eta System Separation Module, Руководство по эксплуатации

Страница: 9 / 28

Description Primary side characteristic curve
9
3.4 Primary side characteristic curve
Primary side characteristic curves
Example: using the table, a primary side spread of
45 K results for the secondary side underfloor heating
(15 kW, 10 K spread).
The performance chart results in a primary side
flow rate of approx. 0.29 m³/h at 15 kW output and
45 K spread.
=> 0.29 m³/h a free residual pump head of 7.0 m
occurs on the primary side with a pressure loss of
approx 0.2 m.
Performance chart
Free residual pump head
1 Pump head
2 Module pressure loss
3 Free residual pump head
Primary spread
Flow - return
Secondary spread
Flow - return
75 °C - 35 °C = 40 K 35 °C - 30 °C = 5 K
75 °C - 33 °C = 42 K 35 °C - 28 °C = 7 K
75 °C - 30 °C = 45 K 35 °C - 25 °C = 10 K
75 °C - 45 °C = 30 K 60 °C - 40 °C = 20 K