2.11 Connecting the heating circuit and
the domestic circuit
2.11.1 General
The connection must comply with trade practices
according to the regulations in force.
The heating circulation pump is integrated into the
hydraulic module.
Connect the pipe of the central heating to the hydraulic
module respecting the direction of the circulation.
The diameter of the pipe, between the hydraulic module
and the heating manifold, must be at least equal to
1 inch (26x34 mm).
Calculate the diameter of the pipes in function of the
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Tightening torque: 15 to 35 Nm.
Use union connectors to facilitate the removal of the
hydraulic module.
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transmitting noise and vibrations to the building.
Connect the evacuations of the drain tap and the safety
valve to the drain.
Check that the expansion system is operating correctly.
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1 bar) and the calibration of the safety valve.
Reminder: Make the assembly impervious respecting
trade practices in force for the plumbing work:
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- Use sealant (synthetic as required).
Reminder: The presence on the installation, of a
disconnection function of the CB type, designed to
avoid returns of heating water to the drinking water
system, is required by articles 16.7 and 16.8 of the
Typical Departmental Domestic Rules.
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case the formation of metal particles and sludge
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manufacturer.
- Refer to the "Domestic hot water and heating
treatment" section in our price catalogue.
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2.11.2 Rinsing the installation
Before connecting the hydraulic module to the
installation, rinse the heating system correctly to
eliminate the particles that could compromise the
correct operation of the appliance.
Do not use solvents or aromatic hydrocarbons (petrol,
diesel, etc.).
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capacity on the boiler return circuit and at the lowest
point equipped with a drain, in order to collect and
evacuate the impurities.
Add to the water an alkaline product and a dispersant.
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SD
C
CAR
CPr
EG
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EG
SR
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SD
EG
SR
R2
SA2
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Hot water tank
C
Circulator
(direct heating "heating circuit " and DHW)
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Cd
Condenser
C
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Gas exchanger circulator
CPr
Pressure
sensor
D
Disconnector
EG
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as exchanger
GS
Safety
device
MH
Hydraulic
module
MT
Thermostatic
mixer
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Drain
R2
Direct heating circuit "CC2"
(1 radiator circuit)
SA2
Direct
heating
ambience sensor "CC2" (option)
SD
Output
sensor
SD
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Gas exchanger output sensor
SE
Outdoor
sensor
SR
Return
sensor
SR
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Gas exchanger return sensor
SSa
Hot water sensor
SSu
Safety
valve
UE
Outdoor
unit
VD
Directional
valve
VE
Expansion
tank
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Installation and commissioning instructions "1485 - EN"
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Heat pump alféa hybrid duo gas
