Atlantic 024200, Installation And Commissioning Instructions

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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
flow rates and lengths of the hydraulic systems.
Tightening torque: 15 to 35 Nm.
Use union connectors to facilitate the removal of the
hydraulic module.
Prefer the use of flexible connector hoses to avoid
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.
Check the expansion circuit pressure (pre-inflation of
1 bar) and the calibration of the safety valve.
Reminder: Make the assembly impervious respecting
trade practices in force for the plumbing work:
- Use suitable seals (fibre seals, O rings).
- Use Teflon or hemp tape.
- Use sealant (synthetic as required).
"
In certain installations, the presence of different
metals may cause corrosion problems; in which
case the formation of metal particles and sludge
may be observed in the hydraulic circuit.
"
In this case, it is preferable to use a corrosion
inhibitor in the proportions recommended by its
manufacturer.
- Refer to the "Domestic hot water and heating
treatment" section in our price catalogue.
"
It is also necessary to ensure that the water
treated does not become aggressive.
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.).
For older installations, fit a decanting pot of adequate
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.
Rinse the installation several times before final filling.
figure 28 - Overall view of the electrical connections
GS
MT
CAR
D
RI
UE
VE
VD
Cd
SSa
BS
Pg
Pg
SSu
SD
C
CAR
CPr
EG
C
EG
SR
EG
SD
EG
SR
R2
SA2
Legend
BS Hot water tank
C
Circulator
(direct heating "CC2" and DHW)
CAR Anti-return flap
Cd Condenser
C
EG
Gas exchanger circulator
CPr
Pressure sensor
D Disconnector
EG G as exchanger
GS Safety device
MH
Hydraulic module
MT Thermostatic mixer
Pg Drain
R2 Direct heating circuit "CC2"
(1 radiator circuit)
SA2
Direct heating
ambience sensor "CC2" (option)
SD Output sensor
SD
EG
Gas exchanger output sensor
SE Outdoor sensor
SR
Return sensor
SR
EG
Gas exchanger return sensor
SSa Hot water sensor
SSu Safety valve
UE
Outdoor unit
VD Directional valve
VE Expansion tank
"
direct underfloor heating connection prohibited
Installation and commissioning instructions "1485 - EN"
Heat pump alféa hybrid duo gas
- 30 -