Unical ALKON 50 kW, Installation And Servicing Manual

2

CONTENTS

1

GENERAL INFORMATION ...................................................................................................................................................................................

3

1.1

Symbols used in this guide ..........................................................................................................................................................................

3

1.2

Correct use of the appliance .......................................................................................................................................................................

3

1.3

Water treatment ............................................................................................................................................................................................

3

1.4 I

Information to be passed over to the person in charge of the appliance ................................................................................................

3

1.5

Safety warnings ............................................................................................................................................................................................

4

1.6

Data badge ....................................................................................................................................................................................................

5

1.7

General warnings .........................................................................................................................................................................................

6

2

TECHNICAL FEATURES AND DIMENSIONS .....................................................................................................................................................

7

2.1

Technical features ........................................................................................................................................................................................

7

2.2

Dimensions ...................................................................................................................................................................................................

8

2.3

Main components .......................................................................................................................................................................................

11

2.4

Boiler water circuit ......................................................................................................................................................................................

12

2.5 Operating performances ............................................................................................................................................................................

13

2.6

General features .........................................................................................................................................................................................

13

3

INSTRUCTIONS FOR THE INSTALLER ............................................................................................................................................................

14

3.1

General warnings ......................................................................................................................................................................................

14

3.2

Installation standards ................................................................................................................................................................................

15

3.3

Packaging ..................................................................................................................................................................................................

16

3.4

Boiler location in a boiler room ..................................................................................................................................................................

16

3.5

Installation on existing systems ...............................................................................................................................................................

17

3.6

Gas connection .........................................................................................................................................................................................

17

3.7

Connection return and flow system pipes ...............................................................................................................................................

18

3.8

Determination of primary boiler pump or boiler pump system.......................................................................................................... 

19

3.9

Supplemental safety, security and control devices ................................................................................................................................

20

3.10

Safety pressure relief valve .....................................................................................................................................................................

21

3.11

Working pressure ......................................................................................................................................................................................

21

3.12

Mixing header filter ....................................................................................................................................................................................

22

3.13

Mixing header ............................................................................................................................................................................................

22

3.14

Condensing drain ......................................................................................................................................................................................

23

3.15

Water treatment .........................................................................................................................................................................................

24

3.16 

Fluing connections ....................................................................................................................................................................................

25

3.17 

Electrical connections ...............................................................................................................................................................................

30

General warnings ......................................................................................................................................................................................

30

Connection to electrical supply 230V ......................................................................................................................................................

30

Room thermostat and/or heating controller E8 connection ....................................................................................................................

31

Electrical connection of additional safety devices .................................................................................................................................. 31
Electrical connection of additional safety devices for ALKON 50/70 in batterie ................................................................................... 32

3.18 

Practical connection diagrams .................................................................................................................................................................

33

3.19 Management connections diagram with E8 regulator ............................................................................................................................ 36
3.20 Examples of installation (functional diagram) .......................................................................................................................................... 38
3.21 Examples of installations with optional kits .............................................................................................................................................. 44
3.22 Filling t

he system ......................................................................................................................................................................................

48

3.23 COMMISSIONING .................................................................................................................................................................................... 48

Preliminary checks ................................................................................................................................................................................... 49
Ignition and switching off ........................................................................................................................................................................... 49
Information to be supplied to the user ..................................................................................................................................................... 49

3.24 Burner adjustment ..................................................................................................................................................................................... 50
3.25 Burner pressure adjustment .................................................................................................................................................................... 52
3.26 Gas conversions ....................................................................................................................................................................................... 52
3.27 Programming of the operational parameters ........................................................................................................................................... 53

4

SERVICING SCHEDULE .................................................................................................................................................................................... 55

Instructions for checking and servicing the appliance ................................................................................................................................... 55
Table of the resistance values in function of the heating and domestic sensor temperature ...................................................................... 55
Verification and cleaning of the condensate evacuation siphon ..................................................................................................................... 55
Sealing gasket between distributor and boiler body ........................................................................................................................................ 56

5

FAULT FINDING ................................................................................................................................................................................................ 57

5.1 Error codes ................................................................................................................................................................................................ 57
5.2 Servicing Request ..................................................................................................................................................................................... 57
5.3 Display off error codes on heating controller E8 .................................................................................................................................... 59

6

DECLARATION  OF CONFORMITY ............................................................................................................................................................... 62

7

CE CERTIFICATE....................................................................................................................................................................................63

Warning: this manual contains instructions to be used exclusively by the
installer and/or a competent person in accordance with the current laws in
force.
The end user MUST not make any alterations to the boiler.
Failure to follow the instructions indicated in this manual, which is supplied
with the boiler, could cause injury to persons, animals or damage to property.
UNICAL shall not be held liable for any injury and/or damage.