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Ensbury LT 70 - 580 

 

We reserve the right to make changes to dimensions and construction 

15 

edition 12.2020 

Hamworthy Heating Limited – Dorset BH17 ONF 

 

 

 

 

6.  Installation guide 

 

6.1.  Boiler room and boiler room ventilation 

The boiler room must be arranged in compliance with local regulations and installation specifications. Particular 

attention should be paid to the ventilation of the boiler room. 

 

 

Supply of combustion air must be guaranteed (non-shut opening). 
Minimum air requirement is 1.6 m

3

/h for each kW of boiler power. 

Minimum free section of combustion air opening is 6 cm

for each kW of boiler power. 

 

 

Important: The combustion air must not have high dust concentrations. 

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. The maximum permitted amount of 

halogen in the combustion air is 5 ppm. 
Halogen compounds are found in spray cans, thinners, cleaning agents, degreasing agents and 

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 

same room. 
In the case of doubt, the perfect quality of the combustion air must be ensured with an external air 

intake. Make sure that there is a minimum loss of pressure, since this could impair the performance of 

the burner. 

 

 

6.2.  Planning dimensions 

 

6.2.1.  Space required 

 

 

 

It should be possible to open the furnace 

door, including burner, by 90°. 
At least 200 mm of free space should be 

provided to the right and to the left of the 

boiler to install boiler casing. 

 

After installing the casing, the boiler can be 

moved closer to the wall, but at least 60 mm 

away from it. 

 

The boiler cleaning hole behind the boiler 

must be easily accessible and should be 

600 mm away from the wall. 

 

 

 

 

 

 

 

6.2.2.  Boiler base 

 

If the floor of the boiler room is moist or loose, a sufficiently high boiler base must be provided. Moisture does not 

go well with electrical equipment! 
A base is also a good idea if the height is not sufficient for installing the burner. Otherwise, a boiler base is not 

required. 

200 

  

 

150 

Summary of Contents for Ensbury LT 70

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

Page 2: ......

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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