Boiler pump with DHW heating upstream of low loss header with 3-way diverter
valve
If the pump HEP is used as a boiler pump for DHW heating upstream of a low loss
header via a 3-way valve, apply the settings given in the following table.
Function
Prog. no.
Setting level
Setting
Boiler
Temp differential max
2316
E
- - -
Nominal temperature rise
2317
E
e.g. 15 °C
Pump modulation
2320
E
Temp differential nominal
Configuration
DHW actuator Q3
5731
E
Diverter valve
DHW separate circuit
5736
E
On
Relay output QX3
5892
E
DHW actuator Q3
Sensor input BX1
5930
E
Rail flow temperature sensor
B10
PWM output P1
6085
E
Boiler pump Q1
Set the minimum and maximum pump speeds in accordance with the system con-
figuration under menu items
Heating circuit 1-heating circuit 3
,
Boiler
and
DHW
storage tank
Function
Prog. no.
Setting level
Set value
Heating circuit 1
Pump speed min
882
E
Pump speed max
883
E
Heating circuit 2
Pump speed min
1182
E
Pump speed max
1183
E
Heating circuit 3
Pump speed min
1482
E
Pump speed max
1483
E
Boiler
Pump speed min
2322
E
Pump speed max
2323
E
DHW cylinder
Pump speed min
5101
E
Pump speed max
5102
E
Commissioning
30
Variable speed pump HEP 25-180-10
7660118-03
07.16
GB
