System schemes
6 720 645 817
(2010/09)
10
1.4
System scheme 4: one unmixed heating circuit, one mixed heating circuit, low loss
header
Hydraulic scheme with controller (schematic diagram)
Fig. 4
AF
Outside temperature sensor
CUx
Boiler control unit
FW 200
Weather-compensated controller
HP
Heating circuit pump (primary circuit)
IPM 2
Load switching module for two heating circuits
M
3-way mixer
MF
Mixer circuit temperature sensor
P
1,2
Heating circuit pump (secondary circuit)
TB
Temperature limiter
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, without diaphragm expansion vessel
•
One unmixed heating circuit
•
One mixed 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).
•
Install a mechanical safety limiter (TB 1) in
accordance with the underfloor heating system
manufacturer's instructions.
Function description
The heating circuits are regulated by an FW 200
weather-compensated controller. This always requires
the IPM 2 load switching module. A 2-wire BUS system
enables communication between the boiler control unit,
the controller and the load switching module.
6 720 643 417-04.1O
1
AF
3
T
T
P1
T
T
M
M
P2
MF
TB
IPM 2
CUx
FW 200
3
VF
Suprapur
KBR 120-280
HP
Содержание SUPRAPUR KBR 120-3 A
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