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Beschikbare talen
Beschikbare talen
2.4
Control of the Theta
dual service module
2.4.1
2.4.2
Legend
1. control
2. 3-way mixing valve
3. temperature sensor S
4. plate heat exchanger
5. heating pump
6. room thermostat
7. DHW-pump
8. stop valve
9. (manual) air vent
A cold water supply
B hot water supply
C heating supply pipe
D heating return pipe
64
Introduction
The Theta dual service module, consists out of various components which provide the
warming of the heating water, such as:
•
the controller;
the 3-way mixing valve;
•
the DHW pump;
•
the heating pump;
•
the temperature sensor;
•
the room thermostat.
•
Controller
The controller of the Theta dual service module (Heat Master for BFC and Solar Heat
Master for SGE and SGS) is the device that uses various temperature sensors and a
room thermostat to control various elements (3-way mixing valve, DHW-pump and
heating pump) of the Theta dual service module.
In addition to the control of various components, the controller has a number of other
functions, such as:
protection of the DHW-pump and heating pump against seizing due to prolonged
•
arrest;
monitoring the temperature of the heating system (2.5.3 "Temperature monitoring of
•
heating system");
prevention against legionella (2.5.4 "Legionelle prevention");
•
DHW detection for simultaneity) (6.4 "Simultaneity").
•
Example of Theta dual service installation in combination with a BFC
domestic hot water
5
dual service
heating
IMD-1123 R0
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