- 39 -
SETTINGS OF THE INSTALLATION TYPES
Necessary accessories :
To fit the options please refer to their respective fit-
ting instructions.
The wall mounted sensor QAD36 is not
used.
The QAA 73 settings need changing in
accordance with the table fig. 39 -
1.1.1 - 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.
1.1.2 - 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 clip-in kit 2
nd
circuit can not be
used for this configuration.
The QAA 73 settings need changing in
accordance with the table fig. 39 -
The operating principle is identical to the heating
pump relay except in this case the wall mounted
sensor QAD36 is used and connected to the clip-in
relay (fig. 39 - page 38).
The wall sensor QAD36 guarantees that the selec-
ted heater outlet temp after the header is that defi-
ned by the LMU control unit, notably in the case
when the circulation flow on the boiler side (Q) is
less than that of the heating circuit (Q2).
Accessories list
References
A programmable relay clip-in kit
(CIR)
REG 127 W07.31515
A room temperature sensor
(QAA 73)
REG 73
REG 73
A heating circuit pump (Q2)
not supplied
1.1 - Heating pump relay operation
!
1.2 - Hydraulically disconnected operation
!
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 ...
