System schemes
6 720 645 817
(2010/09)
4
1
System schemes
1.1
System scheme 1: unmixed heating circuit, low loss header
Hydraulic scheme with controller (schematic diagram)
Fig. 1
AF
Outside temperature sensor
CUx
Boiler control unit
FW 100
Weather-compensated controller
HP
Heating circuit pump (primary circuit)
IPM 1
Load switching module for one heating circuit
P
Heating circuit pump (secondary circuit)
VF
Common flow temperature sensor
1
Module position: on the heat source
3
Module position: on the wall
Heating system components
•
Suprapur gas condensing boiler for balanced flue
operation
•
One unmixed heating circuit
•
Weather-compensated controller
Features
•
Generally, we would recommend the installation of a
low loss header on site to ensure reliable transfer of
the required heating output.
•
The FW ... weather-compensated controller is
preferred for its higher utilisation of condensing
technology.
•
Determine the system water content and select a
corresponding expansion vessel (
Æ
page 39).
Function description
The unmixed heating circuit with low loss header is
regulated by an FW 100 weather-compensated
controller. This always requires the IPM 1 load switching
module. A 2-wire BUS system enables communication
between the boiler control unit, the controller and the
load switching module.
6 720 643 417-02.1O
IPM 1
AF
FW 100
3
CUx
1
VF
T
T
P
3
Suprapur
KBR 120-280
HP