Spirax Sarco CSM-C User manual

© Copyright 2012Printed in the UK
3.696.5275.210 IM-P486-05
CH Issue 4
CSM-C (Steam-to-Steam) Compact Clean Steam Generator
Management Installation and Maintenance Instructions
HTM 2031 approved
The PED Directive 97/23/EC is repealed and replaced by the new
PED Directive 2014/68/EU with effect from 19 July 2016.

ATTENZIONE
Lavorare in sicurezza con apparecchiature
in ghisa e vapore
Working safely with cast iron products on steam
Informazioni di sicurezza supplementari - Additional Informations for safety
Lavorare insicurezza conprodotti
in ghisa per linee vapore
I prodotti di ghisa sono comunemente presenti
in molti sistemi a vapore.
Se installati correttamente, in accordo alle
migliori pratiche ingegneristiche, sono dispositivi
totalmente sicuri.
Tuttavia la ghisa, a causa delle sue proprietà
meccaniche, è meno malleabile di altri materiali
come la ghisa sferoidale o l’acciaio al carbonio.
Di seguito sono indicate le migliori pratiche
ingegneristiche necessarie per evitare i colpi
d'ariete e garantire condizioni di lavoro sicure
sui sistemi a vapore.
Movimentazione in sicurezza
La ghisa è un materiale fragile: in caso di
caduta accidentale il prodotto in ghisa non è
più utilizzabile. Per informazioni più dettagliate
consultare il manuale d'istruzioni del prodotto.
Rimuovere la targhetta prima di effettuare la
messa in servizio.
Working safely with cast iron
products on steam
Cast iron products are commonly found on steam
and condensate systems.
If installed correctly using good steam
engineering practices, it is perfectly safe.
However, because of its mechanical properties,
it is less forgiving compared to other materials
such as SG iron or carbon steel.
The following are the good engineering practi-
ces required to prevent waterhammer and ensu-
re safe working conditions on a steam system.
Safe Handling
CastIronisa brittlematerial.If theproduct isdropped
during installation and there is any risk of damage
the product should not be used unless it is fully
inspectedand pressuretested bythe manufacturer.
Please remove label before commissioning

Vapore
Steam
Flusso
Flow
Esempi di esecuzioni corrette ( ) ed errate ( ) sulle linee vapore:
Steam Mains - Do's and Dont's:
Flusso
Flow
Prevenzione dai colpi d’ariete - Prevention of water hammer
Scarico condensa nelle linee vapore - Steam trapping on steam mains:
Intervalli di 30÷50 m. intervals
Pendenza - Gradient 1:100
Vapore
Steam Gruppo di scarico
Trap set
Condensa - Condasate
Pendenza - Gradient 1:100
Gruppo di scarico
Trap set
Gruppo di scarico
Trap set
Condensa - Condasate
Condensa - Condasate
Vapore
Steam

Prevenzione delle sollecitazioni di trazione
Prevention of tensile stressing
Evitare il disallineamento delle tubazioni - Pipe misalignment:
Installazione dei prodotti o loro rimontaggio post-manutenzione:
Installing products or re-assembling after maintenance:
Evitare l’eccessivo serraggio.
Utilizzare le coppie di serraggio
raccomandate.
Do not over tighten.
Use correct torque gures.
Per garantire l’uniformità del carico e dell'allineamento,
i bulloni delle ange devono essere serrati in modo
graduale e in sequenza, come indicato in gura.
Flange bolts should be gradually tightened across
diameters to ensure even load and alignment.

Dilatazioni termiche - Thermal expansion:
Gli esempi mostrano l’uso corretto dei compensatori di dilatzione. Si consiglia di richiedere una
consulenza specialistica ai tecnici dell’azienda che produce i compensatori di dilatazione.
Examples showing the use of expansion bellows. It is highly recommended that expert advise is
sought from the bellows manufacturer.
Guide
Guides
Distanza breve
Short distance
Punto di ssaggio
Fixing point
Movimento assiale
Axial movement
Distanza
media
Medium
distance
Tiranti limitatori
Limit rods
Piccolo
movimento
laterale
Small
lateral
movement
Piccolo
movimento
laterale
Small
lateral
movement
Ampio
movimento
laterale
Large
lateral
movement
Ampio
movimento
laterale
Large
lateral
movement
Guide
Guides
Guide
Guides
Guide
Guides
Punto di ssaggio
Fixing point
Tiranti limitatori
Limit rods
Movimento assiale
Axial movement

3.696.5275.210
2

3.696.5275.210 3
Installation, Operation and Maintenance Manual
Spirax Sarco Clean Steam Generators
(CSM-C Series - Compact)
Contents Page
Indices 3
Safety Information 4
Responsibility 8
Information 8
Controls 9
Construction 9
Nameplates 10
Insulation 10
Heat Exchanger 10
Components 11
Warranty Information 11
General Notes and Warnings 11
Product Features and Specications 13
Installation, Transporting and
Unpacking the Unit 13
Local Requirements 13
Examining the Unit 13
Mounting the Unit 14
Preliminary Procedures 14
Connecting the Feed Water Source
and Generated Clean Steam Outlet 14
Feed Water Supply 14
Generated Clean Steam Outlet 15
Ancillary Service 16
Connecting the Primary Supply 16
Connecting the Condensate
Return Line 17
Piping the Safety Valve to Vent
and Drain 17
Connecting Electro-Pneumatically
Activated Controls 18
Connecting the Drain / Bottom
Blowdown Line 18
Main Power Supply 20
Grounding the Cabinet 20
Installing Power Input Lines 20
Installation Completion 21
Commissioning 21
Commissioning Procedure 21
Shutdown Operating Procedures 22
Contents Page
Emergency Shutdown Procedure 22
Daily Operation - Steam Generator 22
Bottom Blowdown 22
Water Quality 23
Feed Water 24
Water Temperature in
Pre-Heating/Degassing Tank 25
Water Level in
Pre-Heating/Degassing Tank 25
Clean Steam Pressure 25
Fault Finding Procedure 26
Maintenance 30
Power Connections - Rewiring 30
Pneumatic (Instrument Air)
Connections - Retting 30
Heat Exchanger Coil and Gaskets 30
Inlet, Outlet and Condensate /
Water Return Line and Manual
Shutoff Valves - Replacement
32
Pressure Gauge
(Primary Supply) - Replacement 33
Traps (Main and Auxiliary) -
Replacement 34
Strainer - Inspection and Replacement 35
Clean Steam Components 36
Pressure Safety Switch 36
Steam Pressure Transmitter 38
Pressure Safety Valve (Generator) 39
Pressure Gauge 39
Level Measurement 40
Clean Feed Water Pump 41
Piston Valves 43
Actuator PN9000 Series 44
Modulating Control Valve 45
Electric Pneumatic Positioner 46
Control Cabinet 47
Recommended Maintenance Schedule 48
Parts List 49
Appendix A - Bolt Torque Procedure 50

3.696.5275.210
4
Safety information
Safe operation of these products can only be guaranteed if they are properly installed,
commissioned, used and maintained by qualied personnel (see paragraph ‘permits
to work’ page 6) in compliance with the operating instructions. General installation
and safety instructions for pipeline and plant construction, as well as the proper use
of tools and safety equipment must also be complied with.
Safety note - Handling precautions
PTFE
Within its working temperature range PTFE is a completely inert material, but when
heated to its sintering temperature it gives rise to gaseous decomposition products or
fumes, which can produce unpleasant effects if inhaled.The inhalation of these fumes
is easily prevented by applying local exhaust ventilation to atmosphere as near to their
source as possible.
Smoking should be prohibited in workshops where PTFE is handled because tobacco
contaminated with PTFE will during burning give rise to polymer fumes. It is therefore
important to avoid contamination of clothing, especially the pockets, with PTFE and to
maintain a reasonable standard or personal cleanliness by washing hands and removing
any PTFE particles lodged under the ngernails.
VITON
If Viton has been subjected to a temperature approaching 315°C (599°F) or higher it
may have decomposed and formed hydrouoric acid. Avoid skin contact and inhalation
of any fumes as the acid will cause deep skin burns and damage the respiratory system.
Referring to the Installation and Maintenance Instructions, name-plate and Technical
Information Sheet, check that the product is suitable for the intended use / application.
The products listed in the table on page 5 comply with the requirements of the
European Pressure Equipment Directive 97/23/EC, carry the mark when so required
and fall within the Pressure Equipment Directive categories stated.
i) The products have been specically designed for use on steam, air or condensate,
which are in Group 2 of the above mentioned Pressure Equipment Directive.
The products’ use on other uids may be possible but, if this is contemplated, Spirax
Sarco should be contacted to conrm the suitability of the product for the application
being considered.
ii) Check material suitability, pressure and temperature and their maximum and minimum
values. If the maximum operating limits of the product are lower than those of the system
in which it is being tted, or if malfunction of the product could result in a dangerous
overpressure or overtemperature occurrence, ensure a safety device is included in
the system to prevent such over-limit situations.
iii) Determine the correct installation situation and direction of uid ow.
iv) Spirax Sarco products are not intended to withstand external stresses that may be
induced by any system to which they are tted. It is the responsibility of the installer
to consider these stresses and take adequate precautions to minimise them.
v) Remove protection covers from all connections and protective lm from all name-
plates, where appropriate, before installation on steam or other high temperature
applications.

3.696.5275.210 5
Pressure Equipment Directive Classication
Spirax Sarco Clean steam generators are classied under table 5 of the pressure equipment
directive.
Product Group 2 Gases
CSM-C 300 Cat 3
CSM-C 600 Cat 3
Other component parts within the package comply with the relevant European
directives where necessary, please refer to component literature for further details.
Access
Ensure safe access and if necessary a safe working platform (suitably guarded) before
attempting to work on the product. Arrange suitable lifting gear if required.
Lighting
Ensure adequate lighting, particularly where detailed or intricate work is required.
Hazardous liquids or gases in the pipeline
Consider what is in the pipeline or what may have been in the pipeline at some previous time.
Consider: ammable materials, substances hazardous to health, extremes of temperature.
Hazardous environment around the product
Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases, extremes
of temperature, hot surfaces, re hazard (e.g. during welding), excessive
noise, moving machinery.
The system
Consider the effect on the complete system of the work proposed. Will any proposed action
(e.g. closing isolation valves, electrical isolation) put any other part of the system or any
personnel at risk?
Dangers might include isolation of vents or protective devices or the rendering ineffective
of controls or alarms. Ensure isolation valves are turned on and off in a gradual way to
avoid system shocks.
Pressure systems
Ensure that any pressure is isolated and safely vented to atmospheric pressure. Consider
double isolation (double block and bleed) and the locking or labelling of closed valves.
Do not assume that the system has depressurised even when the pressure gauge indicates
zero.

3.696.5275.210
6
Temperature
Allow time for temperature to normalise after isolation to avoid the danger of burns and
consider whether protective clothing (including safety glasses) is required.
PTFE seals - If seals made from PTFE have been subjected to a temperature approaching
260°C (500°F) or higher, they will give off toxic fumes, which if inhaled are likely to cause
temporary discomfort. It is essential for a no smoking rule to be enforced in all areas where
PTFE is stored, handled or processed as persons inhaling the fumes from burning tabacco
contaminated with PTFE particles can develop ‘polymer fume fever’.
VITON seals - If the Viton seat has been subjected to a temperature approaching 315°C
(599°F) or higher it may have decomposed and formed hydrouoric acid. Avoid skin
contact and inhalation of any fumes as the acid will cause deep skin burns and damage
the respiratory system.
Tools and consumables
Before starting work ensure that you have suitable tools and / or consumables available.
Use only genuine Spirax Sarco replacement parts.
Protective clothing
Consider whether you and /or others in the vicinity require any protective clothing to protect
against the hazards of, for example, chemicals, high / low temperature, radiation, noise,
falling objects, and dangers to eyes and face.
Permits to work
All work must be carried out or be supervised by a suitably competent person.
Installation and operating personnel should be trained in the correct use of the product
according to the Installation and Maintenance Instructions.
Where a formal ‘permit to work’ system is in force it must be complied with. Where there
is no such system, it is recommended that a responsible person should know what work is
going on and, where necessary, arrange to have an assistant whose primary responsibility
is safety. Post ‘warning notices’ if necessary.
Handling
Manual handling of large and /or heavy products may present a risk of injury. Lifting, pushing,
pulling, carrying or supporting a load by bodily force can cause injury particularly to the
back. You are advised to assess the risks taking into account the task, the individual, the
load and the working environment and use the appropriate handling method depending
on the circumstances of the work being done.
Residual hazards
In normal use the external surface of the product may be very hot. If used at the maximum
permitted operating conditions the surface temperature of some products may reach
temperatures of 185°C (365°F).
Many products are not self-draining. Take due care when dismantling or removing the
product from an installation (refer to ‘Maintenance instructions’).
Freezing
Provision must be made to protect products, which are not self-draining against frost
damage in environments where they may be exposed to temperatures below freezing point.

3.696.5275.210 7
Disposal
This product may contain PTFE and Viton, special care must be taken to avoid potential
health hazards associated with decomposition / burning of these materials. With the
exception of the seal materials unless otherwise stated in the Installation and Maintenance
Instructions, this product is recyclable and no ecological hazard is anticipated with its
disposal providing due care is taken. However, all components should be checked
individually to ensure they can be disposed of safely.
PTFE:
- Can only be disposed of by approved methods, not incineration.
- Keep PTFE waste in a separate container, do not mix it with other rubbish, and consign
it to a landll site.
Viton:
- Waste parts can be landlled, when in compliance with National and Local regulations.
- Parts can be incinerated, but a scrubber must be used to remove Hydrogen Fluoride,
which is evolved from the product and with compliance to National and Local regulations.
- Parts are insoluble in aquatic media.
Returning products
Customers and stockists are reminded that under EC Health, Safety and Environment Law,
when returning products to Spirax Sarco they must provide information on any hazards
and the precautions to be taken due to contamination residues or mechanical damage
which may present a health, safety or environmental risk.
This information must be provided in writing including Health and Safety data sheets relating
to any substances identied as hazardous or potentially hazardous.

3.696.5275.210
8
Responsibility
This Installation, Operation, and Maintenance Manual is intended to be as complete and
up to date as possible. It covers the installation, operation, and maintenance procedures
for Spirax Sarco Clean Steam Generators (CSM-C Compact Clean Steam Generator
Series). Spirax Sarco reserves the right to update this manual and other product information
concerning installation, operation, and/or maintenance, at any time and without obligation
to notify product owners of changes.
Spirax Sarco is not responsible for inaccuracies in specications, procedures and/or the
content of other product literature, supplied by other manufacturers of components used
in Spirax Sarco Steam Generators (i.e.: valves, pressure controls, gauges, etc.).
Spirax Sarco uses only the highest quality components in building the Compact Series
Steam Generators; only in the supply of a full clean steam package will Spirax Sarco
assume responsibility for the unit and the clean steam produced. Alternately Spirax Sarco
will only be responsible for the products directly supplied.
Note: The symbol ∆ denotes warnings.
∆ Spirax Sarco is not responsible for injury to personnel or product damage
due to the improper installation, operation, and / or maintenance of Spirax Sarco
Compact Clean Steam Generators.
All installation, operation, and maintenance procedures should only be performed by
trained/certied personnel. All personnel performing these procedures should completely
and carefully read and understand all supplied materials before attempting the procedures.
All personnel should pay strict attention to all Notes, Cautions, and Warnings that appear
within the procedures detailed in this manual.
Information
This Installation, Operation, and Maintenance Manual is designed as a procedural guide
for Spirax Sarco Compact Clean Steam Generators.

3.696.5275.210 9
Energy and Power Sources for Generating Steam
Spirax Sarco Compact Clean Steam Generators can be congured and manufactured to
use one (1) of two (2) possible energy sources for generating clean steam: (HTM 2031).
Steam:
Electricity
∆ Note: Most Spirax Sarco Compact Clean Steam Generators use steam as the
energy source for generating clean steam. Therefore, procedures detailed in this
manual will be geared towards the installation, operation, and maintenance of steam
powered units.
When procedures differ substantially for the installation, operation, and /or maintenance of
units powered with electricity, notes will be included giving specic instructions for those
units.
The following table lists the range of acceptable pressures and temperature at the inlet
for each energy source.
Energy source Maximum Temperature °C /
Degree Centigrade
Maximum pressure
bar g
Steam 184°C 10 bar g
Electricity Upon request N/A
∆ Note: Consult the design specications for the unit, as well as the nameplate
attached to the exterior of the pressure vessel and individual specication tags on
pressure related components and controls, for design specications and maximum
pressure for the unit.
Controls
Spirax Sarco Steam Generators are equipped with both electronically and pneumatically
activated controls to regulate pressure (temperature) and water level. The electronic
PLC control panel used, depending on individual design specications, has a power
requirement of 380 volt three phase. Pneumatic controls, depending on individual design
specications, require instrument air pressures of 8 bar g (120 psi). Consult the individual
design specications for the unit and controls for the exact requirements.
Construction
All Spirax Sarco Compact Clean Steam Generators are constructed from superior materials
and utilize only the highest quality components. All parts in contact with generated steam
are S.S. 316L. Each Compact Steam Generator meets or exceeds all applicable V.S.R
code (Vessel Security Rules) regulations and are built to conform to 97/23/CE Directive.
Each Spirax Sarco Compact Clean Steam Generator is equipped with a approved
safety valve and an external drain, providing a means to remove accumulated sediment.

3.696.5275.210
10
∆ These numbers should be included in all correspondence regarding the unit.
Insulation
All Spirax Sarco Compact Clean Steam Generators have insulation on the feedwater tank,
generator shell and pipework.
Heat Exchanger
The U-Bundle heat exchanger is manufactured with stainless steel AISI 316L tubesheet,
the connection piece used to mount the U-bundle in the generator body is also constructed
from AISI 316L.
Nameplates
A nameplate, mounted to the generator body, bears the model and serial numbers of the
steam generator unit, whilst a nameplate mounted on the skid bears the package number
with approval (Fig. 1).
Fig. 1
Package nameplate
Generator nameplate
Fig. 2

3.696.5275.210 11
Components
All other components included in CSM-C Steam Generators have been specically selected
to meet the individual design specications of each unit and HTM 2031.
Spirax Sarco has all components to control the steam generators and they are judged to
be of the highest quality.
Warranty Information
All components used in Spirax Sarco Steam Generators are warranted for one (1) year
from commissioning or eighteen (18) months from date of delivery, whichever comes rst.
In some cases, extended warranties are available on an individual basis, at extra cost.
General Notes and Warnings
• This manual is intended to cover installation, operation, and maintenance procedures
for Spirax Sarco CSM-C Compact Steam Generators. If specic installation, operation,
and / or maintenance procedures are not clearly understood, contact Spirax Sarco for
clarication before proceeding.
• All installation, operation, and maintenance procedures should be performed only by
experienced, trained, and certied personnel. Personnel should be trained in correct piping
and electrical procedures and methods, and should be experienced in working with steam
and thermal oil/superheated water systems. Spirax Sarco CSM-C Steam Generators are
designed for indoor use only, unless otherwise required by design specications. Each
unit requires at least one metre clearance at the front and rear, and 500 mm above the
unit. It should be located on a level surface (no more than one-half degree [½°] of slope),
capable of supporting the total weight of the unit when lled to capacity. The unit should
be mounted to the oor following applicable architectural and local code requirements
for the specic installation site. In areas prone to seismic activity, it is recommended that
the unit be mounted to the oor according to recommended procedures and codes for
the site / location, to make the units less susceptible to seismic damage.
• Fault nding and maintenance procedures are detailed starting on page 26.
• CSM-C Steam Generators are available in a various range of operating pressures and
ow rates. For the specic ranges for your unit, refer to the design specications and
accompanying literature and drawings supplied with the unit.
• Should the unit be damaged during installation, operation, or maintenance, complete the
following steps.
1. Turn off the power to the unit.
2. Turn off the primary supply inlet (steam) valve.
3. Turn off the condensate water return valves.
4. Turn off the clean steam outlet valve (if present).
5. Turn off feed water inlet valves.
6. Contact in-house maintenance personnel.
All pipework connections for clean steam and water should be anged or sanitary design,
type of gasket material should be suitable for clean steam applications.
∆ Warnings:
As with any piece of equipment that utilizes steam under pressure, as well as
electricity, the potential exists for severe personal injury if proper installation,
operation, and maintenance procedures are not followed.

3.696.5275.210
12
Listed on the following pages are specic warnings pertaining to Spirax Sarco Steam
Generators. In addition, throughout this manual, warnings are restated when procedures
are described pertaining to areas of potential danger. All warnings should be carefully read
and understood. All precautions contained in the warnings should be carefully followed to
reduce the chance of injury.
∆ Areas of potential danger:
1. all steam water lines, joints, valves;
2. all power connections and cables;
3. all pneumatic (instrument air) lines and joints.
∆ Before attempting any installation, operation, or maintenance
procedures pertaining to the unit:
1. Ensure that the primary supply (steam) has been turned off at the manual shut off
valve;
2. If the unit has been in operation, allow the clean steam and water in the tank, as well
as all components and surfaces (outlet steam lines, energy source inlet lines, etc.) to
cool;
3. Ensure that all power has been shut off / disconnected;
4. Ensure that all incoming and outgoing steam, condensate, and energy source lines
have been isolated at the manual shutoff valves;
5. Ensure that the pneumatic (instrument air) source has been isolated and the pressure
bled from the lines.
∆ Operating conditions can be very dangerous due to the fact that the steam is
under pressure and at very high temperatures.
To avoid possible injury or death, follow all accepted and recommended procedures
when performing installation, operation, and maintenance procedures.
∆ The combination of electricity and water can pose a very dangerous situation.
Assure that all power has been shut off / disconnected before attempting any
installation or maintenance procedures.

3.696.5275.210 13
Product Features and Specications
CSM-C family of Steam Generators, employing the U-Bend heat exchanger coil(s),
are the most economical method of furnishing clean steam when steam is used as the
energy source. All Spirax Sarco Compact Steam Generators are Packaged and ready
for installation. All components are sized, mounted, piped, and tested prior to shipment.
Each unit is built to exact design specications and requires only connection to energy,
water, power, safety discharge, blowdown discharge line and / or pneumatic sources to
be ready for operation. The packaging concept provides a compact size that is ideal for
new installations, or for use as replacement of existing steam generators. The compact
size requires less space for installation. Each unit employs a Stainless Steel feed water
heating tank and generator body. All components used in the unit are of highest quality
and meet all design requirements. Each Compact Steam Generator is accompanied by
this Installation, Operation, and Maintenance Manual, as well as all documentation of
each major component. If any of these documents are missing, contact either Spirax
Sarco or your authorized sales representative before attempting installation, operation,
or maintenance procedures.
Installation Transporting and Unpacking the Unit
CSM-C Compact Steam Generators are usually shipped uncrated, the units can be lifted
by means of a forklist truck, placing the forks on the underside of the frame structure, in a
central position thus evenly distributing the units weight and providing a stable, balanced
load, refer to Fig. 3.
∆ If crated when shipped, the unit should only be lifted at the areas indicated
on the crate. Improper lifting of the unit may result in damage to the unit.
Location Requirements
CSM-C Compact Steam Generators are designed for indoor use only, unless otherwise
required by the design specications. The unit should be located on a level surface (no
more than one-half degree [½°] of slope), capable of supporting the total weight of the unit
when lled to capacity. If crated when shipped, the crating should be carefully removed.
The unit can then be manoeuvered into place using the mounted wheels, safely installed
and then secured using the four footmounts.
Examining the Unit
After the unit has been set in place, it should be carefully examined to assure that neither the
main unit nor any of the components have been damaged during shipping. If any evidence
of damage is detected, contact Spirax Sarco or your authorized sales representative, to
report the damage and to receive instructions on how to proceed. After the unit and all
components have been inspected for damage. It is suggested that all pressure and control
components be checked to assure that they are to design specications. This can be
done by reviewing the design specications (included with the unit) and the specication
tags / plates attached to each component. Contact Spirax Sarco or your authorized sales
representative, before proceeding with the installation.
Fig. 3
Example

3.696.5275.210
14
Mounting the Unit
The unit should be mounted to the oor using the four individual footmounts supplied,
following applicable local code requirements, or accepted standards for the specic
installation site and for the unit purchased. In areas prone to seismic activity, it is
recommended that the unit be mounted to the oor, according to recommended procedures
for the site, to make the units less susceptible to seismic damage.
Preliminary Procedures
Spirax Sarco packaged Steam Generators are installed following this simple procedure:
1. Connect the feed water supply to the feed water inlet;
2. Connect the generated clean steam outlet to the clean steam outlet;
3. Connect the safety valve and discharge to a safe area;
4. Connect the primary supply (steam or high temperature water) to the unit;
5. Connect the condensate or return water line to the return pipework;
6. Connect the applicable power supply (if the unit is packaged with an electrically activated
pressure or control component);
7. Connect the appropriate instrument (control) air supply;
8. Connect the Drain / bottom blowdown connection to the correct system pipework;
Each unit is supplied with drawings that indicate the location and specications for each
connection that must be made.
In addition, the drawings indicate the ow direction of both the steam and primary supply.
Connecting the Feed Water Source and Generated Clean Steam
Outlet
∆ Note: Before making any connections of feed water inlet or generated clean
steam outlet to the unit, assure that all pipework is clean and free of foreign material
or, scale. This can usually be accomplished by “blowing out” the pipe. Any foreign
material or scale entering the unit can adversely affect operation and performance.
∆ The drawings used in this manual are only examples. For the connections of
the ordered generator always refer to the drawings attached to the generator.
Feed Water Supply
The rst step in the installation process is to connect the feed water supply to the feed
water inlet connection (Fig. 4).
The exact location for this specic unit, as well as pipe diameter, can be determined from
the drawings supplied with the unit.
A manual shutoff valve should be installed upstream on the feed water source as an
isolation device. The shutoff valve should be in the closed position and remain so until
the instalation is complete.
∆ Note: All pipework connections for clean steam and water should be anged
or sanitary design, type of gasket material should be suitable for clean steam
application.

3.696.5275.210 15
Generated Clean Steam Outlet
The next step in the installation process is to connect the generated steam system pipework
to the clean steam outlet port. The exact location of this port for the specic unit, as well as
outlet pipe diameter or ange size, can be determined from drawings supplied with the unit
(Fig. 5). A manual shutoff valve should be installed downstream on the generated clean
steam line for isolation purposes in case the unit must be disconnected from the system.
The shutoff valve should be in the closed position and remain so until the installation is
complete.
∆ Note: Refer to local regulations and specications for site specic shutoff
and check valve requirements.
Note: All pipework connections for clean steam and water should be anged or
sanitary design, type of gasket material should be suitable for clean steam application.
Cold feed water
Clean steam outlet
Fig. 4
Fig. 5

3.696.5275.210
16
Ancillary Service
Spirax Sarco recommends the installation of sample point throughout the system.
HTM 2031 also species that throughout the process of generation, system sample points
should be located at the followings points as a minimum.
These points will allow an easy sampling and testing system.
- Mains water
- Treated water (sample points between stages)
- Feed Water / Boiler water
- Steam generator water
- Steam at point of use
For further information contact Spirax Sarco.
Connecting the Primary Supply (Steam)
∆ Possible injury or death.
Assure that a manual shutoff valve is installed upstream in the steam line (energy source),
and that it is functioning properly. If any doubt exists concerning the integrity of the shutoff
valve, replace the valve before attempting installation. All primary supply valves should be
closed and remain closed throughout the installation process. Connect the primary supply
to the line(s) leading to the pressure control valve (Fig. 6).
The exact location of the pressure control valve for the specic unit, as well as primary
supply pipe diameter, can be determined from the drawing supplied with the unit.
Plant steam
Fig. 6