PA1 to PA3: Heating circuits HK1 to HK3
Parameters
PA1 PA2 PA3
Range of values
Gradient, flow 0.4 to 3.2
Level, flow –30 to 30 °C
Maximum flow temperature 20 to 130 °C
Minimum flow temperature 20 to 130 °C
Set-back difference 0 to 50 °C
Gradient, return flow 0.4 to 3.2
Level, return flow –30 to 30 °C
Outdoor temperature; point 1 –30 to 90 °C
Outdoor temperature; point 2 –30 to 90 °C
Outdoor temperature; point 3 –30 to 90 °C
Outdoor temperature; point 4 –30 to 90 °C
Flow temperature; point 1 20 to 130 °C
Flow temperature; point 2 20 to 130 °C
Flow temperature; point 3 20 to 130 °C
Flow temperature; point 4 20 to 130 °C
Return flow temperature; point 1 20 to 90 °C
Return flow temperature; point 2 20 to 90 °C
Return flow temperature; point 3 20 to 90 °C
Return flow temperature; point 4 20 to 90 °C
Set-back temperature; point 2 0 to 50 °C
Set-back temperature; point 3 0 to 50 °C
Day set point 10 to 90 °C
Night set point 10 to 90 °C
Sustained temperature 10 to 90 °C
Maximum return flow temperature 20 to 90 °C
Minimum return flow temperature 20 to 90 °C
OT activation value rated operation –30 to 50 °C
OT deactivation value
reduced operation
–10 to 50 °C
OT deactivation value
rated operation
0 to 90 °C
EB 5179 EN 131
Appendix