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
D
p on domestic water modulating valve: 90 kPa (0,9 bar)
Maximum
D
p 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 k
Ω
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
D
p on domestic water modulating valve: 90 kPa (0,9 bar)
Maximum
D
p 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 k
Ω
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
65
182,5
15
490
550,5
49
65
101
65
265
430
10
450
65
182,5
15
490
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
