3
Dimensions
Medium: water
Maximum percentage of glycol: 30%
Maximum medium temperature: 85°C
Maximum working pressure: - primary circuit: 1 MPa (10 bar)
- domestic circuit: 1 MPa (10 bar)
Nominal DHW exchanger capacity: 40 kW
Maximum recommended primary circuit flow rate: 1,2 m
3
/h
Maximum DHW circuit flow rate: 18 l/min (0,3 l/s)
Minimum flow to activate domestic water flow meter: 2,7 l/min ±0,3
Maximum Dp on domestic water modulating valve: 90 kPa (0,9 bar)
Maximum Dp on mixing valve: 90 kPa (0,9 bar)
Electric supply: 230 V (ac) ±10% 50 Hz
Maximum power consumption: 80 W
20 W on SATK20303
Protection class: IP 40
Pump (not present on SATK20303): UPM3 15-70
Pump by-pass pressure setting: 45 kPa (0.45 bar)
Actuators: stepper 24 V
Probes: NTC 10 kΩ
Safety thermostat (only on SATK20103HE): 55°C ±3
Materials
Components: brass EN 12165 CW617N
Fitting pipes: steel
Frame: RAL 9010 painted steel
Protective shell 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 circuit: 1 MPa (10 bar)
- domestic circuit: 1 MPa (10 bar)
Nominal DHW exchanger capacity: 65 kW
Maximum recommended primary circuit flow rate: 1,2 m
3
/h
Maximum DHW circuit flow rate: 27 l/min (0,45 l/s)
Minimum flow to activate domestic water flow meter: 2,7 l/min ±0,3
Maximum Dp on domestic water modulating valve: 90 kPa (0,9 bar)
Maximum Dp on mixing valve: 90 kPa (0,9 bar)
Electric supply: 230 V (ac) ±10% 50 Hz
Maximum power consumption: 20 W
Protection class: IP 40
Actuators: stepper 24 V
Probes: NTC 10 kΩ
Materials
Components: brass EN 12165 CW617N
Fitting pipes: steel
Frame: RAL 9010 painted steel
Protective shell cover: EPP
Heat exchanger: brazed stainless steel
SATK20305
SATK20103/203/303/403
10
450
65182,5
15490
550,5
49
65 101
65
265
430
10
450
65182,5
15490
550,5
49
65 207
65
430
A B C
3/4” M 1/2” M 3/4” F
SATK20103HE - SATK20203HE SATK20303
SATK20403HE technical specifications
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