Manual - Atlantic Boilers
Contents
1. To prevent entry of excess air into the combustion chamber from ped qu 3 outside the burner installation should performed carefully to prevent LEA _ m leakage l The fuel used for operating should comply with burner manufacturer recommendations It should be calculated as Burner firing power Boiler capacity Boiler BOILER TYPE TRP70 TRP 117 TRP 175 TRP233 TRP291 TRP350 TRP407 TRP 466 TRP582 TRP 700 TRP 814 TRP932 sales personnel about the burner selected to ensure that the boiler door and connection flange is designed in compliance with the burner Use a burner with an appropriate barrel length in your boiler The burner barrel tip must enter the burning chamber for a minimum FUEL SELECTION AND STORAGE of 30mm n l e Fuel complying with the characteristics indicated in the burner user Burner operation and safety system must conform to the boiler control E panel manual or burner vendor catalogues should be obtained Fuel transfer lines should conform to current technical specifications regulations and standards The fuel tank burner axis levels should not exceed figures specified in the burner user manual Our boiler can be used with single increment double increment or modular burner Fuel tanks should comply2. shut off the burner and shut down burner electricity Make sure the boiler personnel are certified boiler operators e Make sure that water conforming to EN 12953 10 is used in the boiler See page 38 e Boiler water temperature is designed for 90 70 C Install a safety system to prevent water the temperature from exceeding 100 C Perform the inspection and maintenance activities of the boiler thoroughly e The boiler chimney should be built in compliance with chimney building rules Airbrick and briquette should not be used in boiler chimneys The fuel used must conform to the standards and regulations in effect e The conformance of the chimney gas emission values to the national and international standards and regulations in effect must be ensured and checked In closed expansion systems the expansion tank gas pressure should be checked to be equal to that of the building static water height and the operation of the safety valve should be tested at opening pressure Have the initial operation of the burner performed by authorized service of related burner company The burner capacity adjustment should be made as per the label capacity of the boiler and the boiler efficiency value stated by the manufacturer firm for the boiler A burner adjustment above the boiler label value should not be allowed If abnormal noises are heard from the boiler or the installation the burner should be stopped immediately and the fuel inlet
3. 1541 5 Q 1000 mm dg 15 Qx 1000 mm Monitor 1 2 It is strongly recommended to place a circulation connection and tap between the outflow safety pipe and expansion tank No hardware such as valve or check valve that clog the circulation should be placed on the safety valves The volume of the expansion tank is calculated based on the expansion as a result of the temperature rise of the water in the entire system from 10 C to tm C The expansion tank volume in systems with normal hot water of 90 70 C can be taken as Vi 0 06 Vs liter Vs is the total water amount in the system in liters Vs W Ok liter Qk Boiler thermal power kW COMBUSTION CHAMBER DIMENSIONS BURNER SELECTION AND INSTALLATION ARAN To achieve efficient combustion the burner to be attached to the N S boiler should be selected in compliance with forming an appropriate TUO SNC flame for the combustion chamber defined in the boiler technical E i specifications section m y 7 During the installation of the burner care should be shown to match va a c burner nozzle axis with combustion chamber axis SN Ex SEE Der EE XT
4. of non flammable material e The burner the boiler control panel if any and the pre heater connections should be performed by eligible technical personnel in compliance with the burner user manual and vendor installation diagram e The boiler must be used with the boiler control panel We also recommend a thermometer to be placed on the 12 sleeve located on the boiler return pipe A hydrometer open expansion or manometer closed expansion should be placed on the boiler outlet pipe or collector e The boiler may be used in an open or closed expansion system In case it is used in a closed expansion system a closed expansion tank suitable for the total boiler and central heating water volume should be used at building static water level pressure and with adjusted gas side pressure The closed expansion tank should be connected to the expansion nozzle directly on the boiler or to the boiler main outlet or return pipe provided that there is no stop gate valve A pressure relief valve with opening pressure of 1 05 bars over the boiler operating pressure should be used e More than one boiler should not be connected to the same chimney The boiler must be provided with a chimney and smoke channel in compliance with the regulations and standards of the authorized institutions regarding the fuel and smoke gas debit used e Our boiler has been designed for 90 70 C stabilizing container and secondary circulation pump must be used in the
5. should be closed The investigation and repair of the malfunction should then be made If leakages are observed on the burner fuel attachments and transfer lines the burner should be immediately stopped and line valves should be closed If natural gas or LPG is used use a leakage detector device in the boiler room and an automatic fuel cut off system on the main inlet e If LPG is used when icing and dew is observed on the fuel pipes due to the liquidizing of residual gas in fuel pipes from the previous night O especially on cold days the burner should absolutely not be used The LPG should be carefully discharged from the drain tap Liquidizing may also form at normal times due to gasification level control or line regulator problem In cold climate regions measures should be taken to prevent the installation water temperature from falling to freezing temperature Circulation pump should be operated continuously at workplaces that are closed at night and during weekends If heating is to be stopped for a long period of time the boiler and system water should be discharged Antifreeze should not be used Antifreeze causes corrosion and a decrease in water thermal capacity If the burner malfunctions burner computer reset button should not be pressed more than two times If the burner still does not work the related authorized service should be called PUTTING BOILER IN OPERATION e Before the liquid gas fuel heater boiler
6. to meet the combustion air requirements of the boiler The boilers should be completely cleaned from internal and external dust soot etc The smoke channel smoke pipe and chimney cleaning doors should be checked and leakages should be prevented O The fuel heaters when used with liquid fuel and burner fuel connections should be checked for leakage In gas fuel applications the conformance of the provided gas pressure to the relevant burner and boiler and if it has a seal the functional operation of the control system should be checked The fuel filters should be cleaned heater thermostats should be set to correct value fuel valves should be set full and open The fuel combustion system should be reviewed with respect to the system s working principles and each element should be controlled for proper operation The boiler explosion door should be checked for proper operation Boiler safety devices manometer hydrometer safety valve visual and sound warning system etc should be reviewed to ensure proper operation SAFETY RULES Use the boiler only for hot water production for the closed circuit heating system Use the boiler complying with warnings and recommendations in this procedure Have the heating system installed by authorized personnel Have the boiler electrical connections made by authorized personnel Do not operate boiler without water When opening the front door and the front smoke chest door
7. valve with a manometer If the pressure is excessive it should be discharged from the related valve if it is insufficient nitrogen gas should be added by the expansion tank authorized service If water comes out from the valve during the check instead of gas or air this means the tank diaphragm is torn and it should be changed by contacting an authorized service DISCHARGE OF BOILER WATER e After a season s utilization the boilers should be cleared of gasket remains mud and residue in the heating system e The blind flanges at the lowest level of the main distribution and collection reservoir and boiler filling discharge tap are opened and the system and boiler water is rapidly flushed out e After cleaning operation the system should be filled with water as described in the article filling the system with water e The boiler water should not be discharged at any time except pre operation cleaning and water should not be added to the boiler except for the purpose of compensating any depletion in the expansion tank TAKING BOILER OUT OF OPERATION The taking of boiler out of operation should be as follows e The burner is stopped and boiler surfaces are cooled e The soot and smut in the boiler the cover smoke chest and the smoke pipes should be cleaned e The cleaned surfaces should be checked under strong light to detect damages like leakages oozing cracks etc If such damages exist the authorized services ar
8. with the standards There must be a wall between the fuel tank and the boiler If fuel oil is being used especially of a heavier group the necessary arrangements RING LINE and heating installation should be prepared for flow of fuel from the tank to the burner BEFORE OPENING THE FRONT DOOR SHUT OFF THE BURNER AND SHUT DOWN BURNER ELECTRICITY FILLING THE SYSTEM WITH WATER The boiler should be filled with water before operation The boiler should not be operated before it is filled with water To fill the boiler with water the main distribution and collection pipes the boiler feeding pipes installation column valves should be opened fully water should be let in from the filling discharge tap and it should be filled slowly until water starts coming from the monitor pipe of the Expansion Tank In closed expansion systems during water filling from boiler filling discharge tap the air discharge tube valves and mechanical purgers should be opened and then closed when it is observed that the incoming water does not have bubbles When the air tube at the top most level of the installation or at the roof is completely filled with water filling will be completed The circulation pump should not be operated during the filling process The expansion tank connections should conform to the installation circuit diagram DO NOT OPERATE BOILER WITHOUT WATER PREPARATION OF BOILER FOR OPERATION The boiler room must be designed
9. Liquid gas fuelled TR P central heating boiler installation operating and maintenance manual ADDRESS ATLANTIC BOILERS PO BOX AT LA N Tl C 11 ASHTON UNDER LYNE OL6 7TR B O LE R S WEB WWW ATLANTICBOILERS COM EMAIL INFO ATLANTICBOILERS COM HIGH EFFICIENCY CONDENSING BOILER PLANT TEL 0161 621 5960 FAX 0161 621 5966 CONTENTS o Properties of liquid gas fuelled boilers o Introduction team o Boiler dimensions ener o Boiler operating personnel esee o Transportation and temporary storage esee Bollerihstallationscee d qii tav err Er C Unc KL End o Expansion tank and safety pipes Burner selection and installation o Combustion chamber dimensions o Fuel selection and storage o Filing the system with water ssssessssssrrsrsssss o Preparation of the boiler for operation o Safety rules qu iioi e beoe E erc RR o Operating the boiler ssssse o Heating system adjustments e eere o Discharging the boiler water eesee o Stopping the boiler i o Prevention of low temperature corrosion o Inspection and maintenance of boiler o General maintenance eeeeeeeseee enne
10. Way Valve or 4 way Valve should be used in the heating system Soot and smut gathering on the heating surfaces combustion chamber smoke pipes smoke chest should not be allowed cleaning process should be performed as frequently as possible The burner should not be stopped and started frequently Combustion should be controlled and ensured to be efficient The burner settings should be done by the authorized service and if a re setting is required the related burner service should be contacted INSPECTION AND MAINTENANCE OF BOILER 1 General Maintenance Heating system boilers should be subjected to general maintenance at least once a year The following points should be checked during general maintenance e The operation of boiler armatures thermostat thermometer hydrometer manometer should be observed continuously and in case of malfunction the required controls should be done and if needed they should be changed Heat transfer should be improved by filling the thermometer cartridges with thin lubricant e All connections in the system should be controlled for proper insulation leakages and oozing should be repaired and if needed the valve gaskets should be reinforced O e The boiler front big door and the front and rear smoke chest insulation elements should be checked continuously if leakage exists the tightening elements and nuts should be tightened in balance if leakage is not stopped gasket sealant should be chang
11. and safety devices on the system The boiler operator should have an official document boiler operator certificate verifying his expertise on the abovementioned issues MAKE SURE THAT THE BOILER PERSONNEL POSSESS BOILER OPERATOR CERTIFICATE TRANSPORTATION AND TEMPORARY STORAGE e The boiler should be transported using the lifting and transportation points by detaching the top isolator sheet and appropriate equipment For horizontal movement where it is not possible to utilize a winch horizontal displacement is possible through controlled sliding on pipes e The boiler should be protected against mechanical blows and collisions during loading transportation and unloading It must be protected against damages resulting from moisture and external mechanical factors that may arise during temporary storage before transportation and installation USE THE BOILER COMPLYING WITH WARNINGS AND RECOMMENDATIONS IN THIS PROCEDURE BOILER INSTALLATION Install the boiler in the boiler room at the installation site on a foundation elevated from the floor Make the boiler mechanical connections as per the installation circuit diagram Boiler installation site should comply with the related standards and procedures It must have a door opening to the outside a fresh air inlet duct at floor level and a polluted air discharge chimney duct at ceiling level apart from the boiler chimney The door and the window frames must be
12. densation in smoke gas Incorrect burner selection and high setting Operation without or with deficient turbulence maker incorrect burner setting and selection If the circulation pump is set for cycle the cycle should be reduced if it has one cycle the valve should be reduced and regulation should be conducted or should be replaced with an appropriate pump Get an authorized service to check your burner The boiler should not be operated with low heat the smoke gas at the boiler output should not be below 70 C a valve with 3 or 4 ways should be used the thermostat settings of the boiler should be high The condensed water should be drained from the lowest level of the smoke chest via a connection Burner replacement repair to appropriate barrel measurement and burner adjustment are necessary In liquid fuel leakage and accumulation into the burning chamber should be prevented Turbulence maker should be attached or its deficiencies should be completed the burner setting should be done correctly and appropriate burner should be provided BOILER CONTROL PANEL INSTALLATION INSTRUCTIONS Flax the 2 pieces of Y2 brass cartridges supplied with the CP and install them on the sleeves on the outlet pipe of the boiler with proper insulation Stop the empty sleeves with 2 blind plugs Disassemble the CP body into two pieces removing the 4 connection screws Check that the marked 375x48 mm sectio
13. e notified and the necessary repairs are done e The liquid fuel between the burner and the main fuel tank should be discharged and the fuel system should be cleaned with kerosene e Active lime should be sprinkled into the combustion chamber smoke pipes and smoke channels e The chimney cleaning flap should be brought to fully open position It should be closed down after the chimney cleaning e The damaged heat insulators should be repaired e The burner maintenance should be done as per manufacturer recommendations e During non operational period the boiler room temperature should be kept at min 5 C e The boiler and system water should not be discharged if it is not a necessity Corrosion formation should be prevented In long term idle states and at end of the heating season appropriate chemical protective additive should be added to system water to prevent negative effects of the oxygen in water on the metal surfaces PERFORM THE INSPECTION AND MAINTENANCE ACTIVITIES OF THE BOILER THOROUGHLY 011010 24 PREVENTION OF LOW TEMPERATURE CORROSION e The boiler pipes should not be allowed to burst due to low temperature corrosion formation To prevent this Liquid fuel with low sulphur content should be used e To prevent condensation of the gasses that pass from the boiler surfaces and the smoke pipes boiler water outlet temperature should not drop below 60 C and smoke gas temperature below 70 C 3
14. ed or our authorized services should be contacted Grease the bolt screws and nuts of tightening elements Perform the cleaning of the boiler combustion room smoke pipes and smoke chest at least every 15 days in the case of liquid fuel usage and at least every 60 days in the case of gas fuel usage The turbulators should be taken out and all pipes should be cleaned with a suitable mop Turbulators should be reinstalled in place after cleaning For full boiler efficiency all turbulators should be installed At the end of season the boiler should be cleaned fully as in periodical cleaning Boiler heating metallic surfaces should be protected against oxidation by applying transformer oil or a thin metallic lubricant The boiler and system water should not be discharged if it is not a necessity At end of season appropriate chemical protective additive should be added to system water to prevent negative effects of the oxygen and similar corrosive elements in water on the metal surfaces Temperature gages are compared to a calibrated thermometer Safety elements outlet and return safety pipes and safety valves are checked for proper operation e The mud and residuals at bottom of liquid fuel tanks are cleaned The controls described in article on taking boiler out of operation are performed 2 Hydrostatic Test Boiler parts such as the smoke pipe nozzle mirror should pass a hydrostatic test under an authorized mechanical engin
15. eer s supervision when replaced or every 5 years for control purposes For boilers over 1000kW Test pressure is taken as 1 5 times design pressure GENERAL BOILER MALFUNCTIONS Symptom No firing Dark black smoke from chimney in liquid fuel Drumming noise in boiler water compartment Overheating in boiler water For malfunctions listed above boiler operator personnel intervention is sufficient For malfunctions apart from these contact our authorized services Burner malfunction Air excess coefficient is low Circuit voltage low LOW fuel quality Air in system Wiring and installation error Circulation pump malfunction Thermostat malfunction Follow burner manufacturer recommendations Check the fresh air entering the boiler room or burner air setting Voltage drop will cause motor rotations to drop and result with a low fuel air mixture Get your fuel checked Discharge the air Check the connections according to the system installation circuit diagram Check circulation pump for reverse turning Check boiler thermometer for proper operation Symptom Boiler output water temperature not rising Water accumulation or leakage in smoke chest Dye burn heat rise fire cement Or turbulence maker deformation on the front door Chimney gas temperature rising High water speed Inappropriate burner selection for the boiler capacity Water wapor con
16. etermined the life span of hot water boilers as 10 years If boilers are utilized in compliance with operating and maintenance instructions it is possible to go well over the ministry stated life span Therefore make sure that this operating and maintenance procedure is read and fully applied by operating personnel When the boiler has reached unusable state remove the junk from usage area in compliance with environmental procedures
17. imensions SAC VIDA MONTAJ YER 4 2x13mm 375 Y UM i 7 BOSALTILACAK TABAN B LUM ELE t 410 65 La BOILER CONTROL PANEL ELECTRICAL SCHEMA KP 2 control panel Me LANA y na 3 77 a ly a EAS E E E E E E Manual on off switch Fuse 6A Safety thermostat With manual reset Boiler water thermometer Burner ON OFF switch 1 Level Burner ON OFF switch 2 Level 1 Level in service signal I Level thermostat 2 Level in service signal 10 II Level thermostat pU DPI d IT KP 2 ELECTRICAL SCHEMA INSTALLATION CIRCUIT DIAGRAM EXAMPLE TR P HI Hydrometer TS Thermostate 30 90 C TI Thermometer 0 120 C EV Expansion tank connection vent YS Boyler Connection vent Pump Input to the system Input to the system Return from the system Drainage N BOILER FEED WATER AND BOILER WATER CHEMICAL CHARACTERISTICS The water to be used in Hot Water boilers should conform to the table values indicated below The boiler feed water and boiler water should be checked constantly and the chemical conditions required for the water should be ensured in order to operate the boiler efficiently and economically HOT WATER BOILERS FEED WATER Hot water and Parameters Red hot water FEED water entire range entire range clean no suspended Appearance particles Conductivity at 25 C uS cm 5 C pH
18. is operated the existence of the following conditions should be controlled e The liquid fuel in main fuel tank or the daily fuel tank should be heated to the required temperature turning on the heater circuit e The valves on the liquid fuel circuit should not be opened fully e Burner nozzle should be selected to suit burner and boiler capacity e The pre heater on the burner should be filled with liquid fuel and any air in it should be discharged e The boiler thermostats should be adjusted to the appropriate value e It should be made sure that the heating system is filled with water e It should be ensured that all the valves are open by filling the system with water except the emergency circulation pump and the by pass valve Air should be discharged from the air valves and purgers in the system Circulation pump should not be operated during air discharge e Circulation pump should be started e The burner should be started from the switch on burner power panel After the burner is running nozzle pressure should be adjusted to burner and boiler power When the boiler is in steady state 1 1 5 hours after the burner has started burner air adjustment should be made using the chimney gas analysis device In the case of gas fuel burner fuel cut off valves are opened and the burner is started In fuel oil usage the burner is started after the fuel is heated in the pre heater tank Hourly fuel quantity is calculated w
19. ith the formula of B Qk Hu v B Fuel quantity per hour kg h Nm h Qk Boiler output kcal h Hu Fuel sub thermal value kcal kg kcal Nm v Boiler yield must be obtained from table on page 9 In liquid fuel applications appropriate nozzle 459 pump pressure see burner catalog should be selected In gas fuel applications the type of fuel Natural gas LPG and gas consumption according to line pressure must be checked from the relevant gauge If the boiler water is overheated the circulation pump should be controlled It may be turning in reverse due to misplaced connectors If that does not bring a solution the burner should be stopped and the installation should be checked e Open the boiler door carefully O e Protect the front door and the front smoke chest fire cement surface from collusion with hard objects skewer brush arm turbulence makers etc e During the initial firing of the boiler after manufacturing run it at a 25 30 capacity setting for about 2 hours to let the moisture in the cover fire cement be disposed of in a healthy manner HAVE THE HEATING SYSTEM INSTALLED BY AUTHORIZED PERSONNEL HEATING SYSTEM ADJUSTMENTS The boiler circulation pump should be checked for proper selection and adjustment a Pump flow should be calculated with the formula below Qp Pump flow rate Qp Qk Cp tg ta It h Qi Boiler output kcal h Cp Specific heat of water 1 kcal
20. kg C is taken as tg ta 20 C in 90 70 C system b Pump pressure Hp Mss Should be greater than the calculated critical circuit pressure of the building The pump selection should be approved by the Mech Eng responsible for the building project and the technical application Where a project and calculations do not exist or are not available regulations can be made by placing thermometers one each on the boiler outflow and return lines a manometer to the circulation pump exit and by adjustments with the help of the related pump curve through the circulation pump valves so that the water temperature difference between outflow and return lines is 209C In the case of big pump selection the outflow return temperature difference will stay below 20 C and boiler outflow temperature may not rise and in the case of small pump selection the outflow return temperature difference will be over 20 C and the high and remote radiators may not function efficiently enough The water level and pressure should be controlled by the hydrometer or manometer in the heating system every morning If it is below the normal value water should be added while the boiler is cool If it is a closed expansion system the closed expansion tank gas pressure should be controlled to be equal to the static water height of the building This control should be done on the expansion tank manometer if it is present if not it should be done from the gas side
21. n at the base is drained Pass the thermometer and thermostat sensors through this gap and place them at most 3 each in the cartridges Put light machine oil inside the casings and seal the upper part with silicon Make the electrical connection between the CP exit contact and burner contact complying with the wiring diagram with the number of connections with 0 75mm cable Open enough positions in the cross sectional area behind the CP for cable pass through and use bushings Securely screw the CP lower body onto the upper isolator sheet of the boiler with 4 4 2x13mm metal sheet screws Put the upper body of the CP in place and close it by tightening with 4 screws Ask the operating personnel to fill the boiler and system with water When the boiler and system is filled with water expansion system is controlled the circulation pump is seen to be operational you may power the control panel Make the sequential controls on the CP and declare that the burner may be started by the authorized service technician Supervise the operation of the burner by the related technician and make the functional controls of the CP elements When no adverse situations arise as a result of the functional controls and CP elements are observed to perform their tasks you can set the CP operational CONTROL PANEL DIMENSIONS Control panel external dimensions 175 Los ss Sees eos ce essed Control panel lower base installation d
22. nnnnnnnn o Fivdrostatic tes vainas tee Bi ort Colt erac alae a E o General boiler malfunctions ssssssssss o Boiler control panel installation o Boiler panel dimensions o Boiler control panel electrical schema l o System circuit diagralM cccccccnnnocononcnnnncconinnnanananononons O Boiler feed water and boiler water chemical characteristics O Boiler life SPAM O Authorized Services ive rie e oce O O O N o 10 15 16 16 17 17 18 21 22 23 23 24 25 25 26 27 29 31 32 33 34 35 36 FEATURES e TR P type hot water boilers have triple pass The heat is transferred into water by radiation in the combustion chamber where the 1 passage takes place and by convection and conduction in the smoke pipes where the 2 and the 3 passages take place e With the wet back design the heat transfer surfaces provide maximum benefit e Gas delaying turbulators increase the speed of the smoke and gases in the flame pipes and enable convection maintenance of heat transfer at optimal level liquid and gas fuelled hot water boilers which provide high efficiency with these features lower operational costs by quickly getting into the steady state BOILER OPERATING PERSONNEL Boiler operating personnel boiler operator should be knowledgeable about general boiler failures and their reparation as well as the tasks and working principles of all measurement adjustment control
23. system for different temperature applications e The number 12 condensation water sleeve located in the figures of pages 7 and 8 must be plugged with the boiler room output by attaching a hose nippel and a hose to it In order to prevent battery corrosion the boiler must be grounded with a 0 5m 2mm thick copper sheet b 0 5m 3mm thick hot dip galvanized sheet C Massive copper bar electrodes EXPANSION TANK AND SAFETY PIPES It is essential for the water not to be in direct contact with the air and the temperature not to rise above 100 C in open expansion hot water heating system There should be outflow and return safety pipes between the boiler and the expansion container fully and independently without any valves interrupting it in order to ensure the contact of water with the air and to ensure that this connection is not cut off by mistake or due to negligence The safety valves should be installed without narrowing and continually rising towards the expansion container Access to the outflow safety pipe and the expansion tank can be either from top or bottom However the return safety pipe must be connected from the bottom The diameters for both pipes based on tank capacity can be obtained from the table below The safety pipes should never be smaller than 1 Safety Pipe Diameters Boiler capacity Boiler capacity KW Outflow pipe Return pipe Their diameters can be calculated by the following formula dr
24. value note 1 Total hardness Ca Mg Iron Fe Operating Pressure mg liter ppm Copper Cu Silicate SiO gt Oxygen O Oil grease Organic materials 1 pH value should be kept between the range of 8 7 9 2 in copper alloy system gt 2 If there is a non iron material such as Aluminum in the system low pG and conductivity may be necessary in all cases protection of the boiler should be a priority If phosphate is used for balanced or coordinated phosphatization process higher PO4 concentrations may be acceptable by considering all other values also see paragraph 4 HOT WATER BOILERS BOILER WATER Hot water and Red Parameters Unit hot water BOILER water clean lasting no Appearance foam Conductivity at 25 C US cm lt 1500 4 mmol liter lt mmol liter 5 mg liter ppm mg liter ppm Operating Pressure pH value at 25 C Acid capacity up to pH 8 2 Silicate SiO gt Phosphate PO4 Organic materials pa A If there is a non iron material such as Aluminum in the system low pG and conductivity may be necessary in all cases protection of the boiler should be a priority gt If phosphate is used for balanced or coordinated phosphatization process higher PO concentrations may be acceptable by considering all other values also see paragraph 4 Ref prEN 12953 10 Table 5 1 5 2 1998 BOILER LIFE SPAN The Ministry of Trade and Trade has d
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