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SATK series compact wall-mounted heat interface unit 

SATK20 series

INSTRUCTIONS FOR INSTALLATION, COMMISSIONING AND MAINTENANCE

CONTENTS

Safety instructions

Dimensions
Technical specifications

Installation

Commissioning

Electronic regulator

SATK20103HE
SATK20203HE

SATK20303/SATK20403HE
SATK20305

Electric connections

Safety and alarms

Troubleshooting

2

3

4

4

6

7

8

10

12

13

Maintenance

14

Function 

The  SATK  series  heat  interface  unit  allows  independent  control  of  heat

regulation and domestic hot water production within centralised heating

systems.

Product range

SATK20103HE

Direct wall-mounted HIU for LOW temperature

heating, instantaneous domestic hot water

production, power capacity 40 kW

SATK20203HE

Direct wall-mounted HIU for MEDIUM temperature

heating, instantaneous domestic hot water

production, power capacity 40 kW

SATK20303

Direct wall-mounted HIU for HIGH temperature

heating, instantaneous domestic hot water

production, power capacity 40 kW

SATK20403HE

Direct wall-mounted HIU for HIGH temperature

heating, instantaneous domestic hot water

production, power capacity 40 kW. With pump on the

primary side.

SATK20305

Direct wall-mounted HIU for HIGH temperature

heating, instantaneous domestic hot water

production, power capacity 65 kW

78165.02 EN

www.caleffi.com

Commissioning checklist

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Summary of Contents for SATK20 Series

Page 1: ...ms Product range SATK20103HE Direct wall mounted HIU for LOW temperature heating instantaneous domestic hot water production power capacity 40 kW SATK20203HE Direct wall mounted HIU for MEDIUM tempera...

Page 2: ...high intensity electromagnetic fields This device cannot be used in areas at risk of explosion or fire 3 The device must be connected to an independent bipolar switch If work has to be done on the de...

Page 3: ...ell cover EPP Heat exchanger brazed stainless steel SATK20305 technical specifications Medium water Maximum percentage of glycol 30 Maximum medium temperature 85 C Maximum working pressure primary cir...

Page 4: ...ontact a qualified technician to request a thorough check of the electrical system Electrical safety of the appliance is only achieved when it is correctly connected to an effective earthing system ma...

Page 5: ...centralised system It is advisable to install manual shut off valves not supplied also on the bottom connections to the apartment circuits Before installation it is recommended to carry out accurate...

Page 6: ...r steady illumination of the LEDs ON Electric supply 230 V ac DHW Domestic cycle CH Heating cycle FAULT Fault detected Domestic cycle Heating cycle Operating principle All heating and domestic hot wat...

Page 7: ...lty safety valve is working properly again Thermal safety valve fault SATK20103HE LOW temperature Error code 76 76 Removing a fault Normal operating conditions are restored automatically once the faul...

Page 8: ...ner heat meter flow probe pocket 18 Primary circuit shut off valves SATK20103HE LOW temperature heat interface unit with high efficiency pump Functional characteristics Heating range 45 75 C Set point...

Page 9: ...a temperature of 45 C Once the maximum set point has been reached the function is executed following the same procedures in reverse from the maximum set point to the minimum set point This function h...

Page 10: ...ctory settings 1 2 3 4 5 6 4 ON Functional characteristics Maximum heating temp 85 C ON OFF regulation DHW production range 42 60 C Optional functions Domestic cycle DHW pre heating function 1 2 3 4 5...

Page 11: ...circulate at the temperature supplied by the central heating system ON OFF regulation The valve is closed on completion of the heating cycle The active heating cycle is signalled by lighting of the ye...

Page 12: ...inserted Replacing the valve actuator Disconnect the actuator cable lightly pressing the tab on the connector and extracting it see page 13 ref 4 8 Extract the fixing clip D and then the actuator Posi...

Page 13: ...pulito Room thermostat Volt free connection This connection may not be available To be wired during installation Room thermostat not supplied potential free line MAX 30 m 6 ON Dip switch 6 configurati...

Page 14: ...d heat exchanger partly clogged call qualified personnel to have it serviced modulating valve actuator faulty call qualified personnel to have it replaced valve obturator blocked in intermediate posit...

Page 15: ...ced primary circuit flow rate insufficient contact person in charge of system centralised system not working contact person in charge of system CH LED off chrono thermostat time setting incorrect chec...

Page 16: ...ve result Are the connections compliant with specifications and made in accordance with best practices 13 all Are the shut off valves open 14 all Has the visual inspection of the hydraulic connections...

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