Positioning The Probes; Pumps - Beretta POWER PLUS Installation Instruction

Positioning the Probes

The following probes/thermostats are installed for each heating unit:
CENTRAL HEATING
SAFETY THERMOSTAT
CENTRAL HEATING

Pumps

THE
POWER PLUS Boiler does not come with a pump, which must be installed in the system.
When choosing the pump, refer to the following system diagrams.
Confi guration with distribution pumps
Boiler discharge head: 7 mWC
Boiler fl ow-rate: 2 m /h for each heating unit.
3
Also consider the pressure drops in the individual circuit.
SE
V2 V2
SZ1
b
Install probes SZ1, SZ2 and SB in a probe socket (outside of the boiler).
OUTLET PROBE
FLUE GAS PROBE
RETURN PROBE
PB - DHW pump
PZ1 - Pump in zone 1
(high temperature)
PZ2 - Pump in zone 2
(low temperature)
V2 - Two-way valve
(accessory)
PB
PZ1
80°C
PZ2
SZ2
50°C
30°C
SZ1 - Probe in zone 1
SZ2 - Probe in zone 2
SB - DHW probe
SE - Outside probe
SB
60°C
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