Unical ELLPREX Series User Manual

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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 11
2.1 Packaging ............................................................................... page 11
2.2 Handling ................................................................................. page 11
2.3 Positioning in the boiler house ............................................... page 11
2.4 Connection to the chimney ..................................................... page 12
2.5 Water connections.................................................................. page 12
2.5.1 Feeding water quality .................................................... page 12
2.5.2 C.H. flow and return connections .................................. page 12
2.5.3 Connection of filling and drain tap ................................. page 12
2.5.4 Connection of the pressure relief valve ......................... page 12
2.5.5 Connection of the expansion pipe and vessel ............... page 12
2.5.6 Shunt pump ................................................................... page 13
2.6 Furnace door: adjustment, opening and closing .................... page 13
2.6.1 Boilers ELLPREX 170÷630 ........................................... page 13
2.6.2 Boilers ELLPREX 760÷970 ........................................... page 13
2.6.3 Boilers ELLPREX 1100÷7000 ..................................... page 14
2.6.4 Important note .............................................................. page 14
2.7 Burner mounting.................................................................... page 15
2.7.1 Conformity of the burner ............................................. page 15
2.7.2 Choice of the burner.................................................... page 15
2.7.3 Burner installation ........................................................ page 15
2.8 Connection of the sight glass to the burner via a cooling line .. page 16
2.9 Casing assembly .................................................................. page 16
STANDARD PANEL BOARD .................................. page 24
3.1 Panel board type 21057 - functions description ..................... page 24
3.2 Electrical wiring diagram for single phase burner & pump ..... page 24
3.3 Introduction of the electronic panel board type 30688 ........... page 25
3.4 Panel board type 30688 - functions description .................... page 25
3.5 Electrical wiring diagram for single phase burner & pumps ..... page 26
3.6 Outer compensator ................................................................ page 27
3.7 Electrical and hydraulic connections of C.H. .......................... page 32
3.8 Electrical and hydraulic connections of C.H. and D.H.W.
production circuits .................................................................. page 32
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COMMISSION AND OPERATION ...................... page 33
4.1 Positioning of the turbulators .................................................. page 33
4.2 Preliminary check ................................................................... page 34
4.3 First commissioning ............................................................... page 34
4.4 Operation of the boiler ............................................................ page 35
4.5 Switch off of the boiler ............................................................ page 35
MAINTENANCE ................................................................ page 35
5.1 General rules .......................................................................... page 35
5.2 Ordinary maintenance ............................................................ page 35
5.3 Extraordinary maintenance .................................................... page 36
5.4 Cleaning of the boiler ............................................................. page 36
5.5 Check of the boiler operation ................................................. page 36
5.6 Check of the burner operation ................................................ page 36
5.7 Boiler house ........................................................................... page 36
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Unical ELLPREX Series Specifications

General

Brand	Unical
Model	ELLPREX Series
Category	Boiler
Language	English