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Ensbury LT 70 - 580 

 

We reserve the right to make changes to dimensions and construction 

21 

edition 12.2020 

Hamworthy Heating Limited – Dorset BH17 ONF 

 

 

 

 

7.  Operating conditions 

 

7.1.  Fuels 

The Ensbury LT boiler is designed for operation with fuel oil EL and natural gas. 

 

 

Attention:  The use of other fuels such as for example biogas is only permitted with the express approval of the 

manufacturer. 

 

 

7.2.  Combustion air 

The combustion air must not have high dust concentrations. 
Important: Furthermore, it must be free of halogens (chlorine and fluorine compounds). An excessive presence 

of halogen in the combustion air leads to great corrosion damage. Make sure that no paints, 

thinners, cleaning agents, degreasing agents, solvents, chlorine containers, etc. are stored in the 

boiler room! 

 

 

7.3.  Filling the installation and water quality 

The installation must be thoroughly rinsed before it is finally filled. 
When filling for the first time and refilling, check the quality of the water in accordance with the values 

recommended in chapter 4.2. Poor water quality leads to damage in heating installations from calcification and 

corrosion. On the other hand, the service life, functional reliability and efficiency can be increased using 

appropriately treated water. 
During the filling process, the circulation pumps should be switched off and all ventilating valves opened, so that 

the air in the system can completely escape. The filling process is finished when the operating pressure has 

been reached. 

 

 

7.4.  Protection against corrosion 

Normally, no corrosion problems arise if systems are properly designed and installed and are run according to 

these instructions; consequently, there is no need to use chemical additives. However, if water is of poor quality 

or if oxygen seeps from the air into the heating system (expansion chambers open, expansion/supply chambers 

too small, plastic tubes without diffusion blocking in floor heating) damages are something which cannot be 

completely excluded. If you happen to use chemical additives in your system, make sure that they are effective, 

harmless and above all appropriate for the materials your system is made of. Enquire with your chemical additive 

supplier. 
In this case, you will need to arrange for a specialist water company to carry out annual quality checks on the 

water used in the heating system in order to avoid any damage to the system. 

 

 

7.5.  Requirements for operation 

The maximum operating pressure and the maximum temperature to be observed are listed on the type plate. The 

minimum temperatures to be observed are given in chapter 4.1. 
It is strictly recommended to maintain the boiler in operation during several hours after a cold start-up in order to 

evaporate condensates that are inevitably formed in any boiler during cold start-up. 

Содержание Ensbury LT 120

Страница 1: ...Manual Ensbury GB doc edition 12 2020 Hamworthy Heating Limited Dorset BH17 ONF Installation and operating instructions Ensbury LT 70 580...

Страница 2: ......

Страница 3: ...quipment 14 5 4 Heating regulators 14 5 5 Cable set 14 6 Installation guide 15 6 1 Boiler room and boiler room ventilation 15 6 2 Planning dimensions 15 6 3 Placement into the boiler room 16 6 4 Hydra...

Страница 4: ...ust be free of halogens chlorine and fluorine compounds If there is any doubt the quality of the combustion air must be ensured with an external air intake ELECTRICAL INSTALLATION Electrical connectio...

Страница 5: ...users to obtain low emission values and safe operation in conformity with law provisions The boiler s thermal insulation is made of glass fiber felt that adheres to the boiler shell guaranteeing mini...

Страница 6: ...t pressure other pressures on request 6 0 bar g Min operating pressure 0 5 bar g Boiler supply and return pipe flanges PN 6 Safety cut out temperature 110 C Max operating temperature 90 C Operating te...

Страница 7: ...ired The fill water must be treated and whenever new water is added the make up water must also be treated Installations with multiple boilers require all of the boilers to be brought up simultaneousl...

Страница 8: ...o add buffer volumes to the plant s hydraulic system to avoid short operating cycles especially when the boiler is protected by an isolation plate heat exchanger Regarding the regulation of the instal...

Страница 9: ...1 4 1 1 4 1 1 4 1 1 2 1 1 2 1 1 2 Height supply connection n mm 757 757 835 835 835 835 900 900 900 978 978 1053 1053 1053 Height return connection r mm 757 757 835 835 835 835 933 933 933 993 993 106...

Страница 10: ...82 1086 Weight empty 10 bar G kg 328 329 478 479 541 542 617 711 712 909 911 1193 1196 1200 Lenght supply return f mm 114 114 114 05 07 TN 4 4 2 Divided version Also available as a custom made option...

Страница 11: ...5 0 95 0 95 0 95 0 95 0 95 1 95 1 Overall efficiency tm 40 C 30 3 95 6 95 7 95 7 95 8 95 8 95 9 95 9 95 9 96 0 96 0 96 0 96 0 96 0 96 0 Efficiency DIN4702 8 60 75 C N 2 93 7 93 9 94 0 94 1 94 2 94 3 9...

Страница 12: ...5 33 0 36 7 40 7 48 0 55 9 63 7 min 1 2 2 6 2 8 3 8 4 3 4 5 5 0 5 7 5 5 6 1 7 4 8 1 9 6 10 6 13 1 Exhaust gas mass flow max wet kg s 0 03 0 04 0 05 0 07 0 07 0 09 0 10 0 12 0 14 0 15 0 17 0 20 0 23 0...

Страница 13: ...m power of the boiler is limited by the minimum allowable flue gas temperature Consequently the modulation range increases when the average boiler temperature increases This is exemplary illustrated i...

Страница 14: ...and 2nd speed 2nd speed inactive for a NAVISTEM B2000 panel with RVS 63 regulator Overheat indicator Burner safety indicator External fault indicator Water thermometer 5 3 Additional equipment Timer...

Страница 15: ...solvents among others In addition halogen emissions are strongly suspected in the vicinity of dry cleaners hair dressing salons swimming pools printing offices and washing machines installed in the sa...

Страница 16: ...mm 844 844 986 986 1186 1186 1186 1445 1445 1445 1445 1701 1701 1701 Boiler feet width b mm 640 640 740 740 740 740 790 790 790 870 870 938 938 938 Vibration damper length e mm 130 130 130 130 130 130...

Страница 17: ...in the form of correctly used oxygen binding agents or chemicals If it is not possible to realize an installation without oxygen entrance a system separation must be set up using heat exchangers 6 5...

Страница 18: ...se that are open on the rear part in the direction of the combustion gas collector Also read and follow the instructions in the assembly guide L Da 0007AX Ensbury LT 70 90 120 145 165 190 225 260 300...

Страница 19: ...ce door flange pivot LS mm 45 45 45 45 45 45 45 45 45 45 45 45 45 45 Door thickness e mm 115 115 115 115 115 115 115 115 115 115 115 116 116 116 09 06 Burner tube lengths without consideration of an e...

Страница 20: ...9 Flue gas system The pertinent rules of technology and good practice as well as the country specific regulations and valid standards must be observed The Ensbury LT boilers have been developed using...

Страница 21: ...pumps should be switched off and all ventilating valves opened so that the air in the system can completely escape The filling process is finished when the operating pressure has been reached 7 4 Prot...

Страница 22: ...ound the burner tube has been filled with insulation material Whether the boiler door is closed properly Whether the heating system has been filled up with water and completely vented Whether the ther...

Страница 23: ...nnect supply and burner plug Burner LED is on Press burner reset button No oil Gas pressure insufficient Add oil Call the gas board Overheat temperature LED is on Safety thermostat has come into opera...

Страница 24: ...tem blowers Carry out burner maintenance according to the recommendations given in the burner manual Check fuel oil level Clean boiler and chimney 9 2 Boiler cleaning Boiler should be cleaned by your...

Страница 25: ...1550 mm 113165 1750 4 Smoke chamber lid seal 10 x length 113177 800 mm 113177 800 mm 113177 800 mm 113177 800 mm 113177 800 mm 113177 800 mm 5 Turbulator Pieces 120283 9 122517 9 122517 11 120284 11...

Страница 26: ...ction 26 edition 12 2020 Hamworthy Heating Limited Dorset BH17 ONF Wessex House New Fields Business Park Stonsford Road Poole Dorset BH17 ONF Tel 01202662500 Fax 01202 662522 seNice hamworthy heating...

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