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CONSTRUCTIONAL-DIMENSIONAL
TECHNICAL
CHARACTERISTICS .................... page 5
1.1 Construction of the ELLPREX boilers .................................. page 5
1.2 Working principle ................................................................... page 5
1.3 Dimensions and hydraulic connections ................................ page 6
INSTALLATION ................................................................. page 10
2.1 Packaging .............................................................................. page 10
2.2 Handling ................................................................................. page 10
2.3 Positioning in the boiler house .............................................. page 10
2.4 Connection to the chimney ................................................... page 11
2.5 Water connections ................................................................. page 11
2.5.1 Feeding water quality ................................................... page 11
2.5.2 C.H. flow and return connections ................................ page 11
2.5.3 Connection of filling and drain tap............................... page 11
2.5.4 Connection of the pressure relief valve ...................... page 11
2.5.5 Conection of the expansion pipe and vessel .............. page 11
2.5.6 Shunt pump .................................................................. page 12
2.6 Furnace door: adjustment, opening and closing.................. page 12
2.6.1 Boilers ELLPREX 170÷630 ......................................... page 12
2.6.2 Boilers ELLPREX 760÷970 ......................................... page 12
2.6.3 Boilers ELLPREX 1100÷3500 ..................................... page 13
2.6.4 Important note .............................................................. page 13
2.7 Burner mounting .................................................................... page 14
2.7.1 Conformity of the burner .............................................. page 14
2.7.2 Choice of the burner .................................................... page 14
2.7.3 Burner installation ........................................................ page 14
2.8 Connection of the sight glass to the burner via a cooling line ... page 15
2.9 Casing assembly ................................................................... page 15
STANDARD PANEL BOARD .................................. page 22
3.1 Panel board type 21057 - functions description .................. page 22
3.2 Electrical wiring diagram for single phase burner & pump .. page 22
3.3 Introduction of the electronic panel board type 28735 ........ page 23
3.4 Panel board type 28735 - functions description ................. page 23
3.5 Electrical wiring diagram for single phase burner & pumps .. page 24
3.6 Outer compensator ................................................................ page 25
3.7 Electrical and hydraulic connections of C.H. ........................ page 27
3.8 Electrical and hydraulic connections of C.H. and D.H.W.
production circuits ................................................................. page 27
1
COMMISSION AND OPERATION ...................... page 28
4.1 Positioning of the turbulators ................................................ page 28
4.2 Preliminary check .................................................................. page 29
4.3 First commissioning .............................................................. page 29
4.4 Operation of the boiler ........................................................... page 30
4.5 Switch off of the boiler ........................................................... page 30
MAINTENANCE ................................................................ page 30
5.1 General rules ......................................................................... page 30
5.2 Ordinary maintenance ........................................................... page 30
5.3 Extraordinary maintenance ................................................... page 31
5.4 Cleaning of the boiler ............................................................ page 31
5.5 Check of the boiler operation ................................................ page 31
5.6 Check of the burner operation .............................................. page 31
5.7 Boiler house ........................................................................... page 31
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