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SETTINGS OF THE INSTALLATION TYPES
The QAD36 flow sensor of the relay clip-
in cannot be used in a double circuit.
Pump relay operation (without QAD36
flow sensor) requires no parameters to
be changed.
2.1.1 - Installation without domestic hot water
production
The two pumps Q (boiler pump) and Q2 (heating cir-
cuit pump) Work in parallel whenever there is a hea-
ting request.
2.1.2 - Installation with domestic hot water
heating
- Hot water request met:
• pumps Q and Q2 Always work in parallel,
• the selector valve VS moves to the heating
only when in winter mode.
- For a hot water request:
• the hot water request has priority over a hea-
ting request.
. the boiler pump Q works,
. the heating circuit pump Q2 stops,
. the selector valve VS moves to DHW posi-
tion only when in winter mode.
The flow temperature of each circuit is defined by
the heating curve for that circuit.
This temperature is corrected by using the boiler
heating potentiometer (setting from 17°C to 23°C).
Correction of the room temperature
using the heating potentiometer acts on
both heating circuits simultaneously.
Only one QAA73 room sensor can be connected to
the LMU. It can control one or two circuits.
The QAA73 room sensor is configured in the
factory on the CC1 radiator circuit.
The sensor defines the flow settings required as well
as the domestic hot water temperature and sends
them to the boiler control on the basis of the outside
temperature, room temperature and various other
parameters.
The heating and domestic hot water potentiometers
are then disabled when the sensor is connected.
2.1 - Heating pump relay operation
2.2 - Without room sensor
!
!
2.3 - With room sensor
Summary of Contents for THI 10-50c
Page 61: ... 64 XII NOMENCLATURE THRi 10 50 C ...
Page 64: ... 67 NOMENCLATURE CONTROL BOX ...
Page 66: ... 69 NOTES ...
