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INSTALLATION
PRIMO PILOT
MANUAL
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7
1.
18L
buff er tank
2.
Heating
element
3.
Power
terminal
4.
Circulator
pump
5.
Electronic circuit board
6.
Expansion
vessel
7.
Heat
pump
8.
Decoupling pump (optional)
9.
By-pass
(optional)
10.
Heating circuit (radiator or
underfl oor heating)
11.
Domestic hot water circuit
12.
Decoupling kit
3.5 - Operating principles