10
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
13
12
11
10
9
7
6
8
1. Frame
2. Electronic regulator
3. Heating ON/OFF valve
4. DHW production modulating valve
5. Drain cock
6. DHW temperature probe
7. DHW heat exchanger
8. DHW priority flow meter
9. Pump (SATK20403HE only) UPM3 15-70 with protective
by-pass
10. Heat meter spacer template
11. System strainer/heat meter flow probe pocket
12. Air vent cock
13. Primary circuit shut-off valves
Characteristic components
Factory 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
12
11
10
9
8
7
6
1. Frame
2. Electronic regulator
3. Heating ON/OFF valve
4. DHW production modulating valve
5. Drain cock
6. DHW temperature probe
7. DHW heat exchanger
8. DHW priority flow meter
9. Heat meter spacer template
10. Air vent cock
11. System strainer/heat meter flow probe pocket
12. Primary circuit shut-off valves
SATK20
305
High capacity HIGH temperature heat interface unit
Characteristic components
Factory settings
1
2
3
4
5
6
4
ON
SATK20
303
HIGH temperature heat interface unit
SATK20
403HE
HIGH temperature heat interface unit with high efficiency pump on the primary side
