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INSTALLATION
PRIMO PILOT
MANUAL
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12
The heating fl ow and the domestic hot water fl ow must be connected
to the “
1
” transmitting outputs. Provide a connecting tee between
the two circuits.
If the decoupling kit is installed with the pilot, the tee must be placed
after the kit.
4.2.2.2 - Heating c DHW circuit
connection
This kit is designed to ensure suffi
cient fl ow on the heat pump. It is
compulsory during renovation, as well as in all cases where the fl ow rate
on the heat pump is restricted by the confi guration of the distribution
circuit.
Hydraulic connection of the decoupling kit :
1) The decoupling kit must be connected between the outlet towards
heating circuit (and DHW circuit if connected) and the return of
the heating circuit. Connect the two pipes with a 3/4’’ nut directly
to the corresponding threaded connections of the pilot : the pipe
with a nut on both sides must be connected to the return of the
heating circuit. First, do not tighten the nuts.
Electrical connection of the decoupling kit :
Install only the decoupling kit (Ref. 753103).
Seals provided in the decoupling kit must be
correctly placed to ensure the tightness of
the installation.
Power supply must be disconnected before
electrical connection of the decoupling kit.
The power cable and the PWM cable must
not be placed in the same grommet.
4.2.2.1 - Decoupling kit
2) Install the by-pass pipe ensuring the link between the two pipes
described in 1).
3) Tighten all the nuts.
4) Connect the decoupling circulator pump to the return of the
heating circuit. The arrow situated on the cast iron body of the
circulator pump must be upwards.
5) Connect the heating inlet and outlet pipes to the 1’’ threaded
connection and to the circulator pump.
6) Connect the power cable and the PWM cable to the connectors
of the circulator pump.
7) Pass the wires through the grommet of the
PRIMO Pilot
.
