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SATK20 & SATK30

1

These instructions must be read and understood
before installing and maintaining the HIU.
CAUTION! FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN A SAFETY
HAZARD!

1

The device must be installed, commissioned and 
maintained by qualified technical personnel in accordance 
with national regulations and/or relevant local 
requirements.

2

If the device is not installed, commissioned and maintained
correctly in accordance with the instructions provided in 
this manual, it may not work correctly and may endanger 
the user.

3

Flush the pipework thoroughly before installing the HIU to 
remove any particles, rust, incrustations, limescale, welding
slag and any other contaminants.        
The water circuits must be clean and free from debris.

4

Make sure that all connection fittings are watertight.

5

When connecting water pipes, make sure that threaded 
connections are not mechanically overstressed. Over time 
this may result in breakage, causing water damage and/or 
personal injury.

C

ontent

Function and product range

1

Safety instructions

1

Dimensions and technical specification

3

Installation

4

First operation

5

Electronic controller

6

Safety and alarms

7

SATK20103 and SATK20203 components

8

SATK20303 components

10

SATK30103 components

12

SATK30105 components

12

Maintenance

14

Electric connections

16

Trouble shooting and solution

17

Product Range

SATK20103

Direct wall-mounted HIU for 

LOW

temperature 

heating, instantaneous domestic hot water
production.

SATK20203

Direct wall-mounted HIU for 

MEDIUM

temperature heating, instantaneous domestic 
hot water production.

SATK20303

Direct wall-mounted HIU for 

HIGH

temperature 

heating, instantaneous domestic hot water 
production.

SATK30103

Indirect wall-mounted HIU, instantaneous DHW 
production - with 

50 kW

heat exchanger.

SATK30105

Indirect wall-mounted HIU, instantaneous DHW 
production - with 

75 kW

heat exchanger.

Safety Instructions

SATK20

SATK30

Function

SATK20 and SATK30 Heat Interface Units (HIU) control the
heating and domestic hot water generation in an individual
apartment within a centralised boiler or district heating system.

NOTE:

Due to the specification ordered, or the country of

destination, the actual unit may differ from those shown.

WARNING

Summary of Contents for Altecnic SATK20

Page 1: ...SATK20 SATK30 heat interface unit Installation Operation Maintenance Instructions...

Page 2: ...roduct range 1 Safety instructions 1 Dimensions and technical speci cation 3 Installation 4 First operation 5 Electronic controller 6 Safety and alarms 7 SATK20103 and SATK20203 components 8 SATK20303...

Page 3: ...e operation of the device and or system NOTE Risk of electric shock Live parts Shut off the electric supply before opening the HIU cover 1 During installation and maintenance operations always avoid d...

Page 4: ...Dimensions SATK30 A B C kg G B G B G B 16 A B C kg G B G B G B 19 550 A A B B 65 65 450 C C 59 101 160 65 190 195 430 15 490 46 10 245 110 265 110 85 A A B B 629 65 65 550 C C 159 101 160 65 290 195 5...

Page 5: ...changer brazed stainless steel Installation The SATK series HIUs are designed for installation in a sheltered domestic environment or similar therefore cannot be installed or used outdoors i e in area...

Page 6: ...ent Connection to the main supply The device is supplied with an electric supply cable plug not supplied The device should be electrically connected to a 230 V ac single phase earth mains supply using...

Page 7: ...e cover close the isolating valves empty the HIU using the drain cocks provided remove the spacer piece A remove the blanking plug B install the ow probe in the 1 4 pocket B provided install the ow me...

Page 8: ...vated the circulation pump shuts down and the and the regulating valve closes Heating cycle activation is indicated by a ashing fault LED on the electronic controller This fault does not affect the ge...

Page 9: ...d Safety valve fault Error code 76 SATK20103 LOW temperature Removing a fault Normal operating conditions are restored automatically once the faulty safety valve is working correctly again Safety sett...

Page 10: ...tic water preheating function Heating cycle modulating temperature regulation with compensated set point floor slab heating function Factory settings Components SATK20203 MEDIUM Temperature HIU Item C...

Page 11: ...ds the drying of the under oor heating screed at low temperatures This function can only be activated and executed if there are no faults It can be activated by pressing and holding the RESET button f...

Page 12: ...al load under control The thermal response time of the system is thus minimised Safety and alarms Error codes associated with faults signalled by the lighting up of the FAULT LED are also shown on the...

Page 13: ...The function is enabled by setting dip switch 5 to the ON position During periods when the domestic water cycle is not used if the DHW probe detects a temperature 10 C below the SET value the control...

Page 14: ...eturn temperature sensor 22 Pressure gauge 23 Filling loop isolation valve 24 Filling loop double check valve 25 Filling loop Not shown on Components illustration Functional characteristics SATK30103...

Page 15: ...rying of the under oor heating screed at low temperatures This function can only be activated and executed if there are no faults It can be activated by pressing and holding the RESET button for 8 sec...

Page 16: ...l maintenance procedures should be carried out by an authorised technician Regular maintenance guarantees better ef ciency and helps to save energy Before carrying out any maintenance repair or part r...

Page 17: ...the new probe Reconnect the connector respecting the only possible way it can be inserted When carrying out maintenance on the electrical system for the connections follow the diagram on page 16 Afte...

Page 18: ...HW production valve actuator x x x x Thermal safety relief valve x x Thermal safety thermostat x x Heating flow temperature probe x x x x x x x x x x x x x x x Electric supply 230 V ac x x x x x x x x...

Page 19: ...artly clogged call quali ed personnel to have it serviced modulating valve actuator faulty call quali ed personnel to have it replaced valve obturator blocked in intermediate position call quali ed pe...

Page 20: ...valves terminals closed open the valves centralised system temperature insuf cient contact person in charge of system electronic controller not working call quali ed personnel to have it replaced prim...

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