/hr of steam/ft of manifold “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.
From our example in step #3, the corrected bulk evaporative distance, Ec, was equal to 19.2” or 1.6’. Our duct velocity was
1500 fpm. Therefore, the required steam intensity would be 10 lbm/hr/ft. The highlighted spot shows an evaporative distance
of 1.1’ at 1500 fpm velocity. Steam which would evaporate in 1.1’ x 1.25 correction factor or 1.38’ at 60 degrees F, 80% RH.
WARNING: UTILIZING THE THREE CHARTS ABOVE WILL ALLOW YOU TO ACCURATELY PREDICT THE EVAPORATIVE
DISTANCE BASES ON THE DESIGN PARAMETERS YOU SELECT. ANY DEVIATION FROM THE PARAMETERS YOU’VE
SELECTED (TEMPERATURE, DOWNSTREAM RH, VELOCITY, STEAM INTENSITY) OR TURBULENT AIRFLOW WILL
DRAMATICALLY EFFECT THE EVAPORATIVE DISTANCE. CONSULT THE FACTORY PRIOR TO RUNNING A SYSTEM
THAT HAS BEEN MODIFIED FROM THE DESIGN PARAMETERS TO INSURE A TROUBLE-FREE INSTALLATION.
Steam Intensity, #/hr/ft
Air Velocity,
fpm
5
Bulk
5
Last Wisp
7.5
Bulk
7.5
Last Wisp
10
Bulk
10
Last Wisp
15
Bulk
15
Last Wisp
500 0.6 7.8 0.9 9.8 1.4 12.4 2.0 15.7
750 0.6 6.9 0.9 8.8 1.3 11.1 2.0 14.1
1000 0.5 6.5 0.8 8.1 1.2 10.1 1.9 12.6
1250 0.5 5.6 0.7 7.0 1.2 8.14 1.9 10.9
1500 0.4 4.8 0.7 6.0 1.1 7.6 1.9 9.4
Steam Intensity, #/hr/ft
Air Velocity,
fpm
20
Bulk
20
Last Wisp
30
Bulk
30
Last Wisp
50
Bulk
50
Last Wisp
500 2.9 19.8 4.3 25.1 6.3 31.8
750 3.0 17.8 4.5 22.6 6.9 28.6
1000 3.0 15.8 4.8 19.8 7.5 24.8
1250 3.1 13.7 5.1 17.1 8.1 21.4
1500 3.2 11.8 5.3 14.8 8.7 18.5

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SECTION III HOW TO SELECT THE PROPER CS SERIES
5. Choosing the Proper Herricane CS Series Humidier for Your Application
You should now have almost all the information needed to select the components necessary to build your humidier. To
summarize, the following information is needed:
• Capacity
• Duct or Air Handler Dimensions
• Steam Intensity
The CS Series has the following design limitations:
NOTE: The CS Series units are designed to be mounted to the duct or air handler wall. The standard systems are
designed for a max 1” thick wall. If the duct wall is thicker, additional spacing will have to be provided on wither end
of the distributor tube to prevent any condensation from forming on the duct walls.
You will also have to calculate the maximum capacity per tube as follows:
Maximum Capacity per Tube = (Duct Width - 6”) x Steam Intensity = Tc
1. If Tccan be achieved with one tube with less than 60 lbs/hr capability, the CS-1100 is your choice.
2. If Tccan be achieved with one tube with less than 500 lbs/hr capability, the CS-2105 is your choice.
3. The CS-3110 has a minimum tube spacing of 3”. Therefore, the maximum number of tubes is 25 tubes. If your total
system capacity divided by Tcis less than 25, the CS-3110 may be a possibility. It may be possible that the CS-3110
is more expensive than the CS-3115 or CS-3119 to achieve the save evaporative performance. Consult your TRION/
HERRMIDIFIER representative for a comparative analysis.
4. The CS-3115 and CS-3119 have the greatest system capacity, upwards of 2000 lbs/hr. Due to the various design factors
including the various header sizes, it is necessary to contact your TRION/HERRMIDIFIER representative for exact system
design.
Model Number Manifold Limitations Maximum Capacity
CS-1000 Single Manifold, 6” Length 100 lbs/hr (45.5 kg/hr)
CS-2000 Single Manifold, 10” Length 600 lbs/hr (273 kg/hr)
CS-3000 Horizontal Pipe Multi-Tube Humidier 2000 lbs/hr (910 kg/hr)
CS-4000 Vertical Pipe Multi-Tube Humidier 1600 lbs/hr (727 kg/hr)